* [PATCH 5.12 001/700] Bluetooth: hci_qca: fix potential GPF
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 002/700] Bluetooth: btqca: Dont modify firmware contents in-place Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rocky Liao, Pavel Skripkin,
Johan Hovold, Marcel Holtmann
From: Pavel Skripkin <paskripkin@gmail.com>
commit 59f90f1351282ea2dbd0c59098fd9bb2634e920e upstream.
In qca_power_shutdown() qcadev local variable is
initialized by hu->serdev.dev private data, but
hu->serdev can be NULL and there is a check for it.
Since, qcadev is not used before
if (!hu->serdev)
return;
we can move its initialization after this "if" to
prevent GPF.
Fixes: 5559904ccc08 ("Bluetooth: hci_qca: Add QCA Rome power off support to the qca_power_shutdown()")
Cc: stable@vger.kernel.org # v5.6+
Cc: Rocky Liao <rjliao@codeaurora.org>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/bluetooth/hci_qca.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1820,8 +1820,6 @@ static void qca_power_shutdown(struct hc
unsigned long flags;
enum qca_btsoc_type soc_type = qca_soc_type(hu);
- qcadev = serdev_device_get_drvdata(hu->serdev);
-
/* From this point we go into power off state. But serial port is
* still open, stop queueing the IBS data and flush all the buffered
* data in skb's.
@@ -1837,6 +1835,8 @@ static void qca_power_shutdown(struct hc
if (!hu->serdev)
return;
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+
if (qca_is_wcn399x(soc_type)) {
host_set_baudrate(hu, 2400);
qca_send_power_pulse(hu, false);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 002/700] Bluetooth: btqca: Dont modify firmware contents in-place
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 001/700] Bluetooth: hci_qca: fix potential GPF Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 003/700] Bluetooth: Remove spurious error message Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Venkata Lakshmi Narayana Gubba,
Connor Abbott, Marcel Holtmann
From: Connor Abbott <cwabbott0@gmail.com>
commit b43ca511178ed0ab6fd2405df28cf9e100273020 upstream.
struct firmware::data is marked const, and when the firmware is
compressed with xz (default at least with Fedora) it's mapped read-only
which results in a crash:
BUG: unable to handle page fault for address: ffffae57c0ca5047
PGD 100000067 P4D 100000067 PUD 1001ce067 PMD 10165a067 PTE 8000000112bba161
Oops: 0003 [#1] SMP NOPTI
CPU: 3 PID: 204 Comm: kworker/u17:0 Not tainted 5.12.1-test+ #1
Hardware name: Dell Inc. XPS 13 9310/0F7M4C, BIOS 1.2.5 12/10/2020
Workqueue: hci0 hci_power_on [bluetooth]
RIP: 0010:qca_download_firmware+0x27c/0x4e0 [btqca]
Code: 1b 75 04 80 48 0c 01 0f b7 c6 8d 54 02 0c 41 39 d7 0f 8e 62 fe ff ff 48 63 c2 4c 01 e8 0f b7 38 0f b7 70 02 66 83 ff 11 75 d3 <80> 48 0c 80 41 83 fc 03 7e 6e 88 58 0d eb ce 41 0f b6 45 0e 48 8b
RSP: 0018:ffffae57c08dfc68 EFLAGS: 00010246
RAX: ffffae57c0ca503b RBX: 000000000000000e RCX: 0000000000000000
RDX: 0000000000000037 RSI: 0000000000000006 RDI: 0000000000000011
RBP: ffff978d9949e000 R08: ffff978d84ed7540 R09: ffffae57c0ca5000
R10: 000000000010cd00 R11: 0000000000000001 R12: 0000000000000005
R13: ffffae57c0ca5004 R14: ffff978d98ca8680 R15: 00000000000016a9
FS: 0000000000000000(0000) GS:ffff9794ef6c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffae57c0ca5047 CR3: 0000000113d5a004 CR4: 0000000000770ee0
PKRU: 55555554
Call Trace:
qca_uart_setup+0x2cb/0x1390 [btqca]
? qca_read_soc_version+0x136/0x220 [btqca]
qca_setup+0x288/0xab0 [hci_uart]
hci_dev_do_open+0x1f3/0x780 [bluetooth]
? try_to_wake_up+0x1c1/0x4f0
hci_power_on+0x3f/0x200 [bluetooth]
process_one_work+0x1ec/0x380
worker_thread+0x53/0x3e0
? process_one_work+0x380/0x380
kthread+0x11b/0x140
? kthread_associate_blkcg+0xa0/0xa0
ret_from_fork+0x1f/0x30
Modules linked in: llc ip_set nf_tables nfnetlink snd_soc_skl_hda_dsp(+) ip6table_filter snd_soc_hdac_hdmi ip6_tables qrtr_mhi iptable_filter snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic s>
dell_wmi_sysman(+) dell_smbios snd dcdbas mhi vfat videobuf2_vmalloc i2c_i801 videobuf2_memops videobuf2_v4l2 dell_wmi_descriptor fat wmi_bmof soundcore i2c_smbus videobuf2_common libarc4 mei_me mei hid_se>
i2c_hid_acpi i2c_hid video pinctrl_tigerlake fuse
CR2: ffffae57c0ca5047
This also seems to fix a failure to suspend due to the firmware
download on bootup getting interrupted by the crash:
Bluetooth: hci0: SSR or FW download time out
PM: dpm_run_callback(): acpi_subsys_suspend+0x0/0x60 returns -110
PM: Device serial0-0 failed to suspend: error -110
PM: Some devices failed to suspend, or early wake event detected
Fixes: 83e8196 ("Bluetooth: btqca: Introduce generic QCA ROME support")
Cc: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/bluetooth/btqca.c | 27 ++++++++++++++++++++-------
1 file changed, 20 insertions(+), 7 deletions(-)
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -183,7 +183,7 @@ int qca_send_pre_shutdown_cmd(struct hci
EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
static void qca_tlv_check_data(struct qca_fw_config *config,
- const struct firmware *fw, enum qca_btsoc_type soc_type)
+ u8 *fw_data, enum qca_btsoc_type soc_type)
{
const u8 *data;
u32 type_len;
@@ -194,7 +194,7 @@ static void qca_tlv_check_data(struct qc
struct tlv_type_nvm *tlv_nvm;
uint8_t nvm_baud_rate = config->user_baud_rate;
- tlv = (struct tlv_type_hdr *)fw->data;
+ tlv = (struct tlv_type_hdr *)fw_data;
type_len = le32_to_cpu(tlv->type_len);
length = (type_len >> 8) & 0x00ffffff;
@@ -390,8 +390,9 @@ static int qca_download_firmware(struct
enum qca_btsoc_type soc_type)
{
const struct firmware *fw;
+ u8 *data;
const u8 *segment;
- int ret, remain, i = 0;
+ int ret, size, remain, i = 0;
bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
@@ -402,10 +403,22 @@ static int qca_download_firmware(struct
return ret;
}
- qca_tlv_check_data(config, fw, soc_type);
+ size = fw->size;
+ data = vmalloc(fw->size);
+ if (!data) {
+ bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s",
+ config->fwname);
+ release_firmware(fw);
+ return -ENOMEM;
+ }
+
+ memcpy(data, fw->data, size);
+ release_firmware(fw);
+
+ qca_tlv_check_data(config, data, soc_type);
- segment = fw->data;
- remain = fw->size;
+ segment = data;
+ remain = size;
while (remain > 0) {
int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
@@ -435,7 +448,7 @@ static int qca_download_firmware(struct
ret = qca_inject_cmd_complete_event(hdev);
out:
- release_firmware(fw);
+ vfree(data);
return ret;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 003/700] Bluetooth: Remove spurious error message
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 001/700] Bluetooth: hci_qca: fix potential GPF Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 002/700] Bluetooth: btqca: Dont modify firmware contents in-place Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 004/700] ALSA: usb-audio: fix rate on Ozone Z90 USB headset Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Szymon Janc, Marcel Holtmann
From: Szymon Janc <szymon.janc@codecoup.pl>
commit 1c58e933aba23f68c0d3f192f7cc6eed8fabd694 upstream.
Even with rate limited reporting this is very spammy and since
it is remote device that is providing bogus data there is no
need to report this as error.
Since real_len variable was used only to allow conditional error
message it is now also removed.
[72454.143336] bt_err_ratelimited: 10 callbacks suppressed
[72454.143337] Bluetooth: hci0: advertising data len corrected
[72454.296314] Bluetooth: hci0: advertising data len corrected
[72454.892329] Bluetooth: hci0: advertising data len corrected
[72455.051319] Bluetooth: hci0: advertising data len corrected
[72455.357326] Bluetooth: hci0: advertising data len corrected
[72455.663295] Bluetooth: hci0: advertising data len corrected
[72455.787278] Bluetooth: hci0: advertising data len corrected
[72455.942278] Bluetooth: hci0: advertising data len corrected
[72456.094276] Bluetooth: hci0: advertising data len corrected
[72456.249137] Bluetooth: hci0: advertising data len corrected
[72459.416333] bt_err_ratelimited: 13 callbacks suppressed
[72459.416334] Bluetooth: hci0: advertising data len corrected
[72459.721334] Bluetooth: hci0: advertising data len corrected
[72460.011317] Bluetooth: hci0: advertising data len corrected
[72460.327171] Bluetooth: hci0: advertising data len corrected
[72460.638294] Bluetooth: hci0: advertising data len corrected
[72460.946350] Bluetooth: hci0: advertising data len corrected
[72461.225320] Bluetooth: hci0: advertising data len corrected
[72461.690322] Bluetooth: hci0: advertising data len corrected
[72462.118318] Bluetooth: hci0: advertising data len corrected
[72462.427319] Bluetooth: hci0: advertising data len corrected
[72464.546319] bt_err_ratelimited: 7 callbacks suppressed
[72464.546319] Bluetooth: hci0: advertising data len corrected
[72464.857318] Bluetooth: hci0: advertising data len corrected
[72465.163332] Bluetooth: hci0: advertising data len corrected
[72465.278331] Bluetooth: hci0: advertising data len corrected
[72465.432323] Bluetooth: hci0: advertising data len corrected
[72465.891334] Bluetooth: hci0: advertising data len corrected
[72466.045334] Bluetooth: hci0: advertising data len corrected
[72466.197321] Bluetooth: hci0: advertising data len corrected
[72466.340318] Bluetooth: hci0: advertising data len corrected
[72466.498335] Bluetooth: hci0: advertising data len corrected
[72469.803299] bt_err_ratelimited: 10 callbacks suppressed
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=203753
Cc: stable@vger.kernel.org
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/bluetooth/hci_event.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5416,7 +5416,7 @@ static void process_adv_report(struct hc
struct hci_conn *conn;
bool match;
u32 flags;
- u8 *ptr, real_len;
+ u8 *ptr;
switch (type) {
case LE_ADV_IND:
@@ -5447,14 +5447,10 @@ static void process_adv_report(struct hc
break;
}
- real_len = ptr - data;
-
- /* Adjust for actual length */
- if (len != real_len) {
- bt_dev_err_ratelimited(hdev, "advertising data len corrected %u -> %u",
- len, real_len);
- len = real_len;
- }
+ /* Adjust for actual length. This handles the case when remote
+ * device is advertising with incorrect data length.
+ */
+ len = ptr - data;
/* If the direct address is present, then this report is from
* a LE Direct Advertising Report event. In that case it is
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 004/700] ALSA: usb-audio: fix rate on Ozone Z90 USB headset
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (2 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 003/700] Bluetooth: Remove spurious error message Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 005/700] ALSA: usb-audio: Fix OOB access at proc output Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Daehwan Jung, Takashi Iwai
From: Daehwan Jung <dh10.jung@samsung.com>
commit aecc19ec404bdc745c781058ac97a373731c3089 upstream.
It mislabels its 96 kHz altsetting and that's why it causes some noise
Signed-off-by: Daehwan Jung <dh10.jung@samsung.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1623836097-61918-1-git-send-email-dh10.jung@samsung.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/format.c | 2 ++
1 file changed, 2 insertions(+)
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -223,9 +223,11 @@ static int parse_audio_format_rates_v1(s
continue;
/* C-Media CM6501 mislabels its 96 kHz altsetting */
/* Terratec Aureon 7.1 USB C-Media 6206, too */
+ /* Ozone Z90 USB C-Media, too */
if (rate == 48000 && nr_rates == 1 &&
(chip->usb_id == USB_ID(0x0d8c, 0x0201) ||
chip->usb_id == USB_ID(0x0d8c, 0x0102) ||
+ chip->usb_id == USB_ID(0x0d8c, 0x0078) ||
chip->usb_id == USB_ID(0x0ccd, 0x00b1)) &&
fp->altsetting == 5 && fp->maxpacksize == 392)
rate = 96000;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 005/700] ALSA: usb-audio: Fix OOB access at proc output
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:01 ` [PATCH 5.12 004/700] ALSA: usb-audio: fix rate on Ozone Z90 USB headset Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 006/700] ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 362372ceb6556f338e230f2d90af27b47f82365a upstream.
At extending the available mixer values for 32bit types, we forgot to
add the corresponding entries for the format dump in the proc output.
This may result in OOB access. Here adds the missing entries.
Fixes: bc18e31c3042 ("ALSA: usb-audio: Fix parameter block size for UAC2 control requests")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210622090647.14021-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/mixer.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3279,8 +3279,9 @@ static void snd_usb_mixer_dump_cval(stru
struct usb_mixer_elem_list *list)
{
struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
- static const char * const val_types[] = {"BOOLEAN", "INV_BOOLEAN",
- "S8", "U8", "S16", "U16"};
+ static const char * const val_types[] = {
+ "BOOLEAN", "INV_BOOLEAN", "S8", "U8", "S16", "U16", "S32", "U32",
+ };
snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, "
"channels=%i, type=\"%s\"\n", cval->head.id,
cval->control, cval->cmask, cval->channels,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 006/700] ALSA: firewire-motu: fix stream format for MOTU 8pre FireWire
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 007/700] ALSA: usb-audio: scarlett2: Fix wrong resume call Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Sakamoto, Takashi Iwai
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
commit fc36ef80ca2c68b2c9df06178048f08280e4334f upstream.
My previous refactoring for ALSA firewire-motu driver brought regression
to handle MOTU 8pre FireWire. The packet format is not operated correctly.
Cc: <stable@vger.kernel.org>
Fixes: dfbaa4dc11eb ("ALSA: firewire-motu: add model-specific table of chunk count")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210614083133.39753-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/firewire/motu/motu-protocol-v2.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/sound/firewire/motu/motu-protocol-v2.c
+++ b/sound/firewire/motu/motu-protocol-v2.c
@@ -353,6 +353,7 @@ const struct snd_motu_spec snd_motu_spec
.protocol_version = SND_MOTU_PROTOCOL_V2,
.flags = SND_MOTU_SPEC_RX_MIDI_2ND_Q |
SND_MOTU_SPEC_TX_MIDI_2ND_Q,
- .tx_fixed_pcm_chunks = {10, 6, 0},
- .rx_fixed_pcm_chunks = {10, 6, 0},
+ // Two dummy chunks always in the end of data block.
+ .tx_fixed_pcm_chunks = {10, 10, 0},
+ .rx_fixed_pcm_chunks = {6, 6, 0},
};
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 007/700] ALSA: usb-audio: scarlett2: Fix wrong resume call
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 008/700] ALSA: intel8x0: Fix breakage at ac97 clock measurement Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Geoffrey D. Bennett, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 785b6f29a795f109685f286b91e0250c206fbffb upstream.
The current way of the scarlett2 mixer code managing the
usb_mixer_elem_info object is wrong in two ways: it passes its
internal index to the head.id field, and the val_type field is
uninitialized. This ended up with the wrong execution at the resume
because a bogus unit id is passed wrongly. Also, in the later code
extensions, we'll have more mixer elements, and passing the index will
overflow the unit id size (of 256).
This patch corrects those issues. It introduces a new value type,
USB_MIXER_BESPOKEN, which indicates a non-standard mixer element, and
use this type for all scarlett2 mixer elements, as well as
initializing the fixed unit id 0 for avoiding the overflow.
Tested-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/49721219f45b7e175e729b0d9d9c142fd8f4342a.1624379707.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/usb/mixer.c | 3 +++
sound/usb/mixer.h | 1 +
sound/usb/mixer_scarlett_gen2.c | 7 ++++++-
3 files changed, 10 insertions(+), 1 deletion(-)
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3591,6 +3591,9 @@ static int restore_mixer_value(struct us
struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
int c, err, idx;
+ if (cval->val_type == USB_MIXER_BESPOKEN)
+ return 0;
+
if (cval->cmask) {
idx = 0;
for (c = 0; c < MAX_CHANNELS; c++) {
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -55,6 +55,7 @@ enum {
USB_MIXER_U16,
USB_MIXER_S32,
USB_MIXER_U32,
+ USB_MIXER_BESPOKEN, /* non-standard type */
};
typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -949,10 +949,15 @@ static int scarlett2_add_new_ctl(struct
if (!elem)
return -ENOMEM;
+ /* We set USB_MIXER_BESPOKEN type, so that the core USB mixer code
+ * ignores them for resume and other operations.
+ * Also, the head.id field is set to 0, as we don't use this field.
+ */
elem->head.mixer = mixer;
elem->control = index;
- elem->head.id = index;
+ elem->head.id = 0;
elem->channels = channels;
+ elem->val_type = USB_MIXER_BESPOKEN;
kctl = snd_ctl_new1(ncontrol, elem);
if (!kctl) {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 008/700] ALSA: intel8x0: Fix breakage at ac97 clock measurement
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (6 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 007/700] ALSA: usb-audio: scarlett2: Fix wrong resume call Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 009/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8 Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergey Senozhatsky, Takashi Iwai,
Max Filippov
From: Takashi Iwai <tiwai@suse.de>
commit 24d1e49415be546470b20429d748e240d0518b7e upstream.
The recent workaround for the wild interrupts in commit c1f0616124c4
("ALSA: intel8x0: Don't update period unless prepared") leaded to a
regression, causing the interrupt storm during ac97 clock measurement
at the driver probe. We need to handle the interrupt while the clock
measurement as well as the proper PCM streams.
Fixes: c1f0616124c4 ("ALSA: intel8x0: Don't update period unless prepared")
Reported-and-tested-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAMo8BfKKMQkcsbOQaeEjq_FsJhdK=fn598dvh7YOcZshUSOH=g@mail.gmail.com
Link: https://lore.kernel.org/r/20210708090738.1569-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/intel8x0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -692,7 +692,7 @@ static inline void snd_intel8x0_update(s
int status, civ, i, step;
int ack = 0;
- if (!ichdev->prepared || ichdev->suspended)
+ if (!(ichdev->prepared || chip->in_measurement) || ichdev->suspended)
return;
spin_lock_irqsave(&chip->reg_lock, flags);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 009/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (7 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 008/700] ALSA: intel8x0: Fix breakage at ac97 clock measurement Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 010/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8 Greg Kroah-Hartman
` (696 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Andy Chi, Takashi Iwai
From: Andy Chi <andy.chi@canonical.com>
commit 2b70b264d34d398c77a5936e317336f00cf5badb upstream.
The HP ProBook 450 G8 using ALC236 codec which using 0x02 to
control mute LED and 0x01 to control micmute LED.
Therefore, add a quirk to make it works.
Signed-off-by: Andy Chi <andy.chi@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210701091417.9696-1-andy.chi@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8322,6 +8322,7 @@ static const struct snd_pci_quirk alc269
ALC285_FIXUP_HP_GPIO_AMP_INIT),
SND_PCI_QUIRK(0x103c, 0x87c8, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87e5, "HP ProBook 440 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
+ SND_PCI_QUIRK(0x103c, 0x87e7, "HP ProBook 450 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f2, "HP ProBook 640 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f4, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f5, "HP", ALC287_FIXUP_HP_GPIO_LED),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 010/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (8 preceding siblings ...)
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@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 011/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8 Greg Kroah-Hartman
` (695 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Andy Chi, Takashi Iwai
From: Andy Chi <andy.chi@canonical.com>
commit a3b7f9b8fa2967e1b3c2a402301715124c90306b upstream.
The HP ProBook 445 G8 using ALC236 codec.
COEF index 0x34 bit 5 is used to control the playback mute LED, but the
microphone mute LED is controlled using pin VREF instead of a COEF index.
Therefore, add a quirk to make it works.
Signed-off-by: Andy Chi <andy.chi@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210701091417.9696-2-andy.chi@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 2 ++
1 file changed, 2 insertions(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8330,6 +8330,8 @@ static const struct snd_pci_quirk alc269
SND_PCI_QUIRK(0x103c, 0x8846, "HP EliteBook 850 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x884b, "HP EliteBook 840 Aero G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x884c, "HP EliteBook 840 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
+ SND_PCI_QUIRK(0x103c, 0x8862, "HP ProBook 445 G8 Notebook PC", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
+ SND_PCI_QUIRK(0x103c, 0x8863, "HP ProBook 445 G8 Notebook PC", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
SND_PCI_QUIRK(0x103c, 0x886d, "HP ZBook Fury 17.3 Inch G8 Mobile Workstation PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
SND_PCI_QUIRK(0x103c, 0x8870, "HP ZBook Fury 15.6 Inch G8 Mobile Workstation PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
SND_PCI_QUIRK(0x103c, 0x8873, "HP ZBook Studio 15.6 Inch G8 Mobile Workstation PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 011/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (9 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 010/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8 Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 012/700] ALSA: hda/realtek: Add another ALC236 variant support Greg Kroah-Hartman
` (694 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Andy Chi, Takashi Iwai
From: Andy Chi <andy.chi@canonical.com>
commit fb3acdb2ba289aa06a5a995b3abef409bfe0a220 upstream.
The HP ProBook 630 G8 using ALC236 codec which using 0x02 to
control mute LED and 0x01 to control micmute LED.
Therefore, add a quirk to make it works.
Signed-off-by: Andy Chi <andy.chi@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210701091417.9696-3-andy.chi@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8323,6 +8323,7 @@ static const struct snd_pci_quirk alc269
SND_PCI_QUIRK(0x103c, 0x87c8, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87e5, "HP ProBook 440 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87e7, "HP ProBook 450 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
+ SND_PCI_QUIRK(0x103c, 0x87f1, "HP ProBook 630 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f2, "HP ProBook 640 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f4, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f5, "HP", ALC287_FIXUP_HP_GPIO_LED),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 012/700] ALSA: hda/realtek: Add another ALC236 variant support
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (10 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 011/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8 Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 013/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook x360 830 G8 Greg Kroah-Hartman
` (693 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 1948fc065a89f18d057b8ffaef6d7242ad99edb8 upstream.
The codec chip 10ec:0230 is another variant of ALC236, combined with a
card reader. Apply the equivalent setup as 10ec:0236.
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1184869
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210618161720.28694-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -385,6 +385,7 @@ static void alc_fill_eapd_coef(struct hd
alc_update_coef_idx(codec, 0x67, 0xf000, 0x3000);
fallthrough;
case 0x10ec0215:
+ case 0x10ec0230:
case 0x10ec0233:
case 0x10ec0235:
case 0x10ec0236:
@@ -3153,6 +3154,7 @@ static void alc_disable_headset_jack_key
alc_update_coef_idx(codec, 0x49, 0x0045, 0x0);
alc_update_coef_idx(codec, 0x44, 0x0045 << 8, 0x0);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_write_coef_idx(codec, 0x48, 0x0);
@@ -3180,6 +3182,7 @@ static void alc_enable_headset_jack_key(
alc_update_coef_idx(codec, 0x49, 0x007f, 0x0045);
alc_update_coef_idx(codec, 0x44, 0x007f << 8, 0x0045 << 8);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_write_coef_idx(codec, 0x48, 0xd011);
@@ -4737,6 +4740,7 @@ static void alc_headset_mode_unplugged(s
case 0x10ec0255:
alc_process_coef_fw(codec, coef0255);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_process_coef_fw(codec, coef0256);
@@ -4851,6 +4855,7 @@ static void alc_headset_mode_mic_in(stru
alc_process_coef_fw(codec, coef0255);
snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_write_coef_idx(codec, 0x45, 0xc489);
@@ -5000,6 +5005,7 @@ static void alc_headset_mode_default(str
case 0x10ec0255:
alc_process_coef_fw(codec, coef0255);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_write_coef_idx(codec, 0x1b, 0x0e4b);
@@ -5098,6 +5104,7 @@ static void alc_headset_mode_ctia(struct
case 0x10ec0255:
alc_process_coef_fw(codec, coef0255);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_process_coef_fw(codec, coef0256);
@@ -5211,6 +5218,7 @@ static void alc_headset_mode_omtp(struct
case 0x10ec0255:
alc_process_coef_fw(codec, coef0255);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_process_coef_fw(codec, coef0256);
@@ -5311,6 +5319,7 @@ static void alc_determine_headset_type(s
val = alc_read_coef_idx(codec, 0x46);
is_ctia = (val & 0x0070) == 0x0070;
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_write_coef_idx(codec, 0x1b, 0x0e4b);
@@ -5604,6 +5613,7 @@ static void alc255_set_default_jack_type
case 0x10ec0255:
alc_process_coef_fw(codec, alc255fw);
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
alc_process_coef_fw(codec, alc256fw);
@@ -6204,6 +6214,7 @@ static void alc_combo_jack_hp_jd_restart
alc_update_coef_idx(codec, 0x4a, 0x8000, 1 << 15); /* Reset HP JD */
alc_update_coef_idx(codec, 0x4a, 0x8000, 0 << 15);
break;
+ case 0x10ec0230:
case 0x10ec0235:
case 0x10ec0236:
case 0x10ec0255:
@@ -9330,6 +9341,7 @@ static int patch_alc269(struct hda_codec
spec->shutup = alc256_shutup;
spec->init_hook = alc256_init;
break;
+ case 0x10ec0230:
case 0x10ec0236:
case 0x10ec0256:
spec->codec_variant = ALC269_TYPE_ALC256;
@@ -10621,6 +10633,7 @@ static const struct hda_device_id snd_hd
HDA_CODEC_ENTRY(0x10ec0221, "ALC221", patch_alc269),
HDA_CODEC_ENTRY(0x10ec0222, "ALC222", patch_alc269),
HDA_CODEC_ENTRY(0x10ec0225, "ALC225", patch_alc269),
+ HDA_CODEC_ENTRY(0x10ec0230, "ALC236", patch_alc269),
HDA_CODEC_ENTRY(0x10ec0231, "ALC231", patch_alc269),
HDA_CODEC_ENTRY(0x10ec0233, "ALC233", patch_alc269),
HDA_CODEC_ENTRY(0x10ec0234, "ALC234", patch_alc269),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 013/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook x360 830 G8
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (11 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 012/700] ALSA: hda/realtek: Add another ALC236 variant support Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 014/700] ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jeremy Szu, Takashi Iwai
From: Jeremy Szu <jeremy.szu@canonical.com>
commit c3d2c88209e85045a364e80fe12a6cde16745b72 upstream.
The HP EliteBook x360 830 G8 using ALC285 codec which using 0x04 to
control mute LED and 0x01 to control micmute LED.
Therefore, add a quirk to make it works.
Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210617171422.16652-1-jeremy.szu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8340,6 +8340,7 @@ static const struct snd_pci_quirk alc269
SND_PCI_QUIRK(0x103c, 0x87f5, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f7, "HP Spectre x360 14", ALC245_FIXUP_HP_X360_AMP),
SND_PCI_QUIRK(0x103c, 0x8846, "HP EliteBook 850 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
+ SND_PCI_QUIRK(0x103c, 0x8847, "HP EliteBook x360 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x884b, "HP EliteBook 840 Aero G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x884c, "HP EliteBook 840 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x8862, "HP ProBook 445 G8 Notebook PC", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 014/700] ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (12 preceding siblings ...)
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@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 015/700] ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Elia Devito, Takashi Iwai
From: Elia Devito <eliadevito@gmail.com>
commit 434591b2a77def0e78abfa38e5d7c4bca954e68a upstream.
On HP Spectre x360 15-df0xxx, after system boot with plugged headset, the
headset mic are not detected.
Moving pincfg and DAC's config to single fixup function fix this.
[ The actual bug in the original code was that it used a chain to
ALC286_FIXUP_SPEAKER2_TO_DAC1, and it contains not only the DAC1
route fix but also another chain to ALC269_FIXUP_THINKPAD_ACPI.
I thought the latter one is harmless for non-Thinkpad, but it
doesn't seem so; it contains again yet another chain to
ALC269_FIXUP_SKI_IGNORE, and this might be bad for some machines,
including this HP machine. -- tiwai ]
Signed-off-by: Elia Devito <eliadevito@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210619204105.5682-1-eliadevito@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 27 ++++++++++++++++++++-------
1 file changed, 20 insertions(+), 7 deletions(-)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6347,6 +6347,24 @@ static void alc_fixup_no_int_mic(struct
}
}
+static void alc285_fixup_hp_spectre_x360(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+ static const hda_nid_t conn[] = { 0x02 };
+ static const struct hda_pintbl pincfgs[] = {
+ { 0x14, 0x90170110 }, /* rear speaker */
+ { }
+ };
+
+ switch (action) {
+ case HDA_FIXUP_ACT_PRE_PROBE:
+ snd_hda_apply_pincfgs(codec, pincfgs);
+ /* force front speaker to DAC1 */
+ snd_hda_override_conn_list(codec, 0x17, ARRAY_SIZE(conn), conn);
+ break;
+ }
+}
+
/* for hda_fixup_thinkpad_acpi() */
#include "thinkpad_helper.c"
@@ -8124,13 +8142,8 @@ static const struct hda_fixup alc269_fix
.chain_id = ALC269_FIXUP_HP_LINE1_MIC1_LED,
},
[ALC285_FIXUP_HP_SPECTRE_X360] = {
- .type = HDA_FIXUP_PINS,
- .v.pins = (const struct hda_pintbl[]) {
- { 0x14, 0x90170110 }, /* enable top speaker */
- {}
- },
- .chained = true,
- .chain_id = ALC285_FIXUP_SPEAKER2_TO_DAC1,
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc285_fixup_hp_spectre_x360,
},
[ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP] = {
.type = HDA_FIXUP_FUNC,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 015/700] ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (13 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 014/700] ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 016/700] ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too Greg Kroah-Hartman
` (690 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit f8fbcdfb0665de60997d9746809e1704ed782bbc upstream.
Asus Zenbook 14 UM431D has two speaker pins and a headphone pin, and
the auto-parser ends up assigning the bass to the third DAC 0x06.
Although the tone comes out, it's inconvenient because this DAC has no
volume control unlike two other DACs.
For obtaining the volume control for the bass speaker, this patch
enforces the mapping to let both front and bass speaker pins sharing
the same DAC. It's not ideal but a little bit of improvement.
Since we've already applied the same workaround for another ASUS
machine, we just need to hook the chain to the existing quirk.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212547
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210620065952.18948-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 2 ++
1 file changed, 2 insertions(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -7831,6 +7831,8 @@ static const struct hda_fixup alc269_fix
{ 0x20, AC_VERB_SET_PROC_COEF, 0x4e4b },
{ }
},
+ .chained = true,
+ .chain_id = ALC289_FIXUP_ASUS_GA401,
},
[ALC285_FIXUP_HP_GPIO_LED] = {
.type = HDA_FIXUP_FUNC,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 016/700] ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (14 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 015/700] ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 017/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai
From: Takashi Iwai <tiwai@suse.de>
commit 0ac05b25c3dd8299204ae9d50c1c2f7f05eef08f upstream.
HP Dragonfly G1 (SSID 103c:861f) also requires the same quirk for the
mute and mic-mute LED just as Dragonfly G2 model.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213329
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210623122022.26179-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8331,6 +8331,7 @@ static const struct snd_pci_quirk alc269
SND_PCI_QUIRK(0x103c, 0x84da, "HP OMEN dc0019-ur", ALC295_FIXUP_HP_OMEN),
SND_PCI_QUIRK(0x103c, 0x84e7, "HP Pavilion 15", ALC269_FIXUP_HP_MUTE_LED_MIC3),
SND_PCI_QUIRK(0x103c, 0x8519, "HP Spectre x360 15-df0xxx", ALC285_FIXUP_HP_SPECTRE_X360),
+ SND_PCI_QUIRK(0x103c, 0x861f, "HP Elite Dragonfly G1", ALC285_FIXUP_HP_GPIO_AMP_INIT),
SND_PCI_QUIRK(0x103c, 0x869d, "HP", ALC236_FIXUP_HP_MUTE_LED),
SND_PCI_QUIRK(0x103c, 0x86c7, "HP Envy AiO 32", ALC274_FIXUP_HP_ENVY_GPIO),
SND_PCI_QUIRK(0x103c, 0x8716, "HP Elite Dragonfly G2 Notebook PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 017/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (15 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 016/700] ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 018/700] media: dvb-usb: fix wrong definition Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jeremy Szu, Takashi Iwai
From: Jeremy Szu <jeremy.szu@canonical.com>
commit dfc2e8ae4066a95c7f9c2bb2dfa26651feaa6b83 upstream.
The HP EliteBook 830 G8 Notebook PC using ALC285 codec which using 0x04 to
control mute LED and 0x01 to control micmute LED.
Therefore, add a quirk to make it works.
Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210625133414.26760-1-jeremy.szu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/pci/hda/patch_realtek.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8355,6 +8355,7 @@ static const struct snd_pci_quirk alc269
SND_PCI_QUIRK(0x103c, 0x87f4, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f5, "HP", ALC287_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x87f7, "HP Spectre x360 14", ALC245_FIXUP_HP_X360_AMP),
+ SND_PCI_QUIRK(0x103c, 0x880d, "HP EliteBook 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x8846, "HP EliteBook 850 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x8847, "HP EliteBook x360 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
SND_PCI_QUIRK(0x103c, 0x884b, "HP EliteBook 840 Aero G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 018/700] media: dvb-usb: fix wrong definition
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (16 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 017/700] ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 019/700] Input: usbtouchscreen - fix control-request directions Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+7336195c02c1bd2f64e1,
Pavel Skripkin, Sean Young, Mauro Carvalho Chehab
From: Pavel Skripkin <paskripkin@gmail.com>
commit c680ed46e418e9c785d76cf44eb33bfd1e8cf3f6 upstream.
syzbot reported WARNING in vmalloc. The problem
was in zero size passed to vmalloc.
The root case was in wrong cxusb_bluebird_lgz201_properties
definition. adapter array has only 1 entry, but num_adapters was
2.
Call Trace:
__vmalloc_node mm/vmalloc.c:2963 [inline]
vmalloc+0x67/0x80 mm/vmalloc.c:2996
dvb_dmx_init+0xe4/0xb90 drivers/media/dvb-core/dvb_demux.c:1251
dvb_usb_adapter_dvb_init+0x564/0x860 drivers/media/usb/dvb-usb/dvb-usb-dvb.c:184
dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:86 [inline]
dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:184 [inline]
dvb_usb_device_init.cold+0xc94/0x146e drivers/media/usb/dvb-usb/dvb-usb-init.c:308
cxusb_probe+0x159/0x5e0 drivers/media/usb/dvb-usb/cxusb.c:1634
Fixes: 4d43e13f723e ("V4L/DVB (4643): Multi-input patch for DVB-USB device")
Cc: stable@vger.kernel.org
Reported-by: syzbot+7336195c02c1bd2f64e1@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/usb/dvb-usb/cxusb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -1947,7 +1947,7 @@ static struct dvb_usb_device_properties
.size_of_priv = sizeof(struct cxusb_state),
- .num_adapters = 2,
+ .num_adapters = 1,
.adapter = {
{
.num_frontends = 1,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 019/700] Input: usbtouchscreen - fix control-request directions
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (17 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 018/700] media: dvb-usb: fix wrong definition Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 020/700] net: can: ems_usb: fix use-after-free in ems_usb_disconnect() Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Johan Hovold, Dmitry Torokhov
From: Johan Hovold <johan@kernel.org>
commit 41e81022a04a0294c55cfa7e366bc14b9634c66e upstream.
The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.
Fix the four control requests which erroneously used usb_rcvctrlpipe().
Fixes: 1d3e20236d7a ("[PATCH] USB: usbtouchscreen: unified USB touchscreen driver")
Fixes: 24ced062a296 ("usbtouchscreen: add support for DMC TSC-10/25 devices")
Fixes: 9e3b25837a20 ("Input: usbtouchscreen - add support for e2i touchscreen controller")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org # 2.6.17
Link: https://lore.kernel.org/r/20210524092048.4443-1-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/touchscreen/usbtouchscreen.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -251,7 +251,7 @@ static int e2i_init(struct usbtouch_usb
int ret;
struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
- ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
0x01, 0x02, 0x0000, 0x0081,
NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -531,7 +531,7 @@ static int mtouch_init(struct usbtouch_u
if (ret)
return ret;
- ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
MTOUCHUSB_RESET,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -543,7 +543,7 @@ static int mtouch_init(struct usbtouch_u
msleep(150);
for (i = 0; i < 3; i++) {
- ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
MTOUCHUSB_ASYNC_REPORT,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -722,7 +722,7 @@ static int dmc_tsc10_init(struct usbtouc
}
/* start sending data */
- ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
+ ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
TSC10_CMD_DATA1,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 020/700] net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (18 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 019/700] Input: usbtouchscreen - fix control-request directions Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 021/700] usb: gadget: eem: fix echo command packet response issue Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Marc Kleine-Budde
From: Pavel Skripkin <paskripkin@gmail.com>
commit ab4a0b8fcb9a95c02909b62049811bd2e586aaa4 upstream.
In ems_usb_disconnect() dev pointer, which is netdev private data, is
used after free_candev() call:
| if (dev) {
| unregister_netdev(dev->netdev);
| free_candev(dev->netdev);
|
| unlink_all_urbs(dev);
|
| usb_free_urb(dev->intr_urb);
|
| kfree(dev->intr_in_buffer);
| kfree(dev->tx_msg_buffer);
| }
Fix it by simply moving free_candev() at the end of the block.
Fail log:
| BUG: KASAN: use-after-free in ems_usb_disconnect
| Read of size 8 at addr ffff88804e041008 by task kworker/1:2/2895
|
| CPU: 1 PID: 2895 Comm: kworker/1:2 Not tainted 5.13.0-rc5+ #164
| Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a-rebuilt.opensuse.4
| Workqueue: usb_hub_wq hub_event
| Call Trace:
| dump_stack (lib/dump_stack.c:122)
| print_address_description.constprop.0.cold (mm/kasan/report.c:234)
| kasan_report.cold (mm/kasan/report.c:420 mm/kasan/report.c:436)
| ems_usb_disconnect (drivers/net/can/usb/ems_usb.c:683 drivers/net/can/usb/ems_usb.c:1058)
Fixes: 702171adeed3 ("ems_usb: Added support for EMS CPC-USB/ARM7 CAN/USB interface")
Link: https://lore.kernel.org/r/20210617185130.5834-1-paskripkin@gmail.com
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/can/usb/ems_usb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -1053,7 +1053,6 @@ static void ems_usb_disconnect(struct us
if (dev) {
unregister_netdev(dev->netdev);
- free_candev(dev->netdev);
unlink_all_urbs(dev);
@@ -1061,6 +1060,8 @@ static void ems_usb_disconnect(struct us
kfree(dev->intr_in_buffer);
kfree(dev->tx_msg_buffer);
+
+ free_candev(dev->netdev);
}
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 021/700] usb: gadget: eem: fix echo command packet response issue
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (19 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 020/700] net: can: ems_usb: fix use-after-free in ems_usb_disconnect() Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 022/700] usb: renesas-xhci: Fix handling of unknown ROM state Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Linyu Yuan
From: Linyu Yuan <linyyuan@codeaurora.com>
commit 4249d6fbc10fd997abdf8a1ea49c0389a0edf706 upstream.
when receive eem echo command, it will send a response,
but queue this response to the usb request which allocate
from gadget device endpoint zero,
and transmit the request to IN endpoint of eem interface.
on dwc3 gadget, it will trigger following warning in function
__dwc3_gadget_ep_queue(),
if (WARN(req->dep != dep, "request %pK belongs to '%s'\n",
&req->request, req->dep->name))
return -EINVAL;
fix it by allocating a usb request from IN endpoint of eem interface,
and transmit the usb request to same IN endpoint of eem interface.
Signed-off-by: Linyu Yuan <linyyuan@codeaurora.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210616115142.34075-1-linyyuan@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/gadget/function/f_eem.c | 43 ++++++++++++++++++++++++++++++++----
1 file changed, 39 insertions(+), 4 deletions(-)
--- a/drivers/usb/gadget/function/f_eem.c
+++ b/drivers/usb/gadget/function/f_eem.c
@@ -30,6 +30,11 @@ struct f_eem {
u8 ctrl_id;
};
+struct in_context {
+ struct sk_buff *skb;
+ struct usb_ep *ep;
+};
+
static inline struct f_eem *func_to_eem(struct usb_function *f)
{
return container_of(f, struct f_eem, port.func);
@@ -320,9 +325,12 @@ fail:
static void eem_cmd_complete(struct usb_ep *ep, struct usb_request *req)
{
- struct sk_buff *skb = (struct sk_buff *)req->context;
+ struct in_context *ctx = req->context;
- dev_kfree_skb_any(skb);
+ dev_kfree_skb_any(ctx->skb);
+ kfree(req->buf);
+ usb_ep_free_request(ctx->ep, req);
+ kfree(ctx);
}
/*
@@ -410,7 +418,9 @@ static int eem_unwrap(struct gether *por
* b15: bmType (0 == data, 1 == command)
*/
if (header & BIT(15)) {
- struct usb_request *req = cdev->req;
+ struct usb_request *req;
+ struct in_context *ctx;
+ struct usb_ep *ep;
u16 bmEEMCmd;
/* EEM command packet format:
@@ -439,11 +449,36 @@ static int eem_unwrap(struct gether *por
skb_trim(skb2, len);
put_unaligned_le16(BIT(15) | BIT(11) | len,
skb_push(skb2, 2));
+
+ ep = port->in_ep;
+ req = usb_ep_alloc_request(ep, GFP_ATOMIC);
+ if (!req) {
+ dev_kfree_skb_any(skb2);
+ goto next;
+ }
+
+ req->buf = kmalloc(skb2->len, GFP_KERNEL);
+ if (!req->buf) {
+ usb_ep_free_request(ep, req);
+ dev_kfree_skb_any(skb2);
+ goto next;
+ }
+
+ ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx) {
+ kfree(req->buf);
+ usb_ep_free_request(ep, req);
+ dev_kfree_skb_any(skb2);
+ goto next;
+ }
+ ctx->skb = skb2;
+ ctx->ep = ep;
+
skb_copy_bits(skb2, 0, req->buf, skb2->len);
req->length = skb2->len;
req->complete = eem_cmd_complete;
req->zero = 1;
- req->context = skb2;
+ req->context = ctx;
if (usb_ep_queue(port->in_ep, req, GFP_ATOMIC))
DBG(cdev, "echo response queue fail\n");
break;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 022/700] usb: renesas-xhci: Fix handling of unknown ROM state
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (20 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 021/700] usb: gadget: eem: fix echo command packet response issue Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 023/700] USB: cdc-acm: blacklist Heimann USB Appset device Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mathias Nyman, Vinod Koul, Moritz Fischer
From: Moritz Fischer <mdf@kernel.org>
commit d143825baf15f204dac60acdf95e428182aa3374 upstream.
The ROM load sometimes seems to return an unknown status
(RENESAS_ROM_STATUS_NO_RESULT) instead of success / fail.
If the ROM load indeed failed this leads to failures when trying to
communicate with the controller later on.
Attempt to load firmware using RAM load in those cases.
Fixes: 2478be82de44 ("usb: renesas-xhci: Add ROM loader for uPD720201")
Cc: stable@vger.kernel.org
Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Vinod Koul <vkoul@kernel.org>
Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210615153758.253572-1-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/host/xhci-pci-renesas.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/usb/host/xhci-pci-renesas.c
+++ b/drivers/usb/host/xhci-pci-renesas.c
@@ -207,7 +207,8 @@ static int renesas_check_rom_state(struc
return 0;
case RENESAS_ROM_STATUS_NO_RESULT: /* No result yet */
- return 0;
+ dev_dbg(&pdev->dev, "Unknown ROM status ...\n");
+ break;
case RENESAS_ROM_STATUS_ERROR: /* Error State */
default: /* All other states are marked as "Reserved states" */
@@ -224,13 +225,12 @@ static int renesas_fw_check_running(stru
u8 fw_state;
int err;
- /* Check if device has ROM and loaded, if so skip everything */
- err = renesas_check_rom(pdev);
- if (err) { /* we have rom */
- err = renesas_check_rom_state(pdev);
- if (!err)
- return err;
- }
+ /*
+ * Only if device has ROM and loaded FW we can skip loading and
+ * return success. Otherwise (even unknown state), attempt to load FW.
+ */
+ if (renesas_check_rom(pdev) && !renesas_check_rom_state(pdev))
+ return 0;
/*
* Test if the device is actually needing the firmware. As most
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 023/700] USB: cdc-acm: blacklist Heimann USB Appset device
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (21 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 022/700] usb: renesas-xhci: Fix handling of unknown ROM state Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 024/700] usb: dwc3: Fix debugfs creation flow Greg Kroah-Hartman
` (682 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hannu Hartikainen
From: Hannu Hartikainen <hannu@hrtk.in>
commit 4897807753e078655a78de39ed76044d784f3e63 upstream.
The device (32a7:0000 Heimann Sensor GmbH USB appset demo) claims to be
a CDC-ACM device in its descriptors but in fact is not. If it is run
with echo disabled it returns garbled data, probably due to something
that happens in the TTY layer. And when run with echo enabled (the
default), it will mess up the calibration data of the sensor the first
time any data is sent to the device.
In short, I had a bad time after connecting the sensor and trying to get
it to work. I hope blacklisting it in the cdc-acm driver will save
someone else a bit of trouble.
Signed-off-by: Hannu Hartikainen <hannu@hrtk.in>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210622141454.337948-1-hannu@hrtk.in
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/class/cdc-acm.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1951,6 +1951,11 @@ static const struct usb_device_id acm_id
.driver_info = IGNORE_DEVICE,
},
+ /* Exclude Heimann Sensor GmbH USB appset demo */
+ { USB_DEVICE(0x32a7, 0x0000),
+ .driver_info = IGNORE_DEVICE,
+ },
+
/* control interfaces without any protocol set */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTO_NONE) },
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 024/700] usb: dwc3: Fix debugfs creation flow
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (22 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 023/700] USB: cdc-acm: blacklist Heimann USB Appset device Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 025/700] usb: typec: tcpci: Fix up sink disconnect thresholds for PD Greg Kroah-Hartman
` (681 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jack Pham, Minas Harutyunyan
From: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
commit 84524d1232ecca7cf8678e851b254f05cff4040a upstream.
Creation EP's debugfs called earlier than debugfs folder for dwc3
device created. As result EP's debugfs are created in '/sys/kernel/debug'
instead of '/sys/kernel/debug/usb/dwc3.1.auto'.
Moved dwc3_debugfs_init() function call before calling
dwc3_core_init_mode() to allow create dwc3 debugfs parent before
creating EP's debugfs's.
Fixes: 8d396bb0a5b6 ("usb: dwc3: debugfs: Add and remove endpoint dirs dynamically")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/01fafb5b2d8335e98e6eadbac61fc796bdf3ec1a.1623948457.git.Minas.Harutyunyan@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/dwc3/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1605,17 +1605,18 @@ static int dwc3_probe(struct platform_de
}
dwc3_check_params(dwc);
+ dwc3_debugfs_init(dwc);
ret = dwc3_core_init_mode(dwc);
if (ret)
goto err5;
- dwc3_debugfs_init(dwc);
pm_runtime_put(dev);
return 0;
err5:
+ dwc3_debugfs_exit(dwc);
dwc3_event_buffers_cleanup(dwc);
usb_phy_shutdown(dwc->usb2_phy);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 025/700] usb: typec: tcpci: Fix up sink disconnect thresholds for PD
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (23 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 024/700] usb: dwc3: Fix debugfs creation flow Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 026/700] usb: typec: tcpm: Relax disconnect threshold during power negotiation Greg Kroah-Hartman
` (680 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Heikki Krogerus, Badhri Jagan Sridharan
From: Badhri Jagan Sridharan <badhri@google.com>
commit 4288debeaa4e21d8dd5132739ffba2d343892bbf upstream.
"Table 4-3 VBUS Sink Characteristics" of "Type-C Cable and Connector
Specification" defines the disconnect voltage thresholds of various
configurations. This change fixes the disconnect threshold voltage
calculation based on vSinkPD_min and vSinkDisconnectPD as defined
by the table.
Fixes: e1a97bf80a022 ("usb: typec: tcpci: Implement Auto discharge disconnect callbacks")
Cc: stable <stable@vger.kernel.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210615174323.1160132-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/typec/tcpm/tcpci.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -21,8 +21,12 @@
#define PD_RETRY_COUNT_DEFAULT 3
#define PD_RETRY_COUNT_3_0_OR_HIGHER 2
#define AUTO_DISCHARGE_DEFAULT_THRESHOLD_MV 3500
-#define AUTO_DISCHARGE_PD_HEADROOM_MV 850
-#define AUTO_DISCHARGE_PPS_HEADROOM_MV 1250
+#define VSINKPD_MIN_IR_DROP_MV 750
+#define VSRC_NEW_MIN_PERCENT 95
+#define VSRC_VALID_MIN_MV 500
+#define VPPS_NEW_MIN_PERCENT 95
+#define VPPS_VALID_MIN_MV 100
+#define VSINKDISCONNECT_PD_MIN_PERCENT 90
#define tcpc_presenting_cc1_rd(reg) \
(!(TCPC_ROLE_CTRL_DRP & (reg)) && \
@@ -328,11 +332,13 @@ static int tcpci_set_auto_vbus_discharge
threshold = AUTO_DISCHARGE_DEFAULT_THRESHOLD_MV;
} else if (mode == TYPEC_PWR_MODE_PD) {
if (pps_active)
- threshold = (95 * requested_vbus_voltage_mv / 100) -
- AUTO_DISCHARGE_PD_HEADROOM_MV;
+ threshold = ((VPPS_NEW_MIN_PERCENT * requested_vbus_voltage_mv / 100) -
+ VSINKPD_MIN_IR_DROP_MV - VPPS_VALID_MIN_MV) *
+ VSINKDISCONNECT_PD_MIN_PERCENT / 100;
else
- threshold = (95 * requested_vbus_voltage_mv / 100) -
- AUTO_DISCHARGE_PPS_HEADROOM_MV;
+ threshold = ((VSRC_NEW_MIN_PERCENT * requested_vbus_voltage_mv / 100) -
+ VSINKPD_MIN_IR_DROP_MV - VSRC_VALID_MIN_MV) *
+ VSINKDISCONNECT_PD_MIN_PERCENT / 100;
} else {
/* 3.5V for non-pd sink */
threshold = AUTO_DISCHARGE_DEFAULT_THRESHOLD_MV;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 026/700] usb: typec: tcpm: Relax disconnect threshold during power negotiation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (24 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 025/700] usb: typec: tcpci: Fix up sink disconnect thresholds for PD Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 027/700] usb: typec: Add the missed altmode_id_remove() in typec_register_altmode() Greg Kroah-Hartman
` (679 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Badhri Jagan Sridharan,
Heikki Krogerus, Kyle Tso
From: Kyle Tso <kyletso@google.com>
commit 2b537cf877eae6d2f2f102052290676e40b74a1d upstream.
If the voltage is being decreased in power negotiation, the Source will
set the power supply to operate at the new voltage level before sending
PS_RDY. Relax the threshold before sending Request Message so that it
will not race with Source which begins to adjust the voltage right after
it sends Accept Message (PPS) or tSrcTransition (25~35ms) after it sends
Accept Message (non-PPS).
The real threshold will be set after Sink receives PS_RDY Message.
Fixes: f321a02caebd ("usb: typec: tcpm: Implement enabling Auto Discharge disconnect support")
Cc: stable <stable@vger.kernel.org>
Cc: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Badhri Jagan Sridharan <badhri@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Kyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210616090102.1897674-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/typec/tcpm/tcpm.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -2556,6 +2556,11 @@ static void tcpm_pd_ctrl_request(struct
} else {
next_state = SNK_WAIT_CAPABILITIES;
}
+
+ /* Threshold was relaxed before sending Request. Restore it back. */
+ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_PD,
+ port->pps_data.active,
+ port->supply_voltage);
tcpm_set_state(port, next_state, 0);
break;
case SNK_NEGOTIATE_PPS_CAPABILITIES:
@@ -2569,6 +2574,11 @@ static void tcpm_pd_ctrl_request(struct
port->send_discover)
port->vdm_sm_running = true;
+ /* Threshold was relaxed before sending Request. Restore it back. */
+ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_PD,
+ port->pps_data.active,
+ port->supply_voltage);
+
tcpm_set_state(port, SNK_READY, 0);
break;
case DR_SWAP_SEND:
@@ -3288,6 +3298,12 @@ static int tcpm_pd_send_request(struct t
if (ret < 0)
return ret;
+ /*
+ * Relax the threshold as voltage will be adjusted after Accept Message plus tSrcTransition.
+ * It is safer to modify the threshold here.
+ */
+ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_USB, false, 0);
+
memset(&msg, 0, sizeof(msg));
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
port->pwr_role,
@@ -3385,6 +3401,9 @@ static int tcpm_pd_send_pps_request(stru
if (ret < 0)
return ret;
+ /* Relax the threshold as voltage will be adjusted right after Accept Message. */
+ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_USB, false, 0);
+
memset(&msg, 0, sizeof(msg));
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
port->pwr_role,
@@ -4161,6 +4180,10 @@ static void run_state_machine(struct tcp
port->hard_reset_count = 0;
ret = tcpm_pd_send_request(port);
if (ret < 0) {
+ /* Restore back to the original state */
+ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_PD,
+ port->pps_data.active,
+ port->supply_voltage);
/* Let the Source send capabilities again. */
tcpm_set_state(port, SNK_WAIT_CAPABILITIES, 0);
} else {
@@ -4171,6 +4194,10 @@ static void run_state_machine(struct tcp
case SNK_NEGOTIATE_PPS_CAPABILITIES:
ret = tcpm_pd_send_pps_request(port);
if (ret < 0) {
+ /* Restore back to the original state */
+ tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_PD,
+ port->pps_data.active,
+ port->supply_voltage);
port->pps_status = ret;
/*
* If this was called due to updates to sink
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 027/700] usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (25 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 026/700] usb: typec: tcpm: Relax disconnect threshold during power negotiation Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 028/700] xhci: solve a double free problem while doing s4 Greg Kroah-Hartman
` (678 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Heikki Krogerus, Jing Xiangfeng
From: Jing Xiangfeng <jingxiangfeng@huawei.com>
commit 03026197bb657d784220b040c6173267a0375741 upstream.
typec_register_altmode() misses to call altmode_id_remove() in an error
path. Add the missed function call to fix it.
Fixes: 8a37d87d72f0 ("usb: typec: Bus type for alternate modes")
Cc: stable <stable@vger.kernel.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Link: https://lore.kernel.org/r/20210617073226.47599-1-jingxiangfeng@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/typec/class.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -572,8 +572,10 @@ typec_register_altmode(struct device *pa
int ret;
alt = kzalloc(sizeof(*alt), GFP_KERNEL);
- if (!alt)
+ if (!alt) {
+ altmode_id_remove(parent, id);
return ERR_PTR(-ENOMEM);
+ }
alt->adev.svid = desc->svid;
alt->adev.mode = desc->mode;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 028/700] xhci: solve a double free problem while doing s4
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (26 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 027/700] usb: typec: Add the missed altmode_id_remove() in typec_register_altmode() Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 029/700] mm/page_alloc: fix memory map initialization for descending nodes Greg Kroah-Hartman
` (677 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiantao Zhang, Tao Xue, Mathias Nyman
From: Zhangjiantao (Kirin, nanjing) <water.zhangjiantao@huawei.com>
commit b31d9d6d7abbf6483b871b6370bc31c930d53f54 upstream.
when system is doing s4, the process of xhci_resume may be as below:
1、xhci_mem_cleanup
2、xhci_init->xhci_mem_init->xhci_mem_cleanup(when memory is not enough).
xhci_mem_cleanup will be executed twice when system is out of memory.
xhci->port_caps is freed in xhci_mem_cleanup,but it isn't set to NULL.
It will be freed twice when xhci_mem_cleanup is called the second time.
We got following bug when system resumes from s4:
kernel BUG at mm/slub.c:309!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
CPU: 0 PID: 5929 Tainted: G S W 5.4.96-arm64-desktop #1
pc : __slab_free+0x5c/0x424
lr : kfree+0x30c/0x32c
Call trace:
__slab_free+0x5c/0x424
kfree+0x30c/0x32c
xhci_mem_cleanup+0x394/0x3cc
xhci_mem_init+0x9ac/0x1070
xhci_init+0x8c/0x1d0
xhci_resume+0x1cc/0x5fc
xhci_plat_resume+0x64/0x70
platform_pm_thaw+0x28/0x60
dpm_run_callback+0x54/0x24c
device_resume+0xd0/0x200
async_resume+0x24/0x60
async_run_entry_fn+0x44/0x110
process_one_work+0x1f0/0x490
worker_thread+0x5c/0x450
kthread+0x158/0x160
ret_from_fork+0x10/0x24
Original patch that caused this issue was backported to 4.4 stable,
so this should be backported to 4.4 stabe as well.
Fixes: cf0ee7c60c89 ("xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2")
Cc: stable@vger.kernel.org # v4.4+
Signed-off-by: Jiantao Zhang <water.zhangjiantao@huawei.com>
Signed-off-by: Tao Xue <xuetao09@huawei.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210617150354.1512157-5-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/host/xhci-mem.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1924,6 +1924,7 @@ no_bw:
xhci->hw_ports = NULL;
xhci->rh_bw = NULL;
xhci->ext_caps = NULL;
+ xhci->port_caps = NULL;
xhci->page_size = 0;
xhci->page_shift = 0;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 029/700] mm/page_alloc: fix memory map initialization for descending nodes
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (27 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 028/700] xhci: solve a double free problem while doing s4 Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 030/700] gfs2: Fix underflow in gfs2_page_mkwrite Greg Kroah-Hartman
` (676 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mike Rapoport, Boris Petkov,
Robert Shteynfeld, Baoquan He, Vlastimil Babka,
David Hildenbrand, Andrew Morton, Linus Torvalds
From: Mike Rapoport <rppt@linux.ibm.com>
commit 122e093c1734361dedb64f65c99b93e28e4624f4 upstream.
On systems with memory nodes sorted in descending order, for instance Dell
Precision WorkStation T5500, the struct pages for higher PFNs and
respectively lower nodes, could be overwritten by the initialization of
struct pages corresponding to the holes in the memory sections.
For example for the below memory layout
[ 0.245624] Early memory node ranges
[ 0.248496] node 1: [mem 0x0000000000001000-0x0000000000090fff]
[ 0.251376] node 1: [mem 0x0000000000100000-0x00000000dbdf8fff]
[ 0.254256] node 1: [mem 0x0000000100000000-0x0000001423ffffff]
[ 0.257144] node 0: [mem 0x0000001424000000-0x0000002023ffffff]
the range 0x1424000000 - 0x1428000000 in the beginning of node 0 starts in
the middle of a section and will be considered as a hole during the
initialization of the last section in node 1.
The wrong initialization of the memory map causes panic on boot when
CONFIG_DEBUG_VM is enabled.
Reorder loop order of the memory map initialization so that the outer loop
will always iterate over populated memory regions in the ascending order
and the inner loop will select the zone corresponding to the PFN range.
This way initialization of the struct pages for the memory holes will be
always done for the ranges that are actually not populated.
[akpm@linux-foundation.org: coding style fixes]
Link: https://lkml.kernel.org/r/YNXlMqBbL+tBG7yq@kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213073
Link: https://lkml.kernel.org/r/20210624062305.10940-1-rppt@kernel.org
Fixes: 0740a50b9baa ("mm/page_alloc.c: refactor initialization of struct page for holes in memory layout")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Boris Petkov <bp@alien8.de>
Cc: Robert Shteynfeld <robert.shteynfeld@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Hildenbrand <david@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/mm.h | 1
mm/page_alloc.c | 96 ++++++++++++++++++++++++++++++++---------------------
2 files changed, 59 insertions(+), 38 deletions(-)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2435,7 +2435,6 @@ extern void set_dma_reserve(unsigned lon
extern void memmap_init_range(unsigned long, int, unsigned long,
unsigned long, unsigned long, enum meminit_context,
struct vmem_altmap *, int migratetype);
-extern void memmap_init_zone(struct zone *zone);
extern void setup_per_zone_wmarks(void);
extern int __meminit init_per_zone_wmark_min(void);
extern void mem_init(void);
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6207,7 +6207,7 @@ void __ref memmap_init_zone_device(struc
return;
/*
- * The call to memmap_init_zone should have already taken care
+ * The call to memmap_init should have already taken care
* of the pages reserved for the memmap, so we can just jump to
* the end of that region and start processing the device pages.
*/
@@ -6272,7 +6272,7 @@ static void __meminit zone_init_free_lis
/*
* Only struct pages that correspond to ranges defined by memblock.memory
* are zeroed and initialized by going through __init_single_page() during
- * memmap_init_zone().
+ * memmap_init_zone_range().
*
* But, there could be struct pages that correspond to holes in
* memblock.memory. This can happen because of the following reasons:
@@ -6291,9 +6291,9 @@ static void __meminit zone_init_free_lis
* zone/node above the hole except for the trailing pages in the last
* section that will be appended to the zone/node below.
*/
-static u64 __meminit init_unavailable_range(unsigned long spfn,
- unsigned long epfn,
- int zone, int node)
+static void __init init_unavailable_range(unsigned long spfn,
+ unsigned long epfn,
+ int zone, int node)
{
unsigned long pfn;
u64 pgcnt = 0;
@@ -6309,56 +6309,77 @@ static u64 __meminit init_unavailable_ra
pgcnt++;
}
- return pgcnt;
+ if (pgcnt)
+ pr_info("On node %d, zone %s: %lld pages in unavailable ranges",
+ node, zone_names[zone], pgcnt);
}
#else
-static inline u64 init_unavailable_range(unsigned long spfn, unsigned long epfn,
- int zone, int node)
+static inline void init_unavailable_range(unsigned long spfn,
+ unsigned long epfn,
+ int zone, int node)
{
- return 0;
}
#endif
-void __meminit __weak memmap_init_zone(struct zone *zone)
+static void __init memmap_init_zone_range(struct zone *zone,
+ unsigned long start_pfn,
+ unsigned long end_pfn,
+ unsigned long *hole_pfn)
{
unsigned long zone_start_pfn = zone->zone_start_pfn;
unsigned long zone_end_pfn = zone_start_pfn + zone->spanned_pages;
- int i, nid = zone_to_nid(zone), zone_id = zone_idx(zone);
- static unsigned long hole_pfn;
+ int nid = zone_to_nid(zone), zone_id = zone_idx(zone);
+
+ start_pfn = clamp(start_pfn, zone_start_pfn, zone_end_pfn);
+ end_pfn = clamp(end_pfn, zone_start_pfn, zone_end_pfn);
+
+ if (start_pfn >= end_pfn)
+ return;
+
+ memmap_init_range(end_pfn - start_pfn, nid, zone_id, start_pfn,
+ zone_end_pfn, MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
+
+ if (*hole_pfn < start_pfn)
+ init_unavailable_range(*hole_pfn, start_pfn, zone_id, nid);
+
+ *hole_pfn = end_pfn;
+}
+
+static void __init memmap_init(void)
+{
unsigned long start_pfn, end_pfn;
- u64 pgcnt = 0;
+ unsigned long hole_pfn = 0;
+ int i, j, zone_id, nid;
- for_each_mem_pfn_range(i, nid, &start_pfn, &end_pfn, NULL) {
- start_pfn = clamp(start_pfn, zone_start_pfn, zone_end_pfn);
- end_pfn = clamp(end_pfn, zone_start_pfn, zone_end_pfn);
+ for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid) {
+ struct pglist_data *node = NODE_DATA(nid);
+
+ for (j = 0; j < MAX_NR_ZONES; j++) {
+ struct zone *zone = node->node_zones + j;
+
+ if (!populated_zone(zone))
+ continue;
- if (end_pfn > start_pfn)
- memmap_init_range(end_pfn - start_pfn, nid,
- zone_id, start_pfn, zone_end_pfn,
- MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
-
- if (hole_pfn < start_pfn)
- pgcnt += init_unavailable_range(hole_pfn, start_pfn,
- zone_id, nid);
- hole_pfn = end_pfn;
+ memmap_init_zone_range(zone, start_pfn, end_pfn,
+ &hole_pfn);
+ zone_id = j;
+ }
}
#ifdef CONFIG_SPARSEMEM
/*
- * Initialize the hole in the range [zone_end_pfn, section_end].
- * If zone boundary falls in the middle of a section, this hole
- * will be re-initialized during the call to this function for the
- * higher zone.
+ * Initialize the memory map for hole in the range [memory_end,
+ * section_end].
+ * Append the pages in this hole to the highest zone in the last
+ * node.
+ * The call to init_unavailable_range() is outside the ifdef to
+ * silence the compiler warining about zone_id set but not used;
+ * for FLATMEM it is a nop anyway
*/
- end_pfn = round_up(zone_end_pfn, PAGES_PER_SECTION);
+ end_pfn = round_up(end_pfn, PAGES_PER_SECTION);
if (hole_pfn < end_pfn)
- pgcnt += init_unavailable_range(hole_pfn, end_pfn,
- zone_id, nid);
#endif
-
- if (pgcnt)
- pr_info(" %s zone: %llu pages in unavailable ranges\n",
- zone->name, pgcnt);
+ init_unavailable_range(hole_pfn, end_pfn, zone_id, nid);
}
static int zone_batchsize(struct zone *zone)
@@ -7061,7 +7082,6 @@ static void __init free_area_init_core(s
set_pageblock_order();
setup_usemap(zone);
init_currently_empty_zone(zone, zone->zone_start_pfn, size);
- memmap_init_zone(zone);
}
}
@@ -7587,6 +7607,8 @@ void __init free_area_init(unsigned long
node_set_state(nid, N_MEMORY);
check_for_memory(pgdat, nid);
}
+
+ memmap_init();
}
static int __init cmdline_parse_core(char *p, unsigned long *core,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 030/700] gfs2: Fix underflow in gfs2_page_mkwrite
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (28 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 029/700] mm/page_alloc: fix memory map initialization for descending nodes Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 031/700] gfs2: Fix error handling in init_statfs Greg Kroah-Hartman
` (675 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bob Peterson, Andreas Gruenbacher
From: Andreas Gruenbacher <agruenba@redhat.com>
commit d3c51c55cb9274dd43c156f1f26b5eb4d5f2d58c upstream.
On filesystems with a block size smaller than PAGE_SIZE and non-empty
files smaller then PAGE_SIZE, gfs2_page_mkwrite could end up allocating
excess blocks beyond the end of the file, similar to fallocate. This
doesn't make sense; fix it.
Reported-by: Bob Peterson <rpeterso@redhat.com>
Fixes: 184b4e60853d ("gfs2: Fix end-of-file handling in gfs2_page_mkwrite")
Cc: stable@vger.kernel.org # v5.5+
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/gfs2/file.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -474,8 +474,8 @@ static vm_fault_t gfs2_page_mkwrite(stru
file_update_time(vmf->vma->vm_file);
/* page is wholly or partially inside EOF */
- if (offset > size - PAGE_SIZE)
- length = offset_in_page(size);
+ if (size - offset < PAGE_SIZE)
+ length = size - offset;
else
length = PAGE_SIZE;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 031/700] gfs2: Fix error handling in init_statfs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (29 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 030/700] gfs2: Fix underflow in gfs2_page_mkwrite Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 032/700] ntfs: fix validity check for file name attribute Greg Kroah-Hartman
` (674 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jing Xiangfeng, Andreas Gruenbacher
From: Andreas Gruenbacher <agruenba@redhat.com>
commit 5d49d3508b3c67201bd3e1bf7f4ef049111b7051 upstream.
On an error path, init_statfs calls iput(pn) after pn has already been put.
Fix that by setting pn to NULL after the initial iput.
Fixes: 97fd734ba17e ("gfs2: lookup local statfs inodes prior to journal recovery")
Cc: stable@vger.kernel.org # v5.10+
Reported-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/gfs2/ops_fstype.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -689,6 +689,7 @@ static int init_statfs(struct gfs2_sbd *
}
iput(pn);
+ pn = NULL;
ip = GFS2_I(sdp->sd_sc_inode);
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
&sdp->sd_sc_gh);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 032/700] ntfs: fix validity check for file name attribute
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (30 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 031/700] gfs2: Fix error handling in init_statfs Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 033/700] selftests/lkdtm: Avoid needing explicit sub-shell Greg Kroah-Hartman
` (673 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Desmond Cheong Zhi Xi,
syzbot+213ac8bb98f7f4420840, Anton Altaparmakov, Shuah Khan,
Andrew Morton, Linus Torvalds
From: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
commit d98e4d95411bbde2220a7afa38dcc9c14d71acbe upstream.
When checking the file name attribute, we want to ensure that it fits
within the bounds of ATTR_RECORD. To do this, we should check that (attr
record + file name offset + file name length) < (attr record + attr record
length).
However, the original check did not include the file name offset in the
calculation. This means that corrupted on-disk metadata might not caught
by the incorrect file name check, and lead to an invalid memory access.
An example can be seen in the crash report of a memory corruption error
found by Syzbot:
https://syzkaller.appspot.com/bug?id=a1a1e379b225812688566745c3e2f7242bffc246
Adding the file name offset to the validity check fixes this error and
passes the Syzbot reproducer test.
Link: https://lkml.kernel.org/r/20210614050540.289494-1-desmondcheongzx@gmail.com
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Reported-by: syzbot+213ac8bb98f7f4420840@syzkaller.appspotmail.com
Tested-by: syzbot+213ac8bb98f7f4420840@syzkaller.appspotmail.com
Acked-by: Anton Altaparmakov <anton@tuxera.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ntfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -477,7 +477,7 @@ err_corrupt_attr:
}
file_name_attr = (FILE_NAME_ATTR*)((u8*)attr +
le16_to_cpu(attr->data.resident.value_offset));
- p2 = (u8*)attr + le32_to_cpu(attr->data.resident.value_length);
+ p2 = (u8 *)file_name_attr + le32_to_cpu(attr->data.resident.value_length);
if (p2 < (u8*)attr || p2 > p)
goto err_corrupt_attr;
/* This attribute is ok, but is it in the $Extend directory? */
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 033/700] selftests/lkdtm: Avoid needing explicit sub-shell
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (31 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 032/700] ntfs: fix validity check for file name attribute Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 034/700] copy_page_to_iter(): fix ITER_DISCARD case Greg Kroah-Hartman
` (672 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Guillaume Tucker, David Laight, Kees Cook
From: Kees Cook <keescook@chromium.org>
commit 04831e892b41618914b2123ae3b4fa77252e8656 upstream.
Some environments do not set $SHELL when running tests. There's no
need to use $SHELL here anyway, since "cat" can be used to receive any
delivered signals from the kernel. Additionally avoid using bash-isms
in the command, and record stderr for posterity.
Fixes: 46d1a0f03d66 ("selftests/lkdtm: Add tests for LKDTM targets")
Cc: stable@vger.kernel.org
Suggested-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Suggested-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210623203936.3151093-2-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/testing/selftests/lkdtm/run.sh | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
--- a/tools/testing/selftests/lkdtm/run.sh
+++ b/tools/testing/selftests/lkdtm/run.sh
@@ -76,10 +76,14 @@ fi
# Save existing dmesg so we can detect new content below
dmesg > "$DMESG"
-# Most shells yell about signals and we're expecting the "cat" process
-# to usually be killed by the kernel. So we have to run it in a sub-shell
-# and silence errors.
-($SHELL -c 'cat <(echo '"$test"') >'"$TRIGGER" 2>/dev/null) || true
+# Since the kernel is likely killing the process writing to the trigger
+# file, it must not be the script's shell itself. i.e. we cannot do:
+# echo "$test" >"$TRIGGER"
+# Instead, use "cat" to take the signal. Since the shell will yell about
+# the signal that killed the subprocess, we must ignore the failure and
+# continue. However we don't silence stderr since there might be other
+# useful details reported there in the case of other unexpected conditions.
+echo "$test" | cat >"$TRIGGER" || true
# Record and dump the results
dmesg | comm --nocheck-order -13 "$DMESG" - > "$LOG" || true
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 034/700] copy_page_to_iter(): fix ITER_DISCARD case
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (32 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 033/700] selftests/lkdtm: Avoid needing explicit sub-shell Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 035/700] [xarray] iov_iter_fault_in_readable() should do nothing in xarray case Greg Kroah-Hartman
` (671 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Al Viro
From: Al Viro <viro@zeniv.linux.org.uk>
commit a506abc7b644d71966a75337d5a534f531b3cdc4 upstream.
we need to advance the iterator...
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
lib/iov_iter.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -906,9 +906,12 @@ size_t copy_page_to_iter(struct page *pa
size_t wanted = copy_to_iter(kaddr + offset, bytes, i);
kunmap_atomic(kaddr);
return wanted;
- } else if (unlikely(iov_iter_is_discard(i)))
+ } else if (unlikely(iov_iter_is_discard(i))) {
+ if (unlikely(i->count < bytes))
+ bytes = i->count;
+ i->count -= bytes;
return bytes;
- else if (likely(!iov_iter_is_pipe(i)))
+ } else if (likely(!iov_iter_is_pipe(i)))
return copy_page_to_iter_iovec(page, offset, bytes, i);
else
return copy_page_to_iter_pipe(page, offset, bytes, i);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 035/700] [xarray] iov_iter_fault_in_readable() should do nothing in xarray case
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (33 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 034/700] copy_page_to_iter(): fix ITER_DISCARD case Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:01 ` [PATCH 5.12 036/700] Input: elants_i2c - fix NULL dereference at probing Greg Kroah-Hartman
` (670 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Al Viro
From: Al Viro <viro@zeniv.linux.org.uk>
commit 0e8f0d67401589a141950856902c7d0ec8d9c985 upstream.
... and actually should just check it's given an iovec-backed iterator
in the first place.
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
lib/iov_iter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -432,7 +432,7 @@ int iov_iter_fault_in_readable(struct io
int err;
struct iovec v;
- if (!(i->type & (ITER_BVEC|ITER_KVEC))) {
+ if (iter_is_iovec(i)) {
iterate_iovec(i, bytes, v, iov, skip, ({
err = fault_in_pages_readable(v.iov_base, v.iov_len);
if (unlikely(err))
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 036/700] Input: elants_i2c - fix NULL dereference at probing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (34 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 035/700] [xarray] iov_iter_fault_in_readable() should do nothing in xarray case Greg Kroah-Hartman
@ 2021-07-12 6:01 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 037/700] Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl Greg Kroah-Hartman
` (669 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:01 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Takashi Iwai, Dmitry Torokhov
From: Takashi Iwai <tiwai@suse.de>
commit b9c0ebb867d67cc4e9e1a7a2abf0ac9a2cc02051 upstream.
The recent change in elants_i2c driver to support more chips
introduced a regression leading to Oops at probing. The driver reads
id->driver_data, but the id may be NULL depending on the device type
the driver gets bound.
Replace the driver data extraction with the device_get_match_data()
helper, and define the driver data in OF table, too.
Fixes: 9517b95bdc46 ("Input: elants_i2c - add support for eKTF3624")
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1186454
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210528071024.26450-1-tiwai@suse.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/touchscreen/elants_i2c.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -1396,7 +1396,7 @@ static int elants_i2c_probe(struct i2c_c
init_completion(&ts->cmd_done);
ts->client = client;
- ts->chip_id = (enum elants_chip_id)id->driver_data;
+ ts->chip_id = (enum elants_chip_id)(uintptr_t)device_get_match_data(&client->dev);
i2c_set_clientdata(client, ts);
ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");
@@ -1636,8 +1636,8 @@ MODULE_DEVICE_TABLE(acpi, elants_acpi_id
#ifdef CONFIG_OF
static const struct of_device_id elants_of_match[] = {
- { .compatible = "elan,ekth3500" },
- { .compatible = "elan,ektf3624" },
+ { .compatible = "elan,ekth3500", .data = (void *)EKTH3500 },
+ { .compatible = "elan,ektf3624", .data = (void *)EKTF3624 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, elants_of_match);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 037/700] Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (35 preceding siblings ...)
2021-07-12 6:01 ` [PATCH 5.12 036/700] Input: elants_i2c - fix NULL dereference at probing Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 038/700] crypto: nx - Fix memcpy() over-reading in nonce Greg Kroah-Hartman
` (668 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Murray McAllister, Linus Torvalds,
Alexander Larkin, Dmitry Torokhov
From: Alexander Larkin <avlarkin82@gmail.com>
commit f8f84af5da9ee04ef1d271528656dac42a090d00 upstream.
Even though we validate user-provided inputs we then traverse past
validated data when applying the new map. The issue was originally
discovered by Murray McAllister with this simple POC (if the following
is executed by an unprivileged user it will instantly panic the system):
int main(void) {
int fd, ret;
unsigned int buffer[10000];
fd = open("/dev/input/js0", O_RDONLY);
if (fd == -1)
printf("Error opening file\n");
ret = ioctl(fd, JSIOCSBTNMAP & ~IOCSIZE_MASK, &buffer);
printf("%d\n", ret);
}
The solution is to traverse internal buffer which is guaranteed to only
contain valid date when constructing the map.
Fixes: 182d679b2298 ("Input: joydev - prevent potential read overflow in ioctl")
Fixes: 999b874f4aa3 ("Input: joydev - validate axis/button maps before clobbering current ones")
Reported-by: Murray McAllister <murray.mcallister@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Alexander Larkin <avlarkin82@gmail.com>
Link: https://lore.kernel.org/r/20210620120030.1513655-1-avlarkin82@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/joydev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -499,7 +499,7 @@ static int joydev_handle_JSIOCSBTNMAP(st
memcpy(joydev->keypam, keypam, len);
for (i = 0; i < joydev->nkey; i++)
- joydev->keymap[keypam[i] - BTN_MISC] = i;
+ joydev->keymap[joydev->keypam[i] - BTN_MISC] = i;
out:
kfree(keypam);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 038/700] crypto: nx - Fix memcpy() over-reading in nonce
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (36 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 037/700] Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 039/700] crypto: ccp - Annotate SEV Firmware file names Greg Kroah-Hartman
` (667 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Kees Cook, Herbert Xu
From: Kees Cook <keescook@chromium.org>
commit 74c66120fda6596ad57f41e1607b3a5d51ca143d upstream.
Fix typo in memcpy() where size should be CTR_RFC3686_NONCE_SIZE.
Fixes: 030f4e968741 ("crypto: nx - Fix reentrancy bugs")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/crypto/nx/nx-aes-ctr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/crypto/nx/nx-aes-ctr.c
+++ b/drivers/crypto/nx/nx-aes-ctr.c
@@ -118,7 +118,7 @@ static int ctr3686_aes_nx_crypt(struct s
struct nx_crypto_ctx *nx_ctx = crypto_skcipher_ctx(tfm);
u8 iv[16];
- memcpy(iv, nx_ctx->priv.ctr.nonce, CTR_RFC3686_IV_SIZE);
+ memcpy(iv, nx_ctx->priv.ctr.nonce, CTR_RFC3686_NONCE_SIZE);
memcpy(iv + CTR_RFC3686_NONCE_SIZE, req->iv, CTR_RFC3686_IV_SIZE);
iv[12] = iv[13] = iv[14] = 0;
iv[15] = 1;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 039/700] crypto: ccp - Annotate SEV Firmware file names
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (37 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 038/700] crypto: nx - Fix memcpy() over-reading in nonce Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 040/700] arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tom Lendacky, Joerg Roedel, Herbert Xu
From: Joerg Roedel <jroedel@suse.de>
commit c8671c7dc7d51125ab9f651697866bf4a9132277 upstream.
Annotate the firmware files CCP might need using MODULE_FIRMWARE().
This will get them included into an initrd when CCP is also included
there. Otherwise the CCP module will not find its firmware when loaded
before the root-fs is mounted.
This can cause problems when the pre-loaded SEV firmware is too old to
support current SEV and SEV-ES virtualization features.
Fixes: e93720606efd ("crypto: ccp - Allow SEV firmware to be chosen based on Family and Model")
Cc: stable@vger.kernel.org # v4.20+
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/crypto/ccp/sev-dev.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -42,6 +42,10 @@ static int psp_probe_timeout = 5;
module_param(psp_probe_timeout, int, 0644);
MODULE_PARM_DESC(psp_probe_timeout, " default timeout value, in seconds, during PSP device probe");
+MODULE_FIRMWARE("amd/amd_sev_fam17h_model0xh.sbin"); /* 1st gen EPYC */
+MODULE_FIRMWARE("amd/amd_sev_fam17h_model3xh.sbin"); /* 2nd gen EPYC */
+MODULE_FIRMWARE("amd/amd_sev_fam19h_model0xh.sbin"); /* 3rd gen EPYC */
+
static bool psp_dead;
static int psp_timeout;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 040/700] arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (38 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 039/700] crypto: ccp - Annotate SEV Firmware file names Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 041/700] ARM: dts: ux500: Fix LED probing Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yang Jihong, Mark Rutland, Will Deacon
From: Yang Jihong <yangjihong1@huawei.com>
commit fdbef8c4e68ad423416aa6cc93d1616d6f8ac5b3 upstream.
Commit 3a95200d3f89 ("arm_pmu: Change API to support 64bit counter values")
changes the input "value" type from 32-bit to 64-bit, which introduces the
following problem: ARMv7 PMU counters is 32-bit width, in big-endian mode,
write counter uses high 32-bit, which writes an incorrect value.
Before:
Performance counter stats for 'ls':
2.22 msec task-clock # 0.675 CPUs utilized
0 context-switches # 0.000 K/sec
0 cpu-migrations # 0.000 K/sec
49 page-faults # 0.022 M/sec
2150476593 cycles # 966.663 GHz
2148588788 instructions # 1.00 insn per cycle
2147745484 branches # 965435.074 M/sec
2147508540 branch-misses # 99.99% of all branches
None of the above hw event counters are correct.
Solution:
"value" forcibly converted to 32-bit type before being written to PMU register.
After:
Performance counter stats for 'ls':
2.09 msec task-clock # 0.681 CPUs utilized
0 context-switches # 0.000 K/sec
0 cpu-migrations # 0.000 K/sec
46 page-faults # 0.022 M/sec
2807301 cycles # 1.344 GHz
1060159 instructions # 0.38 insn per cycle
250496 branches # 119.914 M/sec
23192 branch-misses # 9.26% of all branches
Fixes: 3a95200d3f89 ("arm_pmu: Change API to support 64bit counter values")
Cc: <stable@vger.kernel.org>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210430012659.232110-1-yangjihong1@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/kernel/perf_event_v7.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -773,10 +773,10 @@ static inline void armv7pmu_write_counte
pr_err("CPU%u writing wrong counter %d\n",
smp_processor_id(), idx);
} else if (idx == ARMV7_IDX_CYCLE_COUNTER) {
- asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (value));
+ asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" ((u32)value));
} else {
armv7_pmnc_select_counter(idx);
- asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (value));
+ asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" ((u32)value));
}
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 041/700] ARM: dts: ux500: Fix LED probing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (39 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 040/700] arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 042/700] ARM: dts: at91: sama5d4: fix pinctrl muxing Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Murphy, Linus Walleij, Olof Johansson
From: Linus Walleij <linus.walleij@linaro.org>
commit 7749510c459c10c431d746a4749e7c9cf2899156 upstream.
The Ux500 HREF LEDs have not been probing properly for a
while as this was introduce:
ret = of_property_read_u32(np, "color", &led_color);
if (ret)
return ret;
Since the device tree did not define the new invented color
attribute, probe was failing.
Define color attributes for the LEDs so they work again.
Link: https://lore.kernel.org/r/20210613123356.880933-1-linus.walleij@linaro.org
Fixes: 92a81562e695 ("leds: lp55xx: Add multicolor framework support to lp55xx")
Cc: stable@vger.kernel.org
Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/boot/dts/ste-href.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -4,6 +4,7 @@
*/
#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/leds/common.h>
#include "ste-href-family-pinctrl.dtsi"
/ {
@@ -64,17 +65,20 @@
reg = <0>;
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ color = <LED_COLOR_ID_BLUE>;
linux,default-trigger = "heartbeat";
};
chan@1 {
reg = <1>;
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ color = <LED_COLOR_ID_BLUE>;
};
chan@2 {
reg = <2>;
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ color = <LED_COLOR_ID_BLUE>;
};
};
lp5521@34 {
@@ -88,16 +92,19 @@
reg = <0>;
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ color = <LED_COLOR_ID_BLUE>;
};
chan@1 {
reg = <1>;
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ color = <LED_COLOR_ID_BLUE>;
};
chan@2 {
reg = <2>;
led-cur = /bits/ 8 <0x2f>;
max-cur = /bits/ 8 <0x5f>;
+ color = <LED_COLOR_ID_BLUE>;
};
};
bh1780@29 {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 042/700] ARM: dts: at91: sama5d4: fix pinctrl muxing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (40 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 041/700] ARM: dts: ux500: Fix LED probing Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 043/700] btrfs: zoned: print message when zone sanity check type fails Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ludovic Desroches, Claudiu Beznea,
Nicolas Ferre
From: Ludovic Desroches <ludovic.desroches@microchip.com>
commit 253adffb0e98eaf6da2e7cf73ae68695e21f2f3c upstream.
Fix pinctrl muxing, PD28, PD29 and PD31 can be muxed to peripheral A. It
allows to use SCK0, SCK1 and SPI0_NPCS2 signals.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Fixes: 679f8d92bb01 ("ARM: at91/dt: sama5d4: add pioD pin mux mask and enable pioD")
Cc: stable@vger.kernel.org # v4.4+
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20191025084210.14726-1-ludovic.desroches@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/boot/dts/sama5d4.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/boot/dts/sama5d4.dtsi
+++ b/arch/arm/boot/dts/sama5d4.dtsi
@@ -787,7 +787,7 @@
0xffffffff 0x3ffcfe7c 0x1c010101 /* pioA */
0x7fffffff 0xfffccc3a 0x3f00cc3a /* pioB */
0xffffffff 0x3ff83fff 0xff00ffff /* pioC */
- 0x0003ff00 0x8002a800 0x00000000 /* pioD */
+ 0xb003ff00 0x8002a800 0x00000000 /* pioD */
0xffffffff 0x7fffffff 0x76fff1bf /* pioE */
>;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 043/700] btrfs: zoned: print message when zone sanity check type fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (41 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 042/700] ARM: dts: at91: sama5d4: fix pinctrl muxing Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 044/700] btrfs: zoned: bail out if we cant read a reliable write pointer Greg Kroah-Hartman
` (662 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Naohiro Aota, David Sterba
From: Naohiro Aota <naohiro.aota@wdc.com>
commit 47cdfb5e1dd60422ec2cbc53b667f73ff9a411dc upstream.
This extends patch 784daf2b9628 ("btrfs: zoned: sanity check zone
type"), the message was supposed to be there but was lost during merge.
We want to make the error noticeable so add it.
Fixes: 784daf2b9628 ("btrfs: zoned: sanity check zone type")
CC: stable@vger.kernel.org # 5.12+
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/zoned.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1140,6 +1140,10 @@ int btrfs_load_block_group_zone_info(str
}
if (zone.type == BLK_ZONE_TYPE_CONVENTIONAL) {
+ btrfs_err_in_rcu(fs_info,
+ "zoned: unexpected conventional zone %llu on device %s (devid %llu)",
+ zone.start << SECTOR_SHIFT,
+ rcu_str_deref(device->name), device->devid);
ret = -EIO;
goto out;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 044/700] btrfs: zoned: bail out if we cant read a reliable write pointer
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (42 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 043/700] btrfs: zoned: print message when zone sanity check type fails Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 045/700] btrfs: send: fix invalid path for unlink operations after parent orphanization Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Johannes Thumshirn, David Sterba
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
commit 06e1e7f4223c98965fb721b4b1e12083cfbe777e upstream.
If we can't read a reliable write pointer from a sequential zone fail
creating the block group with an I/O error.
Also if the read write pointer is beyond the end of the respective zone,
fail the creation of the block group on this zone with an I/O error.
While this could also happen in real world scenarios with misbehaving
drives, this issue addresses a problem uncovered by fstests' test case
generic/475.
CC: stable@vger.kernel.org # 5.12+
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/zoned.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1204,6 +1204,13 @@ int btrfs_load_block_group_zone_info(str
switch (map->type & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
case 0: /* single */
+ if (alloc_offsets[0] == WP_MISSING_DEV) {
+ btrfs_err(fs_info,
+ "zoned: cannot recover write pointer for zone %llu",
+ physical);
+ ret = -EIO;
+ goto out;
+ }
cache->alloc_offset = alloc_offsets[0];
break;
case BTRFS_BLOCK_GROUP_DUP:
@@ -1221,6 +1228,13 @@ int btrfs_load_block_group_zone_info(str
}
out:
+ if (cache->alloc_offset > fs_info->zone_size) {
+ btrfs_err(fs_info,
+ "zoned: invalid write pointer %llu in block group %llu",
+ cache->alloc_offset, cache->start);
+ ret = -EIO;
+ }
+
/* An extent is allocated after the write pointer */
if (!ret && num_conventional && last_alloc > cache->alloc_offset) {
btrfs_err(fs_info,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 045/700] btrfs: send: fix invalid path for unlink operations after parent orphanization
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (43 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 044/700] btrfs: zoned: bail out if we cant read a reliable write pointer Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 046/700] btrfs: compression: dont try to compress if we dont have enough pages Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Filipe Manana, David Sterba
From: Filipe Manana <fdmanana@suse.com>
commit d8ac76cdd1755b21e8c008c28d0b7251c0b14986 upstream.
During an incremental send operation, when processing the new references
for the current inode, we might send an unlink operation for another inode
that has a conflicting path and has more than one hard link. However this
path was computed and cached before we processed previous new references
for the current inode. We may have orphanized a directory of that path
while processing a previous new reference, in which case the path will
be invalid and cause the receiver process to fail.
The following reproducer triggers the problem and explains how/why it
happens in its comments:
$ cat test-send-unlink.sh
#!/bin/bash
DEV=/dev/sdi
MNT=/mnt/sdi
mkfs.btrfs -f $DEV >/dev/null
mount $DEV $MNT
# Create our test files and directory. Inode 259 (file3) has two hard
# links.
touch $MNT/file1
touch $MNT/file2
touch $MNT/file3
mkdir $MNT/A
ln $MNT/file3 $MNT/A/hard_link
# Filesystem looks like:
#
# . (ino 256)
# |----- file1 (ino 257)
# |----- file2 (ino 258)
# |----- file3 (ino 259)
# |----- A/ (ino 260)
# |---- hard_link (ino 259)
#
# Now create the base snapshot, which is going to be the parent snapshot
# for a later incremental send.
btrfs subvolume snapshot -r $MNT $MNT/snap1
btrfs send -f /tmp/snap1.send $MNT/snap1
# Move inode 257 into directory inode 260. This results in computing the
# path for inode 260 as "/A" and caching it.
mv $MNT/file1 $MNT/A/file1
# Move inode 258 (file2) into directory inode 260, with a name of
# "hard_link", moving first inode 259 away since it currently has that
# location and name.
mv $MNT/A/hard_link $MNT/tmp
mv $MNT/file2 $MNT/A/hard_link
# Now rename inode 260 to something else (B for example) and then create
# a hard link for inode 258 that has the old name and location of inode
# 260 ("/A").
mv $MNT/A $MNT/B
ln $MNT/B/hard_link $MNT/A
# Filesystem now looks like:
#
# . (ino 256)
# |----- tmp (ino 259)
# |----- file3 (ino 259)
# |----- B/ (ino 260)
# | |---- file1 (ino 257)
# | |---- hard_link (ino 258)
# |
# |----- A (ino 258)
# Create another snapshot of our subvolume and use it for an incremental
# send.
btrfs subvolume snapshot -r $MNT $MNT/snap2
btrfs send -f /tmp/snap2.send -p $MNT/snap1 $MNT/snap2
# Now unmount the filesystem, create a new one, mount it and try to
# apply both send streams to recreate both snapshots.
umount $DEV
mkfs.btrfs -f $DEV >/dev/null
mount $DEV $MNT
# First add the first snapshot to the new filesystem by applying the
# first send stream.
btrfs receive -f /tmp/snap1.send $MNT
# The incremental receive operation below used to fail with the
# following error:
#
# ERROR: unlink A/hard_link failed: No such file or directory
#
# This is because when send is processing inode 257, it generates the
# path for inode 260 as "/A", since that inode is its parent in the send
# snapshot, and caches that path.
#
# Later when processing inode 258, it first processes its new reference
# that has the path of "/A", which results in orphanizing inode 260
# because there is a a path collision. This results in issuing a rename
# operation from "/A" to "/o260-6-0".
#
# Finally when processing the new reference "B/hard_link" for inode 258,
# it notices that it collides with inode 259 (not yet processed, because
# it has a higher inode number), since that inode has the name
# "hard_link" under the directory inode 260. It also checks that inode
# 259 has two hardlinks, so it decides to issue a unlink operation for
# the name "hard_link" for inode 259. However the path passed to the
# unlink operation is "/A/hard_link", which is incorrect since currently
# "/A" does not exists, due to the orphanization of inode 260 mentioned
# before. The path is incorrect because it was computed and cached
# before the orphanization. This results in the receiver to fail with
# the above error.
btrfs receive -f /tmp/snap2.send $MNT
umount $MNT
When running the test, it fails like this:
$ ./test-send-unlink.sh
Create a readonly snapshot of '/mnt/sdi' in '/mnt/sdi/snap1'
At subvol /mnt/sdi/snap1
Create a readonly snapshot of '/mnt/sdi' in '/mnt/sdi/snap2'
At subvol /mnt/sdi/snap2
At subvol snap1
At snapshot snap2
ERROR: unlink A/hard_link failed: No such file or directory
Fix this by recomputing a path before issuing an unlink operation when
processing the new references for the current inode if we previously
have orphanized a directory.
A test case for fstests will follow soon.
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/send.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4064,6 +4064,17 @@ static int process_recorded_refs(struct
if (ret < 0)
goto out;
} else {
+ /*
+ * If we previously orphanized a directory that
+ * collided with a new reference that we already
+ * processed, recompute the current path because
+ * that directory may be part of the path.
+ */
+ if (orphanized_dir) {
+ ret = refresh_ref_path(sctx, cur);
+ if (ret < 0)
+ goto out;
+ }
ret = send_unlink(sctx, cur->full_path);
if (ret < 0)
goto out;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 046/700] btrfs: compression: dont try to compress if we dont have enough pages
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (44 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 045/700] btrfs: send: fix invalid path for unlink operations after parent orphanization Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 047/700] btrfs: fix unbalanced unlock in qgroup_account_snapshot() Greg Kroah-Hartman
` (659 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, David Sterba
From: David Sterba <dsterba@suse.com>
commit f2165627319ffd33a6217275e5690b1ab5c45763 upstream.
The early check if we should attempt compression does not take into
account the number of input pages. It can happen that there's only one
page, eg. a tail page after some ranges of the BTRFS_MAX_UNCOMPRESSED
have been processed, or an isolated page that won't be converted to an
inline extent.
The single page would be compressed but a later check would drop it
again because the result size must be at least one block shorter than
the input. That can never work with just one page.
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -598,7 +598,7 @@ again:
* inode has not been flagged as nocompress. This flag can
* change at any time if we discover bad compression ratios.
*/
- if (inode_need_compress(BTRFS_I(inode), start, end)) {
+ if (nr_pages > 1 && inode_need_compress(BTRFS_I(inode), start, end)) {
WARN_ON(pages);
pages = kcalloc(nr_pages, sizeof(struct page *), GFP_NOFS);
if (!pages) {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 047/700] btrfs: fix unbalanced unlock in qgroup_account_snapshot()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (45 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 046/700] btrfs: compression: dont try to compress if we dont have enough pages Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 048/700] btrfs: clear defrag status of a root if starting transaction fails Greg Kroah-Hartman
` (658 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Qu Wenruo, Naohiro Aota, David Sterba
From: Naohiro Aota <naohiro.aota@wdc.com>
commit 44365827cccc1441d4187509257e5276af133a49 upstream.
qgroup_account_snapshot() is trying to unlock the not taken
tree_log_mutex in a error path. Since ret != 0 in this case, we can
just return from here.
Fixes: 2a4d84c11a87 ("btrfs: move delayed ref flushing for qgroup into qgroup helper")
CC: stable@vger.kernel.org # 5.12+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/transaction.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1461,7 +1461,7 @@ static int qgroup_account_snapshot(struc
ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
if (ret) {
btrfs_abort_transaction(trans, ret);
- goto out;
+ return ret;
}
/*
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 048/700] btrfs: clear defrag status of a root if starting transaction fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (46 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 047/700] btrfs: fix unbalanced unlock in qgroup_account_snapshot() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 049/700] ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle Greg Kroah-Hartman
` (657 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Qu Wenruo, Anand Jain, David Sterba
From: David Sterba <dsterba@suse.com>
commit 6819703f5a365c95488b07066a8744841bf14231 upstream.
The defrag loop processes leaves in batches and starting transaction for
each. The whole defragmentation on a given root is protected by a bit
but in case the transaction fails, the bit is not cleared
In case the transaction fails the bit would prevent starting
defragmentation again, so make sure it's cleared.
CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/transaction.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1393,8 +1393,10 @@ int btrfs_defrag_root(struct btrfs_root
while (1) {
trans = btrfs_start_transaction(root, 0);
- if (IS_ERR(trans))
- return PTR_ERR(trans);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ break;
+ }
ret = btrfs_defrag_leaves(trans, root);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 049/700] ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (47 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 048/700] btrfs: clear defrag status of a root if starting transaction fails Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 050/700] ext4: fix kernel infoleak via ext4_extent_header Greg Kroah-Hartman
` (656 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, stable, Zhang Yi, Jan Kara, Theodore Tso
From: Zhang Yi <yi.zhang@huawei.com>
commit b9a037b7f3c401d3c63e0423e56aef606b1ffaaf upstream.
In ext4_orphan_cleanup(), if ext4_truncate() failed to get a transaction
handle, it didn't remove the inode from the in-core orphan list, which
may probably trigger below error dump in ext4_destroy_inode() during the
final iput() and could lead to memory corruption on the later orphan
list changes.
EXT4-fs (sda): Inode 6291467 (00000000b8247c67): orphan list check failed!
00000000b8247c67: 0001f30a 00000004 00000000 00000023 ............#...
00000000e24cde71: 00000006 014082a3 00000000 00000000 ......@.........
0000000072c6a5ee: 00000000 00000000 00000000 00000000 ................
...
This patch fix this by cleanup in-core orphan list manually if
ext4_truncate() return error.
Cc: stable@kernel.org
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210507071904.160808-1-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/super.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3084,8 +3084,15 @@ static void ext4_orphan_cleanup(struct s
inode_lock(inode);
truncate_inode_pages(inode->i_mapping, inode->i_size);
ret = ext4_truncate(inode);
- if (ret)
+ if (ret) {
+ /*
+ * We need to clean up the in-core orphan list
+ * manually if ext4_truncate() failed to get a
+ * transaction handle.
+ */
+ ext4_orphan_del(NULL, inode);
ext4_std_error(inode->i_sb, ret);
+ }
inode_unlock(inode);
nr_truncates++;
} else {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 050/700] ext4: fix kernel infoleak via ext4_extent_header
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (48 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 049/700] ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 051/700] ext4: fix overflow in ext4_iomap_alloc() Greg Kroah-Hartman
` (655 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, stable, syzbot+2dcfeaf8cb49b05e8f1a,
Anirudh Rayabharam, Theodore Tso
From: Anirudh Rayabharam <mail@anirudhrb.com>
commit ce3aba43599f0b50adbebff133df8d08a3d5fffe upstream.
Initialize eh_generation of struct ext4_extent_header to prevent leaking
info to userspace. Fixes KMSAN kernel-infoleak bug reported by syzbot at:
http://syzkaller.appspot.com/bug?id=78e9ad0e6952a3ca16e8234724b2fa92d041b9b8
Cc: stable@kernel.org
Reported-by: syzbot+2dcfeaf8cb49b05e8f1a@syzkaller.appspotmail.com
Fixes: a86c61812637 ("[PATCH] ext3: add extent map support")
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Link: https://lore.kernel.org/r/20210506185655.7118-1-mail@anirudhrb.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/extents.c | 3 +++
1 file changed, 3 insertions(+)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -825,6 +825,7 @@ void ext4_ext_tree_init(handle_t *handle
eh->eh_entries = 0;
eh->eh_magic = EXT4_EXT_MAGIC;
eh->eh_max = cpu_to_le16(ext4_ext_space_root(inode, 0));
+ eh->eh_generation = 0;
ext4_mark_inode_dirty(handle, inode);
}
@@ -1090,6 +1091,7 @@ static int ext4_ext_split(handle_t *hand
neh->eh_max = cpu_to_le16(ext4_ext_space_block(inode, 0));
neh->eh_magic = EXT4_EXT_MAGIC;
neh->eh_depth = 0;
+ neh->eh_generation = 0;
/* move remainder of path[depth] to the new leaf */
if (unlikely(path[depth].p_hdr->eh_entries !=
@@ -1167,6 +1169,7 @@ static int ext4_ext_split(handle_t *hand
neh->eh_magic = EXT4_EXT_MAGIC;
neh->eh_max = cpu_to_le16(ext4_ext_space_block_idx(inode, 0));
neh->eh_depth = cpu_to_le16(depth - i);
+ neh->eh_generation = 0;
fidx = EXT_FIRST_INDEX(neh);
fidx->ei_block = border;
ext4_idx_store_pblock(fidx, oldblock);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 051/700] ext4: fix overflow in ext4_iomap_alloc()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (49 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 050/700] ext4: fix kernel infoleak via ext4_extent_header Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 052/700] ext4: return error code when ext4_fill_flex_info() fails Greg Kroah-Hartman
` (654 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, stable, Jan Kara, Theodore Tso
From: Jan Kara <jack@suse.cz>
commit d0b040f5f2557b2f507c01e88ad8cff424fdc6a9 upstream.
A code in iomap alloc may overflow block number when converting it to
byte offset. Luckily this is mostly harmless as we will just use more
expensive method of writing using unwritten extents even though we are
writing beyond i_size.
Cc: stable@kernel.org
Fixes: 378f32bab371 ("ext4: introduce direct I/O write using iomap infrastructure")
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210412102333.2676-4-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3420,7 +3420,7 @@ retry:
* i_disksize out to i_size. This could be beyond where direct I/O is
* happening and thus expose allocated blocks to direct I/O reads.
*/
- else if ((map->m_lblk * (1 << blkbits)) >= i_size_read(inode))
+ else if (((loff_t)map->m_lblk << blkbits) >= i_size_read(inode))
m_flags = EXT4_GET_BLOCKS_CREATE;
else if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
m_flags = EXT4_GET_BLOCKS_IO_CREATE_EXT;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 052/700] ext4: return error code when ext4_fill_flex_info() fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (50 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 051/700] ext4: fix overflow in ext4_iomap_alloc() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 053/700] ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit Greg Kroah-Hartman
` (653 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang, Theodore Tso
From: Yang Yingliang <yangyingliang@huawei.com>
commit 8f6840c4fd1e7bd715e403074fb161c1a04cda73 upstream.
After commit c89128a00838 ("ext4: handle errors on
ext4_commit_super"), 'ret' may be set to 0 before calling
ext4_fill_flex_info(), if ext4_fill_flex_info() fails ext4_mount()
doesn't return error code, it makes 'root' is null which causes crash
in legacy_get_tree().
Fixes: c89128a00838 ("ext4: handle errors on ext4_commit_super")
Reported-by: Hulk Robot <hulkci@huawei.com>
Cc: <stable@vger.kernel.org> # v4.18+
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210510111051.55650-1-yangyingliang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5039,6 +5039,7 @@ no_journal:
ext4_msg(sb, KERN_ERR,
"unable to initialize "
"flex_bg meta info!");
+ ret = -ENOMEM;
goto failed_mount6;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 053/700] ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (51 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 052/700] ext4: return error code when ext4_fill_flex_info() fails Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 054/700] ext4: remove check for zero nr_to_scan in ext4_es_scan() Greg Kroah-Hartman
` (652 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Zhang Yi, Jan Kara, Theodore Tso
From: Zhang Yi <yi.zhang@huawei.com>
commit 4fb7c70a889ead2e91e184895ac6e5354b759135 upstream.
The cache_cnt parameter of tracepoint ext4_es_shrink_exit means the
remaining cache count after shrink, but now it is the cache count before
shrink, fix it by read sbi->s_extent_cache_cnt again.
Fixes: 1ab6c4997e04 ("fs: convert fs shrinkers to new scan/count API")
Cc: stable@vger.kernel.org # 3.12+
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210522103045.690103-3-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/extents_status.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1579,6 +1579,7 @@ static unsigned long ext4_es_scan(struct
nr_shrunk = __es_shrink(sbi, nr_to_scan, NULL);
+ ret = percpu_counter_read_positive(&sbi->s_es_stats.es_stats_shk_cnt);
trace_ext4_es_shrink_scan_exit(sbi->s_sb, nr_shrunk, ret);
return nr_shrunk;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 054/700] ext4: remove check for zero nr_to_scan in ext4_es_scan()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (52 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 053/700] ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 055/700] ext4: fix avefreec in find_group_orlov Greg Kroah-Hartman
` (651 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Zhang Yi, Jan Kara, Theodore Tso
From: Zhang Yi <yi.zhang@huawei.com>
commit e5e7010e5444d923e4091cafff61d05f2d19cada upstream.
After converting fs shrinkers to new scan/count API, we are no longer
pass zero nr_to_scan parameter to detect the number of objects to free,
just remove this check.
Fixes: 1ab6c4997e04 ("fs: convert fs shrinkers to new scan/count API")
Cc: stable@vger.kernel.org # 3.12+
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210522103045.690103-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/extents_status.c | 3 ---
1 file changed, 3 deletions(-)
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1574,9 +1574,6 @@ static unsigned long ext4_es_scan(struct
ret = percpu_counter_read_positive(&sbi->s_es_stats.es_stats_shk_cnt);
trace_ext4_es_shrink_scan_enter(sbi->s_sb, nr_to_scan, ret);
- if (!nr_to_scan)
- return ret;
-
nr_shrunk = __es_shrink(sbi, nr_to_scan, NULL);
ret = percpu_counter_read_positive(&sbi->s_es_stats.es_stats_shk_cnt);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 055/700] ext4: fix avefreec in find_group_orlov
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (53 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 054/700] ext4: remove check for zero nr_to_scan in ext4_es_scan() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 056/700] ext4: use ext4_grp_locked_error in mb_find_extent Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, stable, Pan Dong, Theodore Tso
From: Pan Dong <pandong.peter@bytedance.com>
commit c89849cc0259f3d33624cc3bd127685c3c0fa25d upstream.
The avefreec should be average free clusters instead
of average free blocks, otherwize Orlov's allocator
will not work properly when bigalloc enabled.
Cc: stable@kernel.org
Signed-off-by: Pan Dong <pandong.peter@bytedance.com>
Link: https://lore.kernel.org/r/20210525073656.31594-1-pandong.peter@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/ialloc.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -402,7 +402,7 @@ static void get_orlov_stats(struct super
*
* We always try to spread first-level directories.
*
- * If there are blockgroups with both free inodes and free blocks counts
+ * If there are blockgroups with both free inodes and free clusters counts
* not worse than average we return one with smallest directory count.
* Otherwise we simply return a random group.
*
@@ -411,7 +411,7 @@ static void get_orlov_stats(struct super
* It's OK to put directory into a group unless
* it has too many directories already (max_dirs) or
* it has too few free inodes left (min_inodes) or
- * it has too few free blocks left (min_blocks) or
+ * it has too few free clusters left (min_clusters) or
* Parent's group is preferred, if it doesn't satisfy these
* conditions we search cyclically through the rest. If none
* of the groups look good we just look for a group with more
@@ -427,7 +427,7 @@ static int find_group_orlov(struct super
ext4_group_t real_ngroups = ext4_get_groups_count(sb);
int inodes_per_group = EXT4_INODES_PER_GROUP(sb);
unsigned int freei, avefreei, grp_free;
- ext4_fsblk_t freeb, avefreec;
+ ext4_fsblk_t freec, avefreec;
unsigned int ndirs;
int max_dirs, min_inodes;
ext4_grpblk_t min_clusters;
@@ -446,9 +446,8 @@ static int find_group_orlov(struct super
freei = percpu_counter_read_positive(&sbi->s_freeinodes_counter);
avefreei = freei / ngroups;
- freeb = EXT4_C2B(sbi,
- percpu_counter_read_positive(&sbi->s_freeclusters_counter));
- avefreec = freeb;
+ freec = percpu_counter_read_positive(&sbi->s_freeclusters_counter);
+ avefreec = freec;
do_div(avefreec, ngroups);
ndirs = percpu_counter_read_positive(&sbi->s_dirs_counter);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 056/700] ext4: use ext4_grp_locked_error in mb_find_extent
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (54 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 055/700] ext4: fix avefreec in find_group_orlov Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 057/700] can: bcm: delay release of struct bcm_op after synchronize_rcu() Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Stephen Brennan, Lukas Czerner,
Junxiao Bi, Theodore Tso
From: Stephen Brennan <stephen.s.brennan@oracle.com>
commit cd84bbbac12a173a381a64c6ec8b76a5277b87b5 upstream.
Commit 5d1b1b3f492f ("ext4: fix BUG when calling ext4_error with locked
block group") introduces ext4_grp_locked_error to handle unlocking a
group in error cases. Otherwise, there is a possibility of a sleep while
atomic. However, since 43c73221b3b1 ("ext4: replace BUG_ON with WARN_ON
in mb_find_extent()"), mb_find_extent() has contained a ext4_error()
call while a group spinlock is held. Replace this with
ext4_grp_locked_error.
Fixes: 43c73221b3b1 ("ext4: replace BUG_ON with WARN_ON in mb_find_extent()")
Cc: <stable@vger.kernel.org> # 4.14+
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Link: https://lore.kernel.org/r/20210623232114.34457-1-stephen.s.brennan@oracle.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/mballoc.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1574,10 +1574,11 @@ static int mb_find_extent(struct ext4_bu
if (ex->fe_start + ex->fe_len > EXT4_CLUSTERS_PER_GROUP(e4b->bd_sb)) {
/* Should never happen! (but apparently sometimes does?!?) */
WARN_ON(1);
- ext4_error(e4b->bd_sb, "corruption or bug in mb_find_extent "
- "block=%d, order=%d needed=%d ex=%u/%d/%d@%u",
- block, order, needed, ex->fe_group, ex->fe_start,
- ex->fe_len, ex->fe_logical);
+ ext4_grp_locked_error(e4b->bd_sb, e4b->bd_group, 0, 0,
+ "corruption or bug in mb_find_extent "
+ "block=%d, order=%d needed=%d ex=%u/%d/%d@%u",
+ block, order, needed, ex->fe_group, ex->fe_start,
+ ex->fe_len, ex->fe_logical);
ex->fe_len = 0;
ex->fe_start = 0;
ex->fe_group = 0;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 057/700] can: bcm: delay release of struct bcm_op after synchronize_rcu()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (55 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 056/700] ext4: use ext4_grp_locked_error in mb_find_extent Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 058/700] can: gw: synchronize rcu operations before removing gw job entry Greg Kroah-Hartman
` (648 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+0f7e7e5e2f4f40fa89c0,
Norbert Slusarek, Thadeu Lima de Souza Cascardo, Oliver Hartkopp,
Marc Kleine-Budde
From: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
commit d5f9023fa61ee8b94f37a93f08e94b136cf1e463 upstream.
can_rx_register() callbacks may be called concurrently to the call to
can_rx_unregister(). The callbacks and callback data, though, are
protected by RCU and the struct sock reference count.
So the callback data is really attached to the life of sk, meaning
that it should be released on sk_destruct. However, bcm_remove_op()
calls tasklet_kill(), and RCU callbacks may be called under RCU
softirq, so that cannot be used on kernels before the introduction of
HRTIMER_MODE_SOFT.
However, bcm_rx_handler() is called under RCU protection, so after
calling can_rx_unregister(), we may call synchronize_rcu() in order to
wait for any RCU read-side critical sections to finish. That is,
bcm_rx_handler() won't be called anymore for those ops. So, we only
free them, after we do that synchronize_rcu().
Fixes: ffd980f976e7 ("[CAN]: Add broadcast manager (bcm) protocol")
Link: https://lore.kernel.org/r/20210619161813.2098382-1-cascardo@canonical.com
Cc: linux-stable <stable@vger.kernel.org>
Reported-by: syzbot+0f7e7e5e2f4f40fa89c0@syzkaller.appspotmail.com
Reported-by: Norbert Slusarek <nslusarek@gmx.net>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/can/bcm.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -785,6 +785,7 @@ static int bcm_delete_rx_op(struct list_
bcm_rx_handler, op);
list_del(&op->list);
+ synchronize_rcu();
bcm_remove_op(op);
return 1; /* done */
}
@@ -1533,9 +1534,13 @@ static int bcm_release(struct socket *so
REGMASK(op->can_id),
bcm_rx_handler, op);
- bcm_remove_op(op);
}
+ synchronize_rcu();
+
+ list_for_each_entry_safe(op, next, &bo->rx_ops, list)
+ bcm_remove_op(op);
+
#if IS_ENABLED(CONFIG_PROC_FS)
/* remove procfs entry */
if (net->can.bcmproc_dir && bo->bcm_proc_read)
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 058/700] can: gw: synchronize rcu operations before removing gw job entry
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (56 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 057/700] can: bcm: delay release of struct bcm_op after synchronize_rcu() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 059/700] can: isotp: isotp_release(): omit unintended hrtimer restart on socket release Greg Kroah-Hartman
` (647 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Oliver Hartkopp, Marc Kleine-Budde
From: Oliver Hartkopp <socketcan@hartkopp.net>
commit fb8696ab14adadb2e3f6c17c18ed26b3ecd96691 upstream.
can_can_gw_rcv() is called under RCU protection, so after calling
can_rx_unregister(), we have to call synchronize_rcu in order to wait
for any RCU read-side critical sections to finish before removing the
kmem_cache entry with the referenced gw job entry.
Link: https://lore.kernel.org/r/20210618173645.2238-1-socketcan@hartkopp.net
Fixes: c1aabdf379bc ("can-gw: add netlink based CAN routing")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/can/gw.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -596,6 +596,7 @@ static int cgw_notifier(struct notifier_
if (gwj->src.dev == dev || gwj->dst.dev == dev) {
hlist_del(&gwj->list);
cgw_unregister_filter(net, gwj);
+ synchronize_rcu();
kmem_cache_free(cgw_cache, gwj);
}
}
@@ -1154,6 +1155,7 @@ static void cgw_remove_all_jobs(struct n
hlist_for_each_entry_safe(gwj, nx, &net->can.cgw_list, list) {
hlist_del(&gwj->list);
cgw_unregister_filter(net, gwj);
+ synchronize_rcu();
kmem_cache_free(cgw_cache, gwj);
}
}
@@ -1222,6 +1224,7 @@ static int cgw_remove_job(struct sk_buff
hlist_del(&gwj->list);
cgw_unregister_filter(net, gwj);
+ synchronize_rcu();
kmem_cache_free(cgw_cache, gwj);
err = 0;
break;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 059/700] can: isotp: isotp_release(): omit unintended hrtimer restart on socket release
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (57 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 058/700] can: gw: synchronize rcu operations before removing gw job entry Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 060/700] can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done Greg Kroah-Hartman
` (646 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Oliver Hartkopp, Marc Kleine-Budde
From: Oliver Hartkopp <socketcan@hartkopp.net>
commit 14a4696bc3118ba49da28f79280e1d55603aa737 upstream.
When closing the isotp socket, the potentially running hrtimers are
canceled before removing the subscription for CAN identifiers via
can_rx_unregister().
This may lead to an unintended (re)start of a hrtimer in
isotp_rcv_cf() and isotp_rcv_fc() in the case that a CAN frame is
received by isotp_rcv() while the subscription removal is processed.
However, isotp_rcv() is called under RCU protection, so after calling
can_rx_unregister, we may call synchronize_rcu in order to wait for
any RCU read-side critical sections to finish. This prevents the
reception of CAN frames after hrtimer_cancel() and therefore the
unintended (re)start of the hrtimers.
Link: https://lore.kernel.org/r/20210618173713.2296-1-socketcan@hartkopp.net
Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/can/isotp.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -1028,9 +1028,6 @@ static int isotp_release(struct socket *
lock_sock(sk);
- hrtimer_cancel(&so->txtimer);
- hrtimer_cancel(&so->rxtimer);
-
/* remove current filters & unregister */
if (so->bound && (!(so->opt.flags & CAN_ISOTP_SF_BROADCAST))) {
if (so->ifindex) {
@@ -1042,10 +1039,14 @@ static int isotp_release(struct socket *
SINGLE_MASK(so->rxid),
isotp_rcv, sk);
dev_put(dev);
+ synchronize_rcu();
}
}
}
+ hrtimer_cancel(&so->txtimer);
+ hrtimer_cancel(&so->rxtimer);
+
so->ifindex = 0;
so->bound = 0;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 060/700] can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (58 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 059/700] can: isotp: isotp_release(): omit unintended hrtimer restart on socket release Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 061/700] can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path Greg Kroah-Hartman
` (645 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thadeu Lima de Souza Cascardo,
syzbot+bdf710cfc41c186fdff3, Oleksij Rempel, Marc Kleine-Budde
From: Oleksij Rempel <o.rempel@pengutronix.de>
commit 22c696fed25c63c7f67508309820358b94a96b6d upstream.
Set SOCK_RCU_FREE to let RCU to call sk_destruct() on completion.
Without this patch, we will run in to j1939_can_recv() after priv was
freed by j1939_sk_release()->j1939_sk_sock_destruct()
Fixes: 25fe97cb7620 ("can: j1939: move j1939_priv_put() into sk_destruct callback")
Link: https://lore.kernel.org/r/20210617130623.12705-1-o.rempel@pengutronix.de
Cc: linux-stable <stable@vger.kernel.org>
Reported-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Reported-by: syzbot+bdf710cfc41c186fdff3@syzkaller.appspotmail.com
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/can/j1939/main.c | 4 ++++
net/can/j1939/socket.c | 3 +++
2 files changed, 7 insertions(+)
--- a/net/can/j1939/main.c
+++ b/net/can/j1939/main.c
@@ -193,6 +193,10 @@ static void j1939_can_rx_unregister(stru
can_rx_unregister(dev_net(ndev), ndev, J1939_CAN_ID, J1939_CAN_MASK,
j1939_can_recv, priv);
+ /* The last reference of priv is dropped by the RCU deferred
+ * j1939_sk_sock_destruct() of the last socket, so we can
+ * safely drop this reference here.
+ */
j1939_priv_put(priv);
}
--- a/net/can/j1939/socket.c
+++ b/net/can/j1939/socket.c
@@ -398,6 +398,9 @@ static int j1939_sk_init(struct sock *sk
atomic_set(&jsk->skb_pending, 0);
spin_lock_init(&jsk->sk_session_queue_lock);
INIT_LIST_HEAD(&jsk->sk_session_queue);
+
+ /* j1939_sk_sock_destruct() depends on SOCK_RCU_FREE flag */
+ sock_set_flag(sk, SOCK_RCU_FREE);
sk->sk_destruct = j1939_sk_sock_destruct;
sk->sk_protocol = CAN_J1939;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 061/700] can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (59 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 060/700] can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 062/700] mac80211: remove iwlwifi specific workaround that broke sta NDP tx Greg Kroah-Hartman
` (644 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Stephane Grosjean, Marc Kleine-Budde
From: Stephane Grosjean <s.grosjean@peak-system.com>
commit b17233d385d0b6b43ecf81d43008cb1bbb008166 upstream.
Rather than just indicating that transmission can start, this patch
requires the explicit flushing of the network TX queue when the driver
is informed by the device that it can transmit, next to its
configuration.
In this way, if frames have already been written by the application,
they will actually be transmitted.
Fixes: ffd137f7043c ("can: peak/pcie_fd: remove useless code when interface starts")
Link: https://lore.kernel.org/r/20210623142600.149904-1-s.grosjean@peak-system.com
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/can/peak_canfd/peak_canfd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/can/peak_canfd/peak_canfd.c
+++ b/drivers/net/can/peak_canfd/peak_canfd.c
@@ -351,8 +351,8 @@ static int pucan_handle_status(struct pe
return err;
}
- /* start network queue (echo_skb array is empty) */
- netif_start_queue(ndev);
+ /* wake network queue up (echo_skb array is empty) */
+ netif_wake_queue(ndev);
return 0;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 062/700] mac80211: remove iwlwifi specific workaround that broke sta NDP tx
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (60 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 061/700] can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 063/700] mac80211: fix NULL ptr dereference during mesh peer connection for non HE devices Greg Kroah-Hartman
` (643 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Felix Fietkau, Johannes Berg
From: Felix Fietkau <nbd@nbd.name>
commit e41eb3e408de27982a5f8f50b2dd8002bed96908 upstream.
Sending nulldata packets is important for sw AP link probing and detecting
4-address mode links. The checks that dropped these packets were apparently
added to work around an iwlwifi firmware bug with multi-TID aggregation.
Fixes: 41cbb0f5a295 ("mac80211: add support for HE")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210619101517.90806-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 3 +++
net/mac80211/mlme.c | 9 ---------
2 files changed, 3 insertions(+), 9 deletions(-)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -1032,6 +1032,9 @@ static int iwl_mvm_tx_mpdu(struct iwl_mv
if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA))
return -1;
+ if (unlikely(ieee80211_is_any_nullfunc(fc)) && sta->he_cap.has_he)
+ return -1;
+
if (unlikely(ieee80211_is_probe_resp(fc)))
iwl_mvm_probe_resp_set_noa(mvm, skb);
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1094,11 +1094,6 @@ void ieee80211_send_nullfunc(struct ieee
struct ieee80211_hdr_3addr *nullfunc;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- /* Don't send NDPs when STA is connected HE */
- if (sdata->vif.type == NL80211_IFTYPE_STATION &&
- !(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
- return;
-
skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif,
!ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP));
if (!skb)
@@ -1130,10 +1125,6 @@ static void ieee80211_send_4addr_nullfun
if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
- /* Don't send NDPs when connected HE */
- if (!(sdata->u.mgd.flags & IEEE80211_STA_DISABLE_HE))
- return;
-
skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
if (!skb)
return;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 063/700] mac80211: fix NULL ptr dereference during mesh peer connection for non HE devices
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (61 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 062/700] mac80211: remove iwlwifi specific workaround that broke sta NDP tx Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 064/700] SUNRPC: Fix the batch tasks count wraparound Greg Kroah-Hartman
` (642 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Abinaya Kalaiselvan, Johannes Berg
From: Abinaya Kalaiselvan <akalaise@codeaurora.org>
commit 95f83ee8d857f006813755e89a126f1048b001e8 upstream.
"sband->iftype_data" is not assigned with any value for non HE supported
devices, which causes NULL pointer access during mesh peer connection
in those devices. Fix this by accessing the pointer after HE
capabilities condition check.
Cc: stable@vger.kernel.org
Fixes: 7f7aa94bcaf0 (mac80211: reduce peer HE MCS/NSS to own capabilities)
Signed-off-by: Abinaya Kalaiselvan <akalaise@codeaurora.org>
Link: https://lore.kernel.org/r/1624459244-4497-1-git-send-email-akalaise@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/mac80211/he.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/mac80211/he.c
+++ b/net/mac80211/he.c
@@ -111,7 +111,7 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct
struct sta_info *sta)
{
struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap;
- struct ieee80211_sta_he_cap own_he_cap = sband->iftype_data->he_cap;
+ struct ieee80211_sta_he_cap own_he_cap;
struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie;
u8 he_ppe_size;
u8 mcs_nss_size;
@@ -123,6 +123,8 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct
if (!he_cap_ie || !ieee80211_get_he_sta_cap(sband))
return;
+ own_he_cap = sband->iftype_data->he_cap;
+
/* Make sure size is OK */
mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap_ie_elem);
he_ppe_size =
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 064/700] SUNRPC: Fix the batch tasks count wraparound.
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (62 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 063/700] mac80211: fix NULL ptr dereference during mesh peer connection for non HE devices Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 065/700] SUNRPC: Should wake up the privileged task firstly Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhang Xiaoxu, Trond Myklebust
From: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
commit fcb170a9d825d7db4a3fb870b0300f5a40a8d096 upstream.
The 'queue->nr' will wraparound from 0 to 255 when only current
priority queue has tasks. This maybe lead a deadlock same as commit
dfe1fe75e00e ("NFSv4: Fix deadlock between nfs4_evict_inode()
and nfs4_opendata_get_inode()"):
Privileged delegreturn task is queued to privileged list because all
the slots are assigned. When non-privileged task complete and release
the slot, a non-privileged maybe picked out. It maybe allocate slot
failed when the session on draining.
If the 'queue->nr' has wraparound to 255, and no enough slot to
service it, then the privileged delegreturn will lost to wake up.
So we should avoid the wraparound on 'queue->nr'.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 5fcdfacc01f3 ("NFSv4: Return delegations synchronously in evict_inode")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/sunrpc/sched.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -595,7 +595,8 @@ static struct rpc_task *__rpc_find_next_
* Service a batch of tasks from a single owner.
*/
q = &queue->tasks[queue->priority];
- if (!list_empty(q) && --queue->nr) {
+ if (!list_empty(q) && queue->nr) {
+ queue->nr--;
task = list_first_entry(q, struct rpc_task, u.tk_wait.list);
goto out;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 065/700] SUNRPC: Should wake up the privileged task firstly.
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (63 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 064/700] SUNRPC: Fix the batch tasks count wraparound Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 066/700] bus: mhi: Wait for M2 state during system resume Greg Kroah-Hartman
` (640 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhang Xiaoxu, Trond Myklebust
From: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
commit 5483b904bf336948826594610af4c9bbb0d9e3aa upstream.
When find a task from wait queue to wake up, a non-privileged task may
be found out, rather than the privileged. This maybe lead a deadlock
same as commit dfe1fe75e00e ("NFSv4: Fix deadlock between nfs4_evict_inode()
and nfs4_opendata_get_inode()"):
Privileged delegreturn task is queued to privileged list because all
the slots are assigned. If there has no enough slot to wake up the
non-privileged batch tasks(session less than 8 slot), then the privileged
delegreturn task maybe lost waked up because the found out task can't
get slot since the session is on draining.
So we should treate the privileged task as the emergency task, and
execute it as for as we can.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 5fcdfacc01f3 ("NFSv4: Return delegations synchronously in evict_inode")
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/sunrpc/sched.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -592,6 +592,15 @@ static struct rpc_task *__rpc_find_next_
struct rpc_task *task;
/*
+ * Service the privileged queue.
+ */
+ q = &queue->tasks[RPC_NR_PRIORITY - 1];
+ if (queue->maxpriority > RPC_PRIORITY_PRIVILEGED && !list_empty(q)) {
+ task = list_first_entry(q, struct rpc_task, u.tk_wait.list);
+ goto out;
+ }
+
+ /*
* Service a batch of tasks from a single owner.
*/
q = &queue->tasks[queue->priority];
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 066/700] bus: mhi: Wait for M2 state during system resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (64 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 065/700] SUNRPC: Should wake up the privileged task firstly Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 067/700] bus: mhi: pci-generic: Add missing pci_disable_pcie_error_reporting() calls Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Baochen Qiang, Hemant Kumar,
Manivannan Sadhasivam
From: Baochen Qiang <bqiang@codeaurora.org>
commit 02b49cd1174527e611768fc2ce0f75a74dfec7ae upstream.
During system resume, MHI host triggers M3->M0 transition and then waits
for target device to enter M0 state. Once done, the device queues a state
change event into ctrl event ring and notifies MHI host by raising an
interrupt, where a tasklet is scheduled to process this event. In most
cases, the tasklet is served timely and wait operation succeeds.
However, there are cases where CPU is busy and cannot serve this tasklet
for some time. Once delay goes long enough, the device moves itself to M1
state and also interrupts MHI host after inserting a new state change
event to ctrl ring. Later when CPU finally has time to process the ring,
there will be two events:
1. For M3->M0 event, which is the first event to be processed queued first.
The tasklet handler serves the event, updates device state to M0 and
wakes up the task.
2. For M0->M1 event, which is processed later, the tasklet handler
triggers M1->M2 transition and updates device state to M2 directly,
then wakes up the MHI host (if it is still sleeping on this wait queue).
Note that although MHI host has been woken up while processing the first
event, it may still has no chance to run before the second event is
processed. In other words, MHI host has to keep waiting till timeout
causing the M0 state to be missed.
kernel log here:
...
Apr 15 01:45:14 test-NUC8i7HVK kernel: [ 4247.911251] mhi 0000:06:00.0: Entered with PM state: M3, MHI state: M3
Apr 15 01:45:14 test-NUC8i7HVK kernel: [ 4247.917762] mhi 0000:06:00.0: State change event to state: M0
Apr 15 01:45:14 test-NUC8i7HVK kernel: [ 4247.917767] mhi 0000:06:00.0: State change event to state: M1
Apr 15 01:45:14 test-NUC8i7HVK kernel: [ 4338.788231] mhi 0000:06:00.0: Did not enter M0 state, MHI state: M2, PM state: M2
...
Fix this issue by simply adding M2 as a valid state for resume.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Cc: stable@vger.kernel.org
Fixes: 0c6b20a1d720 ("bus: mhi: core: Add support for MHI suspend and resume")
Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210524040312.14409-1-bqiang@codeaurora.org
[mani: slightly massaged the commit message]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210621161616.77524-4-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/bus/mhi/core/pm.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/bus/mhi/core/pm.c
+++ b/drivers/bus/mhi/core/pm.c
@@ -911,6 +911,7 @@ int mhi_pm_resume(struct mhi_controller
ret = wait_event_timeout(mhi_cntrl->state_event,
mhi_cntrl->dev_state == MHI_STATE_M0 ||
+ mhi_cntrl->dev_state == MHI_STATE_M2 ||
MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state),
msecs_to_jiffies(mhi_cntrl->timeout_ms));
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 067/700] bus: mhi: pci-generic: Add missing pci_disable_pcie_error_reporting() calls
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (65 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 066/700] bus: mhi: Wait for M2 state during system resume Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 068/700] mm/gup: fix try_grab_compound_head() race with split_huge_page() Greg Kroah-Hartman
` (638 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Manivannan Sadhasivam
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
commit a25d144fb883c73506ba384de476bbaff8220a95 upstream.
If an error occurs after a 'pci_enable_pcie_error_reporting()' call, it
must be undone by a corresponding 'pci_disable_pcie_error_reporting()'
call
Add the missing call in the error handling path of the probe and in the
remove function.
Cc: <stable@vger.kernel.org>
Fixes: b012ee6bfe2a ("mhi: pci_generic: Add PCI error handlers")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/f70c14701f4922d67e717633c91b6c481b59f298.1623445348.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210621161616.77524-6-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/bus/mhi/pci_generic.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -470,7 +470,7 @@ static int mhi_pci_probe(struct pci_dev
err = mhi_register_controller(mhi_cntrl, mhi_cntrl_config);
if (err)
- return err;
+ goto err_disable_reporting;
/* MHI bus does not power up the controller by default */
err = mhi_prepare_for_power_up(mhi_cntrl);
@@ -496,6 +496,8 @@ err_unprepare:
mhi_unprepare_after_power_down(mhi_cntrl);
err_unregister:
mhi_unregister_controller(mhi_cntrl);
+err_disable_reporting:
+ pci_disable_pcie_error_reporting(pdev);
return err;
}
@@ -514,6 +516,7 @@ static void mhi_pci_remove(struct pci_de
}
mhi_unregister_controller(mhi_cntrl);
+ pci_disable_pcie_error_reporting(pdev);
}
static void mhi_pci_shutdown(struct pci_dev *pdev)
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 068/700] mm/gup: fix try_grab_compound_head() race with split_huge_page()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (66 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 067/700] bus: mhi: pci-generic: Add missing pci_disable_pcie_error_reporting() calls Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 069/700] perf/smmuv3: Dont trample existing events with global filter Greg Kroah-Hartman
` (637 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jann Horn, John Hubbard,
Matthew Wilcox, Kirill A. Shutemov, Jan Kara, Andrew Morton,
Linus Torvalds
From: Jann Horn <jannh@google.com>
commit c24d37322548a6ec3caec67100d28b9c1f89f60a upstream.
try_grab_compound_head() is used to grab a reference to a page from
get_user_pages_fast(), which is only protected against concurrent freeing
of page tables (via local_irq_save()), but not against concurrent TLB
flushes, freeing of data pages, or splitting of compound pages.
Because no reference is held to the page when try_grab_compound_head() is
called, the page may have been freed and reallocated by the time its
refcount has been elevated; therefore, once we're holding a stable
reference to the page, the caller re-checks whether the PTE still points
to the same page (with the same access rights).
The problem is that try_grab_compound_head() has to grab a reference on
the head page; but between the time we look up what the head page is and
the time we actually grab a reference on the head page, the compound page
may have been split up (either explicitly through split_huge_page() or by
freeing the compound page to the buddy allocator and then allocating its
individual order-0 pages). If that happens, get_user_pages_fast() may end
up returning the right page but lifting the refcount on a now-unrelated
page, leading to use-after-free of pages.
To fix it: Re-check whether the pages still belong together after lifting
the refcount on the head page. Move anything else that checks
compound_head(page) below the refcount increment.
This can't actually happen on bare-metal x86 (because there, disabling
IRQs locks out remote TLB flushes), but it can happen on virtualized x86
(e.g. under KVM) and probably also on arm64. The race window is pretty
narrow, and constantly allocating and shattering hugepages isn't exactly
fast; for now I've only managed to reproduce this in an x86 KVM guest with
an artificially widened timing window (by adding a loop that repeatedly
calls `inl(0x3f8 + 5)` in `try_get_compound_head()` to force VM exits, so
that PV TLB flushes are used instead of IPIs).
As requested on the list, also replace the existing VM_BUG_ON_PAGE() with
a warning and bailout. Since the existing code only performed the BUG_ON
check on DEBUG_VM kernels, ensure that the new code also only performs the
check under that configuration - I don't want to mix two logically
separate changes together too much. The macro VM_WARN_ON_ONCE_PAGE()
doesn't return a value on !DEBUG_VM, so wrap the whole check in an #ifdef
block. An alternative would be to change the VM_WARN_ON_ONCE_PAGE()
definition for !DEBUG_VM such that it always returns false, but since that
would differ from the behavior of the normal WARN macros, it might be too
confusing for readers.
Link: https://lkml.kernel.org/r/20210615012014.1100672-1-jannh@google.com
Fixes: 7aef4172c795 ("mm: handle PTE-mapped tail pages in gerneric fast gup implementaiton")
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
mm/gup.c | 58 +++++++++++++++++++++++++++++++++++++++++++---------------
1 file changed, 43 insertions(+), 15 deletions(-)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -44,6 +44,23 @@ static void hpage_pincount_sub(struct pa
atomic_sub(refs, compound_pincount_ptr(page));
}
+/* Equivalent to calling put_page() @refs times. */
+static void put_page_refs(struct page *page, int refs)
+{
+#ifdef CONFIG_DEBUG_VM
+ if (VM_WARN_ON_ONCE_PAGE(page_ref_count(page) < refs, page))
+ return;
+#endif
+
+ /*
+ * Calling put_page() for each ref is unnecessarily slow. Only the last
+ * ref needs a put_page().
+ */
+ if (refs > 1)
+ page_ref_sub(page, refs - 1);
+ put_page(page);
+}
+
/*
* Return the compound head page with ref appropriately incremented,
* or NULL if that failed.
@@ -56,6 +73,21 @@ static inline struct page *try_get_compo
return NULL;
if (unlikely(!page_cache_add_speculative(head, refs)))
return NULL;
+
+ /*
+ * At this point we have a stable reference to the head page; but it
+ * could be that between the compound_head() lookup and the refcount
+ * increment, the compound page was split, in which case we'd end up
+ * holding a reference on a page that has nothing to do with the page
+ * we were given anymore.
+ * So now that the head page is stable, recheck that the pages still
+ * belong together.
+ */
+ if (unlikely(compound_head(page) != head)) {
+ put_page_refs(head, refs);
+ return NULL;
+ }
+
return head;
}
@@ -95,6 +127,14 @@ __maybe_unused struct page *try_grab_com
return NULL;
/*
+ * CAUTION: Don't use compound_head() on the page before this
+ * point, the result won't be stable.
+ */
+ page = try_get_compound_head(page, refs);
+ if (!page)
+ return NULL;
+
+ /*
* When pinning a compound page of order > 1 (which is what
* hpage_pincount_available() checks for), use an exact count to
* track it, via hpage_pincount_add/_sub().
@@ -102,15 +142,10 @@ __maybe_unused struct page *try_grab_com
* However, be sure to *also* increment the normal page refcount
* field at least once, so that the page really is pinned.
*/
- if (!hpage_pincount_available(page))
- refs *= GUP_PIN_COUNTING_BIAS;
-
- page = try_get_compound_head(page, refs);
- if (!page)
- return NULL;
-
if (hpage_pincount_available(page))
hpage_pincount_add(page, refs);
+ else
+ page_ref_add(page, refs * (GUP_PIN_COUNTING_BIAS - 1));
mod_node_page_state(page_pgdat(page), NR_FOLL_PIN_ACQUIRED,
orig_refs);
@@ -134,14 +169,7 @@ static void put_compound_head(struct pag
refs *= GUP_PIN_COUNTING_BIAS;
}
- VM_BUG_ON_PAGE(page_ref_count(page) < refs, page);
- /*
- * Calling put_page() for each ref is unnecessarily slow. Only the last
- * ref needs a put_page().
- */
- if (refs > 1)
- page_ref_sub(page, refs - 1);
- put_page(page);
+ put_page_refs(page, refs);
}
/**
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 069/700] perf/smmuv3: Dont trample existing events with global filter
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (67 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 068/700] mm/gup: fix try_grab_compound_head() race with split_huge_page() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 070/700] KVM: nVMX: Handle split-lock #AC exceptions that happen in L2 Greg Kroah-Hartman
` (636 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Robin Murphy, Will Deacon
From: Robin Murphy <robin.murphy@arm.com>
commit 4c1daba15c209b99d192f147fea3dade30f72ed2 upstream.
With global filtering, we only allow an event to be scheduled if its
filter settings exactly match those of any existing events, therefore
it is pointless to reapply the filter in that case. Much worse, though,
is that in doing that we trample the event type of counter 0 if it's
already active, and never touch the appropriate PMEVTYPERn so the new
event is likely not counting the right thing either. Don't do that.
CC: stable@vger.kernel.org
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/32c80c0e46237f49ad8da0c9f8864e13c4a803aa.1623153312.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/perf/arm_smmuv3_pmu.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -277,7 +277,7 @@ static int smmu_pmu_apply_event_filter(s
struct perf_event *event, int idx)
{
u32 span, sid;
- unsigned int num_ctrs = smmu_pmu->num_counters;
+ unsigned int cur_idx, num_ctrs = smmu_pmu->num_counters;
bool filter_en = !!get_filter_enable(event);
span = filter_en ? get_filter_span(event) :
@@ -285,17 +285,19 @@ static int smmu_pmu_apply_event_filter(s
sid = filter_en ? get_filter_stream_id(event) :
SMMU_PMCG_DEFAULT_FILTER_SID;
- /* Support individual filter settings */
- if (!smmu_pmu->global_filter) {
+ cur_idx = find_first_bit(smmu_pmu->used_counters, num_ctrs);
+ /*
+ * Per-counter filtering, or scheduling the first globally-filtered
+ * event into an empty PMU so idx == 0 and it works out equivalent.
+ */
+ if (!smmu_pmu->global_filter || cur_idx == num_ctrs) {
smmu_pmu_set_event_filter(event, idx, span, sid);
return 0;
}
- /* Requested settings same as current global settings*/
- idx = find_first_bit(smmu_pmu->used_counters, num_ctrs);
- if (idx == num_ctrs ||
- smmu_pmu_check_global_filter(smmu_pmu->events[idx], event)) {
- smmu_pmu_set_event_filter(event, 0, span, sid);
+ /* Otherwise, must match whatever's currently scheduled */
+ if (smmu_pmu_check_global_filter(smmu_pmu->events[cur_idx], event)) {
+ smmu_pmu_set_evtyper(smmu_pmu, idx, get_event(event));
return 0;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 070/700] KVM: nVMX: Handle split-lock #AC exceptions that happen in L2
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (68 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 069/700] perf/smmuv3: Dont trample existing events with global filter Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 071/700] KVM: PPC: Book3S HV: Workaround high stack usage with clang Greg Kroah-Hartman
` (635 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Xiaoyao Li, Sean Christopherson,
Paolo Bonzini
From: Sean Christopherson <seanjc@google.com>
commit b33bb78a1fada6445c265c585ee0dd0fc6279102 upstream.
Mark #ACs that won't be reinjected to the guest as wanted by L0 so that
KVM handles split-lock #AC from L2 instead of forwarding the exception to
L1. Split-lock #AC isn't yet virtualized, i.e. L1 will treat it like a
regular #AC and do the wrong thing, e.g. reinject it into L2.
Fixes: e6f8b6c12f03 ("KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest")
Cc: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622172244.3561540-1-seanjc@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/vmx/nested.c | 3 +++
arch/x86/kvm/vmx/vmcs.h | 5 +++++
arch/x86/kvm/vmx/vmx.c | 4 ++--
arch/x86/kvm/vmx/vmx.h | 1 +
4 files changed, 11 insertions(+), 2 deletions(-)
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5775,6 +5775,9 @@ static bool nested_vmx_l0_wants_exit(str
else if (is_breakpoint(intr_info) &&
vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)
return true;
+ else if (is_alignment_check(intr_info) &&
+ !vmx_guest_inject_ac(vcpu))
+ return true;
return false;
case EXIT_REASON_EXTERNAL_INTERRUPT:
return true;
--- a/arch/x86/kvm/vmx/vmcs.h
+++ b/arch/x86/kvm/vmx/vmcs.h
@@ -117,6 +117,11 @@ static inline bool is_gp_fault(u32 intr_
return is_exception_n(intr_info, GP_VECTOR);
}
+static inline bool is_alignment_check(u32 intr_info)
+{
+ return is_exception_n(intr_info, AC_VECTOR);
+}
+
static inline bool is_machine_check(u32 intr_info)
{
return is_exception_n(intr_info, MC_VECTOR);
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4796,7 +4796,7 @@ static int handle_machine_check(struct k
* - Guest has #AC detection enabled in CR0
* - Guest EFLAGS has AC bit set
*/
-static inline bool guest_inject_ac(struct kvm_vcpu *vcpu)
+bool vmx_guest_inject_ac(struct kvm_vcpu *vcpu)
{
if (!boot_cpu_has(X86_FEATURE_SPLIT_LOCK_DETECT))
return true;
@@ -4905,7 +4905,7 @@ static int handle_exception_nmi(struct k
kvm_run->debug.arch.exception = ex_no;
break;
case AC_VECTOR:
- if (guest_inject_ac(vcpu)) {
+ if (vmx_guest_inject_ac(vcpu)) {
kvm_queue_exception_e(vcpu, AC_VECTOR, error_code);
return 1;
}
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -379,6 +379,7 @@ void vmx_set_segment(struct kvm_vcpu *vc
u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa,
int root_level);
+bool vmx_guest_inject_ac(struct kvm_vcpu *vcpu);
void vmx_update_exception_bitmap(struct kvm_vcpu *vcpu);
void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu);
bool vmx_nmi_blocked(struct kvm_vcpu *vcpu);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 071/700] KVM: PPC: Book3S HV: Workaround high stack usage with clang
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (69 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 070/700] KVM: nVMX: Handle split-lock #AC exceptions that happen in L2 Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 072/700] KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs Greg Kroah-Hartman
` (634 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Nathan Chancellor,
Michael Ellerman
From: Nathan Chancellor <nathan@kernel.org>
commit 51696f39cbee5bb684e7959c0c98b5f54548aa34 upstream.
LLVM does not emit optimal byteswap assembly, which results in high
stack usage in kvmhv_enter_nested_guest() due to the inlining of
byteswap_pt_regs(). With LLVM 12.0.0:
arch/powerpc/kvm/book3s_hv_nested.c:289:6: error: stack frame size of
2512 bytes in function 'kvmhv_enter_nested_guest' [-Werror,-Wframe-larger-than=]
long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu)
^
1 error generated.
While this gets fixed in LLVM, mark byteswap_pt_regs() as
noinline_for_stack so that it does not get inlined and break the build
due to -Werror by default in arch/powerpc/. Not inlining saves
approximately 800 bytes with LLVM 12.0.0:
arch/powerpc/kvm/book3s_hv_nested.c:290:6: warning: stack frame size of
1728 bytes in function 'kvmhv_enter_nested_guest' [-Wframe-larger-than=]
long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu)
^
1 warning generated.
Cc: stable@vger.kernel.org # v4.20+
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://github.com/ClangBuiltLinux/linux/issues/1292
Link: https://bugs.llvm.org/show_bug.cgi?id=49610
Link: https://lore.kernel.org/r/202104031853.vDT0Qjqj-lkp@intel.com/
Link: https://gist.github.com/ba710e3703bf45043a31e2806c843ffd
Link: https://lore.kernel.org/r/20210621182440.990242-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/kvm/book3s_hv_nested.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/powerpc/kvm/book3s_hv_nested.c
+++ b/arch/powerpc/kvm/book3s_hv_nested.c
@@ -53,7 +53,8 @@ void kvmhv_save_hv_regs(struct kvm_vcpu
hr->dawrx1 = vcpu->arch.dawrx1;
}
-static void byteswap_pt_regs(struct pt_regs *regs)
+/* Use noinline_for_stack due to https://bugs.llvm.org/show_bug.cgi?id=49610 */
+static noinline_for_stack void byteswap_pt_regs(struct pt_regs *regs)
{
unsigned long *addr = (unsigned long *) regs;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 072/700] KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (70 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 071/700] KVM: PPC: Book3S HV: Workaround high stack usage with clang Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 073/700] KVM: x86/mmu: Use MMUs role to detect CR4.SMEP value in nested NPT walk Greg Kroah-Hartman
` (633 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Paolo Bonzini
From: Sean Christopherson <seanjc@google.com>
commit 112022bdb5bc372e00e6e43cb88ee38ea67b97bd upstream.
Mark NX as being used for all non-nested shadow MMUs, as KVM will set the
NX bit for huge SPTEs if the iTLB mutli-hit mitigation is enabled.
Checking the mitigation itself is not sufficient as it can be toggled on
at any time and KVM doesn't reset MMU contexts when that happens. KVM
could reset the contexts, but that would require purging all SPTEs in all
MMUs, for no real benefit. And, KVM already forces EFER.NX=1 when TDP is
disabled (for WP=0, SMEP=1, NX=0), so technically NX is never reserved
for shadow MMUs.
Fixes: b8e8c8303ff2 ("kvm: mmu: ITLB_MULTIHIT mitigation")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/mmu/mmu.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4155,7 +4155,15 @@ static inline u64 reserved_hpa_bits(void
void
reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
{
- bool uses_nx = context->nx ||
+ /*
+ * KVM uses NX when TDP is disabled to handle a variety of scenarios,
+ * notably for huge SPTEs if iTLB multi-hit mitigation is enabled and
+ * to generate correct permissions for CR0.WP=0/CR4.SMEP=1/EFER.NX=0.
+ * The iTLB multi-hit workaround can be toggled at any time, so assume
+ * NX can be used by any non-nested shadow MMU to avoid having to reset
+ * MMU contexts. Note, KVM forces EFER.NX=1 when TDP is disabled.
+ */
+ bool uses_nx = context->nx || !tdp_enabled ||
context->mmu_role.base.smep_andnot_wp;
struct rsvd_bits_validate *shadow_zero_check;
int i;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 073/700] KVM: x86/mmu: Use MMUs role to detect CR4.SMEP value in nested NPT walk
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (71 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 072/700] KVM: x86/mmu: Treat NX as used (not reserved) for all !TDP shadow MMUs Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 074/700] KVM: x86: Properly reset MMU context at vCPU RESET/INIT Greg Kroah-Hartman
` (632 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Paolo Bonzini
From: Sean Christopherson <seanjc@google.com>
commit ef318b9edf66a082f23d00d79b70c17b4c055a26 upstream.
Use the MMU's role to get its effective SMEP value when injecting a fault
into the guest. When walking L1's (nested) NPT while L2 is active, vCPU
state will reflect L2, whereas NPT uses the host's (L1 in this case) CR0,
CR4, EFER, etc... If L1 and L2 have different settings for SMEP and
L1 does not have EFER.NX=1, this can result in an incorrect PFEC.FETCH
when injecting #NPF.
Fixes: e57d4a356ad3 ("KVM: Add instruction fetch checking when walking guest page table")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/mmu/paging_tmpl.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -471,8 +471,7 @@ retry_walk:
error:
errcode |= write_fault | user_fault;
- if (fetch_fault && (mmu->nx ||
- kvm_read_cr4_bits(vcpu, X86_CR4_SMEP)))
+ if (fetch_fault && (mmu->nx || mmu->mmu_role.ext.cr4_smep))
errcode |= PFERR_FETCH_MASK;
walker->fault.vector = PF_VECTOR;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 074/700] KVM: x86: Properly reset MMU context at vCPU RESET/INIT
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (72 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 073/700] KVM: x86/mmu: Use MMUs role to detect CR4.SMEP value in nested NPT walk Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 075/700] KVM: x86: Force all MMUs to reinitialize if guest CPUID is modified Greg Kroah-Hartman
` (631 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Paolo Bonzini
From: Sean Christopherson <seanjc@google.com>
commit 0aa1837533e5f4be8cc21bbc06314c23ba2c5447 upstream.
Reset the MMU context at vCPU INIT (and RESET for good measure) if CR0.PG
was set prior to INIT. Simply re-initializing the current MMU is not
sufficient as the current root HPA may not be usable in the new context.
E.g. if TDP is disabled and INIT arrives while the vCPU is in long mode,
KVM will fail to switch to the 32-bit pae_root and bomb on the next
VM-Enter due to running with a 64-bit CR3 in 32-bit mode.
This bug was papered over in both VMX and SVM, but still managed to rear
its head in the MMU role on VMX. Because EFER.LMA=1 requires CR0.PG=1,
kvm_calc_shadow_mmu_root_page_role() checks for EFER.LMA without first
checking CR0.PG. VMX's RESET/INIT flow writes CR0 before EFER, and so
an INIT with the vCPU in 64-bit mode will cause the hack-a-fix to
generate the wrong MMU role.
In VMX, the INIT issue is specific to running without unrestricted guest
since unrestricted guest is available if and only if EPT is enabled.
Commit 8668a3c468ed ("KVM: VMX: Reset mmu context when entering real
mode") resolved the issue by forcing a reset when entering emulated real
mode.
In SVM, commit ebae871a509d ("kvm: svm: reset mmu on VCPU reset") forced
a MMU reset on every INIT to workaround the flaw in common x86. Note, at
the time the bug was fixed, the SVM problem was exacerbated by a complete
lack of a CR4 update.
The vendor resets will be reverted in future patches, primarily to aid
bisection in case there are non-INIT flows that rely on the existing VMX
logic.
Because CR0.PG is unconditionally cleared on INIT, and because CR0.WP and
all CR4/EFER paging bits are ignored if CR0.PG=0, simply checking that
CR0.PG was '1' prior to INIT/RESET is sufficient to detect a required MMU
context reset.
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/x86.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -10302,6 +10302,8 @@ void kvm_arch_vcpu_destroy(struct kvm_vc
void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
{
+ unsigned long old_cr0 = kvm_read_cr0(vcpu);
+
kvm_lapic_reset(vcpu, init_event);
vcpu->arch.hflags = 0;
@@ -10370,6 +10372,17 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcp
vcpu->arch.ia32_xss = 0;
static_call(kvm_x86_vcpu_reset)(vcpu, init_event);
+
+ /*
+ * Reset the MMU context if paging was enabled prior to INIT (which is
+ * implied if CR0.PG=1 as CR0 will be '0' prior to RESET). Unlike the
+ * standard CR0/CR4/EFER modification paths, only CR0.PG needs to be
+ * checked because it is unconditionally cleared on INIT and all other
+ * paging related bits are ignored if paging is disabled, i.e. CR0.WP,
+ * CR4, and EFER changes are all irrelevant if CR0.PG was '0'.
+ */
+ if (old_cr0 & X86_CR0_PG)
+ kvm_mmu_reset_context(vcpu);
}
void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector)
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 075/700] KVM: x86: Force all MMUs to reinitialize if guest CPUID is modified
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (73 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 074/700] KVM: x86: Properly reset MMU context at vCPU RESET/INIT Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 076/700] s390/cio: dont call css_wait_for_slow_path() inside a lock Greg Kroah-Hartman
` (630 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yu Zhang, Sean Christopherson, Paolo Bonzini
From: Sean Christopherson <seanjc@google.com>
commit 49c6f8756cdffeb9af1fbcb86bacacced26465d7 upstream.
Invalidate all MMUs' roles after a CPUID update to force reinitizliation
of the MMU context/helpers. Despite the efforts of commit de3ccd26fafc
("KVM: MMU: record maximum physical address width in kvm_mmu_extended_role"),
there are still a handful of CPUID-based properties that affect MMU
behavior but are not incorporated into mmu_role. E.g. 1gb hugepage
support, AMD vs. Intel handling of bit 8, and SEV's C-Bit location all
factor into the guest's reserved PTE bits.
The obvious alternative would be to add all such properties to mmu_role,
but doing so provides no benefit over simply forcing a reinitialization
on every CPUID update, as setting guest CPUID is a rare operation.
Note, reinitializing all MMUs after a CPUID update does not fix all of
KVM's woes. Specifically, kvm_mmu_page_role doesn't track the CPUID
properties, which means that a vCPU can reuse shadow pages that should
not exist for the new vCPU model, e.g. that map GPAs that are now illegal
(due to MAXPHYADDR changes) or that set bits that are now reserved
(PAGE_SIZE for 1gb pages), etc...
Tracking the relevant CPUID properties in kvm_mmu_page_role would address
the majority of problems, but fully tracking that much state in the
shadow page role comes with an unpalatable cost as it would require a
non-trivial increase in KVM's memory footprint. The GBPAGES case is even
worse, as neither Intel nor AMD provides a way to disable 1gb hugepage
support in the hardware page walker, i.e. it's a virtualization hole that
can't be closed when using TDP.
In other words, resetting the MMU after a CPUID update is largely a
superficial fix. But, it will allow reverting the tracking of MAXPHYADDR
in the mmu_role, and that case in particular needs to mostly work because
KVM's shadow_root_level depends on guest MAXPHYADDR when 5-level paging
is supported. For cases where KVM botches guest behavior, the damage is
limited to that guest. But for the shadow_root_level, a misconfigured
MMU can cause KVM to incorrectly access memory, e.g. due to walking off
the end of its shadow page tables.
Fixes: 7dcd57552008 ("x86/kvm/mmu: check if tdp/shadow MMU reconfiguration is needed")
Cc: Yu Zhang <yu.c.zhang@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/cpuid.c | 6 +++---
arch/x86/kvm/mmu/mmu.c | 12 ++++++++++++
3 files changed, 16 insertions(+), 3 deletions(-)
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1433,6 +1433,7 @@ void kvm_mmu_set_mask_ptes(u64 user_mask
u64 dirty_mask, u64 nx_mask, u64 x_mask, u64 p_mask,
u64 acc_track_mask, u64 me_mask);
+void kvm_mmu_after_set_cpuid(struct kvm_vcpu *vcpu);
void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
struct kvm_memory_slot *memslot,
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -185,10 +185,10 @@ static void kvm_vcpu_after_set_cpuid(str
static_call(kvm_x86_vcpu_after_set_cpuid)(vcpu);
/*
- * Except for the MMU, which needs to be reset after any vendor
- * specific adjustments to the reserved GPA bits.
+ * Except for the MMU, which needs to do its thing any vendor specific
+ * adjustments to the reserved GPA bits.
*/
- kvm_mmu_reset_context(vcpu);
+ kvm_mmu_after_set_cpuid(vcpu);
}
static int is_efer_nx(void)
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4846,6 +4846,18 @@ kvm_mmu_calc_root_page_role(struct kvm_v
return role.base;
}
+void kvm_mmu_after_set_cpuid(struct kvm_vcpu *vcpu)
+{
+ /*
+ * Invalidate all MMU roles to force them to reinitialize as CPUID
+ * information is factored into reserved bit calculations.
+ */
+ vcpu->arch.root_mmu.mmu_role.ext.valid = 0;
+ vcpu->arch.guest_mmu.mmu_role.ext.valid = 0;
+ vcpu->arch.nested_mmu.mmu_role.ext.valid = 0;
+ kvm_mmu_reset_context(vcpu);
+}
+
void kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
{
kvm_mmu_unload(vcpu);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 076/700] s390/cio: dont call css_wait_for_slow_path() inside a lock
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (74 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 075/700] KVM: x86: Force all MMUs to reinitialize if guest CPUID is modified Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 077/700] s390: mm: Fix secure storage access exception handling Greg Kroah-Hartman
` (629 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Oberparleiter, Vineeth Vijayan,
Vasily Gorbik
From: Vineeth Vijayan <vneethv@linux.ibm.com>
commit c749d8c018daf5fba6dfac7b6c5c78b27efd7d65 upstream.
Currently css_wait_for_slow_path() gets called inside the chp->lock.
The path-verification-loop of slowpath inside this lock could lead to
deadlock as reported by the lockdep validator.
The ccw_device_get_chp_desc() during the instance of a device-set-online
would try to acquire the same 'chp->lock' to read the chp->desc.
The instance of this function can get called from multiple scenario,
like probing or setting-device online manually. This could, in some
corner-cases lead to the deadlock.
lockdep validator reported this as,
CPU0 CPU1
---- ----
lock(&chp->lock);
lock(kn->active#43);
lock(&chp->lock);
lock((wq_completion)cio);
The chp->lock was introduced to serialize the access of struct
channel_path. This lock is not needed for the css_wait_for_slow_path()
function, so invoke the slow-path function outside this lock.
Fixes: b730f3a93395 ("[S390] cio: add lock to struct channel_path")
Cc: <stable@vger.kernel.org>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/s390/cio/chp.c | 3 +++
drivers/s390/cio/chsc.c | 2 --
2 files changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -255,6 +255,9 @@ static ssize_t chp_status_write(struct d
if (!num_args)
return count;
+ /* Wait until previous actions have settled. */
+ css_wait_for_slow_path();
+
if (!strncasecmp(cmd, "on", 2) || !strcmp(cmd, "1")) {
mutex_lock(&cp->lock);
error = s390_vary_chpid(cp->chpid, 1);
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -801,8 +801,6 @@ int chsc_chp_vary(struct chp_id chpid, i
{
struct channel_path *chp = chpid_to_chp(chpid);
- /* Wait until previous actions have settled. */
- css_wait_for_slow_path();
/*
* Redo PathVerification on the devices the chpid connects to
*/
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 077/700] s390: mm: Fix secure storage access exception handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (75 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 076/700] s390/cio: dont call css_wait_for_slow_path() inside a lock Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 078/700] f2fs: Advertise encrypted casefolding in sysfs Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Janosch Frank, Christian Borntraeger,
Vasily Gorbik
From: Janosch Frank <frankja@linux.ibm.com>
commit 85b18d7b5e7ffefb2f076186511d39c4990aa005 upstream.
Turns out that the bit 61 in the TEID is not always 1 and if that's
the case the address space ID and the address are
unpredictable. Without an address and its address space ID we can't
export memory and hence we can only send a SIGSEGV to the process or
panic the kernel depending on who caused the exception.
Unfortunately bit 61 is only reliable if we have the "misc" UV feature
bit.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes: 084ea4d611a3d ("s390/mm: add (non)secure page access exceptions handlers")
Cc: stable@vger.kernel.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/s390/boot/uv.c | 1 +
arch/s390/include/asm/uv.h | 8 +++++++-
arch/s390/kernel/uv.c | 10 ++++++++++
arch/s390/mm/fault.c | 26 ++++++++++++++++++++++++++
4 files changed, 44 insertions(+), 1 deletion(-)
--- a/arch/s390/boot/uv.c
+++ b/arch/s390/boot/uv.c
@@ -36,6 +36,7 @@ void uv_query_info(void)
uv_info.max_sec_stor_addr = ALIGN(uvcb.max_guest_stor_addr, PAGE_SIZE);
uv_info.max_num_sec_conf = uvcb.max_num_sec_conf;
uv_info.max_guest_cpu_id = uvcb.max_guest_cpu_id;
+ uv_info.uv_feature_indications = uvcb.uv_feature_indications;
}
#ifdef CONFIG_PROTECTED_VIRTUALIZATION_GUEST
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -73,6 +73,10 @@ enum uv_cmds_inst {
BIT_UVC_CMD_UNPIN_PAGE_SHARED = 22,
};
+enum uv_feat_ind {
+ BIT_UV_FEAT_MISC = 0,
+};
+
struct uv_cb_header {
u16 len;
u16 cmd; /* Command Code */
@@ -97,7 +101,8 @@ struct uv_cb_qui {
u64 max_guest_stor_addr;
u8 reserved88[158 - 136];
u16 max_guest_cpu_id;
- u8 reserveda0[200 - 160];
+ u64 uv_feature_indications;
+ u8 reserveda0[200 - 168];
} __packed __aligned(8);
/* Initialize Ultravisor */
@@ -274,6 +279,7 @@ struct uv_info {
unsigned long max_sec_stor_addr;
unsigned int max_num_sec_conf;
unsigned short max_guest_cpu_id;
+ unsigned long uv_feature_indications;
};
extern struct uv_info uv_info;
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -364,6 +364,15 @@ static ssize_t uv_query_facilities(struc
static struct kobj_attribute uv_query_facilities_attr =
__ATTR(facilities, 0444, uv_query_facilities, NULL);
+static ssize_t uv_query_feature_indications(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ return sysfs_emit(buf, "%lx\n", uv_info.uv_feature_indications);
+}
+
+static struct kobj_attribute uv_query_feature_indications_attr =
+ __ATTR(feature_indications, 0444, uv_query_feature_indications, NULL);
+
static ssize_t uv_query_max_guest_cpus(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
@@ -396,6 +405,7 @@ static struct kobj_attribute uv_query_ma
static struct attribute *uv_query_attrs[] = {
&uv_query_facilities_attr.attr,
+ &uv_query_feature_indications_attr.attr,
&uv_query_max_guest_cpus_attr.attr,
&uv_query_max_guest_vms_attr.attr,
&uv_query_max_guest_addr_attr.attr,
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -791,6 +791,32 @@ void do_secure_storage_access(struct pt_
struct page *page;
int rc;
+ /*
+ * bit 61 tells us if the address is valid, if it's not we
+ * have a major problem and should stop the kernel or send a
+ * SIGSEGV to the process. Unfortunately bit 61 is not
+ * reliable without the misc UV feature so we need to check
+ * for that as well.
+ */
+ if (test_bit_inv(BIT_UV_FEAT_MISC, &uv_info.uv_feature_indications) &&
+ !test_bit_inv(61, ®s->int_parm_long)) {
+ /*
+ * When this happens, userspace did something that it
+ * was not supposed to do, e.g. branching into secure
+ * memory. Trigger a segmentation fault.
+ */
+ if (user_mode(regs)) {
+ send_sig(SIGSEGV, current, 0);
+ return;
+ }
+
+ /*
+ * The kernel should never run into this case and we
+ * have no way out of this situation.
+ */
+ panic("Unexpected PGM 0x3d with TEID bit 61=0");
+ }
+
switch (get_fault_type(regs)) {
case USER_FAULT:
mm = current->mm;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 078/700] f2fs: Advertise encrypted casefolding in sysfs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (76 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 077/700] s390: mm: Fix secure storage access exception handling Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 079/700] f2fs: Prevent swap file in LFS mode Greg Kroah-Hartman
` (627 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Daniel Rosenberg, Eric Biggers,
Chao Yu, Jaegeuk Kim
From: Daniel Rosenberg <drosen@google.com>
commit 4c039d5452691fe80260e4c3dd7b629a095bd0a7 upstream.
Older kernels don't support encryption with casefolding. This adds
the sysfs entry encrypted_casefold to show support for those combined
features. Support for this feature was originally added by
commit 7ad08a58bf67 ("f2fs: Handle casefolding with Encryption")
Fixes: 7ad08a58bf67 ("f2fs: Handle casefolding with Encryption")
Cc: stable@vger.kernel.org # v5.11+
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/sysfs.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -525,6 +525,7 @@ enum feat_id {
FEAT_CASEFOLD,
FEAT_COMPRESSION,
FEAT_TEST_DUMMY_ENCRYPTION_V2,
+ FEAT_ENCRYPTED_CASEFOLD,
};
static ssize_t f2fs_feature_show(struct f2fs_attr *a,
@@ -546,6 +547,7 @@ static ssize_t f2fs_feature_show(struct
case FEAT_CASEFOLD:
case FEAT_COMPRESSION:
case FEAT_TEST_DUMMY_ENCRYPTION_V2:
+ case FEAT_ENCRYPTED_CASEFOLD:
return sprintf(buf, "supported\n");
}
return 0;
@@ -649,7 +651,10 @@ F2FS_GENERAL_RO_ATTR(avg_vblocks);
#ifdef CONFIG_FS_ENCRYPTION
F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2, FEAT_TEST_DUMMY_ENCRYPTION_V2);
+#ifdef CONFIG_UNICODE
+F2FS_FEATURE_RO_ATTR(encrypted_casefold, FEAT_ENCRYPTED_CASEFOLD);
#endif
+#endif /* CONFIG_FS_ENCRYPTION */
#ifdef CONFIG_BLK_DEV_ZONED
F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
#endif
@@ -739,7 +744,10 @@ static struct attribute *f2fs_feat_attrs
#ifdef CONFIG_FS_ENCRYPTION
ATTR_LIST(encryption),
ATTR_LIST(test_dummy_encryption_v2),
+#ifdef CONFIG_UNICODE
+ ATTR_LIST(encrypted_casefold),
#endif
+#endif /* CONFIG_FS_ENCRYPTION */
#ifdef CONFIG_BLK_DEV_ZONED
ATTR_LIST(block_zoned),
#endif
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 079/700] f2fs: Prevent swap file in LFS mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (77 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 078/700] f2fs: Advertise encrypted casefolding in sysfs Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 080/700] clk: k210: Fix k210_clk_set_parent() Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shinichiro Kawasaki, Chao Yu, Jaegeuk Kim
From: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
commit d927ccfccb009ede24448d69c08b12e7c8a6979b upstream.
The kernel writes to swap files on f2fs directly without the assistance
of the filesystem. This direct write by kernel can be non-sequential
even when the f2fs is in LFS mode. Such non-sequential write conflicts
with the LFS semantics. Especially when f2fs is set up on zoned block
devices, the non-sequential write causes unaligned write command errors.
To avoid the non-sequential writes to swap files, prevent swap file
activation when the filesystem is in LFS mode.
Fixes: 4969c06a0d83 ("f2fs: support swap file w/ DIO")
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Cc: stable@vger.kernel.org # v5.10+
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/data.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3971,6 +3971,12 @@ static int f2fs_swap_activate(struct swa
if (f2fs_readonly(F2FS_I_SB(inode)->sb))
return -EROFS;
+ if (f2fs_lfs_mode(F2FS_I_SB(inode))) {
+ f2fs_err(F2FS_I_SB(inode),
+ "Swapfile not supported in LFS mode");
+ return -EINVAL;
+ }
+
ret = f2fs_convert_inline_inode(inode);
if (ret)
return ret;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 080/700] clk: k210: Fix k210_clk_set_parent()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (78 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 079/700] f2fs: Prevent swap file in LFS mode Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 081/700] clk: agilex/stratix10/n5x: fix how the bypass_reg is handled Greg Kroah-Hartman
` (625 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Damien Le Moal, Stephen Boyd
From: Damien Le Moal <damien.lemoal@wdc.com>
commit faa0e307948594b4379a86fff7fb2409067aed6f upstream.
In k210_clk_set_parent(), add missing writel() call to update the mux
register of a clock to change its parent. This also fixes a compilation
warning with clang when compiling with W=1.
Fixes: c6ca7616f7d5 ("clk: Add RISC-V Canaan Kendryte K210 clock driver")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Link: https://lore.kernel.org/r/20210622064502.14841-1-damien.lemoal@wdc.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/clk/clk-k210.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/clk/clk-k210.c
+++ b/drivers/clk/clk-k210.c
@@ -722,6 +722,7 @@ static int k210_clk_set_parent(struct cl
reg |= BIT(cfg->mux_bit);
else
reg &= ~BIT(cfg->mux_bit);
+ writel(reg, ksc->regs + cfg->mux_reg);
spin_unlock_irqrestore(&ksc->clk_lock, flags);
return 0;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 081/700] clk: agilex/stratix10/n5x: fix how the bypass_reg is handled
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (79 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 080/700] clk: k210: Fix k210_clk_set_parent() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 082/700] clk: agilex/stratix10: remove noc_clk Greg Kroah-Hartman
` (624 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dinh Nguyen, Stephen Boyd
From: Dinh Nguyen <dinguyen@kernel.org>
commit dfd1427c3769ba51297777dbb296f1802d72dbf6 upstream.
If the bypass_reg is set, then we can return the bypass parent, however,
if there is not a bypass_reg, we need to figure what the correct parent
mux is.
The previous code never handled the parent mux if there was a
bypass_reg.
Fixes: 80c6b7a0894f ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210611025201.118799-4-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/clk/socfpga/clk-periph-s10.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
--- a/drivers/clk/socfpga/clk-periph-s10.c
+++ b/drivers/clk/socfpga/clk-periph-s10.c
@@ -64,16 +64,21 @@ static u8 clk_periclk_get_parent(struct
{
struct socfpga_periph_clk *socfpgaclk = to_periph_clk(hwclk);
u32 clk_src, mask;
- u8 parent;
+ u8 parent = 0;
+ /* handle the bypass first */
if (socfpgaclk->bypass_reg) {
mask = (0x1 << socfpgaclk->bypass_shift);
parent = ((readl(socfpgaclk->bypass_reg) & mask) >>
socfpgaclk->bypass_shift);
- } else {
+ if (parent)
+ return parent;
+ }
+
+ if (socfpgaclk->hw.reg) {
clk_src = readl(socfpgaclk->hw.reg);
parent = (clk_src >> CLK_MGR_FREE_SHIFT) &
- CLK_MGR_FREE_MASK;
+ CLK_MGR_FREE_MASK;
}
return parent;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 082/700] clk: agilex/stratix10: remove noc_clk
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (80 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 081/700] clk: agilex/stratix10/n5x: fix how the bypass_reg is handled Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 083/700] clk: agilex/stratix10: fix bypass representation Greg Kroah-Hartman
` (623 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dinh Nguyen, Stephen Boyd
From: Dinh Nguyen <dinguyen@kernel.org>
commit efbe21df3e889c0f4bf682c2b7e2465d60b0127c upstream.
Early documentation had a noc_clk, but in reality, it's just the
noc_free_clk. Remove the noc_clk clock and just use the noc_free_clk.
Fixes: 80c6b7a0894f ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210611025201.118799-1-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/clk/socfpga/clk-agilex.c | 32 +++++++++++++++-----------------
drivers/clk/socfpga/clk-s10.c | 32 +++++++++++++++-----------------
2 files changed, 30 insertions(+), 34 deletions(-)
--- a/drivers/clk/socfpga/clk-agilex.c
+++ b/drivers/clk/socfpga/clk-agilex.c
@@ -222,11 +222,9 @@ static const struct stratix10_perip_cnt_
{ AGILEX_MPU_FREE_CLK, "mpu_free_clk", NULL, mpu_free_mux, ARRAY_SIZE(mpu_free_mux),
0, 0x3C, 0, 0, 0},
{ AGILEX_NOC_FREE_CLK, "noc_free_clk", NULL, noc_free_mux, ARRAY_SIZE(noc_free_mux),
- 0, 0x40, 0, 0, 1},
- { AGILEX_L4_SYS_FREE_CLK, "l4_sys_free_clk", "noc_free_clk", NULL, 1, 0,
- 0, 4, 0, 0},
- { AGILEX_NOC_CLK, "noc_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux),
- 0, 0, 0, 0x30, 1},
+ 0, 0x40, 0, 0, 0},
+ { AGILEX_L4_SYS_FREE_CLK, "l4_sys_free_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0,
+ 0, 4, 0x30, 1},
{ AGILEX_EMAC_A_FREE_CLK, "emaca_free_clk", NULL, emaca_free_mux, ARRAY_SIZE(emaca_free_mux),
0, 0xD4, 0, 0x88, 0},
{ AGILEX_EMAC_B_FREE_CLK, "emacb_free_clk", NULL, emacb_free_mux, ARRAY_SIZE(emacb_free_mux),
@@ -252,24 +250,24 @@ static const struct stratix10_gate_clock
0, 0, 0, 0, 0, 0, 4},
{ AGILEX_MPU_CCU_CLK, "mpu_ccu_clk", "mpu_clk", NULL, 1, 0, 0x24,
0, 0, 0, 0, 0, 0, 2},
- { AGILEX_L4_MAIN_CLK, "l4_main_clk", "noc_clk", NULL, 1, 0, 0x24,
- 1, 0x44, 0, 2, 0, 0, 0},
- { AGILEX_L4_MP_CLK, "l4_mp_clk", "noc_clk", NULL, 1, 0, 0x24,
- 2, 0x44, 8, 2, 0, 0, 0},
+ { AGILEX_L4_MAIN_CLK, "l4_main_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
+ 1, 0x44, 0, 2, 0x30, 1, 0},
+ { AGILEX_L4_MP_CLK, "l4_mp_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
+ 2, 0x44, 8, 2, 0x30, 1, 0},
/*
* The l4_sp_clk feeds a 100 MHz clock to various peripherals, one of them
* being the SP timers, thus cannot get gated.
*/
- { AGILEX_L4_SP_CLK, "l4_sp_clk", "noc_clk", NULL, 1, CLK_IS_CRITICAL, 0x24,
- 3, 0x44, 16, 2, 0, 0, 0},
- { AGILEX_CS_AT_CLK, "cs_at_clk", "noc_clk", NULL, 1, 0, 0x24,
- 4, 0x44, 24, 2, 0, 0, 0},
- { AGILEX_CS_TRACE_CLK, "cs_trace_clk", "noc_clk", NULL, 1, 0, 0x24,
- 4, 0x44, 26, 2, 0, 0, 0},
+ { AGILEX_L4_SP_CLK, "l4_sp_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), CLK_IS_CRITICAL, 0x24,
+ 3, 0x44, 16, 2, 0x30, 1, 0},
+ { AGILEX_CS_AT_CLK, "cs_at_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
+ 4, 0x44, 24, 2, 0x30, 1, 0},
+ { AGILEX_CS_TRACE_CLK, "cs_trace_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
+ 4, 0x44, 26, 2, 0x30, 1, 0},
{ AGILEX_CS_PDBG_CLK, "cs_pdbg_clk", "cs_at_clk", NULL, 1, 0, 0x24,
4, 0x44, 28, 1, 0, 0, 0},
- { AGILEX_CS_TIMER_CLK, "cs_timer_clk", "noc_clk", NULL, 1, 0, 0x24,
- 5, 0, 0, 0, 0, 0, 0},
+ { AGILEX_CS_TIMER_CLK, "cs_timer_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
+ 5, 0, 0, 0, 0x30, 1, 0},
{ AGILEX_S2F_USER0_CLK, "s2f_user0_clk", NULL, s2f_usr0_mux, ARRAY_SIZE(s2f_usr0_mux), 0, 0x24,
6, 0, 0, 0, 0, 0, 0},
{ AGILEX_EMAC0_CLK, "emac0_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0x7C,
--- a/drivers/clk/socfpga/clk-s10.c
+++ b/drivers/clk/socfpga/clk-s10.c
@@ -167,7 +167,7 @@ static const struct stratix10_perip_cnt_
{ STRATIX10_MPU_FREE_CLK, "mpu_free_clk", NULL, mpu_free_mux, ARRAY_SIZE(mpu_free_mux),
0, 0x48, 0, 0, 0},
{ STRATIX10_NOC_FREE_CLK, "noc_free_clk", NULL, noc_free_mux, ARRAY_SIZE(noc_free_mux),
- 0, 0x4C, 0, 0, 0},
+ 0, 0x4C, 0, 0x3C, 1},
{ STRATIX10_MAIN_EMACA_CLK, "main_emaca_clk", "main_noc_base_clk", NULL, 1, 0,
0x50, 0, 0, 0},
{ STRATIX10_MAIN_EMACB_CLK, "main_emacb_clk", "main_noc_base_clk", NULL, 1, 0,
@@ -200,10 +200,8 @@ static const struct stratix10_perip_cnt_
0, 0xD4, 0, 0, 0},
{ STRATIX10_PERI_PSI_REF_CLK, "peri_psi_ref_clk", "peri_noc_base_clk", NULL, 1, 0,
0xD8, 0, 0, 0},
- { STRATIX10_L4_SYS_FREE_CLK, "l4_sys_free_clk", "noc_free_clk", NULL, 1, 0,
- 0, 4, 0, 0},
- { STRATIX10_NOC_CLK, "noc_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux),
- 0, 0, 0, 0x3C, 1},
+ { STRATIX10_L4_SYS_FREE_CLK, "l4_sys_free_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0,
+ 0, 4, 0x3C, 1},
{ STRATIX10_EMAC_A_FREE_CLK, "emaca_free_clk", NULL, emaca_free_mux, ARRAY_SIZE(emaca_free_mux),
0, 0, 2, 0xB0, 0},
{ STRATIX10_EMAC_B_FREE_CLK, "emacb_free_clk", NULL, emacb_free_mux, ARRAY_SIZE(emacb_free_mux),
@@ -227,20 +225,20 @@ static const struct stratix10_gate_clock
0, 0, 0, 0, 0, 0, 4},
{ STRATIX10_MPU_L2RAM_CLK, "mpu_l2ram_clk", "mpu_clk", NULL, 1, 0, 0x30,
0, 0, 0, 0, 0, 0, 2},
- { STRATIX10_L4_MAIN_CLK, "l4_main_clk", "noc_clk", NULL, 1, 0, 0x30,
- 1, 0x70, 0, 2, 0, 0, 0},
- { STRATIX10_L4_MP_CLK, "l4_mp_clk", "noc_clk", NULL, 1, 0, 0x30,
- 2, 0x70, 8, 2, 0, 0, 0},
- { STRATIX10_L4_SP_CLK, "l4_sp_clk", "noc_clk", NULL, 1, CLK_IS_CRITICAL, 0x30,
- 3, 0x70, 16, 2, 0, 0, 0},
- { STRATIX10_CS_AT_CLK, "cs_at_clk", "noc_clk", NULL, 1, 0, 0x30,
- 4, 0x70, 24, 2, 0, 0, 0},
- { STRATIX10_CS_TRACE_CLK, "cs_trace_clk", "noc_clk", NULL, 1, 0, 0x30,
- 4, 0x70, 26, 2, 0, 0, 0},
+ { STRATIX10_L4_MAIN_CLK, "l4_main_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30,
+ 1, 0x70, 0, 2, 0x3C, 1, 0},
+ { STRATIX10_L4_MP_CLK, "l4_mp_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30,
+ 2, 0x70, 8, 2, 0x3C, 1, 0},
+ { STRATIX10_L4_SP_CLK, "l4_sp_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), CLK_IS_CRITICAL, 0x30,
+ 3, 0x70, 16, 2, 0x3C, 1, 0},
+ { STRATIX10_CS_AT_CLK, "cs_at_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30,
+ 4, 0x70, 24, 2, 0x3C, 1, 0},
+ { STRATIX10_CS_TRACE_CLK, "cs_trace_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30,
+ 4, 0x70, 26, 2, 0x3C, 1, 0},
{ STRATIX10_CS_PDBG_CLK, "cs_pdbg_clk", "cs_at_clk", NULL, 1, 0, 0x30,
4, 0x70, 28, 1, 0, 0, 0},
- { STRATIX10_CS_TIMER_CLK, "cs_timer_clk", "noc_clk", NULL, 1, 0, 0x30,
- 5, 0, 0, 0, 0, 0, 0},
+ { STRATIX10_CS_TIMER_CLK, "cs_timer_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x30,
+ 5, 0, 0, 0, 0x3C, 1, 0},
{ STRATIX10_S2F_USER0_CLK, "s2f_user0_clk", NULL, s2f_usr0_mux, ARRAY_SIZE(s2f_usr0_mux), 0, 0x30,
6, 0, 0, 0, 0, 0, 0},
{ STRATIX10_EMAC0_CLK, "emac0_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0xA4,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 083/700] clk: agilex/stratix10: fix bypass representation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (81 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 082/700] clk: agilex/stratix10: remove noc_clk Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 084/700] rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path Greg Kroah-Hartman
` (622 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dinh Nguyen, Stephen Boyd
From: Dinh Nguyen <dinguyen@kernel.org>
commit 6855ee839699bdabb4b16cf942557fd763bcb1fa upstream.
Each of these clocks(s2f_usr0/1, sdmmc_clk, gpio_db, emac_ptp,
emac0/1/2) have a bypass setting that can use the boot_clk. The
previous representation was not correct.
Fix the representation.
Fixes: 80c6b7a0894f ("clk: socfpga: agilex: add clock driver for the Agilex platform")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210611025201.118799-2-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/clk/socfpga/clk-agilex.c | 57 +++++++++++++++++++++++++++++++--------
drivers/clk/socfpga/clk-s10.c | 55 ++++++++++++++++++++++++++++++-------
2 files changed, 91 insertions(+), 21 deletions(-)
--- a/drivers/clk/socfpga/clk-agilex.c
+++ b/drivers/clk/socfpga/clk-agilex.c
@@ -186,6 +186,41 @@ static const struct clk_parent_data noc_
.name = "boot_clk", },
};
+static const struct clk_parent_data sdmmc_mux[] = {
+ { .fw_name = "sdmmc_free_clk",
+ .name = "sdmmc_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data s2f_user1_mux[] = {
+ { .fw_name = "s2f_user1_free_clk",
+ .name = "s2f_user1_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data psi_mux[] = {
+ { .fw_name = "psi_ref_free_clk",
+ .name = "psi_ref_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data gpio_db_mux[] = {
+ { .fw_name = "gpio_db_free_clk",
+ .name = "gpio_db_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data emac_ptp_mux[] = {
+ { .fw_name = "emac_ptp_free_clk",
+ .name = "emac_ptp_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
/* clocks in AO (always on) controller */
static const struct stratix10_pll_clock agilex_pll_clks[] = {
{ AGILEX_BOOT_CLK, "boot_clk", boot_mux, ARRAY_SIZE(boot_mux), 0,
@@ -234,7 +269,7 @@ static const struct stratix10_perip_cnt_
{ AGILEX_GPIO_DB_FREE_CLK, "gpio_db_free_clk", NULL, gpio_db_free_mux,
ARRAY_SIZE(gpio_db_free_mux), 0, 0xE0, 0, 0x88, 3},
{ AGILEX_SDMMC_FREE_CLK, "sdmmc_free_clk", NULL, sdmmc_free_mux,
- ARRAY_SIZE(sdmmc_free_mux), 0, 0xE4, 0, 0x88, 4},
+ ARRAY_SIZE(sdmmc_free_mux), 0, 0xE4, 0, 0, 0},
{ AGILEX_S2F_USER0_FREE_CLK, "s2f_user0_free_clk", NULL, s2f_usr0_free_mux,
ARRAY_SIZE(s2f_usr0_free_mux), 0, 0xE8, 0, 0, 0},
{ AGILEX_S2F_USER1_FREE_CLK, "s2f_user1_free_clk", NULL, s2f_usr1_free_mux,
@@ -276,16 +311,16 @@ static const struct stratix10_gate_clock
1, 0, 0, 0, 0x94, 27, 0},
{ AGILEX_EMAC2_CLK, "emac2_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0x7C,
2, 0, 0, 0, 0x94, 28, 0},
- { AGILEX_EMAC_PTP_CLK, "emac_ptp_clk", "emac_ptp_free_clk", NULL, 1, 0, 0x7C,
- 3, 0, 0, 0, 0, 0, 0},
- { AGILEX_GPIO_DB_CLK, "gpio_db_clk", "gpio_db_free_clk", NULL, 1, 0, 0x7C,
- 4, 0x98, 0, 16, 0, 0, 0},
- { AGILEX_SDMMC_CLK, "sdmmc_clk", "sdmmc_free_clk", NULL, 1, 0, 0x7C,
- 5, 0, 0, 0, 0, 0, 4},
- { AGILEX_S2F_USER1_CLK, "s2f_user1_clk", "s2f_user1_free_clk", NULL, 1, 0, 0x7C,
- 6, 0, 0, 0, 0, 0, 0},
- { AGILEX_PSI_REF_CLK, "psi_ref_clk", "psi_ref_free_clk", NULL, 1, 0, 0x7C,
- 7, 0, 0, 0, 0, 0, 0},
+ { AGILEX_EMAC_PTP_CLK, "emac_ptp_clk", NULL, emac_ptp_mux, ARRAY_SIZE(emac_ptp_mux), 0, 0x7C,
+ 3, 0, 0, 0, 0x88, 2, 0},
+ { AGILEX_GPIO_DB_CLK, "gpio_db_clk", NULL, gpio_db_mux, ARRAY_SIZE(gpio_db_mux), 0, 0x7C,
+ 4, 0x98, 0, 16, 0x88, 3, 0},
+ { AGILEX_SDMMC_CLK, "sdmmc_clk", NULL, sdmmc_mux, ARRAY_SIZE(sdmmc_mux), 0, 0x7C,
+ 5, 0, 0, 0, 0x88, 4, 4},
+ { AGILEX_S2F_USER1_CLK, "s2f_user1_clk", NULL, s2f_user1_mux, ARRAY_SIZE(s2f_user1_mux), 0, 0x7C,
+ 6, 0, 0, 0, 0x88, 5, 0},
+ { AGILEX_PSI_REF_CLK, "psi_ref_clk", NULL, psi_mux, ARRAY_SIZE(psi_mux), 0, 0x7C,
+ 7, 0, 0, 0, 0x88, 6, 0},
{ AGILEX_USB_CLK, "usb_clk", "l4_mp_clk", NULL, 1, 0, 0x7C,
8, 0, 0, 0, 0, 0, 0},
{ AGILEX_SPI_M_CLK, "spi_m_clk", "l4_mp_clk", NULL, 1, 0, 0x7C,
--- a/drivers/clk/socfpga/clk-s10.c
+++ b/drivers/clk/socfpga/clk-s10.c
@@ -144,6 +144,41 @@ static const struct clk_parent_data mpu_
.name = "f2s-free-clk", },
};
+static const struct clk_parent_data sdmmc_mux[] = {
+ { .fw_name = "sdmmc_free_clk",
+ .name = "sdmmc_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data s2f_user1_mux[] = {
+ { .fw_name = "s2f_user1_free_clk",
+ .name = "s2f_user1_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data psi_mux[] = {
+ { .fw_name = "psi_ref_free_clk",
+ .name = "psi_ref_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data gpio_db_mux[] = {
+ { .fw_name = "gpio_db_free_clk",
+ .name = "gpio_db_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
+static const struct clk_parent_data emac_ptp_mux[] = {
+ { .fw_name = "emac_ptp_free_clk",
+ .name = "emac_ptp_free_clk", },
+ { .fw_name = "boot_clk",
+ .name = "boot_clk", },
+};
+
/* clocks in AO (always on) controller */
static const struct stratix10_pll_clock s10_pll_clks[] = {
{ STRATIX10_BOOT_CLK, "boot_clk", boot_mux, ARRAY_SIZE(boot_mux), 0,
@@ -247,16 +282,16 @@ static const struct stratix10_gate_clock
1, 0, 0, 0, 0xDC, 27, 0},
{ STRATIX10_EMAC2_CLK, "emac2_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0xA4,
2, 0, 0, 0, 0xDC, 28, 0},
- { STRATIX10_EMAC_PTP_CLK, "emac_ptp_clk", "emac_ptp_free_clk", NULL, 1, 0, 0xA4,
- 3, 0, 0, 0, 0, 0, 0},
- { STRATIX10_GPIO_DB_CLK, "gpio_db_clk", "gpio_db_free_clk", NULL, 1, 0, 0xA4,
- 4, 0xE0, 0, 16, 0, 0, 0},
- { STRATIX10_SDMMC_CLK, "sdmmc_clk", "sdmmc_free_clk", NULL, 1, 0, 0xA4,
- 5, 0, 0, 0, 0, 0, 4},
- { STRATIX10_S2F_USER1_CLK, "s2f_user1_clk", "s2f_user1_free_clk", NULL, 1, 0, 0xA4,
- 6, 0, 0, 0, 0, 0, 0},
- { STRATIX10_PSI_REF_CLK, "psi_ref_clk", "psi_ref_free_clk", NULL, 1, 0, 0xA4,
- 7, 0, 0, 0, 0, 0, 0},
+ { STRATIX10_EMAC_PTP_CLK, "emac_ptp_clk", NULL, emac_ptp_mux, ARRAY_SIZE(emac_ptp_mux), 0, 0xA4,
+ 3, 0, 0, 0, 0xB0, 2, 0},
+ { STRATIX10_GPIO_DB_CLK, "gpio_db_clk", NULL, gpio_db_mux, ARRAY_SIZE(gpio_db_mux), 0, 0xA4,
+ 4, 0xE0, 0, 16, 0xB0, 3, 0},
+ { STRATIX10_SDMMC_CLK, "sdmmc_clk", NULL, sdmmc_mux, ARRAY_SIZE(sdmmc_mux), 0, 0xA4,
+ 5, 0, 0, 0, 0xB0, 4, 4},
+ { STRATIX10_S2F_USER1_CLK, "s2f_user1_clk", NULL, s2f_user1_mux, ARRAY_SIZE(s2f_user1_mux), 0, 0xA4,
+ 6, 0, 0, 0, 0xB0, 5, 0},
+ { STRATIX10_PSI_REF_CLK, "psi_ref_clk", NULL, psi_mux, ARRAY_SIZE(psi_mux), 0, 0xA4,
+ 7, 0, 0, 0, 0xB0, 6, 0},
{ STRATIX10_USB_CLK, "usb_clk", "l4_mp_clk", NULL, 1, 0, 0xA4,
8, 0, 0, 0, 0, 0, 0},
{ STRATIX10_SPI_M_CLK, "spi_m_clk", "l4_mp_clk", NULL, 1, 0, 0xA4,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 084/700] rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (82 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 083/700] clk: agilex/stratix10: fix bypass representation Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 085/700] iio: frequency: adf4350: disable reg and clk on error in adf4350_probe() Greg Kroah-Hartman
` (621 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Martin Fuzzey, Nobuhiro Iwamatsu,
Alexandre Belloni
From: Martin Fuzzey <martin.fuzzey@flowbird.group>
commit 950ac33dbe6ff656a623d862022f0762ec061ba7 upstream.
The STM32MP1 RTC may have 2 clocks, the pclk and the rtc_ck.
If clk_prepare_enable() fails for the second clock (rtc_ck) we must only
call clk_disable_unprepare() for the first clock (pclk) but currently we
call it on both leading to a WARN:
[ 15.629568] WARNING: CPU: 0 PID: 146 at drivers/clk/clk.c:958 clk_core_disable+0xb0/0xc8
[ 15.637620] ck_rtc already disabled
[ 15.663322] CPU: 0 PID: 146 Comm: systemd-udevd Not tainted 5.4.77-pknbsp-svn5759-atag-v5.4.77-204-gea4235203137-dirty #2413
[ 15.674510] Hardware name: STM32 (Device Tree Support)
[ 15.679658] [<c0111148>] (unwind_backtrace) from [<c010c0b8>] (show_stack+0x10/0x14)
[ 15.687371] [<c010c0b8>] (show_stack) from [<c0ab3d28>] (dump_stack+0xc0/0xe0)
[ 15.694574] [<c0ab3d28>] (dump_stack) from [<c012360c>] (__warn+0xc8/0xf0)
[ 15.701428] [<c012360c>] (__warn) from [<c0123694>] (warn_slowpath_fmt+0x60/0x94)
[ 15.708894] [<c0123694>] (warn_slowpath_fmt) from [<c053b518>] (clk_core_disable+0xb0/0xc8)
[ 15.717230] [<c053b518>] (clk_core_disable) from [<c053c190>] (clk_core_disable_lock+0x18/0x24)
[ 15.725924] [<c053c190>] (clk_core_disable_lock) from [<bf0adc44>] (stm32_rtc_probe+0x124/0x5e4 [rtc_stm32])
[ 15.735739] [<bf0adc44>] (stm32_rtc_probe [rtc_stm32]) from [<c05f7d4c>] (platform_drv_probe+0x48/0x98)
[ 15.745095] [<c05f7d4c>] (platform_drv_probe) from [<c05f5cec>] (really_probe+0x1f0/0x458)
[ 15.753338] [<c05f5cec>] (really_probe) from [<c05f61c4>] (driver_probe_device+0x70/0x1c4)
[ 15.761584] [<c05f61c4>] (driver_probe_device) from [<c05f6580>] (device_driver_attach+0x58/0x60)
[ 15.770439] [<c05f6580>] (device_driver_attach) from [<c05f6654>] (__driver_attach+0xcc/0x170)
[ 15.779032] [<c05f6654>] (__driver_attach) from [<c05f40d8>] (bus_for_each_dev+0x58/0x7c)
[ 15.787191] [<c05f40d8>] (bus_for_each_dev) from [<c05f4ffc>] (bus_add_driver+0xdc/0x1f8)
[ 15.795352] [<c05f4ffc>] (bus_add_driver) from [<c05f6ed8>] (driver_register+0x7c/0x110)
[ 15.803425] [<c05f6ed8>] (driver_register) from [<c01027bc>] (do_one_initcall+0x70/0x1b8)
[ 15.811588] [<c01027bc>] (do_one_initcall) from [<c01a1094>] (do_init_module+0x58/0x1f8)
[ 15.819660] [<c01a1094>] (do_init_module) from [<c01a0074>] (load_module+0x1e58/0x23c8)
[ 15.827646] [<c01a0074>] (load_module) from [<c01a0860>] (sys_finit_module+0xa0/0xd4)
[ 15.835459] [<c01a0860>] (sys_finit_module) from [<c01011e0>] (__sys_trace_return+0x0/0x20)
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Fixes: 4e64350f42e2 ("rtc: add STM32 RTC driver")
Cc: stable@vger.kernel.org
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1623087421-19722-1-git-send-email-martin.fuzzey@flowbird.group
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/rtc/rtc-stm32.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/rtc/rtc-stm32.c
+++ b/drivers/rtc/rtc-stm32.c
@@ -754,7 +754,7 @@ static int stm32_rtc_probe(struct platfo
ret = clk_prepare_enable(rtc->rtc_ck);
if (ret)
- goto err;
+ goto err_no_rtc_ck;
if (rtc->data->need_dbp)
regmap_update_bits(rtc->dbp, rtc->dbp_reg,
@@ -830,10 +830,12 @@ static int stm32_rtc_probe(struct platfo
}
return 0;
+
err:
+ clk_disable_unprepare(rtc->rtc_ck);
+err_no_rtc_ck:
if (rtc->data->has_pclk)
clk_disable_unprepare(rtc->pclk);
- clk_disable_unprepare(rtc->rtc_ck);
if (rtc->data->need_dbp)
regmap_update_bits(rtc->dbp, rtc->dbp_reg, rtc->dbp_mask, 0);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 085/700] iio: frequency: adf4350: disable reg and clk on error in adf4350_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (83 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 084/700] rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 086/700] iio: light: tcs3472: do not free unallocated IRQ Greg Kroah-Hartman
` (620 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
Linus Walleij, Stable, Jonathan Cameron
From: Yang Yingliang <yangyingliang@huawei.com>
commit c8cc4cf60b000fb9f4b29bed131fb6cf1fe42d67 upstream.
Disable reg and clk when devm_gpiod_get_optional() fails in adf4350_probe().
Fixes:4a89d2f47ccd ("iio: adf4350: Convert to use GPIO descriptor")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210601142605.3613605-1-yangyingliang@huawei.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/frequency/adf4350.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -563,8 +563,10 @@ static int adf4350_probe(struct spi_devi
st->lock_detect_gpiod = devm_gpiod_get_optional(&spi->dev, NULL,
GPIOD_IN);
- if (IS_ERR(st->lock_detect_gpiod))
- return PTR_ERR(st->lock_detect_gpiod);
+ if (IS_ERR(st->lock_detect_gpiod)) {
+ ret = PTR_ERR(st->lock_detect_gpiod);
+ goto error_disable_reg;
+ }
if (pdata->power_up_frequency) {
ret = adf4350_set_freq(st, pdata->power_up_frequency);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 086/700] iio: light: tcs3472: do not free unallocated IRQ
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (84 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 085/700] iio: frequency: adf4350: disable reg and clk on error in adf4350_probe() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 087/700] iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too Greg Kroah-Hartman
` (619 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, frank zago, Stable, Jonathan Cameron
From: frank zago <frank@zago.net>
commit 7cd04c863f9e1655d607705455e7714f24451984 upstream.
Allocating an IRQ is conditional to the IRQ existence, but freeing it
was not. If no IRQ was allocate, the driver would still try to free
IRQ 0. Add the missing checks.
This fixes the following trace when the driver is removed:
[ 100.667788] Trying to free already-free IRQ 0
[ 100.667793] WARNING: CPU: 0 PID: 2315 at kernel/irq/manage.c:1826 free_irq+0x1fd/0x370
...
[ 100.667914] Call Trace:
[ 100.667920] tcs3472_remove+0x3a/0x90 [tcs3472]
[ 100.667927] i2c_device_remove+0x2b/0xa0
Signed-off-by: frank zago <frank@zago.net>
Link: https://lore.kernel.org/r/20210427022017.19314-2-frank@zago.net
Fixes: 9d2f715d592e ("iio: light: tcs3472: support out-of-threshold events")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/light/tcs3472.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -531,7 +531,8 @@ static int tcs3472_probe(struct i2c_clie
return 0;
free_irq:
- free_irq(client->irq, indio_dev);
+ if (client->irq)
+ free_irq(client->irq, indio_dev);
buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
return ret;
@@ -559,7 +560,8 @@ static int tcs3472_remove(struct i2c_cli
struct iio_dev *indio_dev = i2c_get_clientdata(client);
iio_device_unregister(indio_dev);
- free_irq(client->irq, indio_dev);
+ if (client->irq)
+ free_irq(client->irq, indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
tcs3472_powerdown(iio_priv(indio_dev));
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 087/700] iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (85 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 086/700] iio: light: tcs3472: do not free unallocated IRQ Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 088/700] iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR Greg Kroah-Hartman
` (618 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Oliver Lang, Andy Shevchenko,
Marc Kleine-Budde, Stable, Jonathan Cameron, Nikita Travkin
From: Marc Kleine-Budde <mkl@pengutronix.de>
commit 2ac0b029a04b673ce83b5089368f467c5dca720c upstream.
The regmap is configured for 8 bit registers, uses a RB-Tree cache and
marks several registers as volatile (i.e. do not cache).
The ALS and PS data registers in the chip are 16 bit wide and spans
two regmap registers. In the current driver only the base register is
marked as volatile, resulting in the upper register only read once.
Further the data sheet notes:
| When the I2C read operation starts, all four ALS data registers are
| locked until the I2C read operation of register 0x8B is completed.
Which results in the registers never update after the 2nd read.
This patch fixes the problem by marking the upper 8 bits of the ALS
and PS registers as volatile, too.
Fixes: 2f2c96338afc ("iio: ltr501: Add regmap support.")
Reported-by: Oliver Lang <Oliver.Lang@gossenmetrawatt.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Tested-by: Nikita Travkin <nikita@trvn.ru> # ltr559
Link: https://lore.kernel.org/r/20210610134619.2101372-2-mkl@pengutronix.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/light/ltr501.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -32,9 +32,12 @@
#define LTR501_PART_ID 0x86
#define LTR501_MANUFAC_ID 0x87
#define LTR501_ALS_DATA1 0x88 /* 16-bit, little endian */
+#define LTR501_ALS_DATA1_UPPER 0x89 /* upper 8 bits of LTR501_ALS_DATA1 */
#define LTR501_ALS_DATA0 0x8a /* 16-bit, little endian */
+#define LTR501_ALS_DATA0_UPPER 0x8b /* upper 8 bits of LTR501_ALS_DATA0 */
#define LTR501_ALS_PS_STATUS 0x8c
#define LTR501_PS_DATA 0x8d /* 16-bit, little endian */
+#define LTR501_PS_DATA_UPPER 0x8e /* upper 8 bits of LTR501_PS_DATA */
#define LTR501_INTR 0x8f /* output mode, polarity, mode */
#define LTR501_PS_THRESH_UP 0x90 /* 11 bit, ps upper threshold */
#define LTR501_PS_THRESH_LOW 0x92 /* 11 bit, ps lower threshold */
@@ -1354,9 +1357,12 @@ static bool ltr501_is_volatile_reg(struc
{
switch (reg) {
case LTR501_ALS_DATA1:
+ case LTR501_ALS_DATA1_UPPER:
case LTR501_ALS_DATA0:
+ case LTR501_ALS_DATA0_UPPER:
case LTR501_ALS_PS_STATUS:
case LTR501_PS_DATA:
+ case LTR501_PS_DATA_UPPER:
return true;
default:
return false;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 088/700] iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (86 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 087/700] iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 089/700] iio: ltr501: ltr501_read_ps(): add missing endianness conversion Greg Kroah-Hartman
` (617 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Oliver Lang, Andy Shevchenko,
Marc Kleine-Budde, Stable, Jonathan Cameron, Nikita Travkin
From: Oliver Lang <Oliver.Lang@gossenmetrawatt.com>
commit 421a26f3d7a7c3ca43f3a9dc0f3cb0f562d5bd95 upstream.
The ltr559 chip uses only the lowest bit of the ALS_CONTR register to
configure between active and stand-by mode. In the original driver
BIT(1) is used, which does a software reset instead.
This patch fixes the problem by using BIT(0) as als_mode_active for
the ltr559 chip.
Fixes: 8592a7eefa54 ("iio: ltr501: Add support for ltr559 chip")
Signed-off-by: Oliver Lang <Oliver.Lang@gossenmetrawatt.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Tested-by: Nikita Travkin <nikita@trvn.ru> # ltr559
Link: https://lore.kernel.org/r/20210610134619.2101372-3-mkl@pengutronix.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/light/ltr501.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1208,7 +1208,7 @@ static struct ltr501_chip_info ltr501_ch
.als_gain_tbl_size = ARRAY_SIZE(ltr559_als_gain_tbl),
.ps_gain = ltr559_ps_gain_tbl,
.ps_gain_tbl_size = ARRAY_SIZE(ltr559_ps_gain_tbl),
- .als_mode_active = BIT(1),
+ .als_mode_active = BIT(0),
.als_gain_mask = BIT(2) | BIT(3) | BIT(4),
.als_gain_shift = 2,
.info = <r501_info,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 089/700] iio: ltr501: ltr501_read_ps(): add missing endianness conversion
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (87 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 088/700] iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 090/700] iio: accel: bma180: Fix BMA25x bandwidth register values Greg Kroah-Hartman
` (616 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Oliver Lang, Andy Shevchenko,
Marc Kleine-Budde, Stable, Jonathan Cameron, Nikita Travkin
From: Oliver Lang <Oliver.Lang@gossenmetrawatt.com>
commit 71b33f6f93ef9462c84560e2236ed22209d26a58 upstream.
The PS ADC Channel data is spread over 2 registers in little-endian
form. This patch adds the missing endianness conversion.
Fixes: 2690be905123 ("iio: Add Lite-On ltr501 ambient light / proximity sensor driver")
Signed-off-by: Oliver Lang <Oliver.Lang@gossenmetrawatt.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Tested-by: Nikita Travkin <nikita@trvn.ru> # ltr559
Link: https://lore.kernel.org/r/20210610134619.2101372-4-mkl@pengutronix.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/light/ltr501.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -409,18 +409,19 @@ static int ltr501_read_als(const struct
static int ltr501_read_ps(const struct ltr501_data *data)
{
- int ret, status;
+ __le16 status;
+ int ret;
ret = ltr501_drdy(data, LTR501_STATUS_PS_RDY);
if (ret < 0)
return ret;
ret = regmap_bulk_read(data->regmap, LTR501_PS_DATA,
- &status, 2);
+ &status, sizeof(status));
if (ret < 0)
return ret;
- return status;
+ return le16_to_cpu(status);
}
static int ltr501_read_intr_prst(const struct ltr501_data *data,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 090/700] iio: accel: bma180: Fix BMA25x bandwidth register values
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (88 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 089/700] iio: ltr501: ltr501_read_ps(): add missing endianness conversion Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 091/700] iio: accel: bmc150: Fix bma222 scale unit Greg Kroah-Hartman
` (615 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Meerwald, Stephan Gerhold,
Linus Walleij, Stable, Jonathan Cameron
From: Stephan Gerhold <stephan@gerhold.net>
commit 8090d67421ddab0ae932abab5a60200598bf0bbb upstream.
According to the BMA253 datasheet [1] and BMA250 datasheet [2] the
bandwidth value for BMA25x should be set as 01xxx:
"Settings 00xxx result in a bandwidth of 7.81 Hz; [...]
It is recommended [...] to use the range from ´01000b´ to ´01111b´
only in order to be compatible with future products."
However, at the moment the drivers sets bandwidth values from 0 to 6,
which is not recommended and always results into 7.81 Hz bandwidth
according to the datasheet.
Fix this by introducing a bw_offset = 8 = 01000b for BMA25x,
so the additional bit is always set for BMA25x.
[1]: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bma253-ds000.pdf
[2]: https://datasheet.octopart.com/BMA250-Bosch-datasheet-15540103.pdf
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Fixes: 2017cff24cc0 ("iio:bma180: Add BMA250 chip support")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210526094408.34298-2-stephan@gerhold.net
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/accel/bma180.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -55,7 +55,7 @@ struct bma180_part_info {
u8 int_reset_reg, int_reset_mask;
u8 sleep_reg, sleep_mask;
- u8 bw_reg, bw_mask;
+ u8 bw_reg, bw_mask, bw_offset;
u8 scale_reg, scale_mask;
u8 power_reg, power_mask, lowpower_val;
u8 int_enable_reg, int_enable_mask;
@@ -127,6 +127,7 @@ struct bma180_part_info {
#define BMA250_RANGE_MASK GENMASK(3, 0) /* Range of accel values */
#define BMA250_BW_MASK GENMASK(4, 0) /* Accel bandwidth */
+#define BMA250_BW_OFFSET 8
#define BMA250_SUSPEND_MASK BIT(7) /* chip will sleep */
#define BMA250_LOWPOWER_MASK BIT(6)
#define BMA250_DATA_INTEN_MASK BIT(4)
@@ -143,6 +144,7 @@ struct bma180_part_info {
#define BMA254_RANGE_MASK GENMASK(3, 0) /* Range of accel values */
#define BMA254_BW_MASK GENMASK(4, 0) /* Accel bandwidth */
+#define BMA254_BW_OFFSET 8
#define BMA254_SUSPEND_MASK BIT(7) /* chip will sleep */
#define BMA254_LOWPOWER_MASK BIT(6)
#define BMA254_DATA_INTEN_MASK BIT(4)
@@ -283,7 +285,8 @@ static int bma180_set_bw(struct bma180_d
for (i = 0; i < data->part_info->num_bw; ++i) {
if (data->part_info->bw_table[i] == val) {
ret = bma180_set_bits(data, data->part_info->bw_reg,
- data->part_info->bw_mask, i);
+ data->part_info->bw_mask,
+ i + data->part_info->bw_offset);
if (ret) {
dev_err(&data->client->dev,
"failed to set bandwidth\n");
@@ -876,6 +879,7 @@ static const struct bma180_part_info bma
.sleep_mask = BMA250_SUSPEND_MASK,
.bw_reg = BMA250_BW_REG,
.bw_mask = BMA250_BW_MASK,
+ .bw_offset = BMA250_BW_OFFSET,
.scale_reg = BMA250_RANGE_REG,
.scale_mask = BMA250_RANGE_MASK,
.power_reg = BMA250_POWER_REG,
@@ -905,6 +909,7 @@ static const struct bma180_part_info bma
.sleep_mask = BMA254_SUSPEND_MASK,
.bw_reg = BMA254_BW_REG,
.bw_mask = BMA254_BW_MASK,
+ .bw_offset = BMA254_BW_OFFSET,
.scale_reg = BMA254_RANGE_REG,
.scale_mask = BMA254_RANGE_MASK,
.power_reg = BMA254_POWER_REG,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 091/700] iio: accel: bmc150: Fix bma222 scale unit
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (89 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 090/700] iio: accel: bma180: Fix BMA25x bandwidth register values Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 092/700] iio: accel: bmc150: Fix dereferencing the wrong pointer in bmc150_get/set_second_device Greg Kroah-Hartman
` (614 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Linus Walleij, Stephan Gerhold,
Stable, Jonathan Cameron
From: Stephan Gerhold <stephan@gerhold.net>
commit 6e2a90af0b8d757e850cc023d761ee9a9492e2fe upstream.
According to sysfs-bus-iio documentation the unit for accelerometer
values after applying scale/offset should be m/s^2, not g, which explains
why the scale values for the other variants in bmc150-accel do not match
exactly the values given in the datasheet.
To get the correct values, we need to multiply the BMA222 scale values
by g = 9.80665 m/s^2.
Fixes: a1a210bf29a1 ("iio: accel: bmc150-accel: Add support for BMA222")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210611080903.14384-2-stephan@gerhold.net
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/accel/bmc150-accel-core.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1171,11 +1171,12 @@ static const struct bmc150_accel_chip_in
/*
* The datasheet page 17 says:
* 15.6, 31.3, 62.5 and 125 mg per LSB.
+ * IIO unit is m/s^2 so multiply by g = 9.80665 m/s^2.
*/
- .scale_table = { {156000, BMC150_ACCEL_DEF_RANGE_2G},
- {313000, BMC150_ACCEL_DEF_RANGE_4G},
- {625000, BMC150_ACCEL_DEF_RANGE_8G},
- {1250000, BMC150_ACCEL_DEF_RANGE_16G} },
+ .scale_table = { {152984, BMC150_ACCEL_DEF_RANGE_2G},
+ {306948, BMC150_ACCEL_DEF_RANGE_4G},
+ {612916, BMC150_ACCEL_DEF_RANGE_8G},
+ {1225831, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma222e] = {
.name = "BMA222E",
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 092/700] iio: accel: bmc150: Fix dereferencing the wrong pointer in bmc150_get/set_second_device
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (90 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 091/700] iio: accel: bmc150: Fix bma222 scale unit Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 093/700] iio: accel: bmc150: Dont make the remove function of the second accelerometer unregister itself Greg Kroah-Hartman
` (613 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jeremy Cline, Hans de Goede,
Andy Shevchenko, Stable, Jonathan Cameron
From: Hans de Goede <hdegoede@redhat.com>
commit f2bf22dc9ea8ead180fc0221874bd556bf1d2685 upstream.
The drvdata for iio-parent devices points to the struct iio_dev for
the iio-device. So by directly casting the return from i2c_get_clientdata()
to struct bmc150_accel_data * the code was ending up storing the second_dev
pointer in (and retrieving it from) some semi-random offset inside
struct iio_dev, rather then storing it in the second_dev member of the
bmc150_accel_data struct.
Fix the code to get the struct bmc150_accel_data * pointer to call
iio_priv() on the struct iio_dev * returned by i2c_get_clientdata(),
so that the correct pointer gets dereferenced.
This fixes the following oops on rmmod, caused by trying to
dereference the wrong return of bmc150_get_second_device():
[ 238.980737] BUG: unable to handle page fault for address: 0000000000004710
[ 238.980755] #PF: supervisor read access in kernel mode
[ 238.980760] #PF: error_code(0x0000) - not-present page
...
[ 238.980841] i2c_unregister_device.part.0+0x19/0x60
[ 238.980856] 0xffffffffc0815016
[ 238.980863] i2c_device_remove+0x25/0xb0
[ 238.980869] __device_release_driver+0x180/0x240
[ 238.980876] driver_detach+0xd4/0x120
[ 238.980882] bus_remove_driver+0x5b/0xd0
[ 238.980888] i2c_del_driver+0x44/0x70
While at it also remove the now no longer sensible checks for data
being NULL, iio_priv never returns NULL for an iio_dev with non 0
sized private-data.
Fixes: 5bfb3a4bd8f6 ("iio: accel: bmc150: Check for a second ACPI device for BOSC0200")
Cc: Jeremy Cline <jeremy@jcline.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/accel/bmc150-accel-core.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1805,10 +1805,7 @@ EXPORT_SYMBOL_GPL(bmc150_accel_core_prob
struct i2c_client *bmc150_get_second_device(struct i2c_client *client)
{
- struct bmc150_accel_data *data = i2c_get_clientdata(client);
-
- if (!data)
- return NULL;
+ struct bmc150_accel_data *data = iio_priv(i2c_get_clientdata(client));
return data->second_device;
}
@@ -1816,10 +1813,9 @@ EXPORT_SYMBOL_GPL(bmc150_get_second_devi
void bmc150_set_second_device(struct i2c_client *client)
{
- struct bmc150_accel_data *data = i2c_get_clientdata(client);
+ struct bmc150_accel_data *data = iio_priv(i2c_get_clientdata(client));
- if (data)
- data->second_device = client;
+ data->second_device = client;
}
EXPORT_SYMBOL_GPL(bmc150_set_second_device);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 093/700] iio: accel: bmc150: Dont make the remove function of the second accelerometer unregister itself
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (91 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 092/700] iio: accel: bmc150: Fix dereferencing the wrong pointer in bmc150_get/set_second_device Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 094/700] serial: mvebu-uart: fix calculation of clock divisor Greg Kroah-Hartman
` (612 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jeremy Cline, Hans de Goede,
Andy Shevchenko, Stable, Jonathan Cameron
From: Hans de Goede <hdegoede@redhat.com>
commit f407e2dca0f559621114eeaf657880d83f237fbd upstream.
On machines with dual accelerometers described in a single ACPI fwnode,
the bmc150_accel_probe() instantiates a second i2c-client for the second
accelerometer.
A pointer to this manually instantiated second i2c-client is stored
inside the iio_dev's private-data through bmc150_set_second_device(),
so that the i2c-client can be unregistered from bmc150_accel_remove().
Before this commit bmc150_set_second_device() took only 1 argument so it
would store the pointer in private-data of the iio_dev belonging to the
manually instantiated i2c-client, leading to the bmc150_accel_remove()
call for the second_dev trying to unregister *itself* while it was
being removed, leading to a deadlock and rmmod hanging.
Change bmc150_set_second_device() to take 2 arguments: 1. The i2c-client
which is instantiating the second i2c-client for the 2nd accelerometer and
2. The second-device pointer itself (which also is an i2c-client).
This will store the second_device pointer in the private data of the
iio_dev belonging to the (ACPI instantiated) i2c-client for the first
accelerometer and will make bmc150_accel_remove() unregister the
second_device i2c-client when called for the first client,
avoiding the deadlock.
Fixes: 5bfb3a4bd8f6 ("iio: accel: bmc150: Check for a second ACPI device for BOSC0200")
Cc: Jeremy Cline <jeremy@jcline.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iio/accel/bmc150-accel-core.c | 4 ++--
drivers/iio/accel/bmc150-accel-i2c.c | 2 +-
drivers/iio/accel/bmc150-accel.h | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1811,11 +1811,11 @@ struct i2c_client *bmc150_get_second_dev
}
EXPORT_SYMBOL_GPL(bmc150_get_second_device);
-void bmc150_set_second_device(struct i2c_client *client)
+void bmc150_set_second_device(struct i2c_client *client, struct i2c_client *second_dev)
{
struct bmc150_accel_data *data = iio_priv(i2c_get_clientdata(client));
- data->second_device = client;
+ data->second_device = second_dev;
}
EXPORT_SYMBOL_GPL(bmc150_set_second_device);
--- a/drivers/iio/accel/bmc150-accel-i2c.c
+++ b/drivers/iio/accel/bmc150-accel-i2c.c
@@ -70,7 +70,7 @@ static int bmc150_accel_probe(struct i2c
second_dev = i2c_acpi_new_device(&client->dev, 1, &board_info);
if (!IS_ERR(second_dev))
- bmc150_set_second_device(second_dev);
+ bmc150_set_second_device(client, second_dev);
}
#endif
--- a/drivers/iio/accel/bmc150-accel.h
+++ b/drivers/iio/accel/bmc150-accel.h
@@ -18,7 +18,7 @@ int bmc150_accel_core_probe(struct devic
const char *name, bool block_supported);
int bmc150_accel_core_remove(struct device *dev);
struct i2c_client *bmc150_get_second_device(struct i2c_client *second_device);
-void bmc150_set_second_device(struct i2c_client *second_device);
+void bmc150_set_second_device(struct i2c_client *client, struct i2c_client *second_dev);
extern const struct dev_pm_ops bmc150_accel_pm_ops;
extern const struct regmap_config bmc150_regmap_conf;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 094/700] serial: mvebu-uart: fix calculation of clock divisor
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (92 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 093/700] iio: accel: bmc150: Dont make the remove function of the second accelerometer unregister itself Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 095/700] serial: sh-sci: Stop dmaengine transfer in sci_stop_tx() Greg Kroah-Hartman
` (611 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pali Rohár
From: Pali Rohár <pali@kernel.org>
commit 9078204ca5c33ba20443a8623a41a68a9995a70d upstream.
The clock divisor should be rounded to the closest value.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 68a0db1d7da2 ("serial: mvebu-uart: add function to change baudrate")
Cc: stable@vger.kernel.org # 0e4cf69ede87 ("serial: mvebu-uart: clarify the baud rate derivation")
Link: https://lore.kernel.org/r/20210624224909.6350-2-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/mvebu-uart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -463,7 +463,7 @@ static int mvebu_uart_baud_rate_set(stru
* makes use of D to configure the desired baudrate.
*/
m_divisor = OSAMP_DEFAULT_DIVISOR;
- d_divisor = DIV_ROUND_UP(port->uartclk, baud * m_divisor);
+ d_divisor = DIV_ROUND_CLOSEST(port->uartclk, baud * m_divisor);
brdv = readl(port->membase + UART_BRDV);
brdv &= ~BRDV_BAUD_MASK;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 095/700] serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (93 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 094/700] serial: mvebu-uart: fix calculation of clock divisor Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:02 ` [PATCH 5.12 096/700] serial_cs: Add Option International GSM-Ready 56K/ISDN modem Greg Kroah-Hartman
` (610 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Yoshihiro Shimoda
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
commit 08a84410a04f05c7c1b8e833f552416d8eb9f6fe upstream.
Stop dmaengine transfer in sci_stop_tx(). Otherwise, the following
message is possible output when system enters suspend and while
transferring data, because clearing TIE bit in SCSCR is not able to
stop any dmaengine transfer.
sh-sci e6550000.serial: ttySC1: Unable to drain transmitter
Note that this driver has already used some #ifdef in the .c file
so that this patch also uses #ifdef to fix the issue. Otherwise,
build errors happens if the CONFIG_SERIAL_SH_SCI_DMA is disabled.
Fixes: 73a19e4c0301 ("serial: sh-sci: Add DMA support.")
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210610110806.277932-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/sh-sci.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -610,6 +610,14 @@ static void sci_stop_tx(struct uart_port
ctrl &= ~SCSCR_TIE;
serial_port_out(port, SCSCR, ctrl);
+
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
+ if (to_sci_port(port)->chan_tx &&
+ !dma_submit_error(to_sci_port(port)->cookie_tx)) {
+ dmaengine_terminate_async(to_sci_port(port)->chan_tx);
+ to_sci_port(port)->cookie_tx = -EINVAL;
+ }
+#endif
}
static void sci_start_rx(struct uart_port *port)
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 096/700] serial_cs: Add Option International GSM-Ready 56K/ISDN modem
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (94 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 095/700] serial: sh-sci: Stop dmaengine transfer in sci_stop_tx() Greg Kroah-Hartman
@ 2021-07-12 6:02 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 097/700] serial_cs: remove wrong GLOBETROTTER.cis entry Greg Kroah-Hartman
` (609 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Ondrej Zary
From: Ondrej Zary <linux@zary.sk>
commit d495dd743d5ecd47288156e25c4d9163294a0992 upstream.
Add support for Option International GSM-Ready 56K/ISDN PCMCIA modem
card.
Signed-off-by: Ondrej Zary <linux@zary.sk>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210611201940.23898-2-linux@zary.sk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/8250/serial_cs.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -777,6 +777,7 @@ static const struct pcmcia_device_id ser
PCMCIA_DEVICE_PROD_ID12("Multi-Tech", "MT2834LT", 0x5f73be51, 0x4cd7c09e),
PCMCIA_DEVICE_PROD_ID12("OEM ", "C288MX ", 0xb572d360, 0xd2385b7a),
PCMCIA_DEVICE_PROD_ID12("Option International", "V34bis GSM/PSTN Data/Fax Modem", 0x9d7cd6f5, 0x5cb8bf41),
+ PCMCIA_DEVICE_PROD_ID12("Option International", "GSM-Ready 56K/ISDN", 0x9d7cd6f5, 0xb23844aa),
PCMCIA_DEVICE_PROD_ID12("PCMCIA ", "C336MX ", 0x99bcafe9, 0xaa25bcab),
PCMCIA_DEVICE_PROD_ID12("Quatech Inc", "PCMCIA Dual RS-232 Serial Port Card", 0xc4420b35, 0x92abc92f),
PCMCIA_DEVICE_PROD_ID12("Quatech Inc", "Dual RS-232 Serial Port PC Card", 0xc4420b35, 0x031a380d),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 097/700] serial_cs: remove wrong GLOBETROTTER.cis entry
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (95 preceding siblings ...)
2021-07-12 6:02 ` [PATCH 5.12 096/700] serial_cs: Add Option International GSM-Ready 56K/ISDN modem Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 098/700] ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() Greg Kroah-Hartman
` (608 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Ondrej Zary
From: Ondrej Zary <linux@zary.sk>
commit 11b1d881a90fc184cc7d06e9804eb288c24a2a0d upstream.
The GLOBETROTTER.cis entry in serial_cs matches more devices than
intended and breaks them. Remove it.
Example: # pccardctl info
PRODID_1="Option International
"
PRODID_2="GSM-Ready 56K/ISDN
"
PRODID_3="021
"
PRODID_4="A
"
MANFID=0013,0000
FUNCID=0
result:
pcmcia 0.0: Direct firmware load for cis/GLOBETROTTER.cis failed with error -2
The GLOBETROTTER.cis is nowhere to be found. There's GLOBETROTTER.cis.ihex at
https://netdev.vger.kernel.narkive.com/h4inqdxM/patch-axnet-cs-fix-phy-id-detection-for-bogus-asix-chip#post41
It's from completely diffetent card:
vers_1 4.1, "Option International", "GSM/GPRS GlobeTrotter", "001", "A"
Signed-off-by: Ondrej Zary <linux@zary.sk>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210611201940.23898-1-linux@zary.sk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/8250/serial_cs.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -805,7 +805,6 @@ static const struct pcmcia_device_id ser
PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-4", 0x96913a85, 0xcec8f102, "cis/COMpad4.cis"),
PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.cis"),
- PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL CARD: SL100 1.00.", 0x19ca78af, 0xf964f42b),
PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL CARD: SL100", 0x19ca78af, 0x71d98e83),
PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.", "SERIAL CARD: SL232 1.00.", 0x19ca78af, 0x69fb7490),
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 098/700] ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (96 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 097/700] serial_cs: remove wrong GLOBETROTTER.cis entry Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 099/700] ssb: sdio: Dont overwrite const buffer if block_write fails Greg Kroah-Hartman
` (607 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pali Rohár, Kalle Valo
From: Pali Rohár <pali@kernel.org>
commit fb312ac5ccb007e843f982b38d4d6886ba4b32f2 upstream.
I got this crash more times during debugging of PCIe controller and crash
happens somehow at the time when PCIe kernel code started link retraining (as
part of ASPM code) when at the same time PCIe link went down and ath9k probably
executed hw reset procedure.
Currently I'm not able to reproduce this issue as it looks like to be
some race condition between link training, ASPM, link down and reset
path. And as always, race conditions which depends on more input
parameters are hard to reproduce as it depends on precise timings.
But it is clear that pointers are zero in this case and should be
properly filled as same code pattern is used in ath9k_stop() function.
Anyway I was able to reproduce this crash by manually triggering ath
reset worker prior putting card up. I created simple patch to export
reset functionality via debugfs and use it to "simulate" of triggering
reset. s proved that NULL-pointer dereference issue is there.
Function ath9k_hw_reset() is dereferencing chan structure pointer, so it
needs to be non-NULL pointer.
Function ath9k_stop() already contains code which sets ah->curchan to valid
non-NULL pointer prior calling ath9k_hw_reset() function.
Add same code pattern also into ath_reset_internal() function to prevent
kernel NULL pointer dereference in ath9k_hw_reset() function.
This change fixes kernel NULL pointer dereference in ath9k_hw_reset() which
is caused by calling ath9k_hw_reset() from ath_reset_internal() with NULL
chan structure.
[ 45.334305] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
[ 45.344417] Mem abort info:
[ 45.347301] ESR = 0x96000005
[ 45.350448] EC = 0x25: DABT (current EL), IL = 32 bits
[ 45.356166] SET = 0, FnV = 0
[ 45.359350] EA = 0, S1PTW = 0
[ 45.362596] Data abort info:
[ 45.365756] ISV = 0, ISS = 0x00000005
[ 45.369735] CM = 0, WnR = 0
[ 45.372814] user pgtable: 4k pages, 39-bit VAs, pgdp=000000000685d000
[ 45.379663] [0000000000000008] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000
[ 45.388856] Internal error: Oops: 96000005 [#1] SMP
[ 45.393897] Modules linked in: ath9k ath9k_common ath9k_hw
[ 45.399574] CPU: 1 PID: 309 Comm: kworker/u4:2 Not tainted 5.12.0-rc2-dirty #785
[ 45.414746] Workqueue: phy0 ath_reset_work [ath9k]
[ 45.419713] pstate: 40000005 (nZcv daif -PAN -UAO -TCO BTYPE=--)
[ 45.425910] pc : ath9k_hw_reset+0xc4/0x1c48 [ath9k_hw]
[ 45.431234] lr : ath9k_hw_reset+0xc0/0x1c48 [ath9k_hw]
[ 45.436548] sp : ffffffc0118dbca0
[ 45.439961] x29: ffffffc0118dbca0 x28: 0000000000000000
[ 45.445442] x27: ffffff800dee4080 x26: 0000000000000000
[ 45.450923] x25: ffffff800df9b9d8 x24: 0000000000000000
[ 45.456404] x23: ffffffc0115f6000 x22: ffffffc008d0d408
[ 45.461885] x21: ffffff800dee5080 x20: ffffff800df9b9d8
[ 45.467366] x19: 0000000000000000 x18: 0000000000000000
[ 45.472846] x17: 0000000000000000 x16: 0000000000000000
[ 45.478326] x15: 0000000000000010 x14: ffffffffffffffff
[ 45.483807] x13: ffffffc0918db94f x12: ffffffc011498720
[ 45.489289] x11: 0000000000000003 x10: ffffffc0114806e0
[ 45.494770] x9 : ffffffc01014b2ec x8 : 0000000000017fe8
[ 45.500251] x7 : c0000000ffffefff x6 : 0000000000000001
[ 45.505733] x5 : 0000000000000000 x4 : 0000000000000000
[ 45.511213] x3 : 0000000000000000 x2 : ffffff801fece870
[ 45.516693] x1 : ffffffc00eded000 x0 : 000000000000003f
[ 45.522174] Call trace:
[ 45.524695] ath9k_hw_reset+0xc4/0x1c48 [ath9k_hw]
[ 45.529653] ath_reset_internal+0x1a8/0x2b8 [ath9k]
[ 45.534696] ath_reset_work+0x2c/0x40 [ath9k]
[ 45.539198] process_one_work+0x210/0x480
[ 45.543339] worker_thread+0x5c/0x510
[ 45.547115] kthread+0x12c/0x130
[ 45.550445] ret_from_fork+0x10/0x1c
[ 45.554138] Code: 910922c2 9117e021 95ff0398 b4000294 (b9400a61)
[ 45.560430] ---[ end trace 566410ba90b50e8b ]---
[ 45.565193] Kernel panic - not syncing: Oops: Fatal exception in interrupt
[ 45.572282] SMP: stopping secondary CPUs
[ 45.576331] Kernel Offset: disabled
[ 45.579924] CPU features: 0x00040002,0000200c
[ 45.584416] Memory Limit: none
[ 45.587564] Rebooting in 3 seconds..
Signed-off-by: Pali Rohár <pali@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210402122653.24014-1-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/ath/ath9k/main.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -307,6 +307,11 @@ static int ath_reset_internal(struct ath
hchan = ah->curchan;
}
+ if (!hchan) {
+ fastcc = false;
+ hchan = ath9k_cmn_get_channel(sc->hw, ah, &sc->cur_chan->chandef);
+ }
+
if (!ath_prepare_reset(sc))
fastcc = false;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 099/700] ssb: sdio: Dont overwrite const buffer if block_write fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (97 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 098/700] ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 100/700] rsi: Assign beacon rate settings to the correct rate_info descriptor field Greg Kroah-Hartman
` (606 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Michael Büsch, Kalle Valo
From: Michael Buesch <m@bues.ch>
commit 47ec636f7a25aa2549e198c48ecb6b1c25d05456 upstream.
It doesn't make sense to clobber the const driver-side buffer, if a
write-to-device attempt failed. All other SSB variants (PCI, PCMCIA and SoC)
also don't corrupt the buffer on any failure in block_write.
Therefore, remove this memset from the SDIO variant.
Signed-off-by: Michael Büsch <m@bues.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210515210252.318be2ba@wiggum
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/ssb/sdio.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/ssb/sdio.c
+++ b/drivers/ssb/sdio.c
@@ -411,7 +411,6 @@ static void ssb_sdio_block_write(struct
sdio_claim_host(bus->host_sdio);
if (unlikely(ssb_sdio_switch_core(bus, dev))) {
error = -EIO;
- memset((void *)buffer, 0xff, count);
goto err_out;
}
offset |= bus->sdio_sbaddr & 0xffff;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 100/700] rsi: Assign beacon rate settings to the correct rate_info descriptor field
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (98 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 099/700] ssb: sdio: Dont overwrite const buffer if block_write fails Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 101/700] rsi: fix AP mode with WPA failure due to encrypted EAPOL Greg Kroah-Hartman
` (605 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Marek Vasut, Amitkumar Karwar,
Angus Ainslie, David S. Miller, Jakub Kicinski, Kalle Valo,
Karun Eagalapati, Martin Kepplinger, Prameela Rani Garnepudi,
Sebastian Krzyszkowiak, Siva Rebbagondla, netdev
From: Marek Vasut <marex@denx.de>
commit b1c3a24897bd528f2f4fda9fea7da08a84ae25b6 upstream.
The RSI_RATE_x bits must be assigned to struct rsi_data_desc rate_info
field. The rest of the driver does it correctly, except this one place,
so fix it. This is also aligned with the RSI downstream vendor driver.
Without this patch, an AP operating at 5 GHz does not transmit any
beacons at all, this patch fixes that.
Fixes: d26a9559403c ("rsi: add beacon changes for AP mode")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Cc: Angus Ainslie <angus@akkea.ca>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Karun Eagalapati <karun256@gmail.com>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210507213105.140138-1-marex@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/rsi/rsi_91x_hal.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/rsi/rsi_91x_hal.c
+++ b/drivers/net/wireless/rsi/rsi_91x_hal.c
@@ -470,9 +470,9 @@ int rsi_prepare_beacon(struct rsi_common
}
if (common->band == NL80211_BAND_2GHZ)
- bcn_frm->bbp_info |= cpu_to_le16(RSI_RATE_1);
+ bcn_frm->rate_info |= cpu_to_le16(RSI_RATE_1);
else
- bcn_frm->bbp_info |= cpu_to_le16(RSI_RATE_6);
+ bcn_frm->rate_info |= cpu_to_le16(RSI_RATE_6);
if (mac_bcn->data[tim_offset + 2] == 0)
bcn_frm->frame_info |= cpu_to_le16(RSI_DATA_DESC_DTIM_BEACON);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 101/700] rsi: fix AP mode with WPA failure due to encrypted EAPOL
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (99 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 100/700] rsi: Assign beacon rate settings to the correct rate_info descriptor field Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 102/700] tracing/histograms: Fix parsing of "sym-offset" modifier Greg Kroah-Hartman
` (604 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Martin Fuzzey, Kalle Valo
From: Martin Fuzzey <martin.fuzzey@flowbird.group>
commit 314538041b5632ffaf64798faaeabaf2793fe029 upstream.
In AP mode WPA2-PSK connections were not established.
The reason was that the AP was sending the first message
of the 4 way handshake encrypted, even though no pairwise
key had (correctly) yet been set.
Encryption was enabled if the "security_enable" driver flag
was set and encryption was not explicitly disabled by
IEEE80211_TX_INTFL_DONT_ENCRYPT.
However security_enable was set when *any* key, including
the AP GTK key, had been set which was causing unwanted
encryption even if no key was avaialble for the unicast
packet to be sent.
Fix this by adding a check that we have a key and drop
the old security_enable driver flag which is insufficient
and redundant.
The Redpine downstream out of tree driver does it this way too.
Regarding the Fixes tag the actual code being modified was
introduced earlier, with the original driver submission, in
dad0d04fa7ba ("rsi: Add RS9113 wireless driver"), however
at that time AP mode was not yet supported so there was
no bug at that point.
So I have tagged the introduction of AP support instead
which was part of the patch set "rsi: support for AP mode" [1]
It is not clear whether AP WPA has ever worked, I can see nothing
on the kernel side that broke it afterwards yet the AP support
patch series says "Tests are performed to confirm aggregation,
connections in WEP and WPA/WPA2 security."
One possibility is that the initial tests were done with a modified
userspace (hostapd).
[1] https://www.spinics.net/lists/linux-wireless/msg165302.html
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
Fixes: 38ef62353acb ("rsi: security enhancements for AP mode")
CC: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1622564459-24430-1-git-send-email-martin.fuzzey@flowbird.group
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/rsi/rsi_91x_hal.c | 2 +-
drivers/net/wireless/rsi/rsi_91x_mac80211.c | 3 ---
drivers/net/wireless/rsi/rsi_91x_mgmt.c | 3 +--
drivers/net/wireless/rsi/rsi_main.h | 1 -
4 files changed, 2 insertions(+), 7 deletions(-)
--- a/drivers/net/wireless/rsi/rsi_91x_hal.c
+++ b/drivers/net/wireless/rsi/rsi_91x_hal.c
@@ -203,7 +203,7 @@ int rsi_prepare_data_desc(struct rsi_com
wh->frame_control |= cpu_to_le16(RSI_SET_PS_ENABLE);
if ((!(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) &&
- (common->secinfo.security_enable)) {
+ info->control.hw_key) {
if (rsi_is_cipher_wep(common))
ieee80211_size += 4;
else
--- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
@@ -1028,7 +1028,6 @@ static int rsi_mac80211_set_key(struct i
mutex_lock(&common->mutex);
switch (cmd) {
case SET_KEY:
- secinfo->security_enable = true;
status = rsi_hal_key_config(hw, vif, key, sta);
if (status) {
mutex_unlock(&common->mutex);
@@ -1047,8 +1046,6 @@ static int rsi_mac80211_set_key(struct i
break;
case DISABLE_KEY:
- if (vif->type == NL80211_IFTYPE_STATION)
- secinfo->security_enable = false;
rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__);
memset(key, 0, sizeof(struct ieee80211_key_conf));
status = rsi_hal_key_config(hw, vif, key, sta);
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -1803,8 +1803,7 @@ int rsi_send_wowlan_request(struct rsi_c
RSI_WIFI_MGMT_Q);
cmd_frame->desc.desc_dword0.frame_type = WOWLAN_CONFIG_PARAMS;
cmd_frame->host_sleep_status = sleep_status;
- if (common->secinfo.security_enable &&
- common->secinfo.gtk_cipher)
+ if (common->secinfo.gtk_cipher)
flags |= RSI_WOW_GTK_REKEY;
if (sleep_status)
cmd_frame->wow_flags = flags;
--- a/drivers/net/wireless/rsi/rsi_main.h
+++ b/drivers/net/wireless/rsi/rsi_main.h
@@ -151,7 +151,6 @@ enum edca_queue {
};
struct security_info {
- bool security_enable;
u32 ptk_cipher;
u32 gtk_cipher;
};
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 102/700] tracing/histograms: Fix parsing of "sym-offset" modifier
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (100 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 101/700] rsi: fix AP mode with WPA failure due to encrypted EAPOL Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 103/700] tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing Greg Kroah-Hartman
` (603 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ingo Molnar, Andrew Morton,
Masami Hiramatsu, Namhyung Kim, Daniel Bristot de Oliveira,
Tom Zanussi, Steven Rostedt (VMware)
From: Steven Rostedt (VMware) <rostedt@goodmis.org>
commit 26c563731056c3ee66f91106c3078a8c36bb7a9e upstream.
With the addition of simple mathematical operations (plus and minus), the
parsing of the "sym-offset" modifier broke, as it took the '-' part of the
"sym-offset" as a minus, and tried to break it up into a mathematical
operation of "field.sym - offset", in which case it failed to parse
(unless the event had a field called "offset").
Both .sym and .sym-offset modifiers should not be entered into
mathematical calculations anyway. If ".sym-offset" is found in the
modifier, then simply make it not an operation that can be calculated on.
Link: https://lkml.kernel.org/r/20210707110821.188ae255@oasis.local.home
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 100719dcef447 ("tracing: Add simple expression support to hist triggers")
Reviewed-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
kernel/trace/trace_events_hist.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1539,6 +1539,13 @@ static int contains_operator(char *str)
switch (*op) {
case '-':
+ /*
+ * Unfortunately, the modifier ".sym-offset"
+ * can confuse things.
+ */
+ if (op - str >= 4 && !strncmp(op - 4, ".sym-offset", 11))
+ return FIELD_OP_NONE;
+
if (*str == '-')
field_op = FIELD_OP_UNARY_MINUS;
else
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 103/700] tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (101 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 102/700] tracing/histograms: Fix parsing of "sym-offset" modifier Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 104/700] seq_buf: Make trace_seq_putmem_hex() support data longer than 8 Greg Kroah-Hartman
` (602 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot, Tetsuo Handa,
Steven Rostedt (VMware)
From: Steven Rostedt (VMware) <rostedt@goodmis.org>
commit 9913d5745bd720c4266805c8d29952a3702e4eca upstream.
All internal use cases for tracepoint_probe_register() is set to not ever
be called with the same function and data. If it is, it is considered a
bug, as that means the accounting of handling tracepoints is corrupted.
If the function and data for a tracepoint is already registered when
tracepoint_probe_register() is called, it will call WARN_ON_ONCE() and
return with EEXISTS.
The BPF system call can end up calling tracepoint_probe_register() with
the same data, which now means that this can trigger the warning because
of a user space process. As WARN_ON_ONCE() should not be called because
user space called a system call with bad data, there needs to be a way to
register a tracepoint without triggering a warning.
Enter tracepoint_probe_register_may_exist(), which can be called, but will
not cause a WARN_ON() if the probe already exists. It will still error out
with EEXIST, which will then be sent to the user space that performed the
BPF system call.
This keeps the previous testing for issues with other users of the
tracepoint code, while letting BPF call it with duplicated data and not
warn about it.
Link: https://lore.kernel.org/lkml/20210626135845.4080-1-penguin-kernel@I-love.SAKURA.ne.jp/
Link: https://syzkaller.appspot.com/bug?id=41f4318cf01762389f4d1c1c459da4f542fe5153
Cc: stable@vger.kernel.org
Fixes: c4f6699dfcb85 ("bpf: introduce BPF_RAW_TRACEPOINT")
Reported-by: syzbot <syzbot+721aa903751db87aa244@syzkaller.appspotmail.com>
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Tested-by: syzbot+721aa903751db87aa244@syzkaller.appspotmail.com
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/tracepoint.h | 10 ++++++++++
kernel/trace/bpf_trace.c | 3 ++-
kernel/tracepoint.c | 33 ++++++++++++++++++++++++++++++---
3 files changed, 42 insertions(+), 4 deletions(-)
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -41,7 +41,17 @@ extern int
tracepoint_probe_register_prio(struct tracepoint *tp, void *probe, void *data,
int prio);
extern int
+tracepoint_probe_register_prio_may_exist(struct tracepoint *tp, void *probe, void *data,
+ int prio);
+extern int
tracepoint_probe_unregister(struct tracepoint *tp, void *probe, void *data);
+static inline int
+tracepoint_probe_register_may_exist(struct tracepoint *tp, void *probe,
+ void *data)
+{
+ return tracepoint_probe_register_prio_may_exist(tp, probe, data,
+ TRACEPOINT_DEFAULT_PRIO);
+}
extern void
for_each_kernel_tracepoint(void (*fct)(struct tracepoint *tp, void *priv),
void *priv);
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -2143,7 +2143,8 @@ static int __bpf_probe_register(struct b
if (prog->aux->max_tp_access > btp->writable_size)
return -EINVAL;
- return tracepoint_probe_register(tp, (void *)btp->bpf_func, prog);
+ return tracepoint_probe_register_may_exist(tp, (void *)btp->bpf_func,
+ prog);
}
int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *prog)
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -273,7 +273,8 @@ static void tracepoint_update_call(struc
* Add the probe function to a tracepoint.
*/
static int tracepoint_add_func(struct tracepoint *tp,
- struct tracepoint_func *func, int prio)
+ struct tracepoint_func *func, int prio,
+ bool warn)
{
struct tracepoint_func *old, *tp_funcs;
int ret;
@@ -288,7 +289,7 @@ static int tracepoint_add_func(struct tr
lockdep_is_held(&tracepoints_mutex));
old = func_add(&tp_funcs, func, prio);
if (IS_ERR(old)) {
- WARN_ON_ONCE(PTR_ERR(old) != -ENOMEM);
+ WARN_ON_ONCE(warn && PTR_ERR(old) != -ENOMEM);
return PTR_ERR(old);
}
@@ -344,6 +345,32 @@ static int tracepoint_remove_func(struct
}
/**
+ * tracepoint_probe_register_prio_may_exist - Connect a probe to a tracepoint with priority
+ * @tp: tracepoint
+ * @probe: probe handler
+ * @data: tracepoint data
+ * @prio: priority of this function over other registered functions
+ *
+ * Same as tracepoint_probe_register_prio() except that it will not warn
+ * if the tracepoint is already registered.
+ */
+int tracepoint_probe_register_prio_may_exist(struct tracepoint *tp, void *probe,
+ void *data, int prio)
+{
+ struct tracepoint_func tp_func;
+ int ret;
+
+ mutex_lock(&tracepoints_mutex);
+ tp_func.func = probe;
+ tp_func.data = data;
+ tp_func.prio = prio;
+ ret = tracepoint_add_func(tp, &tp_func, prio, false);
+ mutex_unlock(&tracepoints_mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(tracepoint_probe_register_prio_may_exist);
+
+/**
* tracepoint_probe_register_prio - Connect a probe to a tracepoint with priority
* @tp: tracepoint
* @probe: probe handler
@@ -366,7 +393,7 @@ int tracepoint_probe_register_prio(struc
tp_func.func = probe;
tp_func.data = data;
tp_func.prio = prio;
- ret = tracepoint_add_func(tp, &tp_func, prio);
+ ret = tracepoint_add_func(tp, &tp_func, prio, true);
mutex_unlock(&tracepoints_mutex);
return ret;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 104/700] seq_buf: Make trace_seq_putmem_hex() support data longer than 8
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (102 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 103/700] tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 105/700] powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi() Greg Kroah-Hartman
` (601 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yun Zhou, Steven Rostedt (VMware)
From: Yun Zhou <yun.zhou@windriver.com>
commit 6a2cbc58d6c9d90cd74288cc497c2b45815bc064 upstream.
Since the raw memory 'data' does not go forward, it will dump repeated
data if the data length is more than 8. If we want to dump longer data
blocks, we need to repeatedly call macro SEQ_PUT_HEX_FIELD. I think it
is a bit redundant, and multiple function calls also affect the performance.
Link: https://lore.kernel.org/lkml/20210625122453.5e2fe304@oasis.local.home/
Link: https://lkml.kernel.org/r/20210626032156.47889-2-yun.zhou@windriver.com
Cc: stable@vger.kernel.org
Fixes: 6d2289f3faa7 ("tracing: Make trace_seq_putmem_hex() more robust")
Signed-off-by: Yun Zhou <yun.zhou@windriver.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
lib/seq_buf.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/lib/seq_buf.c
+++ b/lib/seq_buf.c
@@ -243,12 +243,14 @@ int seq_buf_putmem_hex(struct seq_buf *s
break;
/* j increments twice per loop */
- len -= j / 2;
hex[j++] = ' ';
seq_buf_putmem(s, hex, j);
if (seq_buf_has_overflowed(s))
return -1;
+
+ len -= start_len;
+ data += start_len;
}
return 0;
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 105/700] powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (103 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 104/700] seq_buf: Make trace_seq_putmem_hex() support data longer than 8 Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 106/700] x86/gpu: add JasperLake to gen11 early quirks Greg Kroah-Hartman
` (600 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Nathan Lynch, Michael Ellerman
From: Michael Ellerman <mpe@ellerman.id.au>
commit 7c6986ade69e3c81bac831645bc72109cd798a80 upstream.
In raise_backtrace_ipi() we iterate through the cpumask of CPUs, sending
each an IPI asking them to do a backtrace, but we don't wait for the
backtrace to happen.
We then iterate through the CPU mask again, and if any CPU hasn't done
the backtrace and cleared itself from the mask, we print a trace on its
behalf, noting that the trace may be "stale".
This works well enough when a CPU is not responding, because in that
case it doesn't receive the IPI and the sending CPU is left to print the
trace. But when all CPUs are responding we are left with a race between
the sending and receiving CPUs, if the sending CPU wins the race then it
will erroneously print a trace.
This leads to spurious "stale" traces from the sending CPU, which can
then be interleaved messily with the receiving CPU, note the CPU
numbers, eg:
[ 1658.929157][ C7] rcu: Stack dump where RCU GP kthread last ran:
[ 1658.929223][ C7] Sending NMI from CPU 7 to CPUs 1:
[ 1658.929303][ C1] NMI backtrace for cpu 1
[ 1658.929303][ C7] CPU 1 didn't respond to backtrace IPI, inspecting paca.
[ 1658.929362][ C1] CPU: 1 PID: 325 Comm: kworker/1:1H Tainted: G W E 5.13.0-rc2+ #46
[ 1658.929405][ C7] irq_soft_mask: 0x01 in_mce: 0 in_nmi: 0 current: 325 (kworker/1:1H)
[ 1658.929465][ C1] Workqueue: events_highpri test_work_fn [test_lockup]
[ 1658.929549][ C7] Back trace of paca->saved_r1 (0xc0000000057fb400) (possibly stale):
[ 1658.929592][ C1] NIP: c00000000002cf50 LR: c008000000820178 CTR: c00000000002cfa0
To fix it, change the logic so that the sending CPU waits 5s for the
receiving CPU to print its trace. If the receiving CPU prints its trace
successfully then the sending CPU just continues, avoiding any spurious
"stale" trace.
This has the added benefit of allowing all CPUs to print their traces in
order and avoids any interleaving of their output.
Fixes: 5cc05910f26e ("powerpc/64s: Wire up arch_trigger_cpumask_backtrace()")
Cc: stable@vger.kernel.org # v4.18+
Reported-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210625140408.3351173-1-mpe@ellerman.id.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/kernel/stacktrace.c | 26 ++++++++++++++++++++------
1 file changed, 20 insertions(+), 6 deletions(-)
--- a/arch/powerpc/kernel/stacktrace.c
+++ b/arch/powerpc/kernel/stacktrace.c
@@ -230,17 +230,31 @@ static void handle_backtrace_ipi(struct
static void raise_backtrace_ipi(cpumask_t *mask)
{
+ struct paca_struct *p;
unsigned int cpu;
+ u64 delay_us;
for_each_cpu(cpu, mask) {
- if (cpu == smp_processor_id())
+ if (cpu == smp_processor_id()) {
handle_backtrace_ipi(NULL);
- else
- smp_send_safe_nmi_ipi(cpu, handle_backtrace_ipi, 5 * USEC_PER_SEC);
- }
+ continue;
+ }
- for_each_cpu(cpu, mask) {
- struct paca_struct *p = paca_ptrs[cpu];
+ delay_us = 5 * USEC_PER_SEC;
+
+ if (smp_send_safe_nmi_ipi(cpu, handle_backtrace_ipi, delay_us)) {
+ // Now wait up to 5s for the other CPU to do its backtrace
+ while (cpumask_test_cpu(cpu, mask) && delay_us) {
+ udelay(1);
+ delay_us--;
+ }
+
+ // Other CPU cleared itself from the mask
+ if (delay_us)
+ continue;
+ }
+
+ p = paca_ptrs[cpu];
cpumask_clear_cpu(cpu, mask);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 106/700] x86/gpu: add JasperLake to gen11 early quirks
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (104 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 105/700] powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi() Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 107/700] perf/x86/intel: Add more events requires FRONTEND MSR on Sapphire Rapids Greg Kroah-Hartman
` (599 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, H. Peter Anvin, x86, José Roberto de Souza,
Tejas Upadhyay, Maarten Lankhorst
From: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
commit 31b77c70d9bc04d3b024ea56c129523f9edc1328 upstream.
Let's reserve JSL stolen memory for graphics.
JasperLake is a gen11 platform which is compatible with
ICL/EHL changes.
This was missed in commit 24ea098b7c0d ("drm/i915/jsl: Split
EHL/JSL platform info and PCI ids")
V2:
- Added maintainer list in cc
- Added patch ref in commit message
V1:
- Added Cc: x86@kernel.org
Fixes: 24ea098b7c0d ("drm/i915/jsl: Split EHL/JSL platform info and PCI ids")
Cc: <stable@vger.kernel.org> # v5.11+
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210608053411.394166-1-tejaskumarx.surendrakumar.upadhyay@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kernel/early-quirks.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -549,6 +549,7 @@ static const struct pci_device_id intel_
INTEL_CNL_IDS(&gen9_early_ops),
INTEL_ICL_11_IDS(&gen11_early_ops),
INTEL_EHL_IDS(&gen11_early_ops),
+ INTEL_JSL_IDS(&gen11_early_ops),
INTEL_TGL_12_IDS(&gen11_early_ops),
INTEL_RKL_IDS(&gen11_early_ops),
};
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 107/700] perf/x86/intel: Add more events requires FRONTEND MSR on Sapphire Rapids
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (105 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 106/700] x86/gpu: add JasperLake to gen11 early quirks Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 108/700] perf/x86/intel: Fix instructions:ppp support in " Greg Kroah-Hartman
` (598 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kan Liang, Peter Zijlstra (Intel)
From: Kan Liang <kan.liang@linux.intel.com>
commit d18216fafecf2a3a7c2b97086892269d6ab3cd5e upstream.
On Sapphire Rapids, there are two more events 0x40ad and 0x04c2 which
rely on the FRONTEND MSR. If the FRONTEND MSR is not set correctly, the
count value is not correct.
Update intel_spr_extra_regs[] to support them.
Fixes: 61b985e3e775 ("perf/x86/intel: Add perf core PMU support for Sapphire Rapids")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1624029174-122219-3-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/events/intel/core.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -280,6 +280,8 @@ static struct extra_reg intel_spr_extra_
INTEL_UEVENT_EXTRA_REG(0x012b, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1),
INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE),
+ INTEL_UEVENT_EXTRA_REG(0x40ad, MSR_PEBS_FRONTEND, 0x7, FE),
+ INTEL_UEVENT_EXTRA_REG(0x04c2, MSR_PEBS_FRONTEND, 0x8, FE),
EVENT_EXTRA_END
};
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 108/700] perf/x86/intel: Fix instructions:ppp support in Sapphire Rapids
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (106 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 107/700] perf/x86/intel: Add more events requires FRONTEND MSR on Sapphire Rapids Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 109/700] loop: Fix missing discard support when using LOOP_CONFIGURE Greg Kroah-Hartman
` (597 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yasin, Ahmad, Kan Liang,
Peter Zijlstra (Intel)
From: Kan Liang <kan.liang@linux.intel.com>
commit 1d5c7880992a06679585e7e568cc679c0c5fd4f2 upstream.
Perf errors out when sampling instructions:ppp.
$ perf record -e instructions:ppp -- true
Error:
The sys_perf_event_open() syscall returned with 22 (Invalid argument)
for event (instructions:ppp).
The instruction PDIR is only available on the fixed counter 0. The event
constraint has been updated to fixed0_constraint in
icl_get_event_constraints(). The Sapphire Rapids codes unconditionally
error out for the event which is not available on the GP counter 0.
Make the instructions:ppp an exception.
Fixes: 61b985e3e775 ("perf/x86/intel: Add perf core PMU support for Sapphire Rapids")
Reported-by: Yasin, Ahmad <ahmad.yasin@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1624029174-122219-4-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/events/intel/core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3975,8 +3975,10 @@ spr_get_event_constraints(struct cpu_hw_
* The :ppp indicates the Precise Distribution (PDist) facility, which
* is only supported on the GP counter 0. If a :ppp event which is not
* available on the GP counter 0, error out.
+ * Exception: Instruction PDIR is only available on the fixed counter 0.
*/
- if (event->attr.precise_ip == 3) {
+ if ((event->attr.precise_ip == 3) &&
+ !constraint_match(&fixed0_constraint, event->hw.config)) {
if (c->idxmsk64 & BIT_ULL(0))
return &counter0_constraint;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 109/700] loop: Fix missing discard support when using LOOP_CONFIGURE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (107 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 108/700] perf/x86/intel: Fix instructions:ppp support in " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 110/700] evm: Execute evm_inode_init_security() only when an HMAC key is loaded Greg Kroah-Hartman
` (596 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Kristian Klausen, Jens Axboe
From: Kristian Klausen <kristian@klausen.dk>
commit 2b9ac22b12a266eb4fec246a07b504dd4983b16b upstream.
Without calling loop_config_discard() the discard flag and parameters
aren't set/updated for the loop device and worst-case they could
indicate discard support when it isn't the case (ex: if the
LOOP_SET_STATUS ioctl was used with a different file prior to
LOOP_CONFIGURE).
Cc: <stable@vger.kernel.org> # 5.8.x-
Fixes: 3448914e8cc5 ("loop: Add LOOP_CONFIGURE ioctl")
Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Link: https://lore.kernel.org/r/20210618115157.31452-1-kristian@klausen.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/block/loop.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1153,6 +1153,7 @@ static int loop_configure(struct loop_de
blk_queue_physical_block_size(lo->lo_queue, bsize);
blk_queue_io_min(lo->lo_queue, bsize);
+ loop_config_discard(lo);
loop_update_rotational(lo);
loop_update_dio(lo);
loop_sysfs_init(lo);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 110/700] evm: Execute evm_inode_init_security() only when an HMAC key is loaded
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (108 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 109/700] loop: Fix missing discard support when using LOOP_CONFIGURE Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 111/700] evm: Refuse EVM_ALLOW_METADATA_WRITES only if " Greg Kroah-Hartman
` (595 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Roberto Sassu, Mimi Zohar
From: Roberto Sassu <roberto.sassu@huawei.com>
commit 9eea2904292c2d8fa98df141d3bf7c41ec9dc1b5 upstream.
evm_inode_init_security() requires an HMAC key to calculate the HMAC on
initial xattrs provided by LSMs. However, it checks generically whether a
key has been loaded, including also public keys, which is not correct as
public keys are not suitable to calculate the HMAC.
Originally, support for signature verification was introduced to verify a
possibly immutable initial ram disk, when no new files are created, and to
switch to HMAC for the root filesystem. By that time, an HMAC key should
have been loaded and usable to calculate HMACs for new files.
More recently support for requiring an HMAC key was removed from the
kernel, so that signature verification can be used alone. Since this is a
legitimate use case, evm_inode_init_security() should not return an error
when no HMAC key has been loaded.
This patch fixes this problem by replacing the evm_key_loaded() check with
a check of the EVM_INIT_HMAC flag in evm_initialized.
Fixes: 26ddabfe96b ("evm: enable EVM when X509 certificate is loaded")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org # 4.5.x
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
security/integrity/evm/evm_main.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -521,7 +521,7 @@ void evm_inode_post_setattr(struct dentr
}
/*
- * evm_inode_init_security - initializes security.evm
+ * evm_inode_init_security - initializes security.evm HMAC value
*/
int evm_inode_init_security(struct inode *inode,
const struct xattr *lsm_xattr,
@@ -530,7 +530,8 @@ int evm_inode_init_security(struct inode
struct evm_xattr *xattr_data;
int rc;
- if (!evm_key_loaded() || !evm_protected_xattr(lsm_xattr->name))
+ if (!(evm_initialized & EVM_INIT_HMAC) ||
+ !evm_protected_xattr(lsm_xattr->name))
return 0;
xattr_data = kzalloc(sizeof(*xattr_data), GFP_NOFS);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 111/700] evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (109 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 110/700] evm: Execute evm_inode_init_security() only when an HMAC key is loaded Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 112/700] fuse: Fix crash in fuse_dentry_automount() error path Greg Kroah-Hartman
` (594 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Roberto Sassu, Mimi Zohar
From: Roberto Sassu <roberto.sassu@huawei.com>
commit 9acc89d31f0c94c8e573ed61f3e4340bbd526d0c upstream.
EVM_ALLOW_METADATA_WRITES is an EVM initialization flag that can be set to
temporarily disable metadata verification until all xattrs/attrs necessary
to verify an EVM portable signature are copied to the file. This flag is
cleared when EVM is initialized with an HMAC key, to avoid that the HMAC is
calculated on unverified xattrs/attrs.
Currently EVM unnecessarily denies setting this flag if EVM is initialized
with a public key, which is not a concern as it cannot be used to trust
xattrs/attrs updates. This patch removes this limitation.
Fixes: ae1ba1676b88e ("EVM: Allow userland to permit modification of EVM-protected metadata")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org # 4.16.x
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
Documentation/ABI/testing/evm | 26 ++++++++++++++++++++++++--
security/integrity/evm/evm_secfs.c | 8 ++++----
2 files changed, 28 insertions(+), 6 deletions(-)
--- a/Documentation/ABI/testing/evm
+++ b/Documentation/ABI/testing/evm
@@ -49,8 +49,30 @@ Description:
modification of EVM-protected metadata and
disable all further modification of policy
- Note that once a key has been loaded, it will no longer be
- possible to enable metadata modification.
+ Echoing a value is additive, the new value is added to the
+ existing initialization flags.
+
+ For example, after::
+
+ echo 2 ><securityfs>/evm
+
+ another echo can be performed::
+
+ echo 1 ><securityfs>/evm
+
+ and the resulting value will be 3.
+
+ Note that once an HMAC key has been loaded, it will no longer
+ be possible to enable metadata modification. Signaling that an
+ HMAC key has been loaded will clear the corresponding flag.
+ For example, if the current value is 6 (2 and 4 set)::
+
+ echo 1 ><securityfs>/evm
+
+ will set the new value to 3 (4 cleared).
+
+ Loading an HMAC key is the only way to disable metadata
+ modification.
Until key loading has been signaled EVM can not create
or validate the 'security.evm' xattr, but returns
--- a/security/integrity/evm/evm_secfs.c
+++ b/security/integrity/evm/evm_secfs.c
@@ -80,12 +80,12 @@ static ssize_t evm_write_key(struct file
if (!i || (i & ~EVM_INIT_MASK) != 0)
return -EINVAL;
- /* Don't allow a request to freshly enable metadata writes if
- * keys are loaded.
+ /*
+ * Don't allow a request to enable metadata writes if
+ * an HMAC key is loaded.
*/
if ((i & EVM_ALLOW_METADATA_WRITES) &&
- ((evm_initialized & EVM_KEY_MASK) != 0) &&
- !(evm_initialized & EVM_ALLOW_METADATA_WRITES))
+ (evm_initialized & EVM_INIT_HMAC) != 0)
return -EPERM;
if (i & EVM_INIT_HMAC) {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 112/700] fuse: Fix crash in fuse_dentry_automount() error path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (110 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 111/700] evm: Refuse EVM_ALLOW_METADATA_WRITES only if " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 113/700] fuse: Fix crash if superblock of submount gets killed early Greg Kroah-Hartman
` (593 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Greg Kurz, Max Reitz, Miklos Szeredi
From: Greg Kurz <groug@kaod.org>
commit d92d88f0568e97c437eeb79d9c9609bd8277406f upstream.
If fuse_fill_super_submount() returns an error, the error path
triggers a crash:
[ 26.206673] BUG: kernel NULL pointer dereference, address: 0000000000000000
[...]
[ 26.226362] RIP: 0010:__list_del_entry_valid+0x25/0x90
[...]
[ 26.247938] Call Trace:
[ 26.248300] fuse_mount_remove+0x2c/0x70 [fuse]
[ 26.248892] virtio_kill_sb+0x22/0x160 [virtiofs]
[ 26.249487] deactivate_locked_super+0x36/0xa0
[ 26.250077] fuse_dentry_automount+0x178/0x1a0 [fuse]
The crash happens because fuse_mount_remove() assumes that the FUSE
mount was already added to list under the FUSE connection, but this
only done after fuse_fill_super_submount() has returned success.
This means that until fuse_fill_super_submount() has returned success,
the FUSE mount isn't actually owned by the superblock. We should thus
reclaim ownership by clearing sb->s_fs_info, which will skip the call
to fuse_mount_remove(), and perform rollback, like virtio_fs_get_tree()
already does for the root sb.
Fixes: bf109c64040f ("fuse: implement crossmounts")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/dir.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -339,8 +339,12 @@ static struct vfsmount *fuse_dentry_auto
/* Initialize superblock, making @mp_fi its root */
err = fuse_fill_super_submount(sb, mp_fi);
- if (err)
+ if (err) {
+ fuse_conn_put(fc);
+ kfree(fm);
+ sb->s_fs_info = NULL;
goto out_put_sb;
+ }
sb->s_flags |= SB_ACTIVE;
fsc->root = dget(sb->s_root);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 113/700] fuse: Fix crash if superblock of submount gets killed early
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (111 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 112/700] fuse: Fix crash in fuse_dentry_automount() error path Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 114/700] fuse: Fix infinite loop in sget_fc() Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Greg Kurz, Max Reitz, Miklos Szeredi
From: Greg Kurz <groug@kaod.org>
commit e3a43f2a95393000778f8f302d48795add2fc4a8 upstream.
As soon as fuse_dentry_automount() does up_write(&sb->s_umount), the
superblock can theoretically be killed. If this happens before the
submount was added to the &fc->mounts list, fuse_mount_remove() later
crashes in list_del_init() because it assumes the submount to be
already there.
Add the submount before dropping sb->s_umount to fix the inconsistency.
It is okay to nest fc->killsb under sb->s_umount, we already do this
on the ->kill_sb() path.
Signed-off-by: Greg Kurz <groug@kaod.org>
Fixes: bf109c64040f ("fuse: implement crossmounts")
Cc: stable@vger.kernel.org # v5.10+
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/dir.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -346,15 +346,15 @@ static struct vfsmount *fuse_dentry_auto
goto out_put_sb;
}
+ down_write(&fc->killsb);
+ list_add_tail(&fm->fc_entry, &fc->mounts);
+ up_write(&fc->killsb);
+
sb->s_flags |= SB_ACTIVE;
fsc->root = dget(sb->s_root);
/* We are done configuring the superblock, so unlock it */
up_write(&sb->s_umount);
- down_write(&fc->killsb);
- list_add_tail(&fm->fc_entry, &fc->mounts);
- up_write(&fc->killsb);
-
/* Create the submount */
mnt = vfs_create_mount(fsc);
if (IS_ERR(mnt)) {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 114/700] fuse: Fix infinite loop in sget_fc()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (112 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 113/700] fuse: Fix crash if superblock of submount gets killed early Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 115/700] fuse: ignore PG_workingset after stealing Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Greg Kurz, Max Reitz, Miklos Szeredi
From: Greg Kurz <groug@kaod.org>
commit e4a9ccdd1c03b3dc58214874399d24331ea0a3ab upstream.
We don't set the SB_BORN flag on submounts. This is wrong as these
superblocks are then considered as partially constructed or dying
in the rest of the code and can break some assumptions.
One such case is when you have a virtiofs filesystem with submounts
and you try to mount it again : virtio_fs_get_tree() tries to obtain
a superblock with sget_fc(). The logic in sget_fc() is to loop until
it has either found an existing matching superblock with SB_BORN set
or to create a brand new one. It is assumed that a superblock without
SB_BORN is transient and the loop is restarted. Forgetting to set
SB_BORN on submounts hence causes sget_fc() to retry forever.
Setting SB_BORN requires special care, i.e. a write barrier for
super_cache_count() which can check SB_BORN without taking any lock.
We should call vfs_get_tree() to deal with that but this requires
to have a proper ->get_tree() implementation for submounts, which
is a bigger piece of work. Go for a simple bug fix in the meatime.
Fixes: bf109c64040f ("fuse: implement crossmounts")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/dir.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -352,6 +352,17 @@ static struct vfsmount *fuse_dentry_auto
sb->s_flags |= SB_ACTIVE;
fsc->root = dget(sb->s_root);
+
+ /*
+ * FIXME: setting SB_BORN requires a write barrier for
+ * super_cache_count(). We should actually come
+ * up with a proper ->get_tree() implementation
+ * for submounts and call vfs_get_tree() to take
+ * care of the write barrier.
+ */
+ smp_wmb();
+ sb->s_flags |= SB_BORN;
+
/* We are done configuring the superblock, so unlock it */
up_write(&sb->s_umount);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 115/700] fuse: ignore PG_workingset after stealing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (113 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 114/700] fuse: Fix infinite loop in sget_fc() Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 116/700] fuse: check connected before queueing on fpq->io Greg Kroah-Hartman
` (590 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Thomas Lindroth, Miklos Szeredi
From: Miklos Szeredi <mszeredi@redhat.com>
commit b89ecd60d38ec042d63bdb376c722a16f92bcb88 upstream.
Fix the "fuse: trying to steal weird page" warning.
Description from Johannes Weiner:
"Think of it as similar to PG_active. It's just another usage/heat
indicator of file and anon pages on the reclaim LRU that, unlike
PG_active, persists across deactivation and even reclaim (we store it in
the page cache / swapper cache tree until the page refaults).
So if fuse accepts pages that can legally have PG_active set,
PG_workingset is fine too."
Reported-by: Thomas Lindroth <thomas.lindroth@gmail.com>
Fixes: 1899ad18c607 ("mm: workingset: tell cache transitions from workingset thrashing")
Cc: <stable@vger.kernel.org> # v4.20
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/dev.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -783,6 +783,7 @@ static int fuse_check_page(struct page *
1 << PG_uptodate |
1 << PG_lru |
1 << PG_active |
+ 1 << PG_workingset |
1 << PG_reclaim |
1 << PG_waiters))) {
dump_page(page, "fuse: trying to steal weird page");
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 116/700] fuse: check connected before queueing on fpq->io
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (114 preceding siblings ...)
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@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 117/700] fuse: reject internal errno Greg Kroah-Hartman
` (589 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pradeep P V K, Miklos Szeredi
From: Miklos Szeredi <mszeredi@redhat.com>
commit 80ef08670d4c28a06a3de954bd350368780bcfef upstream.
A request could end up on the fpq->io list after fuse_abort_conn() has
reset fpq->connected and aborted requests on that list:
Thread-1 Thread-2
======== ========
->fuse_simple_request() ->shutdown
->__fuse_request_send()
->queue_request() ->fuse_abort_conn()
->fuse_dev_do_read() ->acquire(fpq->lock)
->wait_for(fpq->lock) ->set err to all req's in fpq->io
->release(fpq->lock)
->acquire(fpq->lock)
->add req to fpq->io
After the userspace copy is done the request will be ended, but
req->out.h.error will remain uninitialized. Also the copy might block
despite being already aborted.
Fix both issues by not allowing the request to be queued on the fpq->io
list after fuse_abort_conn() has processed this list.
Reported-by: Pradeep P V K <pragalla@codeaurora.org>
Fixes: fd22d62ed0c3 ("fuse: no fc->lock for iqueue parts")
Cc: <stable@vger.kernel.org> # v4.2
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/dev.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1272,6 +1272,15 @@ static ssize_t fuse_dev_do_read(struct f
goto restart;
}
spin_lock(&fpq->lock);
+ /*
+ * Must not put request on fpq->io queue after having been shut down by
+ * fuse_abort_conn()
+ */
+ if (!fpq->connected) {
+ req->out.h.error = err = -ECONNABORTED;
+ goto out_end;
+
+ }
list_add(&req->list, &fpq->io);
spin_unlock(&fpq->lock);
cs->req = req;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 117/700] fuse: reject internal errno
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (115 preceding siblings ...)
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@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 118/700] thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure Greg Kroah-Hartman
` (588 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Anatoly Trosinenko, Miklos Szeredi
From: Miklos Szeredi <mszeredi@redhat.com>
commit 49221cf86d18bb66fe95d3338cb33bd4b9880ca5 upstream.
Don't allow userspace to report errors that could be kernel-internal.
Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Fixes: 334f485df85a ("[PATCH] FUSE - device functions")
Cc: <stable@vger.kernel.org> # v2.6.14
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/fuse/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1867,7 +1867,7 @@ static ssize_t fuse_dev_do_write(struct
}
err = -EINVAL;
- if (oh.error <= -1000 || oh.error > 0)
+ if (oh.error <= -512 || oh.error > 0)
goto copy_finish;
spin_lock(&fpq->lock);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 118/700] thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (116 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 117/700] fuse: reject internal errno Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 119/700] spi: Make of_register_spi_device also set the fwnode Greg Kroah-Hartman
` (587 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lukasz Luba, Peter Zijlstra (Intel),
Viresh Kumar, Sasha Levin
From: Lukasz Luba <lukasz.luba@arm.com>
[ Upstream commit 2ad8ccc17d1e4270cf65a3f2a07a7534aa23e3fb ]
The thermal pressure signal gives information to the scheduler about
reduced CPU capacity due to thermal. It is based on a value stored in
a per-cpu 'thermal_pressure' variable. The online CPUs will get the
new value there, while the offline won't. Unfortunately, when the CPU
is back online, the value read from per-cpu variable might be wrong
(stale data). This might affect the scheduler decisions, since it
sees the CPU capacity differently than what is actually available.
Fix it by making sure that all online+offline CPUs would get the
proper value in their per-cpu variable when thermal framework sets
capping.
Fixes: f12e4f66ab6a3 ("thermal/cpu-cooling: Update thermal pressure in case of a maximum frequency capping")
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20210614191030.22241-1-lukasz.luba@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/thermal/cpufreq_cooling.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index 6956581ed7a4..b8ded3aef371 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -487,7 +487,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
ret = freq_qos_update_request(&cpufreq_cdev->qos_req, frequency);
if (ret >= 0) {
cpufreq_cdev->cpufreq_state = state;
- cpus = cpufreq_cdev->policy->cpus;
+ cpus = cpufreq_cdev->policy->related_cpus;
max_capacity = arch_scale_cpu_capacity(cpumask_first(cpus));
capacity = frequency * max_capacity;
capacity /= cpufreq_cdev->policy->cpuinfo.max_freq;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 119/700] spi: Make of_register_spi_device also set the fwnode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 120/700] Add a reference to ucounts for each cred Greg Kroah-Hartman
` (586 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Charles Keepax, Mark Brown, Sasha Levin
From: Charles Keepax <ckeepax@opensource.cirrus.com>
[ Upstream commit 0e793ba77c18382f08e440260fe72bc6fce2a3cb ]
Currently, the SPI core doesn't set the struct device fwnode pointer
when it creates a new SPI device. This means when the device is
registered the fwnode is NULL and the check in device_add which sets
the fwnode->dev pointer is skipped. This wasn't previously an issue,
however these two patches:
commit 4731210c09f5 ("gpiolib: Bind gpio_device to a driver to enable
fw_devlink=on by default")
commit ced2af419528 ("gpiolib: Don't probe gpio_device if it's not the
primary device")
Added some code to the GPIO core which relies on using that
fwnode->dev pointer to determine if a driver is bound to the fwnode
and if not bind a stub GPIO driver. This means the GPIO providers
behind SPI will get both the expected driver and this stub driver
causing the stub driver to fail if it attempts to request any pin
configuration. For example on my system:
madera-pinctrl madera-pinctrl: pin gpio5 already requested by madera-pinctrl; cannot claim for gpiochip3
madera-pinctrl madera-pinctrl: pin-4 (gpiochip3) status -22
madera-pinctrl madera-pinctrl: could not request pin 4 (gpio5) from group aif1 on device madera-pinctrl
gpio_stub_drv gpiochip3: Error applying setting, reverse things back
gpio_stub_drv: probe of gpiochip3 failed with error -22
The firmware node on the device created by the GPIO framework is set
through the of_node pointer hence things generally actually work,
however that fwnode->dev is never set, as the check was skipped at
device_add time. This fix appears to match how the I2C subsystem
handles the same situation.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210421101402.8468-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index e067c54e87dd..789354ee6a11 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2066,6 +2066,7 @@ of_register_spi_device(struct spi_controller *ctlr, struct device_node *nc)
/* Store a pointer to the node in the device structure */
of_node_get(nc);
spi->dev.of_node = nc;
+ spi->dev.fwnode = of_fwnode_handle(nc);
/* Register the new device */
rc = spi_add_device(spi);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 120/700] Add a reference to ucounts for each cred
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 121/700] staging: media: rkvdec: fix pm_runtime_get_sync() usage count Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Alexey Gladkov,
Eric W. Biederman, Sasha Levin
From: Alexey Gladkov <legion@kernel.org>
[ Upstream commit 905ae01c4ae2ae3df05bb141801b1db4b7d83c61 ]
For RLIMIT_NPROC and some other rlimits the user_struct that holds the
global limit is kept alive for the lifetime of a process by keeping it
in struct cred. Adding a pointer to ucounts in the struct cred will
allow to track RLIMIT_NPROC not only for user in the system, but for
user in the user_namespace.
Updating ucounts may require memory allocation which may fail. So, we
cannot change cred.ucounts in the commit_creds() because this function
cannot fail and it should always return 0. For this reason, we modify
cred.ucounts before calling the commit_creds().
Changelog
v6:
* Fix null-ptr-deref in is_ucounts_overlimit() detected by trinity. This
error was caused by the fact that cred_alloc_blank() left the ucounts
pointer empty.
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Alexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/b37aaef28d8b9b0d757e07ba6dd27281bbe39259.1619094428.git.legion@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/exec.c | 4 ++++
include/linux/cred.h | 2 ++
include/linux/user_namespace.h | 4 ++++
kernel/cred.c | 40 ++++++++++++++++++++++++++++++++++
kernel/fork.c | 6 +++++
kernel/sys.c | 12 ++++++++++
kernel/ucount.c | 40 +++++++++++++++++++++++++++++++---
kernel/user_namespace.c | 3 +++
8 files changed, 108 insertions(+), 3 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c
index 18594f11c31f..d7c4187ca023 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1360,6 +1360,10 @@ int begin_new_exec(struct linux_binprm * bprm)
WRITE_ONCE(me->self_exec_id, me->self_exec_id + 1);
flush_signal_handlers(me, 0);
+ retval = set_cred_ucounts(bprm->cred);
+ if (retval < 0)
+ goto out_unlock;
+
/*
* install the new credentials for this executable
*/
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 4c6350503697..66436e655032 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -144,6 +144,7 @@ struct cred {
#endif
struct user_struct *user; /* real user ID subscription */
struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
+ struct ucounts *ucounts;
struct group_info *group_info; /* supplementary groups for euid/fsgid */
/* RCU deletion */
union {
@@ -170,6 +171,7 @@ extern int set_security_override_from_ctx(struct cred *, const char *);
extern int set_create_files_as(struct cred *, struct inode *);
extern int cred_fscmp(const struct cred *, const struct cred *);
extern void __init cred_init(void);
+extern int set_cred_ucounts(struct cred *);
/*
* check for validity of credentials
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index f6c5f784be5a..604cf6a5dc2d 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -100,11 +100,15 @@ struct ucounts {
};
extern struct user_namespace init_user_ns;
+extern struct ucounts init_ucounts;
bool setup_userns_sysctls(struct user_namespace *ns);
void retire_userns_sysctls(struct user_namespace *ns);
struct ucounts *inc_ucount(struct user_namespace *ns, kuid_t uid, enum ucount_type type);
void dec_ucount(struct ucounts *ucounts, enum ucount_type type);
+struct ucounts *alloc_ucounts(struct user_namespace *ns, kuid_t uid);
+struct ucounts *get_ucounts(struct ucounts *ucounts);
+void put_ucounts(struct ucounts *ucounts);
#ifdef CONFIG_USER_NS
diff --git a/kernel/cred.c b/kernel/cred.c
index 421b1149c651..58a8a9e24347 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -60,6 +60,7 @@ struct cred init_cred = {
.user = INIT_USER,
.user_ns = &init_user_ns,
.group_info = &init_groups,
+ .ucounts = &init_ucounts,
};
static inline void set_cred_subscribers(struct cred *cred, int n)
@@ -119,6 +120,8 @@ static void put_cred_rcu(struct rcu_head *rcu)
if (cred->group_info)
put_group_info(cred->group_info);
free_uid(cred->user);
+ if (cred->ucounts)
+ put_ucounts(cred->ucounts);
put_user_ns(cred->user_ns);
kmem_cache_free(cred_jar, cred);
}
@@ -222,6 +225,7 @@ struct cred *cred_alloc_blank(void)
#ifdef CONFIG_DEBUG_CREDENTIALS
new->magic = CRED_MAGIC;
#endif
+ new->ucounts = get_ucounts(&init_ucounts);
if (security_cred_alloc_blank(new, GFP_KERNEL_ACCOUNT) < 0)
goto error;
@@ -284,6 +288,11 @@ struct cred *prepare_creds(void)
if (security_prepare_creds(new, old, GFP_KERNEL_ACCOUNT) < 0)
goto error;
+
+ new->ucounts = get_ucounts(new->ucounts);
+ if (!new->ucounts)
+ goto error;
+
validate_creds(new);
return new;
@@ -363,6 +372,8 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags)
ret = create_user_ns(new);
if (ret < 0)
goto error_put;
+ if (set_cred_ucounts(new) < 0)
+ goto error_put;
}
#ifdef CONFIG_KEYS
@@ -653,6 +664,31 @@ int cred_fscmp(const struct cred *a, const struct cred *b)
}
EXPORT_SYMBOL(cred_fscmp);
+int set_cred_ucounts(struct cred *new)
+{
+ struct task_struct *task = current;
+ const struct cred *old = task->real_cred;
+ struct ucounts *old_ucounts = new->ucounts;
+
+ if (new->user == old->user && new->user_ns == old->user_ns)
+ return 0;
+
+ /*
+ * This optimization is needed because alloc_ucounts() uses locks
+ * for table lookups.
+ */
+ if (old_ucounts && old_ucounts->ns == new->user_ns && uid_eq(old_ucounts->uid, new->euid))
+ return 0;
+
+ if (!(new->ucounts = alloc_ucounts(new->user_ns, new->euid)))
+ return -EAGAIN;
+
+ if (old_ucounts)
+ put_ucounts(old_ucounts);
+
+ return 0;
+}
+
/*
* initialise the credentials stuff
*/
@@ -719,6 +755,10 @@ struct cred *prepare_kernel_cred(struct task_struct *daemon)
if (security_prepare_creds(new, old, GFP_KERNEL_ACCOUNT) < 0)
goto error;
+ new->ucounts = get_ucounts(new->ucounts);
+ if (!new->ucounts)
+ goto error;
+
put_cred(old);
validate_creds(new);
return new;
diff --git a/kernel/fork.c b/kernel/fork.c
index 426cd0c51f9e..321a5e31d817 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2995,6 +2995,12 @@ int ksys_unshare(unsigned long unshare_flags)
if (err)
goto bad_unshare_cleanup_cred;
+ if (new_cred) {
+ err = set_cred_ucounts(new_cred);
+ if (err)
+ goto bad_unshare_cleanup_cred;
+ }
+
if (new_fs || new_fd || do_sysvsem || new_cred || new_nsproxy) {
if (do_sysvsem) {
/*
diff --git a/kernel/sys.c b/kernel/sys.c
index 2e2e3f378d97..cabfc5b86175 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -552,6 +552,10 @@ long __sys_setreuid(uid_t ruid, uid_t euid)
if (retval < 0)
goto error;
+ retval = set_cred_ucounts(new);
+ if (retval < 0)
+ goto error;
+
return commit_creds(new);
error:
@@ -610,6 +614,10 @@ long __sys_setuid(uid_t uid)
if (retval < 0)
goto error;
+ retval = set_cred_ucounts(new);
+ if (retval < 0)
+ goto error;
+
return commit_creds(new);
error:
@@ -685,6 +693,10 @@ long __sys_setresuid(uid_t ruid, uid_t euid, uid_t suid)
if (retval < 0)
goto error;
+ retval = set_cred_ucounts(new);
+ if (retval < 0)
+ goto error;
+
return commit_creds(new);
error:
diff --git a/kernel/ucount.c b/kernel/ucount.c
index 11b1596e2542..9894795043c4 100644
--- a/kernel/ucount.c
+++ b/kernel/ucount.c
@@ -8,6 +8,12 @@
#include <linux/kmemleak.h>
#include <linux/user_namespace.h>
+struct ucounts init_ucounts = {
+ .ns = &init_user_ns,
+ .uid = GLOBAL_ROOT_UID,
+ .count = 1,
+};
+
#define UCOUNTS_HASHTABLE_BITS 10
static struct hlist_head ucounts_hashtable[(1 << UCOUNTS_HASHTABLE_BITS)];
static DEFINE_SPINLOCK(ucounts_lock);
@@ -125,7 +131,15 @@ static struct ucounts *find_ucounts(struct user_namespace *ns, kuid_t uid, struc
return NULL;
}
-static struct ucounts *get_ucounts(struct user_namespace *ns, kuid_t uid)
+static void hlist_add_ucounts(struct ucounts *ucounts)
+{
+ struct hlist_head *hashent = ucounts_hashentry(ucounts->ns, ucounts->uid);
+ spin_lock_irq(&ucounts_lock);
+ hlist_add_head(&ucounts->node, hashent);
+ spin_unlock_irq(&ucounts_lock);
+}
+
+struct ucounts *alloc_ucounts(struct user_namespace *ns, kuid_t uid)
{
struct hlist_head *hashent = ucounts_hashentry(ns, uid);
struct ucounts *ucounts, *new;
@@ -160,7 +174,26 @@ static struct ucounts *get_ucounts(struct user_namespace *ns, kuid_t uid)
return ucounts;
}
-static void put_ucounts(struct ucounts *ucounts)
+struct ucounts *get_ucounts(struct ucounts *ucounts)
+{
+ unsigned long flags;
+
+ if (!ucounts)
+ return NULL;
+
+ spin_lock_irqsave(&ucounts_lock, flags);
+ if (ucounts->count == INT_MAX) {
+ WARN_ONCE(1, "ucounts: counter has reached its maximum value");
+ ucounts = NULL;
+ } else {
+ ucounts->count += 1;
+ }
+ spin_unlock_irqrestore(&ucounts_lock, flags);
+
+ return ucounts;
+}
+
+void put_ucounts(struct ucounts *ucounts)
{
unsigned long flags;
@@ -194,7 +227,7 @@ struct ucounts *inc_ucount(struct user_namespace *ns, kuid_t uid,
{
struct ucounts *ucounts, *iter, *bad;
struct user_namespace *tns;
- ucounts = get_ucounts(ns, uid);
+ ucounts = alloc_ucounts(ns, uid);
for (iter = ucounts; iter; iter = tns->ucounts) {
int max;
tns = iter->ns;
@@ -237,6 +270,7 @@ static __init int user_namespace_sysctl_init(void)
BUG_ON(!user_header);
BUG_ON(!setup_userns_sysctls(&init_user_ns));
#endif
+ hlist_add_ucounts(&init_ucounts);
return 0;
}
subsys_initcall(user_namespace_sysctl_init);
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 9a4b980d695b..f1b7b4b8ffa2 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -1340,6 +1340,9 @@ static int userns_install(struct nsset *nsset, struct ns_common *ns)
put_user_ns(cred->user_ns);
set_cred_user_ns(cred, get_user_ns(user_ns));
+ if (set_cred_ucounts(cred) < 0)
+ return -EINVAL;
+
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 121/700] staging: media: rkvdec: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (119 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 120/700] Add a reference to ucounts for each cred Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 122/700] media: i2c: imx334: fix the pm runtime get logic Greg Kroah-Hartman
` (584 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ezequiel Garcia, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit e90812c47b958407b54d05780dc483fdc1b57a93 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/rkvdec/rkvdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index d821661d30f3..8c17615f3a7a 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -658,7 +658,7 @@ static void rkvdec_device_run(void *priv)
if (WARN_ON(!desc))
return;
- ret = pm_runtime_get_sync(rkvdec->dev);
+ ret = pm_runtime_resume_and_get(rkvdec->dev);
if (ret < 0) {
rkvdec_job_finish_no_pm(ctx, VB2_BUF_STATE_ERROR);
return;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 122/700] media: i2c: imx334: fix the pm runtime get logic
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (120 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 121/700] staging: media: rkvdec: fix pm_runtime_get_sync() usage count Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 123/700] media: marvel-ccic: fix some issues when getting pm_runtime Greg Kroah-Hartman
` (583 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Daniele Alessandrelli,
Jonathan Cameron, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 62c90446868b439929cb04395f04a709a64ae04b ]
The PM runtime get logic is currently broken, as it checks if
ret is zero instead of checking if it is an error code,
as reported by Dan Carpenter.
While here, use the pm_runtime_resume_and_get() as added by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
added pm_runtime_resume_and_get() in order to automatically handle
dev->power.usage_count decrement on errors. As a bonus, such function
always return zero on success.
It should also be noticed that a fail of pm_runtime_get_sync() would
potentially result in a spurious runtime_suspend(), instead of
using pm_runtime_put_noidle().
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/imx334.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/i2c/imx334.c b/drivers/media/i2c/imx334.c
index ad530f0d338a..02d22907c75c 100644
--- a/drivers/media/i2c/imx334.c
+++ b/drivers/media/i2c/imx334.c
@@ -717,9 +717,9 @@ static int imx334_set_stream(struct v4l2_subdev *sd, int enable)
}
if (enable) {
- ret = pm_runtime_get_sync(imx334->dev);
- if (ret)
- goto error_power_off;
+ ret = pm_runtime_resume_and_get(imx334->dev);
+ if (ret < 0)
+ goto error_unlock;
ret = imx334_start_streaming(imx334);
if (ret)
@@ -737,6 +737,7 @@ static int imx334_set_stream(struct v4l2_subdev *sd, int enable)
error_power_off:
pm_runtime_put(imx334->dev);
+error_unlock:
mutex_unlock(&imx334->mutex);
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 123/700] media: marvel-ccic: fix some issues when getting pm_runtime
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (121 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 122/700] media: i2c: imx334: fix the pm runtime get logic Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 124/700] media: mdk-mdp: fix pm_runtime_get_sync() usage count Greg Kroah-Hartman
` (582 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit e7c617cab7a522fba5b20f9033ee98565b6f3546 ]
Calling pm_runtime_get_sync() is bad, since even when it
returns an error, pm_runtime_put*() should be called.
So, use instead pm_runtime_resume_and_get().
While here, ensure that the error condition will be checked
during clock enable an media open() calls.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/marvell-ccic/mcam-core.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 141bf5d97a04..ea87110d9073 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -918,6 +918,7 @@ static int mclk_enable(struct clk_hw *hw)
struct mcam_camera *cam = container_of(hw, struct mcam_camera, mclk_hw);
int mclk_src;
int mclk_div;
+ int ret;
/*
* Clock the sensor appropriately. Controller clock should
@@ -931,7 +932,9 @@ static int mclk_enable(struct clk_hw *hw)
mclk_div = 2;
}
- pm_runtime_get_sync(cam->dev);
+ ret = pm_runtime_resume_and_get(cam->dev);
+ if (ret < 0)
+ return ret;
clk_enable(cam->clk[0]);
mcam_reg_write(cam, REG_CLKCTRL, (mclk_src << 29) | mclk_div);
mcam_ctlr_power_up(cam);
@@ -1611,7 +1614,9 @@ static int mcam_v4l_open(struct file *filp)
ret = sensor_call(cam, core, s_power, 1);
if (ret)
goto out;
- pm_runtime_get_sync(cam->dev);
+ ret = pm_runtime_resume_and_get(cam->dev);
+ if (ret < 0)
+ goto out;
__mcam_cam_reset(cam);
mcam_set_config_needed(cam, 1);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 124/700] media: mdk-mdp: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (122 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 123/700] media: marvel-ccic: fix some issues when getting pm_runtime Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 125/700] media: s5p: " Greg Kroah-Hartman
` (581 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit d07bb9702cf5f5ccf3fb661e6cab54bbc33cd23f ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
While here, fix the return contition of mtk_mdp_m2m_start_streaming(),
as it doesn't make any sense to return 0 if the PM runtime failed
to resume.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
index ace4528cdc5e..f14779e7596e 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
@@ -391,12 +391,12 @@ static int mtk_mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
struct mtk_mdp_ctx *ctx = q->drv_priv;
int ret;
- ret = pm_runtime_get_sync(&ctx->mdp_dev->pdev->dev);
+ ret = pm_runtime_resume_and_get(&ctx->mdp_dev->pdev->dev);
if (ret < 0)
- mtk_mdp_dbg(1, "[%d] pm_runtime_get_sync failed:%d",
+ mtk_mdp_dbg(1, "[%d] pm_runtime_resume_and_get failed:%d",
ctx->id, ret);
- return 0;
+ return ret;
}
static void *mtk_mdp_m2m_buf_remove(struct mtk_mdp_ctx *ctx,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 125/700] media: s5p: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (123 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 124/700] media: mdk-mdp: fix pm_runtime_get_sync() usage count Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 126/700] media: am437x: " Greg Kroah-Hartman
` (580 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Sylwester Nawrocki,
Marek Szyprowski, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit fdc34e82c0f968ac4c157bd3d8c299ebc24c9c63 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
While here, check if the PM runtime error was caught at
s5p_cec_adap_enable().
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/cec/platform/s5p/s5p_cec.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c
index 2a3e7ffefe0a..2250c1cbc64e 100644
--- a/drivers/media/cec/platform/s5p/s5p_cec.c
+++ b/drivers/media/cec/platform/s5p/s5p_cec.c
@@ -35,10 +35,13 @@ MODULE_PARM_DESC(debug, "debug level (0-2)");
static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
+ int ret;
struct s5p_cec_dev *cec = cec_get_drvdata(adap);
if (enable) {
- pm_runtime_get_sync(cec->dev);
+ ret = pm_runtime_resume_and_get(cec->dev);
+ if (ret < 0)
+ return ret;
s5p_cec_reset(cec);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 126/700] media: am437x: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (124 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 125/700] media: s5p: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 127/700] media: sh_vou: " Greg Kroah-Hartman
` (579 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit c41e02493334985cca1a22efd5ca962ce3abb061 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
While here, ensure that the driver will check if PM runtime
resumed at vpfe_initialize_device().
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/am437x/am437x-vpfe.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 6cdc77dda0e4..1c9cb9e05fdf 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -1021,7 +1021,9 @@ static int vpfe_initialize_device(struct vpfe_device *vpfe)
if (ret)
return ret;
- pm_runtime_get_sync(vpfe->pdev);
+ ret = pm_runtime_resume_and_get(vpfe->pdev);
+ if (ret < 0)
+ return ret;
vpfe_config_enable(&vpfe->ccdc, 1);
@@ -2443,7 +2445,11 @@ static int vpfe_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
/* for now just enable it here instead of waiting for the open */
- pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret < 0) {
+ vpfe_err(vpfe, "Unable to resume device.\n");
+ goto probe_out_v4l2_unregister;
+ }
vpfe_ccdc_config_defaults(ccdc);
@@ -2530,6 +2536,11 @@ static int vpfe_suspend(struct device *dev)
/* only do full suspend if streaming has started */
if (vb2_start_streaming_called(&vpfe->buffer_queue)) {
+ /*
+ * ignore RPM resume errors here, as it is already too late.
+ * A check like that should happen earlier, either at
+ * open() or just before start streaming.
+ */
pm_runtime_get_sync(dev);
vpfe_config_enable(ccdc, 1);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 127/700] media: sh_vou: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (125 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 126/700] media: am437x: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 128/700] media: mtk-vcodec: fix PM runtime get logic Greg Kroah-Hartman
` (578 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 6e8b1526db164c9d4b9dacfb9bc48e365d7c4860 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
While here, check if the PM runtime error was caught at open time.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/sh_vou.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/sh_vou.c b/drivers/media/platform/sh_vou.c
index 4ac48441f22c..ca4310e26c49 100644
--- a/drivers/media/platform/sh_vou.c
+++ b/drivers/media/platform/sh_vou.c
@@ -1133,7 +1133,11 @@ static int sh_vou_open(struct file *file)
if (v4l2_fh_is_singular_file(file) &&
vou_dev->status == SH_VOU_INITIALISING) {
/* First open */
- pm_runtime_get_sync(vou_dev->v4l2_dev.dev);
+ err = pm_runtime_resume_and_get(vou_dev->v4l2_dev.dev);
+ if (err < 0) {
+ v4l2_fh_release(file);
+ goto done_open;
+ }
err = sh_vou_hw_init(vou_dev);
if (err < 0) {
pm_runtime_put(vou_dev->v4l2_dev.dev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 128/700] media: mtk-vcodec: fix PM runtime get logic
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (126 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 127/700] media: sh_vou: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 129/700] media: s5p-jpeg: fix pm_runtime_get_sync() usage count Greg Kroah-Hartman
` (577 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 908711f542c17fe61e5d653da1beb8e5ab5c7b50 ]
Currently, the driver just assumes that PM runtime logic
succeded resuming the device.
That may not be the case, as pm_runtime_get_sync()
can fail (but keeping the usage count incremented).
Replace the code to use pm_runtime_resume_and_get(),
and letting it return the error code.
This way, if mtk_vcodec_dec_pw_on() fails, the logic
under fops_vcodec_open() will do the right thing and
return an error, instead of just assuming that the
device is ready to be used.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 4 +++-
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 8 +++++---
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h | 2 +-
3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 147dfef1638d..f87dc47d9e63 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -126,7 +126,9 @@ static int fops_vcodec_open(struct file *file)
mtk_vcodec_dec_set_default_params(ctx);
if (v4l2_fh_is_singular(&ctx->fh)) {
- mtk_vcodec_dec_pw_on(&dev->pm);
+ ret = mtk_vcodec_dec_pw_on(&dev->pm);
+ if (ret < 0)
+ goto err_load_fw;
/*
* Does nothing if firmware was already loaded.
*/
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index ddee7046ce42..6038db96f71c 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -88,13 +88,15 @@ void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)
put_device(dev->pm.larbvdec);
}
-void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
{
int ret;
- ret = pm_runtime_get_sync(pm->dev);
+ ret = pm_runtime_resume_and_get(pm->dev);
if (ret)
- mtk_v4l2_err("pm_runtime_get_sync fail %d", ret);
+ mtk_v4l2_err("pm_runtime_resume_and_get fail %d", ret);
+
+ return ret;
}
void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
index 872d8bf8cfaf..280aeaefdb65 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -12,7 +12,7 @@
int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *dev);
void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev);
-void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm);
void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 129/700] media: s5p-jpeg: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (127 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 128/700] media: mtk-vcodec: fix PM runtime get logic Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 130/700] media: sunxi: " Greg Kroah-Hartman
` (576 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Sylwester Nawrocki,
Andrzej Pietrasiewicz, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 10343de268d10cf07b092b8b525e12ad558ead77 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
As a plus, pm_runtime_resume_and_get() doesn't return
positive numbers, so the return code validation can
be removed.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/s5p-jpeg/jpeg-core.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 026111505f5a..d402e456f27d 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -2566,11 +2566,8 @@ static void s5p_jpeg_buf_queue(struct vb2_buffer *vb)
static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q);
- int ret;
-
- ret = pm_runtime_get_sync(ctx->jpeg->dev);
- return ret > 0 ? 0 : ret;
+ return pm_runtime_resume_and_get(ctx->jpeg->dev);
}
static void s5p_jpeg_stop_streaming(struct vb2_queue *q)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 130/700] media: sunxi: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (128 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 129/700] media: s5p-jpeg: fix pm_runtime_get_sync() usage count Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 131/700] media: sti/bdisp: " Greg Kroah-Hartman
` (575 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 9c298f82d8392f799a0595f50076afa1d91e9092 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c
index 3f81dd17755c..fbcca59a0517 100644
--- a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c
+++ b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c
@@ -494,7 +494,7 @@ static int rotate_start_streaming(struct vb2_queue *vq, unsigned int count)
struct device *dev = ctx->dev->dev;
int ret;
- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret < 0) {
dev_err(dev, "Failed to enable module\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 131/700] media: sti/bdisp: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (129 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 130/700] media: sunxi: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 132/700] media: exynos4-is: " Greg Kroah-Hartman
` (574 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit c44eac5b72e23c31eefc0e10a71d9650036b8341 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
The bdisp_start_streaming() doesn't take it into account, which
would unbalance PM usage counter at bdisp_stop_streaming().
The logic at bdisp_probe() is correct, but the best is to use
the same call along the driver.
So, replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/sti/bdisp/bdisp-v4l2.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
index 060ca85f64d5..85288da9d2ae 100644
--- a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
+++ b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
@@ -499,7 +499,7 @@ static int bdisp_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct bdisp_ctx *ctx = q->drv_priv;
struct vb2_v4l2_buffer *buf;
- int ret = pm_runtime_get_sync(ctx->bdisp_dev->dev);
+ int ret = pm_runtime_resume_and_get(ctx->bdisp_dev->dev);
if (ret < 0) {
dev_err(ctx->bdisp_dev->dev, "failed to set runtime PM\n");
@@ -1364,10 +1364,10 @@ static int bdisp_probe(struct platform_device *pdev)
/* Power management */
pm_runtime_enable(dev);
- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret < 0) {
dev_err(dev, "failed to set PM\n");
- goto err_pm;
+ goto err_remove;
}
/* Filters */
@@ -1395,6 +1395,7 @@ err_filter:
bdisp_hw_free_filters(bdisp->dev);
err_pm:
pm_runtime_put(dev);
+err_remove:
bdisp_debugfs_remove(bdisp);
v4l2_device_unregister(&bdisp->v4l2_dev);
err_clk:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 132/700] media: exynos4-is: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (130 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 131/700] media: sti/bdisp: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 133/700] media: exynos-gsc: " Greg Kroah-Hartman
` (573 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sylwester Nawrocki,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 59f96244af9403ddf4810ec5c0fbe8920857634e ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
On some places, this is ok, but on others the usage count
ended being unbalanced on failures.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
As a bonus, such function always return zero on success. So,
some code can be simplified.
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/exynos4-is/fimc-capture.c | 6 ++----
drivers/media/platform/exynos4-is/fimc-is.c | 4 ++--
drivers/media/platform/exynos4-is/fimc-isp-video.c | 3 +--
drivers/media/platform/exynos4-is/fimc-isp.c | 7 +++----
drivers/media/platform/exynos4-is/fimc-lite.c | 5 +++--
drivers/media/platform/exynos4-is/fimc-m2m.c | 5 +----
drivers/media/platform/exynos4-is/media-dev.c | 9 +++------
drivers/media/platform/exynos4-is/mipi-csis.c | 10 ++++------
8 files changed, 19 insertions(+), 30 deletions(-)
diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c
index 13c838d3f947..0da36443173c 100644
--- a/drivers/media/platform/exynos4-is/fimc-capture.c
+++ b/drivers/media/platform/exynos4-is/fimc-capture.c
@@ -478,11 +478,9 @@ static int fimc_capture_open(struct file *file)
goto unlock;
set_bit(ST_CAPT_BUSY, &fimc->state);
- ret = pm_runtime_get_sync(&fimc->pdev->dev);
- if (ret < 0) {
- pm_runtime_put_sync(&fimc->pdev->dev);
+ ret = pm_runtime_resume_and_get(&fimc->pdev->dev);
+ if (ret < 0)
goto unlock;
- }
ret = v4l2_fh_open(file);
if (ret) {
diff --git a/drivers/media/platform/exynos4-is/fimc-is.c b/drivers/media/platform/exynos4-is/fimc-is.c
index 972d9601d236..1b24f5bfc4af 100644
--- a/drivers/media/platform/exynos4-is/fimc-is.c
+++ b/drivers/media/platform/exynos4-is/fimc-is.c
@@ -828,9 +828,9 @@ static int fimc_is_probe(struct platform_device *pdev)
goto err_irq;
}
- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret < 0)
- goto err_pm;
+ goto err_irq;
vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32));
diff --git a/drivers/media/platform/exynos4-is/fimc-isp-video.c b/drivers/media/platform/exynos4-is/fimc-isp-video.c
index 612b9872afc8..8d9dc597deaa 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c
@@ -275,7 +275,7 @@ static int isp_video_open(struct file *file)
if (ret < 0)
goto unlock;
- ret = pm_runtime_get_sync(&isp->pdev->dev);
+ ret = pm_runtime_resume_and_get(&isp->pdev->dev);
if (ret < 0)
goto rel_fh;
@@ -293,7 +293,6 @@ static int isp_video_open(struct file *file)
if (!ret)
goto unlock;
rel_fh:
- pm_runtime_put_noidle(&isp->pdev->dev);
v4l2_fh_release(file);
unlock:
mutex_unlock(&isp->video_lock);
diff --git a/drivers/media/platform/exynos4-is/fimc-isp.c b/drivers/media/platform/exynos4-is/fimc-isp.c
index a77c49b18511..74b49d30901e 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp.c
@@ -304,11 +304,10 @@ static int fimc_isp_subdev_s_power(struct v4l2_subdev *sd, int on)
pr_debug("on: %d\n", on);
if (on) {
- ret = pm_runtime_get_sync(&is->pdev->dev);
- if (ret < 0) {
- pm_runtime_put(&is->pdev->dev);
+ ret = pm_runtime_resume_and_get(&is->pdev->dev);
+ if (ret < 0)
return ret;
- }
+
set_bit(IS_ST_PWR_ON, &is->state);
ret = fimc_is_start_firmware(is);
diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
index fe20af3a7178..4d8b18078ff3 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite.c
@@ -469,9 +469,9 @@ static int fimc_lite_open(struct file *file)
}
set_bit(ST_FLITE_IN_USE, &fimc->state);
- ret = pm_runtime_get_sync(&fimc->pdev->dev);
+ ret = pm_runtime_resume_and_get(&fimc->pdev->dev);
if (ret < 0)
- goto err_pm;
+ goto err_in_use;
ret = v4l2_fh_open(file);
if (ret < 0)
@@ -499,6 +499,7 @@ static int fimc_lite_open(struct file *file)
v4l2_fh_release(file);
err_pm:
pm_runtime_put_sync(&fimc->pdev->dev);
+err_in_use:
clear_bit(ST_FLITE_IN_USE, &fimc->state);
unlock:
mutex_unlock(&fimc->lock);
diff --git a/drivers/media/platform/exynos4-is/fimc-m2m.c b/drivers/media/platform/exynos4-is/fimc-m2m.c
index c9704a147e5c..df8e2aa454d8 100644
--- a/drivers/media/platform/exynos4-is/fimc-m2m.c
+++ b/drivers/media/platform/exynos4-is/fimc-m2m.c
@@ -73,17 +73,14 @@ static void fimc_m2m_shutdown(struct fimc_ctx *ctx)
static int start_streaming(struct vb2_queue *q, unsigned int count)
{
struct fimc_ctx *ctx = q->drv_priv;
- int ret;
- ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
- return ret > 0 ? 0 : ret;
+ return pm_runtime_resume_and_get(&ctx->fimc_dev->pdev->dev);
}
static void stop_streaming(struct vb2_queue *q)
{
struct fimc_ctx *ctx = q->drv_priv;
-
fimc_m2m_shutdown(ctx);
fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
pm_runtime_put(&ctx->fimc_dev->pdev->dev);
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 8e1e892085ec..4424050a22e4 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -510,11 +510,9 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
if (!fmd->pmf)
return -ENXIO;
- ret = pm_runtime_get_sync(fmd->pmf);
- if (ret < 0) {
- pm_runtime_put(fmd->pmf);
+ ret = pm_runtime_resume_and_get(fmd->pmf);
+ if (ret < 0)
return ret;
- }
fmd->num_sensors = 0;
@@ -1289,8 +1287,7 @@ static int cam_clk_prepare(struct clk_hw *hw)
if (camclk->fmd->pmf == NULL)
return -ENODEV;
- ret = pm_runtime_get_sync(camclk->fmd->pmf);
- return ret < 0 ? ret : 0;
+ return pm_runtime_resume_and_get(camclk->fmd->pmf);
}
static void cam_clk_unprepare(struct clk_hw *hw)
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index 1aac167abb17..ebf39c856894 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -494,7 +494,7 @@ static int s5pcsis_s_power(struct v4l2_subdev *sd, int on)
struct device *dev = &state->pdev->dev;
if (on)
- return pm_runtime_get_sync(dev);
+ return pm_runtime_resume_and_get(dev);
return pm_runtime_put_sync(dev);
}
@@ -509,11 +509,9 @@ static int s5pcsis_s_stream(struct v4l2_subdev *sd, int enable)
if (enable) {
s5pcsis_clear_counters(state);
- ret = pm_runtime_get_sync(&state->pdev->dev);
- if (ret && ret != 1) {
- pm_runtime_put_noidle(&state->pdev->dev);
+ ret = pm_runtime_resume_and_get(&state->pdev->dev);
+ if (ret < 0)
return ret;
- }
}
mutex_lock(&state->lock);
@@ -535,7 +533,7 @@ unlock:
if (!enable)
pm_runtime_put(&state->pdev->dev);
- return ret == 1 ? 0 : ret;
+ return ret;
}
static int s5pcsis_enum_mbus_code(struct v4l2_subdev *sd,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 133/700] media: exynos-gsc: fix pm_runtime_get_sync() usage count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (131 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 132/700] media: exynos4-is: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 134/700] spi: spi-loopback-test: Fix tx_buf might be rx_buf Greg Kroah-Hartman
` (572 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Sylwester Nawrocki,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 59087b66ea6730c130c57d23bd9fd139b78c1ba5 ]
The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter, avoiding
a potential PM usage counter leak.
As a bonus, as pm_runtime_get_sync() always return 0 on
success, the logic can be simplified.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/exynos-gsc/gsc-m2m.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index 27a3c92c73bc..f1cf847d1cc2 100644
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -56,10 +56,8 @@ static void __gsc_m2m_job_abort(struct gsc_ctx *ctx)
static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct gsc_ctx *ctx = q->drv_priv;
- int ret;
- ret = pm_runtime_get_sync(&ctx->gsc_dev->pdev->dev);
- return ret > 0 ? 0 : ret;
+ return pm_runtime_resume_and_get(&ctx->gsc_dev->pdev->dev);
}
static void __gsc_m2m_cleanup_queue(struct gsc_ctx *ctx)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 134/700] spi: spi-loopback-test: Fix tx_buf might be rx_buf
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (132 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 133/700] media: exynos-gsc: " Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 135/700] spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages() Greg Kroah-Hartman
` (571 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jay Fang, Mark Brown, Sasha Levin
From: Jay Fang <f.fangjian@huawei.com>
[ Upstream commit 9e37a3ab0627011fb63875e9a93094b6fc8ddf48 ]
In function 'spi_test_run_iter': Value 'tx_buf' might be 'rx_buf'.
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1620629903-15493-5-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-loopback-test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
index df981e55c24c..89b91cdfb2a5 100644
--- a/drivers/spi/spi-loopback-test.c
+++ b/drivers/spi/spi-loopback-test.c
@@ -874,7 +874,7 @@ static int spi_test_run_iter(struct spi_device *spi,
test.transfers[i].len = len;
if (test.transfers[i].tx_buf)
test.transfers[i].tx_buf += tx_off;
- if (test.transfers[i].tx_buf)
+ if (test.transfers[i].rx_buf)
test.transfers[i].rx_buf += rx_off;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 135/700] spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (133 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 134/700] spi: spi-loopback-test: Fix tx_buf might be rx_buf Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 136/700] spi: omap-100k: Fix the length judgment problem Greg Kroah-Hartman
` (570 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jay Fang, Mark Brown, Sasha Levin
From: Jay Fang <f.fangjian@huawei.com>
[ Upstream commit 026a1dc1af52742c5897e64a3431445371a71871 ]
pch_spi_set_tx() frees data->pkt_tx_buff on failure of kzalloc() for
data->pkt_rx_buff, but its caller, pch_spi_process_messages(), will
free data->pkt_tx_buff again. Set data->pkt_tx_buff to NULL after
kfree() to avoid double free.
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1620284888-65215-1-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-topcliff-pch.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index b459e369079f..7fb020a1d66a 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -580,8 +580,10 @@ static void pch_spi_set_tx(struct pch_spi_data *data, int *bpw)
data->pkt_tx_buff = kzalloc(size, GFP_KERNEL);
if (data->pkt_tx_buff != NULL) {
data->pkt_rx_buff = kzalloc(size, GFP_KERNEL);
- if (!data->pkt_rx_buff)
+ if (!data->pkt_rx_buff) {
kfree(data->pkt_tx_buff);
+ data->pkt_tx_buff = NULL;
+ }
}
if (!data->pkt_rx_buff) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 136/700] spi: omap-100k: Fix the length judgment problem
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (134 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 135/700] spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages() Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 137/700] regulator: uniphier: Add missing MODULE_DEVICE_TABLE Greg Kroah-Hartman
` (569 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tian Tao, Mark Brown, Sasha Levin
From: Tian Tao <tiantao6@hisilicon.com>
[ Upstream commit e7a1a3abea373e41ba7dfe0fbc93cb79b6a3a529 ]
word_len should be checked in the omap1_spi100k_setup_transfer
function to see if it exceeds 32.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Link: https://lore.kernel.org/r/1619695248-39045-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-omap-100k.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index ccd817ee4917..0d0cd061d356 100644
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -241,7 +241,7 @@ static int omap1_spi100k_setup_transfer(struct spi_device *spi,
else
word_len = spi->bits_per_word;
- if (spi->bits_per_word > 32)
+ if (word_len > 32)
return -EINVAL;
cs->word_len = word_len;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 137/700] regulator: uniphier: Add missing MODULE_DEVICE_TABLE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (135 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 136/700] spi: omap-100k: Fix the length judgment problem Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 138/700] sched/core: Initialize the idle task with preemption disabled Greg Kroah-Hartman
` (568 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zou Wei, Mark Brown, Sasha Levin
From: Zou Wei <zou_wei@huawei.com>
[ Upstream commit d019f38a1af3c6015cde6a47951a3ec43beeed80 ]
This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1620705198-104566-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/uniphier-regulator.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/regulator/uniphier-regulator.c b/drivers/regulator/uniphier-regulator.c
index 2e02e26b516c..e75b0973e325 100644
--- a/drivers/regulator/uniphier-regulator.c
+++ b/drivers/regulator/uniphier-regulator.c
@@ -201,6 +201,7 @@ static const struct of_device_id uniphier_regulator_match[] = {
},
{ /* Sentinel */ },
};
+MODULE_DEVICE_TABLE(of, uniphier_regulator_match);
static struct platform_driver uniphier_regulator_driver = {
.probe = uniphier_regulator_probe,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 138/700] sched/core: Initialize the idle task with preemption disabled
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (136 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 137/700] regulator: uniphier: Add missing MODULE_DEVICE_TABLE Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 139/700] hwrng: exynos - Fix runtime PM imbalance on error Greg Kroah-Hartman
` (567 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Valentin Schneider, Ingo Molnar,
Peter Zijlstra, Sasha Levin
From: Valentin Schneider <valentin.schneider@arm.com>
[ Upstream commit f1a0a376ca0c4ef1fc3d24e3e502acbb5b795674 ]
As pointed out by commit
de9b8f5dcbd9 ("sched: Fix crash trying to dequeue/enqueue the idle thread")
init_idle() can and will be invoked more than once on the same idle
task. At boot time, it is invoked for the boot CPU thread by
sched_init(). Then smp_init() creates the threads for all the secondary
CPUs and invokes init_idle() on them.
As the hotplug machinery brings the secondaries to life, it will issue
calls to idle_thread_get(), which itself invokes init_idle() yet again.
In this case it's invoked twice more per secondary: at _cpu_up(), and at
bringup_cpu().
Given smp_init() already initializes the idle tasks for all *possible*
CPUs, no further initialization should be required. Now, removing
init_idle() from idle_thread_get() exposes some interesting expectations
with regards to the idle task's preempt_count: the secondary startup always
issues a preempt_disable(), requiring some reset of the preempt count to 0
between hot-unplug and hotplug, which is currently served by
idle_thread_get() -> idle_init().
Given the idle task is supposed to have preemption disabled once and never
see it re-enabled, it seems that what we actually want is to initialize its
preempt_count to PREEMPT_DISABLED and leave it there. Do that, and remove
init_idle() from idle_thread_get().
Secondary startups were patched via coccinelle:
@begone@
@@
-preempt_disable();
...
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210512094636.2958515-1-valentin.schneider@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/alpha/kernel/smp.c | 1 -
arch/arc/kernel/smp.c | 1 -
arch/arm/kernel/smp.c | 1 -
arch/arm64/include/asm/preempt.h | 2 +-
arch/arm64/kernel/smp.c | 1 -
arch/csky/kernel/smp.c | 1 -
arch/ia64/kernel/smpboot.c | 1 -
arch/mips/kernel/smp.c | 1 -
arch/openrisc/kernel/smp.c | 2 --
arch/parisc/kernel/smp.c | 1 -
arch/powerpc/kernel/smp.c | 1 -
arch/riscv/kernel/smpboot.c | 1 -
arch/s390/include/asm/preempt.h | 4 ++--
arch/s390/kernel/smp.c | 1 -
arch/sh/kernel/smp.c | 2 --
arch/sparc/kernel/smp_32.c | 1 -
arch/sparc/kernel/smp_64.c | 3 ---
arch/x86/include/asm/preempt.h | 2 +-
arch/x86/kernel/smpboot.c | 1 -
arch/xtensa/kernel/smp.c | 1 -
include/asm-generic/preempt.h | 2 +-
init/main.c | 6 +-----
kernel/fork.c | 2 +-
kernel/sched/core.c | 2 +-
kernel/smpboot.c | 1 -
25 files changed, 8 insertions(+), 34 deletions(-)
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index f4dd9f3f3001..4b2575f936d4 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -166,7 +166,6 @@ smp_callin(void)
DBGS(("smp_callin: commencing CPU %d current %p active_mm %p\n",
cpuid, current, current->active_mm));
- preempt_disable();
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
}
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 52906d314537..db0e104d6835 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -189,7 +189,6 @@ void start_kernel_secondary(void)
pr_info("## CPU%u LIVE ##: Executing Code...\n", cpu);
local_irq_enable();
- preempt_disable();
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
}
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 74679240a9d8..c7bb168b0d97 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -432,7 +432,6 @@ asmlinkage void secondary_start_kernel(void)
#endif
pr_debug("CPU%u: Booted secondary processor\n", cpu);
- preempt_disable();
trace_hardirqs_off();
/*
diff --git a/arch/arm64/include/asm/preempt.h b/arch/arm64/include/asm/preempt.h
index 80e946b2abee..e83f0982b99c 100644
--- a/arch/arm64/include/asm/preempt.h
+++ b/arch/arm64/include/asm/preempt.h
@@ -23,7 +23,7 @@ static inline void preempt_count_set(u64 pc)
} while (0)
#define init_idle_preempt_count(p, cpu) do { \
- task_thread_info(p)->preempt_count = PREEMPT_ENABLED; \
+ task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
} while (0)
static inline void set_preempt_need_resched(void)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 357590beaabb..48fd89256739 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -223,7 +223,6 @@ asmlinkage notrace void secondary_start_kernel(void)
init_gic_priority_masking();
rcu_cpu_starting(cpu);
- preempt_disable();
trace_hardirqs_off();
/*
diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index 0f9f5eef9338..e2993539af8e 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c
@@ -281,7 +281,6 @@ void csky_start_secondary(void)
pr_info("CPU%u Online: %s...\n", cpu, __func__);
local_irq_enable();
- preempt_disable();
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
}
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 49b488580939..d10f780c13b9 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -441,7 +441,6 @@ start_secondary (void *unused)
#endif
efi_map_pal_code();
cpu_init();
- preempt_disable();
smp_callin();
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index ef86fbad8546..d542fb7af3ba 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -348,7 +348,6 @@ asmlinkage void start_secondary(void)
*/
calibrate_delay();
- preempt_disable();
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
index 48e1092a64de..415e209732a3 100644
--- a/arch/openrisc/kernel/smp.c
+++ b/arch/openrisc/kernel/smp.c
@@ -145,8 +145,6 @@ asmlinkage __init void secondary_start_kernel(void)
set_cpu_online(cpu, true);
local_irq_enable();
-
- preempt_disable();
/*
* OK, it's off to the idle thread for us
*/
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 10227f667c8a..1405b603b91b 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -302,7 +302,6 @@ void __init smp_callin(unsigned long pdce_proc)
#endif
smp_cpu_init(slave_id);
- preempt_disable();
flush_cache_all_local(); /* start with known state */
flush_tlb_all_local(NULL);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index c2473e20f5f5..1d7daef1c3b6 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1530,7 +1530,6 @@ void start_secondary(void *unused)
smp_store_cpu_info(cpu);
set_dec(tb_ticks_per_jiffy);
rcu_cpu_starting(cpu);
- preempt_disable();
cpu_callin_map[cpu] = 1;
if (smp_ops->setup_cpu)
diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c
index 5e276c25646f..1941a6ce86a1 100644
--- a/arch/riscv/kernel/smpboot.c
+++ b/arch/riscv/kernel/smpboot.c
@@ -176,7 +176,6 @@ asmlinkage __visible void smp_callin(void)
* Disable preemption before enabling interrupts, so we don't try to
* schedule a CPU that hasn't actually started yet.
*/
- preempt_disable();
local_irq_enable();
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
}
diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h
index b49e0492842c..23ff51be7e29 100644
--- a/arch/s390/include/asm/preempt.h
+++ b/arch/s390/include/asm/preempt.h
@@ -32,7 +32,7 @@ static inline void preempt_count_set(int pc)
#define init_task_preempt_count(p) do { } while (0)
#define init_idle_preempt_count(p, cpu) do { \
- S390_lowcore.preempt_count = PREEMPT_ENABLED; \
+ S390_lowcore.preempt_count = PREEMPT_DISABLED; \
} while (0)
static inline void set_preempt_need_resched(void)
@@ -91,7 +91,7 @@ static inline void preempt_count_set(int pc)
#define init_task_preempt_count(p) do { } while (0)
#define init_idle_preempt_count(p, cpu) do { \
- S390_lowcore.preempt_count = PREEMPT_ENABLED; \
+ S390_lowcore.preempt_count = PREEMPT_DISABLED; \
} while (0)
static inline void set_preempt_need_resched(void)
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 58c8afa3da65..d60c7374d807 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -877,7 +877,6 @@ static void smp_init_secondary(void)
restore_access_regs(S390_lowcore.access_regs_save_area);
cpu_init();
rcu_cpu_starting(cpu);
- preempt_disable();
init_cpu_timer();
vtime_init();
vdso_getcpu_init();
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 372acdc9033e..65924d9ec245 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -186,8 +186,6 @@ asmlinkage void start_secondary(void)
per_cpu_trap_init();
- preempt_disable();
-
notify_cpu_starting(cpu);
local_irq_enable();
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index 50c127ab46d5..22b148e5a5f8 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -348,7 +348,6 @@ static void sparc_start_secondary(void *arg)
*/
arch_cpu_pre_starting(arg);
- preempt_disable();
cpu = smp_processor_id();
notify_cpu_starting(cpu);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index e38d8bf454e8..ae5faa1d989d 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -138,9 +138,6 @@ void smp_callin(void)
set_cpu_online(cpuid, true);
- /* idle thread is expected to have preempt disabled */
- preempt_disable();
-
local_irq_enable();
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index f8cb8af4de5c..fe5efbcba824 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -44,7 +44,7 @@ static __always_inline void preempt_count_set(int pc)
#define init_task_preempt_count(p) do { } while (0)
#define init_idle_preempt_count(p, cpu) do { \
- per_cpu(__preempt_count, (cpu)) = PREEMPT_ENABLED; \
+ per_cpu(__preempt_count, (cpu)) = PREEMPT_DISABLED; \
} while (0)
/*
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 363b36bbd791..ebc4b13b74a4 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -236,7 +236,6 @@ static void notrace start_secondary(void *unused)
cpu_init();
rcu_cpu_starting(raw_smp_processor_id());
x86_cpuinit.early_percpu_clock_init();
- preempt_disable();
smp_callin();
enable_start_cpu0 = 0;
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index cd85a7a2722b..1254da07ead1 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -145,7 +145,6 @@ void secondary_start_kernel(void)
cpumask_set_cpu(cpu, mm_cpumask(mm));
enter_lazy_tlb(mm, current);
- preempt_disable();
trace_hardirqs_off();
calibrate_delay();
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index d683f5e6d791..b4d43a4af5f7 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -29,7 +29,7 @@ static __always_inline void preempt_count_set(int pc)
} while (0)
#define init_idle_preempt_count(p, cpu) do { \
- task_thread_info(p)->preempt_count = PREEMPT_ENABLED; \
+ task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
} while (0)
static __always_inline void set_preempt_need_resched(void)
diff --git a/init/main.c b/init/main.c
index 5bd1a25f1d6f..c97d3c0247a1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -918,11 +918,7 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
* time - but meanwhile we still have a functioning scheduler.
*/
sched_init();
- /*
- * Disable preemption - early bootup scheduling is extremely
- * fragile until we cpu_idle() for the first time.
- */
- preempt_disable();
+
if (WARN(!irqs_disabled(),
"Interrupts were enabled *very* early, fixing it\n"))
local_irq_disable();
diff --git a/kernel/fork.c b/kernel/fork.c
index 321a5e31d817..2654a5a9e5df 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2405,7 +2405,7 @@ static inline void init_idle_pids(struct task_struct *idle)
}
}
-struct task_struct *fork_idle(int cpu)
+struct task_struct * __init fork_idle(int cpu)
{
struct task_struct *task;
struct kernel_clone_args args = {
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 814200541f8f..e25b2d8ec18d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7428,7 +7428,7 @@ void show_state_filter(unsigned long state_filter)
* NOTE: this function does not set the idle thread's NEED_RESCHED
* flag, to make booting more robust.
*/
-void init_idle(struct task_struct *idle, int cpu)
+void __init init_idle(struct task_struct *idle, int cpu)
{
struct rq *rq = cpu_rq(cpu);
unsigned long flags;
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index f25208e8df83..e4163042c4d6 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -33,7 +33,6 @@ struct task_struct *idle_thread_get(unsigned int cpu)
if (!tsk)
return ERR_PTR(-ENOMEM);
- init_idle(tsk, cpu);
return tsk;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 139/700] hwrng: exynos - Fix runtime PM imbalance on error
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (137 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 138/700] sched/core: Initialize the idle task with preemption disabled Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 140/700] crypto: nx - add missing MODULE_DEVICE_TABLE Greg Kroah-Hartman
` (566 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Łukasz Stelmach,
Krzysztof Kozlowski, Herbert Xu, Sasha Levin
From: Łukasz Stelmach <l.stelmach@samsung.com>
[ Upstream commit 0cdbabf8bb7a6147f5adf37dbc251e92a1bbc2c7 ]
pm_runtime_resume_and_get() wraps around pm_runtime_get_sync() and
decrements the runtime PM usage counter in case the latter function
fails and keeps the counter balanced.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/hw_random/exynos-trng.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/char/hw_random/exynos-trng.c b/drivers/char/hw_random/exynos-trng.c
index 8e1fe3f8dd2d..c8db62bc5ff7 100644
--- a/drivers/char/hw_random/exynos-trng.c
+++ b/drivers/char/hw_random/exynos-trng.c
@@ -132,7 +132,7 @@ static int exynos_trng_probe(struct platform_device *pdev)
return PTR_ERR(trng->mem);
pm_runtime_enable(&pdev->dev);
- ret = pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "Could not get runtime PM.\n");
goto err_pm_get;
@@ -165,7 +165,7 @@ err_register:
clk_disable_unprepare(trng->clk);
err_clock:
- pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_put_noidle(&pdev->dev);
err_pm_get:
pm_runtime_disable(&pdev->dev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 140/700] crypto: nx - add missing MODULE_DEVICE_TABLE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (138 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 139/700] hwrng: exynos - Fix runtime PM imbalance on error Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 141/700] media: sti: fix obj-$(config) targets Greg Kroah-Hartman
` (565 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Bixuan Cui, Herbert Xu,
Sasha Levin
From: Bixuan Cui <cuibixuan@huawei.com>
[ Upstream commit 06676aa1f455c74e3ad1624cea3acb9ed2ef71ae ]
This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/nx/nx-842-pseries.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/crypto/nx/nx-842-pseries.c b/drivers/crypto/nx/nx-842-pseries.c
index cc8dd3072b8b..8ee547ee378e 100644
--- a/drivers/crypto/nx/nx-842-pseries.c
+++ b/drivers/crypto/nx/nx-842-pseries.c
@@ -1069,6 +1069,7 @@ static const struct vio_device_id nx842_vio_driver_ids[] = {
{"ibm,compression-v1", "ibm,compression"},
{"", ""},
};
+MODULE_DEVICE_TABLE(vio, nx842_vio_driver_ids);
static struct vio_driver nx842_vio_driver = {
.name = KBUILD_MODNAME,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 141/700] media: sti: fix obj-$(config) targets
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (139 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 140/700] crypto: nx - add missing MODULE_DEVICE_TABLE Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 142/700] sched: Make the idle task quack like a per-CPU kthread Greg Kroah-Hartman
` (564 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 56c1f0876293888f686e31278d183d4af2cac3c3 ]
The right thing to do is to add a new object to the building
system when a certain config option is selected, and *not*
override them.
So, fix obj-$(config) logic at sti makefiles, using "+=",
instead of ":=".
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/sti/bdisp/Makefile | 2 +-
drivers/media/platform/sti/delta/Makefile | 2 +-
drivers/media/platform/sti/hva/Makefile | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/sti/bdisp/Makefile b/drivers/media/platform/sti/bdisp/Makefile
index caf7ccd193ea..39ade0a34723 100644
--- a/drivers/media/platform/sti/bdisp/Makefile
+++ b/drivers/media/platform/sti/bdisp/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_VIDEO_STI_BDISP) := bdisp.o
+obj-$(CONFIG_VIDEO_STI_BDISP) += bdisp.o
bdisp-objs := bdisp-v4l2.o bdisp-hw.o bdisp-debug.o
diff --git a/drivers/media/platform/sti/delta/Makefile b/drivers/media/platform/sti/delta/Makefile
index 92b37e216f00..32412fa4c632 100644
--- a/drivers/media/platform/sti/delta/Makefile
+++ b/drivers/media/platform/sti/delta/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_VIDEO_STI_DELTA_DRIVER) := st-delta.o
+obj-$(CONFIG_VIDEO_STI_DELTA_DRIVER) += st-delta.o
st-delta-y := delta-v4l2.o delta-mem.o delta-ipc.o delta-debug.o
# MJPEG support
diff --git a/drivers/media/platform/sti/hva/Makefile b/drivers/media/platform/sti/hva/Makefile
index 74b41ec52f97..b5a5478bdd01 100644
--- a/drivers/media/platform/sti/hva/Makefile
+++ b/drivers/media/platform/sti/hva/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_VIDEO_STI_HVA) := st-hva.o
+obj-$(CONFIG_VIDEO_STI_HVA) += st-hva.o
st-hva-y := hva-v4l2.o hva-hw.o hva-mem.o hva-h264.o
st-hva-$(CONFIG_VIDEO_STI_HVA_DEBUGFS) += hva-debugfs.o
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 142/700] sched: Make the idle task quack like a per-CPU kthread
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (140 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 141/700] media: sti: fix obj-$(config) targets Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 143/700] media: cpia2: fix memory leak in cpia2_usb_probe Greg Kroah-Hartman
` (563 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Valentin Schneider,
Peter Zijlstra (Intel),
Sasha Levin
From: Valentin Schneider <valentin.schneider@arm.com>
[ Upstream commit 00b89fe0197f0c55a045775c11553c0cdb7082fe ]
For all intents and purposes, the idle task is a per-CPU kthread. It isn't
created via the same route as other pcpu kthreads however, and as a result
it is missing a few bells and whistles: it fails kthread_is_per_cpu() and
it doesn't have PF_NO_SETAFFINITY set.
Fix the former by giving the idle task a kthread struct along with the
KTHREAD_IS_PER_CPU flag. This requires some extra iffery as init_idle()
call be called more than once on the same idle task.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210510151024.2448573-2-valentin.schneider@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/kthread.h | 2 ++
kernel/kthread.c | 30 ++++++++++++++++++------------
kernel/sched/core.c | 21 +++++++++++++++------
3 files changed, 35 insertions(+), 18 deletions(-)
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 2484ed97e72f..d9133d6db308 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -33,6 +33,8 @@ struct task_struct *kthread_create_on_cpu(int (*threadfn)(void *data),
unsigned int cpu,
const char *namefmt);
+void set_kthread_struct(struct task_struct *p);
+
void kthread_set_per_cpu(struct task_struct *k, int cpu);
bool kthread_is_per_cpu(struct task_struct *k);
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 4fdf2bd9b558..e8da89c714f5 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -68,16 +68,6 @@ enum KTHREAD_BITS {
KTHREAD_SHOULD_PARK,
};
-static inline void set_kthread_struct(void *kthread)
-{
- /*
- * We abuse ->set_child_tid to avoid the new member and because it
- * can't be wrongly copied by copy_process(). We also rely on fact
- * that the caller can't exec, so PF_KTHREAD can't be cleared.
- */
- current->set_child_tid = (__force void __user *)kthread;
-}
-
static inline struct kthread *to_kthread(struct task_struct *k)
{
WARN_ON(!(k->flags & PF_KTHREAD));
@@ -103,6 +93,22 @@ static inline struct kthread *__to_kthread(struct task_struct *p)
return kthread;
}
+void set_kthread_struct(struct task_struct *p)
+{
+ struct kthread *kthread;
+
+ if (__to_kthread(p))
+ return;
+
+ kthread = kzalloc(sizeof(*kthread), GFP_KERNEL);
+ /*
+ * We abuse ->set_child_tid to avoid the new member and because it
+ * can't be wrongly copied by copy_process(). We also rely on fact
+ * that the caller can't exec, so PF_KTHREAD can't be cleared.
+ */
+ p->set_child_tid = (__force void __user *)kthread;
+}
+
void free_kthread_struct(struct task_struct *k)
{
struct kthread *kthread;
@@ -272,8 +278,8 @@ static int kthread(void *_create)
struct kthread *self;
int ret;
- self = kzalloc(sizeof(*self), GFP_KERNEL);
- set_kthread_struct(self);
+ set_kthread_struct(current);
+ self = to_kthread(current);
/* If user was SIGKILLed, I release the structure. */
done = xchg(&create->done, NULL);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e25b2d8ec18d..17f612045271 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7435,12 +7435,25 @@ void __init init_idle(struct task_struct *idle, int cpu)
__sched_fork(0, idle);
+ /*
+ * The idle task doesn't need the kthread struct to function, but it
+ * is dressed up as a per-CPU kthread and thus needs to play the part
+ * if we want to avoid special-casing it in code that deals with per-CPU
+ * kthreads.
+ */
+ set_kthread_struct(idle);
+
raw_spin_lock_irqsave(&idle->pi_lock, flags);
raw_spin_lock(&rq->lock);
idle->state = TASK_RUNNING;
idle->se.exec_start = sched_clock();
- idle->flags |= PF_IDLE;
+ /*
+ * PF_KTHREAD should already be set at this point; regardless, make it
+ * look like a proper per-CPU kthread.
+ */
+ idle->flags |= PF_IDLE | PF_KTHREAD | PF_NO_SETAFFINITY;
+ kthread_set_per_cpu(idle, cpu);
scs_task_reset(idle);
kasan_unpoison_task_stack(idle);
@@ -7647,12 +7660,8 @@ static void balance_push(struct rq *rq)
/*
* Both the cpu-hotplug and stop task are in this case and are
* required to complete the hotplug process.
- *
- * XXX: the idle task does not match kthread_is_per_cpu() due to
- * histerical raisins.
*/
- if (rq->idle == push_task ||
- kthread_is_per_cpu(push_task) ||
+ if (kthread_is_per_cpu(push_task) ||
is_migration_disabled(push_task)) {
/*
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 143/700] media: cpia2: fix memory leak in cpia2_usb_probe
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (141 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 142/700] sched: Make the idle task quack like a per-CPU kthread Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 144/700] media: cobalt: fix race condition in setting HPD Greg Kroah-Hartman
` (562 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+d1e69c888f0d3866ead4,
Pavel Skripkin, Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit be8656e62e9e791837b606a027802b504a945c97 ]
syzbot reported leak in cpia2 usb driver. The problem was
in invalid error handling.
v4l2_device_register() is called in cpia2_init_camera_struct(), but
all error cases after cpia2_init_camera_struct() did not call the
v4l2_device_unregister()
Reported-by: syzbot+d1e69c888f0d3866ead4@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/cpia2/cpia2.h | 1 +
drivers/media/usb/cpia2/cpia2_core.c | 12 ++++++++++++
drivers/media/usb/cpia2/cpia2_usb.c | 13 +++++++------
3 files changed, 20 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/cpia2/cpia2.h b/drivers/media/usb/cpia2/cpia2.h
index 50835f5f7512..57b7f1ea68da 100644
--- a/drivers/media/usb/cpia2/cpia2.h
+++ b/drivers/media/usb/cpia2/cpia2.h
@@ -429,6 +429,7 @@ int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd);
int cpia2_do_command(struct camera_data *cam,
unsigned int command,
unsigned char direction, unsigned char param);
+void cpia2_deinit_camera_struct(struct camera_data *cam, struct usb_interface *intf);
struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf);
int cpia2_init_camera(struct camera_data *cam);
int cpia2_allocate_buffers(struct camera_data *cam);
diff --git a/drivers/media/usb/cpia2/cpia2_core.c b/drivers/media/usb/cpia2/cpia2_core.c
index e747548ab286..b5a2d06fb356 100644
--- a/drivers/media/usb/cpia2/cpia2_core.c
+++ b/drivers/media/usb/cpia2/cpia2_core.c
@@ -2163,6 +2163,18 @@ static void reset_camera_struct(struct camera_data *cam)
cam->height = cam->params.roi.height;
}
+/******************************************************************************
+ *
+ * cpia2_init_camera_struct
+ *
+ * Deinitialize camera struct
+ *****************************************************************************/
+void cpia2_deinit_camera_struct(struct camera_data *cam, struct usb_interface *intf)
+{
+ v4l2_device_unregister(&cam->v4l2_dev);
+ kfree(cam);
+}
+
/******************************************************************************
*
* cpia2_init_camera_struct
diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c
index 3ab80a7b4498..76aac06f9fb8 100644
--- a/drivers/media/usb/cpia2/cpia2_usb.c
+++ b/drivers/media/usb/cpia2/cpia2_usb.c
@@ -844,15 +844,13 @@ static int cpia2_usb_probe(struct usb_interface *intf,
ret = set_alternate(cam, USBIF_CMDONLY);
if (ret < 0) {
ERR("%s: usb_set_interface error (ret = %d)\n", __func__, ret);
- kfree(cam);
- return ret;
+ goto alt_err;
}
if((ret = cpia2_init_camera(cam)) < 0) {
ERR("%s: failed to initialize cpia2 camera (ret = %d)\n", __func__, ret);
- kfree(cam);
- return ret;
+ goto alt_err;
}
LOG(" CPiA Version: %d.%02d (%d.%d)\n",
cam->params.version.firmware_revision_hi,
@@ -872,11 +870,14 @@ static int cpia2_usb_probe(struct usb_interface *intf,
ret = cpia2_register_camera(cam);
if (ret < 0) {
ERR("%s: Failed to register cpia2 camera (ret = %d)\n", __func__, ret);
- kfree(cam);
- return ret;
+ goto alt_err;
}
return 0;
+
+alt_err:
+ cpia2_deinit_camera_struct(cam, intf);
+ return ret;
}
/******************************************************************************
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 144/700] media: cobalt: fix race condition in setting HPD
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (142 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 143/700] media: cpia2: fix memory leak in cpia2_usb_probe Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 145/700] media: hevc: Fix dependent slice segment flags Greg Kroah-Hartman
` (561 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hans Verkuil, Mauro Carvalho Chehab,
Sasha Levin
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[ Upstream commit 3d37ef41bed0854805ab9af22c422267510e1344 ]
The cobalt_s_bit_sysctrl reads the old register value over PCI,
then changes a bit and sets writes the new value to the register.
This is used among other things for setting the HPD output pin.
But if the HPD is changed for multiple inputs at the same time,
then this causes a race condition where a stale value is read.
Serialize this function with a mutex.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/cobalt/cobalt-driver.c | 1 +
drivers/media/pci/cobalt/cobalt-driver.h | 7 ++++++-
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/media/pci/cobalt/cobalt-driver.c b/drivers/media/pci/cobalt/cobalt-driver.c
index 0695078ef812..1bd8bbe57a30 100644
--- a/drivers/media/pci/cobalt/cobalt-driver.c
+++ b/drivers/media/pci/cobalt/cobalt-driver.c
@@ -667,6 +667,7 @@ static int cobalt_probe(struct pci_dev *pci_dev,
return -ENOMEM;
cobalt->pci_dev = pci_dev;
cobalt->instance = i;
+ mutex_init(&cobalt->pci_lock);
retval = v4l2_device_register(&pci_dev->dev, &cobalt->v4l2_dev);
if (retval) {
diff --git a/drivers/media/pci/cobalt/cobalt-driver.h b/drivers/media/pci/cobalt/cobalt-driver.h
index bca68572b324..12c33e035904 100644
--- a/drivers/media/pci/cobalt/cobalt-driver.h
+++ b/drivers/media/pci/cobalt/cobalt-driver.h
@@ -251,6 +251,8 @@ struct cobalt {
int instance;
struct pci_dev *pci_dev;
struct v4l2_device v4l2_dev;
+ /* serialize PCI access in cobalt_s_bit_sysctrl() */
+ struct mutex pci_lock;
void __iomem *bar0, *bar1;
@@ -320,10 +322,13 @@ static inline u32 cobalt_g_sysctrl(struct cobalt *cobalt)
static inline void cobalt_s_bit_sysctrl(struct cobalt *cobalt,
int bit, int val)
{
- u32 ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);
+ u32 ctrl;
+ mutex_lock(&cobalt->pci_lock);
+ ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);
cobalt_write_bar1(cobalt, COBALT_SYS_CTRL_BASE,
(ctrl & ~(1UL << bit)) | (val << bit));
+ mutex_unlock(&cobalt->pci_lock);
}
static inline u32 cobalt_g_sysstat(struct cobalt *cobalt)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 145/700] media: hevc: Fix dependent slice segment flags
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (143 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 144/700] media: cobalt: fix race condition in setting HPD Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 146/700] media: pvrusb2: fix warning in pvr2_i2c_core_done Greg Kroah-Hartman
` (560 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jernej Skrabec, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Jernej Skrabec <jernej.skrabec@siol.net>
[ Upstream commit 67a7e53d5b21f3a84efc03a4e62db7caf97841ef ]
Dependent slice segment flag for PPS control is misnamed. It should have
"enabled" at the end. It only tells if this flag is present in slice
header or not and not the actual value.
Fix this by renaming the PPS flag and introduce another flag for slice
control which tells actual value.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 5 ++++-
drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 4 ++--
include/media/hevc-ctrls.h | 3 ++-
3 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 00944e97d638..09f28ba60e6f 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -3285,7 +3285,7 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
:stub-columns: 0
:widths: 1 1 2
- * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT``
+ * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED``
- 0x00000001
-
* - ``V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT``
@@ -3493,6 +3493,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
* - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED``
- 0x00000100
-
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT``
+ - 0x00000200
+ -
.. c:type:: v4l2_hevc_dpb_entry
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
index ce497d0197df..10744fab7cea 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
@@ -477,8 +477,8 @@ static void cedrus_h265_setup(struct cedrus_ctx *ctx,
slice_params->flags);
reg |= VE_DEC_H265_FLAG(VE_DEC_H265_DEC_SLICE_HDR_INFO0_FLAG_DEPENDENT_SLICE_SEGMENT,
- V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT,
- pps->flags);
+ V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT,
+ slice_params->flags);
/* FIXME: For multi-slice support. */
reg |= VE_DEC_H265_DEC_SLICE_HDR_INFO0_FLAG_FIRST_SLICE_SEGMENT_IN_PIC;
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index b4cb2ef02f17..226fcfa0e026 100644
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -81,7 +81,7 @@ struct v4l2_ctrl_hevc_sps {
__u64 flags;
};
-#define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT (1ULL << 0)
+#define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED (1ULL << 0)
#define V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT (1ULL << 1)
#define V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED (1ULL << 2)
#define V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT (1ULL << 3)
@@ -160,6 +160,7 @@ struct v4l2_hevc_pred_weight_table {
#define V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV (1ULL << 6)
#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED (1ULL << 7)
#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 8)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT (1ULL << 9)
struct v4l2_ctrl_hevc_slice_params {
__u32 bit_size;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 146/700] media: pvrusb2: fix warning in pvr2_i2c_core_done
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (144 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 145/700] media: hevc: Fix dependent slice segment flags Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 147/700] media: imx: imx7_mipi_csis: Fix logging of only error event counters Greg Kroah-Hartman
` (559 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+e74a998ca8f1df9cc332,
Anirudh Rayabharam, Hans Verkuil, Mauro Carvalho Chehab,
Sasha Levin
From: Anirudh Rayabharam <mail@anirudhrb.com>
[ Upstream commit f8194e5e63fdcb349e8da9eef9e574d5b1d687cb ]
syzbot has reported the following warning in pvr2_i2c_done:
sysfs group 'power' not found for kobject '1-0043'
When the device is disconnected (pvr_hdw_disconnect), the i2c adapter is
not unregistered along with the USB and v4l2 teardown. As part of the USB
device disconnect, the sysfs files of the subdevices are also deleted.
So, by the time pvr_i2c_core_done is called by pvr_context_destroy, the
sysfs files have been deleted.
To fix this, unregister the i2c adapter too in pvr_hdw_disconnect. Make
the device deregistration code shared by calling pvr_hdw_disconnect from
pvr2_hdw_destroy.
Reported-by: syzbot+e74a998ca8f1df9cc332@syzkaller.appspotmail.com
Tested-by: syzbot+e74a998ca8f1df9cc332@syzkaller.appspotmail.com
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index f4a727918e35..d38dee1792e4 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -2676,9 +2676,8 @@ void pvr2_hdw_destroy(struct pvr2_hdw *hdw)
pvr2_stream_destroy(hdw->vid_stream);
hdw->vid_stream = NULL;
}
- pvr2_i2c_core_done(hdw);
v4l2_device_unregister(&hdw->v4l2_dev);
- pvr2_hdw_remove_usb_stuff(hdw);
+ pvr2_hdw_disconnect(hdw);
mutex_lock(&pvr2_unit_mtx);
do {
if ((hdw->unit_number >= 0) &&
@@ -2705,6 +2704,7 @@ void pvr2_hdw_disconnect(struct pvr2_hdw *hdw)
{
pvr2_trace(PVR2_TRACE_INIT,"pvr2_hdw_disconnect(hdw=%p)",hdw);
LOCK_TAKE(hdw->big_lock);
+ pvr2_i2c_core_done(hdw);
LOCK_TAKE(hdw->ctl_lock);
pvr2_hdw_remove_usb_stuff(hdw);
LOCK_GIVE(hdw->ctl_lock);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 147/700] media: imx: imx7_mipi_csis: Fix logging of only error event counters
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (145 preceding siblings ...)
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@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 148/700] crypto: qat - check return code of qat_hal_rd_rel_reg() Greg Kroah-Hartman
` (558 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Laurent Pinchart, Rui Miguel Silva,
Frieder Schrempf, Mauro Carvalho Chehab, Sasha Levin
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[ Upstream commit d2fcc9c2de1191ea80366e3658711753738dd10a ]
The mipi_csis_events array ends with 6 non-error events, not 4. Update
mipi_csis_log_counters() accordingly. While at it, log event counters in
forward order, as there's no reason to log them backward.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/imx/imx7-mipi-csis.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index a01a7364b4b9..b365790256e4 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -597,13 +597,15 @@ static void mipi_csis_clear_counters(struct csi_state *state)
static void mipi_csis_log_counters(struct csi_state *state, bool non_errors)
{
- int i = non_errors ? MIPI_CSIS_NUM_EVENTS : MIPI_CSIS_NUM_EVENTS - 4;
+ unsigned int num_events = non_errors ? MIPI_CSIS_NUM_EVENTS
+ : MIPI_CSIS_NUM_EVENTS - 6;
struct device *dev = &state->pdev->dev;
unsigned long flags;
+ unsigned int i;
spin_lock_irqsave(&state->slock, flags);
- for (i--; i >= 0; i--) {
+ for (i = 0; i < num_events; ++i) {
if (state->events[i].counter > 0 || state->debug)
dev_info(dev, "%s events: %d\n", state->events[i].name,
state->events[i].counter);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 148/700] crypto: qat - check return code of qat_hal_rd_rel_reg()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (146 preceding siblings ...)
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@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 149/700] crypto: qat - remove unused macro in FW loader Greg Kroah-Hartman
` (557 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jack Xu, Zhehui Xiang,
Giovanni Cabiddu, Herbert Xu, Sasha Levin
From: Jack Xu <jack.xu@intel.com>
[ Upstream commit 96b57229209490c8bca4335b01a426a96173dc56 ]
Check the return code of the function qat_hal_rd_rel_reg() and return it
to the caller.
This is to fix the following warning when compiling the driver with
clang scan-build:
drivers/crypto/qat/qat_common/qat_hal.c:1436:2: warning: 6th function call argument is an uninitialized value
Signed-off-by: Jack Xu <jack.xu@intel.com>
Co-developed-by: Zhehui Xiang <zhehui.xiang@intel.com>
Signed-off-by: Zhehui Xiang <zhehui.xiang@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/qat/qat_common/qat_hal.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/qat/qat_common/qat_hal.c b/drivers/crypto/qat/qat_common/qat_hal.c
index bd3028126cbe..069f51621f0e 100644
--- a/drivers/crypto/qat/qat_common/qat_hal.c
+++ b/drivers/crypto/qat/qat_common/qat_hal.c
@@ -1417,7 +1417,11 @@ static int qat_hal_put_rel_wr_xfer(struct icp_qat_fw_loader_handle *handle,
pr_err("QAT: bad xfrAddr=0x%x\n", xfr_addr);
return -EINVAL;
}
- qat_hal_rd_rel_reg(handle, ae, ctx, ICP_GPB_REL, gprnum, &gprval);
+ status = qat_hal_rd_rel_reg(handle, ae, ctx, ICP_GPB_REL, gprnum, &gprval);
+ if (status) {
+ pr_err("QAT: failed to read register");
+ return status;
+ }
gpr_addr = qat_hal_get_reg_addr(ICP_GPB_REL, gprnum);
data16low = 0xffff & data;
data16hi = 0xffff & (data >> 0x10);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 149/700] crypto: qat - remove unused macro in FW loader
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (147 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 148/700] crypto: qat - check return code of qat_hal_rd_rel_reg() Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 150/700] crypto: qce: skcipher: Fix incorrect sg count for dma transfers Greg Kroah-Hartman
` (556 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jack Xu, Zhehui Xiang,
Giovanni Cabiddu, Herbert Xu, Sasha Levin
From: Jack Xu <jack.xu@intel.com>
[ Upstream commit 9afe77cf25d9670e61b489fd52cc6f75fd7f6803 ]
Remove the unused macro ICP_DH895XCC_PESRAM_BAR_SIZE in the firmware
loader.
This is to fix the following warning when compiling the driver using the
clang compiler with CC=clang W=2:
drivers/crypto/qat/qat_common/qat_uclo.c:345:9: warning: macro is not used [-Wunused-macros]
Signed-off-by: Jack Xu <jack.xu@intel.com>
Co-developed-by: Zhehui Xiang <zhehui.xiang@intel.com>
Signed-off-by: Zhehui Xiang <zhehui.xiang@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/qat/qat_common/qat_uclo.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/crypto/qat/qat_common/qat_uclo.c b/drivers/crypto/qat/qat_common/qat_uclo.c
index 1fb5fc852f6b..6d95160e451e 100644
--- a/drivers/crypto/qat/qat_common/qat_uclo.c
+++ b/drivers/crypto/qat/qat_common/qat_uclo.c
@@ -342,7 +342,6 @@ static int qat_uclo_init_umem_seg(struct icp_qat_fw_loader_handle *handle,
return 0;
}
-#define ICP_DH895XCC_PESRAM_BAR_SIZE 0x80000
static int qat_uclo_init_ae_memory(struct icp_qat_fw_loader_handle *handle,
struct icp_qat_uof_initmem *init_mem)
{
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 150/700] crypto: qce: skcipher: Fix incorrect sg count for dma transfers
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (148 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 149/700] crypto: qat - remove unused macro in FW loader Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 151/700] arm64: perf: Convert snprintf to sysfs_emit Greg Kroah-Hartman
` (555 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thara Gopinath, Herbert Xu, Sasha Levin
From: Thara Gopinath <thara.gopinath@linaro.org>
[ Upstream commit 1339a7c3ba05137a2d2fe75f602311bbfc6fab33 ]
Use the sg count returned by dma_map_sg to call into
dmaengine_prep_slave_sg rather than using the original sg count. dma_map_sg
can merge consecutive sglist entries, thus making the original sg count
wrong. This is a fix for memory coruption issues observed while testing
encryption/decryption of large messages using libkcapi framework.
Patch has been tested further by running full suite of tcrypt.ko tests
including fuzz tests.
Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/qce/skcipher.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c
index a2d3da0ad95f..5a6559131eac 100644
--- a/drivers/crypto/qce/skcipher.c
+++ b/drivers/crypto/qce/skcipher.c
@@ -71,7 +71,7 @@ qce_skcipher_async_req_handle(struct crypto_async_request *async_req)
struct scatterlist *sg;
bool diff_dst;
gfp_t gfp;
- int ret;
+ int dst_nents, src_nents, ret;
rctx->iv = req->iv;
rctx->ivsize = crypto_skcipher_ivsize(skcipher);
@@ -122,21 +122,22 @@ qce_skcipher_async_req_handle(struct crypto_async_request *async_req)
sg_mark_end(sg);
rctx->dst_sg = rctx->dst_tbl.sgl;
- ret = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
- if (ret < 0)
+ dst_nents = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
+ if (dst_nents < 0)
goto error_free;
if (diff_dst) {
- ret = dma_map_sg(qce->dev, req->src, rctx->src_nents, dir_src);
- if (ret < 0)
+ src_nents = dma_map_sg(qce->dev, req->src, rctx->src_nents, dir_src);
+ if (src_nents < 0)
goto error_unmap_dst;
rctx->src_sg = req->src;
} else {
rctx->src_sg = rctx->dst_sg;
+ src_nents = dst_nents - 1;
}
- ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, rctx->src_nents,
- rctx->dst_sg, rctx->dst_nents,
+ ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, src_nents,
+ rctx->dst_sg, dst_nents,
qce_skcipher_done, async_req);
if (ret)
goto error_unmap_src;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 151/700] arm64: perf: Convert snprintf to sysfs_emit
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (149 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 150/700] crypto: qce: skcipher: Fix incorrect sg count for dma transfers Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 152/700] sched/fair: Fix ascii art by relpacing tabs Greg Kroah-Hartman
` (554 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tian Tao, Will Deacon, Sasha Levin
From: Tian Tao <tiantao6@hisilicon.com>
[ Upstream commit a5740e955540181f4ab8f076cc9795c6bbe4d730 ]
Use sysfs_emit instead of snprintf to avoid buf overrun,because in
sysfs_emit it strictly checks whether buf is null or buf whether
pagesize aligned, otherwise it returns an error.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Link: https://lore.kernel.org/r/1621497585-30887-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/kernel/perf_event.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 4658fcf88c2b..3baca49fcf6b 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -312,7 +312,7 @@ static ssize_t slots_show(struct device *dev, struct device_attribute *attr,
struct arm_pmu *cpu_pmu = container_of(pmu, struct arm_pmu, pmu);
u32 slots = cpu_pmu->reg_pmmir & ARMV8_PMU_SLOTS_MASK;
- return snprintf(page, PAGE_SIZE, "0x%08x\n", slots);
+ return sysfs_emit(page, "0x%08x\n", slots);
}
static DEVICE_ATTR_RO(slots);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 152/700] sched/fair: Fix ascii art by relpacing tabs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (150 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 151/700] arm64: perf: Convert snprintf to sysfs_emit Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 153/700] ima: Dont remove security.ima if file must not be appraised Greg Kroah-Hartman
` (553 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Odin Ugedal, Peter Zijlstra (Intel),
Vincent Guittot, Sasha Levin
From: Odin Ugedal <odin@uged.al>
[ Upstream commit 08f7c2f4d0e9f4283f5796b8168044c034a1bfcb ]
When using something other than 8 spaces per tab, this ascii art
makes not sense, and the reader might end up wondering what this
advanced equation "is".
Signed-off-by: Odin Ugedal <odin@uged.al>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210518125202.78658-4-odin@uged.al
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/fair.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 47fcc3fe9dc5..272c583fc167 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3134,7 +3134,7 @@ void reweight_task(struct task_struct *p, int prio)
*
* tg->weight * grq->load.weight
* ge->load.weight = ----------------------------- (1)
- * \Sum grq->load.weight
+ * \Sum grq->load.weight
*
* Now, because computing that sum is prohibitively expensive to compute (been
* there, done that) we approximate it with this average stuff. The average
@@ -3148,7 +3148,7 @@ void reweight_task(struct task_struct *p, int prio)
*
* tg->weight * grq->avg.load_avg
* ge->load.weight = ------------------------------ (3)
- * tg->load_avg
+ * tg->load_avg
*
* Where: tg->load_avg ~= \Sum grq->avg.load_avg
*
@@ -3164,7 +3164,7 @@ void reweight_task(struct task_struct *p, int prio)
*
* tg->weight * grq->load.weight
* ge->load.weight = ----------------------------- = tg->weight (4)
- * grp->load.weight
+ * grp->load.weight
*
* That is, the sum collapses because all other CPUs are idle; the UP scenario.
*
@@ -3183,7 +3183,7 @@ void reweight_task(struct task_struct *p, int prio)
*
* tg->weight * grq->load.weight
* ge->load.weight = ----------------------------- (6)
- * tg_load_avg'
+ * tg_load_avg'
*
* Where:
*
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 153/700] ima: Dont remove security.ima if file must not be appraised
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (151 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 152/700] sched/fair: Fix ascii art by relpacing tabs Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 154/700] media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off Greg Kroah-Hartman
` (552 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Roberto Sassu, Mimi Zohar, Sasha Levin
From: Roberto Sassu <roberto.sassu@huawei.com>
[ Upstream commit ed1b472fc15aeaa20ddeeb93fd25190014e50d17 ]
Files might come from a remote source and might have xattrs, including
security.ima. It should not be IMA task to decide whether security.ima
should be kept or not. This patch removes the removexattr() system
call in ima_inode_post_setattr().
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
security/integrity/ima/ima_appraise.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 565e33ff19d0..d7cc6f897746 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -522,8 +522,6 @@ void ima_inode_post_setattr(struct user_namespace *mnt_userns,
return;
action = ima_must_appraise(mnt_userns, inode, MAY_ACCESS, POST_SETATTR);
- if (!action)
- __vfs_removexattr(&init_user_ns, dentry, XATTR_NAME_IMA);
iint = integrity_iint_find(inode);
if (iint) {
set_bit(IMA_CHANGE_ATTR, &iint->atomic_flags);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 154/700] media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (152 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 153/700] ima: Dont remove security.ima if file must not be appraised Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 155/700] media: bt878: do not schedule tasklet when it is not setup Greg Kroah-Hartman
` (551 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dillon Min, Lad Prabhakar,
Sakari Ailus, Mauro Carvalho Chehab, Sasha Levin
From: Dillon Min <dillon.minfei@gmail.com>
[ Upstream commit 24786ccd9c80fdb05494aa4d90fcb8f34295c193 ]
On some platform(imx6q), xvclk might not switch on in advance,
also for power save purpose, xvclk should not be always on.
so, add clk_prepare_enable(), clk_disable_unprepare() in driver
side to set xvclk on/off at proper stage.
Add following changes:
- add 'struct clk *clk;' in 'struct ov2659 {}'
- enable xvclk in ov2659_power_on()
- disable xvclk in ov2659_power_off()
Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/ov2659.c | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c
index 42f64175a6df..fb78a1cedc03 100644
--- a/drivers/media/i2c/ov2659.c
+++ b/drivers/media/i2c/ov2659.c
@@ -204,6 +204,7 @@ struct ov2659 {
struct i2c_client *client;
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *link_frequency;
+ struct clk *clk;
const struct ov2659_framesize *frame_size;
struct sensor_register *format_ctrl_regs;
struct ov2659_pll_ctrl pll;
@@ -1270,6 +1271,8 @@ static int ov2659_power_off(struct device *dev)
gpiod_set_value(ov2659->pwdn_gpio, 1);
+ clk_disable_unprepare(ov2659->clk);
+
return 0;
}
@@ -1278,9 +1281,17 @@ static int ov2659_power_on(struct device *dev)
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov2659 *ov2659 = to_ov2659(sd);
+ int ret;
dev_dbg(&client->dev, "%s:\n", __func__);
+ ret = clk_prepare_enable(ov2659->clk);
+ if (ret) {
+ dev_err(&client->dev, "%s: failed to enable clock\n",
+ __func__);
+ return ret;
+ }
+
gpiod_set_value(ov2659->pwdn_gpio, 0);
if (ov2659->resetb_gpio) {
@@ -1425,7 +1436,6 @@ static int ov2659_probe(struct i2c_client *client)
const struct ov2659_platform_data *pdata = ov2659_get_pdata(client);
struct v4l2_subdev *sd;
struct ov2659 *ov2659;
- struct clk *clk;
int ret;
if (!pdata) {
@@ -1440,11 +1450,11 @@ static int ov2659_probe(struct i2c_client *client)
ov2659->pdata = pdata;
ov2659->client = client;
- clk = devm_clk_get(&client->dev, "xvclk");
- if (IS_ERR(clk))
- return PTR_ERR(clk);
+ ov2659->clk = devm_clk_get(&client->dev, "xvclk");
+ if (IS_ERR(ov2659->clk))
+ return PTR_ERR(ov2659->clk);
- ov2659->xvclk_frequency = clk_get_rate(clk);
+ ov2659->xvclk_frequency = clk_get_rate(ov2659->clk);
if (ov2659->xvclk_frequency < 6000000 ||
ov2659->xvclk_frequency > 27000000)
return -EINVAL;
@@ -1506,7 +1516,9 @@ static int ov2659_probe(struct i2c_client *client)
ov2659->frame_size = &ov2659_framesizes[2];
ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs;
- ov2659_power_on(&client->dev);
+ ret = ov2659_power_on(&client->dev);
+ if (ret < 0)
+ goto error;
ret = ov2659_detect(sd);
if (ret < 0)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 155/700] media: bt878: do not schedule tasklet when it is not setup
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (153 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 154/700] media: i2c: ov2659: Use clk_{prepare_enable,disable_unprepare}() to set xvclk on/off Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:03 ` [PATCH 5.12 156/700] media: em28xx: Fix possible memory leak of em28xx struct Greg Kroah-Hartman
` (550 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tong Zhang, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Tong Zhang <ztong0001@gmail.com>
[ Upstream commit a3a54bf4bddaecda8b5767209cfc703f0be2841d ]
There is a problem with the tasklet in bt878. bt->tasklet is set by
dvb-bt8xx.ko, and bt878.ko can be loaded independently.
In this case if interrupt comes it may cause null-ptr-dereference.
To solve this issue, we check if the tasklet is actually set before
calling tasklet_schedule.
[ 1.750438] bt878(0): irq FDSR FBUS risc_pc=
[ 1.750728] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 1.752969] RIP: 0010:0x0
[ 1.757526] Call Trace:
[ 1.757659] <IRQ>
[ 1.757770] tasklet_action_common.isra.0+0x107/0x110
[ 1.758041] tasklet_action+0x22/0x30
[ 1.758237] __do_softirq+0xe0/0x29b
[ 1.758430] irq_exit_rcu+0xa4/0xb0
[ 1.758618] common_interrupt+0x8d/0xa0
[ 1.758824] </IRQ>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/bt8xx/bt878.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c
index 78dd35c9b65d..7ca309121fb5 100644
--- a/drivers/media/pci/bt8xx/bt878.c
+++ b/drivers/media/pci/bt8xx/bt878.c
@@ -300,7 +300,8 @@ static irqreturn_t bt878_irq(int irq, void *dev_id)
}
if (astat & BT878_ARISCI) {
bt->finished_block = (stat & BT878_ARISCS) >> 28;
- tasklet_schedule(&bt->tasklet);
+ if (bt->tasklet.callback)
+ tasklet_schedule(&bt->tasklet);
break;
}
count++;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 156/700] media: em28xx: Fix possible memory leak of em28xx struct
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (154 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 155/700] media: bt878: do not schedule tasklet when it is not setup Greg Kroah-Hartman
@ 2021-07-12 6:03 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 157/700] media: hantro: Fix .buf_prepare Greg Kroah-Hartman
` (549 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:03 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Igor Matheus Andrade Torrente,
Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
[ Upstream commit ac5688637144644f06ed1f3c6d4dd8bb7db96020 ]
The em28xx struct kref isn't being decreased after an error in the
em28xx_ir_init, leading to a possible memory leak.
A kref_put and em28xx_shutdown_buttons is added to the error handler code.
Signed-off-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/em28xx/em28xx-input.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
index 5aa15a7a49de..59529cbf9cd0 100644
--- a/drivers/media/usb/em28xx/em28xx-input.c
+++ b/drivers/media/usb/em28xx/em28xx-input.c
@@ -720,7 +720,8 @@ static int em28xx_ir_init(struct em28xx *dev)
dev->board.has_ir_i2c = 0;
dev_warn(&dev->intf->dev,
"No i2c IR remote control device found.\n");
- return -ENODEV;
+ err = -ENODEV;
+ goto ref_put;
}
}
@@ -735,7 +736,7 @@ static int em28xx_ir_init(struct em28xx *dev)
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
if (!ir)
- return -ENOMEM;
+ goto ref_put;
rc = rc_allocate_device(RC_DRIVER_SCANCODE);
if (!rc)
goto error;
@@ -839,6 +840,9 @@ error:
dev->ir = NULL;
rc_free_device(rc);
kfree(ir);
+ref_put:
+ em28xx_shutdown_buttons(dev);
+ kref_put(&dev->ref, em28xx_free_device);
return err;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 157/700] media: hantro: Fix .buf_prepare
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (155 preceding siblings ...)
2021-07-12 6:03 ` [PATCH 5.12 156/700] media: em28xx: Fix possible memory leak of em28xx struct Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 158/700] media: cedrus: " Greg Kroah-Hartman
` (548 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andrzej Pietrasiewicz, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[ Upstream commit 082aaecff35fbe1937531057911b1dd1fc6b496e ]
The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.
If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in hantro_g1_h264_dec.c.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/hantro/hantro_v4l2.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/hantro/hantro_v4l2.c b/drivers/staging/media/hantro/hantro_v4l2.c
index 1bc118e375a1..7ccc6405036a 100644
--- a/drivers/staging/media/hantro/hantro_v4l2.c
+++ b/drivers/staging/media/hantro/hantro_v4l2.c
@@ -639,7 +639,14 @@ static int hantro_buf_prepare(struct vb2_buffer *vb)
ret = hantro_buf_plane_check(vb, pix_fmt);
if (ret)
return ret;
- vb2_set_plane_payload(vb, 0, pix_fmt->plane_fmt[0].sizeimage);
+ /*
+ * Buffer's bytesused must be written by driver for CAPTURE buffers.
+ * (for OUTPUT buffers, if userspace passes 0 bytesused, v4l2-core sets
+ * it to buffer length).
+ */
+ if (V4L2_TYPE_IS_CAPTURE(vq->type))
+ vb2_set_plane_payload(vb, 0, pix_fmt->plane_fmt[0].sizeimage);
+
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 158/700] media: cedrus: Fix .buf_prepare
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:04 ` [PATCH 5.12 157/700] media: hantro: Fix .buf_prepare Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 159/700] media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andrzej Pietrasiewicz, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[ Upstream commit d84b9202d712309840f8b5abee0ed272506563bd ]
The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.
If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in cedrus_h264.c or cedrus_vp8.c.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/sunxi/cedrus/cedrus_video.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_video.c b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
index b62eb8e84057..bf731caf2ed5 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_video.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_video.c
@@ -457,7 +457,13 @@ static int cedrus_buf_prepare(struct vb2_buffer *vb)
if (vb2_plane_size(vb, 0) < pix_fmt->sizeimage)
return -EINVAL;
- vb2_set_plane_payload(vb, 0, pix_fmt->sizeimage);
+ /*
+ * Buffer's bytesused must be written by driver for CAPTURE buffers.
+ * (for OUTPUT buffers, if userspace passes 0 bytesused, v4l2-core sets
+ * it to buffer length).
+ */
+ if (V4L2_TYPE_IS_CAPTURE(vq->type))
+ vb2_set_plane_payload(vb, 0, pix_fmt->sizeimage);
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 159/700] media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:04 ` [PATCH 5.12 158/700] media: cedrus: " Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 160/700] media: bt8xx: Fix a missing check bug in bt878_probe Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lv Yunlong, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
[ Upstream commit 7dd0c9e547b6924e18712b6b51aa3cba1896ee2c ]
A use after free bug caused by the dangling pointer
filp->privitate_data in v4l2_fh_release.
See https://lore.kernel.org/patchwork/patch/1419058/.
My patch sets the dangling pointer to NULL to provide
robust.
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/v4l2-core/v4l2-fh.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/v4l2-core/v4l2-fh.c b/drivers/media/v4l2-core/v4l2-fh.c
index 684574f58e82..90eec79ee995 100644
--- a/drivers/media/v4l2-core/v4l2-fh.c
+++ b/drivers/media/v4l2-core/v4l2-fh.c
@@ -96,6 +96,7 @@ int v4l2_fh_release(struct file *filp)
v4l2_fh_del(fh);
v4l2_fh_exit(fh);
kfree(fh);
+ filp->private_data = NULL;
}
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 160/700] media: bt8xx: Fix a missing check bug in bt878_probe
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@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 161/700] media: st-hva: Fix potential NULL pointer dereferences Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheyu Ma, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit 1a4520090681853e6b850cbe54b27247a013e0e5 ]
In 'bt878_irq', the driver calls 'tasklet_schedule', but this tasklet is
set in 'dvb_bt8xx_load_card' of another driver 'dvb-bt8xx'.
However, this two drivers are separate. The user may not load the
'dvb-bt8xx' driver when loading the 'bt8xx' driver, that is, the tasklet
has not been initialized when 'tasklet_schedule' is called, so it is
necessary to check whether the tasklet is initialized in 'bt878_probe'.
Fix this by adding a check at the end of bt878_probe.
The KASAN's report reveals it:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 800000006aab2067 P4D 800000006aab2067 PUD 6b2ea067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN PTI
CPU: 2 PID: 8724 Comm: syz-executor.0 Not tainted 4.19.177-
gdba4159c14ef-dirty #40
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-
gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010: (null)
Code: Bad RIP value.
RSP: 0018:ffff88806c287ea0 EFLAGS: 00010246
RAX: fffffbfff1b01774 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffffffff1b01775 RDI: 0000000000000000
RBP: ffff88806c287f00 R08: fffffbfff1b01774 R09: fffffbfff1b01774
R10: 0000000000000001 R11: fffffbfff1b01773 R12: 0000000000000000
R13: ffff88806c29f530 R14: ffffffff8d80bb88 R15: ffffffff8d80bb90
FS: 00007f6b550e6700(0000) GS:ffff88806c280000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000005ec98000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
tasklet_action_common.isra.17+0x141/0x420 kernel/softirq.c:522
tasklet_action+0x50/0x70 kernel/softirq.c:540
__do_softirq+0x224/0x92c kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x15a/0x180 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:535 [inline]
do_IRQ+0x123/0x1e0 arch/x86/kernel/irq.c:260
common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670
</IRQ>
RIP: 0010:__do_sys_interrupt kernel/sys.c:2593 [inline]
RIP: 0010:__se_sys_interrupt kernel/sys.c:2584 [inline]
RIP: 0010:__x64_sys_interrupt+0x5b/0x80 kernel/sys.c:2584
Code: ba 00 04 00 00 48 c7 c7 c0 99 31 8c e8 ae 76 5e 01 48 85 c0 75 21 e8
14 ae 24 00 48 c7 c3 c0 99 31 8c b8 0c 00 00 00 0f 01 c1 <31> db e8 fe ad
24 00 48 89 d8 5b 5d c3 48 c7 c3 ea ff ff ff eb ec
RSP: 0018:ffff888054167f10 EFLAGS: 00000212 ORIG_RAX: ffffffffffffffde
RAX: 000000000000000c RBX: ffffffff8c3199c0 RCX: ffffc90001ca6000
RDX: 000000000000001a RSI: ffffffff813478fc RDI: ffffffff8c319dc0
RBP: ffff888054167f18 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000080 R11: fffffbfff18633b7 R12: ffff888054167f58
R13: ffff88805f638000 R14: 0000000000000000 R15: 0000000000000000
do_syscall_64+0xb0/0x4e0 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4692a9
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6b550e5c48 EFLAGS: 00000246 ORIG_RAX: 000000000000014f
RAX: ffffffffffffffda RBX: 000000000077bf60 RCX: 00000000004692a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00000000004cf7eb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000077bf60
R13: 0000000000000000 R14: 000000000077bf60 R15: 00007fff55a1dca0
Modules linked in:
Dumping ftrace buffer:
(ftrace buffer empty)
CR2: 0000000000000000
---[ end trace 68e5849c3f77cbb6 ]---
RIP: 0010: (null)
Code: Bad RIP value.
RSP: 0018:ffff88806c287ea0 EFLAGS: 00010246
RAX: fffffbfff1b01774 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffffffff1b01775 RDI: 0000000000000000
RBP: ffff88806c287f00 R08: fffffbfff1b01774 R09: fffffbfff1b01774
R10: 0000000000000001 R11: fffffbfff1b01773 R12: 0000000000000000
R13: ffff88806c29f530 R14: ffffffff8d80bb88 R15: ffffffff8d80bb90
FS: 00007f6b550e6700(0000) GS:ffff88806c280000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000005ec98000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/bt8xx/bt878.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c
index 7ca309121fb5..90972d6952f1 100644
--- a/drivers/media/pci/bt8xx/bt878.c
+++ b/drivers/media/pci/bt8xx/bt878.c
@@ -478,6 +478,9 @@ static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
btwrite(0, BT878_AINT_MASK);
bt878_num++;
+ if (!bt->tasklet.func)
+ tasklet_disable(&bt->tasklet);
+
return 0;
fail2:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 161/700] media: st-hva: Fix potential NULL pointer dereferences
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` (159 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 160/700] media: bt8xx: Fix a missing check bug in bt878_probe Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 162/700] crypto: hisilicon/sec - fixup 3des minimum key size declaration Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Evgeny Novikov, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Evgeny Novikov <novikov@ispras.ru>
[ Upstream commit b7fdd208687ba59ebfb09b2199596471c63b69e3 ]
When ctx_id >= HVA_MAX_INSTANCES in hva_hw_its_irq_thread() it tries to
access fields of ctx that is NULL at that point. The patch gets rid of
these accesses.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/sti/hva/hva-hw.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/platform/sti/hva/hva-hw.c b/drivers/media/platform/sti/hva/hva-hw.c
index f59811e27f51..6eeee5017fac 100644
--- a/drivers/media/platform/sti/hva/hva-hw.c
+++ b/drivers/media/platform/sti/hva/hva-hw.c
@@ -130,8 +130,7 @@ static irqreturn_t hva_hw_its_irq_thread(int irq, void *arg)
ctx_id = (hva->sts_reg & 0xFF00) >> 8;
if (ctx_id >= HVA_MAX_INSTANCES) {
dev_err(dev, "%s %s: bad context identifier: %d\n",
- ctx->name, __func__, ctx_id);
- ctx->hw_err = true;
+ HVA_PREFIX, __func__, ctx_id);
goto out;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 162/700] crypto: hisilicon/sec - fixup 3des minimum key size declaration
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 163/700] Makefile: fix GDB warning with CONFIG_RELR Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Kai Ye, Herbert Xu, Sasha Levin
From: Kai Ye <yekai13@huawei.com>
[ Upstream commit 6161f40c630bd7ced5f236cd5fbabec06e47afae ]
Fixup the 3des algorithm minimum key size declaration.
Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/hisilicon/sec2/sec_crypto.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.c b/drivers/crypto/hisilicon/sec2/sec_crypto.c
index 8adcbb327126..c86b01abd0a6 100644
--- a/drivers/crypto/hisilicon/sec2/sec_crypto.c
+++ b/drivers/crypto/hisilicon/sec2/sec_crypto.c
@@ -1513,11 +1513,11 @@ static struct skcipher_alg sec_skciphers[] = {
AES_BLOCK_SIZE, AES_BLOCK_SIZE)
SEC_SKCIPHER_ALG("ecb(des3_ede)", sec_setkey_3des_ecb,
- SEC_DES3_2KEY_SIZE, SEC_DES3_3KEY_SIZE,
+ SEC_DES3_3KEY_SIZE, SEC_DES3_3KEY_SIZE,
DES3_EDE_BLOCK_SIZE, 0)
SEC_SKCIPHER_ALG("cbc(des3_ede)", sec_setkey_3des_cbc,
- SEC_DES3_2KEY_SIZE, SEC_DES3_3KEY_SIZE,
+ SEC_DES3_3KEY_SIZE, SEC_DES3_3KEY_SIZE,
DES3_EDE_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE)
SEC_SKCIPHER_ALG("xts(sm4)", sec_setkey_sm4_xts,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 163/700] Makefile: fix GDB warning with CONFIG_RELR
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:04 ` [PATCH 5.12 162/700] crypto: hisilicon/sec - fixup 3des minimum key size declaration Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 164/700] media: dvd_usb: memory leak in cinergyt2_fe_attach Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Collingbourne,
Nathan Chancellor, Nick Desaulniers, Will Deacon, Sasha Levin
From: Nick Desaulniers <ndesaulniers@google.com>
[ Upstream commit 27f2a4db76e8d8a8b601fc1c6a7a17f88bd907ab ]
GDB produces the following warning when debugging kernels built with
CONFIG_RELR:
BFD: /android0/linux-next/vmlinux: unknown type [0x13] section `.relr.dyn'
when loading a kernel built with CONFIG_RELR into GDB. It can also
prevent debugging symbols using such relocations.
Peter sugguests:
[That flag] means that lld will use dynamic tags and section type
numbers in the OS-specific range rather than the generic range. The
kernel itself doesn't care about these numbers; it determines the
location of the RELR section using symbols defined by a linker script.
Link: https://github.com/ClangBuiltLinux/linux/issues/1057
Suggested-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20210522012626.2811297-1-ndesaulniers@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Makefile | 2 +-
scripts/tools-support-relr.sh | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index bf6accb2328c..6682790891df 100644
--- a/Makefile
+++ b/Makefile
@@ -1006,7 +1006,7 @@ LDFLAGS_vmlinux += $(call ld-option, -X,)
endif
ifeq ($(CONFIG_RELR),y)
-LDFLAGS_vmlinux += --pack-dyn-relocs=relr
+LDFLAGS_vmlinux += --pack-dyn-relocs=relr --use-android-relr-tags
endif
# We never want expected sections to be placed heuristically by the
diff --git a/scripts/tools-support-relr.sh b/scripts/tools-support-relr.sh
index 45e8aa360b45..cb55878bd5b8 100755
--- a/scripts/tools-support-relr.sh
+++ b/scripts/tools-support-relr.sh
@@ -7,7 +7,8 @@ trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
void *p = &p;
END
-$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
+$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr \
+ --use-android-relr-tags -o $tmp_file
# Despite printing an error message, GNU nm still exits with exit code 0 if it
# sees a relr section. So we need to check that nothing is printed to stderr.
--
2.30.2
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@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 165/700] memstick: rtsx_usb_ms: fix UAF Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+e1de8986786b3722050e,
Dongliang Mu, Sean Young, Mauro Carvalho Chehab, Sasha Levin
From: Dongliang Mu <mudongliangabcd@gmail.com>
[ Upstream commit 9ad1efee086e0e913914fa2b2173efb830bad68c ]
When the driver fails to talk with the hardware with dvb_usb_generic_rw,
it will return an error to dvb_usb_adapter_frontend_init. However, the
driver forgets to free the resource (e.g., struct cinergyt2_fe_state),
which leads to a memory leak.
Fix this by freeing struct cinergyt2_fe_state when dvb_usb_generic_rw
fails in cinergyt2_frontend_attach.
backtrace:
[<0000000056e17b1a>] kmalloc include/linux/slab.h:552 [inline]
[<0000000056e17b1a>] kzalloc include/linux/slab.h:682 [inline]
[<0000000056e17b1a>] cinergyt2_fe_attach+0x21/0x80 drivers/media/usb/dvb-usb/cinergyT2-fe.c:271
[<00000000ae0b1711>] cinergyt2_frontend_attach+0x21/0x70 drivers/media/usb/dvb-usb/cinergyT2-core.c:74
[<00000000d0254861>] dvb_usb_adapter_frontend_init+0x11b/0x1b0 drivers/media/usb/dvb-usb/dvb-usb-dvb.c:290
[<0000000002e08ac6>] dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:84 [inline]
[<0000000002e08ac6>] dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:173 [inline]
[<0000000002e08ac6>] dvb_usb_device_init.cold+0x4d0/0x6ae drivers/media/usb/dvb-usb/dvb-usb-init.c:287
Reported-by: syzbot+e1de8986786b3722050e@syzkaller.appspotmail.com
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/dvb-usb/cinergyT2-core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/usb/dvb-usb/cinergyT2-core.c b/drivers/media/usb/dvb-usb/cinergyT2-core.c
index 969a7ec71dff..4116ba5c45fc 100644
--- a/drivers/media/usb/dvb-usb/cinergyT2-core.c
+++ b/drivers/media/usb/dvb-usb/cinergyT2-core.c
@@ -78,6 +78,8 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 3, 0);
if (ret < 0) {
+ if (adap->fe_adap[0].fe)
+ adap->fe_adap[0].fe->ops.release(adap->fe_adap[0].fe);
deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep state info\n");
}
mutex_unlock(&d->data_mutex);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 165/700] memstick: rtsx_usb_ms: fix UAF
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (163 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 164/700] media: dvd_usb: memory leak in cinergyt2_fe_attach Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 166/700] mmc: sdhci-sprd: use sdhci_sprd_writew Greg Kroah-Hartman
` (540 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tong Zhang, Ulf Hansson, Sasha Levin
From: Tong Zhang <ztong0001@gmail.com>
[ Upstream commit 42933c8aa14be1caa9eda41f65cde8a3a95d3e39 ]
This patch fixes the following issues:
1. memstick_free_host() will free the host, so the use of ms_dev(host) after
it will be a problem. To fix this, move memstick_free_host() after when we
are done with ms_dev(host).
2. In rtsx_usb_ms_drv_remove(), pm need to be disabled before we remove
and free host otherwise memstick_check will be called and UAF will
happen.
[ 11.351173] BUG: KASAN: use-after-free in rtsx_usb_ms_drv_remove+0x94/0x140 [rtsx_usb_ms]
[ 11.357077] rtsx_usb_ms_drv_remove+0x94/0x140 [rtsx_usb_ms]
[ 11.357376] platform_remove+0x2a/0x50
[ 11.367531] Freed by task 298:
[ 11.368537] kfree+0xa4/0x2a0
[ 11.368711] device_release+0x51/0xe0
[ 11.368905] kobject_put+0xa2/0x120
[ 11.369090] rtsx_usb_ms_drv_remove+0x8c/0x140 [rtsx_usb_ms]
[ 11.369386] platform_remove+0x2a/0x50
[ 12.038408] BUG: KASAN: use-after-free in __mutex_lock.isra.0+0x3ec/0x7c0
[ 12.045432] mutex_lock+0xc9/0xd0
[ 12.046080] memstick_check+0x6a/0x578 [memstick]
[ 12.046509] process_one_work+0x46d/0x750
[ 12.052107] Freed by task 297:
[ 12.053115] kfree+0xa4/0x2a0
[ 12.053272] device_release+0x51/0xe0
[ 12.053463] kobject_put+0xa2/0x120
[ 12.053647] rtsx_usb_ms_drv_remove+0xc4/0x140 [rtsx_usb_ms]
[ 12.053939] platform_remove+0x2a/0x50
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Co-developed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20210511163944.1233295-1-ztong0001@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/memstick/host/rtsx_usb_ms.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/memstick/host/rtsx_usb_ms.c b/drivers/memstick/host/rtsx_usb_ms.c
index 102dbb8080da..29271ad4728a 100644
--- a/drivers/memstick/host/rtsx_usb_ms.c
+++ b/drivers/memstick/host/rtsx_usb_ms.c
@@ -799,9 +799,9 @@ static int rtsx_usb_ms_drv_probe(struct platform_device *pdev)
return 0;
err_out:
- memstick_free_host(msh);
pm_runtime_disable(ms_dev(host));
pm_runtime_put_noidle(ms_dev(host));
+ memstick_free_host(msh);
return err;
}
@@ -828,9 +828,6 @@ static int rtsx_usb_ms_drv_remove(struct platform_device *pdev)
}
mutex_unlock(&host->host_mutex);
- memstick_remove_host(msh);
- memstick_free_host(msh);
-
/* Balance possible unbalanced usage count
* e.g. unconditional module removal
*/
@@ -838,10 +835,11 @@ static int rtsx_usb_ms_drv_remove(struct platform_device *pdev)
pm_runtime_put(ms_dev(host));
pm_runtime_disable(ms_dev(host));
- platform_set_drvdata(pdev, NULL);
-
+ memstick_remove_host(msh);
dev_dbg(ms_dev(host),
": Realtek USB Memstick controller has been removed\n");
+ memstick_free_host(msh);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 166/700] mmc: sdhci-sprd: use sdhci_sprd_writew
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (164 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 165/700] memstick: rtsx_usb_ms: fix UAF Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 167/700] mmc: via-sdmmc: add a check against NULL pointer dereference Greg Kroah-Hartman
` (539 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot,
Krzysztof Kozlowski, Ulf Hansson, Sasha Levin
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
[ Upstream commit 961470820021e6f9d74db4837bd6831a1a30341b ]
The sdhci_sprd_writew() was defined by never used in sdhci_ops:
drivers/mmc/host/sdhci-sprd.c:134:20: warning: unused function 'sdhci_sprd_writew'
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210601095403.236007-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/host/sdhci-sprd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 5dc36efff47f..11e375579cfb 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -393,6 +393,7 @@ static void sdhci_sprd_request_done(struct sdhci_host *host,
static struct sdhci_ops sdhci_sprd_ops = {
.read_l = sdhci_sprd_readl,
.write_l = sdhci_sprd_writel,
+ .write_w = sdhci_sprd_writew,
.write_b = sdhci_sprd_writeb,
.set_clock = sdhci_sprd_set_clock,
.get_max_clock = sdhci_sprd_get_max_clock,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 167/700] mmc: via-sdmmc: add a check against NULL pointer dereference
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (165 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 166/700] mmc: sdhci-sprd: use sdhci_sprd_writew Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 168/700] mmc: sdhci-of-aspeed: Turn down a phase correction warning Greg Kroah-Hartman
` (538 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zheyu Ma, Ulf Hansson, Sasha Levin
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit 45c8ddd06c4b729c56a6083ab311bfbd9643f4a6 ]
Before referencing 'host->data', the driver needs to check whether it is
null pointer, otherwise it will cause a null pointer reference.
This log reveals it:
[ 29.355199] BUG: kernel NULL pointer dereference, address:
0000000000000014
[ 29.357323] #PF: supervisor write access in kernel mode
[ 29.357706] #PF: error_code(0x0002) - not-present page
[ 29.358088] PGD 0 P4D 0
[ 29.358280] Oops: 0002 [#1] PREEMPT SMP PTI
[ 29.358595] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.12.4-
g70e7f0549188-dirty #102
[ 29.359164] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[ 29.359978] RIP: 0010:via_sdc_isr+0x21f/0x410
[ 29.360314] Code: ff ff e8 84 aa d0 fd 66 45 89 7e 28 66 41 f7 c4 00
10 75 56 e8 72 aa d0 fd 66 41 f7 c4 00 c0 74 10 e8 65 aa d0 fd 48 8b 43
18 <c7> 40 14 ac ff ff ff e8 55 aa d0 fd 48 89 df e8 ad fb ff ff e9 77
[ 29.361661] RSP: 0018:ffffc90000118e98 EFLAGS: 00010046
[ 29.362042] RAX: 0000000000000000 RBX: ffff888107d77880
RCX: 0000000000000000
[ 29.362564] RDX: 0000000000000000 RSI: ffffffff835d20bb
RDI: 00000000ffffffff
[ 29.363085] RBP: ffffc90000118ed8 R08: 0000000000000001
R09: 0000000000000001
[ 29.363604] R10: 0000000000000000 R11: 0000000000000001
R12: 0000000000008600
[ 29.364128] R13: ffff888107d779c8 R14: ffffc90009c00200
R15: 0000000000008000
[ 29.364651] FS: 0000000000000000(0000) GS:ffff88817bc80000(0000)
knlGS:0000000000000000
[ 29.365235] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 29.365655] CR2: 0000000000000014 CR3: 0000000005a2e000
CR4: 00000000000006e0
[ 29.366170] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[ 29.366683] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[ 29.367197] Call Trace:
[ 29.367381] <IRQ>
[ 29.367537] __handle_irq_event_percpu+0x53/0x3e0
[ 29.367916] handle_irq_event_percpu+0x35/0x90
[ 29.368247] handle_irq_event+0x39/0x60
[ 29.368632] handle_fasteoi_irq+0xc2/0x1d0
[ 29.368950] __common_interrupt+0x7f/0x150
[ 29.369254] common_interrupt+0xb4/0xd0
[ 29.369547] </IRQ>
[ 29.369708] asm_common_interrupt+0x1e/0x40
[ 29.370016] RIP: 0010:native_safe_halt+0x17/0x20
[ 29.370360] Code: 07 0f 00 2d db 80 43 00 f4 5d c3 0f 1f 84 00 00 00
00 00 8b 05 c2 37 e5 01 55 48 89 e5 85 c0 7e 07 0f 00 2d bb 80 43 00 fb
f4 <5d> c3 cc cc cc cc cc cc cc 55 48 89 e5 e8 67 53 ff ff 8b 0d f9 91
[ 29.371696] RSP: 0018:ffffc9000008fe90 EFLAGS: 00000246
[ 29.372079] RAX: 0000000000000000 RBX: 0000000000000002
RCX: 0000000000000000
[ 29.372595] RDX: 0000000000000000 RSI: ffffffff854f67a4
RDI: ffffffff85403406
[ 29.373122] RBP: ffffc9000008fe90 R08: 0000000000000001
R09: 0000000000000001
[ 29.373646] R10: 0000000000000000 R11: 0000000000000001
R12: ffffffff86009188
[ 29.374160] R13: 0000000000000000 R14: 0000000000000000
R15: ffff888100258000
[ 29.374690] default_idle+0x9/0x10
[ 29.374944] arch_cpu_idle+0xa/0x10
[ 29.375198] default_idle_call+0x6e/0x250
[ 29.375491] do_idle+0x1f0/0x2d0
[ 29.375740] cpu_startup_entry+0x18/0x20
[ 29.376034] start_secondary+0x11f/0x160
[ 29.376328] secondary_startup_64_no_verify+0xb0/0xbb
[ 29.376705] Modules linked in:
[ 29.376939] Dumping ftrace buffer:
[ 29.377187] (ftrace buffer empty)
[ 29.377460] CR2: 0000000000000014
[ 29.377712] ---[ end trace 51a473dffb618c47 ]---
[ 29.378056] RIP: 0010:via_sdc_isr+0x21f/0x410
[ 29.378380] Code: ff ff e8 84 aa d0 fd 66 45 89 7e 28 66 41 f7 c4 00
10 75 56 e8 72 aa d0 fd 66 41 f7 c4 00 c0 74 10 e8 65 aa d0 fd 48 8b 43
18 <c7> 40 14 ac ff ff ff e8 55 aa d0 fd 48 89 df e8 ad fb ff ff e9 77
[ 29.379714] RSP: 0018:ffffc90000118e98 EFLAGS: 00010046
[ 29.380098] RAX: 0000000000000000 RBX: ffff888107d77880
RCX: 0000000000000000
[ 29.380614] RDX: 0000000000000000 RSI: ffffffff835d20bb
RDI: 00000000ffffffff
[ 29.381134] RBP: ffffc90000118ed8 R08: 0000000000000001
R09: 0000000000000001
[ 29.381653] R10: 0000000000000000 R11: 0000000000000001
R12: 0000000000008600
[ 29.382176] R13: ffff888107d779c8 R14: ffffc90009c00200
R15: 0000000000008000
[ 29.382697] FS: 0000000000000000(0000) GS:ffff88817bc80000(0000)
knlGS:0000000000000000
[ 29.383277] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 29.383697] CR2: 0000000000000014 CR3: 0000000005a2e000
CR4: 00000000000006e0
[ 29.384223] DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
[ 29.384736] DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
[ 29.385260] Kernel panic - not syncing: Fatal exception in interrupt
[ 29.385882] Dumping ftrace buffer:
[ 29.386135] (ftrace buffer empty)
[ 29.386401] Kernel Offset: disabled
[ 29.386656] Rebooting in 1 seconds..
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/1622727200-15808-1-git-send-email-zheyuma97@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/host/via-sdmmc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 4f4c0813f9fd..350e67056fa6 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -857,6 +857,9 @@ static void via_sdc_data_isr(struct via_crdr_mmc_host *host, u16 intmask)
{
BUG_ON(intmask == 0);
+ if (!host->data)
+ return;
+
if (intmask & VIA_CRDR_SDSTS_DT)
host->data->error = -ETIMEDOUT;
else if (intmask & (VIA_CRDR_SDSTS_RC | VIA_CRDR_SDSTS_WC))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 168/700] mmc: sdhci-of-aspeed: Turn down a phase correction warning
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (166 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 167/700] mmc: via-sdmmc: add a check against NULL pointer dereference Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 169/700] spi: meson-spicc: fix a wrong goto jump for avoiding memory leak Greg Kroah-Hartman
` (537 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joel Stanley, Andrew Jeffery,
Ulf Hansson, Sasha Levin
From: Andrew Jeffery <andrew@aj.id.au>
[ Upstream commit a7ab186f60785850b5af1be183867000485ad491 ]
The card timing and the bus frequency are not changed atomically with
respect to calls to the set_clock() callback in the driver. The result
is the driver sees a transient state where there's a mismatch between
the two and thus the inputs to the phase correction calculation
formula are garbage.
Switch from dev_warn() to dev_dbg() to avoid noise in the normal case,
though the change does make bad configurations less likely to be
noticed.
Reported-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210607013020.85885-1-andrew@aj.id.au
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/host/sdhci-of-aspeed.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c
index 7d8692e90996..b6ac2af199b8 100644
--- a/drivers/mmc/host/sdhci-of-aspeed.c
+++ b/drivers/mmc/host/sdhci-of-aspeed.c
@@ -150,7 +150,7 @@ static int aspeed_sdhci_phase_to_tap(struct device *dev, unsigned long rate_hz,
tap = div_u64(phase_period_ps, prop_delay_ps);
if (tap > ASPEED_SDHCI_NR_TAPS) {
- dev_warn(dev,
+ dev_dbg(dev,
"Requested out of range phase tap %d for %d degrees of phase compensation at %luHz, clamping to tap %d\n",
tap, phase_deg, rate_hz, ASPEED_SDHCI_NR_TAPS);
tap = ASPEED_SDHCI_NR_TAPS;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 169/700] spi: meson-spicc: fix a wrong goto jump for avoiding memory leak.
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (167 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 168/700] mmc: sdhci-of-aspeed: Turn down a phase correction warning Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 170/700] spi: meson-spicc: fix memory leak in meson_spicc_probe Greg Kroah-Hartman
` (536 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, zpershuai, Neil Armstrong,
Mark Brown, Sasha Levin
From: zpershuai <zpershuai@gmail.com>
[ Upstream commit 95730d5eb73170a6d225a9998c478be273598634 ]
In meson_spifc_probe function, when enable the device pclk clock is
error, it should use clk_disable_unprepare to release the core clock.
Signed-off-by: zpershuai <zpershuai@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/1623562172-22056-1-git-send-email-zpershuai@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-meson-spicc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c
index ecba6b4a5d85..51aef2c6e966 100644
--- a/drivers/spi/spi-meson-spicc.c
+++ b/drivers/spi/spi-meson-spicc.c
@@ -725,7 +725,7 @@ static int meson_spicc_probe(struct platform_device *pdev)
ret = clk_prepare_enable(spicc->pclk);
if (ret) {
dev_err(&pdev->dev, "pclk clock enable failed\n");
- goto out_master;
+ goto out_core_clk;
}
device_reset_optional(&pdev->dev);
@@ -764,9 +764,11 @@ static int meson_spicc_probe(struct platform_device *pdev)
return 0;
out_clk:
- clk_disable_unprepare(spicc->core);
clk_disable_unprepare(spicc->pclk);
+out_core_clk:
+ clk_disable_unprepare(spicc->core);
+
out_master:
spi_master_put(master);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 170/700] spi: meson-spicc: fix memory leak in meson_spicc_probe
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (168 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 169/700] spi: meson-spicc: fix a wrong goto jump for avoiding memory leak Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 171/700] regulator: mt6315: Fix checking return value of devm_regmap_init_spmi_ext Greg Kroah-Hartman
` (535 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, zpershuai, Neil Armstrong,
Mark Brown, Sasha Levin
From: zpershuai <zpershuai@gmail.com>
[ Upstream commit b2d501c13470409ee7613855b17e5e5ec4111e1c ]
when meson_spicc_clk_init returns failed, it should goto the
out_clk label.
Signed-off-by: zpershuai <zpershuai@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/1623562156-21995-1-git-send-email-zpershuai@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-meson-spicc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c
index 51aef2c6e966..b2c4621db34d 100644
--- a/drivers/spi/spi-meson-spicc.c
+++ b/drivers/spi/spi-meson-spicc.c
@@ -752,7 +752,7 @@ static int meson_spicc_probe(struct platform_device *pdev)
ret = meson_spicc_clk_init(spicc);
if (ret) {
dev_err(&pdev->dev, "clock registration failed\n");
- goto out_master;
+ goto out_clk;
}
ret = devm_spi_register_master(&pdev->dev, master);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 171/700] regulator: mt6315: Fix checking return value of devm_regmap_init_spmi_ext
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (169 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 170/700] spi: meson-spicc: fix memory leak in meson_spicc_probe Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 172/700] crypto: shash - avoid comparing pointers to exported functions under CFI Greg Kroah-Hartman
` (534 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Axel Lin, Mark Brown, Sasha Levin
From: Axel Lin <axel.lin@ingics.com>
[ Upstream commit 70d654ea3de937d7754c107bb8eeb20e30262c89 ]
devm_regmap_init_spmi_ext() returns ERR_PTR() on error.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210615132934.3453965-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/mt6315-regulator.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/regulator/mt6315-regulator.c b/drivers/regulator/mt6315-regulator.c
index 6b8be52c3772..7514702f78cf 100644
--- a/drivers/regulator/mt6315-regulator.c
+++ b/drivers/regulator/mt6315-regulator.c
@@ -223,8 +223,8 @@ static int mt6315_regulator_probe(struct spmi_device *pdev)
int i;
regmap = devm_regmap_init_spmi_ext(pdev, &mt6315_regmap_config);
- if (!regmap)
- return -ENODEV;
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
chip = devm_kzalloc(dev, sizeof(struct mt6315_chip), GFP_KERNEL);
if (!chip)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 172/700] crypto: shash - avoid comparing pointers to exported functions under CFI
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (170 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 171/700] regulator: mt6315: Fix checking return value of devm_regmap_init_spmi_ext Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 173/700] media: dvb_net: avoid speculation from net slot Greg Kroah-Hartman
` (533 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sami Tolvanen, Eric Biggers,
Ard Biesheuvel, Eric Biggers, Herbert Xu, Sasha Levin
From: Ard Biesheuvel <ardb@kernel.org>
[ Upstream commit 22ca9f4aaf431a9413dcc115dd590123307f274f ]
crypto_shash_alg_has_setkey() is implemented by testing whether the
.setkey() member of a struct shash_alg points to the default version,
called shash_no_setkey(). As crypto_shash_alg_has_setkey() is a static
inline, this requires shash_no_setkey() to be exported to modules.
Unfortunately, when building with CFI, function pointers are routed
via CFI stubs which are private to each module (or to the kernel proper)
and so this function pointer comparison may fail spuriously.
Let's fix this by turning crypto_shash_alg_has_setkey() into an out of
line function.
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
crypto/shash.c | 18 +++++++++++++++---
include/crypto/internal/hash.h | 8 +-------
2 files changed, 16 insertions(+), 10 deletions(-)
diff --git a/crypto/shash.c b/crypto/shash.c
index 2e3433ad9762..0a0a50cb694f 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -20,12 +20,24 @@
static const struct crypto_type crypto_shash_type;
-int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
- unsigned int keylen)
+static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen)
{
return -ENOSYS;
}
-EXPORT_SYMBOL_GPL(shash_no_setkey);
+
+/*
+ * Check whether an shash algorithm has a setkey function.
+ *
+ * For CFI compatibility, this must not be an inline function. This is because
+ * when CFI is enabled, modules won't get the same address for shash_no_setkey
+ * (if it were exported, which inlining would require) as the core kernel will.
+ */
+bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
+{
+ return alg->setkey != shash_no_setkey;
+}
+EXPORT_SYMBOL_GPL(crypto_shash_alg_has_setkey);
static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
unsigned int keylen)
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 0a288dddcf5b..25806141db59 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -75,13 +75,7 @@ void crypto_unregister_ahashes(struct ahash_alg *algs, int count);
int ahash_register_instance(struct crypto_template *tmpl,
struct ahash_instance *inst);
-int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
- unsigned int keylen);
-
-static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
-{
- return alg->setkey != shash_no_setkey;
-}
+bool crypto_shash_alg_has_setkey(struct shash_alg *alg);
static inline bool crypto_shash_alg_needs_key(struct shash_alg *alg)
{
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 173/700] media: dvb_net: avoid speculation from net slot
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (171 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 172/700] crypto: shash - avoid comparing pointers to exported functions under CFI Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 174/700] media: dvbdev: fix error logic at dvb_register_device() Greg Kroah-Hartman
` (532 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit abc0226df64dc137b48b911c1fe4319aec5891bb ]
The risk of especulation is actually almost-non-existing here,
as there are very few users of TCP/IP using the DVB stack,
as, this is mainly used with DVB-S/S2 cards, and only by people
that receives TCP/IP from satellite connections, which limits
a lot the number of users of such feature(*).
(*) In thesis, DVB-C cards could also benefit from it, but I'm
yet to see a hardware that supports it.
Yet, fixing it is trivial.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/dvb-core/dvb_net.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index 89620da983ba..dddebea644bb 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -45,6 +45,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
+#include <linux/nospec.h>
#include <linux/etherdevice.h>
#include <linux/dvb/net.h>
#include <linux/uio.h>
@@ -1462,14 +1463,20 @@ static int dvb_net_do_ioctl(struct file *file,
struct net_device *netdev;
struct dvb_net_priv *priv_data;
struct dvb_net_if *dvbnetif = parg;
+ int if_num = dvbnetif->if_num;
- if (dvbnetif->if_num >= DVB_NET_DEVICES_MAX ||
- !dvbnet->state[dvbnetif->if_num]) {
+ if (if_num >= DVB_NET_DEVICES_MAX) {
ret = -EINVAL;
goto ioctl_error;
}
+ if_num = array_index_nospec(if_num, DVB_NET_DEVICES_MAX);
- netdev = dvbnet->device[dvbnetif->if_num];
+ if (!dvbnet->state[if_num]) {
+ ret = -EINVAL;
+ goto ioctl_error;
+ }
+
+ netdev = dvbnet->device[if_num];
priv_data = netdev_priv(netdev);
dvbnetif->pid=priv_data->pid;
@@ -1522,14 +1529,20 @@ static int dvb_net_do_ioctl(struct file *file,
struct net_device *netdev;
struct dvb_net_priv *priv_data;
struct __dvb_net_if_old *dvbnetif = parg;
+ int if_num = dvbnetif->if_num;
+
+ if (if_num >= DVB_NET_DEVICES_MAX) {
+ ret = -EINVAL;
+ goto ioctl_error;
+ }
+ if_num = array_index_nospec(if_num, DVB_NET_DEVICES_MAX);
- if (dvbnetif->if_num >= DVB_NET_DEVICES_MAX ||
- !dvbnet->state[dvbnetif->if_num]) {
+ if (!dvbnet->state[if_num]) {
ret = -EINVAL;
goto ioctl_error;
}
- netdev = dvbnet->device[dvbnetif->if_num];
+ netdev = dvbnet->device[if_num];
priv_data = netdev_priv(netdev);
dvbnetif->pid=priv_data->pid;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 174/700] media: dvbdev: fix error logic at dvb_register_device()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (172 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 173/700] media: dvb_net: avoid speculation from net slot Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 175/700] media: siano: fix device register error path Greg Kroah-Hartman
` (531 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 1fec2ecc252301110e4149e6183fa70460d29674 ]
As reported by smatch:
drivers/media/dvb-core/dvbdev.c: drivers/media/dvb-core/dvbdev.c:510 dvb_register_device() warn: '&dvbdev->list_head' not removed from list
drivers/media/dvb-core/dvbdev.c: drivers/media/dvb-core/dvbdev.c:530 dvb_register_device() warn: '&dvbdev->list_head' not removed from list
drivers/media/dvb-core/dvbdev.c: drivers/media/dvb-core/dvbdev.c:545 dvb_register_device() warn: '&dvbdev->list_head' not removed from list
The error logic inside dvb_register_device() doesn't remove
devices from the dvb_adapter_list in case of errors.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/dvb-core/dvbdev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 3862ddc86ec4..795d9bfaba5c 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -506,6 +506,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
break;
if (minor == MAX_DVB_MINORS) {
+ list_del (&dvbdev->list_head);
kfree(dvbdevfops);
kfree(dvbdev);
up_write(&minor_rwsem);
@@ -526,6 +527,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
__func__);
dvb_media_device_free(dvbdev);
+ list_del (&dvbdev->list_head);
kfree(dvbdevfops);
kfree(dvbdev);
mutex_unlock(&dvbdev_register_lock);
@@ -541,6 +543,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
pr_err("%s: failed to create device dvb%d.%s%d (%ld)\n",
__func__, adap->num, dnames[type], id, PTR_ERR(clsdev));
dvb_media_device_free(dvbdev);
+ list_del (&dvbdev->list_head);
kfree(dvbdevfops);
kfree(dvbdev);
return PTR_ERR(clsdev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 175/700] media: siano: fix device register error path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (173 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 174/700] media: dvbdev: fix error logic at dvb_register_device() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 176/700] media: imx-csi: Skip first few frames from a BT.656 source Greg Kroah-Hartman
` (530 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 5368b1ee2939961a16e74972b69088433fc52195 ]
As reported by smatch:
drivers/media/common/siano/smsdvb-main.c:1231 smsdvb_hotplug() warn: '&client->entry' not removed from list
If an error occur at the end of the registration logic, it won't
drop the device from the list.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/common/siano/smsdvb-main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c
index ae17407e477a..7cc654bc52d3 100644
--- a/drivers/media/common/siano/smsdvb-main.c
+++ b/drivers/media/common/siano/smsdvb-main.c
@@ -1176,6 +1176,10 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev,
return 0;
media_graph_error:
+ mutex_lock(&g_smsdvb_clientslock);
+ list_del(&client->entry);
+ mutex_unlock(&g_smsdvb_clientslock);
+
smsdvb_debugfs_release(client);
client_error:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 176/700] media: imx-csi: Skip first few frames from a BT.656 source
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (174 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 175/700] media: siano: fix device register error path Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 177/700] hwmon: (max31790) Report correct current pwm duty cycles Greg Kroah-Hartman
` (529 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Steve Longerbeam, Fabio Estevam,
Tim Harvey, Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Steve Longerbeam <slongerbeam@gmail.com>
[ Upstream commit e198be37e52551bb863d07d2edc535d0932a3c4f ]
Some BT.656 sensors (e.g. ADV718x) transmit frames with unstable BT.656
sync codes after initial power on. This confuses the imx CSI,resulting
in vertical and/or horizontal sync issues. Skip the first 20 frames
to avoid the unstable sync codes.
[fabio: fixed checkpatch warning and increased the frame skipping to 20]
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/imx/imx-media-csi.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index ef5add079774..7f4b967646d9 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -753,9 +753,10 @@ static int csi_setup(struct csi_priv *priv)
static int csi_start(struct csi_priv *priv)
{
- struct v4l2_fract *output_fi;
+ struct v4l2_fract *input_fi, *output_fi;
int ret;
+ input_fi = &priv->frame_interval[CSI_SINK_PAD];
output_fi = &priv->frame_interval[priv->active_output_pad];
/* start upstream */
@@ -764,6 +765,17 @@ static int csi_start(struct csi_priv *priv)
if (ret)
return ret;
+ /* Skip first few frames from a BT.656 source */
+ if (priv->upstream_ep.bus_type == V4L2_MBUS_BT656) {
+ u32 delay_usec, bad_frames = 20;
+
+ delay_usec = DIV_ROUND_UP_ULL((u64)USEC_PER_SEC *
+ input_fi->numerator * bad_frames,
+ input_fi->denominator);
+
+ usleep_range(delay_usec, delay_usec + 1000);
+ }
+
if (priv->dest == IPU_CSI_DEST_IDMAC) {
ret = csi_idmac_start(priv);
if (ret)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 177/700] hwmon: (max31790) Report correct current pwm duty cycles
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (175 preceding siblings ...)
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@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 178/700] hwmon: (max31790) Fix pwmX_enable attributes Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Kundrát,
Václav Kubernát, Guenter Roeck,
Václav Kubernát, Sasha Levin
From: Guenter Roeck <linux@roeck-us.net>
[ Upstream commit 897f6339893b741a5d68ae8e2475df65946041c2 ]
The MAX31790 has two sets of registers for pwm duty cycles, one to request
a duty cycle and one to read the actual current duty cycle. Both do not
have to be the same.
When reporting the pwm duty cycle to the user, the actual pwm duty cycle
from pwm duty cycle registers needs to be reported. When setting it, the
pwm target duty cycle needs to be written. Since we don't know the actual
pwm duty cycle after a target pwm duty cycle has been written, set the
valid flag to false to indicate that actual pwm duty cycle should be read
from the chip instead of using cached values.
Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Cc: Václav Kubernát <kubernat@cesnet.cz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Václav Kubernát <kubernat@ceesnet.cz>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Link: https://lore.kernel.org/r/20210526154022.3223012-3-linux@roeck-us.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/hwmon/max31790.rst | 3 ++-
drivers/hwmon/max31790.c | 6 +++---
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/Documentation/hwmon/max31790.rst b/Documentation/hwmon/max31790.rst
index f301385d8cef..54ff0f49e28f 100644
--- a/Documentation/hwmon/max31790.rst
+++ b/Documentation/hwmon/max31790.rst
@@ -39,5 +39,6 @@ fan[1-12]_input RO fan tachometer speed in RPM
fan[1-12]_fault RO fan experienced fault
fan[1-6]_target RW desired fan speed in RPM
pwm[1-6]_enable RW regulator mode, 0=disabled, 1=manual mode, 2=rpm mode
-pwm[1-6] RW fan target duty cycle (0-255)
+pwm[1-6] RW read: current pwm duty cycle,
+ write: target pwm duty cycle (0-255)
================== === =======================================================
diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c
index 86e6c71db685..8ad7a45bfe68 100644
--- a/drivers/hwmon/max31790.c
+++ b/drivers/hwmon/max31790.c
@@ -104,7 +104,7 @@ static struct max31790_data *max31790_update_device(struct device *dev)
data->tach[NR_CHANNEL + i] = rv;
} else {
rv = i2c_smbus_read_word_swapped(client,
- MAX31790_REG_PWMOUT(i));
+ MAX31790_REG_PWM_DUTY_CYCLE(i));
if (rv < 0)
goto abort;
data->pwm[i] = rv;
@@ -299,10 +299,10 @@ static int max31790_write_pwm(struct device *dev, u32 attr, int channel,
err = -EINVAL;
break;
}
- data->pwm[channel] = val << 8;
+ data->valid = false;
err = i2c_smbus_write_word_swapped(client,
MAX31790_REG_PWMOUT(channel),
- data->pwm[channel]);
+ val << 8);
break;
case hwmon_pwm_enable:
fan_config = data->fan_config[channel];
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 178/700] hwmon: (max31790) Fix pwmX_enable attributes
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (176 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 177/700] hwmon: (max31790) Report correct current pwm duty cycles Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 179/700] sched/fair: Take thermal pressure into account while estimating energy Greg Kroah-Hartman
` (527 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Kundrát,
Václav Kubernát, Guenter Roeck, Sasha Levin
From: Guenter Roeck <linux@roeck-us.net>
[ Upstream commit 148c847c9e5a54b99850617bf9c143af9a344f92 ]
pwmX_enable supports three possible values:
0: Fan control disabled. Duty cycle is fixed to 0%
1: Fan control enabled, pwm mode. Duty cycle is determined by
values written into Target Duty Cycle registers.
2: Fan control enabled, rpm mode
Duty cycle is adjusted such that fan speed matches
the values in Target Count registers
The current code does not do this; instead, it mixes pwm control
configuration with fan speed monitoring configuration. Worse, it
reports that pwm control would be disabled (pwmX_enable==0) when
it is in fact enabled in pwm mode. Part of the problem may be that
the chip sets the "TACH input enable" bit on its own whenever the
mode bit is set to RPM mode, but that doesn't mean that "TACH input
enable" accurately reflects the pwm mode.
Fix it up and only handle pwm control with the pwmX_enable attributes.
In the documentation, clarify that disabling pwm control (pwmX_enable=0)
sets the pwm duty cycle to 0%. In the code, explain why TACH_INPUT_EN
is set together with RPM_MODE.
While at it, only update the configuration register if the configuration
has changed, and only update the cached configuration if updating the
chip configuration was successful.
Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Cc: Václav Kubernát <kubernat@cesnet.cz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Václav Kubernát <kubernat@cesnet.cz>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Link: https://lore.kernel.org/r/20210526154022.3223012-4-linux@roeck-us.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/hwmon/max31790.rst | 2 +-
drivers/hwmon/max31790.c | 41 ++++++++++++++++++++------------
2 files changed, 27 insertions(+), 16 deletions(-)
diff --git a/Documentation/hwmon/max31790.rst b/Documentation/hwmon/max31790.rst
index 54ff0f49e28f..7b097c3b9b90 100644
--- a/Documentation/hwmon/max31790.rst
+++ b/Documentation/hwmon/max31790.rst
@@ -38,7 +38,7 @@ Sysfs entries
fan[1-12]_input RO fan tachometer speed in RPM
fan[1-12]_fault RO fan experienced fault
fan[1-6]_target RW desired fan speed in RPM
-pwm[1-6]_enable RW regulator mode, 0=disabled, 1=manual mode, 2=rpm mode
+pwm[1-6]_enable RW regulator mode, 0=disabled (duty cycle=0%), 1=manual mode, 2=rpm mode
pwm[1-6] RW read: current pwm duty cycle,
write: target pwm duty cycle (0-255)
================== === =======================================================
diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c
index 8ad7a45bfe68..76aa96f5b984 100644
--- a/drivers/hwmon/max31790.c
+++ b/drivers/hwmon/max31790.c
@@ -27,6 +27,7 @@
/* Fan Config register bits */
#define MAX31790_FAN_CFG_RPM_MODE 0x80
+#define MAX31790_FAN_CFG_CTRL_MON 0x10
#define MAX31790_FAN_CFG_TACH_INPUT_EN 0x08
#define MAX31790_FAN_CFG_TACH_INPUT 0x01
@@ -271,12 +272,12 @@ static int max31790_read_pwm(struct device *dev, u32 attr, int channel,
*val = data->pwm[channel] >> 8;
return 0;
case hwmon_pwm_enable:
- if (fan_config & MAX31790_FAN_CFG_RPM_MODE)
+ if (fan_config & MAX31790_FAN_CFG_CTRL_MON)
+ *val = 0;
+ else if (fan_config & MAX31790_FAN_CFG_RPM_MODE)
*val = 2;
- else if (fan_config & MAX31790_FAN_CFG_TACH_INPUT_EN)
- *val = 1;
else
- *val = 0;
+ *val = 1;
return 0;
default:
return -EOPNOTSUPP;
@@ -307,23 +308,33 @@ static int max31790_write_pwm(struct device *dev, u32 attr, int channel,
case hwmon_pwm_enable:
fan_config = data->fan_config[channel];
if (val == 0) {
- fan_config &= ~(MAX31790_FAN_CFG_TACH_INPUT_EN |
- MAX31790_FAN_CFG_RPM_MODE);
+ fan_config |= MAX31790_FAN_CFG_CTRL_MON;
+ /*
+ * Disable RPM mode; otherwise disabling fan speed
+ * monitoring is not possible.
+ */
+ fan_config &= ~MAX31790_FAN_CFG_RPM_MODE;
} else if (val == 1) {
- fan_config = (fan_config |
- MAX31790_FAN_CFG_TACH_INPUT_EN) &
- ~MAX31790_FAN_CFG_RPM_MODE;
+ fan_config &= ~(MAX31790_FAN_CFG_CTRL_MON | MAX31790_FAN_CFG_RPM_MODE);
} else if (val == 2) {
- fan_config |= MAX31790_FAN_CFG_TACH_INPUT_EN |
- MAX31790_FAN_CFG_RPM_MODE;
+ fan_config &= ~MAX31790_FAN_CFG_CTRL_MON;
+ /*
+ * The chip sets MAX31790_FAN_CFG_TACH_INPUT_EN on its
+ * own if MAX31790_FAN_CFG_RPM_MODE is set.
+ * Do it here as well to reflect the actual register
+ * value in the cache.
+ */
+ fan_config |= (MAX31790_FAN_CFG_RPM_MODE | MAX31790_FAN_CFG_TACH_INPUT_EN);
} else {
err = -EINVAL;
break;
}
- data->fan_config[channel] = fan_config;
- err = i2c_smbus_write_byte_data(client,
- MAX31790_REG_FAN_CONFIG(channel),
- fan_config);
+ if (fan_config != data->fan_config[channel]) {
+ err = i2c_smbus_write_byte_data(client, MAX31790_REG_FAN_CONFIG(channel),
+ fan_config);
+ if (!err)
+ data->fan_config[channel] = fan_config;
+ }
break;
default:
err = -EOPNOTSUPP;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 179/700] sched/fair: Take thermal pressure into account while estimating energy
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (177 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 178/700] hwmon: (max31790) Fix pwmX_enable attributes Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 180/700] drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe() Greg Kroah-Hartman
` (526 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lukasz Luba, Peter Zijlstra (Intel),
Vincent Guittot, Dietmar Eggemann, Sasha Levin
From: Lukasz Luba <lukasz.luba@arm.com>
[ Upstream commit 489f16459e0008c7a5c4c5af34bd80898aa82c2d ]
Energy Aware Scheduling (EAS) needs to be able to predict the frequency
requests made by the SchedUtil governor to properly estimate energy used
in the future. It has to take into account CPUs utilization and forecast
Performance Domain (PD) frequency. There is a corner case when the max
allowed frequency might be reduced due to thermal. SchedUtil is aware of
that reduced frequency, so it should be taken into account also in EAS
estimations.
SchedUtil, as a CPUFreq governor, knows the maximum allowed frequency of
a CPU, thanks to cpufreq_driver_resolve_freq() and internal clamping
to 'policy::max'. SchedUtil is responsible to respect that upper limit
while setting the frequency through CPUFreq drivers. This effective
frequency is stored internally in 'sugov_policy::next_freq' and EAS has
to predict that value.
In the existing code the raw value of arch_scale_cpu_capacity() is used
for clamping the returned CPU utilization from effective_cpu_util().
This patch fixes issue with too big single CPU utilization, by introducing
clamping to the allowed CPU capacity. The allowed CPU capacity is a CPU
capacity reduced by thermal pressure raw value.
Thanks to knowledge about allowed CPU capacity, we don't get too big value
for a single CPU utilization, which is then added to the util sum. The
util sum is used as a source of information for estimating whole PD energy.
To avoid wrong energy estimation in EAS (due to capped frequency), make
sure that the calculation of util sum is aware of allowed CPU capacity.
This thermal pressure might be visible in scenarios where the CPUs are not
heavily loaded, but some other component (like GPU) drastically reduced
available power budget and increased the SoC temperature. Thus, we still
use EAS for task placement and CPUs are not over-utilized.
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lore.kernel.org/r/20210614191128.22735-1-lukasz.luba@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/fair.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 272c583fc167..20ac5dff9a0c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6564,8 +6564,11 @@ compute_energy(struct task_struct *p, int dst_cpu, struct perf_domain *pd)
struct cpumask *pd_mask = perf_domain_span(pd);
unsigned long cpu_cap = arch_scale_cpu_capacity(cpumask_first(pd_mask));
unsigned long max_util = 0, sum_util = 0;
+ unsigned long _cpu_cap = cpu_cap;
int cpu;
+ _cpu_cap -= arch_scale_thermal_pressure(cpumask_first(pd_mask));
+
/*
* The capacity state of CPUs of the current rd can be driven by CPUs
* of another rd if they belong to the same pd. So, account for the
@@ -6601,8 +6604,10 @@ compute_energy(struct task_struct *p, int dst_cpu, struct perf_domain *pd)
* is already enough to scale the EM reported power
* consumption at the (eventually clamped) cpu_capacity.
*/
- sum_util += effective_cpu_util(cpu, util_running, cpu_cap,
- ENERGY_UTIL, NULL);
+ cpu_util = effective_cpu_util(cpu, util_running, cpu_cap,
+ ENERGY_UTIL, NULL);
+
+ sum_util += min(cpu_util, _cpu_cap);
/*
* Performance domain frequency: utilization clamping
@@ -6613,7 +6618,7 @@ compute_energy(struct task_struct *p, int dst_cpu, struct perf_domain *pd)
*/
cpu_util = effective_cpu_util(cpu, util_freq, cpu_cap,
FREQUENCY_UTIL, tsk);
- max_util = max(max_util, cpu_util);
+ max_util = max(max_util, min(cpu_util, _cpu_cap));
}
return em_cpu_energy(pd->em_pd, max_util, sum_util);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 180/700] drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (178 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 179/700] sched/fair: Take thermal pressure into account while estimating energy Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 181/700] KVM: arm64: Restore PMU configuration on first run Greg Kroah-Hartman
` (525 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jing Xiangfeng, Dong Aisheng,
Will Deacon, Sasha Levin
From: Jing Xiangfeng <jingxiangfeng@huawei.com>
[ Upstream commit d96b1b8c9f79b6bb234a31c80972a6f422079376 ]
ddr_perf_probe() misses to call ida_simple_remove() in an error path.
Jump to cpuhp_state_err to fix it.
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20210617122614.166823-1-jingxiangfeng@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/perf/fsl_imx8_ddr_perf.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index be1f26b62ddb..4a56849f0400 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -706,8 +706,10 @@ static int ddr_perf_probe(struct platform_device *pdev)
name = devm_kasprintf(&pdev->dev, GFP_KERNEL, DDR_PERF_DEV_NAME "%d",
num);
- if (!name)
- return -ENOMEM;
+ if (!name) {
+ ret = -ENOMEM;
+ goto cpuhp_state_err;
+ }
pmu->devtype_data = of_device_get_match_data(&pdev->dev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 181/700] KVM: arm64: Restore PMU configuration on first run
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (179 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 180/700] drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 182/700] KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors Greg Kroah-Hartman
` (524 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jinank Jain, Marc Zyngier, Sasha Levin
From: Marc Zyngier <maz@kernel.org>
[ Upstream commit d0c94c49792cf780cbfefe29f81bb8c3b73bc76b ]
Restoring a guest with an active virtual PMU results in no perf
counters being instanciated on the host side. Not quite what
you'd expect from a restore.
In order to fix this, force a writeback of PMCR_EL0 on the first
run of a vcpu (using a new request so that it happens once the
vcpu has been loaded). This will in turn create all the host-side
counters that were missing.
Reported-by: Jinank Jain <jinankj@amazon.de>
Tested-by: Jinank Jain <jinankj@amazon.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/87wnrbylxv.wl-maz@kernel.org
Link: https://lore.kernel.org/r/b53dfcf9bbc4db7f96154b1cd5188d72b9766358.camel@amazon.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/include/asm/kvm_host.h | 1 +
arch/arm64/kvm/arm.c | 4 ++++
arch/arm64/kvm/pmu-emul.c | 3 +++
3 files changed, 8 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 858c2fcfc043..4e4356add46e 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -46,6 +46,7 @@
#define KVM_REQ_VCPU_RESET KVM_ARCH_REQ(2)
#define KVM_REQ_RECORD_STEAL KVM_ARCH_REQ(3)
#define KVM_REQ_RELOAD_GICv4 KVM_ARCH_REQ(4)
+#define KVM_REQ_RELOAD_PMU KVM_ARCH_REQ(5)
#define KVM_DIRTY_LOG_MANUAL_CAPS (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | \
KVM_DIRTY_LOG_INITIALLY_SET)
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 7730b81aad6d..8455c5c30116 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -684,6 +684,10 @@ static void check_vcpu_requests(struct kvm_vcpu *vcpu)
vgic_v4_load(vcpu);
preempt_enable();
}
+
+ if (kvm_check_request(KVM_REQ_RELOAD_PMU, vcpu))
+ kvm_pmu_handle_pmcr(vcpu,
+ __vcpu_sys_reg(vcpu, PMCR_EL0));
}
}
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index e32c6e139a09..e9699d10d2bd 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -850,6 +850,9 @@ int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu)
return -EINVAL;
}
+ /* One-off reload of the PMU on first run */
+ kvm_make_request(KVM_REQ_RELOAD_PMU, vcpu);
+
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 182/700] KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (180 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 181/700] KVM: arm64: Restore PMU configuration on first run Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 183/700] btrfs: fix error handling in __btrfs_update_delayed_inode Greg Kroah-Hartman
` (523 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Paul Mackerras, Nicholas Piggin,
Fabiano Rosas, Michael Ellerman, Sasha Levin
From: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[ Upstream commit 77bbbc0cf84834ed130838f7ac1988567f4d0288 ]
The POWER9 vCPU TLB management code assumes all threads in a core share
a TLB, and that TLBIEL execued by one thread will invalidate TLBs for
all threads. This is not the case for SMT8 capable POWER9 and POWER10
(big core) processors, where the TLB is split between groups of threads.
This results in TLB multi-hits, random data corruption, etc.
Fix this by introducing cpu_first_tlb_thread_sibling etc., to determine
which siblings share TLBs, and use that in the guest TLB flushing code.
[npiggin@gmail.com: add changelog and comment]
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210602040441.3984352-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/include/asm/cputhreads.h | 30 +++++++++++++++++++++++++++
arch/powerpc/kvm/book3s_hv.c | 13 ++++++------
arch/powerpc/kvm/book3s_hv_builtin.c | 2 +-
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +-
4 files changed, 39 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/include/asm/cputhreads.h b/arch/powerpc/include/asm/cputhreads.h
index 98c8bd155bf9..b167186aaee4 100644
--- a/arch/powerpc/include/asm/cputhreads.h
+++ b/arch/powerpc/include/asm/cputhreads.h
@@ -98,6 +98,36 @@ static inline int cpu_last_thread_sibling(int cpu)
return cpu | (threads_per_core - 1);
}
+/*
+ * tlb_thread_siblings are siblings which share a TLB. This is not
+ * architected, is not something a hypervisor could emulate and a future
+ * CPU may change behaviour even in compat mode, so this should only be
+ * used on PowerNV, and only with care.
+ */
+static inline int cpu_first_tlb_thread_sibling(int cpu)
+{
+ if (cpu_has_feature(CPU_FTR_ARCH_300) && (threads_per_core == 8))
+ return cpu & ~0x6; /* Big Core */
+ else
+ return cpu_first_thread_sibling(cpu);
+}
+
+static inline int cpu_last_tlb_thread_sibling(int cpu)
+{
+ if (cpu_has_feature(CPU_FTR_ARCH_300) && (threads_per_core == 8))
+ return cpu | 0x6; /* Big Core */
+ else
+ return cpu_last_thread_sibling(cpu);
+}
+
+static inline int cpu_tlb_thread_sibling_step(void)
+{
+ if (cpu_has_feature(CPU_FTR_ARCH_300) && (threads_per_core == 8))
+ return 2; /* Big Core */
+ else
+ return 1;
+}
+
static inline u32 get_tensr(void)
{
#ifdef CONFIG_BOOKE
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 60c5bc0c130c..1c6e0a52fb53 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2619,7 +2619,7 @@ static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
cpumask_t *cpu_in_guest;
int i;
- cpu = cpu_first_thread_sibling(cpu);
+ cpu = cpu_first_tlb_thread_sibling(cpu);
if (nested) {
cpumask_set_cpu(cpu, &nested->need_tlb_flush);
cpu_in_guest = &nested->cpu_in_guest;
@@ -2633,9 +2633,10 @@ static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
* the other side is the first smp_mb() in kvmppc_run_core().
*/
smp_mb();
- for (i = 0; i < threads_per_core; ++i)
- if (cpumask_test_cpu(cpu + i, cpu_in_guest))
- smp_call_function_single(cpu + i, do_nothing, NULL, 1);
+ for (i = cpu; i <= cpu_last_tlb_thread_sibling(cpu);
+ i += cpu_tlb_thread_sibling_step())
+ if (cpumask_test_cpu(i, cpu_in_guest))
+ smp_call_function_single(i, do_nothing, NULL, 1);
}
static void kvmppc_prepare_radix_vcpu(struct kvm_vcpu *vcpu, int pcpu)
@@ -2666,8 +2667,8 @@ static void kvmppc_prepare_radix_vcpu(struct kvm_vcpu *vcpu, int pcpu)
*/
if (prev_cpu != pcpu) {
if (prev_cpu >= 0 &&
- cpu_first_thread_sibling(prev_cpu) !=
- cpu_first_thread_sibling(pcpu))
+ cpu_first_tlb_thread_sibling(prev_cpu) !=
+ cpu_first_tlb_thread_sibling(pcpu))
radix_flush_cpu(kvm, prev_cpu, vcpu);
if (nested)
nested->prev_cpu[vcpu->arch.nested_vcpu_id] = pcpu;
diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 158d309b42a3..b5e5d07cb40f 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -797,7 +797,7 @@ void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu,
* Thus we make all 4 threads use the same bit.
*/
if (cpu_has_feature(CPU_FTR_ARCH_300))
- pcpu = cpu_first_thread_sibling(pcpu);
+ pcpu = cpu_first_tlb_thread_sibling(pcpu);
if (nested)
need_tlb_flush = &nested->need_tlb_flush;
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 88da2764c1bb..3ddc83d2e849 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -67,7 +67,7 @@ static int global_invalidates(struct kvm *kvm)
* so use the bit for the first thread to represent the core.
*/
if (cpu_has_feature(CPU_FTR_ARCH_300))
- cpu = cpu_first_thread_sibling(cpu);
+ cpu = cpu_first_tlb_thread_sibling(cpu);
cpumask_clear_cpu(cpu, &kvm->arch.need_tlb_flush);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 183/700] btrfs: fix error handling in __btrfs_update_delayed_inode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (181 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 182/700] KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 184/700] btrfs: abort transaction if we fail to update the delayed inode Greg Kroah-Hartman
` (522 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Josef Bacik, David Sterba, Sasha Levin
From: Josef Bacik <josef@toxicpanda.com>
[ Upstream commit bb385bedded3ccbd794559600de4a09448810f4a ]
If we get an error while looking up the inode item we'll simply bail
without cleaning up the delayed node. This results in this style of
warning happening on commit:
WARNING: CPU: 0 PID: 76403 at fs/btrfs/delayed-inode.c:1365 btrfs_assert_delayed_root_empty+0x5b/0x90
CPU: 0 PID: 76403 Comm: fsstress Tainted: G W 5.13.0-rc1+ #373
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
RIP: 0010:btrfs_assert_delayed_root_empty+0x5b/0x90
RSP: 0018:ffffb8bb815a7e50 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff95d6d07e1888 RCX: ffff95d6c0fa3000
RDX: 0000000000000002 RSI: 000000000029e91c RDI: ffff95d6c0fc8060
RBP: ffff95d6c0fc8060 R08: 00008d6d701a2c1d R09: 0000000000000000
R10: ffff95d6d1760ea0 R11: 0000000000000001 R12: ffff95d6c15a4d00
R13: ffff95d6c0fa3000 R14: 0000000000000000 R15: ffffb8bb815a7e90
FS: 00007f490e8dbb80(0000) GS:ffff95d73bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e75555cb0 CR3: 00000001101ce001 CR4: 0000000000370ef0
Call Trace:
btrfs_commit_transaction+0x43c/0xb00
? finish_wait+0x80/0x80
? vfs_fsync_range+0x90/0x90
iterate_supers+0x8c/0x100
ksys_sync+0x50/0x90
__do_sys_sync+0xa/0x10
do_syscall_64+0x3d/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Because the iref isn't dropped and this leaves an elevated node->count,
so any release just re-queues it onto the delayed inodes list. Fix this
by going to the out label to handle the proper cleanup of the delayed
node.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/delayed-inode.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index c1d2b6786129..2f73846d712f 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1025,12 +1025,10 @@ static int __btrfs_update_delayed_inode(struct btrfs_trans_handle *trans,
nofs_flag = memalloc_nofs_save();
ret = btrfs_lookup_inode(trans, root, path, &key, mod);
memalloc_nofs_restore(nofs_flag);
- if (ret > 0) {
- btrfs_release_path(path);
- return -ENOENT;
- } else if (ret < 0) {
- return ret;
- }
+ if (ret > 0)
+ ret = -ENOENT;
+ if (ret < 0)
+ goto out;
leaf = path->nodes[0];
inode_item = btrfs_item_ptr(leaf, path->slots[0],
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 184/700] btrfs: abort transaction if we fail to update the delayed inode
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` (182 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 183/700] btrfs: fix error handling in __btrfs_update_delayed_inode Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 185/700] btrfs: always abort the transaction if we abort a trans handle Greg Kroah-Hartman
` (521 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Josef Bacik, David Sterba, Sasha Levin
From: Josef Bacik <josef@toxicpanda.com>
[ Upstream commit 04587ad9bef6ce9d510325b4ba9852b6129eebdb ]
If we fail to update the delayed inode we need to abort the transaction,
because we could leave an inode with the improper counts or some other
such corruption behind.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/delayed-inode.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 2f73846d712f..55dad12a5ce0 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1066,6 +1066,14 @@ err_out:
btrfs_delayed_inode_release_metadata(fs_info, node, (ret < 0));
btrfs_release_delayed_inode(node);
+ /*
+ * If we fail to update the delayed inode we need to abort the
+ * transaction, because we could leave the inode with the improper
+ * counts behind.
+ */
+ if (ret && ret != -ENOENT)
+ btrfs_abort_transaction(trans, ret);
+
return ret;
search:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 185/700] btrfs: always abort the transaction if we abort a trans handle
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (183 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 184/700] btrfs: abort transaction if we fail to update the delayed inode Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 186/700] btrfs: sysfs: fix format string for some discard stats Greg Kroah-Hartman
` (520 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Josef Bacik, David Sterba, Sasha Levin
From: Josef Bacik <josef@toxicpanda.com>
[ Upstream commit 5963ffcaf383134985a5a2d8a4baa582d3999e0a ]
While stress testing our error handling I noticed that sometimes we
would still commit the transaction even though we had aborted the
transaction.
Currently we track if a trans handle has dirtied any metadata, and if it
hasn't we mark the filesystem as having an error (so no new transactions
can be started), but we will allow the current transaction to complete
as we do not mark the transaction itself as having been aborted.
This sounds good in theory, but we were not properly tracking IO errors
in btrfs_finish_ordered_io, and thus committing the transaction with
bogus free space data. This isn't necessarily a problem per-se with the
free space cache, as the other guards in place would have kept us from
accepting the free space cache as valid, but highlights a real world
case where we had a bug and could have corrupted the filesystem because
of it.
This "skip abort on empty trans handle" is nice in theory, but assumes
we have perfect error handling everywhere, which we clearly do not.
Also we do not allow further transactions to be started, so all this
does is save the last transaction that was happening, which doesn't
necessarily gain us anything other than the potential for real
corruption.
Remove this particular bit of code, if we decide we need to abort the
transaction then abort the current one and keep us from doing real harm
to the file system, regardless of whether this specific trans handle
dirtied anything or not.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/ctree.c | 5 +----
fs/btrfs/extent-tree.c | 1 -
fs/btrfs/super.c | 11 -----------
fs/btrfs/transaction.c | 8 --------
fs/btrfs/transaction.h | 1 -
5 files changed, 1 insertion(+), 25 deletions(-)
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index f43ce82a6aed..8f48553d861e 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1498,7 +1498,6 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans,
trans->transid, fs_info->generation);
if (!should_cow_block(trans, root, buf)) {
- trans->dirty = true;
*cow_ret = buf;
return 0;
}
@@ -2670,10 +2669,8 @@ again:
* then we don't want to set the path blocking,
* so we test it here
*/
- if (!should_cow_block(trans, root, b)) {
- trans->dirty = true;
+ if (!should_cow_block(trans, root, b))
goto cow_done;
- }
/*
* must have write locks on this node and the
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 27c368007481..1cde6f84f145 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4799,7 +4799,6 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,
set_extent_dirty(&trans->transaction->dirty_pages, buf->start,
buf->start + buf->len - 1, GFP_NOFS);
}
- trans->dirty = true;
/* this returns a buffer locked for blocking */
return buf;
}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f7a4ad86adee..b3b7f3066cfa 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -273,17 +273,6 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info = trans->fs_info;
WRITE_ONCE(trans->aborted, errno);
- /* Nothing used. The other threads that have joined this
- * transaction may be able to continue. */
- if (!trans->dirty && list_empty(&trans->new_bgs)) {
- const char *errstr;
-
- errstr = btrfs_decode_error(errno);
- btrfs_warn(fs_info,
- "%s:%d: Aborting unused transaction(%s).",
- function, line, errstr);
- return;
- }
WRITE_ONCE(trans->transaction->aborted, errno);
/* Wake up anybody who may be waiting on this transaction */
wake_up(&fs_info->transaction_wait);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index d678c24250a4..81c8567dffee 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -2056,14 +2056,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans)
ASSERT(refcount_read(&trans->use_count) == 1);
- /*
- * Some places just start a transaction to commit it. We need to make
- * sure that if this commit fails that the abort code actually marks the
- * transaction as failed, so set trans->dirty to make the abort code do
- * the right thing.
- */
- trans->dirty = true;
-
/* Stop the commit early if ->aborted is set */
if (TRANS_ABORTED(cur_trans)) {
ret = cur_trans->aborted;
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 364cfbb4c5c5..c49e2266b28b 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -143,7 +143,6 @@ struct btrfs_trans_handle {
bool allocating_chunk;
bool can_flush_pending_bgs;
bool reloc_reserved;
- bool dirty;
bool in_fsync;
struct btrfs_root *root;
struct btrfs_fs_info *fs_info;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 186/700] btrfs: sysfs: fix format string for some discard stats
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (184 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 185/700] btrfs: always abort the transaction if we abort a trans handle Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 187/700] btrfs: dont clear page extent mapped if were not invalidating the full page Greg Kroah-Hartman
` (519 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Qu Wenruo, Anand Jain, David Sterba,
Sasha Levin
From: David Sterba <dsterba@suse.com>
[ Upstream commit 8c5ec995616f1202ab92e195fd75d6f60d86f85c ]
The type of discard_bitmap_bytes and discard_extent_bytes is u64 so the
format should be %llu, though the actual values would hardly ever
overflow to negative values.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/sysfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 6eb1c50fa98c..bd95446869d0 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -414,7 +414,7 @@ static ssize_t btrfs_discard_bitmap_bytes_show(struct kobject *kobj,
{
struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);
- return scnprintf(buf, PAGE_SIZE, "%lld\n",
+ return scnprintf(buf, PAGE_SIZE, "%llu\n",
fs_info->discard_ctl.discard_bitmap_bytes);
}
BTRFS_ATTR(discard, discard_bitmap_bytes, btrfs_discard_bitmap_bytes_show);
@@ -436,7 +436,7 @@ static ssize_t btrfs_discard_extent_bytes_show(struct kobject *kobj,
{
struct btrfs_fs_info *fs_info = discard_to_fs_info(kobj);
- return scnprintf(buf, PAGE_SIZE, "%lld\n",
+ return scnprintf(buf, PAGE_SIZE, "%llu\n",
fs_info->discard_ctl.discard_extent_bytes);
}
BTRFS_ATTR(discard, discard_extent_bytes, btrfs_discard_extent_bytes_show);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 187/700] btrfs: dont clear page extent mapped if were not invalidating the full page
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` (185 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 186/700] btrfs: sysfs: fix format string for some discard stats Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 188/700] btrfs: disable build on platforms having page size 256K Greg Kroah-Hartman
` (518 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Qu Wenruo, David Sterba, Sasha Levin,
Ritesh Harjani, Anand Jain
From: Qu Wenruo <wqu@suse.com>
[ Upstream commit bcd77455d590eaa0422a5e84ae852007cfce574a ]
[BUG]
With current btrfs subpage rw support, the following script can lead to
fs hang:
$ mkfs.btrfs -f -s 4k $dev
$ mount $dev -o nospace_cache $mnt
$ fsstress -w -n 100 -p 1 -s 1608140256 -v -d $mnt
The fs will hang at btrfs_start_ordered_extent().
[CAUSE]
In above test case, btrfs_invalidate() will be called with the following
parameters:
offset = 0 length = 53248 page dirty = 1 subpage dirty bitmap = 0x2000
Since @offset is 0, btrfs_invalidate() will try to invalidate the full
page, and finally call clear_page_extent_mapped() which will detach
subpage structure from the page.
And since the page no longer has subpage structure, the subpage dirty
bitmap will be cleared, preventing the dirty range from being written
back, thus no way to wake up the ordered extent.
[FIX]
Just follow other filesystems, only to invalidate the page if the range
covers the full page.
There are cases like truncate_setsize() which can call
btrfs_invalidatepage() with offset == 0 and length != 0 for the last
page of an inode.
Although the old code will still try to invalidate the full page, we are
still safe to just wait for ordered extent to finish.
So it shouldn't cause extra problems.
Tested-by: Ritesh Harjani <riteshh@linux.ibm.com> # [ppc64]
Tested-by: Anand Jain <anand.jain@oracle.com> # [aarch64]
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/inode.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3e7173c7660d..1b22ded1a799 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8386,7 +8386,19 @@ static void btrfs_invalidatepage(struct page *page, unsigned int offset,
*/
wait_on_page_writeback(page);
- if (offset) {
+ /*
+ * For subpage case, we have call sites like
+ * btrfs_punch_hole_lock_range() which passes range not aligned to
+ * sectorsize.
+ * If the range doesn't cover the full page, we don't need to and
+ * shouldn't clear page extent mapped, as page->private can still
+ * record subpage dirty bits for other part of the range.
+ *
+ * For cases that can invalidate the full even the range doesn't
+ * cover the full page, like invalidating the last page, we're
+ * still safe to wait for ordered extent to finish.
+ */
+ if (!(offset == 0 && length == PAGE_SIZE)) {
btrfs_releasepage(page, GFP_NOFS);
return;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 188/700] btrfs: disable build on platforms having page size 256K
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (186 preceding siblings ...)
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@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 189/700] locking/lockdep: Fix the dep path printing for backwards BFS Greg Kroah-Hartman
` (517 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Christophe Leroy,
David Sterba, Sasha Levin
From: Christophe Leroy <christophe.leroy@csgroup.eu>
[ Upstream commit b05fbcc36be1f8597a1febef4892053a0b2f3f60 ]
With a config having PAGE_SIZE set to 256K, BTRFS build fails
with the following message
include/linux/compiler_types.h:326:38: error: call to
'__compiletime_assert_791' declared with attribute error:
BUILD_BUG_ON failed: (BTRFS_MAX_COMPRESSED % PAGE_SIZE) != 0
BTRFS_MAX_COMPRESSED being 128K, BTRFS cannot support platforms with
256K pages at the time being.
There are two platforms that can select 256K pages:
- hexagon
- powerpc
Disable BTRFS when 256K page size is selected. Supporting this would
require changes to the subpage mode that's currently being developed.
Given that 256K is many times larger than page sizes commonly used and
for what the algorithms and structures have been tuned, it's out of
scope and disabling build is a reasonable option.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 68b95ad82126..520a0f6a7d9e 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -18,6 +18,8 @@ config BTRFS_FS
select RAID6_PQ
select XOR_BLOCKS
select SRCU
+ depends on !PPC_256K_PAGES # powerpc
+ depends on !PAGE_SIZE_256KB # hexagon
help
Btrfs is a general purpose copy-on-write filesystem with extents,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 189/700] locking/lockdep: Fix the dep path printing for backwards BFS
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (187 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 188/700] btrfs: disable build on platforms having page size 256K Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 190/700] lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() Greg Kroah-Hartman
` (516 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johannes Berg, Boqun Feng,
Peter Zijlstra (Intel),
Sasha Levin
From: Boqun Feng <boqun.feng@gmail.com>
[ Upstream commit 69c7a5fb2482636f525f016c8333fdb9111ecb9d ]
We use the same code to print backwards lock dependency path as the
forwards lock dependency path, and this could result into incorrect
printing because for a backwards lock_list ->trace is not the call trace
where the lock of ->class is acquired.
Fix this by introducing a separate function on printing the backwards
dependency path. Also add a few comments about the printing while we are
at it.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210618170110.3699115-2-boqun.feng@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/locking/lockdep.c | 108 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 106 insertions(+), 2 deletions(-)
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 5bf6b1659215..03a9d9b96045 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2305,7 +2305,56 @@ static void print_lock_class_header(struct lock_class *class, int depth)
}
/*
- * printk the shortest lock dependencies from @start to @end in reverse order:
+ * Dependency path printing:
+ *
+ * After BFS we get a lock dependency path (linked via ->parent of lock_list),
+ * printing out each lock in the dependency path will help on understanding how
+ * the deadlock could happen. Here are some details about dependency path
+ * printing:
+ *
+ * 1) A lock_list can be either forwards or backwards for a lock dependency,
+ * for a lock dependency A -> B, there are two lock_lists:
+ *
+ * a) lock_list in the ->locks_after list of A, whose ->class is B and
+ * ->links_to is A. In this case, we can say the lock_list is
+ * "A -> B" (forwards case).
+ *
+ * b) lock_list in the ->locks_before list of B, whose ->class is A
+ * and ->links_to is B. In this case, we can say the lock_list is
+ * "B <- A" (bacwards case).
+ *
+ * The ->trace of both a) and b) point to the call trace where B was
+ * acquired with A held.
+ *
+ * 2) A "helper" lock_list is introduced during BFS, this lock_list doesn't
+ * represent a certain lock dependency, it only provides an initial entry
+ * for BFS. For example, BFS may introduce a "helper" lock_list whose
+ * ->class is A, as a result BFS will search all dependencies starting with
+ * A, e.g. A -> B or A -> C.
+ *
+ * The notation of a forwards helper lock_list is like "-> A", which means
+ * we should search the forwards dependencies starting with "A", e.g A -> B
+ * or A -> C.
+ *
+ * The notation of a bacwards helper lock_list is like "<- B", which means
+ * we should search the backwards dependencies ending with "B", e.g.
+ * B <- A or B <- C.
+ */
+
+/*
+ * printk the shortest lock dependencies from @root to @leaf in reverse order.
+ *
+ * We have a lock dependency path as follow:
+ *
+ * @root @leaf
+ * | |
+ * V V
+ * ->parent ->parent
+ * | lock_list | <--------- | lock_list | ... | lock_list | <--------- | lock_list |
+ * | -> L1 | | L1 -> L2 | ... |Ln-2 -> Ln-1| | Ln-1 -> Ln|
+ *
+ * , so it's natural that we start from @leaf and print every ->class and
+ * ->trace until we reach the @root.
*/
static void __used
print_shortest_lock_dependencies(struct lock_list *leaf,
@@ -2333,6 +2382,61 @@ print_shortest_lock_dependencies(struct lock_list *leaf,
} while (entry && (depth >= 0));
}
+/*
+ * printk the shortest lock dependencies from @leaf to @root.
+ *
+ * We have a lock dependency path (from a backwards search) as follow:
+ *
+ * @leaf @root
+ * | |
+ * V V
+ * ->parent ->parent
+ * | lock_list | ---------> | lock_list | ... | lock_list | ---------> | lock_list |
+ * | L2 <- L1 | | L3 <- L2 | ... | Ln <- Ln-1 | | <- Ln |
+ *
+ * , so when we iterate from @leaf to @root, we actually print the lock
+ * dependency path L1 -> L2 -> .. -> Ln in the non-reverse order.
+ *
+ * Another thing to notice here is that ->class of L2 <- L1 is L1, while the
+ * ->trace of L2 <- L1 is the call trace of L2, in fact we don't have the call
+ * trace of L1 in the dependency path, which is alright, because most of the
+ * time we can figure out where L1 is held from the call trace of L2.
+ */
+static void __used
+print_shortest_lock_dependencies_backwards(struct lock_list *leaf,
+ struct lock_list *root)
+{
+ struct lock_list *entry = leaf;
+ const struct lock_trace *trace = NULL;
+ int depth;
+
+ /*compute depth from generated tree by BFS*/
+ depth = get_lock_depth(leaf);
+
+ do {
+ print_lock_class_header(entry->class, depth);
+ if (trace) {
+ printk("%*s ... acquired at:\n", depth, "");
+ print_lock_trace(trace, 2);
+ printk("\n");
+ }
+
+ /*
+ * Record the pointer to the trace for the next lock_list
+ * entry, see the comments for the function.
+ */
+ trace = entry->trace;
+
+ if (depth == 0 && (entry != root)) {
+ printk("lockdep:%s bad path found in chain graph\n", __func__);
+ break;
+ }
+
+ entry = get_lock_parent(entry);
+ depth--;
+ } while (entry && (depth >= 0));
+}
+
static void
print_irq_lock_scenario(struct lock_list *safe_entry,
struct lock_list *unsafe_entry,
@@ -2450,7 +2554,7 @@ print_bad_irq_dependency(struct task_struct *curr,
prev_root->trace = save_trace();
if (!prev_root->trace)
return;
- print_shortest_lock_dependencies(backwards_entry, prev_root);
+ print_shortest_lock_dependencies_backwards(backwards_entry, prev_root);
pr_warn("\nthe dependencies between the lock to be acquired");
pr_warn(" and %s-irq-unsafe lock:\n", irqclass);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 190/700] lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (188 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 189/700] locking/lockdep: Fix the dep path printing for backwards BFS Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 191/700] KVM: s390: get rid of register asm usage Greg Kroah-Hartman
` (515 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johannes Berg, Boqun Feng,
Peter Zijlstra (Intel),
Sasha Levin
From: Boqun Feng <boqun.feng@gmail.com>
[ Upstream commit 7b1f8c6179769af6ffa055e1169610b51d71edd5 ]
In the step #3 of check_irq_usage(), we seach backwards to find a lock
whose usage conflicts the usage of @target_entry1 on safe/unsafe.
However, we should only keep the irq-unsafe usage of @target_entry1 into
consideration, because it could be a case where a lock is hardirq-unsafe
but soft-safe, and in check_irq_usage() we find it because its
hardirq-unsafe could result into a hardirq-safe-unsafe deadlock, but
currently since we don't filter out the other usage bits, so we may find
a lock dependency path softirq-unsafe -> softirq-safe, which in fact
doesn't cause a deadlock. And this may cause misleading lockdep splats.
Fix this by only keeping LOCKF_ENABLED_IRQ_ALL bits when we try the
backwards search.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210618170110.3699115-4-boqun.feng@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/locking/lockdep.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 03a9d9b96045..b56c3855756e 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2772,8 +2772,18 @@ static int check_irq_usage(struct task_struct *curr, struct held_lock *prev,
* Step 3: we found a bad match! Now retrieve a lock from the backward
* list whose usage mask matches the exclusive usage mask from the
* lock found on the forward list.
+ *
+ * Note, we should only keep the LOCKF_ENABLED_IRQ_ALL bits, considering
+ * the follow case:
+ *
+ * When trying to add A -> B to the graph, we find that there is a
+ * hardirq-safe L, that L -> ... -> A, and another hardirq-unsafe M,
+ * that B -> ... -> M. However M is **softirq-safe**, if we use exact
+ * invert bits of M's usage_mask, we will find another lock N that is
+ * **softirq-unsafe** and N -> ... -> A, however N -> .. -> M will not
+ * cause a inversion deadlock.
*/
- backward_mask = original_mask(target_entry1->class->usage_mask);
+ backward_mask = original_mask(target_entry1->class->usage_mask & LOCKF_ENABLED_IRQ_ALL);
ret = find_usage_backwards(&this, backward_mask, &target_entry);
if (bfs_error(ret)) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 191/700] KVM: s390: get rid of register asm usage
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (189 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 190/700] lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 192/700] regulator: mt6358: Fix vdram2 .vsel_mask Greg Kroah-Hartman
` (514 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Heiko Carstens,
Christian Borntraeger, Thomas Huth, Cornelia Huck,
Claudio Imbrenda, Sasha Levin
From: Heiko Carstens <hca@linux.ibm.com>
[ Upstream commit 4fa3b91bdee1b08348c82660668ca0ca34e271ad ]
Using register asm statements has been proven to be very error prone,
especially when using code instrumentation where gcc may add function
calls, which clobbers register contents in an unexpected way.
Therefore get rid of register asm statements in kvm code, even though
there is currently nothing wrong with them. This way we know for sure
that this bug class won't be introduced here.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20210621140356.1210771-1-hca@linux.ibm.com
[borntraeger@de.ibm.com: checkpatch strict fix]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/kvm/kvm-s390.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 24ad447e648c..dd7136b3ed9a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -323,31 +323,31 @@ static void allow_cpu_feat(unsigned long nr)
static inline int plo_test_bit(unsigned char nr)
{
- register unsigned long r0 asm("0") = (unsigned long) nr | 0x100;
+ unsigned long function = (unsigned long)nr | 0x100;
int cc;
asm volatile(
+ " lgr 0,%[function]\n"
/* Parameter registers are ignored for "test bit" */
" plo 0,0,0,0(0)\n"
" ipm %0\n"
" srl %0,28\n"
: "=d" (cc)
- : "d" (r0)
- : "cc");
+ : [function] "d" (function)
+ : "cc", "0");
return cc == 0;
}
static __always_inline void __insn32_query(unsigned int opcode, u8 *query)
{
- register unsigned long r0 asm("0") = 0; /* query function */
- register unsigned long r1 asm("1") = (unsigned long) query;
-
asm volatile(
- /* Parameter regs are ignored */
+ " lghi 0,0\n"
+ " lgr 1,%[query]\n"
+ /* Parameter registers are ignored */
" .insn rrf,%[opc] << 16,2,4,6,0\n"
:
- : "d" (r0), "a" (r1), [opc] "i" (opcode)
- : "cc", "memory");
+ : [query] "d" ((unsigned long)query), [opc] "i" (opcode)
+ : "cc", "memory", "0", "1");
}
#define INSN_SORTL 0xb938
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 192/700] regulator: mt6358: Fix vdram2 .vsel_mask
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (190 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 191/700] KVM: s390: get rid of register asm usage Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 193/700] regulator: da9052: Ensure enough delay time for .set_voltage_time_sel Greg Kroah-Hartman
` (513 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hsin-Hsiung Wang, Axel Lin,
Mark Brown, Sasha Levin
From: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
[ Upstream commit 50c9462edcbf900f3d5097ca3ad60171346124de ]
The valid vsel value are 0 and 12, so the .vsel_mask should be 0xf.
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/1624424169-510-1-git-send-email-hsin-hsiung.wang@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/mt6358-regulator.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index 13cb6ac9a892..1d4eb5dc4fac 100644
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -457,7 +457,7 @@ static struct mt6358_regulator_info mt6358_regulators[] = {
MT6358_REG_FIXED("ldo_vaud28", VAUD28,
MT6358_LDO_VAUD28_CON0, 0, 2800000),
MT6358_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
- MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10, 0),
+ MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0xf, 0),
MT6358_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00, 8),
MT6358_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 193/700] regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (191 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 192/700] regulator: mt6358: Fix vdram2 .vsel_mask Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 194/700] media: Fix Media Controller API config checks Greg Kroah-Hartman
` (512 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Axel Lin, Mark Brown, Sasha Levin
From: Axel Lin <axel.lin@ingics.com>
[ Upstream commit a336dc8f683e5be794186b5643cd34cb28dd2c53 ]
Use DIV_ROUND_UP to prevent truncation by integer division issue.
This ensures we return enough delay time.
Also fix returning negative value when new_sel < old_sel.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210618141412.4014912-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/da9052-regulator.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index e18d291c7f21..23fa429ebe76 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -250,7 +250,8 @@ static int da9052_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
case DA9052_ID_BUCK3:
case DA9052_ID_LDO2:
case DA9052_ID_LDO3:
- ret = (new_sel - old_sel) * info->step_uV / 6250;
+ ret = DIV_ROUND_UP(abs(new_sel - old_sel) * info->step_uV,
+ 6250);
break;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 194/700] media: Fix Media Controller API config checks
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (192 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 193/700] regulator: da9052: Ensure enough delay time for .set_voltage_time_sel Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 195/700] ACPI: video: use native backlight for GA401/GA502/GA503 Greg Kroah-Hartman
` (511 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Shuah Khan,
Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Shuah Khan <skhan@linuxfoundation.org>
[ Upstream commit 50e7a31d30e8221632675abed3be306382324ca2 ]
Smatch static checker warns that "mdev" can be null:
sound/usb/media.c:287 snd_media_device_create()
warn: 'mdev' can also be NULL
If CONFIG_MEDIA_CONTROLLER is disabled, this file should not be included
in the build.
The below conditions in the sound/usb/Makefile are in place to ensure that
media.c isn't included in the build.
sound/usb/Makefile:
snd-usb-audio-$(CONFIG_SND_USB_AUDIO_USE_MEDIA_CONTROLLER) += media.o
select SND_USB_AUDIO_USE_MEDIA_CONTROLLER if MEDIA_CONTROLLER &&
(MEDIA_SUPPORT=y || MEDIA_SUPPORT=SND_USB_AUDIO)
The following config check in include/media/media-dev-allocator.h is
in place to enable the API only when CONFIG_MEDIA_CONTROLLER and
CONFIG_USB are enabled.
#if defined(CONFIG_MEDIA_CONTROLLER) && defined(CONFIG_USB)
This check doesn't work as intended when CONFIG_USB=m. When CONFIG_USB=m,
CONFIG_USB_MODULE is defined and CONFIG_USB is not. The above config check
doesn't catch that CONFIG_USB is defined as a module and disables the API.
This results in sound/usb enabling Media Controller specific ALSA driver
code, while Media disables the Media Controller API.
Fix the problem requires two changes:
1. Change the check to use IS_ENABLED to detect when CONFIG_USB is enabled
as a module or static. Since CONFIG_MEDIA_CONTROLLER is a bool, leave
the check unchanged to be consistent with drivers/media/Makefile.
2. Change the drivers/media/mc/Makefile to include mc-dev-allocator.o
in mc-objs when CONFIG_USB is enabled.
Link: https://lore.kernel.org/alsa-devel/YLeAvT+R22FQ%2FEyw@mwanda/
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/mc/Makefile | 2 +-
include/media/media-dev-allocator.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/mc/Makefile b/drivers/media/mc/Makefile
index 119037f0e686..2b7af42ba59c 100644
--- a/drivers/media/mc/Makefile
+++ b/drivers/media/mc/Makefile
@@ -3,7 +3,7 @@
mc-objs := mc-device.o mc-devnode.o mc-entity.o \
mc-request.o
-ifeq ($(CONFIG_USB),y)
+ifneq ($(CONFIG_USB),)
mc-objs += mc-dev-allocator.o
endif
diff --git a/include/media/media-dev-allocator.h b/include/media/media-dev-allocator.h
index b35ea6062596..2ab54d426c64 100644
--- a/include/media/media-dev-allocator.h
+++ b/include/media/media-dev-allocator.h
@@ -19,7 +19,7 @@
struct usb_device;
-#if defined(CONFIG_MEDIA_CONTROLLER) && defined(CONFIG_USB)
+#if defined(CONFIG_MEDIA_CONTROLLER) && IS_ENABLED(CONFIG_USB)
/**
* media_device_usb_allocate() - Allocate and return struct &media device
*
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 195/700] ACPI: video: use native backlight for GA401/GA502/GA503
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` (193 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 194/700] media: Fix Media Controller API config checks Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 196/700] HID: do not use down_interruptible() when unbinding devices Greg Kroah-Hartman
` (510 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luke D. Jones, Rafael J. Wysocki,
Sasha Levin
From: Luke D Jones <luke@ljones.dev>
[ Upstream commit 2dfbacc65d1d2eae587ccb6b93f6280542641858 ]
Force backlight control in these models to use the native interface
at /sys/class/backlight/amdgpu_bl0.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/video_detect.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 83cd4c95faf0..33474fd96991 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -385,6 +385,30 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "BA51_MV"),
},
},
+ {
+ .callback = video_detect_force_native,
+ .ident = "ASUSTeK COMPUTER INC. GA401",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GA401"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "ASUSTeK COMPUTER INC. GA502",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GA502"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "ASUSTeK COMPUTER INC. GA503",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GA503"),
+ },
+ },
/*
* Desktops which falsely report a backlight and which our heuristics
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 196/700] HID: do not use down_interruptible() when unbinding devices
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (194 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 195/700] ACPI: video: use native backlight for GA401/GA502/GA503 Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 197/700] EDAC/ti: Add missing MODULE_DEVICE_TABLE Greg Kroah-Hartman
` (509 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dmitry Torokhov, Jiri Kosina, Sasha Levin
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[ Upstream commit f2145f8dc566c4f3b5a8deb58dcd12bed4e20194 ]
Action of unbinding driver from a device is not cancellable and should not
fail, and driver core does not pay attention to the result of "remove"
method, therefore using down_interruptible() in hid_device_remove() does
not make sense.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-core.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 0f69f35f2957..5550c943f985 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2306,12 +2306,8 @@ static int hid_device_remove(struct device *dev)
{
struct hid_device *hdev = to_hid_device(dev);
struct hid_driver *hdrv;
- int ret = 0;
- if (down_interruptible(&hdev->driver_input_lock)) {
- ret = -EINTR;
- goto end;
- }
+ down(&hdev->driver_input_lock);
hdev->io_started = false;
hdrv = hdev->driver;
@@ -2326,8 +2322,8 @@ static int hid_device_remove(struct device *dev)
if (!hdev->io_started)
up(&hdev->driver_input_lock);
-end:
- return ret;
+
+ return 0;
}
static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 197/700] EDAC/ti: Add missing MODULE_DEVICE_TABLE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (195 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 196/700] HID: do not use down_interruptible() when unbinding devices Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 198/700] ACPI: PM: s2idle: Add missing LPS0 functions for AMD Greg Kroah-Hartman
` (508 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Bixuan Cui,
Borislav Petkov, Tero Kristo, Sasha Levin
From: Bixuan Cui <cuibixuan@huawei.com>
[ Upstream commit 0a37f32ba5272b2d4ec8c8d0f6b212b81b578f7e ]
The module misses MODULE_DEVICE_TABLE() for of_device_id tables and thus
never autoloads on ID matches.
Add the missing declaration.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tero Kristo <kristo@kernel.org>
Link: https://lkml.kernel.org/r/20210512033727.26701-1-cuibixuan@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/edac/ti_edac.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/edac/ti_edac.c b/drivers/edac/ti_edac.c
index e7eae20f83d1..169f96e51c29 100644
--- a/drivers/edac/ti_edac.c
+++ b/drivers/edac/ti_edac.c
@@ -197,6 +197,7 @@ static const struct of_device_id ti_edac_of_match[] = {
{ .compatible = "ti,emif-dra7xx", .data = (void *)EMIF_TYPE_DRA7 },
{},
};
+MODULE_DEVICE_TABLE(of, ti_edac_of_match);
static int _emif_get_id(struct device_node *node)
{
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 198/700] ACPI: PM: s2idle: Add missing LPS0 functions for AMD
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (196 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 197/700] EDAC/ti: Add missing MODULE_DEVICE_TABLE Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 199/700] ACPI: processor idle: Fix up C-state latency if not ordered Greg Kroah-Hartman
` (507 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hans de Goede, Alex Deucher,
Rafael J. Wysocki, Sasha Levin
From: Alex Deucher <alexander.deucher@amd.com>
[ Upstream commit f59a905b962c34642e862b5edec35c0eda72d70d ]
These are supposedly not required for AMD platforms,
but at least some HP laptops seem to require it to
properly turn off the keyboard backlight.
Based on a patch from Marcin Bachry <hegel666@gmail.com>.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1230
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/x86/s2idle.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
index 2b69536cdccb..2d7ddb8a8cb6 100644
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -42,6 +42,8 @@ static const struct acpi_device_id lps0_device_ids[] = {
/* AMD */
#define ACPI_LPS0_DSM_UUID_AMD "e3f32452-febc-43ce-9039-932122d37721"
+#define ACPI_LPS0_ENTRY_AMD 2
+#define ACPI_LPS0_EXIT_AMD 3
#define ACPI_LPS0_SCREEN_OFF_AMD 4
#define ACPI_LPS0_SCREEN_ON_AMD 5
@@ -408,6 +410,7 @@ int acpi_s2idle_prepare_late(void)
if (acpi_s2idle_vendor_amd()) {
acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF_AMD);
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY_AMD);
} else {
acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF);
acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY);
@@ -422,6 +425,7 @@ void acpi_s2idle_restore_early(void)
return;
if (acpi_s2idle_vendor_amd()) {
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT_AMD);
acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON_AMD);
} else {
acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 199/700] ACPI: processor idle: Fix up C-state latency if not ordered
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (197 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 198/700] ACPI: PM: s2idle: Add missing LPS0 functions for AMD Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 200/700] hv_utils: Fix passing zero to PTR_ERR warning Greg Kroah-Hartman
` (506 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Prike Liang, Alex Deucher,
Mario Limonciello, Rafael J. Wysocki, Sasha Levin
From: Mario Limonciello <mario.limonciello@amd.com>
[ Upstream commit 65ea8f2c6e230bdf71fed0137cf9e9d1b307db32 ]
Generally, the C-state latency is provided by the _CST method or
FADT, but some OEM platforms using AMD Picasso, Renoir, Van Gogh,
and Cezanne set the C2 latency greater than C3's which causes the
C2 state to be skipped.
That will block the core entering PC6, which prevents S0ix working
properly on Linux systems.
In other operating systems, the latency values are not validated and
this does not cause problems by skipping states.
To avoid this issue on Linux, detect when latencies are not an
arithmetic progression and sort them.
Link: https://gitlab.freedesktop.org/agd5f/linux/-/commit/026d186e4592c1ee9c1cb44295912d0294508725
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1230#note_712174
Suggested-by: Prike Liang <Prike.Liang@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/processor_idle.c | 40 +++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 4e2d76b8b697..6790df5a2462 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -16,6 +16,7 @@
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/sched.h> /* need_resched() */
+#include <linux/sort.h>
#include <linux/tick.h>
#include <linux/cpuidle.h>
#include <linux/cpu.h>
@@ -388,10 +389,37 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
return;
}
+static int acpi_cst_latency_cmp(const void *a, const void *b)
+{
+ const struct acpi_processor_cx *x = a, *y = b;
+
+ if (!(x->valid && y->valid))
+ return 0;
+ if (x->latency > y->latency)
+ return 1;
+ if (x->latency < y->latency)
+ return -1;
+ return 0;
+}
+static void acpi_cst_latency_swap(void *a, void *b, int n)
+{
+ struct acpi_processor_cx *x = a, *y = b;
+ u32 tmp;
+
+ if (!(x->valid && y->valid))
+ return;
+ tmp = x->latency;
+ x->latency = y->latency;
+ y->latency = tmp;
+}
+
static int acpi_processor_power_verify(struct acpi_processor *pr)
{
unsigned int i;
unsigned int working = 0;
+ unsigned int last_latency = 0;
+ unsigned int last_type = 0;
+ bool buggy_latency = false;
pr->power.timer_broadcast_on_state = INT_MAX;
@@ -415,12 +443,24 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
}
if (!cx->valid)
continue;
+ if (cx->type >= last_type && cx->latency < last_latency)
+ buggy_latency = true;
+ last_latency = cx->latency;
+ last_type = cx->type;
lapic_timer_check_state(i, pr, cx);
tsc_check_state(cx->type);
working++;
}
+ if (buggy_latency) {
+ pr_notice("FW issue: working around C-state latencies out of order\n");
+ sort(&pr->power.states[1], max_cstate,
+ sizeof(struct acpi_processor_cx),
+ acpi_cst_latency_cmp,
+ acpi_cst_latency_swap);
+ }
+
lapic_timer_propagate_broadcast(pr);
return (working);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 200/700] hv_utils: Fix passing zero to PTR_ERR warning
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (198 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 199/700] ACPI: processor idle: Fix up C-state latency if not ordered Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 201/700] lib: vsprintf: Fix handling of number field widths in vsscanf Greg Kroah-Hartman
` (505 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, YueHaibing, Wei Liu, Sasha Levin
From: YueHaibing <yuehaibing@huawei.com>
[ Upstream commit c6a8625fa4c6b0a97860d053271660ccedc3d1b3 ]
Sparse warn this:
drivers/hv/hv_util.c:753 hv_timesync_init() warn:
passing zero to 'PTR_ERR'
Use PTR_ERR_OR_ZERO instead of PTR_ERR to fix this.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210514070116.16800-1-yuehaibing@huawei.com
[ wei: change %ld to %d ]
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hv/hv_util.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index e4aefeb330da..136576cba26f 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -750,8 +750,8 @@ static int hv_timesync_init(struct hv_util_service *srv)
*/
hv_ptp_clock = ptp_clock_register(&ptp_hyperv_info, NULL);
if (IS_ERR_OR_NULL(hv_ptp_clock)) {
- pr_err("cannot register PTP clock: %ld\n",
- PTR_ERR(hv_ptp_clock));
+ pr_err("cannot register PTP clock: %d\n",
+ PTR_ERR_OR_ZERO(hv_ptp_clock));
hv_ptp_clock = NULL;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 201/700] lib: vsprintf: Fix handling of number field widths in vsscanf
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (199 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 200/700] hv_utils: Fix passing zero to PTR_ERR warning Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 202/700] Input: goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c Greg Kroah-Hartman
` (504 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Richard Fitzgerald, Petr Mladek, Sasha Levin
From: Richard Fitzgerald <rf@opensource.cirrus.com>
[ Upstream commit 900fdc4573766dd43b847b4f54bd4a1ee2bc7360 ]
The existing code attempted to handle numbers by doing a strto[u]l(),
ignoring the field width, and then repeatedly dividing to extract the
field out of the full converted value. If the string contains a run of
valid digits longer than will fit in a long or long long, this would
overflow and no amount of dividing can recover the correct value.
This patch fixes vsscanf() to obey number field widths when parsing
the number.
A new _parse_integer_limit() is added that takes a limit for the number
of characters to parse. The number field conversion in vsscanf is changed
to use this new function.
If a number starts with a radix prefix, the field width must be long
enough for at last one digit after the prefix. If not, it will be handled
like this:
sscanf("0x4", "%1i", &i): i=0, scanning continues with the 'x'
sscanf("0x4", "%2i", &i): i=0, scanning continues with the '4'
This is consistent with the observed behaviour of userland sscanf.
Note that this patch does NOT fix the problem of a single field value
overflowing the target type. So for example:
sscanf("123456789abcdef", "%x", &i);
Will not produce the correct result because the value obviously overflows
INT_MAX. But sscanf will report a successful conversion.
Note that where a very large number is used to mean "unlimited", the value
INT_MAX is used for consistency with the behaviour of vsnprintf().
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20210514161206.30821-2-rf@opensource.cirrus.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
lib/kstrtox.c | 13 ++++++--
lib/kstrtox.h | 2 ++
lib/vsprintf.c | 82 +++++++++++++++++++++++++++++---------------------
3 files changed, 60 insertions(+), 37 deletions(-)
diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index a118b0b1e9b2..0b5fe8b41173 100644
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -39,20 +39,22 @@ const char *_parse_integer_fixup_radix(const char *s, unsigned int *base)
/*
* Convert non-negative integer string representation in explicitly given radix
- * to an integer.
+ * to an integer. A maximum of max_chars characters will be converted.
+ *
* Return number of characters consumed maybe or-ed with overflow bit.
* If overflow occurs, result integer (incorrect) is still returned.
*
* Don't you dare use this function.
*/
-unsigned int _parse_integer(const char *s, unsigned int base, unsigned long long *p)
+unsigned int _parse_integer_limit(const char *s, unsigned int base, unsigned long long *p,
+ size_t max_chars)
{
unsigned long long res;
unsigned int rv;
res = 0;
rv = 0;
- while (1) {
+ while (max_chars--) {
unsigned int c = *s;
unsigned int lc = c | 0x20; /* don't tolower() this line */
unsigned int val;
@@ -82,6 +84,11 @@ unsigned int _parse_integer(const char *s, unsigned int base, unsigned long long
return rv;
}
+unsigned int _parse_integer(const char *s, unsigned int base, unsigned long long *p)
+{
+ return _parse_integer_limit(s, base, p, INT_MAX);
+}
+
static int _kstrtoull(const char *s, unsigned int base, unsigned long long *res)
{
unsigned long long _res;
diff --git a/lib/kstrtox.h b/lib/kstrtox.h
index 3b4637bcd254..158c400ca865 100644
--- a/lib/kstrtox.h
+++ b/lib/kstrtox.h
@@ -4,6 +4,8 @@
#define KSTRTOX_OVERFLOW (1U << 31)
const char *_parse_integer_fixup_radix(const char *s, unsigned int *base);
+unsigned int _parse_integer_limit(const char *s, unsigned int base, unsigned long long *res,
+ size_t max_chars);
unsigned int _parse_integer(const char *s, unsigned int base, unsigned long long *res);
#endif
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 39ef2e314da5..9d6722199390 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -53,6 +53,31 @@
#include <linux/string_helpers.h>
#include "kstrtox.h"
+static unsigned long long simple_strntoull(const char *startp, size_t max_chars,
+ char **endp, unsigned int base)
+{
+ const char *cp;
+ unsigned long long result = 0ULL;
+ size_t prefix_chars;
+ unsigned int rv;
+
+ cp = _parse_integer_fixup_radix(startp, &base);
+ prefix_chars = cp - startp;
+ if (prefix_chars < max_chars) {
+ rv = _parse_integer_limit(cp, base, &result, max_chars - prefix_chars);
+ /* FIXME */
+ cp += (rv & ~KSTRTOX_OVERFLOW);
+ } else {
+ /* Field too short for prefix + digit, skip over without converting */
+ cp = startp + max_chars;
+ }
+
+ if (endp)
+ *endp = (char *)cp;
+
+ return result;
+}
+
/**
* simple_strtoull - convert a string to an unsigned long long
* @cp: The start of the string
@@ -63,18 +88,7 @@
*/
unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base)
{
- unsigned long long result;
- unsigned int rv;
-
- cp = _parse_integer_fixup_radix(cp, &base);
- rv = _parse_integer(cp, base, &result);
- /* FIXME */
- cp += (rv & ~KSTRTOX_OVERFLOW);
-
- if (endp)
- *endp = (char *)cp;
-
- return result;
+ return simple_strntoull(cp, INT_MAX, endp, base);
}
EXPORT_SYMBOL(simple_strtoull);
@@ -109,6 +123,21 @@ long simple_strtol(const char *cp, char **endp, unsigned int base)
}
EXPORT_SYMBOL(simple_strtol);
+static long long simple_strntoll(const char *cp, size_t max_chars, char **endp,
+ unsigned int base)
+{
+ /*
+ * simple_strntoull() safely handles receiving max_chars==0 in the
+ * case cp[0] == '-' && max_chars == 1.
+ * If max_chars == 0 we can drop through and pass it to simple_strntoull()
+ * and the content of *cp is irrelevant.
+ */
+ if (*cp == '-' && max_chars > 0)
+ return -simple_strntoull(cp + 1, max_chars - 1, endp, base);
+
+ return simple_strntoull(cp, max_chars, endp, base);
+}
+
/**
* simple_strtoll - convert a string to a signed long long
* @cp: The start of the string
@@ -119,10 +148,7 @@ EXPORT_SYMBOL(simple_strtol);
*/
long long simple_strtoll(const char *cp, char **endp, unsigned int base)
{
- if (*cp == '-')
- return -simple_strtoull(cp + 1, endp, base);
-
- return simple_strtoull(cp, endp, base);
+ return simple_strntoll(cp, INT_MAX, endp, base);
}
EXPORT_SYMBOL(simple_strtoll);
@@ -3475,25 +3501,13 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
break;
if (is_sign)
- val.s = qualifier != 'L' ?
- simple_strtol(str, &next, base) :
- simple_strtoll(str, &next, base);
+ val.s = simple_strntoll(str,
+ field_width >= 0 ? field_width : INT_MAX,
+ &next, base);
else
- val.u = qualifier != 'L' ?
- simple_strtoul(str, &next, base) :
- simple_strtoull(str, &next, base);
-
- if (field_width > 0 && next - str > field_width) {
- if (base == 0)
- _parse_integer_fixup_radix(str, &base);
- while (next - str > field_width) {
- if (is_sign)
- val.s = div_s64(val.s, base);
- else
- val.u = div_u64(val.u, base);
- --next;
- }
- }
+ val.u = simple_strntoull(str,
+ field_width >= 0 ? field_width : INT_MAX,
+ &next, base);
switch (qualifier) {
case 'H': /* that's 'hh' in format */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 202/700] Input: goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (200 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 201/700] lib: vsprintf: Fix handling of number field widths in vsscanf Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 203/700] platform/x86: touchscreen_dmi: Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hans de Goede, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit 5a6f0dbe621a5c20dc912ac474debf9f11129e03 ]
Move the DMI quirks for upside-down mounted Goodix touchscreens from
drivers/input/touchscreen/goodix.c to
drivers/platform/x86/touchscreen_dmi.c,
where all the other x86 touchscreen quirks live.
Note the touchscreen_dmi.c code attaches standard touchscreen
device-properties to an i2c-client device based on a combination of a
DMI match + a device-name match. I've verified that the: Teclast X98 Pro,
WinBook TW100 and WinBook TW700 uses an ACPI devicename of "GDIX1001:00"
based on acpidumps and/or dmesg output available on the web.
This patch was tested on a Teclast X89 tablet.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210504185746.175461-2-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/input/touchscreen/goodix.c | 52 ------------------------
drivers/platform/x86/touchscreen_dmi.c | 56 ++++++++++++++++++++++++++
2 files changed, 56 insertions(+), 52 deletions(-)
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index c682b028f0a2..4f53d3c57e69 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -178,51 +178,6 @@ static const unsigned long goodix_irq_flags[] = {
IRQ_TYPE_LEVEL_HIGH,
};
-/*
- * Those tablets have their coordinates origin at the bottom right
- * of the tablet, as if rotated 180 degrees
- */
-static const struct dmi_system_id rotated_screen[] = {
-#if defined(CONFIG_DMI) && defined(CONFIG_X86)
- {
- .ident = "Teclast X89",
- .matches = {
- /* tPAD is too generic, also match on bios date */
- DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
- DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
- DMI_MATCH(DMI_BIOS_DATE, "12/19/2014"),
- },
- },
- {
- .ident = "Teclast X98 Pro",
- .matches = {
- /*
- * Only match BIOS date, because the manufacturers
- * BIOS does not report the board name at all
- * (sometimes)...
- */
- DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
- DMI_MATCH(DMI_BIOS_DATE, "10/28/2015"),
- },
- },
- {
- .ident = "WinBook TW100",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
- }
- },
- {
- .ident = "WinBook TW700",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
- DMI_MATCH(DMI_PRODUCT_NAME, "TW700")
- },
- },
-#endif
- {}
-};
-
static const struct dmi_system_id nine_bytes_report[] = {
#if defined(CONFIG_DMI) && defined(CONFIG_X86)
{
@@ -1123,13 +1078,6 @@ static int goodix_configure_dev(struct goodix_ts_data *ts)
ABS_MT_POSITION_Y, ts->prop.max_y);
}
- if (dmi_check_system(rotated_screen)) {
- ts->prop.invert_x = true;
- ts->prop.invert_y = true;
- dev_dbg(&ts->client->dev,
- "Applying '180 degrees rotated screen' quirk\n");
- }
-
if (dmi_check_system(nine_bytes_report)) {
ts->contact_size = 9;
diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 8618c44106c2..222f6c9f0b45 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -299,6 +299,23 @@ static const struct ts_dmi_data estar_beauty_hd_data = {
.properties = estar_beauty_hd_props,
};
+/* Generic props + data for upside-down mounted GDIX1001 touchscreens */
+static const struct property_entry gdix1001_upside_down_props[] = {
+ PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
+ PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
+ { }
+};
+
+static const struct ts_dmi_data gdix1001_00_upside_down_data = {
+ .acpi_name = "GDIX1001:00",
+ .properties = gdix1001_upside_down_props,
+};
+
+static const struct ts_dmi_data gdix1001_01_upside_down_data = {
+ .acpi_name = "GDIX1001:01",
+ .properties = gdix1001_upside_down_props,
+};
+
static const struct property_entry gp_electronic_t701_props[] = {
PROPERTY_ENTRY_U32("touchscreen-size-x", 960),
PROPERTY_ENTRY_U32("touchscreen-size-y", 640),
@@ -1295,6 +1312,16 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "X3 Plus"),
},
},
+ {
+ /* Teclast X89 (Windows version / BIOS) */
+ .driver_data = (void *)&gdix1001_01_upside_down_data,
+ .matches = {
+ /* tPAD is too generic, also match on bios date */
+ DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
+ DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
+ DMI_MATCH(DMI_BIOS_DATE, "12/19/2014"),
+ },
+ },
{
/* Teclast X98 Plus II */
.driver_data = (void *)&teclast_x98plus2_data,
@@ -1303,6 +1330,19 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"),
},
},
+ {
+ /* Teclast X98 Pro */
+ .driver_data = (void *)&gdix1001_00_upside_down_data,
+ .matches = {
+ /*
+ * Only match BIOS date, because the manufacturers
+ * BIOS does not report the board name at all
+ * (sometimes)...
+ */
+ DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
+ DMI_MATCH(DMI_BIOS_DATE, "10/28/2015"),
+ },
+ },
{
/* Trekstor Primebook C11 */
.driver_data = (void *)&trekstor_primebook_c11_data,
@@ -1378,6 +1418,22 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "VINGA Twizzle J116"),
},
},
+ {
+ /* "WinBook TW100" */
+ .driver_data = (void *)&gdix1001_00_upside_down_data,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TW100")
+ }
+ },
+ {
+ /* WinBook TW700 */
+ .driver_data = (void *)&gdix1001_00_upside_down_data,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "WinBook"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TW700")
+ },
+ },
{
/* Yours Y8W81, same case and touchscreen as Chuwi Vi8 */
.driver_data = (void *)&chuwi_vi8_data,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 203/700] platform/x86: touchscreen_dmi: Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (201 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 202/700] Input: goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 204/700] platform/x86: touchscreen_dmi: Add info for the Goodix GT912 panel of TM800A550L tablets Greg Kroah-Hartman
` (502 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Hans de Goede, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit a22e3803f2a4d947ff0083a9448a169269ea0f62 ]
Teclast X89 tablets come in 2 versions, with Windows pre-installed and with
Android pre-installed. These 2 versions have different DMI strings.
Add a match for the DMI strings used by the Android version BIOS.
Note the Android version BIOS has a bug in the DSDT where no IRQ is
provided, so for the touchscreen to work a DSDT override fixing this
is necessary as well.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210504185746.175461-4-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/touchscreen_dmi.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 222f6c9f0b45..bbd8d80230cd 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -1312,6 +1312,14 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "X3 Plus"),
},
},
+ {
+ /* Teclast X89 (Android version / BIOS) */
+ .driver_data = (void *)&gdix1001_00_upside_down_data,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "WISKY"),
+ DMI_MATCH(DMI_BOARD_NAME, "3G062i"),
+ },
+ },
{
/* Teclast X89 (Windows version / BIOS) */
.driver_data = (void *)&gdix1001_01_upside_down_data,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 204/700] platform/x86: touchscreen_dmi: Add info for the Goodix GT912 panel of TM800A550L tablets
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (202 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 203/700] platform/x86: touchscreen_dmi: Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 205/700] ACPI: EC: Make more Asus laptops use ECDT _GPE Greg Kroah-Hartman
` (501 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bastien Nocera, Hans de Goede, Sasha Levin
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit fcd8cf0e3e48f4c66af82c8e799c37cb0cccffe0 ]
The Bay Trail Glavey TM800A550L tablet, which ships with Android installed
from the factory, uses a GT912 touchscreen controller which needs to have
its firmware uploaded by the OS to work (this is a first for a x86 based
device with a Goodix touchscreen controller).
Add a touchscreen_dmi entry for this which specifies the filenames
to use for the firmware and config files needed for this.
Note this matches on a GDIX1001 ACPI HID, while the original DSDT uses
a HID of GODX0911. For the touchscreen to work on these devices a DSDT
override is necessary to fix a missing IRQ and broken GPIO settings in
the ACPI-resources for the touchscreen. This override also changes the
HID to the standard GDIX1001 id typically used for Goodix touchscreens.
The DSDT override is available here:
https://fedorapeople.org/~jwrdegoede/glavey-tm800a550l-dsdt-override/
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210504185746.175461-5-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/touchscreen_dmi.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index bbd8d80230cd..b47f6821615e 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -316,6 +316,18 @@ static const struct ts_dmi_data gdix1001_01_upside_down_data = {
.properties = gdix1001_upside_down_props,
};
+static const struct property_entry glavey_tm800a550l_props[] = {
+ PROPERTY_ENTRY_STRING("firmware-name", "gt912-glavey-tm800a550l.fw"),
+ PROPERTY_ENTRY_STRING("goodix,config-name", "gt912-glavey-tm800a550l.cfg"),
+ PROPERTY_ENTRY_U32("goodix,main-clk", 54),
+ { }
+};
+
+static const struct ts_dmi_data glavey_tm800a550l_data = {
+ .acpi_name = "GDIX1001:00",
+ .properties = glavey_tm800a550l_props,
+};
+
static const struct property_entry gp_electronic_t701_props[] = {
PROPERTY_ENTRY_U32("touchscreen-size-x", 960),
PROPERTY_ENTRY_U32("touchscreen-size-y", 640),
@@ -1029,6 +1041,15 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "eSTAR BEAUTY HD Intel Quad core"),
},
},
+ { /* Glavey TM800A550L */
+ .driver_data = (void *)&glavey_tm800a550l_data,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+ /* Above strings are too generic, also match on BIOS version */
+ DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
+ },
+ },
{
/* GP-electronic T701 */
.driver_data = (void *)&gp_electronic_t701_data,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 205/700] ACPI: EC: Make more Asus laptops use ECDT _GPE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (203 preceding siblings ...)
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@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 206/700] block_dump: remove block_dump feature in mark_inode_dirty() Greg Kroah-Hartman
` (500 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chris Chiu, Jian-Hong Pan,
Rafael J. Wysocki, Sasha Levin
From: Chris Chiu <chris.chiu@canonical.com>
[ Upstream commit 6306f0431914beaf220634ad36c08234006571d5 ]
More ASUS laptops have the _GPE define in the DSDT table with a
different value than the _GPE number in the ECDT.
This is causing media keys not working on ASUS X505BA/BP, X542BA/BP
Add model info to the quirks list.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/ec.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 13565629ce0a..e8c5da2b964a 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1846,6 +1846,22 @@ static const struct dmi_system_id ec_dmi_table[] __initconst = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GL702VMK"),}, NULL},
{
+ ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X505BA", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X505BA"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X505BP", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X505BP"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X542BA", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X542BA"),}, NULL},
+ {
+ ec_honor_ecdt_gpe, "ASUSTeK COMPUTER INC. X542BP", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X542BP"),}, NULL},
+ {
ec_honor_ecdt_gpe, "ASUS X550VXK", {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "X550VXK"),}, NULL},
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 206/700] block_dump: remove block_dump feature in mark_inode_dirty()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (204 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 205/700] ACPI: EC: Make more Asus laptops use ECDT _GPE Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 207/700] blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter Greg Kroah-Hartman
` (499 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, zhangyi (F),
Jan Kara, Christoph Hellwig, Jens Axboe, Sasha Levin
From: zhangyi (F) <yi.zhang@huawei.com>
[ Upstream commit 12e0613715e1cf305fffafaf0e89d810d9a85cc0 ]
block_dump is an old debugging interface, one of it's functions is used
to print the information about who write which file on disk. If we
enable block_dump through /proc/sys/vm/block_dump and turn on debug log
level, we can gather information about write process name, target file
name and disk from kernel message. This feature is realized in
block_dump___mark_inode_dirty(), it print above information into kernel
message directly when marking inode dirty, so it is noisy and can easily
trigger log storm. At the same time, get the dentry refcount is also not
safe, we found it will lead to deadlock on ext4 file system with
data=journal mode.
After tracepoints has been introduced into the kernel, we got a
tracepoint in __mark_inode_dirty(), which is a better replacement of
block_dump___mark_inode_dirty(). The only downside is that it only trace
the inode number and not a file name, but it probably doesn't matter
because the original printed file name in block_dump is not accurate in
some cases, and we can still find it through the inode number and device
id. So this patch delete the dirting inode part of block_dump feature.
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210313030146.2882027-2-yi.zhang@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/fs-writeback.c | 25 -------------------------
1 file changed, 25 deletions(-)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e91980f49388..7c46d1588a19 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2205,28 +2205,6 @@ int dirtytime_interval_handler(struct ctl_table *table, int write,
return ret;
}
-static noinline void block_dump___mark_inode_dirty(struct inode *inode)
-{
- if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) {
- struct dentry *dentry;
- const char *name = "?";
-
- dentry = d_find_alias(inode);
- if (dentry) {
- spin_lock(&dentry->d_lock);
- name = (const char *) dentry->d_name.name;
- }
- printk(KERN_DEBUG
- "%s(%d): dirtied inode %lu (%s) on %s\n",
- current->comm, task_pid_nr(current), inode->i_ino,
- name, inode->i_sb->s_id);
- if (dentry) {
- spin_unlock(&dentry->d_lock);
- dput(dentry);
- }
- }
-}
-
/**
* __mark_inode_dirty - internal function to mark an inode dirty
*
@@ -2296,9 +2274,6 @@ void __mark_inode_dirty(struct inode *inode, int flags)
(dirtytime && (inode->i_state & I_DIRTY_INODE)))
return;
- if (unlikely(block_dump))
- block_dump___mark_inode_dirty(inode);
-
spin_lock(&inode->i_lock);
if (dirtytime && (inode->i_state & I_DIRTY_INODE))
goto out_unlock_inode;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 207/700] blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (205 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 206/700] block_dump: remove block_dump feature in mark_inode_dirty() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 208/700] blk-mq: clear stale request in tags->rq[] before freeing one request pool Greg Kroah-Hartman
` (498 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, John Garry, Christoph Hellwig,
Bart Van Assche, Ming Lei, Jens Axboe, Sasha Levin
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit 2e315dc07df009c3e29d6926871f62a30cfae394 ]
Grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter(), and
this way will prevent the request from being re-used when ->fn is
running. The approach is same as what we do during handling timeout.
Fix request use-after-free(UAF) related with completion race or queue
releasing:
- If one rq is referred before rq->q is frozen, then queue won't be
frozen before the request is released during iteration.
- If one rq is referred after rq->q is frozen, refcount_inc_not_zero()
will return false, and we won't iterate over this request.
However, still one request UAF not covered: refcount_inc_not_zero() may
read one freed request, and it will be handled in next patch.
Tested-by: John Garry <john.garry@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210511152236.763464-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-mq-tag.c | 44 +++++++++++++++++++++++++++++++++-----------
block/blk-mq.c | 14 +++++++++-----
block/blk-mq.h | 1 +
3 files changed, 43 insertions(+), 16 deletions(-)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 9c92053e704d..6772c3728865 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -199,6 +199,16 @@ struct bt_iter_data {
bool reserved;
};
+static struct request *blk_mq_find_and_get_req(struct blk_mq_tags *tags,
+ unsigned int bitnr)
+{
+ struct request *rq = tags->rqs[bitnr];
+
+ if (!rq || !refcount_inc_not_zero(&rq->ref))
+ return NULL;
+ return rq;
+}
+
static bool bt_iter(struct sbitmap *bitmap, unsigned int bitnr, void *data)
{
struct bt_iter_data *iter_data = data;
@@ -206,18 +216,22 @@ static bool bt_iter(struct sbitmap *bitmap, unsigned int bitnr, void *data)
struct blk_mq_tags *tags = hctx->tags;
bool reserved = iter_data->reserved;
struct request *rq;
+ bool ret = true;
if (!reserved)
bitnr += tags->nr_reserved_tags;
- rq = tags->rqs[bitnr];
-
/*
* We can hit rq == NULL here, because the tagging functions
* test and set the bit before assigning ->rqs[].
*/
- if (rq && rq->q == hctx->queue && rq->mq_hctx == hctx)
- return iter_data->fn(hctx, rq, iter_data->data, reserved);
- return true;
+ rq = blk_mq_find_and_get_req(tags, bitnr);
+ if (!rq)
+ return true;
+
+ if (rq->q == hctx->queue && rq->mq_hctx == hctx)
+ ret = iter_data->fn(hctx, rq, iter_data->data, reserved);
+ blk_mq_put_rq_ref(rq);
+ return ret;
}
/**
@@ -264,6 +278,8 @@ static bool bt_tags_iter(struct sbitmap *bitmap, unsigned int bitnr, void *data)
struct blk_mq_tags *tags = iter_data->tags;
bool reserved = iter_data->flags & BT_TAG_ITER_RESERVED;
struct request *rq;
+ bool ret = true;
+ bool iter_static_rqs = !!(iter_data->flags & BT_TAG_ITER_STATIC_RQS);
if (!reserved)
bitnr += tags->nr_reserved_tags;
@@ -272,16 +288,19 @@ static bool bt_tags_iter(struct sbitmap *bitmap, unsigned int bitnr, void *data)
* We can hit rq == NULL here, because the tagging functions
* test and set the bit before assigning ->rqs[].
*/
- if (iter_data->flags & BT_TAG_ITER_STATIC_RQS)
+ if (iter_static_rqs)
rq = tags->static_rqs[bitnr];
else
- rq = tags->rqs[bitnr];
+ rq = blk_mq_find_and_get_req(tags, bitnr);
if (!rq)
return true;
- if ((iter_data->flags & BT_TAG_ITER_STARTED) &&
- !blk_mq_request_started(rq))
- return true;
- return iter_data->fn(rq, iter_data->data, reserved);
+
+ if (!(iter_data->flags & BT_TAG_ITER_STARTED) ||
+ blk_mq_request_started(rq))
+ ret = iter_data->fn(rq, iter_data->data, reserved);
+ if (!iter_static_rqs)
+ blk_mq_put_rq_ref(rq);
+ return ret;
}
/**
@@ -348,6 +367,9 @@ void blk_mq_all_tag_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
* indicates whether or not @rq is a reserved request. Return
* true to continue iterating tags, false to stop.
* @priv: Will be passed as second argument to @fn.
+ *
+ * We grab one request reference before calling @fn and release it after
+ * @fn returns.
*/
void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset,
busy_tag_iter_fn *fn, void *priv)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 0e120547ccb7..d5370ab2eb31 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -908,6 +908,14 @@ static bool blk_mq_req_expired(struct request *rq, unsigned long *next)
return false;
}
+void blk_mq_put_rq_ref(struct request *rq)
+{
+ if (is_flush_rq(rq, rq->mq_hctx))
+ rq->end_io(rq, 0);
+ else if (refcount_dec_and_test(&rq->ref))
+ __blk_mq_free_request(rq);
+}
+
static bool blk_mq_check_expired(struct blk_mq_hw_ctx *hctx,
struct request *rq, void *priv, bool reserved)
{
@@ -941,11 +949,7 @@ static bool blk_mq_check_expired(struct blk_mq_hw_ctx *hctx,
if (blk_mq_req_expired(rq, next))
blk_mq_rq_timed_out(rq, reserved);
- if (is_flush_rq(rq, hctx))
- rq->end_io(rq, 0);
- else if (refcount_dec_and_test(&rq->ref))
- __blk_mq_free_request(rq);
-
+ blk_mq_put_rq_ref(rq);
return true;
}
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 3616453ca28c..143afe42c63a 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -47,6 +47,7 @@ void blk_mq_add_to_requeue_list(struct request *rq, bool at_head,
void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list);
struct request *blk_mq_dequeue_from_ctx(struct blk_mq_hw_ctx *hctx,
struct blk_mq_ctx *start);
+void blk_mq_put_rq_ref(struct request *rq);
/*
* Internal helpers for allocating/freeing the request map
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 208/700] blk-mq: clear stale request in tags->rq[] before freeing one request pool
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (206 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 207/700] blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 209/700] fs: dlm: reconnect if socket error report occurs Greg Kroah-Hartman
` (497 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, John Garry, David Jeffery,
Bart Van Assche, Ming Lei, Jens Axboe, Sasha Levin
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit bd63141d585bef14f4caf111f6d0e27fe2300ec6 ]
refcount_inc_not_zero() in bt_tags_iter() still may read one freed
request.
Fix the issue by the following approach:
1) hold a per-tags spinlock when reading ->rqs[tag] and calling
refcount_inc_not_zero in bt_tags_iter()
2) clearing stale request referred via ->rqs[tag] before freeing
request pool, the per-tags spinlock is held for clearing stale
->rq[tag]
So after we cleared stale requests, bt_tags_iter() won't observe
freed request any more, also the clearing will wait for pending
request reference.
The idea of clearing ->rqs[] is borrowed from John Garry's previous
patch and one recent David's patch.
Tested-by: John Garry <john.garry@huawei.com>
Reviewed-by: David Jeffery <djeffery@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210511152236.763464-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-mq-tag.c | 9 +++++++--
block/blk-mq-tag.h | 6 ++++++
block/blk-mq.c | 46 +++++++++++++++++++++++++++++++++++++++++-----
3 files changed, 54 insertions(+), 7 deletions(-)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 6772c3728865..c4f2f6c123ae 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -202,10 +202,14 @@ struct bt_iter_data {
static struct request *blk_mq_find_and_get_req(struct blk_mq_tags *tags,
unsigned int bitnr)
{
- struct request *rq = tags->rqs[bitnr];
+ struct request *rq;
+ unsigned long flags;
+ spin_lock_irqsave(&tags->lock, flags);
+ rq = tags->rqs[bitnr];
if (!rq || !refcount_inc_not_zero(&rq->ref))
- return NULL;
+ rq = NULL;
+ spin_unlock_irqrestore(&tags->lock, flags);
return rq;
}
@@ -538,6 +542,7 @@ struct blk_mq_tags *blk_mq_init_tags(unsigned int total_tags,
tags->nr_tags = total_tags;
tags->nr_reserved_tags = reserved_tags;
+ spin_lock_init(&tags->lock);
if (flags & BLK_MQ_F_TAG_HCTX_SHARED)
return tags;
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 7d3e6b333a4a..f887988e5ef6 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -20,6 +20,12 @@ struct blk_mq_tags {
struct request **rqs;
struct request **static_rqs;
struct list_head page_list;
+
+ /*
+ * used to clear request reference in rqs[] before freeing one
+ * request pool
+ */
+ spinlock_t lock;
};
extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags,
diff --git a/block/blk-mq.c b/block/blk-mq.c
index d5370ab2eb31..d06ff908f3d9 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2291,6 +2291,45 @@ queue_exit:
return BLK_QC_T_NONE;
}
+static size_t order_to_size(unsigned int order)
+{
+ return (size_t)PAGE_SIZE << order;
+}
+
+/* called before freeing request pool in @tags */
+static void blk_mq_clear_rq_mapping(struct blk_mq_tag_set *set,
+ struct blk_mq_tags *tags, unsigned int hctx_idx)
+{
+ struct blk_mq_tags *drv_tags = set->tags[hctx_idx];
+ struct page *page;
+ unsigned long flags;
+
+ list_for_each_entry(page, &tags->page_list, lru) {
+ unsigned long start = (unsigned long)page_address(page);
+ unsigned long end = start + order_to_size(page->private);
+ int i;
+
+ for (i = 0; i < set->queue_depth; i++) {
+ struct request *rq = drv_tags->rqs[i];
+ unsigned long rq_addr = (unsigned long)rq;
+
+ if (rq_addr >= start && rq_addr < end) {
+ WARN_ON_ONCE(refcount_read(&rq->ref) != 0);
+ cmpxchg(&drv_tags->rqs[i], rq, NULL);
+ }
+ }
+ }
+
+ /*
+ * Wait until all pending iteration is done.
+ *
+ * Request reference is cleared and it is guaranteed to be observed
+ * after the ->lock is released.
+ */
+ spin_lock_irqsave(&drv_tags->lock, flags);
+ spin_unlock_irqrestore(&drv_tags->lock, flags);
+}
+
void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
unsigned int hctx_idx)
{
@@ -2309,6 +2348,8 @@ void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
}
}
+ blk_mq_clear_rq_mapping(set, tags, hctx_idx);
+
while (!list_empty(&tags->page_list)) {
page = list_first_entry(&tags->page_list, struct page, lru);
list_del_init(&page->lru);
@@ -2368,11 +2409,6 @@ struct blk_mq_tags *blk_mq_alloc_rq_map(struct blk_mq_tag_set *set,
return tags;
}
-static size_t order_to_size(unsigned int order)
-{
- return (size_t)PAGE_SIZE << order;
-}
-
static int blk_mq_init_request(struct blk_mq_tag_set *set, struct request *rq,
unsigned int hctx_idx, int node)
{
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 209/700] fs: dlm: reconnect if socket error report occurs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (207 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 208/700] blk-mq: clear stale request in tags->rq[] before freeing one request pool Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 210/700] fs: dlm: cancel work sync othercon Greg Kroah-Hartman
` (496 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland, Sasha Levin
From: Alexander Aring <aahringo@redhat.com>
[ Upstream commit ba868d9deaab2bb1c09e50650127823925154802 ]
This patch will change the reconnect handling that if an error occurs
if a socket error callback is occurred. This will also handle reconnects
in a non blocking connecting case which is currently missing. If error
ECONNREFUSED is reported we delay the reconnect by one second.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dlm/lowcomms.c | 60 ++++++++++++++++++++++++++++++-----------------
1 file changed, 39 insertions(+), 21 deletions(-)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 45c2fdaf34c4..01b672cee783 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -79,6 +79,8 @@ struct connection {
#define CF_CLOSING 8
#define CF_SHUTDOWN 9
#define CF_CONNECTED 10
+#define CF_RECONNECT 11
+#define CF_DELAY_CONNECT 12
struct list_head writequeue; /* List of outgoing writequeue_entries */
spinlock_t writequeue_lock;
void (*connect_action) (struct connection *); /* What to do to connect */
@@ -87,6 +89,7 @@ struct connection {
#define MAX_CONNECT_RETRIES 3
struct hlist_node list;
struct connection *othercon;
+ struct connection *sendcon;
struct work_struct rwork; /* Receive workqueue */
struct work_struct swork; /* Send workqueue */
wait_queue_head_t shutdown_wait; /* wait for graceful shutdown */
@@ -584,6 +587,22 @@ static void lowcomms_error_report(struct sock *sk)
dlm_config.ci_tcp_port, sk->sk_err,
sk->sk_err_soft);
}
+
+ /* below sendcon only handling */
+ if (test_bit(CF_IS_OTHERCON, &con->flags))
+ con = con->sendcon;
+
+ switch (sk->sk_err) {
+ case ECONNREFUSED:
+ set_bit(CF_DELAY_CONNECT, &con->flags);
+ break;
+ default:
+ break;
+ }
+
+ if (!test_and_set_bit(CF_RECONNECT, &con->flags))
+ queue_work(send_workqueue, &con->swork);
+
out:
read_unlock_bh(&sk->sk_callback_lock);
if (orig_report)
@@ -701,6 +720,8 @@ static void close_connection(struct connection *con, bool and_other,
con->rx_leftover = 0;
con->retries = 0;
clear_bit(CF_CONNECTED, &con->flags);
+ clear_bit(CF_DELAY_CONNECT, &con->flags);
+ clear_bit(CF_RECONNECT, &con->flags);
mutex_unlock(&con->sock_mutex);
clear_bit(CF_CLOSING, &con->flags);
}
@@ -839,18 +860,15 @@ out_resched:
out_close:
mutex_unlock(&con->sock_mutex);
- if (ret != -EAGAIN) {
- /* Reconnect when there is something to send */
+ if (ret == 0) {
close_connection(con, false, true, false);
- if (ret == 0) {
- log_print("connection %p got EOF from %d",
- con, con->nodeid);
- /* handling for tcp shutdown */
- clear_bit(CF_SHUTDOWN, &con->flags);
- wake_up(&con->shutdown_wait);
- /* signal to breaking receive worker */
- ret = -1;
- }
+ log_print("connection %p got EOF from %d",
+ con, con->nodeid);
+ /* handling for tcp shutdown */
+ clear_bit(CF_SHUTDOWN, &con->flags);
+ wake_up(&con->shutdown_wait);
+ /* signal to breaking receive worker */
+ ret = -1;
}
return ret;
}
@@ -933,6 +951,7 @@ static int accept_from_sock(struct listen_connection *con)
}
newcon->othercon = othercon;
+ othercon->sendcon = newcon;
} else {
/* close other sock con if we have something new */
close_connection(othercon, false, true, false);
@@ -1478,7 +1497,7 @@ static void send_to_sock(struct connection *con)
cond_resched();
goto out;
} else if (ret < 0)
- goto send_error;
+ goto out;
}
/* Don't starve people filling buffers */
@@ -1495,14 +1514,6 @@ out:
mutex_unlock(&con->sock_mutex);
return;
-send_error:
- mutex_unlock(&con->sock_mutex);
- close_connection(con, false, false, true);
- /* Requeue the send work. When the work daemon runs again, it will try
- a new connection, then call this function again. */
- queue_work(send_workqueue, &con->swork);
- return;
-
out_connect:
mutex_unlock(&con->sock_mutex);
queue_work(send_workqueue, &con->swork);
@@ -1574,8 +1585,15 @@ static void process_send_sockets(struct work_struct *work)
struct connection *con = container_of(work, struct connection, swork);
clear_bit(CF_WRITE_PENDING, &con->flags);
- if (con->sock == NULL) /* not mutex protected so check it inside too */
+
+ if (test_and_clear_bit(CF_RECONNECT, &con->flags))
+ close_connection(con, false, false, true);
+
+ if (con->sock == NULL) { /* not mutex protected so check it inside too */
+ if (test_and_clear_bit(CF_DELAY_CONNECT, &con->flags))
+ msleep(1000);
con->connect_action(con);
+ }
if (!list_empty(&con->writequeue))
send_to_sock(con);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 210/700] fs: dlm: cancel work sync othercon
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (208 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 209/700] fs: dlm: reconnect if socket error report occurs Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 211/700] random32: Fix implicit truncation warning in prandom_seed_state() Greg Kroah-Hartman
` (495 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland, Sasha Levin
From: Alexander Aring <aahringo@redhat.com>
[ Upstream commit c6aa00e3d20c2767ba3f57b64eb862572b9744b3 ]
These rx tx flags arguments are for signaling close_connection() from
which worker they are called. Obviously the receive worker cannot cancel
itself and vice versa for swork. For the othercon the receive worker
should only be used, however to avoid deadlocks we should pass the same
flags as the original close_connection() was called.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dlm/lowcomms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 01b672cee783..7e6736c70e11 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -714,7 +714,7 @@ static void close_connection(struct connection *con, bool and_other,
if (con->othercon && and_other) {
/* Will only re-enter once. */
- close_connection(con->othercon, false, true, true);
+ close_connection(con->othercon, false, tx, rx);
}
con->rx_leftover = 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 211/700] random32: Fix implicit truncation warning in prandom_seed_state()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (209 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 210/700] fs: dlm: cancel work sync othercon Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 212/700] open: dont silently ignore unknown O-flags in openat2() Greg Kroah-Hartman
` (494 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot,
Richard Fitzgerald, Petr Mladek, Sasha Levin
From: Richard Fitzgerald <rf@opensource.cirrus.com>
[ Upstream commit d327ea15a305024ef0085252fa3657bbb1ce25f5 ]
sparse generates the following warning:
include/linux/prandom.h:114:45: sparse: sparse: cast truncates bits from
constant value
This is because the 64-bit seed value is manipulated and then placed in a
u32, causing an implicit cast and truncation. A forced cast to u32 doesn't
prevent this warning, which is reasonable because a typecast doesn't prove
that truncation was expected.
Logical-AND the value with 0xffffffff to make explicit that truncation to
32-bit is intended.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20210525122012.6336-3-rf@opensource.cirrus.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/prandom.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/prandom.h b/include/linux/prandom.h
index bbf4b4ad61df..056d31317e49 100644
--- a/include/linux/prandom.h
+++ b/include/linux/prandom.h
@@ -111,7 +111,7 @@ static inline u32 __seed(u32 x, u32 m)
*/
static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
{
- u32 i = (seed >> 32) ^ (seed << 10) ^ seed;
+ u32 i = ((seed >> 32) ^ (seed << 10) ^ seed) & 0xffffffffUL;
state->s1 = __seed(i, 2U);
state->s2 = __seed(i, 8U);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 212/700] open: dont silently ignore unknown O-flags in openat2()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (210 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 211/700] random32: Fix implicit truncation warning in prandom_seed_state() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 213/700] drivers: hv: Fix missing error code in vmbus_connect() Greg Kroah-Hartman
` (493 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christoph Hellwig, Aleksa Sarai,
Al Viro, linux-fsdevel, Richard Guy Briggs, Christian Brauner,
Sasha Levin
From: Christian Brauner <christian.brauner@ubuntu.com>
[ Upstream commit cfe80306a0dd6d363934913e47c3f30d71b721e5 ]
The new openat2() syscall verifies that no unknown O-flag values are
set and returns an error to userspace if they are while the older open
syscalls like open() and openat() simply ignore unknown flag values:
#define O_FLAG_CURRENTLY_INVALID (1 << 31)
struct open_how how = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID,
.resolve = 0,
};
/* fails */
fd = openat2(-EBADF, "/dev/null", &how, sizeof(how));
/* succeeds */
fd = openat(-EBADF, "/dev/null", O_RDONLY | O_FLAG_CURRENTLY_INVALID);
However, openat2() silently truncates the upper 32 bits meaning:
#define O_FLAG_CURRENTLY_INVALID_LOWER32 (1 << 31)
#define O_FLAG_CURRENTLY_INVALID_UPPER32 (1 << 40)
struct open_how how_lowe32 = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID_LOWER32,
};
struct open_how how_upper32 = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID_UPPER32,
};
/* fails */
fd = openat2(-EBADF, "/dev/null", &how_lower32, sizeof(how_lower32));
/* succeeds */
fd = openat2(-EBADF, "/dev/null", &how_upper32, sizeof(how_upper32));
Fix this by preventing the immediate truncation in build_open_flags().
There's a snafu here though stripping FMODE_* directly from flags would
cause the upper 32 bits to be truncated as well due to integer promotion
rules since FMODE_* is unsigned int, O_* are signed ints (yuck).
In addition, struct open_flags currently defines flags to be 32 bit
which is reasonable. If we simply were to bump it to 64 bit we would
need to change a lot of code preemptively which doesn't seem worth it.
So simply add a compile-time check verifying that all currently known
O_* flags are within the 32 bit range and fail to build if they aren't
anymore.
This change shouldn't regress old open syscalls since they silently
truncate any unknown values anyway. It is a tiny semantic change for
openat2() but it is very unlikely people pass ing > 32 bit unknown flags
and the syscall is relatively new too.
Link: https://lore.kernel.org/r/20210528092417.3942079-3-brauner@kernel.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reported-by: Richard Guy Briggs <rgb@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/open.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/fs/open.c b/fs/open.c
index e53af13b5835..53bc0573c0ec 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1002,12 +1002,20 @@ inline struct open_how build_open_how(int flags, umode_t mode)
inline int build_open_flags(const struct open_how *how, struct open_flags *op)
{
- int flags = how->flags;
+ u64 flags = how->flags;
+ u64 strip = FMODE_NONOTIFY | O_CLOEXEC;
int lookup_flags = 0;
int acc_mode = ACC_MODE(flags);
- /* Must never be set by userspace */
- flags &= ~(FMODE_NONOTIFY | O_CLOEXEC);
+ BUILD_BUG_ON_MSG(upper_32_bits(VALID_OPEN_FLAGS),
+ "struct open_flags doesn't yet handle flags > 32 bits");
+
+ /*
+ * Strip flags that either shouldn't be set by userspace like
+ * FMODE_NONOTIFY or that aren't relevant in determining struct
+ * open_flags like O_CLOEXEC.
+ */
+ flags &= ~strip;
/*
* Older syscalls implicitly clear all of the invalid flags or argument
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 213/700] drivers: hv: Fix missing error code in vmbus_connect()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (211 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 212/700] open: dont silently ignore unknown O-flags in openat2() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 214/700] fs: dlm: fix lowcomms_start error case Greg Kroah-Hartman
` (492 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Abaci Robot, Jiapeng Chong,
Michael Kelley, Wei Liu, Sasha Levin
From: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
[ Upstream commit 9de6655cc5a6a1febc514465c87c24a0e96d8dba ]
Eliminate the follow smatch warning:
drivers/hv/connection.c:236 vmbus_connect() warn: missing error code
'ret'.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1621940321-72353-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hv/connection.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index c83612cddb99..425bf85ed1a0 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -229,8 +229,10 @@ int vmbus_connect(void)
*/
for (i = 0; ; i++) {
- if (i == ARRAY_SIZE(vmbus_versions))
+ if (i == ARRAY_SIZE(vmbus_versions)) {
+ ret = -EDOM;
goto cleanup;
+ }
version = vmbus_versions[i];
if (version > max_version)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 214/700] fs: dlm: fix lowcomms_start error case
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (212 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 213/700] drivers: hv: Fix missing error code in vmbus_connect() Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 215/700] fs: dlm: fix memory leak when fenced Greg Kroah-Hartman
` (491 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland, Sasha Levin
From: Alexander Aring <aahringo@redhat.com>
[ Upstream commit fcef0e6c27ce109d2c617aa12f0bfd9f7ff47d38 ]
This patch fixes the error path handling in lowcomms_start(). We need to
cleanup some static allocated data structure and cleanup possible
workqueue if these have started.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dlm/lowcomms.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 7e6736c70e11..d2a0ea0acca3 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1600,10 +1600,15 @@ static void process_send_sockets(struct work_struct *work)
static void work_stop(void)
{
- if (recv_workqueue)
+ if (recv_workqueue) {
destroy_workqueue(recv_workqueue);
- if (send_workqueue)
+ recv_workqueue = NULL;
+ }
+
+ if (send_workqueue) {
destroy_workqueue(send_workqueue);
+ send_workqueue = NULL;
+ }
}
static int work_start(void)
@@ -1620,6 +1625,7 @@ static int work_start(void)
if (!send_workqueue) {
log_print("can't start dlm_send");
destroy_workqueue(recv_workqueue);
+ recv_workqueue = NULL;
return -ENOMEM;
}
@@ -1751,7 +1757,7 @@ int dlm_lowcomms_start(void)
error = work_start();
if (error)
- goto fail;
+ goto fail_local;
dlm_allow_conn = 1;
@@ -1768,6 +1774,9 @@ int dlm_lowcomms_start(void)
fail_unlisten:
dlm_allow_conn = 0;
dlm_close_sock(&listen_con.sock);
+ work_stop();
+fail_local:
+ deinit_local();
fail:
return error;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 215/700] fs: dlm: fix memory leak when fenced
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (213 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 214/700] fs: dlm: fix lowcomms_start error case Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:04 ` [PATCH 5.12 216/700] ACPICA: Fix memory leak caused by _CID repair function Greg Kroah-Hartman
` (490 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Aring, David Teigland, Sasha Levin
From: Alexander Aring <aahringo@redhat.com>
[ Upstream commit 700ab1c363c7b54c9ea3222379b33fc00ab02f7b ]
I got some kmemleak report when a node was fenced. The user space tool
dlm_controld will therefore run some rmdir() in dlm configfs which was
triggering some memleaks. This patch stores the sps and cms attributes
which stores some handling for subdirectories of the configfs cluster
entry and free them if they get released as the parent directory gets
freed.
unreferenced object 0xffff88810d9e3e00 (size 192):
comm "dlm_controld", pid 342, jiffies 4294698126 (age 55438.801s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 73 70 61 63 65 73 00 00 ........spaces..
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000db8b640b>] make_cluster+0x5d/0x360
[<000000006a571db4>] configfs_mkdir+0x274/0x730
[<00000000b094501c>] vfs_mkdir+0x27e/0x340
[<0000000058b0adaf>] do_mkdirat+0xff/0x1b0
[<00000000d1ffd156>] do_syscall_64+0x40/0x80
[<00000000ab1408c8>] entry_SYSCALL_64_after_hwframe+0x44/0xae
unreferenced object 0xffff88810d9e3a00 (size 192):
comm "dlm_controld", pid 342, jiffies 4294698126 (age 55438.801s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 63 6f 6d 6d 73 00 00 00 ........comms...
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000a7ef6ad2>] make_cluster+0x82/0x360
[<000000006a571db4>] configfs_mkdir+0x274/0x730
[<00000000b094501c>] vfs_mkdir+0x27e/0x340
[<0000000058b0adaf>] do_mkdirat+0xff/0x1b0
[<00000000d1ffd156>] do_syscall_64+0x40/0x80
[<00000000ab1408c8>] entry_SYSCALL_64_after_hwframe+0x44/0xae
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dlm/config.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 88d95d96e36c..52bcda64172a 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -79,6 +79,9 @@ struct dlm_cluster {
unsigned int cl_new_rsb_count;
unsigned int cl_recover_callbacks;
char cl_cluster_name[DLM_LOCKSPACE_LEN];
+
+ struct dlm_spaces *sps;
+ struct dlm_comms *cms;
};
static struct dlm_cluster *config_item_to_cluster(struct config_item *i)
@@ -409,6 +412,9 @@ static struct config_group *make_cluster(struct config_group *g,
if (!cl || !sps || !cms)
goto fail;
+ cl->sps = sps;
+ cl->cms = cms;
+
config_group_init_type_name(&cl->group, name, &cluster_type);
config_group_init_type_name(&sps->ss_group, "spaces", &spaces_type);
config_group_init_type_name(&cms->cs_group, "comms", &comms_type);
@@ -458,6 +464,9 @@ static void drop_cluster(struct config_group *g, struct config_item *i)
static void release_cluster(struct config_item *i)
{
struct dlm_cluster *cl = config_item_to_cluster(i);
+
+ kfree(cl->sps);
+ kfree(cl->cms);
kfree(cl);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 216/700] ACPICA: Fix memory leak caused by _CID repair function
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (214 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 215/700] fs: dlm: fix memory leak when fenced Greg Kroah-Hartman
@ 2021-07-12 6:04 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 217/700] ACPI: bus: Call kobject_put() in acpi_init() error path Greg Kroah-Hartman
` (489 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:04 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shawn Guo, Erik Kaneda, Bob Moore,
Rafael J. Wysocki, Sasha Levin
From: Erik Kaneda <erik.kaneda@intel.com>
[ Upstream commit c27bac0314131b11bccd735f7e8415ac6444b667 ]
ACPICA commit 180cb53963aa876c782a6f52cc155d951b26051a
According to the ACPI spec, _CID returns a package containing
hardware ID's. Each element of an ASL package contains a reference
count from the parent package as well as the element itself.
Name (TEST, Package() {
"String object" // this package element has a reference count of 2
})
A memory leak was caused in the _CID repair function because it did
not decrement the reference count created by the package. Fix the
memory leak by calling acpi_ut_remove_reference on _CID package elements
that represent a hardware ID (_HID).
Link: https://github.com/acpica/acpica/commit/180cb539
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpica/nsrepair2.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 14b71b41e845..38e10ab976e6 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -379,6 +379,13 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info,
(*element_ptr)->common.reference_count =
original_ref_count;
+
+ /*
+ * The original_element holds a reference from the package object
+ * that represents _HID. Since a new element was created by _HID,
+ * remove the reference from the _CID package.
+ */
+ acpi_ut_remove_reference(original_element);
}
element_ptr++;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 217/700] ACPI: bus: Call kobject_put() in acpi_init() error path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (215 preceding siblings ...)
2021-07-12 6:04 ` [PATCH 5.12 216/700] ACPICA: Fix memory leak caused by _CID repair function Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 218/700] ACPI: resources: Add checks for ACPI IRQ override Greg Kroah-Hartman
` (488 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hanjun Guo, Rafael J. Wysocki, Sasha Levin
From: Hanjun Guo <guohanjun@huawei.com>
[ Upstream commit 4ac7a817f1992103d4e68e9837304f860b5e7300 ]
Although the system will not be in a good condition or it will not
boot if acpi_bus_init() fails, it is still necessary to put the
kobject in the error path before returning to avoid leaking memory.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/bus.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index a4bd673934c0..44b4f02e2c6d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1321,6 +1321,7 @@ static int __init acpi_init(void)
result = acpi_bus_init();
if (result) {
+ kobject_put(acpi_kobj);
disable_acpi();
return result;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 218/700] ACPI: resources: Add checks for ACPI IRQ override
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (216 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 217/700] ACPI: bus: Call kobject_put() in acpi_init() error path Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 219/700] HID: hid-input: add Surface Go battery quirk Greg Kroah-Hartman
` (487 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rafael J. Wysocki, Manuel Krause,
Hui Wang, Sasha Levin
From: Hui Wang <hui.wang@canonical.com>
[ Upstream commit 0ec4e55e9f571f08970ed115ec0addc691eda613 ]
The laptop keyboard doesn't work on many MEDION notebooks, but the
keyboard works well under Windows and Unix.
Through debugging, we found this log in the dmesg:
ACPI: IRQ 1 override to edge, high
pnp 00:03: Plug and Play ACPI device, IDs PNP0303 (active)
And we checked the IRQ definition in the DSDT, it is:
IRQ (Level, ActiveLow, Exclusive, )
{1}
So the BIOS defines the keyboard IRQ to Level_Low, but the Linux
kernel override it to Edge_High. If the Linux kernel is modified
to skip the IRQ override, the keyboard will work normally.
>From the existing comment in acpi_dev_get_irqresource(), the override
function only needs to be called when IRQ() or IRQNoFlags() is used
to populate the resource descriptor, and according to Section 6.4.2.1
of ACPI 6.4 [1], if IRQ() is empty or IRQNoFlags() is used, the IRQ
is High true, edge sensitive and non-shareable. ACPICA also assumes
that to be the case (see acpi_rs_set_irq[] in rsirq.c).
In accordance with the above, check 3 additional conditions
(EdgeSensitive, ActiveHigh and Exclusive) when deciding whether or
not to treat an ACPI_RESOURCE_TYPE_IRQ resource as "legacy", in which
case the IRQ override is applicable to it.
Link: https://uefi.org/specs/ACPI/6.4/06_Device_Configuration/Device_Configuration.html#irq-descriptor # [1]
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213031
BugLink: http://bugs.launchpad.net/bugs/1909814
Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-by: Manuel Krause <manuelkrause@netscape.net>
Tested-by: Manuel Krause <manuelkrause@netscape.net>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
[ rjw: Subject rewrite, changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/resource.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 20a7892c6d3f..f0b2c3791253 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -423,6 +423,13 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
}
}
+static bool irq_is_legacy(struct acpi_resource_irq *irq)
+{
+ return irq->triggering == ACPI_EDGE_SENSITIVE &&
+ irq->polarity == ACPI_ACTIVE_HIGH &&
+ irq->shareable == ACPI_EXCLUSIVE;
+}
+
/**
* acpi_dev_resource_interrupt - Extract ACPI interrupt resource information.
* @ares: Input ACPI resource object.
@@ -461,7 +468,7 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
}
acpi_dev_get_irqresource(res, irq->interrupts[index],
irq->triggering, irq->polarity,
- irq->shareable, true);
+ irq->shareable, irq_is_legacy(irq));
break;
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
ext_irq = &ares->data.extended_irq;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 219/700] HID: hid-input: add Surface Go battery quirk
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (217 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 218/700] ACPI: resources: Add checks for ACPI IRQ override Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 220/700] HID: sony: fix freeze when inserting ghlive ps3/wii dongles Greg Kroah-Hartman
` (486 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zoltan Tamas Vajda, Jiri Kosina, Sasha Levin
From: Zoltan Tamas Vajda <zoltan.tamas.vajda@gmail.com>
[ Upstream commit b5539722eb832441f309642fe5102cc3536f92b8 ]
The Elantech touchscreen/digitizer in the Surface Go mistakenly reports
having a battery. This results in a low battery message every time you
try to use the pen.
This patch adds a quirk to ignore the non-existent battery and
gets rid of the false low battery messages.
Signed-off-by: Zoltan Tamas Vajda <zoltan.tamas.vajda@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-input.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 03978111d944..06168f485722 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -397,6 +397,7 @@
#define USB_DEVICE_ID_HP_X2_10_COVER 0x0755
#define I2C_DEVICE_ID_HP_SPECTRE_X360_15 0x2817
#define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706
+#define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A
#define USB_VENDOR_ID_ELECOM 0x056e
#define USB_DEVICE_ID_ELECOM_BM084 0x0061
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index e982d8173c9c..bf5e728258c1 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -326,6 +326,8 @@ static const struct hid_device_id hid_battery_quirks[] = {
HID_BATTERY_QUIRK_IGNORE },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_15),
HID_BATTERY_QUIRK_IGNORE },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN),
+ HID_BATTERY_QUIRK_IGNORE },
{}
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 220/700] HID: sony: fix freeze when inserting ghlive ps3/wii dongles
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (218 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 219/700] HID: hid-input: add Surface Go battery quirk Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 221/700] block: fix race between adding/removing rq qos and normal IO Greg Kroah-Hartman
` (485 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pascal Giard, Jiri Kosina, Sasha Levin
From: Pascal Giard <pascal.giard@etsmtl.ca>
[ Upstream commit fb1a79a6b6e1223ddb18f12aa35e36f832da2290 ]
This commit fixes a freeze on insertion of a Guitar Hero Live PS3/WiiU
USB dongle. Indeed, with the current implementation, inserting one of
those USB dongles will lead to a hard freeze. I apologize for not
catching this earlier, it didn't occur on my old laptop.
While the issue was isolated to memory alloc/free, I could not figure
out why it causes a freeze. So this patch fixes this issue by
simplifying memory allocation and usage.
We remind that for the dongle to work properly, a control URB needs to
be sent periodically. We used to alloc/free the URB each time this URB
needed to be sent.
With this patch, the memory for the URB is allocated on the probe, reused
for as long as the dongle is plugged in, and freed once the dongle is
unplugged.
Signed-off-by: Pascal Giard <pascal.giard@etsmtl.ca>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-sony.c | 98 +++++++++++++++++++++---------------------
1 file changed, 49 insertions(+), 49 deletions(-)
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 8319b0ce385a..b3722c51ec78 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -597,9 +597,8 @@ struct sony_sc {
/* DS4 calibration data */
struct ds4_calibration_data ds4_calib_data[6];
/* GH Live */
+ struct urb *ghl_urb;
struct timer_list ghl_poke_timer;
- struct usb_ctrlrequest *ghl_cr;
- u8 *ghl_databuf;
};
static void sony_set_leds(struct sony_sc *sc);
@@ -625,66 +624,54 @@ static inline void sony_schedule_work(struct sony_sc *sc,
static void ghl_magic_poke_cb(struct urb *urb)
{
- if (urb) {
- /* Free sc->ghl_cr and sc->ghl_databuf allocated in
- * ghl_magic_poke()
- */
- kfree(urb->setup_packet);
- kfree(urb->transfer_buffer);
- }
+ struct sony_sc *sc = urb->context;
+
+ if (urb->status < 0)
+ hid_err(sc->hdev, "URB transfer failed : %d", urb->status);
+
+ mod_timer(&sc->ghl_poke_timer, jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
}
static void ghl_magic_poke(struct timer_list *t)
{
+ int ret;
struct sony_sc *sc = from_timer(sc, t, ghl_poke_timer);
- int ret;
+ ret = usb_submit_urb(sc->ghl_urb, GFP_ATOMIC);
+ if (ret < 0)
+ hid_err(sc->hdev, "usb_submit_urb failed: %d", ret);
+}
+
+static int ghl_init_urb(struct sony_sc *sc, struct usb_device *usbdev)
+{
+ struct usb_ctrlrequest *cr;
+ u16 poke_size;
+ u8 *databuf;
unsigned int pipe;
- struct urb *urb;
- struct usb_device *usbdev = to_usb_device(sc->hdev->dev.parent->parent);
- const u16 poke_size =
- ARRAY_SIZE(ghl_ps3wiiu_magic_data);
+ poke_size = ARRAY_SIZE(ghl_ps3wiiu_magic_data);
pipe = usb_sndctrlpipe(usbdev, 0);
- if (!sc->ghl_cr) {
- sc->ghl_cr = kzalloc(sizeof(*sc->ghl_cr), GFP_ATOMIC);
- if (!sc->ghl_cr)
- goto resched;
- }
-
- if (!sc->ghl_databuf) {
- sc->ghl_databuf = kzalloc(poke_size, GFP_ATOMIC);
- if (!sc->ghl_databuf)
- goto resched;
- }
+ cr = devm_kzalloc(&sc->hdev->dev, sizeof(*cr), GFP_ATOMIC);
+ if (cr == NULL)
+ return -ENOMEM;
- urb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!urb)
- goto resched;
+ databuf = devm_kzalloc(&sc->hdev->dev, poke_size, GFP_ATOMIC);
+ if (databuf == NULL)
+ return -ENOMEM;
- sc->ghl_cr->bRequestType =
+ cr->bRequestType =
USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT;
- sc->ghl_cr->bRequest = USB_REQ_SET_CONFIGURATION;
- sc->ghl_cr->wValue = cpu_to_le16(ghl_ps3wiiu_magic_value);
- sc->ghl_cr->wIndex = 0;
- sc->ghl_cr->wLength = cpu_to_le16(poke_size);
- memcpy(sc->ghl_databuf, ghl_ps3wiiu_magic_data, poke_size);
-
+ cr->bRequest = USB_REQ_SET_CONFIGURATION;
+ cr->wValue = cpu_to_le16(ghl_ps3wiiu_magic_value);
+ cr->wIndex = 0;
+ cr->wLength = cpu_to_le16(poke_size);
+ memcpy(databuf, ghl_ps3wiiu_magic_data, poke_size);
usb_fill_control_urb(
- urb, usbdev, pipe,
- (unsigned char *) sc->ghl_cr, sc->ghl_databuf,
- poke_size, ghl_magic_poke_cb, NULL);
- ret = usb_submit_urb(urb, GFP_ATOMIC);
- if (ret < 0) {
- kfree(sc->ghl_databuf);
- kfree(sc->ghl_cr);
- }
- usb_free_urb(urb);
-
-resched:
- /* Reschedule for next time */
- mod_timer(&sc->ghl_poke_timer, jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
+ sc->ghl_urb, usbdev, pipe,
+ (unsigned char *) cr, databuf, poke_size,
+ ghl_magic_poke_cb, sc);
+ return 0;
}
static int guitar_mapping(struct hid_device *hdev, struct hid_input *hi,
@@ -2981,6 +2968,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
int ret;
unsigned long quirks = id->driver_data;
struct sony_sc *sc;
+ struct usb_device *usbdev;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
if (!strcmp(hdev->name, "FutureMax Dance Mat"))
@@ -3000,6 +2988,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
sc->quirks = quirks;
hid_set_drvdata(hdev, sc);
sc->hdev = hdev;
+ usbdev = to_usb_device(sc->hdev->dev.parent->parent);
ret = hid_parse(hdev);
if (ret) {
@@ -3042,6 +3031,15 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
}
if (sc->quirks & GHL_GUITAR_PS3WIIU) {
+ sc->ghl_urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!sc->ghl_urb)
+ return -ENOMEM;
+ ret = ghl_init_urb(sc, usbdev);
+ if (ret) {
+ hid_err(hdev, "error preparing URB\n");
+ return ret;
+ }
+
timer_setup(&sc->ghl_poke_timer, ghl_magic_poke, 0);
mod_timer(&sc->ghl_poke_timer,
jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
@@ -3054,8 +3052,10 @@ static void sony_remove(struct hid_device *hdev)
{
struct sony_sc *sc = hid_get_drvdata(hdev);
- if (sc->quirks & GHL_GUITAR_PS3WIIU)
+ if (sc->quirks & GHL_GUITAR_PS3WIIU) {
del_timer_sync(&sc->ghl_poke_timer);
+ usb_free_urb(sc->ghl_urb);
+ }
hid_hw_close(hdev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 221/700] block: fix race between adding/removing rq qos and normal IO
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (219 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 220/700] HID: sony: fix freeze when inserting ghlive ps3/wii dongles Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 222/700] platform/x86: asus-nb-wmi: Revert "Drop duplicate DMI quirk structures" Greg Kroah-Hartman
` (484 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yi Zhang, Bart Van Assche, Ming Lei,
Jens Axboe, Sasha Levin
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit 2cafe29a8d03f02a3d16193bdaae2f3e82a423f9 ]
Yi reported several kernel panics on:
[16687.001777] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
...
[16687.163549] pc : __rq_qos_track+0x38/0x60
or
[ 997.690455] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
...
[ 997.850347] pc : __rq_qos_done+0x2c/0x50
Turns out it is caused by race between adding rq qos(wbt) and normal IO
because rq_qos_add can be run when IO is being submitted, fix this issue
by freezing queue before adding/deleting rq qos to queue.
rq_qos_exit() needn't to freeze queue because it is called after queue
has been frozen.
iolatency calls rq_qos_add() during allocating queue, so freezing won't
add delay because queue usage refcount works at atomic mode at that
time.
iocost calls rq_qos_add() when writing cgroup attribute file, that is
fine to freeze queue at that time since we usually freeze queue when
storing to queue sysfs attribute, meantime iocost only exists on the
root cgroup.
wbt_init calls it in blk_register_queue() and queue sysfs attribute
store(queue_wb_lat_store() when write it 1st time in case of !BLK_WBT_MQ),
the following patch will speedup the queue freezing in wbt_init.
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Link: https://lore.kernel.org/r/20210609015822.103433-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-rq-qos.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/block/blk-rq-qos.h b/block/blk-rq-qos.h
index 2bc43e94f4c4..2bcb3495e376 100644
--- a/block/blk-rq-qos.h
+++ b/block/blk-rq-qos.h
@@ -7,6 +7,7 @@
#include <linux/blk_types.h>
#include <linux/atomic.h>
#include <linux/wait.h>
+#include <linux/blk-mq.h>
#include "blk-mq-debugfs.h"
@@ -99,8 +100,21 @@ static inline void rq_wait_init(struct rq_wait *rq_wait)
static inline void rq_qos_add(struct request_queue *q, struct rq_qos *rqos)
{
+ /*
+ * No IO can be in-flight when adding rqos, so freeze queue, which
+ * is fine since we only support rq_qos for blk-mq queue.
+ *
+ * Reuse ->queue_lock for protecting against other concurrent
+ * rq_qos adding/deleting
+ */
+ blk_mq_freeze_queue(q);
+
+ spin_lock_irq(&q->queue_lock);
rqos->next = q->rq_qos;
q->rq_qos = rqos;
+ spin_unlock_irq(&q->queue_lock);
+
+ blk_mq_unfreeze_queue(q);
if (rqos->ops->debugfs_attrs)
blk_mq_debugfs_register_rqos(rqos);
@@ -110,12 +124,22 @@ static inline void rq_qos_del(struct request_queue *q, struct rq_qos *rqos)
{
struct rq_qos **cur;
+ /*
+ * See comment in rq_qos_add() about freezing queue & using
+ * ->queue_lock.
+ */
+ blk_mq_freeze_queue(q);
+
+ spin_lock_irq(&q->queue_lock);
for (cur = &q->rq_qos; *cur; cur = &(*cur)->next) {
if (*cur == rqos) {
*cur = rqos->next;
break;
}
}
+ spin_unlock_irq(&q->queue_lock);
+
+ blk_mq_unfreeze_queue(q);
blk_mq_debugfs_unregister_rqos(rqos);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 222/700] platform/x86: asus-nb-wmi: Revert "Drop duplicate DMI quirk structures"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (220 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 221/700] block: fix race between adding/removing rq qos and normal IO Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 223/700] platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15" Greg Kroah-Hartman
` (483 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luke D. Jones, Hans de Goede, Sasha Levin
From: Luke D. Jones <luke@ljones.dev>
[ Upstream commit 98c0c85b1040db24f0d04d3e1d315c6c7b05cc07 ]
This is a preparation revert for reverting the "add support for ASUS ROG
Zephyrus G14 and G15" change. This reverts
commit 67186653c903 ("platform/x86: asus-nb-wmi: Drop duplicate DMI quirk
structures")
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20210419074915.393433-2-luke@ljones.dev
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/asus-nb-wmi.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index d41d7ad14be0..b07b1288346e 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -110,7 +110,12 @@ static struct quirk_entry quirk_asus_forceals = {
.wmi_force_als_set = true,
};
-static struct quirk_entry quirk_asus_vendor_backlight = {
+static struct quirk_entry quirk_asus_ga401i = {
+ .wmi_backlight_power = true,
+ .wmi_backlight_set_devstate = true,
+};
+
+static struct quirk_entry quirk_asus_ga502i = {
.wmi_backlight_power = true,
.wmi_backlight_set_devstate = true,
};
@@ -432,7 +437,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA401IH"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga401i,
},
{
.callback = dmi_matched,
@@ -441,7 +446,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA401II"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga401i,
},
{
.callback = dmi_matched,
@@ -450,7 +455,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA401IU"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga401i,
},
{
.callback = dmi_matched,
@@ -459,7 +464,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA401IV"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga401i,
},
{
.callback = dmi_matched,
@@ -468,7 +473,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA401IVC"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga401i,
},
{
.callback = dmi_matched,
@@ -477,7 +482,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA502II"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga502i,
},
{
.callback = dmi_matched,
@@ -486,7 +491,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA502IU"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga502i,
},
{
.callback = dmi_matched,
@@ -495,7 +500,7 @@ static const struct dmi_system_id asus_quirks[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "GA502IV"),
},
- .driver_data = &quirk_asus_vendor_backlight,
+ .driver_data = &quirk_asus_ga502i,
},
{
.callback = dmi_matched,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 223/700] platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (221 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 222/700] platform/x86: asus-nb-wmi: Revert "Drop duplicate DMI quirk structures" Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 224/700] platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard() Greg Kroah-Hartman
` (482 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luke D. Jones, Hans de Goede, Sasha Levin
From: Luke D. Jones <luke@ljones.dev>
[ Upstream commit 28117f3a5c3c8375a3304af76357d5bf9cf30f0b ]
The quirks added to asus-nb-wmi for the ASUS ROG Zephyrus G14 and G15 are
wrong, they tell the asus-wmi code to use the vendor specific WMI backlight
interface. But there is no such interface on these laptops.
As a side effect, these quirks stop the acpi_video driver to register since
they make acpi_video_get_backlight_type() return acpi_backlight_vendor,
leaving only the native AMD backlight driver in place, which is the one we
want. This happy coincidence is being replaced with a new quirk in
drivers/acpi/video_detect.c which actually sets the backlight_type to
acpi_backlight_native fixinf this properly. This reverts
commit 13bceda68fb9 ("platform/x86: asus-nb-wmi: add support for ASUS ROG
Zephyrus G14 and G15").
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20210419074915.393433-3-luke@ljones.dev
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/asus-nb-wmi.c | 82 ------------------------------
1 file changed, 82 deletions(-)
diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index b07b1288346e..0cb927f0f301 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -110,16 +110,6 @@ static struct quirk_entry quirk_asus_forceals = {
.wmi_force_als_set = true,
};
-static struct quirk_entry quirk_asus_ga401i = {
- .wmi_backlight_power = true,
- .wmi_backlight_set_devstate = true,
-};
-
-static struct quirk_entry quirk_asus_ga502i = {
- .wmi_backlight_power = true,
- .wmi_backlight_set_devstate = true,
-};
-
static struct quirk_entry quirk_asus_use_kbd_dock_devid = {
.use_kbd_dock_devid = true,
};
@@ -430,78 +420,6 @@ static const struct dmi_system_id asus_quirks[] = {
},
.driver_data = &quirk_asus_forceals,
},
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA401IH",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA401IH"),
- },
- .driver_data = &quirk_asus_ga401i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA401II",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA401II"),
- },
- .driver_data = &quirk_asus_ga401i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA401IU",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA401IU"),
- },
- .driver_data = &quirk_asus_ga401i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA401IV",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA401IV"),
- },
- .driver_data = &quirk_asus_ga401i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA401IVC",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA401IVC"),
- },
- .driver_data = &quirk_asus_ga401i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA502II",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA502II"),
- },
- .driver_data = &quirk_asus_ga502i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA502IU",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA502IU"),
- },
- .driver_data = &quirk_asus_ga502i,
- },
- {
- .callback = dmi_matched,
- .ident = "ASUSTeK COMPUTER INC. GA502IV",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
- DMI_MATCH(DMI_PRODUCT_NAME, "GA502IV"),
- },
- .driver_data = &quirk_asus_ga502i,
- },
{
.callback = dmi_matched,
.ident = "Asus Transformer T100TA / T100HA / T100CHI",
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 224/700] platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (222 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 223/700] platform/x86: asus-nb-wmi: Revert "add support for ASUS ROG Zephyrus G14 and G15" Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 225/700] nvme-pci: fix var. type for increasing cq_head Greg Kroah-Hartman
` (481 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Abaci Robot, Jiapeng Chong,
Hans de Goede, Sasha Levin
From: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
[ Upstream commit 28e367127718a9cb85d615a71e152f7acee41bfc ]
The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'error'.
Eliminate the follow smatch warning:
drivers/platform/x86/toshiba_acpi.c:2834 toshiba_acpi_setup_keyboard()
warn: missing error code 'error'.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1622628348-87035-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/toshiba_acpi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index fa7232ad8c39..352508d30467 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2831,6 +2831,7 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
if (!dev->info_supported && !dev->system_event_supported) {
pr_warn("No hotkey query interface found\n");
+ error = -EINVAL;
goto err_remove_filter;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 225/700] nvme-pci: fix var. type for increasing cq_head
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (223 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 224/700] platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 226/700] nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst() Greg Kroah-Hartman
` (480 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, JK Kim, Christoph Hellwig, Sasha Levin
From: JK Kim <jongkang.kim2@gmail.com>
[ Upstream commit a0aac973a26d1ac814b9e131e209eb39472a67ce ]
nvmeq->cq_head is compared with nvmeq->q_depth and changed the value
and cq_phase for handling the next cq db.
but, nvmeq->q_depth's type is u32 and max. value is 0x10000 when
CQP.MSQE is 0xffff and io_queue_depth is 0x10000.
current temp. variable for comparing with nvmeq->q_depth is overflowed
when previous nvmeq->cq_head is 0xffff.
in this case, nvmeq->cq_phase is not updated.
so, fix data type for temp. variable to u32.
Signed-off-by: JK Kim <jongkang.kim2@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index c92a15c3fbc5..4555e9202851 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1027,7 +1027,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, u16 idx)
static inline void nvme_update_cq_head(struct nvme_queue *nvmeq)
{
- u16 tmp = nvmeq->cq_head + 1;
+ u32 tmp = nvmeq->cq_head + 1;
if (tmp == nvmeq->q_depth) {
nvmeq->cq_head = 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 226/700] nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (224 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 225/700] nvme-pci: fix var. type for increasing cq_head Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 227/700] EDAC/Intel: Do not load EDAC driver when running as a guest Greg Kroah-Hartman
` (479 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hannes Reinecke, James Smart,
Christoph Hellwig, Sasha Levin
From: Hannes Reinecke <hare@suse.de>
[ Upstream commit 2a4a910aa4f0acc428dc8d10227c42e14ed21d10 ]
When parsing a request in nvmet_fc_handle_fcp_rqst() we should not
check for invalid target ports; if we do the command is aborted
from the fcp layer, causing the host to assume a transport error.
Rather we should still forward this request to the nvmet layer, which
will then correctly fail the command with an appropriate error status.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/target/fc.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index d375745fc4ed..b81db5270018 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -2494,13 +2494,6 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
u32 xfrlen = be32_to_cpu(cmdiu->data_len);
int ret;
- /*
- * if there is no nvmet mapping to the targetport there
- * shouldn't be requests. just terminate them.
- */
- if (!tgtport->pe)
- goto transport_error;
-
/*
* Fused commands are currently not supported in the linux
* implementation.
@@ -2528,7 +2521,8 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
fod->req.cmd = &fod->cmdiubuf.sqe;
fod->req.cqe = &fod->rspiubuf.cqe;
- fod->req.port = tgtport->pe->port;
+ if (tgtport->pe)
+ fod->req.port = tgtport->pe->port;
/* clear any response payload */
memset(&fod->rspiubuf, 0, sizeof(fod->rspiubuf));
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 227/700] EDAC/Intel: Do not load EDAC driver when running as a guest
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (225 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 226/700] nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 228/700] tools/power/x86/intel-speed-select: Fix uncore memory frequency display Greg Kroah-Hartman
` (478 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Borislav Petkov, Tony Luck, Sasha Levin
From: Luck, Tony <tony.luck@intel.com>
[ Upstream commit f0a029fff4a50eb01648810a77ba1873e829fdd4 ]
There's little to no point in loading an EDAC driver running in a guest:
1) The CPU model reported by CPUID may not represent actual h/w
2) The hypervisor likely does not pass in access to memory controller devices
3) Hypervisors generally do not pass corrected error details to guests
Add a check in each of the Intel EDAC drivers for X86_FEATURE_HYPERVISOR
and simply return -ENODEV in the init routine.
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20210615174419.GA1087688@agluck-desk2.amr.corp.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/edac/i10nm_base.c | 3 +++
drivers/edac/pnd2_edac.c | 3 +++
drivers/edac/sb_edac.c | 3 +++
drivers/edac/skx_base.c | 3 +++
4 files changed, 12 insertions(+)
diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c
index 238a4ad1e526..37b4e875420e 100644
--- a/drivers/edac/i10nm_base.c
+++ b/drivers/edac/i10nm_base.c
@@ -278,6 +278,9 @@ static int __init i10nm_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(i10nm_cpuids);
if (!id)
return -ENODEV;
diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index 928f63a374c7..c94ca1f790c4 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -1554,6 +1554,9 @@ static int __init pnd2_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(pnd2_cpuids);
if (!id)
return -ENODEV;
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 93daa4297f2e..4c626fcd4dcb 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -3510,6 +3510,9 @@ static int __init sbridge_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(sbridge_cpuids);
if (!id)
return -ENODEV;
diff --git a/drivers/edac/skx_base.c b/drivers/edac/skx_base.c
index 6a4f0b27c654..4dbd46575bfb 100644
--- a/drivers/edac/skx_base.c
+++ b/drivers/edac/skx_base.c
@@ -656,6 +656,9 @@ static int __init skx_init(void)
if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
return -EBUSY;
+ if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
id = x86_match_cpu(skx_cpuids);
if (!id)
return -ENODEV;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 228/700] tools/power/x86/intel-speed-select: Fix uncore memory frequency display
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (226 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 227/700] EDAC/Intel: Do not load EDAC driver when running as a guest Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 229/700] PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv() Greg Kroah-Hartman
` (477 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Srinivas Pandruvada, Hans de Goede,
Sasha Levin
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ Upstream commit 159f130f60f402273b235801d1fde3fc115c6795 ]
The uncore memory frequency value from the mailbox command
CONFIG_TDP_GET_MEM_FREQ needs to be scaled based on the platform for
display. There is no single constant multiplier.
This change introduces CPU model specific memory frequency multiplier.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/power/x86/intel-speed-select/isst-config.c | 16 ++++++++++++++++
tools/power/x86/intel-speed-select/isst-core.c | 15 +++++++++++++++
.../power/x86/intel-speed-select/isst-display.c | 2 +-
tools/power/x86/intel-speed-select/isst.h | 2 ++
4 files changed, 34 insertions(+), 1 deletion(-)
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 582feb88eca3..3ff8d64369d7 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -106,6 +106,22 @@ int is_skx_based_platform(void)
return 0;
}
+int is_spr_platform(void)
+{
+ if (cpu_model == 0x8F)
+ return 1;
+
+ return 0;
+}
+
+int is_icx_platform(void)
+{
+ if (cpu_model == 0x6A || cpu_model == 0x6C)
+ return 1;
+
+ return 0;
+}
+
static int update_cpu_model(void)
{
unsigned int ebx, ecx, edx;
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
index 6a26d5769984..4431c8a0d40a 100644
--- a/tools/power/x86/intel-speed-select/isst-core.c
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -201,6 +201,7 @@ void isst_get_uncore_mem_freq(int cpu, int config_index,
{
unsigned int resp;
int ret;
+
ret = isst_send_mbox_command(cpu, CONFIG_TDP, CONFIG_TDP_GET_MEM_FREQ,
0, config_index, &resp);
if (ret) {
@@ -209,6 +210,20 @@ void isst_get_uncore_mem_freq(int cpu, int config_index,
}
ctdp_level->mem_freq = resp & GENMASK(7, 0);
+ if (is_spr_platform()) {
+ ctdp_level->mem_freq *= 200;
+ } else if (is_icx_platform()) {
+ if (ctdp_level->mem_freq < 7) {
+ ctdp_level->mem_freq = (12 - ctdp_level->mem_freq) * 133.33 * 2 * 10;
+ ctdp_level->mem_freq /= 10;
+ if (ctdp_level->mem_freq % 10 > 5)
+ ctdp_level->mem_freq++;
+ } else {
+ ctdp_level->mem_freq = 0;
+ }
+ } else {
+ ctdp_level->mem_freq = 0;
+ }
debug_printf(
"cpu:%d ctdp:%d CONFIG_TDP_GET_MEM_FREQ resp:%x uncore mem_freq:%d\n",
cpu, config_index, resp, ctdp_level->mem_freq);
diff --git a/tools/power/x86/intel-speed-select/isst-display.c b/tools/power/x86/intel-speed-select/isst-display.c
index 3bf1820c0da1..f97d8859ada7 100644
--- a/tools/power/x86/intel-speed-select/isst-display.c
+++ b/tools/power/x86/intel-speed-select/isst-display.c
@@ -446,7 +446,7 @@ void isst_ctdp_display_information(int cpu, FILE *outf, int tdp_level,
if (ctdp_level->mem_freq) {
snprintf(header, sizeof(header), "mem-frequency(MHz)");
snprintf(value, sizeof(value), "%d",
- ctdp_level->mem_freq * DISP_FREQ_MULTIPLIER);
+ ctdp_level->mem_freq);
format_and_print(outf, level + 2, header, value);
}
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index 0cac6c54be87..1aa15d5ea57c 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -257,5 +257,7 @@ extern int get_cpufreq_base_freq(int cpu);
extern int isst_read_pm_config(int cpu, int *cp_state, int *cp_cap);
extern void isst_display_error_info_message(int error, char *msg, int arg_valid, int arg);
extern int is_skx_based_platform(void);
+extern int is_spr_platform(void);
+extern int is_icx_platform(void);
extern void isst_trl_display_information(int cpu, FILE *outf, unsigned long long trl);
#endif
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 229/700] PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (227 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 228/700] tools/power/x86/intel-speed-select: Fix uncore memory frequency display Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 230/700] cifs: improve fallocate emulation Greg Kroah-Hartman
` (476 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Haiyang Zhang, Wei Liu, Sasha Levin,
Mohammad Alqayeem
From: Haiyang Zhang <haiyangz@microsoft.com>
[ Upstream commit 7d815f4afa87f2032b650ae1bba7534b550a6b8b ]
Add check for hv_is_hyperv_initialized() at the top of
init_hv_pci_drv(), so if the pci-hyperv driver is force-loaded on non
Hyper-V platforms, the init_hv_pci_drv() will exit immediately, without
any side effects, like assignments to hvpci_block_ops, etc.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reported-and-tested-by: Mohammad Alqayeem <mohammad.alqyeem@nutanix.com>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/1621984653-1210-1-git-send-email-haiyangz@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/controller/pci-hyperv.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index 27a17a1e4a7c..7479edf3676c 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -3480,6 +3480,9 @@ static void __exit exit_hv_pci_drv(void)
static int __init init_hv_pci_drv(void)
{
+ if (!hv_is_hyperv_initialized())
+ return -ENODEV;
+
/* Set the invalid domain number's bit, so it will not be used */
set_bit(HVPCI_DOM_INVALID, hvpci_dom_map);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 230/700] cifs: improve fallocate emulation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (228 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 229/700] PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 231/700] cifs: fix check of dfs interlinks Greg Kroah-Hartman
` (475 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Ronnie Sahlberg,
Aurelien Aptel, Paulo Alcantara (SUSE),
Steve French, Sasha Levin
From: Ronnie Sahlberg <lsahlber@redhat.com>
[ Upstream commit 966a3cb7c7db786452a87afdc3b48858fc4d4d6b ]
RHBZ: 1866684
We don't have a real fallocate in the SMB2 protocol so we used to emulate fallocate
by simply switching the file to become non-sparse. But as that could potantially consume
a lot more data than we intended to fallocate (large sparse file and fallocating a thin
slice in the middle) we would only do this IFF the fallocate request was for virtually
the entire file.
This patch improves this and starts allowing us to fallocate smaller chunks of a file by
overwriting the region with 0, for the parts that are unallocated.
The method used is to first query the server for FSCTL_QUERY_ALLOCATED_RANGES to find what
is unallocated in the fallocate range and then to only overwrite-with-zero the unallocated
ranges to fill in the holes.
As overwriting-with-zero is different from just allocating blocks, and potentially much
more expensive, we limit this to only allow fallocate ranges up to 1Mb in size.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Acked-by: Aurelien Aptel <aaptel@suse.com>
Acked-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/smb2ops.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 133 insertions(+)
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index e9a530da4255..ea5e958fd6b0 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -3561,6 +3561,119 @@ static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
return rc;
}
+static int smb3_simple_fallocate_write_range(unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct cifsFileInfo *cfile,
+ loff_t off, loff_t len,
+ char *buf)
+{
+ struct cifs_io_parms io_parms = {0};
+ int nbytes;
+ struct kvec iov[2];
+
+ io_parms.netfid = cfile->fid.netfid;
+ io_parms.pid = current->tgid;
+ io_parms.tcon = tcon;
+ io_parms.persistent_fid = cfile->fid.persistent_fid;
+ io_parms.volatile_fid = cfile->fid.volatile_fid;
+ io_parms.offset = off;
+ io_parms.length = len;
+
+ /* iov[0] is reserved for smb header */
+ iov[1].iov_base = buf;
+ iov[1].iov_len = io_parms.length;
+ return SMB2_write(xid, &io_parms, &nbytes, iov, 1);
+}
+
+static int smb3_simple_fallocate_range(unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct cifsFileInfo *cfile,
+ loff_t off, loff_t len)
+{
+ struct file_allocated_range_buffer in_data, *out_data = NULL, *tmp_data;
+ u32 out_data_len;
+ char *buf = NULL;
+ loff_t l;
+ int rc;
+
+ in_data.file_offset = cpu_to_le64(off);
+ in_data.length = cpu_to_le64(len);
+ rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FSCTL_QUERY_ALLOCATED_RANGES, true,
+ (char *)&in_data, sizeof(in_data),
+ 1024 * sizeof(struct file_allocated_range_buffer),
+ (char **)&out_data, &out_data_len);
+ if (rc)
+ goto out;
+ /*
+ * It is already all allocated
+ */
+ if (out_data_len == 0)
+ goto out;
+
+ buf = kzalloc(1024 * 1024, GFP_KERNEL);
+ if (buf == NULL) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ tmp_data = out_data;
+ while (len) {
+ /*
+ * The rest of the region is unmapped so write it all.
+ */
+ if (out_data_len == 0) {
+ rc = smb3_simple_fallocate_write_range(xid, tcon,
+ cfile, off, len, buf);
+ goto out;
+ }
+
+ if (out_data_len < sizeof(struct file_allocated_range_buffer)) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (off < le64_to_cpu(tmp_data->file_offset)) {
+ /*
+ * We are at a hole. Write until the end of the region
+ * or until the next allocated data,
+ * whichever comes next.
+ */
+ l = le64_to_cpu(tmp_data->file_offset) - off;
+ if (len < l)
+ l = len;
+ rc = smb3_simple_fallocate_write_range(xid, tcon,
+ cfile, off, l, buf);
+ if (rc)
+ goto out;
+ off = off + l;
+ len = len - l;
+ if (len == 0)
+ goto out;
+ }
+ /*
+ * We are at a section of allocated data, just skip forward
+ * until the end of the data or the end of the region
+ * we are supposed to fallocate, whichever comes first.
+ */
+ l = le64_to_cpu(tmp_data->length);
+ if (len < l)
+ l = len;
+ off += l;
+ len -= l;
+
+ tmp_data = &tmp_data[1];
+ out_data_len -= sizeof(struct file_allocated_range_buffer);
+ }
+
+ out:
+ kfree(out_data);
+ kfree(buf);
+ return rc;
+}
+
+
static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
loff_t off, loff_t len, bool keep_size)
{
@@ -3621,6 +3734,26 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
}
if ((keep_size == true) || (i_size_read(inode) >= off + len)) {
+ /*
+ * At this point, we are trying to fallocate an internal
+ * regions of a sparse file. Since smb2 does not have a
+ * fallocate command we have two otions on how to emulate this.
+ * We can either turn the entire file to become non-sparse
+ * which we only do if the fallocate is for virtually
+ * the whole file, or we can overwrite the region with zeroes
+ * using SMB2_write, which could be prohibitevly expensive
+ * if len is large.
+ */
+ /*
+ * We are only trying to fallocate a small region so
+ * just write it with zero.
+ */
+ if (len <= 1024 * 1024) {
+ rc = smb3_simple_fallocate_range(xid, tcon, cfile,
+ off, len);
+ goto out;
+ }
+
/*
* Check if falloc starts within first few pages of file
* and ends within a few pages of the end of file to
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 231/700] cifs: fix check of dfs interlinks
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (229 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 230/700] cifs: improve fallocate emulation Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 232/700] smb3: fix uninitialized value for port in witness protocol move Greg Kroah-Hartman
` (474 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Paulo Alcantara (SUSE),
Aurelien Aptel, Steve French, Sasha Levin
From: Paulo Alcantara <pc@cjr.nz>
[ Upstream commit 889c2a700799f3b6f82210925e1faf4a9b833c4a ]
Interlink is a special type of DFS link that resolves to a different
DFS domain-based namespace. To determine whether it is an interlink
or not, check if ReferralServers and StorageServers bits are set to 1
and 0 respectively in ReferralHeaderFlags, as specified in MS-DFSC
3.1.5.4.5 Determining Whether a Referral Response is an Interlink.
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/dfs_cache.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index 098b4bc8da59..d2d686ee10a3 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -25,8 +25,7 @@
#define CACHE_HTABLE_SIZE 32
#define CACHE_MAX_ENTRIES 64
-#define IS_INTERLINK_SET(v) ((v) & (DFSREF_REFERRAL_SERVER | \
- DFSREF_STORAGE_SERVER))
+#define IS_DFS_INTERLINK(v) (((v) & DFSREF_REFERRAL_SERVER) && !((v) & DFSREF_STORAGE_SERVER))
struct cache_dfs_tgt {
char *name;
@@ -170,7 +169,7 @@ static int dfscache_proc_show(struct seq_file *m, void *v)
"cache entry: path=%s,type=%s,ttl=%d,etime=%ld,hdr_flags=0x%x,ref_flags=0x%x,interlink=%s,path_consumed=%d,expired=%s\n",
ce->path, ce->srvtype == DFS_TYPE_ROOT ? "root" : "link",
ce->ttl, ce->etime.tv_nsec, ce->ref_flags, ce->hdr_flags,
- IS_INTERLINK_SET(ce->hdr_flags) ? "yes" : "no",
+ IS_DFS_INTERLINK(ce->hdr_flags) ? "yes" : "no",
ce->path_consumed, cache_entry_expired(ce) ? "yes" : "no");
list_for_each_entry(t, &ce->tlist, list) {
@@ -239,7 +238,7 @@ static inline void dump_ce(const struct cache_entry *ce)
ce->srvtype == DFS_TYPE_ROOT ? "root" : "link", ce->ttl,
ce->etime.tv_nsec,
ce->hdr_flags, ce->ref_flags,
- IS_INTERLINK_SET(ce->hdr_flags) ? "yes" : "no",
+ IS_DFS_INTERLINK(ce->hdr_flags) ? "yes" : "no",
ce->path_consumed,
cache_entry_expired(ce) ? "yes" : "no");
dump_tgts(ce);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 232/700] smb3: fix uninitialized value for port in witness protocol move
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (230 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 231/700] cifs: fix check of dfs interlinks Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 233/700] ACPI: EC: trust DSDT GPE for certain HP laptop Greg Kroah-Hartman
` (473 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Dan Carpenter,
Samuel Cabrero, Steve French, Sasha Levin
From: Steve French <stfrench@microsoft.com>
[ Upstream commit ff93b71a3eff25fe9d4364ef13b6e01d935600c6 ]
Although in practice this can not occur (since IPv4 and IPv6 are the
only two cases currently supported), it is cleaner to avoid uninitialized
variable warnings.
Addresses smatch warning:
fs/cifs/cifs_swn.c:468 cifs_swn_store_swn_addr() error: uninitialized symbol 'port'.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
CC: Samuel Cabrero <scabrero@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/cifs_swn.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/fs/cifs/cifs_swn.c b/fs/cifs/cifs_swn.c
index d829b8bf833e..93b47818c6c2 100644
--- a/fs/cifs/cifs_swn.c
+++ b/fs/cifs/cifs_swn.c
@@ -447,15 +447,13 @@ static int cifs_swn_store_swn_addr(const struct sockaddr_storage *new,
const struct sockaddr_storage *old,
struct sockaddr_storage *dst)
{
- __be16 port;
+ __be16 port = cpu_to_be16(CIFS_PORT);
if (old->ss_family == AF_INET) {
struct sockaddr_in *ipv4 = (struct sockaddr_in *)old;
port = ipv4->sin_port;
- }
-
- if (old->ss_family == AF_INET6) {
+ } else if (old->ss_family == AF_INET6) {
struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)old;
port = ipv6->sin6_port;
@@ -465,9 +463,7 @@ static int cifs_swn_store_swn_addr(const struct sockaddr_storage *new,
struct sockaddr_in *ipv4 = (struct sockaddr_in *)new;
ipv4->sin_port = port;
- }
-
- if (new->ss_family == AF_INET6) {
+ } else if (new->ss_family == AF_INET6) {
struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)new;
ipv6->sin6_port = port;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 233/700] ACPI: EC: trust DSDT GPE for certain HP laptop
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (231 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 232/700] smb3: fix uninitialized value for port in witness protocol move Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 234/700] clocksource: Retry clock read if long delays detected Greg Kroah-Hartman
` (472 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Rui, Rafael J. Wysocki,
Sasha Levin, Chen
From: Zhang Rui <rui.zhang@intel.com>
[ Upstream commit 4370cbf350dbaca984dbda9f9ce3fac45d6949d5 ]
On HP Pavilion Gaming Laptop 15-cx0xxx, the ECDT EC and DSDT EC share
the same port addresses but different GPEs. And the DSDT GPE is the
right one to use.
The current code duplicates DSDT EC with ECDT EC if the port addresses
are the same, and uses ECDT GPE as a result, which breaks this machine.
Introduce a new quirk for the HP laptop to trust the DSDT GPE,
and avoid duplicating even if the port addresses are the same.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209989
Reported-and-tested-by: Shao Fu, Chen <leo881003@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/ec.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index e8c5da2b964a..87c3b4a099b9 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -183,6 +183,7 @@ static struct workqueue_struct *ec_query_wq;
static int EC_FLAGS_CORRECT_ECDT; /* Needs ECDT port address correction */
static int EC_FLAGS_IGNORE_DSDT_GPE; /* Needs ECDT GPE as correction setting */
+static int EC_FLAGS_TRUST_DSDT_GPE; /* Needs DSDT GPE as correction setting */
static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */
/* --------------------------------------------------------------------------
@@ -1593,7 +1594,8 @@ static int acpi_ec_add(struct acpi_device *device)
}
if (boot_ec && ec->command_addr == boot_ec->command_addr &&
- ec->data_addr == boot_ec->data_addr) {
+ ec->data_addr == boot_ec->data_addr &&
+ !EC_FLAGS_TRUST_DSDT_GPE) {
/*
* Trust PNP0C09 namespace location rather than
* ECDT ID. But trust ECDT GPE rather than _GPE
@@ -1816,6 +1818,18 @@ static int ec_correct_ecdt(const struct dmi_system_id *id)
return 0;
}
+/*
+ * Some ECDTs contain wrong GPE setting, but they share the same port addresses
+ * with DSDT EC, don't duplicate the DSDT EC with ECDT EC in this case.
+ * https://bugzilla.kernel.org/show_bug.cgi?id=209989
+ */
+static int ec_honor_dsdt_gpe(const struct dmi_system_id *id)
+{
+ pr_debug("Detected system needing DSDT GPE setting.\n");
+ EC_FLAGS_TRUST_DSDT_GPE = 1;
+ return 0;
+}
+
/*
* Some DSDTs contain wrong GPE setting.
* Asus FX502VD/VE, GL702VMK, X550VXK, X580VD
@@ -1870,6 +1884,11 @@ static const struct dmi_system_id ec_dmi_table[] __initconst = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_MATCH(DMI_PRODUCT_NAME, "X580VD"),}, NULL},
{
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=209989 */
+ ec_honor_dsdt_gpe, "HP Pavilion Gaming Laptop 15-cx0xxx", {
+ DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Gaming Laptop 15-cx0xxx"),}, NULL},
+ {
ec_clear_on_resume, "Samsung hardware", {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD.")}, NULL},
{},
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 234/700] clocksource: Retry clock read if long delays detected
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (232 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 233/700] ACPI: EC: trust DSDT GPE for certain HP laptop Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 235/700] clocksource: Check per-CPU clock synchronization when marked unstable Greg Kroah-Hartman
` (471 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chris Mason, Paul E. McKenney,
Thomas Gleixner, Feng Tang, Sasha Levin
From: Paul E. McKenney <paulmck@kernel.org>
[ Upstream commit db3a34e17433de2390eb80d436970edcebd0ca3e ]
When the clocksource watchdog marks a clock as unstable, this might be due
to that clock being unstable or it might be due to delays that happen to
occur between the reads of the two clocks. Yes, interrupts are disabled
across those two reads, but there are no shortage of things that can delay
interrupts-disabled regions of code ranging from SMI handlers to vCPU
preemption. It would be good to have some indication as to why the clock
was marked unstable.
Therefore, re-read the watchdog clock on either side of the read from the
clock under test. If the watchdog clock shows an excessive time delta
between its pair of reads, the reads are retried.
The maximum number of retries is specified by a new kernel boot parameter
clocksource.max_cswd_read_retries, which defaults to three, that is, up to
four reads, one initial and up to three retries. If more than one retry
was required, a message is printed on the console (the occasional single
retry is expected behavior, especially in guest OSes). If the maximum
number of retries is exceeded, the clock under test will be marked
unstable. However, the probability of this happening due to various sorts
of delays is quite small. In addition, the reason (clock-read delays) for
the unstable marking will be apparent.
Reported-by: Chris Mason <clm@fb.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Feng Tang <feng.tang@intel.com>
Link: https://lore.kernel.org/r/20210527190124.440372-1-paulmck@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../admin-guide/kernel-parameters.txt | 6 +++
kernel/time/clocksource.c | 53 ++++++++++++++++---
2 files changed, 53 insertions(+), 6 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 835f810f2f26..c08e174e6ff4 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -583,6 +583,12 @@
loops can be debugged more effectively on production
systems.
+ clocksource.max_cswd_read_retries= [KNL]
+ Number of clocksource_watchdog() retries due to
+ external delays before the clock will be marked
+ unstable. Defaults to three retries, that is,
+ four attempts to read the clock under test.
+
clearcpuid=BITNUM[,BITNUM...] [X86]
Disable CPUID feature X for the kernel. See
arch/x86/include/asm/cpufeatures.h for the valid bit
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index cce484a2cc7c..49b25f1cc344 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -124,6 +124,13 @@ static void __clocksource_change_rating(struct clocksource *cs, int rating);
#define WATCHDOG_INTERVAL (HZ >> 1)
#define WATCHDOG_THRESHOLD (NSEC_PER_SEC >> 4)
+/*
+ * Maximum permissible delay between two readouts of the watchdog
+ * clocksource surrounding a read of the clocksource being validated.
+ * This delay could be due to SMIs, NMIs, or to VCPU preemptions.
+ */
+#define WATCHDOG_MAX_SKEW (100 * NSEC_PER_USEC)
+
static void clocksource_watchdog_work(struct work_struct *work)
{
/*
@@ -184,12 +191,45 @@ void clocksource_mark_unstable(struct clocksource *cs)
spin_unlock_irqrestore(&watchdog_lock, flags);
}
+static ulong max_cswd_read_retries = 3;
+module_param(max_cswd_read_retries, ulong, 0644);
+
+static bool cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
+{
+ unsigned int nretries;
+ u64 wd_end, wd_delta;
+ int64_t wd_delay;
+
+ for (nretries = 0; nretries <= max_cswd_read_retries; nretries++) {
+ local_irq_disable();
+ *wdnow = watchdog->read(watchdog);
+ *csnow = cs->read(cs);
+ wd_end = watchdog->read(watchdog);
+ local_irq_enable();
+
+ wd_delta = clocksource_delta(wd_end, *wdnow, watchdog->mask);
+ wd_delay = clocksource_cyc2ns(wd_delta, watchdog->mult,
+ watchdog->shift);
+ if (wd_delay <= WATCHDOG_MAX_SKEW) {
+ if (nretries > 1 || nretries >= max_cswd_read_retries) {
+ pr_warn("timekeeping watchdog on CPU%d: %s retried %d times before success\n",
+ smp_processor_id(), watchdog->name, nretries);
+ }
+ return true;
+ }
+ }
+
+ pr_warn("timekeeping watchdog on CPU%d: %s read-back delay of %lldns, attempt %d, marking unstable\n",
+ smp_processor_id(), watchdog->name, wd_delay, nretries);
+ return false;
+}
+
static void clocksource_watchdog(struct timer_list *unused)
{
- struct clocksource *cs;
u64 csnow, wdnow, cslast, wdlast, delta;
- int64_t wd_nsec, cs_nsec;
int next_cpu, reset_pending;
+ int64_t wd_nsec, cs_nsec;
+ struct clocksource *cs;
spin_lock(&watchdog_lock);
if (!watchdog_running)
@@ -206,10 +246,11 @@ static void clocksource_watchdog(struct timer_list *unused)
continue;
}
- local_irq_disable();
- csnow = cs->read(cs);
- wdnow = watchdog->read(watchdog);
- local_irq_enable();
+ if (!cs_watchdog_read(cs, &csnow, &wdnow)) {
+ /* Clock readout unreliable, so give it up. */
+ __clocksource_unstable(cs);
+ continue;
+ }
/* Clocksource initialized ? */
if (!(cs->flags & CLOCK_SOURCE_WATCHDOG) ||
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 235/700] clocksource: Check per-CPU clock synchronization when marked unstable
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (233 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 234/700] clocksource: Retry clock read if long delays detected Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 236/700] tpm_tis_spi: add missing SPI device ID entries Greg Kroah-Hartman
` (470 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chris Mason, Paul E. McKenney,
Thomas Gleixner, Feng Tang, Sasha Levin
From: Paul E. McKenney <paulmck@kernel.org>
[ Upstream commit 7560c02bdffb7c52d1457fa551b9e745d4b9e754 ]
Some sorts of per-CPU clock sources have a history of going out of
synchronization with each other. However, this problem has purportedy been
solved in the past ten years. Except that it is all too possible that the
problem has instead simply been made less likely, which might mean that
some of the occasional "Marking clocksource 'tsc' as unstable" messages
might be due to desynchronization. How would anyone know?
Therefore apply CPU-to-CPU synchronization checking to newly unstable
clocksource that are marked with the new CLOCK_SOURCE_VERIFY_PERCPU flag.
Lists of desynchronized CPUs are printed, with the caveat that if it
is the reporting CPU that is itself desynchronized, it will appear that
all the other clocks are wrong. Just like in real life.
Reported-by: Chris Mason <clm@fb.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Feng Tang <feng.tang@intel.com>
Link: https://lore.kernel.org/r/20210527190124.440372-2-paulmck@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kernel/tsc.c | 3 +-
include/linux/clocksource.h | 2 +-
kernel/time/clocksource.c | 60 +++++++++++++++++++++++++++++++++++++
3 files changed, 63 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index f70dffc2771f..56289170753c 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1151,7 +1151,8 @@ static struct clocksource clocksource_tsc = {
.mask = CLOCKSOURCE_MASK(64),
.flags = CLOCK_SOURCE_IS_CONTINUOUS |
CLOCK_SOURCE_VALID_FOR_HRES |
- CLOCK_SOURCE_MUST_VERIFY,
+ CLOCK_SOURCE_MUST_VERIFY |
+ CLOCK_SOURCE_VERIFY_PERCPU,
.vdso_clock_mode = VDSO_CLOCKMODE_TSC,
.enable = tsc_cs_enable,
.resume = tsc_resume,
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 86d143db6523..83a3ebff7456 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -131,7 +131,7 @@ struct clocksource {
#define CLOCK_SOURCE_UNSTABLE 0x40
#define CLOCK_SOURCE_SUSPEND_NONSTOP 0x80
#define CLOCK_SOURCE_RESELECT 0x100
-
+#define CLOCK_SOURCE_VERIFY_PERCPU 0x200
/* simplify initialization of mask field */
#define CLOCKSOURCE_MASK(bits) GENMASK_ULL((bits) - 1, 0)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 49b25f1cc344..242997b71f2d 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -224,6 +224,60 @@ static bool cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
return false;
}
+static u64 csnow_mid;
+static cpumask_t cpus_ahead;
+static cpumask_t cpus_behind;
+
+static void clocksource_verify_one_cpu(void *csin)
+{
+ struct clocksource *cs = (struct clocksource *)csin;
+
+ csnow_mid = cs->read(cs);
+}
+
+static void clocksource_verify_percpu(struct clocksource *cs)
+{
+ int64_t cs_nsec, cs_nsec_max = 0, cs_nsec_min = LLONG_MAX;
+ u64 csnow_begin, csnow_end;
+ int cpu, testcpu;
+ s64 delta;
+
+ cpumask_clear(&cpus_ahead);
+ cpumask_clear(&cpus_behind);
+ preempt_disable();
+ testcpu = smp_processor_id();
+ pr_warn("Checking clocksource %s synchronization from CPU %d.\n", cs->name, testcpu);
+ for_each_online_cpu(cpu) {
+ if (cpu == testcpu)
+ continue;
+ csnow_begin = cs->read(cs);
+ smp_call_function_single(cpu, clocksource_verify_one_cpu, cs, 1);
+ csnow_end = cs->read(cs);
+ delta = (s64)((csnow_mid - csnow_begin) & cs->mask);
+ if (delta < 0)
+ cpumask_set_cpu(cpu, &cpus_behind);
+ delta = (csnow_end - csnow_mid) & cs->mask;
+ if (delta < 0)
+ cpumask_set_cpu(cpu, &cpus_ahead);
+ delta = clocksource_delta(csnow_end, csnow_begin, cs->mask);
+ cs_nsec = clocksource_cyc2ns(delta, cs->mult, cs->shift);
+ if (cs_nsec > cs_nsec_max)
+ cs_nsec_max = cs_nsec;
+ if (cs_nsec < cs_nsec_min)
+ cs_nsec_min = cs_nsec;
+ }
+ preempt_enable();
+ if (!cpumask_empty(&cpus_ahead))
+ pr_warn(" CPUs %*pbl ahead of CPU %d for clocksource %s.\n",
+ cpumask_pr_args(&cpus_ahead), testcpu, cs->name);
+ if (!cpumask_empty(&cpus_behind))
+ pr_warn(" CPUs %*pbl behind CPU %d for clocksource %s.\n",
+ cpumask_pr_args(&cpus_behind), testcpu, cs->name);
+ if (!cpumask_empty(&cpus_ahead) || !cpumask_empty(&cpus_behind))
+ pr_warn(" CPU %d check durations %lldns - %lldns for clocksource %s.\n",
+ testcpu, cs_nsec_min, cs_nsec_max, cs->name);
+}
+
static void clocksource_watchdog(struct timer_list *unused)
{
u64 csnow, wdnow, cslast, wdlast, delta;
@@ -448,6 +502,12 @@ static int __clocksource_watchdog_kthread(void)
unsigned long flags;
int select = 0;
+ /* Do any required per-CPU skew verification. */
+ if (curr_clocksource &&
+ curr_clocksource->flags & CLOCK_SOURCE_UNSTABLE &&
+ curr_clocksource->flags & CLOCK_SOURCE_VERIFY_PERCPU)
+ clocksource_verify_percpu(curr_clocksource);
+
spin_lock_irqsave(&watchdog_lock, flags);
list_for_each_entry_safe(cs, tmp, &watchdog_list, wd_list) {
if (cs->flags & CLOCK_SOURCE_UNSTABLE) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 236/700] tpm_tis_spi: add missing SPI device ID entries
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (234 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 235/700] clocksource: Check per-CPU clock synchronization when marked unstable Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 237/700] ACPI: tables: Add custom DSDT file as makefile prerequisite Greg Kroah-Hartman
` (469 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Wellbrock,
Javier Martinez Canillas, Peter Robinson, Jarkko Sakkinen,
Sasha Levin
From: Javier Martinez Canillas <javierm@redhat.com>
[ Upstream commit c46ed2281bbe4b84e6f3d4bdfb0e4e9ab813fa9d ]
The SPI core always reports a "MODALIAS=spi:<foo>", even if the device was
registered via OF. This means that this module won't auto-load if a DT has
for example has a node with a compatible "infineon,slb9670" string.
In that case kmod will expect a "MODALIAS=of:N*T*Cinfineon,slb9670" uevent
but instead will get a "MODALIAS=spi:slb9670", which is not present in the
kernel module aliases:
$ modinfo drivers/char/tpm/tpm_tis_spi.ko | grep alias
alias: of:N*T*Cgoogle,cr50C*
alias: of:N*T*Cgoogle,cr50
alias: of:N*T*Ctcg,tpm_tis-spiC*
alias: of:N*T*Ctcg,tpm_tis-spi
alias: of:N*T*Cinfineon,slb9670C*
alias: of:N*T*Cinfineon,slb9670
alias: of:N*T*Cst,st33htpm-spiC*
alias: of:N*T*Cst,st33htpm-spi
alias: spi:cr50
alias: spi:tpm_tis_spi
alias: acpi*:SMO0768:*
To workaround this issue, add in the SPI device ID table all the entries
that are present in the OF device ID table.
Reported-by: Alexander Wellbrock <a.wellbrock@mailbox.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/tpm/tpm_tis_spi_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/char/tpm/tpm_tis_spi_main.c b/drivers/char/tpm/tpm_tis_spi_main.c
index 3856f6ebcb34..de4209003a44 100644
--- a/drivers/char/tpm/tpm_tis_spi_main.c
+++ b/drivers/char/tpm/tpm_tis_spi_main.c
@@ -260,6 +260,8 @@ static int tpm_tis_spi_remove(struct spi_device *dev)
}
static const struct spi_device_id tpm_tis_spi_id[] = {
+ { "st33htpm-spi", (unsigned long)tpm_tis_spi_probe },
+ { "slb9670", (unsigned long)tpm_tis_spi_probe },
{ "tpm_tis_spi", (unsigned long)tpm_tis_spi_probe },
{ "cr50", (unsigned long)cr50_spi_probe },
{}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 237/700] ACPI: tables: Add custom DSDT file as makefile prerequisite
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (235 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 236/700] tpm_tis_spi: add missing SPI device ID entries Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 238/700] smb3: fix possible access to uninitialized pointer to DACL Greg Kroah-Hartman
` (468 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Richard Fitzgerald,
Rafael J. Wysocki, Sasha Levin
From: Richard Fitzgerald <rf@opensource.cirrus.com>
[ Upstream commit d1059c1b1146870c52f3dac12cb7b6cbf39ed27f ]
A custom DSDT file is mostly used during development or debugging,
and in that case it is quite likely to want to rebuild the kernel
after changing ONLY the content of the DSDT.
This patch adds the custom DSDT as a prerequisite to tables.o
to ensure a rebuild if the DSDT file is updated. Make will merge
the prerequisites from multiple rules for the same target.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/Makefile | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 700b41adf2db..9aa82d527272 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -8,6 +8,11 @@ ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
#
# ACPI Boot-Time Table Parsing
#
+ifeq ($(CONFIG_ACPI_CUSTOM_DSDT),y)
+tables.o: $(src)/../../include/$(subst $\",,$(CONFIG_ACPI_CUSTOM_DSDT_FILE)) ;
+
+endif
+
obj-$(CONFIG_ACPI) += tables.o
obj-$(CONFIG_X86) += blacklist.o
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 238/700] smb3: fix possible access to uninitialized pointer to DACL
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (236 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 237/700] ACPI: tables: Add custom DSDT file as makefile prerequisite Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 239/700] HID: wacom: Correct base usage for capacitive ExpressKey status bits Greg Kroah-Hartman
` (467 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Steve French, Sasha Levin
From: Steve French <stfrench@microsoft.com>
[ Upstream commit a5628263a9f8d47d9a1548fe9d5d75ba4423a735 ]
dacl_ptr can be null so we must check for it everywhere it is
used in build_sec_desc.
Addresses-Coverity: 1475598 ("Explicit null dereference")
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/cifsacl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index d178cf85e926..b80b6ba232aa 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -1310,7 +1310,7 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
ndacl_ptr = (struct cifs_acl *)((char *)pnntsd + ndacloffset);
ndacl_ptr->revision =
dacloffset ? dacl_ptr->revision : cpu_to_le16(ACL_REVISION);
- ndacl_ptr->num_aces = dacl_ptr->num_aces;
+ ndacl_ptr->num_aces = dacl_ptr ? dacl_ptr->num_aces : 0;
if (uid_valid(uid)) { /* chown */
uid_t id;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 239/700] HID: wacom: Correct base usage for capacitive ExpressKey status bits
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (237 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 238/700] smb3: fix possible access to uninitialized pointer to DACL Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 240/700] cifs: fix missing spinlock around update to ses->status Greg Kroah-Hartman
` (466 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jason Gerecke, Jiri Kosina, Sasha Levin
From: Jason Gerecke <killertofu@gmail.com>
[ Upstream commit 424d8237945c6c448c8b3f23885d464fb5685c97 ]
The capacitive status of ExpressKeys is reported with usages beginning
at 0x940, not 0x950. Bring our driver into alignment with reality.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/wacom_wac.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 195910dd2154..e3835407e8d2 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -122,7 +122,7 @@
#define WACOM_HID_WD_TOUCHONOFF (WACOM_HID_UP_WACOMDIGITIZER | 0x0454)
#define WACOM_HID_WD_BATTERY_LEVEL (WACOM_HID_UP_WACOMDIGITIZER | 0x043b)
#define WACOM_HID_WD_EXPRESSKEY00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
-#define WACOM_HID_WD_EXPRESSKEYCAP00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0950)
+#define WACOM_HID_WD_EXPRESSKEYCAP00 (WACOM_HID_UP_WACOMDIGITIZER | 0x0940)
#define WACOM_HID_WD_MODE_CHANGE (WACOM_HID_UP_WACOMDIGITIZER | 0x0980)
#define WACOM_HID_WD_MUTE_DEVICE (WACOM_HID_UP_WACOMDIGITIZER | 0x0981)
#define WACOM_HID_WD_CONTROLPANEL (WACOM_HID_UP_WACOMDIGITIZER | 0x0982)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 240/700] cifs: fix missing spinlock around update to ses->status
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (238 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 239/700] HID: wacom: Correct base usage for capacitive ExpressKey status bits Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 241/700] bfq: Remove merged request already in bfq_requests_merged() Greg Kroah-Hartman
` (465 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Steve French, Sasha Levin
From: Steve French <stfrench@microsoft.com>
[ Upstream commit 0060a4f28a9ef45ae8163c0805e944a2b1546762 ]
In the other places where we update ses->status we protect the
updates via GlobalMid_Lock. So to be consistent add the same
locking around it in cifs_put_smb_ses where it was missing.
Addresses-Coverity: 1268904 ("Data race condition")
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/cifsglob.h | 3 ++-
fs/cifs/connect.c | 5 ++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index ec824ab8c5ca..723b97002d8d 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -896,7 +896,7 @@ struct cifs_ses {
struct mutex session_mutex;
struct TCP_Server_Info *server; /* pointer to server info */
int ses_count; /* reference counter */
- enum statusEnum status;
+ enum statusEnum status; /* updates protected by GlobalMid_Lock */
unsigned overrideSecFlg; /* if non-zero override global sec flags */
char *serverOS; /* name of operating system underlying server */
char *serverNOS; /* name of network operating system of server */
@@ -1783,6 +1783,7 @@ require use of the stronger protocol */
* list operations on pending_mid_q and oplockQ
* updates to XID counters, multiplex id and SMB sequence numbers
* list operations on global DnotifyReqList
+ * updates to ses->status
* tcp_ses_lock protects:
* list operations on tcp and SMB session lists
* tcon->open_file_lock protects the list of open files hanging off the tcon
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 3d62d52d730b..09a3939f25bf 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1639,9 +1639,12 @@ void cifs_put_smb_ses(struct cifs_ses *ses)
spin_unlock(&cifs_tcp_ses_lock);
return;
}
+ spin_unlock(&cifs_tcp_ses_lock);
+
+ spin_lock(&GlobalMid_Lock);
if (ses->status == CifsGood)
ses->status = CifsExiting;
- spin_unlock(&cifs_tcp_ses_lock);
+ spin_unlock(&GlobalMid_Lock);
cifs_free_ipc(ses);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 241/700] bfq: Remove merged request already in bfq_requests_merged()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (239 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 240/700] cifs: fix missing spinlock around update to ses->status Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 242/700] mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device Greg Kroah-Hartman
` (464 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Paolo Valente, Jan Kara, Jens Axboe,
Sasha Levin
From: Jan Kara <jack@suse.cz>
[ Upstream commit a921c655f2033dd1ce1379128efe881dda23ea37 ]
Currently, bfq does very little in bfq_requests_merged() and handles all
the request cleanup in bfq_finish_requeue_request() called from
blk_mq_free_request(). That is currently safe only because
blk_mq_free_request() is called shortly after bfq_requests_merged()
while bfqd->lock is still held. However to fix a lock inversion between
bfqd->lock and ioc->lock, we need to call blk_mq_free_request() after
dropping bfqd->lock. That would mean that already merged request could
be seen by other processes inside bfq queues and possibly dispatched to
the device which is wrong. So move cleanup of the request from
bfq_finish_requeue_request() to bfq_requests_merged().
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210623093634.27879-2-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/bfq-iosched.c | 41 +++++++++++++----------------------------
1 file changed, 13 insertions(+), 28 deletions(-)
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index bc319931d2b3..9a180c4b9605 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -2376,7 +2376,7 @@ static void bfq_requests_merged(struct request_queue *q, struct request *rq,
*next_bfqq = bfq_init_rq(next);
if (!bfqq)
- return;
+ goto remove;
/*
* If next and rq belong to the same bfq_queue and next is older
@@ -2399,6 +2399,14 @@ static void bfq_requests_merged(struct request_queue *q, struct request *rq,
bfqq->next_rq = rq;
bfqg_stats_update_io_merged(bfqq_group(bfqq), next->cmd_flags);
+remove:
+ /* Merged request may be in the IO scheduler. Remove it. */
+ if (!RB_EMPTY_NODE(&next->rb_node)) {
+ bfq_remove_request(next->q, next);
+ if (next_bfqq)
+ bfqg_stats_update_io_remove(bfqq_group(next_bfqq),
+ next->cmd_flags);
+ }
}
/* Must be called with bfqq != NULL */
@@ -6015,6 +6023,7 @@ static void bfq_finish_requeue_request(struct request *rq)
{
struct bfq_queue *bfqq = RQ_BFQQ(rq);
struct bfq_data *bfqd;
+ unsigned long flags;
/*
* rq either is not associated with any icq, or is an already
@@ -6032,39 +6041,15 @@ static void bfq_finish_requeue_request(struct request *rq)
rq->io_start_time_ns,
rq->cmd_flags);
+ spin_lock_irqsave(&bfqd->lock, flags);
if (likely(rq->rq_flags & RQF_STARTED)) {
- unsigned long flags;
-
- spin_lock_irqsave(&bfqd->lock, flags);
-
if (rq == bfqd->waited_rq)
bfq_update_inject_limit(bfqd, bfqq);
bfq_completed_request(bfqq, bfqd);
- bfq_finish_requeue_request_body(bfqq);
-
- spin_unlock_irqrestore(&bfqd->lock, flags);
- } else {
- /*
- * Request rq may be still/already in the scheduler,
- * in which case we need to remove it (this should
- * never happen in case of requeue). And we cannot
- * defer such a check and removal, to avoid
- * inconsistencies in the time interval from the end
- * of this function to the start of the deferred work.
- * This situation seems to occur only in process
- * context, as a consequence of a merge. In the
- * current version of the code, this implies that the
- * lock is held.
- */
-
- if (!RB_EMPTY_NODE(&rq->rb_node)) {
- bfq_remove_request(rq->q, rq);
- bfqg_stats_update_io_remove(bfqq_group(bfqq),
- rq->cmd_flags);
- }
- bfq_finish_requeue_request_body(bfqq);
}
+ bfq_finish_requeue_request_body(bfqq);
+ spin_unlock_irqrestore(&bfqd->lock, flags);
/*
* Reset private fields. In case of a requeue, this allows
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 242/700] mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (240 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 241/700] bfq: Remove merged request already in bfq_requests_merged() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 243/700] block: fix discard request merge Greg Kroah-Hartman
` (463 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shawn Guo, Bjorn Andersson,
Jassi Brar, Sasha Levin
From: Shawn Guo <shawn.guo@linaro.org>
[ Upstream commit 96e39e95c01283ff5695dafe659df88ada802159 ]
In adding APCS clock support for MSM8939, the second clock registration
fails due to duplicate device name like below.
[ 0.519657] sysfs: cannot create duplicate filename '/bus/platform/devices/qcom-apcs-msm8916-clk'
...
[ 0.661158] qcom_apcs_ipc b111000.mailbox: failed to register APCS clk
This is because MSM8939 has 3 APCS instances for Cluster0 (little cores),
Cluster1 (big cores) and CCI (Cache Coherent Interconnect). Although
only APCS of Cluster0 and Cluster1 have IPC bits, each of 3 APCS has
A53PLL clock control bits. That said, 3 'qcom-apcs-msm8916-clk' devices
need to be registered to instantiate all 3 clocks. Use PLATFORM_DEVID_AUTO
rather than PLATFORM_DEVID_NONE for platform_device_register_data() call
to fix the issue above.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mailbox/qcom-apcs-ipc-mailbox.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
index f25324d03842..15236d729625 100644
--- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c
+++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
@@ -132,7 +132,7 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev)
if (apcs_data->clk_name) {
apcs->clk = platform_device_register_data(&pdev->dev,
apcs_data->clk_name,
- PLATFORM_DEVID_NONE,
+ PLATFORM_DEVID_AUTO,
NULL, 0);
if (IS_ERR(apcs->clk))
dev_err(&pdev->dev, "failed to register APCS clk\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 243/700] block: fix discard request merge
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (241 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 242/700] mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 244/700] kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync() Greg Kroah-Hartman
` (462 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christoph Hellwig, Wang Shanker,
Ming Lei, Jens Axboe, Sasha Levin
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit 2705dfb2094777e405e065105e307074af8965c1 ]
ll_new_hw_segment() is reached only in case of single range discard
merge, and we don't have max discard segment size limit actually, so
it is wrong to run the following check:
if (req->nr_phys_segments + nr_phys_segs > blk_rq_get_max_segments(req))
it may be always false since req->nr_phys_segments is initialized as
one, and bio's segment count is still 1, blk_rq_get_max_segments(reg)
is 1 too.
Fix the issue by not doing the check and bypassing the calculation of
discard request's nr_phys_segments.
Based on analysis from Wang Shanker.
Cc: Christoph Hellwig <hch@lst.de>
Reported-by: Wang Shanker <shankerwangmiao@gmail.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210628023312.1903255-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-merge.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 4d97fb6dd226..bcdff1879c34 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -559,10 +559,14 @@ static inline unsigned int blk_rq_get_max_segments(struct request *rq)
static inline int ll_new_hw_segment(struct request *req, struct bio *bio,
unsigned int nr_phys_segs)
{
- if (req->nr_phys_segments + nr_phys_segs > blk_rq_get_max_segments(req))
+ if (blk_integrity_merge_bio(req->q, req, bio) == false)
goto no_merge;
- if (blk_integrity_merge_bio(req->q, req, bio) == false)
+ /* discard request merge won't add new segment */
+ if (req_op(req) == REQ_OP_DISCARD)
+ return 1;
+
+ if (req->nr_phys_segments + nr_phys_segs > blk_rq_get_max_segments(req))
goto no_merge;
/*
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 244/700] kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (242 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 243/700] block: fix discard request merge Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 245/700] ia64: mca_drv: fix incorrect array size calculation Greg Kroah-Hartman
` (461 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Petr Mladek, Oleg Nesterov,
Nathan Chancellor, Nick Desaulniers, Tejun Heo, Minchan Kim,
jenhaochen, Martin Liu, Andrew Morton, Linus Torvalds,
Sasha Levin
From: Petr Mladek <pmladek@suse.com>
[ Upstream commit d71ba1649fa3c464c51ec7163e4b817345bff2c7 ]
kthread_mod_delayed_work() might race with
kthread_cancel_delayed_work_sync() or another kthread_mod_delayed_work()
call. The function lets the other operation win when it sees
work->canceling counter set. And it returns @false.
But it should return @true as it is done by the related workqueue API, see
mod_delayed_work_on().
The reason is that the return value might be used for reference counting.
It has to distinguish the case when the number of queued works has changed
or stayed the same.
The change is safe. kthread_mod_delayed_work() return value is not
checked anywhere at the moment.
Link: https://lore.kernel.org/r/20210521163526.GA17916@redhat.com
Link: https://lkml.kernel.org/r/20210610133051.15337-4-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Minchan Kim <minchan@google.com>
Cc: <jenhaochen@google.com>
Cc: Martin Liu <liumartin@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/kthread.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/kernel/kthread.c b/kernel/kthread.c
index e8da89c714f5..44f89a602b00 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -1161,14 +1161,14 @@ static bool __kthread_cancel_work(struct kthread_work *work)
* modify @dwork's timer so that it expires after @delay. If @delay is zero,
* @work is guaranteed to be queued immediately.
*
- * Return: %true if @dwork was pending and its timer was modified,
- * %false otherwise.
+ * Return: %false if @dwork was idle and queued, %true otherwise.
*
* A special case is when the work is being canceled in parallel.
* It might be caused either by the real kthread_cancel_delayed_work_sync()
* or yet another kthread_mod_delayed_work() call. We let the other command
- * win and return %false here. The caller is supposed to synchronize these
- * operations a reasonable way.
+ * win and return %true here. The return value can be used for reference
+ * counting and the number of queued works stays the same. Anyway, the caller
+ * is supposed to synchronize these operations a reasonable way.
*
* This function is safe to call from any context including IRQ handler.
* See __kthread_cancel_work() and kthread_delayed_work_timer_fn()
@@ -1180,13 +1180,15 @@ bool kthread_mod_delayed_work(struct kthread_worker *worker,
{
struct kthread_work *work = &dwork->work;
unsigned long flags;
- int ret = false;
+ int ret;
raw_spin_lock_irqsave(&worker->lock, flags);
/* Do not bother with canceling when never queued. */
- if (!work->worker)
+ if (!work->worker) {
+ ret = false;
goto fast_queue;
+ }
/* Work must not be used with >1 worker, see kthread_queue_work() */
WARN_ON_ONCE(work->worker != worker);
@@ -1204,8 +1206,11 @@ bool kthread_mod_delayed_work(struct kthread_worker *worker,
* be used for reference counting.
*/
kthread_cancel_delayed_work_timer(work, &flags);
- if (work->canceling)
+ if (work->canceling) {
+ /* The number of works in the queue does not change. */
+ ret = true;
goto out;
+ }
ret = __kthread_cancel_work(work);
fast_queue:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 245/700] ia64: mca_drv: fix incorrect array size calculation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (243 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 244/700] kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 246/700] writeback, cgroup: increment isw_nr_in_flight before grabbing an inode Greg Kroah-Hartman
` (460 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Masahiro Yamada,
Randy Dunlap, Andrew Morton, Linus Torvalds, Sasha Levin
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit c5f320ff8a79501bb59338278336ec43acb9d7e2 ]
gcc points out a mistake in the mca driver that goes back to before the
git history:
arch/ia64/kernel/mca_drv.c: In function 'init_record_index_pools':
arch/ia64/kernel/mca_drv.c:346:54: error: expression does not compute the number of elements in this array; element typ
e is 'int', not 'size_t' {aka 'long unsigned int'} [-Werror=sizeof-array-div]
346 | for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++)
| ^
This is the same as sizeof(size_t), which is two shorter than the actual
array. Use the ARRAY_SIZE() macro to get the correct calculation instead.
Link: https://lkml.kernel.org/r/20210514214123.875971-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/ia64/kernel/mca_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index 36a69b4e6169..5bfc79be4cef 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -343,7 +343,7 @@ init_record_index_pools(void)
/* - 2 - */
sect_min_size = sal_log_sect_min_sizes[0];
- for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++)
+ for (i = 1; i < ARRAY_SIZE(sal_log_sect_min_sizes); i++)
if (sect_min_size > sal_log_sect_min_sizes[i])
sect_min_size = sal_log_sect_min_sizes[i];
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 246/700] writeback, cgroup: increment isw_nr_in_flight before grabbing an inode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (244 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 245/700] ia64: mca_drv: fix incorrect array size calculation Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 247/700] mm: define default MAX_PTRS_PER_* in include/pgtable.h Greg Kroah-Hartman
` (459 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Roman Gushchin, Jan Kara, Jan Kara,
Alexander Viro, Dave Chinner, Dennis Zhou, Tejun Heo, Jens Axboe,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Roman Gushchin <guro@fb.com>
[ Upstream commit 8826ee4fe75051f8cbfa5d4a9aa70565938e724c ]
isw_nr_in_flight is used to determine whether the inode switch queue
should be flushed from the umount path. Currently it's increased after
grabbing an inode and even scheduling the switch work. It means the
umount path can walk past cleanup_offline_cgwb() with active inode
references, which can result in a "Busy inodes after unmount." message and
use-after-free issues (with inode->i_sb which gets freed).
Fix it by incrementing isw_nr_in_flight before doing anything with the
inode and decrementing in the case when switching wasn't scheduled.
The problem hasn't yet been seen in the real life and was discovered by
Jan Kara by looking into the code.
Link: https://lkml.kernel.org/r/20210608230225.2078447-4-guro@fb.com
Signed-off-by: Roman Gushchin <guro@fb.com>
Suggested-by: Jan Kara <jack@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/fs-writeback.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 7c46d1588a19..d684f541af48 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -505,6 +505,8 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
if (!isw)
return;
+ atomic_inc(&isw_nr_in_flight);
+
/* find and pin the new wb */
rcu_read_lock();
memcg_css = css_from_id(new_wb_id, &memory_cgrp_subsys);
@@ -535,11 +537,10 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
* Let's continue after I_WB_SWITCH is guaranteed to be visible.
*/
call_rcu(&isw->rcu_head, inode_switch_wbs_rcu_fn);
-
- atomic_inc(&isw_nr_in_flight);
return;
out_free:
+ atomic_dec(&isw_nr_in_flight);
if (isw->new_wb)
wb_put(isw->new_wb);
kfree(isw);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 247/700] mm: define default MAX_PTRS_PER_* in include/pgtable.h
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (245 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 246/700] writeback, cgroup: increment isw_nr_in_flight before grabbing an inode Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 248/700] spi: Allow to have all native CSs in use along with GPIOs Greg Kroah-Hartman
` (458 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Daniel Axtens, Andrey Konovalov,
Christophe Leroy, Marco Elver, Aneesh Kumar K.V, Balbir Singh,
Alexander Potapenko, Andrey Ryabinin, Dmitry Vyukov,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Daniel Axtens <dja@axtens.net>
[ Upstream commit c0f8aa4fa815daacb6eca52cae04820d6aecb7c2 ]
Commit c65e774fb3f6 ("x86/mm: Make PGDIR_SHIFT and PTRS_PER_P4D variable")
made PTRS_PER_P4D variable on x86 and introduced MAX_PTRS_PER_P4D as a
constant for cases which need a compile-time constant (e.g. fixed-size
arrays).
powerpc likewise has boot-time selectable MMU features which can cause
other mm "constants" to vary. For KASAN, we have some static
PTE/PMD/PUD/P4D arrays so we need compile-time maximums for all these
constants. Extend the MAX_PTRS_PER_ idiom, and place default definitions
in include/pgtable.h. These define MAX_PTRS_PER_x to be PTRS_PER_x unless
an architecture has defined MAX_PTRS_PER_x in its arch headers.
Clean up pgtable-nop4d.h and s390's MAX_PTRS_PER_P4D definitions while
we're at it: both can just pick up the default now.
Link: https://lkml.kernel.org/r/20210624034050.511391-4-dja@axtens.net
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/include/asm/pgtable.h | 2 --
include/asm-generic/pgtable-nop4d.h | 1 -
include/linux/pgtable.h | 22 ++++++++++++++++++++++
3 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 29c7ecd5ad1d..b38f7b781564 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -344,8 +344,6 @@ static inline int is_module_addr(void *addr)
#define PTRS_PER_P4D _CRST_ENTRIES
#define PTRS_PER_PGD _CRST_ENTRIES
-#define MAX_PTRS_PER_P4D PTRS_PER_P4D
-
/*
* Segment table and region3 table entry encoding
* (R = read-only, I = invalid, y = young bit):
diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h
index ce2cbb3c380f..2f6b1befb129 100644
--- a/include/asm-generic/pgtable-nop4d.h
+++ b/include/asm-generic/pgtable-nop4d.h
@@ -9,7 +9,6 @@
typedef struct { pgd_t pgd; } p4d_t;
#define P4D_SHIFT PGDIR_SHIFT
-#define MAX_PTRS_PER_P4D 1
#define PTRS_PER_P4D 1
#define P4D_SIZE (1UL << P4D_SHIFT)
#define P4D_MASK (~(P4D_SIZE-1))
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 136b1d996075..6fbbd620f6db 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -1580,4 +1580,26 @@ typedef unsigned int pgtbl_mod_mask;
#define pte_leaf_size(x) PAGE_SIZE
#endif
+/*
+ * Some architectures have MMUs that are configurable or selectable at boot
+ * time. These lead to variable PTRS_PER_x. For statically allocated arrays it
+ * helps to have a static maximum value.
+ */
+
+#ifndef MAX_PTRS_PER_PTE
+#define MAX_PTRS_PER_PTE PTRS_PER_PTE
+#endif
+
+#ifndef MAX_PTRS_PER_PMD
+#define MAX_PTRS_PER_PMD PTRS_PER_PMD
+#endif
+
+#ifndef MAX_PTRS_PER_PUD
+#define MAX_PTRS_PER_PUD PTRS_PER_PUD
+#endif
+
+#ifndef MAX_PTRS_PER_P4D
+#define MAX_PTRS_PER_P4D PTRS_PER_P4D
+#endif
+
#endif /* _LINUX_PGTABLE_H */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 248/700] spi: Allow to have all native CSs in use along with GPIOs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (246 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 247/700] mm: define default MAX_PTRS_PER_* in include/pgtable.h Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 249/700] spi: Avoid undefined behaviour when counting unused native CSs Greg Kroah-Hartman
` (457 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Shevchenko, Mark Brown, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit dbaca8e56ea3f23fa215f48c2d46dd03ede06e02 ]
The commit 7d93aecdb58d ("spi: Add generic support for unused native cs
with cs-gpios") excludes the valid case for the controllers that doesn't
need to switch native CS in order to perform the transfer, i.e. when
0 native
... ...
<n> - 1 native
<n> GPIO
<n> + 1 GPIO
... ...
where <n> defines maximum of native CSs supported by the controller.
To allow this, bail out from spi_get_gpio_descs() conditionally for
the controllers which explicitly marked with SPI_MASTER_GPIO_SS.
Fixes: 7d93aecdb58d ("spi: Add generic support for unused native cs with cs-gpios")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210420164425.40287-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 789354ee6a11..af126053213f 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2631,8 +2631,9 @@ static int spi_get_gpio_descs(struct spi_controller *ctlr)
}
ctlr->unused_native_cs = ffz(native_cs_mask);
- if (num_cs_gpios && ctlr->max_native_cs &&
- ctlr->unused_native_cs >= ctlr->max_native_cs) {
+
+ if ((ctlr->flags & SPI_MASTER_GPIO_SS) && num_cs_gpios &&
+ ctlr->max_native_cs && ctlr->unused_native_cs >= ctlr->max_native_cs) {
dev_err(dev, "No unused native chip select available\n");
return -EINVAL;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 249/700] spi: Avoid undefined behaviour when counting unused native CSs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (247 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 248/700] spi: Allow to have all native CSs in use along with GPIOs Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 250/700] media: venus: Rework error fail recover logic Greg Kroah-Hartman
` (456 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Shevchenko, Mark Brown, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit f60d7270c8a3d2beb1c23ae0da42497afa3584c2 ]
ffz(), that has been used to count unused native CSs,
might cause undefined behaviour when called against ~0U.
To fix that, open code it with ffs(~value) - 1.
Fixes: 7d93aecdb58d ("spi: Add generic support for unused native cs with cs-gpios")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210420164425.40287-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index af126053213f..2350463bfb8f 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -2630,7 +2630,7 @@ static int spi_get_gpio_descs(struct spi_controller *ctlr)
native_cs_mask |= BIT(i);
}
- ctlr->unused_native_cs = ffz(native_cs_mask);
+ ctlr->unused_native_cs = ffs(~native_cs_mask) - 1;
if ((ctlr->flags & SPI_MASTER_GPIO_SS) && num_cs_gpios &&
ctlr->max_native_cs && ctlr->unused_native_cs >= ctlr->max_native_cs) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 250/700] media: venus: Rework error fail recover logic
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (248 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 249/700] spi: Avoid undefined behaviour when counting unused native CSs Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 251/700] media: s5p_cec: decrement usage count if disabled Greg Kroah-Hartman
` (455 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 4cba5473c5ce0f1389d316c5dc6f83a0259df5eb ]
The Venus code has a sort of watchdog that attempts to recover
from IP errors, implemented as a delayed work job, which
calls venus_sys_error_handler().
Right now, it has several issues:
1. It assumes that PM runtime resume never fails
2. It internally runs two while() loops that also assume that
PM runtime will never fail to go idle:
while (pm_runtime_active(core->dev_dec) || pm_runtime_active(core->dev_enc))
msleep(10);
...
while (core->pmdomains[0] && pm_runtime_active(core->pmdomains[0]))
usleep_range(1000, 1500);
3. It uses an OR to merge all return codes and then report to the user
4. If the hardware never recovers, it keeps running on every 10ms,
flooding the syslog with 2 messages (so, up to 200 messages
per second).
Rework the code, in order to prevent that, by:
1. check the return code from PM runtime resume;
2. don't let the while() loops run forever;
3. store the failed event;
4. use warn ratelimited when it fails to recover.
Fixes: af2c3834c8ca ("[media] media: venus: adding core part and helper functions")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/qcom/venus/core.c | 60 +++++++++++++++++++-----
1 file changed, 47 insertions(+), 13 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index ae374bb2a48f..28443547ae8f 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -76,22 +76,32 @@ static const struct hfi_core_ops venus_core_ops = {
.event_notify = venus_event_notify,
};
+#define RPM_WAIT_FOR_IDLE_MAX_ATTEMPTS 10
+
static void venus_sys_error_handler(struct work_struct *work)
{
struct venus_core *core =
container_of(work, struct venus_core, work.work);
- int ret = 0;
-
- pm_runtime_get_sync(core->dev);
+ int ret, i, max_attempts = RPM_WAIT_FOR_IDLE_MAX_ATTEMPTS;
+ const char *err_msg = "";
+ bool failed = false;
+
+ ret = pm_runtime_get_sync(core->dev);
+ if (ret < 0) {
+ err_msg = "resume runtime PM";
+ max_attempts = 0;
+ failed = true;
+ }
hfi_core_deinit(core, true);
- dev_warn(core->dev, "system error has occurred, starting recovery!\n");
-
mutex_lock(&core->lock);
- while (pm_runtime_active(core->dev_dec) || pm_runtime_active(core->dev_enc))
+ for (i = 0; i < max_attempts; i++) {
+ if (!pm_runtime_active(core->dev_dec) && !pm_runtime_active(core->dev_enc))
+ break;
msleep(10);
+ }
venus_shutdown(core);
@@ -99,31 +109,55 @@ static void venus_sys_error_handler(struct work_struct *work)
pm_runtime_put_sync(core->dev);
- while (core->pmdomains[0] && pm_runtime_active(core->pmdomains[0]))
+ for (i = 0; i < max_attempts; i++) {
+ if (!core->pmdomains[0] || !pm_runtime_active(core->pmdomains[0]))
+ break;
usleep_range(1000, 1500);
+ }
hfi_reinit(core);
- pm_runtime_get_sync(core->dev);
+ ret = pm_runtime_get_sync(core->dev);
+ if (ret < 0) {
+ err_msg = "resume runtime PM";
+ failed = true;
+ }
- ret |= venus_boot(core);
- ret |= hfi_core_resume(core, true);
+ ret = venus_boot(core);
+ if (ret && !failed) {
+ err_msg = "boot Venus";
+ failed = true;
+ }
+
+ ret = hfi_core_resume(core, true);
+ if (ret && !failed) {
+ err_msg = "resume HFI";
+ failed = true;
+ }
enable_irq(core->irq);
mutex_unlock(&core->lock);
- ret |= hfi_core_init(core);
+ ret = hfi_core_init(core);
+ if (ret && !failed) {
+ err_msg = "init HFI";
+ failed = true;
+ }
pm_runtime_put_sync(core->dev);
- if (ret) {
+ if (failed) {
disable_irq_nosync(core->irq);
- dev_warn(core->dev, "recovery failed (%d)\n", ret);
+ dev_warn_ratelimited(core->dev,
+ "System error has occurred, recovery failed to %s\n",
+ err_msg);
schedule_delayed_work(&core->work, msecs_to_jiffies(10));
return;
}
+ dev_warn(core->dev, "system error has occurred (recovered)\n");
+
mutex_lock(&core->lock);
core->sys_error = false;
mutex_unlock(&core->lock);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 251/700] media: s5p_cec: decrement usage count if disabled
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (249 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 250/700] media: venus: Rework error fail recover logic Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 252/700] media: i2c: ccs-core: return the right error code at suspend Greg Kroah-Hartman
` (454 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sylwester Nawrocki, Jonathan Cameron,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 747bad54a677d8633ec14b39dfbeb859c821d7f2 ]
There's a bug at s5p_cec_adap_enable(): if called to
disable the device, it should call pm_runtime_put()
instead of pm_runtime_disable(), as the goal here is to
decrement the usage_count and not to disable PM runtime.
Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fixes: 1bcbf6f4b6b0 ("[media] cec: s5p-cec: Add s5p-cec driver")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/cec/platform/s5p/s5p_cec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c
index 2250c1cbc64e..028a09a7531e 100644
--- a/drivers/media/cec/platform/s5p/s5p_cec.c
+++ b/drivers/media/cec/platform/s5p/s5p_cec.c
@@ -54,7 +54,7 @@ static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable)
} else {
s5p_cec_mask_tx_interrupts(cec);
s5p_cec_mask_rx_interrupts(cec);
- pm_runtime_disable(cec->dev);
+ pm_runtime_put(cec->dev);
}
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 252/700] media: i2c: ccs-core: return the right error code at suspend
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (250 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 251/700] media: s5p_cec: decrement usage count if disabled Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 253/700] media: hantro: do a PM resume earlier Greg Kroah-Hartman
` (453 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Sakari Ailus,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 6005a8e955e4e451e4bf6000affaab566d4cab5e ]
If pm_runtime resume logic fails, return the error code
provided by it, instead of -EAGAIN, as, depending on what
caused it to fail, it may not be something that would be
recovered.
Fixes: cbba45d43631 ("[media] smiapp: Use runtime PM")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/ccs/ccs-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index 4505594996bd..fde0c51f0406 100644
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -3093,7 +3093,7 @@ static int __maybe_unused ccs_suspend(struct device *dev)
if (rval < 0) {
pm_runtime_put_noidle(dev);
- return -EAGAIN;
+ return rval;
}
if (sensor->streaming)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 253/700] media: hantro: do a PM resume earlier
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (251 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 252/700] media: i2c: ccs-core: return the right error code at suspend Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 254/700] crypto: ixp4xx - dma_unmap the correct address Greg Kroah-Hartman
` (452 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ezequiel Garcia,
Mauro Carvalho Chehab, Sasha Levin
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
[ Upstream commit 892bb6ecead9b834ba7ad1d07513e9eba1baa3a4 ]
The device_run() first enables the clock and then
tries to resume PM runtime, checking for errors.
Well, if for some reason the pm_runtime can not resume,
it would be better to detect it beforehand.
So, change the order inside device_run().
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Fixes: 775fec69008d ("media: add Rockchip VPU JPEG encoder driver")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/hantro/hantro_drv.c | 33 +++++++++++++++--------
1 file changed, 22 insertions(+), 11 deletions(-)
diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index e5f200e64993..2d6e0056be62 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -56,16 +56,12 @@ dma_addr_t hantro_get_ref(struct hantro_ctx *ctx, u64 ts)
return hantro_get_dec_buf_addr(ctx, buf);
}
-static void hantro_job_finish(struct hantro_dev *vpu,
- struct hantro_ctx *ctx,
- enum vb2_buffer_state result)
+static void hantro_job_finish_no_pm(struct hantro_dev *vpu,
+ struct hantro_ctx *ctx,
+ enum vb2_buffer_state result)
{
struct vb2_v4l2_buffer *src, *dst;
- pm_runtime_mark_last_busy(vpu->dev);
- pm_runtime_put_autosuspend(vpu->dev);
- clk_bulk_disable(vpu->variant->num_clocks, vpu->clocks);
-
src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
@@ -81,6 +77,18 @@ static void hantro_job_finish(struct hantro_dev *vpu,
result);
}
+static void hantro_job_finish(struct hantro_dev *vpu,
+ struct hantro_ctx *ctx,
+ enum vb2_buffer_state result)
+{
+ pm_runtime_mark_last_busy(vpu->dev);
+ pm_runtime_put_autosuspend(vpu->dev);
+
+ clk_bulk_disable(vpu->variant->num_clocks, vpu->clocks);
+
+ hantro_job_finish_no_pm(vpu, ctx, result);
+}
+
void hantro_irq_done(struct hantro_dev *vpu,
enum vb2_buffer_state result)
{
@@ -152,12 +160,15 @@ static void device_run(void *priv)
src = hantro_get_src_buf(ctx);
dst = hantro_get_dst_buf(ctx);
+ ret = pm_runtime_get_sync(ctx->dev->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(ctx->dev->dev);
+ goto err_cancel_job;
+ }
+
ret = clk_bulk_enable(ctx->dev->variant->num_clocks, ctx->dev->clocks);
if (ret)
goto err_cancel_job;
- ret = pm_runtime_get_sync(ctx->dev->dev);
- if (ret < 0)
- goto err_cancel_job;
v4l2_m2m_buf_copy_metadata(src, dst, true);
@@ -165,7 +176,7 @@ static void device_run(void *priv)
return;
err_cancel_job:
- hantro_job_finish(ctx->dev, ctx, VB2_BUF_STATE_ERROR);
+ hantro_job_finish_no_pm(ctx->dev, ctx, VB2_BUF_STATE_ERROR);
}
static struct v4l2_m2m_ops vpu_m2m_ops = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 254/700] crypto: ixp4xx - dma_unmap the correct address
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (252 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 253/700] media: hantro: do a PM resume earlier Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 255/700] crypto: ixp4xx - update IV after requests Greg Kroah-Hartman
` (451 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Corentin Labbe, Herbert Xu, Sasha Levin
From: Corentin Labbe <clabbe@baylibre.com>
[ Upstream commit 9395c58fdddd79cdd3882132cdd04e8ac7ad525f ]
Testing ixp4xx_crypto with CONFIG_DMA_API_DEBUG lead to the following error:
DMA-API: platform ixp4xx_crypto.0: device driver tries to free DMA memory it has not allocated [device address=0x0000000000000000] [size=24 bytes]
This is due to dma_unmap using the wrong address.
Fixes: 0d44dc59b2b4 ("crypto: ixp4xx - Fix handling of chained sg buffers")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/ixp4xx_crypto.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 8b0f17fc09fb..9e330e93e340 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -330,7 +330,7 @@ static void free_buf_chain(struct device *dev, struct buffer_desc *buf,
buf1 = buf->next;
phys1 = buf->phys_next;
- dma_unmap_single(dev, buf->phys_next, buf->buf_len, buf->dir);
+ dma_unmap_single(dev, buf->phys_addr, buf->buf_len, buf->dir);
dma_pool_free(buffer_pool, buf, phys);
buf = buf1;
phys = phys1;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 255/700] crypto: ixp4xx - update IV after requests
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (253 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 254/700] crypto: ixp4xx - dma_unmap the correct address Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 256/700] crypto: ux500 - Fix error return code in hash_hw_final() Greg Kroah-Hartman
` (450 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Corentin Labbe, Herbert Xu, Sasha Levin
From: Corentin Labbe <clabbe@baylibre.com>
[ Upstream commit e8acf011f2e7e21a7e2fae47cbaa06598e533d40 ]
Crypto selftests fail on ixp4xx since it do not update IV after skcipher
requests.
Fixes: 81bef0150074 ("crypto: ixp4xx - Hardware crypto support for IXP4xx CPUs")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/ixp4xx_crypto.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 9e330e93e340..7567456a21a0 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -149,6 +149,8 @@ struct crypt_ctl {
struct ablk_ctx {
struct buffer_desc *src;
struct buffer_desc *dst;
+ u8 iv[MAX_IVLEN];
+ bool encrypt;
};
struct aead_ctx {
@@ -381,6 +383,20 @@ static void one_packet(dma_addr_t phys)
case CTL_FLAG_PERFORM_ABLK: {
struct skcipher_request *req = crypt->data.ablk_req;
struct ablk_ctx *req_ctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ unsigned int ivsize = crypto_skcipher_ivsize(tfm);
+ unsigned int offset;
+
+ if (ivsize > 0) {
+ offset = req->cryptlen - ivsize;
+ if (req_ctx->encrypt) {
+ scatterwalk_map_and_copy(req->iv, req->dst,
+ offset, ivsize, 0);
+ } else {
+ memcpy(req->iv, req_ctx->iv, ivsize);
+ memzero_explicit(req_ctx->iv, ivsize);
+ }
+ }
if (req_ctx->dst) {
free_buf_chain(dev, req_ctx->dst, crypt->dst_buf);
@@ -876,6 +892,7 @@ static int ablk_perform(struct skcipher_request *req, int encrypt)
struct ablk_ctx *req_ctx = skcipher_request_ctx(req);
struct buffer_desc src_hook;
struct device *dev = &pdev->dev;
+ unsigned int offset;
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
GFP_KERNEL : GFP_ATOMIC;
@@ -885,6 +902,7 @@ static int ablk_perform(struct skcipher_request *req, int encrypt)
return -EAGAIN;
dir = encrypt ? &ctx->encrypt : &ctx->decrypt;
+ req_ctx->encrypt = encrypt;
crypt = get_crypt_desc();
if (!crypt)
@@ -900,6 +918,10 @@ static int ablk_perform(struct skcipher_request *req, int encrypt)
BUG_ON(ivsize && !req->iv);
memcpy(crypt->iv, req->iv, ivsize);
+ if (ivsize > 0 && !encrypt) {
+ offset = req->cryptlen - ivsize;
+ scatterwalk_map_and_copy(req_ctx->iv, req->src, offset, ivsize, 0);
+ }
if (req->src != req->dst) {
struct buffer_desc dst_hook;
crypt->mode |= NPE_OP_NOT_IN_PLACE;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 256/700] crypto: ux500 - Fix error return code in hash_hw_final()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (254 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 255/700] crypto: ixp4xx - update IV after requests Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 257/700] sata_highbank: fix deferred probing Greg Kroah-Hartman
` (449 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei, Linus Walleij,
Herbert Xu, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit b01360384009ab066940b45f34880991ea7ccbfb ]
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: 8a63b1994c50 ("crypto: ux500 - Add driver for HASH hardware")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/ux500/hash/hash_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
index da284b0ea1b2..243515df609b 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -1010,6 +1010,7 @@ static int hash_hw_final(struct ahash_request *req)
goto out;
}
} else if (req->nbytes == 0 && ctx->keylen > 0) {
+ ret = -EPERM;
dev_err(device_data->dev, "%s: Empty message with keylength > 0, NOT supported\n",
__func__);
goto out;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 257/700] sata_highbank: fix deferred probing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (255 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 256/700] crypto: ux500 - Fix error return code in hash_hw_final() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 258/700] pata_rb532_cf: " Greg Kroah-Hartman
` (448 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergey Shtylyov, Jens Axboe, Sasha Levin
From: Sergey Shtylyov <s.shtylyov@omprussia.ru>
[ Upstream commit 4a24efa16e7db02306fb5db84518bb0a7ada5a46 ]
The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Switch to propagating the
error code upstream, still checking/overriding IRQ0 as libata regards it
as "no IRQ" (thus polling) anyway...
Fixes: 9ec36cafe43b ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Link: https://lore.kernel.org/r/105b456d-1199-f6e9-ceb7-ffc5ba551d1a@omprussia.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/ata/sata_highbank.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index 64b2ef15ec19..8440203e835e 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -469,10 +469,12 @@ static int ahci_highbank_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
+ if (irq < 0) {
dev_err(dev, "no irq\n");
- return -EINVAL;
+ return irq;
}
+ if (!irq)
+ return -EINVAL;
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
if (!hpriv) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 258/700] pata_rb532_cf: fix deferred probing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (256 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 257/700] sata_highbank: fix deferred probing Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 259/700] media: I2C: change RST to "RSET" to fix multiple build errors Greg Kroah-Hartman
` (447 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergey Shtylyov, Jens Axboe, Sasha Levin
From: Sergey Shtylyov <s.shtylyov@omprussia.ru>
[ Upstream commit 2d3a62fbae8e5badc2342388f65ab2191c209cc0 ]
The driver overrides the error codes returned by platform_get_irq() to
-ENOENT, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Switch to propagating the
error code upstream, still checking/overriding IRQ0 as libata regards it
as "no IRQ" (thus polling) anyway...
Fixes: 9ec36cafe43b ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Link: https://lore.kernel.org/r/771ced55-3efb-21f5-f21c-b99920aae611@omprussia.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/ata/pata_rb532_cf.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index 479c4b29b856..303f8c375b3a 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -115,10 +115,12 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
+ if (irq < 0) {
dev_err(&pdev->dev, "no IRQ resource found\n");
- return -ENOENT;
+ return irq;
}
+ if (!irq)
+ return -EINVAL;
gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_IN);
if (IS_ERR(gpiod)) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 259/700] media: I2C: change RST to "RSET" to fix multiple build errors
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (257 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 258/700] pata_rb532_cf: " Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 260/700] sched/uclamp: Fix wrong implementation of cpu.uclamp.min Greg Kroah-Hartman
` (446 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, kernel test robot,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
NXP Linux Team, moderated for non-subscribers, Andrzej Hajda,
Sylwester Nawrocki, Sangwook Lee, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 8edcb5049ac29aa3c8acc5ef15dd4036543d747e ]
The use of an enum named 'RST' conflicts with a #define macro
named 'RST' in arch/mips/include/asm/mach-rc32434/rb.h.
The MIPS use of RST was there first (AFAICT), so change the
media/i2c/ uses of RST to be named 'RSET'.
'git grep -w RSET' does not report any naming conflicts with the
new name.
This fixes multiple build errors:
arch/mips/include/asm/mach-rc32434/rb.h:15:14: error: expected identifier before '(' token
15 | #define RST (1 << 15)
| ^
drivers/media/i2c/s5c73m3/s5c73m3.h:356:2: note: in expansion of macro 'RST'
356 | RST,
| ^~~
../arch/mips/include/asm/mach-rc32434/rb.h:15:14: error: expected identifier before '(' token
15 | #define RST (1 << 15)
| ^
../drivers/media/i2c/s5k6aa.c:180:2: note: in expansion of macro 'RST'
180 | RST,
| ^~~
../arch/mips/include/asm/mach-rc32434/rb.h:15:14: error: expected identifier before '(' token
15 | #define RST (1 << 15)
| ^
../drivers/media/i2c/s5k5baf.c:238:2: note: in expansion of macro 'RST'
238 | RST,
| ^~~
and some others that I have trimmed.
Fixes: cac47f1822fc ("[media] V4L: Add S5C73M3 camera driver")
Fixes: 8b99312b7214 ("[media] Add v4l2 subdev driver for S5K4ECGX sensor")
Fixes: 7d459937dc09 ("[media] Add driver for Samsung S5K5BAF camera sensor")
Fixes: bfa8dd3a0524 ("[media] v4l: Add v4l2 subdev driver for S5K6AAFX sensor")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Sangwook Lee <sangwook.lee@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/s5c73m3/s5c73m3-core.c | 6 +++---
drivers/media/i2c/s5c73m3/s5c73m3.h | 2 +-
drivers/media/i2c/s5k4ecgx.c | 10 +++++-----
drivers/media/i2c/s5k5baf.c | 6 +++---
drivers/media/i2c/s5k6aa.c | 10 +++++-----
5 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index 5b4c4a3547c9..71804a70bc6d 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -1386,7 +1386,7 @@ static int __s5c73m3_power_on(struct s5c73m3 *state)
s5c73m3_gpio_deassert(state, STBY);
usleep_range(100, 200);
- s5c73m3_gpio_deassert(state, RST);
+ s5c73m3_gpio_deassert(state, RSET);
usleep_range(50, 100);
return 0;
@@ -1401,7 +1401,7 @@ static int __s5c73m3_power_off(struct s5c73m3 *state)
{
int i, ret;
- if (s5c73m3_gpio_assert(state, RST))
+ if (s5c73m3_gpio_assert(state, RSET))
usleep_range(10, 50);
if (s5c73m3_gpio_assert(state, STBY))
@@ -1606,7 +1606,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
state->mclk_frequency = pdata->mclk_frequency;
state->gpio[STBY] = pdata->gpio_stby;
- state->gpio[RST] = pdata->gpio_reset;
+ state->gpio[RSET] = pdata->gpio_reset;
return 0;
}
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3.h b/drivers/media/i2c/s5c73m3/s5c73m3.h
index ef7e85b34263..c3fcfdd3ea66 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3.h
+++ b/drivers/media/i2c/s5c73m3/s5c73m3.h
@@ -353,7 +353,7 @@ struct s5c73m3_ctrls {
enum s5c73m3_gpio_id {
STBY,
- RST,
+ RSET,
GPIO_NUM,
};
diff --git a/drivers/media/i2c/s5k4ecgx.c b/drivers/media/i2c/s5k4ecgx.c
index b2d53417badf..4e97309a67f4 100644
--- a/drivers/media/i2c/s5k4ecgx.c
+++ b/drivers/media/i2c/s5k4ecgx.c
@@ -173,7 +173,7 @@ static const char * const s5k4ecgx_supply_names[] = {
enum s5k4ecgx_gpio_id {
STBY,
- RST,
+ RSET,
GPIO_NUM,
};
@@ -476,7 +476,7 @@ static int __s5k4ecgx_power_on(struct s5k4ecgx *priv)
if (s5k4ecgx_gpio_set_value(priv, STBY, priv->gpio[STBY].level))
usleep_range(30, 50);
- if (s5k4ecgx_gpio_set_value(priv, RST, priv->gpio[RST].level))
+ if (s5k4ecgx_gpio_set_value(priv, RSET, priv->gpio[RSET].level))
usleep_range(30, 50);
return 0;
@@ -484,7 +484,7 @@ static int __s5k4ecgx_power_on(struct s5k4ecgx *priv)
static int __s5k4ecgx_power_off(struct s5k4ecgx *priv)
{
- if (s5k4ecgx_gpio_set_value(priv, RST, !priv->gpio[RST].level))
+ if (s5k4ecgx_gpio_set_value(priv, RSET, !priv->gpio[RSET].level))
usleep_range(30, 50);
if (s5k4ecgx_gpio_set_value(priv, STBY, !priv->gpio[STBY].level))
@@ -872,7 +872,7 @@ static int s5k4ecgx_config_gpios(struct s5k4ecgx *priv,
int ret;
priv->gpio[STBY].gpio = -EINVAL;
- priv->gpio[RST].gpio = -EINVAL;
+ priv->gpio[RSET].gpio = -EINVAL;
ret = s5k4ecgx_config_gpio(gpio->gpio, gpio->level, "S5K4ECGX_STBY");
@@ -891,7 +891,7 @@ static int s5k4ecgx_config_gpios(struct s5k4ecgx *priv,
s5k4ecgx_free_gpios(priv);
return ret;
}
- priv->gpio[RST] = *gpio;
+ priv->gpio[RSET] = *gpio;
if (gpio_is_valid(gpio->gpio))
gpio_set_value(gpio->gpio, 0);
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index ec6f22efe19a..ec65a8e084c6 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -235,7 +235,7 @@ struct s5k5baf_gpio {
enum s5k5baf_gpio_id {
STBY,
- RST,
+ RSET,
NUM_GPIOS,
};
@@ -969,7 +969,7 @@ static int s5k5baf_power_on(struct s5k5baf *state)
s5k5baf_gpio_deassert(state, STBY);
usleep_range(50, 100);
- s5k5baf_gpio_deassert(state, RST);
+ s5k5baf_gpio_deassert(state, RSET);
return 0;
err_reg_dis:
@@ -987,7 +987,7 @@ static int s5k5baf_power_off(struct s5k5baf *state)
state->apply_cfg = 0;
state->apply_crop = 0;
- s5k5baf_gpio_assert(state, RST);
+ s5k5baf_gpio_assert(state, RSET);
s5k5baf_gpio_assert(state, STBY);
if (!IS_ERR(state->clock))
diff --git a/drivers/media/i2c/s5k6aa.c b/drivers/media/i2c/s5k6aa.c
index 72439fae7968..6516e205e9a3 100644
--- a/drivers/media/i2c/s5k6aa.c
+++ b/drivers/media/i2c/s5k6aa.c
@@ -177,7 +177,7 @@ static const char * const s5k6aa_supply_names[] = {
enum s5k6aa_gpio_id {
STBY,
- RST,
+ RSET,
GPIO_NUM,
};
@@ -841,7 +841,7 @@ static int __s5k6aa_power_on(struct s5k6aa *s5k6aa)
ret = s5k6aa->s_power(1);
usleep_range(4000, 5000);
- if (s5k6aa_gpio_deassert(s5k6aa, RST))
+ if (s5k6aa_gpio_deassert(s5k6aa, RSET))
msleep(20);
return ret;
@@ -851,7 +851,7 @@ static int __s5k6aa_power_off(struct s5k6aa *s5k6aa)
{
int ret;
- if (s5k6aa_gpio_assert(s5k6aa, RST))
+ if (s5k6aa_gpio_assert(s5k6aa, RSET))
usleep_range(100, 150);
if (s5k6aa->s_power) {
@@ -1510,7 +1510,7 @@ static int s5k6aa_configure_gpios(struct s5k6aa *s5k6aa,
int ret;
s5k6aa->gpio[STBY].gpio = -EINVAL;
- s5k6aa->gpio[RST].gpio = -EINVAL;
+ s5k6aa->gpio[RSET].gpio = -EINVAL;
gpio = &pdata->gpio_stby;
if (gpio_is_valid(gpio->gpio)) {
@@ -1533,7 +1533,7 @@ static int s5k6aa_configure_gpios(struct s5k6aa *s5k6aa,
if (ret < 0)
return ret;
- s5k6aa->gpio[RST] = *gpio;
+ s5k6aa->gpio[RSET] = *gpio;
}
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 260/700] sched/uclamp: Fix wrong implementation of cpu.uclamp.min
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (258 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 259/700] media: I2C: change RST to "RSET" to fix multiple build errors Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 261/700] sched/uclamp: Fix locking around cpu_util_update_eff() Greg Kroah-Hartman
` (445 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Qais Yousef, Peter Zijlstra (Intel),
Sasha Levin
From: Qais Yousef <qais.yousef@arm.com>
[ Upstream commit 0c18f2ecfcc274a4bcc1d122f79ebd4001c3b445 ]
cpu.uclamp.min is a protection as described in cgroup-v2 Resource
Distribution Model
Documentation/admin-guide/cgroup-v2.rst
which means we try our best to preserve the minimum performance point of
tasks in this group. See full description of cpu.uclamp.min in the
cgroup-v2.rst.
But the current implementation makes it a limit, which is not what was
intended.
For example:
tg->cpu.uclamp.min = 20%
p0->uclamp[UCLAMP_MIN] = 0
p1->uclamp[UCLAMP_MIN] = 50%
Previous Behavior (limit):
p0->effective_uclamp = 0
p1->effective_uclamp = 20%
New Behavior (Protection):
p0->effective_uclamp = 20%
p1->effective_uclamp = 50%
Which is inline with how protections should work.
With this change the cgroup and per-task behaviors are the same, as
expected.
Additionally, we remove the confusing relationship between cgroup and
!user_defined flag.
We don't want for example RT tasks that are boosted by default to max to
change their boost value when they attach to a cgroup. If a cgroup wants
to limit the max performance point of tasks attached to it, then
cpu.uclamp.max must be set accordingly.
Or if they want to set different boost value based on cgroup, then
sysctl_sched_util_clamp_min_rt_default must be used to NOT boost to max
and set the right cpu.uclamp.min for each group to let the RT tasks
obtain the desired boost value when attached to that group.
As it stands the dependency on !user_defined flag adds an extra layer of
complexity that is not required now cpu.uclamp.min behaves properly as
a protection.
The propagation model of effective cpu.uclamp.min in child cgroups as
implemented by cpu_util_update_eff() is still correct. The parent
protection sets an upper limit of what the child cgroups will
effectively get.
Fixes: 3eac870a3247 (sched/uclamp: Use TG's clamps to restrict TASK's clamps)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210510145032.1934078-2-qais.yousef@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/core.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 17f612045271..3fe7daf9d31d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1057,7 +1057,6 @@ uclamp_tg_restrict(struct task_struct *p, enum uclamp_id clamp_id)
{
struct uclamp_se uc_req = p->uclamp_req[clamp_id];
#ifdef CONFIG_UCLAMP_TASK_GROUP
- struct uclamp_se uc_max;
/*
* Tasks in autogroups or root task group will be
@@ -1068,9 +1067,23 @@ uclamp_tg_restrict(struct task_struct *p, enum uclamp_id clamp_id)
if (task_group(p) == &root_task_group)
return uc_req;
- uc_max = task_group(p)->uclamp[clamp_id];
- if (uc_req.value > uc_max.value || !uc_req.user_defined)
- return uc_max;
+ switch (clamp_id) {
+ case UCLAMP_MIN: {
+ struct uclamp_se uc_min = task_group(p)->uclamp[clamp_id];
+ if (uc_req.value < uc_min.value)
+ return uc_min;
+ break;
+ }
+ case UCLAMP_MAX: {
+ struct uclamp_se uc_max = task_group(p)->uclamp[clamp_id];
+ if (uc_req.value > uc_max.value)
+ return uc_max;
+ break;
+ }
+ default:
+ WARN_ON_ONCE(1);
+ break;
+ }
#endif
return uc_req;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 261/700] sched/uclamp: Fix locking around cpu_util_update_eff()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (259 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 260/700] sched/uclamp: Fix wrong implementation of cpu.uclamp.min Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 262/700] kbuild: Fix objtool dependency for OBJECT_FILES_NON_STANDARD_<obj> := n Greg Kroah-Hartman
` (444 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Quentin Perret, Qais Yousef,
Peter Zijlstra (Intel),
Sasha Levin
From: Qais Yousef <qais.yousef@arm.com>
[ Upstream commit 93b73858701fd01de26a4a874eb95f9b7156fd4b ]
cpu_cgroup_css_online() calls cpu_util_update_eff() without holding the
uclamp_mutex or rcu_read_lock() like other call sites, which is
a mistake.
The uclamp_mutex is required to protect against concurrent reads and
writes that could update the cgroup hierarchy.
The rcu_read_lock() is required to traverse the cgroup data structures
in cpu_util_update_eff().
Surround the caller with the required locks and add some asserts to
better document the dependency in cpu_util_update_eff().
Fixes: 7226017ad37a ("sched/uclamp: Fix a bug in propagating uclamp value in new cgroups")
Reported-by: Quentin Perret <qperret@google.com>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210510145032.1934078-3-qais.yousef@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/core.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 3fe7daf9d31d..f59166fe499a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -8693,7 +8693,11 @@ static int cpu_cgroup_css_online(struct cgroup_subsys_state *css)
#ifdef CONFIG_UCLAMP_TASK_GROUP
/* Propagate the effective uclamp value for the new group */
+ mutex_lock(&uclamp_mutex);
+ rcu_read_lock();
cpu_util_update_eff(css);
+ rcu_read_unlock();
+ mutex_unlock(&uclamp_mutex);
#endif
return 0;
@@ -8783,6 +8787,9 @@ static void cpu_util_update_eff(struct cgroup_subsys_state *css)
enum uclamp_id clamp_id;
unsigned int clamps;
+ lockdep_assert_held(&uclamp_mutex);
+ SCHED_WARN_ON(!rcu_read_lock_held());
+
css_for_each_descendant_pre(css, top_css) {
uc_parent = css_tg(css)->parent
? css_tg(css)->parent->uclamp : NULL;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 262/700] kbuild: Fix objtool dependency for OBJECT_FILES_NON_STANDARD_<obj> := n
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (260 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 261/700] sched/uclamp: Fix locking around cpu_util_update_eff() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 263/700] pata_octeon_cf: avoid WARN_ON() in ata_host_activate() Greg Kroah-Hartman
` (443 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Matthew Wilcox, Josh Poimboeuf, Sasha Levin
From: Josh Poimboeuf <jpoimboe@redhat.com>
[ Upstream commit 8852c552402979508fdc395ae07aa8761aa46045 ]
"OBJECT_FILES_NON_STANDARD_vma.o := n" has a dependency bug. When
objtool source is updated, the affected object doesn't get re-analyzed
by objtool.
Peter's new variable-sized jump label feature relies on objtool
rewriting the object file. Otherwise the system can fail to boot. That
effectively upgrades this minor dependency issue to a major bug.
The problem is that variables in prerequisites are expanded early,
during the read-in phase. The '$(objtool_dep)' variable indirectly uses
'$@', which isn't yet available when the target prerequisites are
evaluated.
Use '.SECONDEXPANSION:' which causes '$(objtool_dep)' to be expanded in
a later phase, after the target-specific '$@' variable has been defined.
Fixes: b9ab5ebb14ec ("objtool: Add CONFIG_STACK_VALIDATION option")
Fixes: ab3257042c26 ("jump_label, x86: Allow short NOPs")
Reported-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
scripts/Makefile.build | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1b6094a13034..73701d637ed5 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -267,7 +267,8 @@ define rule_as_o_S
endef
# Built-in and composite module parts
-$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
+.SECONDEXPANSION:
+$(obj)/%.o: $(src)/%.c $(recordmcount_source) $$(objtool_dep) FORCE
$(call if_changed_rule,cc_o_c)
$(call cmd,force_checksrc)
@@ -348,7 +349,7 @@ cmd_modversions_S = \
fi
endif
-$(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
+$(obj)/%.o: $(src)/%.S $$(objtool_dep) FORCE
$(call if_changed_rule,as_o_S)
targets += $(filter-out $(subdir-builtin), $(real-obj-y))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 263/700] pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (261 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 262/700] kbuild: Fix objtool dependency for OBJECT_FILES_NON_STANDARD_<obj> := n Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 264/700] evm: fix writing <securityfs>/evm overflow Greg Kroah-Hartman
` (442 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergey Shtylyov, Jens Axboe, Sasha Levin
From: Sergey Shtylyov <s.shtylyov@omp.ru>
[ Upstream commit bfc1f378c8953e68ccdbfe0a8c20748427488b80 ]
Iff platform_get_irq() fails (or returns IRQ0) and thus the polling mode
has to be used, ata_host_activate() hits the WARN_ON() due to 'irq_handler'
parameter being non-NULL if the polling mode is selected. Let's only set
the pointer to the driver's IRQ handler if platform_get_irq() returns a
valid IRQ # -- this should avoid the unnecessary WARN_ON()...
Fixes: 43f01da0f279 ("MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/3a241167-f84d-1d25-5b9b-be910afbe666@omp.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/ata/pata_octeon_cf.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index bd87476ab481..b5a3f710d76d 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -898,10 +898,11 @@ static int octeon_cf_probe(struct platform_device *pdev)
return -EINVAL;
}
- irq_handler = octeon_cf_interrupt;
i = platform_get_irq(dma_dev, 0);
- if (i > 0)
+ if (i > 0) {
irq = i;
+ irq_handler = octeon_cf_interrupt;
+ }
}
of_node_put(dma_node);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 264/700] evm: fix writing <securityfs>/evm overflow
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (262 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 263/700] pata_octeon_cf: avoid WARN_ON() in ata_host_activate() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 265/700] x86/elf: Use _BITUL() macro in UAPI headers Greg Kroah-Hartman
` (441 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Mimi Zohar, Sasha Levin
From: Mimi Zohar <zohar@linux.ibm.com>
[ Upstream commit 49219d9b8785ba712575c40e48ce0f7461254626 ]
EVM_SETUP_COMPLETE is defined as 0x80000000, which is larger than INT_MAX.
The "-fno-strict-overflow" compiler option properly prevents signaling
EVM that the EVM policy setup is complete. Define and read an unsigned
int.
Fixes: f00d79750712 ("EVM: Allow userspace to signal an RSA key has been loaded")
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
security/integrity/evm/evm_secfs.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/security/integrity/evm/evm_secfs.c b/security/integrity/evm/evm_secfs.c
index c175e2b659e4..5f0da41bccd0 100644
--- a/security/integrity/evm/evm_secfs.c
+++ b/security/integrity/evm/evm_secfs.c
@@ -66,12 +66,13 @@ static ssize_t evm_read_key(struct file *filp, char __user *buf,
static ssize_t evm_write_key(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- int i, ret;
+ unsigned int i;
+ int ret;
if (!capable(CAP_SYS_ADMIN) || (evm_initialized & EVM_SETUP_COMPLETE))
return -EPERM;
- ret = kstrtoint_from_user(buf, count, 0, &i);
+ ret = kstrtouint_from_user(buf, count, 0, &i);
if (ret)
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 265/700] x86/elf: Use _BITUL() macro in UAPI headers
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (263 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 264/700] evm: fix writing <securityfs>/evm overflow Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 266/700] crypto: sa2ul - Fix leaks on failure paths with sa_dma_init() Greg Kroah-Hartman
` (440 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joe Richey, Borislav Petkov, Sasha Levin
From: Joe Richey <joerichey@google.com>
[ Upstream commit d06aca989c243dd9e5d3e20aa4e5c2ecfdd07050 ]
Replace BIT() in x86's UAPI header with _BITUL(). BIT() is not defined
in the UAPI headers and its usage may cause userspace build errors.
Fixes: 742c45c3ecc9 ("x86/elf: Enumerate kernel FSGSBASE capability in AT_HWCAP2")
Signed-off-by: Joe Richey <joerichey@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210521085849.37676-2-joerichey94@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/include/uapi/asm/hwcap2.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/uapi/asm/hwcap2.h b/arch/x86/include/uapi/asm/hwcap2.h
index 5fdfcb47000f..054604aba9f0 100644
--- a/arch/x86/include/uapi/asm/hwcap2.h
+++ b/arch/x86/include/uapi/asm/hwcap2.h
@@ -2,10 +2,12 @@
#ifndef _ASM_X86_HWCAP2_H
#define _ASM_X86_HWCAP2_H
+#include <linux/const.h>
+
/* MONITOR/MWAIT enabled in Ring 3 */
-#define HWCAP2_RING3MWAIT (1 << 0)
+#define HWCAP2_RING3MWAIT _BITUL(0)
/* Kernel allows FSGSBASE instructions available in Ring 3 */
-#define HWCAP2_FSGSBASE BIT(1)
+#define HWCAP2_FSGSBASE _BITUL(1)
#endif
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 266/700] crypto: sa2ul - Fix leaks on failure paths with sa_dma_init()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (264 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 265/700] x86/elf: Use _BITUL() macro in UAPI headers Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 267/700] crypto: sa2ul - Fix pm_runtime enable in sa_ul_probe() Greg Kroah-Hartman
` (439 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Suman Anna, Tero Kristo, Herbert Xu,
Sasha Levin
From: Suman Anna <s-anna@ti.com>
[ Upstream commit 4c0716ee1d973f6504d13f0e8d4d10350c85ad37 ]
The sa_dma_init() function doesn't release the requested dma channels
on all failure paths. Any failure in this function also ends up
leaking the dma pool created in sa_init_mem() in the sa_ul_probe()
function. Fix all of these issues.
Fixes: 7694b6ca649f ("crypto: sa2ul - Add crypto driver")
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/sa2ul.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index b0f0502a5bb0..efde3e96f62d 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -2275,9 +2275,9 @@ static int sa_dma_init(struct sa_crypto_data *dd)
dd->dma_rx2 = dma_request_chan(dd->dev, "rx2");
if (IS_ERR(dd->dma_rx2)) {
- dma_release_channel(dd->dma_rx1);
- return dev_err_probe(dd->dev, PTR_ERR(dd->dma_rx2),
- "Unable to request rx2 DMA channel\n");
+ ret = dev_err_probe(dd->dev, PTR_ERR(dd->dma_rx2),
+ "Unable to request rx2 DMA channel\n");
+ goto err_dma_rx2;
}
dd->dma_tx = dma_request_chan(dd->dev, "tx");
@@ -2298,28 +2298,31 @@ static int sa_dma_init(struct sa_crypto_data *dd)
if (ret) {
dev_err(dd->dev, "can't configure IN dmaengine slave: %d\n",
ret);
- return ret;
+ goto err_dma_config;
}
ret = dmaengine_slave_config(dd->dma_rx2, &cfg);
if (ret) {
dev_err(dd->dev, "can't configure IN dmaengine slave: %d\n",
ret);
- return ret;
+ goto err_dma_config;
}
ret = dmaengine_slave_config(dd->dma_tx, &cfg);
if (ret) {
dev_err(dd->dev, "can't configure OUT dmaengine slave: %d\n",
ret);
- return ret;
+ goto err_dma_config;
}
return 0;
+err_dma_config:
+ dma_release_channel(dd->dma_tx);
err_dma_tx:
- dma_release_channel(dd->dma_rx1);
dma_release_channel(dd->dma_rx2);
+err_dma_rx2:
+ dma_release_channel(dd->dma_rx1);
return ret;
}
@@ -2364,7 +2367,7 @@ static int sa_ul_probe(struct platform_device *pdev)
sa_init_mem(dev_data);
ret = sa_dma_init(dev_data);
if (ret)
- goto disable_pm_runtime;
+ goto destroy_dma_pool;
spin_lock_init(&dev_data->scid_lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -2394,9 +2397,9 @@ release_dma:
dma_release_channel(dev_data->dma_rx1);
dma_release_channel(dev_data->dma_tx);
+destroy_dma_pool:
dma_pool_destroy(dev_data->sc_pool);
-disable_pm_runtime:
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 267/700] crypto: sa2ul - Fix pm_runtime enable in sa_ul_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (265 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 266/700] crypto: sa2ul - Fix leaks on failure paths with sa_dma_init() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 268/700] crypto: ccp - Fix a resource leak in an error handling path Greg Kroah-Hartman
` (438 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Suman Anna, Tero Kristo, Herbert Xu,
Sasha Levin
From: Suman Anna <s-anna@ti.com>
[ Upstream commit 5c8552325e013cbdabc443cd1f1b4d03c4a2e64e ]
The pm_runtime APIs added first in commit 7694b6ca649f ("crypto: sa2ul -
Add crypto driver") are not unwound properly and was fixed up partially
in commit 13343badae09 ("crypto: sa2ul - Fix PM reference leak in
sa_ul_probe()"). This fixed up the pm_runtime usage count but not the
state. Fix this properly.
Fixes: 13343badae09 ("crypto: sa2ul - Fix PM reference leak in sa_ul_probe()")
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/sa2ul.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index efde3e96f62d..ba116670ef8c 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -2361,6 +2361,7 @@ static int sa_ul_probe(struct platform_device *pdev)
if (ret < 0) {
dev_err(&pdev->dev, "%s: failed to get sync: %d\n", __func__,
ret);
+ pm_runtime_disable(dev);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 268/700] crypto: ccp - Fix a resource leak in an error handling path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (266 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 267/700] crypto: sa2ul - Fix pm_runtime enable in sa_ul_probe() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 269/700] media: rc: i2c: Fix an error message Greg Kroah-Hartman
` (437 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, John Allen,
Herbert Xu, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit a6f8e68e238a15bb15f1726b35c695136c64eaba ]
If an error occurs after calling 'sp_get_irqs()', 'sp_free_irqs()' must be
called as already done in the error handling path.
Fixes: f4d18d656f88 ("crypto: ccp - Abstract interrupt registeration")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: John Allen <john.allen@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/ccp/sp-pci.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/ccp/sp-pci.c b/drivers/crypto/ccp/sp-pci.c
index f471dbaef1fb..7d346d842a39 100644
--- a/drivers/crypto/ccp/sp-pci.c
+++ b/drivers/crypto/ccp/sp-pci.c
@@ -222,7 +222,7 @@ static int sp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (ret) {
dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n",
ret);
- goto e_err;
+ goto free_irqs;
}
}
@@ -230,10 +230,12 @@ static int sp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
ret = sp_init(sp);
if (ret)
- goto e_err;
+ goto free_irqs;
return 0;
+free_irqs:
+ sp_free_irqs(sp);
e_err:
dev_notice(dev, "initialization failed\n");
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 269/700] media: rc: i2c: Fix an error message
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (267 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 268/700] crypto: ccp - Fix a resource leak in an error handling path Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 270/700] pata_ep93xx: fix deferred probing Greg Kroah-Hartman
` (436 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Sean Young,
Mauro Carvalho Chehab, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 9c87ae1a0dbeb5794957421157fd266d38a869b4 ]
'ret' is known to be 1 here. In fact 'i' is expected instead.
Store the return value of 'i2c_master_recv()' in 'ret' so that the error
message print the correct error code.
Fixes: acaa34bf06e9 ("media: rc: implement zilog transmitter")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/ir-kbd-i2c.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/ir-kbd-i2c.c b/drivers/media/i2c/ir-kbd-i2c.c
index e8119ad0bc71..92376592455e 100644
--- a/drivers/media/i2c/ir-kbd-i2c.c
+++ b/drivers/media/i2c/ir-kbd-i2c.c
@@ -678,8 +678,8 @@ static int zilog_tx(struct rc_dev *rcdev, unsigned int *txbuf,
goto out_unlock;
}
- i = i2c_master_recv(ir->tx_c, buf, 1);
- if (i != 1) {
+ ret = i2c_master_recv(ir->tx_c, buf, 1);
+ if (ret != 1) {
dev_err(&ir->rc->dev, "i2c_master_recv failed with %d\n", ret);
ret = -EIO;
goto out_unlock;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 270/700] pata_ep93xx: fix deferred probing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (268 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 269/700] media: rc: i2c: Fix an error message Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 271/700] locking/lockdep: Reduce LOCKDEP dependency list Greg Kroah-Hartman
` (435 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sergey Shtylyov, Jens Axboe, Sasha Levin
From: Sergey Shtylyov <s.shtylyov@omprussia.ru>
[ Upstream commit 5c8121262484d99bffb598f39a0df445cecd8efb ]
The driver overrides the error codes returned by platform_get_irq() to
-ENXIO, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Propagate the error code
upstream, as it should have been done from the start...
Fixes: 2fff27512600 ("PATA host controller driver for ep93xx")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Link: https://lore.kernel.org/r/509fda88-2e0d-2cc7-f411-695d7e94b136@omprussia.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/ata/pata_ep93xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index badab6708893..46208ececbb6 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -928,7 +928,7 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
/* INT[3] (IRQ_EP93XX_EXT3) line connected as pull down */
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
- err = -ENXIO;
+ err = irq;
goto err_rel_gpio;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 271/700] locking/lockdep: Reduce LOCKDEP dependency list
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (269 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 270/700] pata_ep93xx: fix deferred probing Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 272/700] sched: Dont defer CPU pick to migration_cpu_stop() Greg Kroah-Hartman
` (434 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Peter Zijlstra (Intel),
Waiman Long, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit b8e00abe7d9fe21dd13609e2e3a707e38902b105 ]
Some arches (um, sparc64, riscv, xtensa) cause a Kconfig warning for
LOCKDEP.
These arch-es select LOCKDEP_SUPPORT but they are not listed as one
of the arch-es that LOCKDEP depends on.
Since (16) arch-es define the Kconfig symbol LOCKDEP_SUPPORT if they
intend to have LOCKDEP support, replace the awkward list of
arch-es that LOCKDEP depends on with the LOCKDEP_SUPPORT symbol.
But wait. LOCKDEP_SUPPORT is included in LOCK_DEBUGGING_SUPPORT,
which is already a dependency here, so LOCKDEP_SUPPORT is redundant
and not needed.
That leaves the FRAME_POINTER dependency, but it is part of an
expression like this:
depends on (A && B) && (FRAME_POINTER || B')
where B' is a dependency of B so if B is true then B' is true
and the value of FRAME_POINTER does not matter.
Thus we can also delete the FRAME_POINTER dependency.
Fixes this kconfig warning: (for um, sparc64, riscv, xtensa)
WARNING: unmet direct dependencies detected for LOCKDEP
Depends on [n]: DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y] && (FRAME_POINTER [=n] || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86)
Selected by [y]:
- PROVE_LOCKING [=y] && DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y]
- LOCK_STAT [=y] && DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y]
- DEBUG_LOCK_ALLOC [=y] && DEBUG_KERNEL [=y] && LOCK_DEBUGGING_SUPPORT [=y]
Fixes: 7d37cb2c912d ("lib: fix kconfig dependency on ARCH_WANT_FRAME_POINTERS")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lkml.kernel.org/r/20210524224150.8009-1-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
lib/Kconfig.debug | 1 -
1 file changed, 1 deletion(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 417c3d3e521b..5c9f528dd46d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1363,7 +1363,6 @@ config LOCKDEP
bool
depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
select STACKTRACE
- depends on FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86
select KALLSYMS
select KALLSYMS_ALL
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 272/700] sched: Dont defer CPU pick to migration_cpu_stop()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (270 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 271/700] locking/lockdep: Reduce LOCKDEP dependency list Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 273/700] media: ipu3-cio2: Fix reference counting when looping over ACPI devices Greg Kroah-Hartman
` (433 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Will Deacon, Valentin Schneider,
Peter Zijlstra (Intel),
Sasha Levin
From: Valentin Schneider <valentin.schneider@arm.com>
[ Upstream commit 475ea6c60279e9f2ddf7e4cf2648cd8ae0608361 ]
Will reported that the 'XXX __migrate_task() can fail' in migration_cpu_stop()
can happen, and it *is* sort of a big deal. Looking at it some more, one
will note there is a glaring hole in the deferred CPU selection:
(w/ CONFIG_CPUSET=n, so that the affinity mask passed via taskset doesn't
get AND'd with cpu_online_mask)
$ taskset -pc 0-2 $PID
# offline CPUs 3-4
$ taskset -pc 3-5 $PID
`\
$PID may stay on 0-2 due to the cpumask_any_distribute() picking an
offline CPU and __migrate_task() refusing to do anything due to
cpu_is_allowed().
set_cpus_allowed_ptr() goes to some length to pick a dest_cpu that matches
the right constraints vs affinity and the online/active state of the
CPUs. Reuse that instead of discarding it in the affine_move_task() case.
Fixes: 6d337eab041d ("sched: Fix migrate_disable() vs set_cpus_allowed_ptr()")
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210526205751.842360-2-valentin.schneider@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/core.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f59166fe499a..fe5da692dd7a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1919,7 +1919,6 @@ static int migration_cpu_stop(void *data)
struct migration_arg *arg = data;
struct set_affinity_pending *pending = arg->pending;
struct task_struct *p = arg->task;
- int dest_cpu = arg->dest_cpu;
struct rq *rq = this_rq();
bool complete = false;
struct rq_flags rf;
@@ -1952,19 +1951,15 @@ static int migration_cpu_stop(void *data)
if (p->migration_pending == pending)
p->migration_pending = NULL;
complete = true;
- }
- if (dest_cpu < 0) {
if (cpumask_test_cpu(task_cpu(p), &p->cpus_mask))
goto out;
-
- dest_cpu = cpumask_any_distribute(&p->cpus_mask);
}
if (task_on_rq_queued(p))
- rq = __migrate_task(rq, &rf, p, dest_cpu);
+ rq = __migrate_task(rq, &rf, p, arg->dest_cpu);
else
- p->wake_cpu = dest_cpu;
+ p->wake_cpu = arg->dest_cpu;
/*
* XXX __migrate_task() can fail, at which point we might end
@@ -2243,7 +2238,7 @@ static int affine_move_task(struct rq *rq, struct task_struct *p, struct rq_flag
init_completion(&my_pending.done);
my_pending.arg = (struct migration_arg) {
.task = p,
- .dest_cpu = -1, /* any */
+ .dest_cpu = dest_cpu,
.pending = &my_pending,
};
@@ -2251,6 +2246,15 @@ static int affine_move_task(struct rq *rq, struct task_struct *p, struct rq_flag
} else {
pending = p->migration_pending;
refcount_inc(&pending->refs);
+ /*
+ * Affinity has changed, but we've already installed a
+ * pending. migration_cpu_stop() *must* see this, else
+ * we risk a completion of the pending despite having a
+ * task on a disallowed CPU.
+ *
+ * Serialized by p->pi_lock, so this is safe.
+ */
+ pending->arg.dest_cpu = dest_cpu;
}
}
pending = p->migration_pending;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 273/700] media: ipu3-cio2: Fix reference counting when looping over ACPI devices
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (271 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 272/700] sched: Dont defer CPU pick to migration_cpu_stop() Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 274/700] media: rkvdec: Fix .buf_prepare Greg Kroah-Hartman
` (432 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Shevchenko, Daniel Scally,
Sakari Ailus, Mauro Carvalho Chehab, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 2cb2705cf7ffe41dc5bd81290e4241bfb7f031cc ]
When we continue, due to device is disabled, loop we have to drop
reference count. When we have an array full of devices we have to also
drop the reference count. Note, in this case the
cio2_bridge_unregister_sensors() is called by the caller.
Fixes: 803abec64ef9 ("media: ipu3-cio2: Add cio2-bridge to ipu3-cio2 driver")
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/intel/ipu3/cio2-bridge.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
index c2199042d3db..85f8b587405e 100644
--- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
+++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
@@ -173,14 +173,15 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
int ret;
for_each_acpi_dev_match(adev, cfg->hid, NULL, -1) {
- if (!adev->status.enabled)
+ if (!adev->status.enabled) {
+ acpi_dev_put(adev);
continue;
+ }
if (bridge->n_sensors >= CIO2_NUM_PORTS) {
+ acpi_dev_put(adev);
dev_err(&cio2->dev, "Exceeded available CIO2 ports\n");
- cio2_bridge_unregister_sensors(bridge);
- ret = -EINVAL;
- goto err_out;
+ return -EINVAL;
}
sensor = &bridge->sensors[bridge->n_sensors];
@@ -228,7 +229,6 @@ err_free_swnodes:
software_node_unregister_nodes(sensor->swnodes);
err_put_adev:
acpi_dev_put(sensor->adev);
-err_out:
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 274/700] media: rkvdec: Fix .buf_prepare
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (272 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 273/700] media: ipu3-cio2: Fix reference counting when looping over ACPI devices Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 275/700] media: exynos4-is: Fix a use after free in isp_video_release Greg Kroah-Hartman
` (431 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ezequiel Garcia, Adrian Ratiu,
Andrzej Pietrasiewicz, Hans Verkuil, Mauro Carvalho Chehab,
Sasha Levin
From: Ezequiel Garcia <ezequiel@collabora.com>
[ Upstream commit ba1ed4ae760a81caf39f54232e089d95157a0dba ]
The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.
If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in rkvdec-h264.c.
[Changed the comment and used V4L2_TYPE_IS_CAPTURE macro]
Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/rkvdec/rkvdec.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 8c17615f3a7a..7131156c1f2c 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -481,7 +481,15 @@ static int rkvdec_buf_prepare(struct vb2_buffer *vb)
if (vb2_plane_size(vb, i) < sizeimage)
return -EINVAL;
}
- vb2_set_plane_payload(vb, 0, f->fmt.pix_mp.plane_fmt[0].sizeimage);
+
+ /*
+ * Buffer's bytesused must be written by driver for CAPTURE buffers.
+ * (for OUTPUT buffers, if userspace passes 0 bytesused, v4l2-core sets
+ * it to buffer length).
+ */
+ if (V4L2_TYPE_IS_CAPTURE(vq->type))
+ vb2_set_plane_payload(vb, 0, f->fmt.pix_mp.plane_fmt[0].sizeimage);
+
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 275/700] media: exynos4-is: Fix a use after free in isp_video_release
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (273 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 274/700] media: rkvdec: Fix .buf_prepare Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:05 ` [PATCH 5.12 276/700] media: au0828: fix a NULL vs IS_ERR() check Greg Kroah-Hartman
` (430 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lv Yunlong, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
[ Upstream commit 01fe904c9afd26e79c1f73aa0ca2e3d785e5e319 ]
In isp_video_release, file->private_data is freed via
_vb2_fop_release()->v4l2_fh_release(). But the freed
file->private_data is still used in v4l2_fh_is_singular_file()
->v4l2_fh_is_singular(file->private_data), which is a use
after free bug.
My patch uses a variable 'is_singular_file' to avoid the uaf.
v3: https://lore.kernel.org/patchwork/patch/1419058/
Fixes: 34947b8aebe3f ("[media] exynos4-is: Add the FIMC-IS ISP capture DMA driver")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/exynos4-is/fimc-isp-video.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/exynos4-is/fimc-isp-video.c b/drivers/media/platform/exynos4-is/fimc-isp-video.c
index 8d9dc597deaa..83688a7982f7 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c
@@ -305,17 +305,20 @@ static int isp_video_release(struct file *file)
struct fimc_is_video *ivc = &isp->video_capture;
struct media_entity *entity = &ivc->ve.vdev.entity;
struct media_device *mdev = entity->graph_obj.mdev;
+ bool is_singular_file;
mutex_lock(&isp->video_lock);
- if (v4l2_fh_is_singular_file(file) && ivc->streaming) {
+ is_singular_file = v4l2_fh_is_singular_file(file);
+
+ if (is_singular_file && ivc->streaming) {
media_pipeline_stop(entity);
ivc->streaming = 0;
}
_vb2_fop_release(file, NULL);
- if (v4l2_fh_is_singular_file(file)) {
+ if (is_singular_file) {
fimc_pipeline_call(&ivc->ve, close);
mutex_lock(&mdev->graph_mutex);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 276/700] media: au0828: fix a NULL vs IS_ERR() check
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (274 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 275/700] media: exynos4-is: Fix a use after free in isp_video_release Greg Kroah-Hartman
@ 2021-07-12 6:05 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 277/700] media: tc358743: Fix error return code in tc358743_probe_of() Greg Kroah-Hartman
` (429 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:05 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 8f2e452730d2bcd59fe05246f0e19a4c52e0012d ]
The media_device_usb_allocate() function returns error pointers when
it's enabled and something goes wrong. It can return NULL as well, but
only if CONFIG_MEDIA_CONTROLLER is disabled so that doesn't apply here.
Fixes: 812658d88d26 ("media: change au0828 to use Media Device Allocator API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/au0828/au0828-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index a8a72d5fbd12..caefac07af92 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -199,8 +199,8 @@ static int au0828_media_device_init(struct au0828_dev *dev,
struct media_device *mdev;
mdev = media_device_usb_allocate(udev, KBUILD_MODNAME, THIS_MODULE);
- if (!mdev)
- return -ENOMEM;
+ if (IS_ERR(mdev))
+ return PTR_ERR(mdev);
dev->media_dev = mdev;
#endif
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 277/700] media: tc358743: Fix error return code in tc358743_probe_of()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (275 preceding siblings ...)
2021-07-12 6:05 ` [PATCH 5.12 276/700] media: au0828: fix a NULL vs IS_ERR() check Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 278/700] media: vicodec: Use _BITUL() macro in UAPI headers Greg Kroah-Hartman
` (428 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit a6b1e7093f0a099571fc8836ab4a589633f956a8 ]
When the CSI bps per lane is not in the valid range, an appropriate error
code -EINVAL should be returned. However, we currently do not explicitly
assign this error code to 'ret'. As a result, 0 was incorrectly returned.
Fixes: 256148246852 ("[media] tc358743: support probe from device tree")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/tc358743.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 1b309bb743c7..f21da11caf22 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1974,6 +1974,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
bps_pr_lane = 2 * endpoint.link_frequencies[0];
if (bps_pr_lane < 62500000U || bps_pr_lane > 1000000000U) {
dev_err(dev, "unsupported bps per lane: %u bps\n", bps_pr_lane);
+ ret = -EINVAL;
goto disable_clk;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 278/700] media: vicodec: Use _BITUL() macro in UAPI headers
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (276 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 277/700] media: tc358743: Fix error return code in tc358743_probe_of() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 279/700] media: gspca/gl860: fix zero-length control requests Greg Kroah-Hartman
` (427 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joe Richey, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Joe Richey <joerichey@google.com>
[ Upstream commit ce67eaca95f8ab5c6aae41a10adfe9a6e8efa58c ]
Replace BIT() in v4l2's UPAI header with _BITUL(). BIT() is not defined
in the UAPI headers and its usage may cause userspace build errors.
Fixes: 206bc0f6fb94 ("media: vicodec: mark the stateless FWHT API as stable")
Signed-off-by: Joe Richey <joerichey@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/uapi/linux/v4l2-controls.h | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 039c0d7add1b..c7fe032df185 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -50,6 +50,7 @@
#ifndef __LINUX_V4L2_CONTROLS_H
#define __LINUX_V4L2_CONTROLS_H
+#include <linux/const.h>
#include <linux/types.h>
/* Control classes */
@@ -1593,30 +1594,30 @@ struct v4l2_ctrl_h264_decode_params {
#define V4L2_FWHT_VERSION 3
/* Set if this is an interlaced format */
-#define V4L2_FWHT_FL_IS_INTERLACED BIT(0)
+#define V4L2_FWHT_FL_IS_INTERLACED _BITUL(0)
/* Set if this is a bottom-first (NTSC) interlaced format */
-#define V4L2_FWHT_FL_IS_BOTTOM_FIRST BIT(1)
+#define V4L2_FWHT_FL_IS_BOTTOM_FIRST _BITUL(1)
/* Set if each 'frame' contains just one field */
-#define V4L2_FWHT_FL_IS_ALTERNATE BIT(2)
+#define V4L2_FWHT_FL_IS_ALTERNATE _BITUL(2)
/*
* If V4L2_FWHT_FL_IS_ALTERNATE was set, then this is set if this
* 'frame' is the bottom field, else it is the top field.
*/
-#define V4L2_FWHT_FL_IS_BOTTOM_FIELD BIT(3)
+#define V4L2_FWHT_FL_IS_BOTTOM_FIELD _BITUL(3)
/* Set if the Y' plane is uncompressed */
-#define V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED BIT(4)
+#define V4L2_FWHT_FL_LUMA_IS_UNCOMPRESSED _BITUL(4)
/* Set if the Cb plane is uncompressed */
-#define V4L2_FWHT_FL_CB_IS_UNCOMPRESSED BIT(5)
+#define V4L2_FWHT_FL_CB_IS_UNCOMPRESSED _BITUL(5)
/* Set if the Cr plane is uncompressed */
-#define V4L2_FWHT_FL_CR_IS_UNCOMPRESSED BIT(6)
+#define V4L2_FWHT_FL_CR_IS_UNCOMPRESSED _BITUL(6)
/* Set if the chroma plane is full height, if cleared it is half height */
-#define V4L2_FWHT_FL_CHROMA_FULL_HEIGHT BIT(7)
+#define V4L2_FWHT_FL_CHROMA_FULL_HEIGHT _BITUL(7)
/* Set if the chroma plane is full width, if cleared it is half width */
-#define V4L2_FWHT_FL_CHROMA_FULL_WIDTH BIT(8)
+#define V4L2_FWHT_FL_CHROMA_FULL_WIDTH _BITUL(8)
/* Set if the alpha plane is uncompressed */
-#define V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED BIT(9)
+#define V4L2_FWHT_FL_ALPHA_IS_UNCOMPRESSED _BITUL(9)
/* Set if this is an I Frame */
-#define V4L2_FWHT_FL_I_FRAME BIT(10)
+#define V4L2_FWHT_FL_I_FRAME _BITUL(10)
/* A 4-values flag - the number of components - 1 */
#define V4L2_FWHT_FL_COMPONENTS_NUM_MSK GENMASK(18, 16)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 279/700] media: gspca/gl860: fix zero-length control requests
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (277 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 278/700] media: vicodec: Use _BITUL() macro in UAPI headers Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 280/700] m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning Greg Kroah-Hartman
` (426 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johan Hovold, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Johan Hovold <johan@kernel.org>
[ Upstream commit 8ed339f23d41e21660a389adf2e7b2966d457ff6 ]
The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.
Control transfers without a data stage are treated as OUT requests by
the USB stack and should be using usb_sndctrlpipe(). Failing to do so
will now trigger a warning.
Fix the gl860_RTx() helper so that zero-length control reads fail with
an error message instead. Note that there are no current callers that
would trigger this.
Fixes: 4f7cb8837cec ("V4L/DVB (12954): gspca - gl860: Addition of GL860 based webcams")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/usb/gspca/gl860/gl860.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/usb/gspca/gl860/gl860.c b/drivers/media/usb/gspca/gl860/gl860.c
index 2c05ea2598e7..ce4ee8bc75c8 100644
--- a/drivers/media/usb/gspca/gl860/gl860.c
+++ b/drivers/media/usb/gspca/gl860/gl860.c
@@ -561,8 +561,8 @@ int gl860_RTx(struct gspca_dev *gspca_dev,
len, 400 + 200 * (len > 1));
memcpy(pdata, gspca_dev->usb_buf, len);
} else {
- r = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
- req, pref, val, index, NULL, len, 400);
+ gspca_err(gspca_dev, "zero-length read request\n");
+ r = -EINVAL;
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 280/700] m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (278 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 279/700] media: gspca/gl860: fix zero-length control requests Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 281/700] media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2() Greg Kroah-Hartman
` (425 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Geert Uytterhoeven,
Michael Schmitz, Dmitry Torokhov, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit c1367ee016e3550745315fb9a2dd1e4ce02cdcf6 ]
Since the code for ATARI_KBD_CORE does not use drivers/input/keyboard/
code, just move ATARI_KBD_CORE to arch/m68k/Kconfig.machine to remove
the dependency on INPUT_KEYBOARD.
Removes this kconfig warning:
WARNING: unmet direct dependencies detected for ATARI_KBD_CORE
Depends on [n]: !UML && INPUT [=y] && INPUT_KEYBOARD [=n]
Selected by [y]:
- MOUSE_ATARI [=y] && !UML && INPUT [=y] && INPUT_MOUSE [=y] && ATARI [=y]
Fixes: c04cb856e20a ("m68k: Atari keyboard and mouse support.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Suggested-by: Michael Schmitz <schmitzmic@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20210527001251.8529-1-rdunlap@infradead.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/m68k/Kconfig.machine | 3 +++
drivers/input/keyboard/Kconfig | 3 ---
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index 4d59ec2f5b8d..d964c1f27399 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -25,6 +25,9 @@ config ATARI
this kernel on an Atari, say Y here and browse the material
available in <file:Documentation/m68k>; otherwise say N.
+config ATARI_KBD_CORE
+ bool
+
config MAC
bool "Macintosh support"
depends on MMU
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 32d15809ae58..40a070a2e7f5 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -67,9 +67,6 @@ config KEYBOARD_AMIGA
To compile this driver as a module, choose M here: the
module will be called amikbd.
-config ATARI_KBD_CORE
- bool
-
config KEYBOARD_APPLESPI
tristate "Apple SPI keyboard and trackpad"
depends on ACPI && EFI
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 281/700] media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (279 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 280/700] m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 282/700] regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCK Greg Kroah-Hartman
` (424 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kees Cook, Gustavo A. R. Silva, Sasha Levin
From: Gustavo A. R. Silva <gustavoars@kernel.org>
[ Upstream commit 13dfead49db07225335d4f587a560a2210391a1a ]
Rename struct sms_msg_data4 to sms_msg_data5 and increase the size of
its msg_data array from 4 to 5 elements. Notice that at some point
the 5th element of msg_data is being accessed in function
smscore_load_firmware_family2():
1006 trigger_msg->msg_data[4] = 4; /* Task ID */
Also, there is no need for the object _trigger_msg_ of type struct
sms_msg_data *, when _msg_ can be used, directly. Notice that msg_data
in struct sms_msg_data is a one-element array, which causes multiple
out-of-bounds warnings when accessing beyond its first element
in function smscore_load_firmware_family2():
992 struct sms_msg_data *trigger_msg =
993 (struct sms_msg_data *) msg;
994
995 pr_debug("sending MSG_SMS_SWDOWNLOAD_TRIGGER_REQ\n");
996 SMS_INIT_MSG(&msg->x_msg_header,
997 MSG_SMS_SWDOWNLOAD_TRIGGER_REQ,
998 sizeof(struct sms_msg_hdr) +
999 sizeof(u32) * 5);
1000
1001 trigger_msg->msg_data[0] = firmware->start_address;
1002 /* Entry point */
1003 trigger_msg->msg_data[1] = 6; /* Priority */
1004 trigger_msg->msg_data[2] = 0x200; /* Stack size */
1005 trigger_msg->msg_data[3] = 0; /* Parameter */
1006 trigger_msg->msg_data[4] = 4; /* Task ID */
even when enough dynamic memory is allocated for _msg_:
929 /* PAGE_SIZE buffer shall be enough and dma aligned */
930 msg = kmalloc(PAGE_SIZE, GFP_KERNEL | coredev->gfp_buf_flags);
but as _msg_ is casted to (struct sms_msg_data *):
992 struct sms_msg_data *trigger_msg =
993 (struct sms_msg_data *) msg;
the out-of-bounds warnings are actually valid and should be addressed.
Fix this by declaring object _msg_ of type struct sms_msg_data5 *,
which contains a 5-elements array, instead of just 4. And use
_msg_ directly, instead of creating object trigger_msg.
This helps with the ongoing efforts to enable -Warray-bounds by fixing
the following warnings:
CC [M] drivers/media/common/siano/smscoreapi.o
drivers/media/common/siano/smscoreapi.c: In function ‘smscore_load_firmware_family2’:
drivers/media/common/siano/smscoreapi.c:1003:24: warning: array subscript 1 is above array bounds of ‘u32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
1003 | trigger_msg->msg_data[1] = 6; /* Priority */
| ~~~~~~~~~~~~~~~~~~~~~^~~
In file included from drivers/media/common/siano/smscoreapi.c:12:
drivers/media/common/siano/smscoreapi.h:619:6: note: while referencing ‘msg_data’
619 | u32 msg_data[1];
| ^~~~~~~~
drivers/media/common/siano/smscoreapi.c:1004:24: warning: array subscript 2 is above array bounds of ‘u32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
1004 | trigger_msg->msg_data[2] = 0x200; /* Stack size */
| ~~~~~~~~~~~~~~~~~~~~~^~~
In file included from drivers/media/common/siano/smscoreapi.c:12:
drivers/media/common/siano/smscoreapi.h:619:6: note: while referencing ‘msg_data’
619 | u32 msg_data[1];
| ^~~~~~~~
drivers/media/common/siano/smscoreapi.c:1005:24: warning: array subscript 3 is above array bounds of ‘u32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
1005 | trigger_msg->msg_data[3] = 0; /* Parameter */
| ~~~~~~~~~~~~~~~~~~~~~^~~
In file included from drivers/media/common/siano/smscoreapi.c:12:
drivers/media/common/siano/smscoreapi.h:619:6: note: while referencing ‘msg_data’
619 | u32 msg_data[1];
| ^~~~~~~~
drivers/media/common/siano/smscoreapi.c:1006:24: warning: array subscript 4 is above array bounds of ‘u32[1]’ {aka ‘unsigned int[1]’} [-Warray-bounds]
1006 | trigger_msg->msg_data[4] = 4; /* Task ID */
| ~~~~~~~~~~~~~~~~~~~~~^~~
In file included from drivers/media/common/siano/smscoreapi.c:12:
drivers/media/common/siano/smscoreapi.h:619:6: note: while referencing ‘msg_data’
619 | u32 msg_data[1];
| ^~~~~~~~
Fixes: 018b0c6f8acb ("[media] siano: make load firmware logic to work with newer firmwares")
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/common/siano/smscoreapi.c | 22 +++++++++-------------
drivers/media/common/siano/smscoreapi.h | 4 ++--
2 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c
index c1511094fdc7..b735e2370137 100644
--- a/drivers/media/common/siano/smscoreapi.c
+++ b/drivers/media/common/siano/smscoreapi.c
@@ -908,7 +908,7 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev,
void *buffer, size_t size)
{
struct sms_firmware *firmware = (struct sms_firmware *) buffer;
- struct sms_msg_data4 *msg;
+ struct sms_msg_data5 *msg;
u32 mem_address, calc_checksum = 0;
u32 i, *ptr;
u8 *payload = firmware->payload;
@@ -989,24 +989,20 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev,
goto exit_fw_download;
if (coredev->mode == DEVICE_MODE_NONE) {
- struct sms_msg_data *trigger_msg =
- (struct sms_msg_data *) msg;
-
pr_debug("sending MSG_SMS_SWDOWNLOAD_TRIGGER_REQ\n");
SMS_INIT_MSG(&msg->x_msg_header,
MSG_SMS_SWDOWNLOAD_TRIGGER_REQ,
- sizeof(struct sms_msg_hdr) +
- sizeof(u32) * 5);
+ sizeof(*msg));
- trigger_msg->msg_data[0] = firmware->start_address;
+ msg->msg_data[0] = firmware->start_address;
/* Entry point */
- trigger_msg->msg_data[1] = 6; /* Priority */
- trigger_msg->msg_data[2] = 0x200; /* Stack size */
- trigger_msg->msg_data[3] = 0; /* Parameter */
- trigger_msg->msg_data[4] = 4; /* Task ID */
+ msg->msg_data[1] = 6; /* Priority */
+ msg->msg_data[2] = 0x200; /* Stack size */
+ msg->msg_data[3] = 0; /* Parameter */
+ msg->msg_data[4] = 4; /* Task ID */
- rc = smscore_sendrequest_and_wait(coredev, trigger_msg,
- trigger_msg->x_msg_header.msg_length,
+ rc = smscore_sendrequest_and_wait(coredev, msg,
+ msg->x_msg_header.msg_length,
&coredev->trigger_done);
} else {
SMS_INIT_MSG(&msg->x_msg_header, MSG_SW_RELOAD_EXEC_REQ,
diff --git a/drivers/media/common/siano/smscoreapi.h b/drivers/media/common/siano/smscoreapi.h
index b3b793b5caf3..16c45afabc53 100644
--- a/drivers/media/common/siano/smscoreapi.h
+++ b/drivers/media/common/siano/smscoreapi.h
@@ -629,9 +629,9 @@ struct sms_msg_data2 {
u32 msg_data[2];
};
-struct sms_msg_data4 {
+struct sms_msg_data5 {
struct sms_msg_hdr x_msg_header;
- u32 msg_data[4];
+ u32 msg_data[5];
};
struct sms_data_download {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 282/700] regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCK
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (280 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 281/700] media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 283/700] crypto: nitrox - fix unchecked variable in nitrox_register_interrupts Greg Kroah-Hartman
` (423 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Axel Lin, Mark Brown, Sasha Levin
From: Axel Lin <axel.lin@ingics.com>
[ Upstream commit 2e11737a772b95c6587df73f216eec1762431432 ]
According to the datasheet:
REGISTER DETAILS − 0x02 BUCK, BUCK_OUT is BIT0 ~ BIT7.
So vsel_mask for FAN53880_BUCK should be 0xFF.
Fixes: e6dea51e2d41 ("regulator: fan53880: Add initial support")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210607142907.1599905-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/fan53880.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/fan53880.c b/drivers/regulator/fan53880.c
index 1684faf82ed2..94f02f3099dd 100644
--- a/drivers/regulator/fan53880.c
+++ b/drivers/regulator/fan53880.c
@@ -79,7 +79,7 @@ static const struct regulator_desc fan53880_regulators[] = {
.n_linear_ranges = 2,
.n_voltages = 0xf8,
.vsel_reg = FAN53880_BUCKVOUT,
- .vsel_mask = 0x7f,
+ .vsel_mask = 0xff,
.enable_reg = FAN53880_ENABLE,
.enable_mask = 0x10,
.enable_time = 480,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 283/700] crypto: nitrox - fix unchecked variable in nitrox_register_interrupts
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (281 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 282/700] regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCK Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 284/700] crypto: omap-sham - Fix PM reference leak in omap sham ops Greg Kroah-Hartman
` (422 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tong Tiangen, Herbert Xu, Sasha Levin
From: Tong Tiangen <tongtiangen@huawei.com>
[ Upstream commit 57c126661f50b884d3812e7db6e00f2e778eccfb ]
Function nitrox_register_interrupts leaves variable 'nr_vecs' unchecked, which
would be use as kcalloc parameter later.
Fixes: 5155e118dda9 ("crypto: cavium/nitrox - use pci_alloc_irq_vectors() while enabling MSI-X.")
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/cavium/nitrox/nitrox_isr.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/crypto/cavium/nitrox/nitrox_isr.c b/drivers/crypto/cavium/nitrox/nitrox_isr.c
index 99b053094f5a..b16689b48f5a 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_isr.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_isr.c
@@ -307,6 +307,10 @@ int nitrox_register_interrupts(struct nitrox_device *ndev)
* Entry 192: NPS_CORE_INT_ACTIVE
*/
nr_vecs = pci_msix_vec_count(pdev);
+ if (nr_vecs < 0) {
+ dev_err(DEV(ndev), "Error in getting vec count %d\n", nr_vecs);
+ return nr_vecs;
+ }
/* Enable MSI-X */
ret = pci_alloc_irq_vectors(pdev, nr_vecs, nr_vecs, PCI_IRQ_MSIX);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 284/700] crypto: omap-sham - Fix PM reference leak in omap sham ops
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (282 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 283/700] crypto: nitrox - fix unchecked variable in nitrox_register_interrupts Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 285/700] crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit Greg Kroah-Hartman
` (421 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Qilong, Herbert Xu, Sasha Levin
From: Zhang Qilong <zhangqilong3@huawei.com>
[ Upstream commit ca323b2c61ec321eb9f2179a405b9c34cdb4f553 ]
pm_runtime_get_sync will increment pm usage counter
even it failed. Forgetting to putting operation will
result in reference leak here. We fix it by replacing
it with pm_runtime_resume_and_get to keep usage counter
balanced.
Fixes: 604c31039dae4 ("crypto: omap-sham - Check for return value from pm_runtime_get_sync")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/omap-sham.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index ae0d320d3c60..dd53ad9987b0 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -372,7 +372,7 @@ static int omap_sham_hw_init(struct omap_sham_dev *dd)
{
int err;
- err = pm_runtime_get_sync(dd->dev);
+ err = pm_runtime_resume_and_get(dd->dev);
if (err < 0) {
dev_err(dd->dev, "failed to get sync: %d\n", err);
return err;
@@ -2244,7 +2244,7 @@ static int omap_sham_suspend(struct device *dev)
static int omap_sham_resume(struct device *dev)
{
- int err = pm_runtime_get_sync(dev);
+ int err = pm_runtime_resume_and_get(dev);
if (err < 0) {
dev_err(dev, "failed to get sync: %d\n", err);
return err;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 285/700] crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (283 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 284/700] crypto: omap-sham - Fix PM reference leak in omap sham ops Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 286/700] crypto: sm2 - fix a memory leak in sm2 Greg Kroah-Hartman
` (420 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hangbin Liu, Jason A. Donenfeld,
Herbert Xu, Sasha Levin
From: Hangbin Liu <liuhangbin@gmail.com>
[ Upstream commit 1b82435d17774f3eaab35dce239d354548aa9da2 ]
In curve25519_mod_init() the curve25519_alg will be registered only when
(X86_FEATURE_BMI2 && X86_FEATURE_ADX). But in curve25519_mod_exit()
it still checks (X86_FEATURE_BMI2 || X86_FEATURE_ADX) when do crypto
unregister. This will trigger a BUG_ON in crypto_unregister_alg() as
alg->cra_refcnt is 0 if the cpu only supports one of X86_FEATURE_BMI2
and X86_FEATURE_ADX.
Fixes: 07b586fe0662 ("crypto: x86/curve25519 - replace with formally verified implementation")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/crypto/curve25519-x86_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/crypto/curve25519-x86_64.c b/arch/x86/crypto/curve25519-x86_64.c
index 5af8021b98ce..11b4c83c715e 100644
--- a/arch/x86/crypto/curve25519-x86_64.c
+++ b/arch/x86/crypto/curve25519-x86_64.c
@@ -1500,7 +1500,7 @@ static int __init curve25519_mod_init(void)
static void __exit curve25519_mod_exit(void)
{
if (IS_REACHABLE(CONFIG_CRYPTO_KPP) &&
- (boot_cpu_has(X86_FEATURE_BMI2) || boot_cpu_has(X86_FEATURE_ADX)))
+ static_branch_likely(&curve25519_use_bmi2_adx))
crypto_unregister_kpp(&curve25519_alg);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 286/700] crypto: sm2 - fix a memory leak in sm2
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (284 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 285/700] crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 287/700] mmc: usdhi6rol0: fix error return code in usdhi6_probe() Greg Kroah-Hartman
` (419 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hongbo Li, Tianjia Zhang, Herbert Xu,
Sasha Levin
From: Hongbo Li <herberthbli@tencent.com>
[ Upstream commit 5cd259ca5d466f65ffd21e2e2fa00fb648a8c555 ]
SM2 module alloc ec->Q in sm2_set_pub_key(), when doing alg test in
test_akcipher_one(), it will set public key for every test vector,
and don't free ec->Q. This will cause a memory leak.
This patch alloc ec->Q in sm2_ec_ctx_init().
Fixes: ea7ecb66440b ("crypto: sm2 - introduce OSCCA SM2 asymmetric cipher algorithm")
Signed-off-by: Hongbo Li <herberthbli@tencent.com>
Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
crypto/sm2.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/crypto/sm2.c b/crypto/sm2.c
index b21addc3ac06..db8a4a265669 100644
--- a/crypto/sm2.c
+++ b/crypto/sm2.c
@@ -79,10 +79,17 @@ static int sm2_ec_ctx_init(struct mpi_ec_ctx *ec)
goto free;
rc = -ENOMEM;
+
+ ec->Q = mpi_point_new(0);
+ if (!ec->Q)
+ goto free;
+
/* mpi_ec_setup_elliptic_curve */
ec->G = mpi_point_new(0);
- if (!ec->G)
+ if (!ec->G) {
+ mpi_point_release(ec->Q);
goto free;
+ }
mpi_set(ec->G->x, x);
mpi_set(ec->G->y, y);
@@ -91,6 +98,7 @@ static int sm2_ec_ctx_init(struct mpi_ec_ctx *ec)
rc = -EINVAL;
ec->n = mpi_scanval(ecp->n);
if (!ec->n) {
+ mpi_point_release(ec->Q);
mpi_point_release(ec->G);
goto free;
}
@@ -386,27 +394,15 @@ static int sm2_set_pub_key(struct crypto_akcipher *tfm,
MPI a;
int rc;
- ec->Q = mpi_point_new(0);
- if (!ec->Q)
- return -ENOMEM;
-
/* include the uncompressed flag '0x04' */
- rc = -ENOMEM;
a = mpi_read_raw_data(key, keylen);
if (!a)
- goto error;
+ return -ENOMEM;
mpi_normalize(a);
rc = sm2_ecc_os2ec(ec->Q, a);
mpi_free(a);
- if (rc)
- goto error;
-
- return 0;
-error:
- mpi_point_release(ec->Q);
- ec->Q = NULL;
return rc;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 287/700] mmc: usdhi6rol0: fix error return code in usdhi6_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (285 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 286/700] crypto: sm2 - fix a memory leak in sm2 Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 288/700] arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan Greg Kroah-Hartman
` (418 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei, Ulf Hansson,
Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit 2f9ae69e5267f53e89e296fccee291975a85f0eb ]
Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.
Fixes: 75fa9ea6e3c0 ("mmc: add a driver for the Renesas usdhi6rol0 SD/SDIO host controller")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210508020321.1677-1-thunder.leizhen@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/host/usdhi6rol0.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c
index 615f3d008af1..b9b79b1089a0 100644
--- a/drivers/mmc/host/usdhi6rol0.c
+++ b/drivers/mmc/host/usdhi6rol0.c
@@ -1801,6 +1801,7 @@ static int usdhi6_probe(struct platform_device *pdev)
version = usdhi6_read(host, USDHI6_VERSION);
if ((version & 0xfff) != 0xa0d) {
+ ret = -EPERM;
dev_err(dev, "Version not recognized %x\n", version);
goto e_clk_off;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 288/700] arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (286 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 287/700] mmc: usdhi6rol0: fix error return code in usdhi6_probe() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 289/700] media: v4l2-core: ignore native time32 ioctls on 64-bit Greg Kroah-Hartman
` (417 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Catalin Marinas, Will Deacon,
Mark Rutland, James Morse, linux-arm-kernel, Anshuman Khandual,
Sasha Levin
From: Anshuman Khandual <anshuman.khandual@arm.com>
[ Upstream commit 9163f01130304fab1f74683d7d44632da7bda637 ]
When using CONFIG_ARM64_SW_TTBR0_PAN, a task's thread_info::ttbr0 must be
the TTBR0_EL1 value used to run userspace. With 52-bit PAs, the PA must be
packed into the TTBR using phys_to_ttbr(), but we forget to do this in some
of the SW PAN code. Thus, if the value is installed into TTBR0_EL1 (as may
happen in the uaccess routines), this could result in UNPREDICTABLE
behaviour.
Since hardware with 52-bit PA support almost certainly has HW PAN, which
will be used in preference, this shouldn't be a practical issue, but let's
fix this for consistency.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Fixes: 529c4b05a3cb ("arm64: handle 52-bit addresses in TTBR")
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/1623749578-11231-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/include/asm/mmu_context.h | 4 ++--
arch/arm64/kernel/setup.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index bd02e99b1a4c..44dceac442fc 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -177,9 +177,9 @@ static inline void update_saved_ttbr0(struct task_struct *tsk,
return;
if (mm == &init_mm)
- ttbr = __pa_symbol(reserved_pg_dir);
+ ttbr = phys_to_ttbr(__pa_symbol(reserved_pg_dir));
else
- ttbr = virt_to_phys(mm->pgd) | ASID(mm) << 48;
+ ttbr = phys_to_ttbr(virt_to_phys(mm->pgd)) | ASID(mm) << 48;
WRITE_ONCE(task_thread_info(tsk)->ttbr0, ttbr);
}
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 61845c0821d9..68b30e8c22db 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -381,7 +381,7 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p)
* faults in case uaccess_enable() is inadvertently called by the init
* thread.
*/
- init_task.thread_info.ttbr0 = __pa_symbol(reserved_pg_dir);
+ init_task.thread_info.ttbr0 = phys_to_ttbr(__pa_symbol(reserved_pg_dir));
#endif
if (boot_args[1] || boot_args[2] || boot_args[3]) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 289/700] media: v4l2-core: ignore native time32 ioctls on 64-bit
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (287 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 288/700] arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 290/700] media: subdev: remove VIDIOC_DQEVENT_TIME32 handling Greg Kroah-Hartman
` (416 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+142888ffec98ab194028,
Arnd Bergmann, Laurent Pinchart, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit c344f07aa1b4ba38ca8fabe407a2afe2f436323c ]
Syzbot found that passing ioctl command 0xc0505609 into a 64-bit
kernel from a 32-bit process causes uninitialized kernel memory to
get passed to drivers instead of the user space data:
BUG: KMSAN: uninit-value in check_array_args drivers/media/v4l2-core/v4l2-ioctl.c:3041 [inline]
BUG: KMSAN: uninit-value in video_usercopy+0x1631/0x3d30 drivers/media/v4l2-core/v4l2-ioctl.c:3315
CPU: 0 PID: 19595 Comm: syz-executor.4 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:120
kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
check_array_args drivers/media/v4l2-core/v4l2-ioctl.c:3041 [inline]
video_usercopy+0x1631/0x3d30 drivers/media/v4l2-core/v4l2-ioctl.c:3315
video_ioctl2+0x9f/0xb0 drivers/media/v4l2-core/v4l2-ioctl.c:3391
v4l2_ioctl+0x255/0x290 drivers/media/v4l2-core/v4l2-dev.c:360
v4l2_compat_ioctl32+0x2c6/0x370 drivers/media/v4l2-core/v4l2-compat-ioctl32.c:1248
__do_compat_sys_ioctl fs/ioctl.c:842 [inline]
__se_compat_sys_ioctl+0x53d/0x1100 fs/ioctl.c:793
__ia32_compat_sys_ioctl+0x4a/0x70 fs/ioctl.c:793
do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline]
__do_fast_syscall_32+0x102/0x160 arch/x86/entry/common.c:141
do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:166
do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:209
entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
The time32 commands are defined but were never meant to be called on
64-bit machines, as those have always used time64 interfaces. I missed
this in my patch that introduced the time64 handling on 32-bit platforms.
The problem in this case is the mismatch of one function checking for
the numeric value of the command and another function checking for the
type of process (native vs compat) instead, with the result being that
for this combination, nothing gets copied into the buffer at all.
Avoid this by only trying to convert the time32 commands when running
on a 32-bit kernel where these are defined in a meaningful way.
[hverkuil: fix 3 warnings: switch with no cases]
Fixes: 577c89b0ce72 ("media: v4l2-core: fix v4l2_buffer handling for time64 ABI")
Reported-by: syzbot+142888ffec98ab194028@syzkaller.appspotmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/v4l2-core/v4l2-ioctl.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 31d1342e61e8..7e8bf4b1ab2e 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -3114,8 +3114,8 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
static unsigned int video_translate_cmd(unsigned int cmd)
{
+#if !defined(CONFIG_64BIT) && defined(CONFIG_COMPAT_32BIT_TIME)
switch (cmd) {
-#ifdef CONFIG_COMPAT_32BIT_TIME
case VIDIOC_DQEVENT_TIME32:
return VIDIOC_DQEVENT;
case VIDIOC_QUERYBUF_TIME32:
@@ -3126,8 +3126,8 @@ static unsigned int video_translate_cmd(unsigned int cmd)
return VIDIOC_DQBUF;
case VIDIOC_PREPARE_BUF_TIME32:
return VIDIOC_PREPARE_BUF;
-#endif
}
+#endif
if (in_compat_syscall())
return v4l2_compat_translate_cmd(cmd);
@@ -3168,8 +3168,8 @@ static int video_get_user(void __user *arg, void *parg,
} else if (in_compat_syscall()) {
err = v4l2_compat_get_user(arg, parg, cmd);
} else {
+#if !defined(CONFIG_64BIT) && defined(CONFIG_COMPAT_32BIT_TIME)
switch (cmd) {
-#ifdef CONFIG_COMPAT_32BIT_TIME
case VIDIOC_QUERYBUF_TIME32:
case VIDIOC_QBUF_TIME32:
case VIDIOC_DQBUF_TIME32:
@@ -3197,8 +3197,8 @@ static int video_get_user(void __user *arg, void *parg,
};
break;
}
-#endif
}
+#endif
}
/* zero out anything we don't copy from userspace */
@@ -3223,8 +3223,8 @@ static int video_put_user(void __user *arg, void *parg,
if (in_compat_syscall())
return v4l2_compat_put_user(arg, parg, cmd);
+#if !defined(CONFIG_64BIT) && defined(CONFIG_COMPAT_32BIT_TIME)
switch (cmd) {
-#ifdef CONFIG_COMPAT_32BIT_TIME
case VIDIOC_DQEVENT_TIME32: {
struct v4l2_event *ev = parg;
struct v4l2_event_time32 ev32;
@@ -3272,8 +3272,8 @@ static int video_put_user(void __user *arg, void *parg,
return -EFAULT;
break;
}
-#endif
}
+#endif
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 290/700] media: subdev: remove VIDIOC_DQEVENT_TIME32 handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (288 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 289/700] media: v4l2-core: ignore native time32 ioctls on 64-bit Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 291/700] media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx Greg Kroah-Hartman
` (415 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Laurent Pinchart,
Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 765ba251d2522e2a0daa2f0793fd0f0ce34816ec ]
Converting the VIDIOC_DQEVENT_TIME32/VIDIOC_DQEVENT32/
VIDIOC_DQEVENT32_TIME32 arguments to the canonical form is done in common
code, but for some reason I ended up adding another conversion helper to
subdev_do_ioctl() as well. I must have concluded that this does not go
through the common conversion, but it has done that since the ioctl
handler was first added.
I assume this one is harmless as there should be no way to arrive here
from user space if CONFIG_COMPAT_32BIT_TIME is set, but since it is dead
code, it should just get removed.
On a 64-bit architecture, as well as a 32-bit architecture without
CONFIG_COMPAT_32BIT_TIME, handling this command is a mistake,
and the kernel should return an error.
Fixes: 1a6c0b36dd19 ("media: v4l2-core: fix VIDIOC_DQEVENT for time64 ABI")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/v4l2-core/v4l2-subdev.c | 24 ------------------------
1 file changed, 24 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 956dafab43d4..bf3aa9252458 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -428,30 +428,6 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
return v4l2_event_dequeue(vfh, arg, file->f_flags & O_NONBLOCK);
- case VIDIOC_DQEVENT_TIME32: {
- struct v4l2_event_time32 *ev32 = arg;
- struct v4l2_event ev = { };
-
- if (!(sd->flags & V4L2_SUBDEV_FL_HAS_EVENTS))
- return -ENOIOCTLCMD;
-
- rval = v4l2_event_dequeue(vfh, &ev, file->f_flags & O_NONBLOCK);
-
- *ev32 = (struct v4l2_event_time32) {
- .type = ev.type,
- .pending = ev.pending,
- .sequence = ev.sequence,
- .timestamp.tv_sec = ev.timestamp.tv_sec,
- .timestamp.tv_nsec = ev.timestamp.tv_nsec,
- .id = ev.id,
- };
-
- memcpy(&ev32->u, &ev.u, sizeof(ev.u));
- memcpy(&ev32->reserved, &ev.reserved, sizeof(ev.reserved));
-
- return rval;
- }
-
case VIDIOC_SUBSCRIBE_EVENT:
return v4l2_subdev_call(sd, core, subscribe_event, vfh, arg);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 291/700] media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (289 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 290/700] media: subdev: remove VIDIOC_DQEVENT_TIME32 handling Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 292/700] media: i2c: rdacm21: Fix OV10640 powerup Greg Kroah-Hartman
` (414 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dillon Min, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Dillon Min <dillon.minfei@gmail.com>
[ Upstream commit 5d11e6aad1811ea293ee2996cec9124f7fccb661 ]
The m2m_ctx resources was allocated by v4l2_m2m_ctx_init() in g2d_open()
should be freed from g2d_release() when it's not used.
Fix it
Fixes: 918847341af0 ("[media] v4l: add G2D driver for s5p device family")
Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/s5p-g2d/g2d.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index 15bcb7f6e113..1cb5eaabf340 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -276,6 +276,9 @@ static int g2d_release(struct file *file)
struct g2d_dev *dev = video_drvdata(file);
struct g2d_ctx *ctx = fh2ctx(file->private_data);
+ mutex_lock(&dev->mutex);
+ v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+ mutex_unlock(&dev->mutex);
v4l2_ctrl_handler_free(&ctx->ctrl_handler);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 292/700] media: i2c: rdacm21: Fix OV10640 powerup
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (290 preceding siblings ...)
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@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 293/700] media: i2c: rdacm21: Power up OV10640 before OV490 Greg Kroah-Hartman
` (413 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jacopo Mondi, Kieran Bingham,
Laurent Pinchart, Hans Verkuil, Mauro Carvalho Chehab,
Sasha Levin
From: Jacopo Mondi <jacopo+renesas@jmondi.org>
[ Upstream commit ff75332b260cd33cc19000fdb5d256d9db4470d1 ]
The OV10640 image sensor powerdown signal is controlled by the first
line of the OV490 GPIO pad #1, but the pad #0 identifier
OV490_GPIO_OUTPUT_VALUE0 was erroneously used. As a result the image
sensor powerdown signal was never asserted but was left floating and
kept high by an internal pull-up resistor, causing sporadic failures
during the image sensor startup phase.
Fix this by using the correct GPIO pad identifier and wait the mandatory
1.5 millisecond delay after the powerup lane is asserted. The reset
delay is not characterized in the chip manual if not as "255 XVCLK +
initialization". Wait for at least 3 milliseconds to guarantee the SCCB
bus is available.
While at it also fix the reset sequence, as the reset line was released
before the powerdown one, and the line was not cycled.
This commit fixes a sporadic start-up error triggered by a failure to
read the OV10640 chip ID:
rdacm21 8-0054: OV10640 ID mismatch: (0x01)
Fixes: a59f853b3b4b ("media: i2c: Add driver for RDACM21 camera module")
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/rdacm21.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/rdacm21.c b/drivers/media/i2c/rdacm21.c
index 179d107f494c..4b0dfd0a75e1 100644
--- a/drivers/media/i2c/rdacm21.c
+++ b/drivers/media/i2c/rdacm21.c
@@ -333,13 +333,19 @@ static int ov10640_initialize(struct rdacm21_device *dev)
{
u8 val;
- /* Power-up OV10640 by setting RESETB and PWDNB pins high. */
+ /* Enable GPIO0#0 (reset) and GPIO1#0 (pwdn) as output lines. */
ov490_write_reg(dev, OV490_GPIO_SEL0, OV490_GPIO0);
ov490_write_reg(dev, OV490_GPIO_SEL1, OV490_SPWDN0);
ov490_write_reg(dev, OV490_GPIO_DIRECTION0, OV490_GPIO0);
ov490_write_reg(dev, OV490_GPIO_DIRECTION1, OV490_SPWDN0);
+
+ /* Power up OV10640 and then reset it. */
+ ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE1, OV490_SPWDN0);
+ usleep_range(1500, 3000);
+
+ ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, 0x00);
+ usleep_range(1500, 3000);
ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, OV490_GPIO0);
- ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, OV490_SPWDN0);
usleep_range(3000, 5000);
/* Read OV10640 ID to test communications. */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 293/700] media: i2c: rdacm21: Power up OV10640 before OV490
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@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 294/700] hwmon: (lm70) Revert "hwmon: (lm70) Add support for ACPI" Greg Kroah-Hartman
` (412 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jacopo Mondi, Laurent Pinchart,
Kieran Bingham, Hans Verkuil, Mauro Carvalho Chehab, Sasha Levin
From: Jacopo Mondi <jacopo+renesas@jmondi.org>
[ Upstream commit 2b821698dc73c00719e3dc367db712f727bbda85 ]
The current RDACM21 initialization routine powers up the OV10640 image
sensor after the OV490 ISP. The ISP is programmed with a firmware loaded
from an embedded serial flash that (most probably) tries to interact and
program also the image sensor connected to the ISP.
As described in commit "media: i2c: rdacm21: Fix OV10640 powerup" the
image sensor powerdown signal is kept high by an internal pull up
resistor and occasionally fails to startup correctly if the powerdown
line is not asserted explicitly. Failures in the OV10640 startup causes
the OV490 firmware to fail to boot correctly resulting in the camera
module initialization to fail consequentially.
Fix this by powering up the OV10640 image sensor before testing the
OV490 firmware boot completion, by splitting the ov10640_initialize()
function in an ov10640_power_up() one and an ov10640_check_id() one.
Also make sure the OV10640 identification procedure gives enough time to
the image sensor to resume after the programming phase performed by the
OV490 firmware by repeating the ID read procedure.
This commit fixes a sporadic start-up error triggered by a failure to
detect the OV490 firmware boot completion:
rdacm21 8-0054: Timeout waiting for firmware boot
[hverkuil: fixed two typos in commit log]
Fixes: a59f853b3b4b ("media: i2c: Add driver for RDACM21 camera module")
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/i2c/rdacm21.c | 46 ++++++++++++++++++++++++++-----------
1 file changed, 32 insertions(+), 14 deletions(-)
diff --git a/drivers/media/i2c/rdacm21.c b/drivers/media/i2c/rdacm21.c
index 4b0dfd0a75e1..50e2af522760 100644
--- a/drivers/media/i2c/rdacm21.c
+++ b/drivers/media/i2c/rdacm21.c
@@ -69,6 +69,7 @@
#define OV490_ISP_VSIZE_LOW 0x80820062
#define OV490_ISP_VSIZE_HIGH 0x80820063
+#define OV10640_PID_TIMEOUT 20
#define OV10640_ID_HIGH 0xa6
#define OV10640_CHIP_ID 0x300a
#define OV10640_PIXEL_RATE 55000000
@@ -329,10 +330,8 @@ static const struct v4l2_subdev_ops rdacm21_subdev_ops = {
.pad = &rdacm21_subdev_pad_ops,
};
-static int ov10640_initialize(struct rdacm21_device *dev)
+static void ov10640_power_up(struct rdacm21_device *dev)
{
- u8 val;
-
/* Enable GPIO0#0 (reset) and GPIO1#0 (pwdn) as output lines. */
ov490_write_reg(dev, OV490_GPIO_SEL0, OV490_GPIO0);
ov490_write_reg(dev, OV490_GPIO_SEL1, OV490_SPWDN0);
@@ -347,18 +346,35 @@ static int ov10640_initialize(struct rdacm21_device *dev)
usleep_range(1500, 3000);
ov490_write_reg(dev, OV490_GPIO_OUTPUT_VALUE0, OV490_GPIO0);
usleep_range(3000, 5000);
+}
- /* Read OV10640 ID to test communications. */
- ov490_write_reg(dev, OV490_SCCB_SLAVE0_DIR, OV490_SCCB_SLAVE_READ);
- ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_HIGH, OV10640_CHIP_ID >> 8);
- ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_LOW, OV10640_CHIP_ID & 0xff);
-
- /* Trigger SCCB slave transaction and give it some time to complete. */
- ov490_write_reg(dev, OV490_HOST_CMD, OV490_HOST_CMD_TRIGGER);
- usleep_range(1000, 1500);
+static int ov10640_check_id(struct rdacm21_device *dev)
+{
+ unsigned int i;
+ u8 val;
- ov490_read_reg(dev, OV490_SCCB_SLAVE0_DIR, &val);
- if (val != OV10640_ID_HIGH) {
+ /* Read OV10640 ID to test communications. */
+ for (i = 0; i < OV10640_PID_TIMEOUT; ++i) {
+ ov490_write_reg(dev, OV490_SCCB_SLAVE0_DIR,
+ OV490_SCCB_SLAVE_READ);
+ ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_HIGH,
+ OV10640_CHIP_ID >> 8);
+ ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_LOW,
+ OV10640_CHIP_ID & 0xff);
+
+ /*
+ * Trigger SCCB slave transaction and give it some time
+ * to complete.
+ */
+ ov490_write_reg(dev, OV490_HOST_CMD, OV490_HOST_CMD_TRIGGER);
+ usleep_range(1000, 1500);
+
+ ov490_read_reg(dev, OV490_SCCB_SLAVE0_DIR, &val);
+ if (val == OV10640_ID_HIGH)
+ break;
+ usleep_range(1000, 1500);
+ }
+ if (i == OV10640_PID_TIMEOUT) {
dev_err(dev->dev, "OV10640 ID mismatch: (0x%02x)\n", val);
return -ENODEV;
}
@@ -374,6 +390,8 @@ static int ov490_initialize(struct rdacm21_device *dev)
unsigned int i;
int ret;
+ ov10640_power_up(dev);
+
/*
* Read OV490 Id to test communications. Give it up to 40msec to
* exit from reset.
@@ -411,7 +429,7 @@ static int ov490_initialize(struct rdacm21_device *dev)
return -ENODEV;
}
- ret = ov10640_initialize(dev);
+ ret = ov10640_check_id(dev);
if (ret)
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 294/700] hwmon: (lm70) Revert "hwmon: (lm70) Add support for ACPI"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (292 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 293/700] media: i2c: rdacm21: Power up OV10640 before OV490 Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 295/700] hwmon: (max31722) Remove non-standard ACPI device IDs Greg Kroah-Hartman
` (411 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andrej Picej, Guenter Roeck, Sasha Levin
From: Guenter Roeck <linux@roeck-us.net>
[ Upstream commit ac61c8aae446b9c0fe18981fe721d4a43e283ad6 ]
This reverts commit b58bd4c6dfe709646ed9efcbba2a70643f9bc873.
None of the ACPI IDs introduced with the reverted patch is a valid ACPI
device ID. Any ACPI users of this driver are advised to use PRP0001 and
a devicetree-compatible device identification.
Fixes: b58bd4c6dfe7 ("hwmon: (lm70) Add support for ACPI")
Cc: Andrej Picej <andpicej@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwmon/lm70.c | 26 +-------------------------
1 file changed, 1 insertion(+), 25 deletions(-)
diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
index 40eab3349904..6b884ea00987 100644
--- a/drivers/hwmon/lm70.c
+++ b/drivers/hwmon/lm70.c
@@ -22,10 +22,10 @@
#include <linux/hwmon.h>
#include <linux/mutex.h>
#include <linux/mod_devicetable.h>
+#include <linux/of.h>
#include <linux/property.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
-#include <linux/acpi.h>
#define DRVNAME "lm70"
@@ -148,29 +148,6 @@ static const struct of_device_id lm70_of_ids[] = {
MODULE_DEVICE_TABLE(of, lm70_of_ids);
#endif
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id lm70_acpi_ids[] = {
- {
- .id = "LM000070",
- .driver_data = LM70_CHIP_LM70,
- },
- {
- .id = "TMP00121",
- .driver_data = LM70_CHIP_TMP121,
- },
- {
- .id = "LM000071",
- .driver_data = LM70_CHIP_LM71,
- },
- {
- .id = "LM000074",
- .driver_data = LM70_CHIP_LM74,
- },
- {},
-};
-MODULE_DEVICE_TABLE(acpi, lm70_acpi_ids);
-#endif
-
static int lm70_probe(struct spi_device *spi)
{
struct device *hwmon_dev;
@@ -217,7 +194,6 @@ static struct spi_driver lm70_driver = {
.driver = {
.name = "lm70",
.of_match_table = of_match_ptr(lm70_of_ids),
- .acpi_match_table = ACPI_PTR(lm70_acpi_ids),
},
.id_table = lm70_ids,
.probe = lm70_probe,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 295/700] hwmon: (max31722) Remove non-standard ACPI device IDs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (293 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 294/700] hwmon: (lm70) Revert "hwmon: (lm70) Add support for ACPI" Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 296/700] hwmon: (max31790) Fix fan speed reporting for fan7..12 Greg Kroah-Hartman
` (410 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Guenter Roeck, Sasha Levin
From: Guenter Roeck <linux@roeck-us.net>
[ Upstream commit 97387c2f06bcfd79d04a848d35517b32ee6dca7c ]
Valid Maxim Integrated ACPI device IDs would start with MXIM,
not with MAX1. On top of that, ACPI device IDs reflecting chip names
are almost always invalid.
Remove the invalid ACPI IDs.
Fixes: 04e1e70afec6 ("hwmon: (max31722) Add support for MAX31722/MAX31723 temperature sensors")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwmon/max31722.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/drivers/hwmon/max31722.c b/drivers/hwmon/max31722.c
index 062eceb7be0d..613338cbcb17 100644
--- a/drivers/hwmon/max31722.c
+++ b/drivers/hwmon/max31722.c
@@ -6,7 +6,6 @@
* Copyright (c) 2016, Intel Corporation.
*/
-#include <linux/acpi.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/kernel.h>
@@ -133,20 +132,12 @@ static const struct spi_device_id max31722_spi_id[] = {
{"max31723", 0},
{}
};
-
-static const struct acpi_device_id __maybe_unused max31722_acpi_id[] = {
- {"MAX31722", 0},
- {"MAX31723", 0},
- {}
-};
-
MODULE_DEVICE_TABLE(spi, max31722_spi_id);
static struct spi_driver max31722_driver = {
.driver = {
.name = "max31722",
.pm = &max31722_pm_ops,
- .acpi_match_table = ACPI_PTR(max31722_acpi_id),
},
.probe = max31722_probe,
.remove = max31722_remove,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 296/700] hwmon: (max31790) Fix fan speed reporting for fan7..12
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` (294 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 295/700] hwmon: (max31722) Remove non-standard ACPI device IDs Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 297/700] KVM: nVMX: Sync all PGDs on nested transition with shadow paging Greg Kroah-Hartman
` (409 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Kundrát,
Václav Kubernát, Guenter Roeck, Sasha Levin
From: Guenter Roeck <linux@roeck-us.net>
[ Upstream commit cbbf244f0515af3472084f22b6213121b4a63835 ]
Fans 7..12 do not have their own set of configuration registers.
So far the code ignored that and read beyond the end of the configuration
register range to get the tachometer period. This resulted in more or less
random fan speed values for those fans.
The datasheet is quite vague when it comes to defining the tachometer
period for fans 7..12. Experiments confirm that the period is the same
for both fans associated with a given set of configuration registers.
Fixes: 54187ff9d766 ("hwmon: (max31790) Convert to use new hwmon registration API")
Fixes: 195a4b4298a7 ("hwmon: Driver for Maxim MAX31790")
Cc: Jan Kundrát <jan.kundrat@cesnet.cz>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Cc: Václav Kubernát <kubernat@cesnet.cz>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210526154022.3223012-2-linux@roeck-us.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwmon/max31790.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c
index 76aa96f5b984..67677c437768 100644
--- a/drivers/hwmon/max31790.c
+++ b/drivers/hwmon/max31790.c
@@ -171,7 +171,7 @@ static int max31790_read_fan(struct device *dev, u32 attr, int channel,
switch (attr) {
case hwmon_fan_input:
- sr = get_tach_period(data->fan_dynamics[channel]);
+ sr = get_tach_period(data->fan_dynamics[channel % NR_CHANNEL]);
rpm = RPM_FROM_REG(data->tach[channel], sr);
*val = rpm;
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 297/700] KVM: nVMX: Sync all PGDs on nested transition with shadow paging
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (295 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 296/700] hwmon: (max31790) Fix fan speed reporting for fan7..12 Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 298/700] KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap Greg Kroah-Hartman
` (408 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Paolo Bonzini,
Sasha Levin
From: Sean Christopherson <seanjc@google.com>
[ Upstream commit 07ffaf343e34b555c9e7ea39a9c81c439a706f13 ]
Trigger a full TLB flush on behalf of the guest on nested VM-Enter and
VM-Exit when VPID is disabled for L2. kvm_mmu_new_pgd() syncs only the
current PGD, which can theoretically leave stale, unsync'd entries in a
previous guest PGD, which could be consumed if L2 is allowed to load CR3
with PCID_NOFLUSH=1.
Rename KVM_REQ_HV_TLB_FLUSH to KVM_REQ_TLB_FLUSH_GUEST so that it can
be utilized for its obvious purpose of emulating a guest TLB flush.
Note, there is no change the actual TLB flush executed by KVM, even
though the fast PGD switch uses KVM_REQ_TLB_FLUSH_CURRENT. When VPID is
disabled for L2, vpid02 is guaranteed to be '0', and thus
nested_get_vpid02() will return the VPID that is shared by L1 and L2.
Generate the request outside of kvm_mmu_new_pgd(), as getting the common
helper to correctly identify which requested is needed is quite painful.
E.g. using KVM_REQ_TLB_FLUSH_GUEST when nested EPT is in play is wrong as
a TLB flush from the L1 kernel's perspective does not invalidate EPT
mappings. And, by using KVM_REQ_TLB_FLUSH_GUEST, nVMX can do future
simplification by moving the logic into nested_vmx_transition_tlb_flush().
Fixes: 41fab65e7c44 ("KVM: nVMX: Skip MMU sync on nested VMX transition when possible")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210609234235.1244004-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/hyperv.c | 2 +-
arch/x86/kvm/vmx/nested.c | 17 ++++++++++++-----
arch/x86/kvm/x86.c | 2 +-
4 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 0702adf2460b..0758ff3008c6 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -85,7 +85,7 @@
#define KVM_REQ_APICV_UPDATE \
KVM_ARCH_REQ_FLAGS(25, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_TLB_FLUSH_CURRENT KVM_ARCH_REQ(26)
-#define KVM_REQ_HV_TLB_FLUSH \
+#define KVM_REQ_TLB_FLUSH_GUEST \
KVM_ARCH_REQ_FLAGS(27, KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_APF_READY KVM_ARCH_REQ(28)
#define KVM_REQ_MSR_FILTER_CHANGED KVM_ARCH_REQ(29)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index f00830e5202f..fdd1eca717fd 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1704,7 +1704,7 @@ static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, u64 ingpa, u16 rep_cnt, bool
* vcpu->arch.cr3 may not be up-to-date for running vCPUs so we can't
* analyze it here, flush TLB regardless of the specified address space.
*/
- kvm_make_vcpus_request_mask(kvm, KVM_REQ_HV_TLB_FLUSH,
+ kvm_make_vcpus_request_mask(kvm, KVM_REQ_TLB_FLUSH_GUEST,
NULL, vcpu_mask, &hv_vcpu->tlb_flush);
ret_success:
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 8cb5a95e0c54..eca3db08d183 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -1132,12 +1132,19 @@ static int nested_vmx_load_cr3(struct kvm_vcpu *vcpu, unsigned long cr3, bool ne
/*
* Unconditionally skip the TLB flush on fast CR3 switch, all TLB
- * flushes are handled by nested_vmx_transition_tlb_flush(). See
- * nested_vmx_transition_mmu_sync for details on skipping the MMU sync.
+ * flushes are handled by nested_vmx_transition_tlb_flush().
*/
- if (!nested_ept)
- kvm_mmu_new_pgd(vcpu, cr3, true,
- !nested_vmx_transition_mmu_sync(vcpu));
+ if (!nested_ept) {
+ kvm_mmu_new_pgd(vcpu, cr3, true, true);
+
+ /*
+ * A TLB flush on VM-Enter/VM-Exit flushes all linear mappings
+ * across all PCIDs, i.e. all PGDs need to be synchronized.
+ * See nested_vmx_transition_mmu_sync() for more details.
+ */
+ if (nested_vmx_transition_mmu_sync(vcpu))
+ kvm_make_request(KVM_REQ_TLB_FLUSH_GUEST, vcpu);
+ }
vcpu->arch.cr3 = cr3;
kvm_register_mark_available(vcpu, VCPU_EXREG_CR3);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d46a6182d0e9..615dd236e842 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -9022,7 +9022,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
}
if (kvm_check_request(KVM_REQ_TLB_FLUSH_CURRENT, vcpu))
kvm_vcpu_flush_tlb_current(vcpu);
- if (kvm_check_request(KVM_REQ_HV_TLB_FLUSH, vcpu))
+ if (kvm_check_request(KVM_REQ_TLB_FLUSH_GUEST, vcpu))
kvm_vcpu_flush_tlb_guest(vcpu);
if (kvm_check_request(KVM_REQ_REPORT_TPR_ACCESS, vcpu)) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 298/700] KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (296 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 297/700] KVM: nVMX: Sync all PGDs on nested transition with shadow paging Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 299/700] KVM: nVMX: Dont clobber nested MMUs A/D status on EPTP switch Greg Kroah-Hartman
` (407 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Paolo Bonzini,
Sasha Levin
From: Sean Christopherson <seanjc@google.com>
[ Upstream commit 0e75225dfa4c5d5d51291f54a3d2d5895bad38da ]
Use BIT_ULL() instead of an open-coded shift to check whether or not a
function is enabled in L1's VMFUNC bitmap. This is a benign bug as KVM
supports only bit 0, and will fail VM-Enter if any other bits are set,
i.e. bits 63:32 are guaranteed to be zero.
Note, "function" is bounded by hardware as VMFUNC will #UD before taking
a VM-Exit if the function is greater than 63.
Before:
if ((vmcs12->vm_function_control & (1 << function)) == 0)
0x000000000001a916 <+118>: mov $0x1,%eax
0x000000000001a91b <+123>: shl %cl,%eax
0x000000000001a91d <+125>: cltq
0x000000000001a91f <+127>: and 0x128(%rbx),%rax
After:
if (!(vmcs12->vm_function_control & BIT_ULL(function & 63)))
0x000000000001a955 <+117>: mov 0x128(%rbx),%rdx
0x000000000001a95c <+124>: bt %rax,%rdx
Fixes: 27c42a1bb867 ("KVM: nVMX: Enable VMFUNC for the L1 hypervisor")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210609234235.1244004-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kvm/vmx/nested.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index eca3db08d183..d3774d79916d 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5524,7 +5524,7 @@ static int handle_vmfunc(struct kvm_vcpu *vcpu)
}
vmcs12 = get_vmcs12(vcpu);
- if ((vmcs12->vm_function_control & (1 << function)) == 0)
+ if (!(vmcs12->vm_function_control & BIT_ULL(function)))
goto fail;
switch (function) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 299/700] KVM: nVMX: Dont clobber nested MMUs A/D status on EPTP switch
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (297 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 298/700] KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 300/700] KVM: x86/mmu: Fix return value in tdp_mmu_map_handle_target_level() Greg Kroah-Hartman
` (406 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Paolo Bonzini,
Sasha Levin
From: Sean Christopherson <seanjc@google.com>
[ Upstream commit 272b0a998d084e7667284bdd2d0c675c6a2d11de ]
Drop bogus logic that incorrectly clobbers the accessed/dirty enabling
status of the nested MMU on an EPTP switch. When nested EPT is enabled,
walk_mmu points at L2's _legacy_ page tables, not L1's EPT for L2.
This is likely a benign bug, as mmu->ept_ad is never consumed (since the
MMU is not a nested EPT MMU), and stuffing mmu_role.base.ad_disabled will
never propagate into future shadow pages since the nested MMU isn't used
to map anything, just to walk L2's page tables.
Note, KVM also does a full MMU reload, i.e. the guest_mmu will be
recreated using the new EPTP, and thus any change in A/D enabling will be
properly recognized in the relevant MMU.
Fixes: 41ab93727467 ("KVM: nVMX: Emulate EPTP switching for the L1 hypervisor")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210609234235.1244004-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kvm/vmx/nested.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index d3774d79916d..618dcf11d688 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5472,8 +5472,6 @@ static int nested_vmx_eptp_switching(struct kvm_vcpu *vcpu,
{
u32 index = kvm_rcx_read(vcpu);
u64 new_eptp;
- bool accessed_dirty;
- struct kvm_mmu *mmu = vcpu->arch.walk_mmu;
if (!nested_cpu_has_eptp_switching(vmcs12) ||
!nested_cpu_has_ept(vmcs12))
@@ -5482,13 +5480,10 @@ static int nested_vmx_eptp_switching(struct kvm_vcpu *vcpu,
if (index >= VMFUNC_EPTP_ENTRIES)
return 1;
-
if (kvm_vcpu_read_guest_page(vcpu, vmcs12->eptp_list_address >> PAGE_SHIFT,
&new_eptp, index * 8, 8))
return 1;
- accessed_dirty = !!(new_eptp & VMX_EPTP_AD_ENABLE_BIT);
-
/*
* If the (L2) guest does a vmfunc to the currently
* active ept pointer, we don't have to do anything else
@@ -5497,8 +5492,6 @@ static int nested_vmx_eptp_switching(struct kvm_vcpu *vcpu,
if (!nested_vmx_check_eptp(vcpu, new_eptp))
return 1;
- mmu->ept_ad = accessed_dirty;
- mmu->mmu_role.base.ad_disabled = !accessed_dirty;
vmcs12->ept_pointer = new_eptp;
kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 300/700] KVM: x86/mmu: Fix return value in tdp_mmu_map_handle_target_level()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (298 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 299/700] KVM: nVMX: Dont clobber nested MMUs A/D status on EPTP switch Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 301/700] KVM: x86/mmu: Drop redundant trace_kvm_mmu_set_spte() in the TDP MMU Greg Kroah-Hartman
` (405 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Ben Gardon,
Kai Huang, Paolo Bonzini, Sasha Levin
From: Kai Huang <kai.huang@intel.com>
[ Upstream commit 57a3e96d6d17ae5ac9861ef34af024a627f1c3bb ]
Currently tdp_mmu_map_handle_target_level() returns 0, which is
RET_PF_RETRY, when page fault is actually fixed. This makes
kvm_tdp_mmu_map() also return RET_PF_RETRY in this case, instead of
RET_PF_FIXED. Fix by initializing ret to RET_PF_FIXED.
Note that kvm_mmu_page_fault() resumes guest on both RET_PF_RETRY and
RET_PF_FIXED, which means in practice returning the two won't make
difference, so this fix alone won't be necessary for stable tree.
Fixes: bb18842e2111 ("kvm: x86/mmu: Add TDP MMU PF handler")
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Kai Huang <kai.huang@intel.com>
Message-Id: <f9e8956223a586cd28c090879a8ff40f5eb6d609.1623717884.git.kai.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kvm/mmu/tdp_mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 018d82e73e31..0aca7dcbcbf9 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -745,7 +745,7 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, int write,
kvm_pfn_t pfn, bool prefault)
{
u64 new_spte;
- int ret = 0;
+ int ret = RET_PF_FIXED;
int make_spte_ret = 0;
if (unlikely(is_noslot_pfn(pfn)))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 301/700] KVM: x86/mmu: Drop redundant trace_kvm_mmu_set_spte() in the TDP MMU
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (299 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 300/700] KVM: x86/mmu: Fix return value in tdp_mmu_map_handle_target_level() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 302/700] KVM: x86/mmu: Fix pf_fixed count in tdp_mmu_map_handle_target_level() Greg Kroah-Hartman
` (404 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ben Gardon, Sean Christopherson,
Paolo Bonzini, Sasha Levin
From: Sean Christopherson <seanjc@google.com>
[ Upstream commit 3849e0924ef14a245aa292ecaa9accdc4792012c ]
Remove TDP MMU's call to trace_kvm_mmu_set_spte() that is done for both
shadow-present SPTEs and MMIO SPTEs. It's fully redundant for the
former, and unnecessary for the latter. This aligns TDP MMU tracing
behavior with that of the legacy MMU.
Fixes: 33dd3574f5fe ("kvm: x86/mmu: Add existing trace points to TDP MMU")
Cc: Ben Gardon <bgardon@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210225204749.1512652-9-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kvm/mmu/tdp_mmu.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 0aca7dcbcbf9..7cfb55788df5 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -777,12 +777,11 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, int write,
trace_mark_mmio_spte(rcu_dereference(iter->sptep), iter->gfn,
new_spte);
ret = RET_PF_EMULATE;
- } else
+ } else {
trace_kvm_mmu_set_spte(iter->level, iter->gfn,
rcu_dereference(iter->sptep));
+ }
- trace_kvm_mmu_set_spte(iter->level, iter->gfn,
- rcu_dereference(iter->sptep));
if (!prefault)
vcpu->stat.pf_fixed++;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 302/700] KVM: x86/mmu: Fix pf_fixed count in tdp_mmu_map_handle_target_level()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (300 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 301/700] KVM: x86/mmu: Drop redundant trace_kvm_mmu_set_spte() in the TDP MMU Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 303/700] perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number Greg Kroah-Hartman
` (403 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sean Christopherson, Kai Huang,
Paolo Bonzini, Sasha Levin
From: Kai Huang <kai.huang@intel.com>
[ Upstream commit 857f84743e4b78500afae010d866675642e18e90 ]
Currently pf_fixed is not increased when prefault is true. This is not
correct, since prefault here really means "async page fault completed".
In that case, the original page fault from the guest was morphed into as
async page fault and pf_fixed was not increased. So when prefault
indicates async page fault is completed, pf_fixed should be increased.
Additionally, currently pf_fixed is also increased even when page fault
is spurious, while legacy MMU increases pf_fixed when page fault returns
RET_PF_EMULATE or RET_PF_FIXED.
To fix above two issues, change to increase pf_fixed when return value
is not RET_PF_SPURIOUS (RET_PF_RETRY has already been ruled out by
reaching here).
More information:
https://lore.kernel.org/kvm/cover.1620200410.git.kai.huang@intel.com/T/#mbb5f8083e58a2cd262231512b9211cbe70fc3bd5
Fixes: bb18842e2111 ("kvm: x86/mmu: Add TDP MMU PF handler")
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Kai Huang <kai.huang@intel.com>
Message-Id: <2ea8b7f5d4f03c99b32bc56fc982e1e4e3d3fc6b.1623717884.git.kai.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kvm/mmu/tdp_mmu.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 7cfb55788df5..5c83b912becc 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -782,7 +782,11 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu, int write,
rcu_dereference(iter->sptep));
}
- if (!prefault)
+ /*
+ * Increase pf_fixed in both RET_PF_EMULATE and RET_PF_FIXED to be
+ * consistent with legacy MMU behavior.
+ */
+ if (ret != RET_PF_SPURIOUS)
vcpu->stat.pf_fixed++;
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 303/700] perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (301 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 302/700] KVM: x86/mmu: Fix pf_fixed count in tdp_mmu_map_handle_target_level() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 304/700] KVM: arm64: Dont zero the cycle count register when PMCR_EL0.P is set Greg Kroah-Hartman
` (402 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tuan Phan, Robin Murphy, Will Deacon,
Sasha Levin
From: Tuan Phan <tuanphan@os.amperecomputing.com>
[ Upstream commit 4e16f283edc289820e9b2d6f617ed8e514ee8396 ]
When multiple dtcs share the same IRQ number, the irq_friend which
used to refer to dtc object gets calculated incorrect which leads
to invalid pointer.
Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver")
Signed-off-by: Tuan Phan <tuanphan@os.amperecomputing.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/1623946129-3290-1-git-send-email-tuanphan@os.amperecomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/perf/arm-cmn.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 1328159fe564..a4339426664e 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -1212,7 +1212,7 @@ static int arm_cmn_init_irqs(struct arm_cmn *cmn)
irq = cmn->dtc[i].irq;
for (j = i; j--; ) {
if (cmn->dtc[j].irq == irq) {
- cmn->dtc[j].irq_friend = j - i;
+ cmn->dtc[j].irq_friend = i - j;
goto next;
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 304/700] KVM: arm64: Dont zero the cycle count register when PMCR_EL0.P is set
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (302 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 303/700] perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 305/700] regulator: hi655x: Fix pass wrong pointer to config.driver_data Greg Kroah-Hartman
` (401 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexandru Elisei, Marc Zyngier, Sasha Levin
From: Alexandru Elisei <alexandru.elisei@arm.com>
[ Upstream commit 2a71fabf6a1bc9162a84e18d6ab991230ca4d588 ]
According to ARM DDI 0487G.a, page D13-3895, setting the PMCR_EL0.P bit to
1 has the following effect:
"Reset all event counters accessible in the current Exception level, not
including PMCCNTR_EL0, to zero."
Similar behaviour is described for AArch32 on page G8-7022. Make it so.
Fixes: c01d6a18023b ("KVM: arm64: pmu: Only handle supported event counters")
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210618105139.83795-1-alexandru.elisei@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/kvm/pmu-emul.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index e9699d10d2bd..14957f7c7303 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -578,6 +578,7 @@ void kvm_pmu_handle_pmcr(struct kvm_vcpu *vcpu, u64 val)
kvm_pmu_set_counter_value(vcpu, ARMV8_PMU_CYCLE_IDX, 0);
if (val & ARMV8_PMU_PMCR_P) {
+ mask &= ~BIT(ARMV8_PMU_CYCLE_IDX);
for_each_set_bit(i, &mask, 32)
kvm_pmu_set_counter_value(vcpu, i, 0);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 305/700] regulator: hi655x: Fix pass wrong pointer to config.driver_data
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (303 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 304/700] KVM: arm64: Dont zero the cycle count register when PMCR_EL0.P is set Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 306/700] regulator: hi6421v600: Fix setting idle mode Greg Kroah-Hartman
` (400 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Axel Lin, Mark Brown, Sasha Levin
From: Axel Lin <axel.lin@ingics.com>
[ Upstream commit 61eb1b24f9e4f4e0725aa5f8164a932c933f3339 ]
Current code sets config.driver_data to a zero initialized regulator
which is obviously wrong. Fix it.
Fixes: 4618119b9be5 ("regulator: hi655x: enable regulator for hi655x PMIC")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210620132715.60215-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/regulator/hi655x-regulator.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/regulator/hi655x-regulator.c b/drivers/regulator/hi655x-regulator.c
index ac2ee2030211..b44f492a2b83 100644
--- a/drivers/regulator/hi655x-regulator.c
+++ b/drivers/regulator/hi655x-regulator.c
@@ -72,7 +72,7 @@ enum hi655x_regulator_id {
static int hi655x_is_enabled(struct regulator_dev *rdev)
{
unsigned int value = 0;
- struct hi655x_regulator *regulator = rdev_get_drvdata(rdev);
+ const struct hi655x_regulator *regulator = rdev_get_drvdata(rdev);
regmap_read(rdev->regmap, regulator->status_reg, &value);
return (value & rdev->desc->enable_mask);
@@ -80,7 +80,7 @@ static int hi655x_is_enabled(struct regulator_dev *rdev)
static int hi655x_disable(struct regulator_dev *rdev)
{
- struct hi655x_regulator *regulator = rdev_get_drvdata(rdev);
+ const struct hi655x_regulator *regulator = rdev_get_drvdata(rdev);
return regmap_write(rdev->regmap, regulator->disable_reg,
rdev->desc->enable_mask);
@@ -169,7 +169,6 @@ static const struct hi655x_regulator regulators[] = {
static int hi655x_regulator_probe(struct platform_device *pdev)
{
unsigned int i;
- struct hi655x_regulator *regulator;
struct hi655x_pmic *pmic;
struct regulator_config config = { };
struct regulator_dev *rdev;
@@ -180,22 +179,17 @@ static int hi655x_regulator_probe(struct platform_device *pdev)
return -ENODEV;
}
- regulator = devm_kzalloc(&pdev->dev, sizeof(*regulator), GFP_KERNEL);
- if (!regulator)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, regulator);
-
config.dev = pdev->dev.parent;
config.regmap = pmic->regmap;
- config.driver_data = regulator;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
+ config.driver_data = (void *) ®ulators[i];
+
rdev = devm_regulator_register(&pdev->dev,
®ulators[i].rdesc,
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
- regulator->rdesc.name);
+ regulators[i].rdesc.name);
return PTR_ERR(rdev);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 306/700] regulator: hi6421v600: Fix setting idle mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (304 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 305/700] regulator: hi655x: Fix pass wrong pointer to config.driver_data Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 307/700] btrfs: clear log tree recovering status if starting transaction fails Greg Kroah-Hartman
` (399 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Axel Lin, Mark Brown, Sasha Levin
From: Axel Lin <axel.lin@ingics.com>
[ Upstream commit 57c045bc727001c43b6a65adb0418aa7b3e6dbd0 ]
commit db27f8294cd7 changed eco_mode << (ffs(sreg->eco_mode_mask) - 1)
to sreg->eco_mode_mask << (ffs(sreg->eco_mode_mask) - 1) which is wrong.
Fix it by simply set val = sreg->eco_mode_mask.
In additional, sreg->eco_mode_mask can be 0 (LDO3, LDO33, LDO34).
Return -EINVAL if idle mode is not supported when sreg->eco_mode_mask is 0.
While at it, also use unsigned int for reg_val/val which is the expected
type for regmap_read and regmap_update_bits.
Fixes: db27f8294cd7 ("staging: regulator: hi6421v600-regulator: use shorter names for OF properties")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210619123423.4091429-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/hikey9xx/hi6421v600-regulator.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/hikey9xx/hi6421v600-regulator.c b/drivers/staging/hikey9xx/hi6421v600-regulator.c
index e10fe3058176..91136db3961e 100644
--- a/drivers/staging/hikey9xx/hi6421v600-regulator.c
+++ b/drivers/staging/hikey9xx/hi6421v600-regulator.c
@@ -129,7 +129,7 @@ static unsigned int hi6421_spmi_regulator_get_mode(struct regulator_dev *rdev)
{
struct hi6421_spmi_reg_info *sreg = rdev_get_drvdata(rdev);
struct hi6421_spmi_pmic *pmic = sreg->pmic;
- u32 reg_val;
+ unsigned int reg_val;
regmap_read(pmic->regmap, rdev->desc->enable_reg, ®_val);
@@ -144,14 +144,17 @@ static int hi6421_spmi_regulator_set_mode(struct regulator_dev *rdev,
{
struct hi6421_spmi_reg_info *sreg = rdev_get_drvdata(rdev);
struct hi6421_spmi_pmic *pmic = sreg->pmic;
- u32 val;
+ unsigned int val;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = 0;
break;
case REGULATOR_MODE_IDLE:
- val = sreg->eco_mode_mask << (ffs(sreg->eco_mode_mask) - 1);
+ if (!sreg->eco_mode_mask)
+ return -EINVAL;
+
+ val = sreg->eco_mode_mask;
break;
default:
return -EINVAL;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 307/700] btrfs: clear log tree recovering status if starting transaction fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (305 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 306/700] regulator: hi6421v600: Fix setting idle mode Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 308/700] x86/sev: Make sure IRQs are disabled while GHCB is active Greg Kroah-Hartman
` (398 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Qu Wenruo, Anand Jain, David Sterba,
Sasha Levin
From: David Sterba <dsterba@suse.com>
[ Upstream commit 1aeb6b563aea18cd55c73cf666d1d3245a00f08c ]
When a log recovery is in progress, lots of operations have to take that
into account, so we keep this status per tree during the operation. Long
time ago error handling revamp patch 79787eaab461 ("btrfs: replace many
BUG_ONs with proper error handling") removed clearing of the status in
an error branch. Add it back as was intended in e02119d5a7b4 ("Btrfs:
Add a write ahead tree log to optimize synchronous operations").
There are probably no visible effects, log replay is done only during
mount and if it fails all structures are cleared so the stale status
won't be kept.
Fixes: 79787eaab461 ("btrfs: replace many BUG_ONs with proper error handling")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/tree-log.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 276b5511ff80..f4b0aecdaac7 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -6365,6 +6365,7 @@ next:
error:
if (wc.trans)
btrfs_end_transaction(wc.trans);
+ clear_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags);
btrfs_free_path(path);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 308/700] x86/sev: Make sure IRQs are disabled while GHCB is active
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (306 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 307/700] btrfs: clear log tree recovering status if starting transaction fails Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 309/700] x86/sev: Split up runtime #VC handler for correct state tracking Greg Kroah-Hartman
` (397 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joerg Roedel, Borislav Petkov,
Peter Zijlstra (Intel),
Sasha Levin
From: Joerg Roedel <jroedel@suse.de>
[ Upstream commit d187f217335dba2b49fc9002aab2004e04acddee ]
The #VC handler only cares about IRQs being disabled while the GHCB is
active, as it must not be interrupted by something which could cause
another #VC while it holds the GHCB (NMI is the exception for which the
backup GHCB exits).
Make sure nothing interrupts the code path while the GHCB is active
by making sure that callers of __sev_{get,put}_ghcb() have disabled
interrupts upfront.
[ bp: Massage commit message. ]
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210618115409.22735-2-joro@8bytes.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kernel/sev-es.c | 34 ++++++++++++++++++++++------------
1 file changed, 22 insertions(+), 12 deletions(-)
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
index e0cdab7cb632..0b5e35a51804 100644
--- a/arch/x86/kernel/sev-es.c
+++ b/arch/x86/kernel/sev-es.c
@@ -12,7 +12,6 @@
#include <linux/sched/debug.h> /* For show_regs() */
#include <linux/percpu-defs.h>
#include <linux/mem_encrypt.h>
-#include <linux/lockdep.h>
#include <linux/printk.h>
#include <linux/mm_types.h>
#include <linux/set_memory.h>
@@ -180,11 +179,19 @@ void noinstr __sev_es_ist_exit(void)
this_cpu_write(cpu_tss_rw.x86_tss.ist[IST_INDEX_VC], *(unsigned long *)ist);
}
-static __always_inline struct ghcb *sev_es_get_ghcb(struct ghcb_state *state)
+/*
+ * Nothing shall interrupt this code path while holding the per-CPU
+ * GHCB. The backup GHCB is only for NMIs interrupting this path.
+ *
+ * Callers must disable local interrupts around it.
+ */
+static noinstr struct ghcb *__sev_get_ghcb(struct ghcb_state *state)
{
struct sev_es_runtime_data *data;
struct ghcb *ghcb;
+ WARN_ON(!irqs_disabled());
+
data = this_cpu_read(runtime_data);
ghcb = &data->ghcb_page;
@@ -201,7 +208,9 @@ static __always_inline struct ghcb *sev_es_get_ghcb(struct ghcb_state *state)
data->ghcb_active = false;
data->backup_ghcb_active = false;
+ instrumentation_begin();
panic("Unable to handle #VC exception! GHCB and Backup GHCB are already in use");
+ instrumentation_end();
}
/* Mark backup_ghcb active before writing to it */
@@ -452,11 +461,13 @@ static enum es_result vc_slow_virt_to_phys(struct ghcb *ghcb, struct es_em_ctxt
/* Include code shared with pre-decompression boot stage */
#include "sev-es-shared.c"
-static __always_inline void sev_es_put_ghcb(struct ghcb_state *state)
+static noinstr void __sev_put_ghcb(struct ghcb_state *state)
{
struct sev_es_runtime_data *data;
struct ghcb *ghcb;
+ WARN_ON(!irqs_disabled());
+
data = this_cpu_read(runtime_data);
ghcb = &data->ghcb_page;
@@ -480,7 +491,7 @@ void noinstr __sev_es_nmi_complete(void)
struct ghcb_state state;
struct ghcb *ghcb;
- ghcb = sev_es_get_ghcb(&state);
+ ghcb = __sev_get_ghcb(&state);
vc_ghcb_invalidate(ghcb);
ghcb_set_sw_exit_code(ghcb, SVM_VMGEXIT_NMI_COMPLETE);
@@ -490,7 +501,7 @@ void noinstr __sev_es_nmi_complete(void)
sev_es_wr_ghcb_msr(__pa_nodebug(ghcb));
VMGEXIT();
- sev_es_put_ghcb(&state);
+ __sev_put_ghcb(&state);
}
static u64 get_jump_table_addr(void)
@@ -502,7 +513,7 @@ static u64 get_jump_table_addr(void)
local_irq_save(flags);
- ghcb = sev_es_get_ghcb(&state);
+ ghcb = __sev_get_ghcb(&state);
vc_ghcb_invalidate(ghcb);
ghcb_set_sw_exit_code(ghcb, SVM_VMGEXIT_AP_JUMP_TABLE);
@@ -516,7 +527,7 @@ static u64 get_jump_table_addr(void)
ghcb_sw_exit_info_2_is_valid(ghcb))
ret = ghcb->save.sw_exit_info_2;
- sev_es_put_ghcb(&state);
+ __sev_put_ghcb(&state);
local_irq_restore(flags);
@@ -641,7 +652,7 @@ static void sev_es_ap_hlt_loop(void)
struct ghcb_state state;
struct ghcb *ghcb;
- ghcb = sev_es_get_ghcb(&state);
+ ghcb = __sev_get_ghcb(&state);
while (true) {
vc_ghcb_invalidate(ghcb);
@@ -658,7 +669,7 @@ static void sev_es_ap_hlt_loop(void)
break;
}
- sev_es_put_ghcb(&state);
+ __sev_put_ghcb(&state);
}
/*
@@ -1317,7 +1328,6 @@ DEFINE_IDTENTRY_VC_SAFE_STACK(exc_vmm_communication)
}
irq_state = irqentry_nmi_enter(regs);
- lockdep_assert_irqs_disabled();
instrumentation_begin();
/*
@@ -1326,7 +1336,7 @@ DEFINE_IDTENTRY_VC_SAFE_STACK(exc_vmm_communication)
* keep the IRQs disabled to protect us against concurrent TLB flushes.
*/
- ghcb = sev_es_get_ghcb(&state);
+ ghcb = __sev_get_ghcb(&state);
vc_ghcb_invalidate(ghcb);
result = vc_init_em_ctxt(&ctxt, regs, error_code);
@@ -1334,7 +1344,7 @@ DEFINE_IDTENTRY_VC_SAFE_STACK(exc_vmm_communication)
if (result == ES_OK)
result = vc_handle_exitcode(&ctxt, ghcb, error_code);
- sev_es_put_ghcb(&state);
+ __sev_put_ghcb(&state);
/* Done - now check the result */
switch (result) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 309/700] x86/sev: Split up runtime #VC handler for correct state tracking
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (307 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 308/700] x86/sev: Make sure IRQs are disabled while GHCB is active Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 310/700] sched/rt: Fix RT utilization tracking during policy change Greg Kroah-Hartman
` (396 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Zijlstra, Joerg Roedel,
Borislav Petkov, Sasha Levin
From: Joerg Roedel <jroedel@suse.de>
[ Upstream commit be1a5408868af341f61f93c191b5e346ee88c82a ]
Split up the #VC handler code into a from-user and a from-kernel part.
This allows clean and correct state tracking, as the #VC handler needs
to enter NMI-state when raised from kernel mode and plain IRQ state when
raised from user-mode.
Fixes: 62441a1fb532 ("x86/sev-es: Correctly track IRQ states in runtime #VC handler")
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210618115409.22735-3-joro@8bytes.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/entry/entry_64.S | 4 +-
arch/x86/include/asm/idtentry.h | 29 +++----
arch/x86/kernel/sev-es.c | 148 +++++++++++++++++---------------
3 files changed, 91 insertions(+), 90 deletions(-)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 400908dff42e..7aa1be30b647 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -506,7 +506,7 @@ SYM_CODE_START(\asmsym)
movq %rsp, %rdi /* pt_regs pointer */
- call \cfunc
+ call kernel_\cfunc
/*
* No need to switch back to the IST stack. The current stack is either
@@ -517,7 +517,7 @@ SYM_CODE_START(\asmsym)
/* Switch to the regular task stack */
.Lfrom_usermode_switch_stack_\@:
- idtentry_body safe_stack_\cfunc, has_error_code=1
+ idtentry_body user_\cfunc, has_error_code=1
_ASM_NOKPROBE(\asmsym)
SYM_CODE_END(\asmsym)
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
index 06b0789d61b9..0f1d17bb9d2f 100644
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -312,8 +312,8 @@ static __always_inline void __##func(struct pt_regs *regs)
*/
#define DECLARE_IDTENTRY_VC(vector, func) \
DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func); \
- __visible noinstr void ist_##func(struct pt_regs *regs, unsigned long error_code); \
- __visible noinstr void safe_stack_##func(struct pt_regs *regs, unsigned long error_code)
+ __visible noinstr void kernel_##func(struct pt_regs *regs, unsigned long error_code); \
+ __visible noinstr void user_##func(struct pt_regs *regs, unsigned long error_code)
/**
* DEFINE_IDTENTRY_IST - Emit code for IST entry points
@@ -355,33 +355,24 @@ static __always_inline void __##func(struct pt_regs *regs)
DEFINE_IDTENTRY_RAW_ERRORCODE(func)
/**
- * DEFINE_IDTENTRY_VC_SAFE_STACK - Emit code for VMM communication handler
- which runs on a safe stack.
+ * DEFINE_IDTENTRY_VC_KERNEL - Emit code for VMM communication handler
+ when raised from kernel mode
* @func: Function name of the entry point
*
* Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
*/
-#define DEFINE_IDTENTRY_VC_SAFE_STACK(func) \
- DEFINE_IDTENTRY_RAW_ERRORCODE(safe_stack_##func)
+#define DEFINE_IDTENTRY_VC_KERNEL(func) \
+ DEFINE_IDTENTRY_RAW_ERRORCODE(kernel_##func)
/**
- * DEFINE_IDTENTRY_VC_IST - Emit code for VMM communication handler
- which runs on the VC fall-back stack
+ * DEFINE_IDTENTRY_VC_USER - Emit code for VMM communication handler
+ when raised from user mode
* @func: Function name of the entry point
*
* Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
*/
-#define DEFINE_IDTENTRY_VC_IST(func) \
- DEFINE_IDTENTRY_RAW_ERRORCODE(ist_##func)
-
-/**
- * DEFINE_IDTENTRY_VC - Emit code for VMM communication handler
- * @func: Function name of the entry point
- *
- * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
- */
-#define DEFINE_IDTENTRY_VC(func) \
- DEFINE_IDTENTRY_RAW_ERRORCODE(func)
+#define DEFINE_IDTENTRY_VC_USER(func) \
+ DEFINE_IDTENTRY_RAW_ERRORCODE(user_##func)
#else /* CONFIG_X86_64 */
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
index 0b5e35a51804..f3202b2e3c15 100644
--- a/arch/x86/kernel/sev-es.c
+++ b/arch/x86/kernel/sev-es.c
@@ -759,7 +759,7 @@ void __init sev_es_init_vc_handling(void)
sev_es_setup_play_dead();
/* Secondary CPUs use the runtime #VC handler */
- initial_vc_handler = (unsigned long)safe_stack_exc_vmm_communication;
+ initial_vc_handler = (unsigned long)kernel_exc_vmm_communication;
}
static void __init vc_early_forward_exception(struct es_em_ctxt *ctxt)
@@ -1197,14 +1197,6 @@ static enum es_result vc_handle_trap_ac(struct ghcb *ghcb,
return ES_EXCEPTION;
}
-static __always_inline void vc_handle_trap_db(struct pt_regs *regs)
-{
- if (user_mode(regs))
- noist_exc_debug(regs);
- else
- exc_debug(regs);
-}
-
static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt,
struct ghcb *ghcb,
unsigned long exit_code)
@@ -1300,41 +1292,13 @@ static __always_inline bool on_vc_fallback_stack(struct pt_regs *regs)
return (sp >= __this_cpu_ist_bottom_va(VC2) && sp < __this_cpu_ist_top_va(VC2));
}
-/*
- * Main #VC exception handler. It is called when the entry code was able to
- * switch off the IST to a safe kernel stack.
- *
- * With the current implementation it is always possible to switch to a safe
- * stack because #VC exceptions only happen at known places, like intercepted
- * instructions or accesses to MMIO areas/IO ports. They can also happen with
- * code instrumentation when the hypervisor intercepts #DB, but the critical
- * paths are forbidden to be instrumented, so #DB exceptions currently also
- * only happen in safe places.
- */
-DEFINE_IDTENTRY_VC_SAFE_STACK(exc_vmm_communication)
+static bool vc_raw_handle_exception(struct pt_regs *regs, unsigned long error_code)
{
- irqentry_state_t irq_state;
struct ghcb_state state;
struct es_em_ctxt ctxt;
enum es_result result;
struct ghcb *ghcb;
-
- /*
- * Handle #DB before calling into !noinstr code to avoid recursive #DB.
- */
- if (error_code == SVM_EXIT_EXCP_BASE + X86_TRAP_DB) {
- vc_handle_trap_db(regs);
- return;
- }
-
- irq_state = irqentry_nmi_enter(regs);
- instrumentation_begin();
-
- /*
- * This is invoked through an interrupt gate, so IRQs are disabled. The
- * code below might walk page-tables for user or kernel addresses, so
- * keep the IRQs disabled to protect us against concurrent TLB flushes.
- */
+ bool ret = true;
ghcb = __sev_get_ghcb(&state);
@@ -1354,15 +1318,18 @@ DEFINE_IDTENTRY_VC_SAFE_STACK(exc_vmm_communication)
case ES_UNSUPPORTED:
pr_err_ratelimited("Unsupported exit-code 0x%02lx in early #VC exception (IP: 0x%lx)\n",
error_code, regs->ip);
- goto fail;
+ ret = false;
+ break;
case ES_VMM_ERROR:
pr_err_ratelimited("Failure in communication with VMM (exit-code 0x%02lx IP: 0x%lx)\n",
error_code, regs->ip);
- goto fail;
+ ret = false;
+ break;
case ES_DECODE_FAILED:
pr_err_ratelimited("Failed to decode instruction (exit-code 0x%02lx IP: 0x%lx)\n",
error_code, regs->ip);
- goto fail;
+ ret = false;
+ break;
case ES_EXCEPTION:
vc_forward_exception(&ctxt);
break;
@@ -1378,24 +1345,52 @@ DEFINE_IDTENTRY_VC_SAFE_STACK(exc_vmm_communication)
BUG();
}
-out:
- instrumentation_end();
- irqentry_nmi_exit(regs, irq_state);
+ return ret;
+}
- return;
+static __always_inline bool vc_is_db(unsigned long error_code)
+{
+ return error_code == SVM_EXIT_EXCP_BASE + X86_TRAP_DB;
+}
-fail:
- if (user_mode(regs)) {
- /*
- * Do not kill the machine if user-space triggered the
- * exception. Send SIGBUS instead and let user-space deal with
- * it.
- */
- force_sig_fault(SIGBUS, BUS_OBJERR, (void __user *)0);
- } else {
- pr_emerg("PANIC: Unhandled #VC exception in kernel space (result=%d)\n",
- result);
+/*
+ * Runtime #VC exception handler when raised from kernel mode. Runs in NMI mode
+ * and will panic when an error happens.
+ */
+DEFINE_IDTENTRY_VC_KERNEL(exc_vmm_communication)
+{
+ irqentry_state_t irq_state;
+
+ /*
+ * With the current implementation it is always possible to switch to a
+ * safe stack because #VC exceptions only happen at known places, like
+ * intercepted instructions or accesses to MMIO areas/IO ports. They can
+ * also happen with code instrumentation when the hypervisor intercepts
+ * #DB, but the critical paths are forbidden to be instrumented, so #DB
+ * exceptions currently also only happen in safe places.
+ *
+ * But keep this here in case the noinstr annotations are violated due
+ * to bug elsewhere.
+ */
+ if (unlikely(on_vc_fallback_stack(regs))) {
+ instrumentation_begin();
+ panic("Can't handle #VC exception from unsupported context\n");
+ instrumentation_end();
+ }
+
+ /*
+ * Handle #DB before calling into !noinstr code to avoid recursive #DB.
+ */
+ if (vc_is_db(error_code)) {
+ exc_debug(regs);
+ return;
+ }
+
+ irq_state = irqentry_nmi_enter(regs);
+ instrumentation_begin();
+
+ if (!vc_raw_handle_exception(regs, error_code)) {
/* Show some debug info */
show_regs(regs);
@@ -1406,23 +1401,38 @@ fail:
panic("Returned from Terminate-Request to Hypervisor\n");
}
- goto out;
+ instrumentation_end();
+ irqentry_nmi_exit(regs, irq_state);
}
-/* This handler runs on the #VC fall-back stack. It can cause further #VC exceptions */
-DEFINE_IDTENTRY_VC_IST(exc_vmm_communication)
+/*
+ * Runtime #VC exception handler when raised from user mode. Runs in IRQ mode
+ * and will kill the current task with SIGBUS when an error happens.
+ */
+DEFINE_IDTENTRY_VC_USER(exc_vmm_communication)
{
+ /*
+ * Handle #DB before calling into !noinstr code to avoid recursive #DB.
+ */
+ if (vc_is_db(error_code)) {
+ noist_exc_debug(regs);
+ return;
+ }
+
+ irqentry_enter_from_user_mode(regs);
instrumentation_begin();
- panic("Can't handle #VC exception from unsupported context\n");
- instrumentation_end();
-}
-DEFINE_IDTENTRY_VC(exc_vmm_communication)
-{
- if (likely(!on_vc_fallback_stack(regs)))
- safe_stack_exc_vmm_communication(regs, error_code);
- else
- ist_exc_vmm_communication(regs, error_code);
+ if (!vc_raw_handle_exception(regs, error_code)) {
+ /*
+ * Do not kill the machine if user-space triggered the
+ * exception. Send SIGBUS instead and let user-space deal with
+ * it.
+ */
+ force_sig_fault(SIGBUS, BUS_OBJERR, (void __user *)0);
+ }
+
+ instrumentation_end();
+ irqentry_exit_to_user_mode(regs);
}
bool __init handle_vc_boot_ghcb(struct pt_regs *regs)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 310/700] sched/rt: Fix RT utilization tracking during policy change
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (308 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 309/700] x86/sev: Split up runtime #VC handler for correct state tracking Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 311/700] sched/rt: Fix Deadline " Greg Kroah-Hartman
` (395 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vincent Donnefort,
Peter Zijlstra (Intel),
Vincent Guittot, Sasha Levin
From: Vincent Donnefort <vincent.donnefort@arm.com>
[ Upstream commit fecfcbc288e9f4923f40fd23ca78a6acdc7fdf6c ]
RT keeps track of the utilization on a per-rq basis with the structure
avg_rt. This utilization is updated during task_tick_rt(),
put_prev_task_rt() and set_next_task_rt(). However, when the current
running task changes its policy, set_next_task_rt() which would usually
take care of updating the utilization when the rq starts running RT tasks,
will not see a such change, leaving the avg_rt structure outdated. When
that very same task will be dequeued later, put_prev_task_rt() will then
update the utilization, based on a wrong last_update_time, leading to a
huge spike in the RT utilization signal.
The signal would eventually recover from this issue after few ms. Even if
no RT tasks are run, avg_rt is also updated in __update_blocked_others().
But as the CPU capacity depends partly on the avg_rt, this issue has
nonetheless a significant impact on the scheduler.
Fix this issue by ensuring a load update when a running task changes
its policy to RT.
Fixes: 371bf427 ("sched/rt: Add rt_rq utilization tracking")
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/1624271872-211872-2-git-send-email-vincent.donnefort@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/rt.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 8f720b71d13d..e617287052d5 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2331,13 +2331,20 @@ void __init init_sched_rt_class(void)
static void switched_to_rt(struct rq *rq, struct task_struct *p)
{
/*
- * If we are already running, then there's nothing
- * that needs to be done. But if we are not running
- * we may need to preempt the current running task.
- * If that current running task is also an RT task
+ * If we are running, update the avg_rt tracking, as the running time
+ * will now on be accounted into the latter.
+ */
+ if (task_current(rq, p)) {
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 0);
+ return;
+ }
+
+ /*
+ * If we are not running we may need to preempt the current
+ * running task. If that current running task is also an RT task
* then see if we can move to another run queue.
*/
- if (task_on_rq_queued(p) && rq->curr != p) {
+ if (task_on_rq_queued(p)) {
#ifdef CONFIG_SMP
if (p->nr_cpus_allowed > 1 && rq->rt.overloaded)
rt_queue_push_tasks(rq);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 311/700] sched/rt: Fix Deadline utilization tracking during policy change
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (309 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 310/700] sched/rt: Fix RT utilization tracking during policy change Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 312/700] sched/uclamp: Fix uclamp_tg_restrict() Greg Kroah-Hartman
` (394 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vincent Donnefort,
Peter Zijlstra (Intel),
Vincent Guittot, Sasha Levin
From: Vincent Donnefort <vincent.donnefort@arm.com>
[ Upstream commit d7d607096ae6d378b4e92d49946d22739c047d4c ]
DL keeps track of the utilization on a per-rq basis with the structure
avg_dl. This utilization is updated during task_tick_dl(),
put_prev_task_dl() and set_next_task_dl(). However, when the current
running task changes its policy, set_next_task_dl() which would usually
take care of updating the utilization when the rq starts running DL
tasks, will not see a such change, leaving the avg_dl structure outdated.
When that very same task will be dequeued later, put_prev_task_dl() will
then update the utilization, based on a wrong last_update_time, leading to
a huge spike in the DL utilization signal.
The signal would eventually recover from this issue after few ms. Even
if no DL tasks are run, avg_dl is also updated in
__update_blocked_others(). But as the CPU capacity depends partly on the
avg_dl, this issue has nonetheless a significant impact on the scheduler.
Fix this issue by ensuring a load update when a running task changes
its policy to DL.
Fixes: 3727e0e ("sched/dl: Add dl_rq utilization tracking")
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/1624271872-211872-3-git-send-email-vincent.donnefort@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/deadline.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index aac3539aa0fe..78b3bdcb84c1 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -2486,6 +2486,8 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p)
check_preempt_curr_dl(rq, p, 0);
else
resched_curr(rq);
+ } else {
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 0);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 312/700] sched/uclamp: Fix uclamp_tg_restrict()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (310 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 311/700] sched/rt: Fix Deadline " Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 313/700] lockdep: Fix wait-type for empty stack Greg Kroah-Hartman
` (393 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Xuewen Yan, Qais Yousef,
Peter Zijlstra (Intel),
Sasha Levin
From: Qais Yousef <qais.yousef@arm.com>
[ Upstream commit 0213b7083e81f4acd69db32cb72eb4e5f220329a ]
Now cpu.uclamp.min acts as a protection, we need to make sure that the
uclamp request of the task is within the allowed range of the cgroup,
that is it is clamp()'ed correctly by tg->uclamp[UCLAMP_MIN] and
tg->uclamp[UCLAMP_MAX].
As reported by Xuewen [1] we can have some corner cases where there's
inversion between uclamp requested by task (p) and the uclamp values of
the taskgroup it's attached to (tg). Following table demonstrates
2 corner cases:
| p | tg | effective
-----------+-----+------+-----------
CASE 1
-----------+-----+------+-----------
uclamp_min | 60% | 0% | 60%
-----------+-----+------+-----------
uclamp_max | 80% | 50% | 50%
-----------+-----+------+-----------
CASE 2
-----------+-----+------+-----------
uclamp_min | 0% | 30% | 30%
-----------+-----+------+-----------
uclamp_max | 20% | 50% | 20%
-----------+-----+------+-----------
With this fix we get:
| p | tg | effective
-----------+-----+------+-----------
CASE 1
-----------+-----+------+-----------
uclamp_min | 60% | 0% | 50%
-----------+-----+------+-----------
uclamp_max | 80% | 50% | 50%
-----------+-----+------+-----------
CASE 2
-----------+-----+------+-----------
uclamp_min | 0% | 30% | 30%
-----------+-----+------+-----------
uclamp_max | 20% | 50% | 30%
-----------+-----+------+-----------
Additionally uclamp_update_active_tasks() must now unconditionally
update both UCLAMP_MIN/MAX because changing the tg's UCLAMP_MAX for
instance could have an impact on the effective UCLAMP_MIN of the tasks.
| p | tg | effective
-----------+-----+------+-----------
old
-----------+-----+------+-----------
uclamp_min | 60% | 0% | 50%
-----------+-----+------+-----------
uclamp_max | 80% | 50% | 50%
-----------+-----+------+-----------
*new*
-----------+-----+------+-----------
uclamp_min | 60% | 0% | *60%*
-----------+-----+------+-----------
uclamp_max | 80% |*70%* | *70%*
-----------+-----+------+-----------
[1] https://lore.kernel.org/lkml/CAB8ipk_a6VFNjiEnHRHkUMBKbA+qzPQvhtNjJ_YNzQhqV_o8Zw@mail.gmail.com/
Fixes: 0c18f2ecfcc2 ("sched/uclamp: Fix wrong implementation of cpu.uclamp.min")
Reported-by: Xuewen Yan <xuewen.yan94@gmail.com>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210617165155.3774110-1-qais.yousef@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/core.c | 49 +++++++++++++++++----------------------------
1 file changed, 18 insertions(+), 31 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index fe5da692dd7a..2b66c9a16cbe 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1055,8 +1055,10 @@ static void uclamp_sync_util_min_rt_default(void)
static inline struct uclamp_se
uclamp_tg_restrict(struct task_struct *p, enum uclamp_id clamp_id)
{
+ /* Copy by value as we could modify it */
struct uclamp_se uc_req = p->uclamp_req[clamp_id];
#ifdef CONFIG_UCLAMP_TASK_GROUP
+ unsigned int tg_min, tg_max, value;
/*
* Tasks in autogroups or root task group will be
@@ -1067,23 +1069,11 @@ uclamp_tg_restrict(struct task_struct *p, enum uclamp_id clamp_id)
if (task_group(p) == &root_task_group)
return uc_req;
- switch (clamp_id) {
- case UCLAMP_MIN: {
- struct uclamp_se uc_min = task_group(p)->uclamp[clamp_id];
- if (uc_req.value < uc_min.value)
- return uc_min;
- break;
- }
- case UCLAMP_MAX: {
- struct uclamp_se uc_max = task_group(p)->uclamp[clamp_id];
- if (uc_req.value > uc_max.value)
- return uc_max;
- break;
- }
- default:
- WARN_ON_ONCE(1);
- break;
- }
+ tg_min = task_group(p)->uclamp[UCLAMP_MIN].value;
+ tg_max = task_group(p)->uclamp[UCLAMP_MAX].value;
+ value = uc_req.value;
+ value = clamp(value, tg_min, tg_max);
+ uclamp_se_set(&uc_req, value, false);
#endif
return uc_req;
@@ -1282,8 +1272,9 @@ static inline void uclamp_rq_dec(struct rq *rq, struct task_struct *p)
}
static inline void
-uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
+uclamp_update_active(struct task_struct *p)
{
+ enum uclamp_id clamp_id;
struct rq_flags rf;
struct rq *rq;
@@ -1303,9 +1294,11 @@ uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
* affecting a valid clamp bucket, the next time it's enqueued,
* it will already see the updated clamp bucket value.
*/
- if (p->uclamp[clamp_id].active) {
- uclamp_rq_dec_id(rq, p, clamp_id);
- uclamp_rq_inc_id(rq, p, clamp_id);
+ for_each_clamp_id(clamp_id) {
+ if (p->uclamp[clamp_id].active) {
+ uclamp_rq_dec_id(rq, p, clamp_id);
+ uclamp_rq_inc_id(rq, p, clamp_id);
+ }
}
task_rq_unlock(rq, p, &rf);
@@ -1313,20 +1306,14 @@ uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
#ifdef CONFIG_UCLAMP_TASK_GROUP
static inline void
-uclamp_update_active_tasks(struct cgroup_subsys_state *css,
- unsigned int clamps)
+uclamp_update_active_tasks(struct cgroup_subsys_state *css)
{
- enum uclamp_id clamp_id;
struct css_task_iter it;
struct task_struct *p;
css_task_iter_start(css, 0, &it);
- while ((p = css_task_iter_next(&it))) {
- for_each_clamp_id(clamp_id) {
- if ((0x1 << clamp_id) & clamps)
- uclamp_update_active(p, clamp_id);
- }
- }
+ while ((p = css_task_iter_next(&it)))
+ uclamp_update_active(p);
css_task_iter_end(&it);
}
@@ -8826,7 +8813,7 @@ static void cpu_util_update_eff(struct cgroup_subsys_state *css)
}
/* Immediately update descendants RUNNABLE tasks */
- uclamp_update_active_tasks(css, clamps);
+ uclamp_update_active_tasks(css);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 313/700] lockdep: Fix wait-type for empty stack
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (311 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 312/700] sched/uclamp: Fix uclamp_tg_restrict() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 314/700] lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING Greg Kroah-Hartman
` (392 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Zijlstra (Intel),
Joerg Roedel, Sasha Levin
From: Peter Zijlstra <peterz@infradead.org>
[ Upstream commit f8b298cc39f0619544c607eaef09fd0b2afd10f3 ]
Even the very first lock can violate the wait-context check, consider
the various IRQ contexts.
Fixes: de8f5e4f2dc1 ("lockdep: Introduce wait-type checks")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20210617190313.256987481@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/locking/lockdep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index b56c3855756e..8f8cd43ec2a0 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -4692,7 +4692,7 @@ static int check_wait_context(struct task_struct *curr, struct held_lock *next)
u8 curr_inner;
int depth;
- if (!curr->lockdep_depth || !next_inner || next->trylock)
+ if (!next_inner || next->trylock)
return 0;
if (!next_outer)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 314/700] lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (312 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 313/700] lockdep: Fix wait-type for empty stack Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 315/700] spi: spi-sun6i: Fix chipselect/clock bug Greg Kroah-Hartman
` (391 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Zijlstra (Intel),
Joerg Roedel, Sasha Levin
From: Peter Zijlstra <peterz@infradead.org>
[ Upstream commit c0c2c0dad6a06e0c05e9a52d65f932bd54364c97 ]
When PROVE_RAW_LOCK_NESTING=y many of the selftests FAILED because
HARDIRQ context is out-of-bounds for spinlocks. Instead make the
default hardware context the threaded hardirq context, which preserves
the old locking rules.
The wait-type specific locking selftests will have a non-threaded
HARDIRQ variant.
Fixes: de8f5e4f2dc1 ("lockdep: Introduce wait-type checks")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20210617190313.322096283@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
lib/locking-selftest.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index 2d85abac1744..0f6b262e0964 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -194,6 +194,7 @@ static void init_shared_classes(void)
#define HARDIRQ_ENTER() \
local_irq_disable(); \
__irq_enter(); \
+ lockdep_hardirq_threaded(); \
WARN_ON(!in_irq());
#define HARDIRQ_EXIT() \
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 315/700] spi: spi-sun6i: Fix chipselect/clock bug
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (313 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 314/700] lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 316/700] crypto: nx - Fix RCU warning in nx842_OF_upd_status Greg Kroah-Hartman
` (390 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mirko Vogt, Ralf Schlatterbeck,
Mark Brown, Sasha Levin
From: Mirko Vogt <mirko-dev|linux@nanl.de>
[ Upstream commit 0d7993b234c9fad8cb6bec6adfaa74694ba85ecb ]
The current sun6i SPI implementation initializes the transfer too early,
resulting in SCK going high before the transfer. When using an additional
(gpio) chipselect with sun6i, the chipselect is asserted at a time when
clock is high, making the SPI transfer fail.
This is due to SUN6I_GBL_CTL_BUS_ENABLE being written into
SUN6I_GBL_CTL_REG at an early stage. Moving that to the transfer
function, hence, right before the transfer starts, mitigates that
problem.
Fixes: 3558fe900e8af (spi: sunxi: Add Allwinner A31 SPI controller driver)
Signed-off-by: Mirko Vogt <mirko-dev|linux@nanl.de>
Signed-off-by: Ralf Schlatterbeck <rsc@runtux.com>
Link: https://lore.kernel.org/r/20210614144507.y3udezjfbko7eavv@runtux.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-sun6i.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c
index cc8401980125..23ad052528db 100644
--- a/drivers/spi/spi-sun6i.c
+++ b/drivers/spi/spi-sun6i.c
@@ -379,6 +379,10 @@ static int sun6i_spi_transfer_one(struct spi_master *master,
}
sun6i_spi_write(sspi, SUN6I_CLK_CTL_REG, reg);
+ /* Finally enable the bus - doing so before might raise SCK to HIGH */
+ reg = sun6i_spi_read(sspi, SUN6I_GBL_CTL_REG);
+ reg |= SUN6I_GBL_CTL_BUS_ENABLE;
+ sun6i_spi_write(sspi, SUN6I_GBL_CTL_REG, reg);
/* Setup the transfer now... */
if (sspi->tx_buf)
@@ -504,7 +508,7 @@ static int sun6i_spi_runtime_resume(struct device *dev)
}
sun6i_spi_write(sspi, SUN6I_GBL_CTL_REG,
- SUN6I_GBL_CTL_BUS_ENABLE | SUN6I_GBL_CTL_MASTER | SUN6I_GBL_CTL_TP);
+ SUN6I_GBL_CTL_MASTER | SUN6I_GBL_CTL_TP);
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 316/700] crypto: nx - Fix RCU warning in nx842_OF_upd_status
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (314 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 315/700] spi: spi-sun6i: Fix chipselect/clock bug Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 317/700] psi: Fix race between psi_trigger_create/destroy Greg Kroah-Hartman
` (389 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Herbert Xu, Sasha Levin
From: Herbert Xu <herbert@gondor.apana.org.au>
[ Upstream commit 2a96726bd0ccde4f12b9b9a9f61f7b1ac5af7e10 ]
The function nx842_OF_upd_status triggers a sparse RCU warning when
it directly dereferences the RCU-protected devdata. This appears
to be an accident as there was another variable of the same name
that was passed in from the caller.
After it was removed (because the main purpose of using it, to
update the status member was itself removed) the global variable
unintenionally stood in as its replacement.
This patch restores the devdata parameter.
Fixes: 90fd73f912f0 ("crypto: nx - remove pSeries NX 'status' field")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/nx/nx-842-pseries.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/nx/nx-842-pseries.c b/drivers/crypto/nx/nx-842-pseries.c
index 8ee547ee378e..9b2417ebc95a 100644
--- a/drivers/crypto/nx/nx-842-pseries.c
+++ b/drivers/crypto/nx/nx-842-pseries.c
@@ -538,13 +538,15 @@ static int nx842_OF_set_defaults(struct nx842_devdata *devdata)
* The status field indicates if the device is enabled when the status
* is 'okay'. Otherwise the device driver will be disabled.
*
- * @prop - struct property point containing the maxsyncop for the update
+ * @devdata: struct nx842_devdata to use for dev_info
+ * @prop: struct property point containing the maxsyncop for the update
*
* Returns:
* 0 - Device is available
* -ENODEV - Device is not available
*/
-static int nx842_OF_upd_status(struct property *prop)
+static int nx842_OF_upd_status(struct nx842_devdata *devdata,
+ struct property *prop)
{
const char *status = (const char *)prop->value;
@@ -758,7 +760,7 @@ static int nx842_OF_upd(struct property *new_prop)
goto out;
/* Perform property updates */
- ret = nx842_OF_upd_status(status);
+ ret = nx842_OF_upd_status(new_devdata, status);
if (ret)
goto error_out;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 317/700] psi: Fix race between psi_trigger_create/destroy
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (315 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 316/700] crypto: nx - Fix RCU warning in nx842_OF_upd_status Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 318/700] KVM: selftests: fix triple fault if ept=0 in dirty_log_test Greg Kroah-Hartman
` (388 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, ziwei.dai, ke.wang, Zhaoyang Huang,
Peter Zijlstra (Intel),
Suren Baghdasaryan, Johannes Weiner, Sasha Levin
From: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
[ Upstream commit 8f91efd870ea5d8bc10b0fcc9740db51cd4c0c83 ]
Race detected between psi_trigger_destroy/create as shown below, which
cause panic by accessing invalid psi_system->poll_wait->wait_queue_entry
and psi_system->poll_timer->entry->next. Under this modification, the
race window is removed by initialising poll_wait and poll_timer in
group_init which are executed only once at beginning.
psi_trigger_destroy() psi_trigger_create()
mutex_lock(trigger_lock);
rcu_assign_pointer(poll_task, NULL);
mutex_unlock(trigger_lock);
mutex_lock(trigger_lock);
if (!rcu_access_pointer(group->poll_task)) {
timer_setup(poll_timer, poll_timer_fn, 0);
rcu_assign_pointer(poll_task, task);
}
mutex_unlock(trigger_lock);
synchronize_rcu();
del_timer_sync(poll_timer); <-- poll_timer has been reinitialized by
psi_trigger_create()
So, trigger_lock/RCU correctly protects destruction of
group->poll_task but misses this race affecting poll_timer and
poll_wait.
Fixes: 461daba06bdc ("psi: eliminate kthread_worker from psi trigger scheduling mechanism")
Co-developed-by: ziwei.dai <ziwei.dai@unisoc.com>
Signed-off-by: ziwei.dai <ziwei.dai@unisoc.com>
Co-developed-by: ke.wang <ke.wang@unisoc.com>
Signed-off-by: ke.wang <ke.wang@unisoc.com>
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://lkml.kernel.org/r/1623371374-15664-1-git-send-email-huangzhaoyang@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/sched/psi.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index ef37acd28e4a..37f02fdbb35a 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -179,6 +179,8 @@ struct psi_group psi_system = {
static void psi_avgs_work(struct work_struct *work);
+static void poll_timer_fn(struct timer_list *t);
+
static void group_init(struct psi_group *group)
{
int cpu;
@@ -198,6 +200,8 @@ static void group_init(struct psi_group *group)
memset(group->polling_total, 0, sizeof(group->polling_total));
group->polling_next_update = ULLONG_MAX;
group->polling_until = 0;
+ init_waitqueue_head(&group->poll_wait);
+ timer_setup(&group->poll_timer, poll_timer_fn, 0);
rcu_assign_pointer(group->poll_task, NULL);
}
@@ -1142,9 +1146,7 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group,
return ERR_CAST(task);
}
atomic_set(&group->poll_wakeup, 0);
- init_waitqueue_head(&group->poll_wait);
wake_up_process(task);
- timer_setup(&group->poll_timer, poll_timer_fn, 0);
rcu_assign_pointer(group->poll_task, task);
}
@@ -1196,6 +1198,7 @@ static void psi_trigger_destroy(struct kref *ref)
group->poll_task,
lockdep_is_held(&group->trigger_lock));
rcu_assign_pointer(group->poll_task, NULL);
+ del_timer(&group->poll_timer);
}
}
@@ -1208,17 +1211,14 @@ static void psi_trigger_destroy(struct kref *ref)
*/
synchronize_rcu();
/*
- * Destroy the kworker after releasing trigger_lock to prevent a
+ * Stop kthread 'psimon' after releasing trigger_lock to prevent a
* deadlock while waiting for psi_poll_work to acquire trigger_lock
*/
if (task_to_destroy) {
/*
* After the RCU grace period has expired, the worker
* can no longer be found through group->poll_task.
- * But it might have been already scheduled before
- * that - deschedule it cleanly before destroying it.
*/
- del_timer_sync(&group->poll_timer);
kthread_stop(task_to_destroy);
}
kfree(t);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 318/700] KVM: selftests: fix triple fault if ept=0 in dirty_log_test
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (316 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 317/700] psi: Fix race between psi_trigger_create/destroy Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 319/700] KVM: selftests: Remove errant asm/barrier.h include to fix arm64 build Greg Kroah-Hartman
` (387 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hou Wenlong, Paolo Bonzini, Sasha Levin
From: Hou Wenlong <houwenlong93@linux.alibaba.com>
[ Upstream commit e5830fb13b8cad5e3bdf84f0f7a3dcb4f4d9bcbb ]
Commit 22f232d134e1 ("KVM: selftests: x86: Set supported CPUIDs on
default VM") moved vcpu_set_cpuid into vm_create_with_vcpus, but
dirty_log_test doesn't use it to create vm. So vcpu's CPUIDs is
not set, the guest's pa_bits in kvm would be smaller than the
value queried by userspace.
However, the dirty track memory slot is in the highest GPA, the
reserved bits in gpte would be set with wrong pa_bits.
For shadow paging, page fault would fail in permission_fault and
be injected into guest. Since guest doesn't have idt, it finally
leads to vm_exit for triple fault.
Move vcpu_set_cpuid into vm_vcpu_add_default to set supported
CPUIDs on default vcpu, since almost all tests need it.
Fixes: 22f232d134e1 ("KVM: selftests: x86: Set supported CPUIDs on default VM")
Signed-off-by: Hou Wenlong <houwenlong93@linux.alibaba.com>
Message-Id: <411ea2173f89abce56fc1fca5af913ed9c5a89c9.1624351343.git.houwenlong93@linux.alibaba.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/kvm/lib/kvm_util.c | 4 ----
tools/testing/selftests/kvm/lib/x86_64/processor.c | 3 +++
tools/testing/selftests/kvm/steal_time.c | 2 --
tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c | 2 --
4 files changed, 3 insertions(+), 8 deletions(-)
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 8b90256bca96..03e13938fd07 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -310,10 +310,6 @@ struct kvm_vm *vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus,
uint32_t vcpuid = vcpuids ? vcpuids[i] : i;
vm_vcpu_add_default(vm, vcpuid, guest_code);
-
-#ifdef __x86_64__
- vcpu_set_cpuid(vm, vcpuid, kvm_get_supported_cpuid());
-#endif
}
return vm;
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index a8906e60a108..09cc685599a2 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -600,6 +600,9 @@ void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
/* Setup the MP state */
mp_state.mp_state = 0;
vcpu_set_mp_state(vm, vcpuid, &mp_state);
+
+ /* Setup supported CPUIDs */
+ vcpu_set_cpuid(vm, vcpuid, kvm_get_supported_cpuid());
}
/*
diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c
index fcc840088c91..a6fe75cb9a6e 100644
--- a/tools/testing/selftests/kvm/steal_time.c
+++ b/tools/testing/selftests/kvm/steal_time.c
@@ -73,8 +73,6 @@ static void steal_time_init(struct kvm_vm *vm)
for (i = 0; i < NR_VCPUS; ++i) {
int ret;
- vcpu_set_cpuid(vm, i, kvm_get_supported_cpuid());
-
/* ST_GPA_BASE is identity mapped */
st_gva[i] = (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE);
sync_global_to_guest(vm, st_gva[i]);
diff --git a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c
index 12c558fc8074..c8d2bbe202d0 100644
--- a/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c
+++ b/tools/testing/selftests/kvm/x86_64/set_boot_cpu_id.c
@@ -106,8 +106,6 @@ static void add_x86_vcpu(struct kvm_vm *vm, uint32_t vcpuid, bool bsp_code)
vm_vcpu_add_default(vm, vcpuid, guest_bsp_vcpu);
else
vm_vcpu_add_default(vm, vcpuid, guest_not_bsp_vcpu);
-
- vcpu_set_cpuid(vm, vcpuid, kvm_get_supported_cpuid());
}
static void run_vm_bsp(uint32_t bsp_vcpu)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 319/700] KVM: selftests: Remove errant asm/barrier.h include to fix arm64 build
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (317 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 318/700] KVM: selftests: fix triple fault if ept=0 in dirty_log_test Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 320/700] media: video-mux: Skip dangling endpoints Greg Kroah-Hartman
` (386 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Xu, Sean Christopherson,
Paolo Bonzini, Sasha Levin
From: Sean Christopherson <seanjc@google.com>
[ Upstream commit ecc3a92c6f4953c134a9590c762755e6593f507c ]
Drop an unnecessary include of asm/barrier.h from dirty_log_test.c to
allow the test to build on arm64. arm64, s390, and x86 all build cleanly
without the include (PPC and MIPS aren't supported in KVM's selftests).
arm64's barrier.h includes linux/kasan-checks.h, which is not copied
into tools/.
In file included from ../../../../tools/include/asm/barrier.h:8,
from dirty_log_test.c:19:
.../arm64/include/asm/barrier.h:12:10: fatal error: linux/kasan-checks.h: No such file or directory
12 | #include <linux/kasan-checks.h>
| ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Fixes: 84292e565951 ("KVM: selftests: Add dirty ring buffer test")
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622200529.3650424-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/kvm/dirty_log_test.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
index 81edbd23d371..b4d24f50aca6 100644
--- a/tools/testing/selftests/kvm/dirty_log_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -16,7 +16,6 @@
#include <errno.h>
#include <linux/bitmap.h>
#include <linux/bitops.h>
-#include <asm/barrier.h>
#include <linux/atomic.h>
#include "kvm_util.h"
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 320/700] media: video-mux: Skip dangling endpoints
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (318 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 319/700] KVM: selftests: Remove errant asm/barrier.h include to fix arm64 build Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 321/700] media: mtk-vpu: on suspend, read/write regs only if vpu is running Greg Kroah-Hartman
` (385 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Philipp Zabel, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Philipp Zabel <p.zabel@pengutronix.de>
[ Upstream commit 95778c2d0979618e3349b1d2324ec282a5a6adbf ]
i.MX6 device tree include files contain dangling endpoints for the
board device tree writers' convenience. These are still included in
many existing device trees.
Treat dangling endpoints as non-existent to support them.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 612b385efb1e ("media: video-mux: Create media links in bound notifier")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/video-mux.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/video-mux.c b/drivers/media/platform/video-mux.c
index 133122e38515..9bc0b4d8de09 100644
--- a/drivers/media/platform/video-mux.c
+++ b/drivers/media/platform/video-mux.c
@@ -362,7 +362,7 @@ static int video_mux_async_register(struct video_mux *vmux,
for (i = 0; i < num_input_pads; i++) {
struct v4l2_async_subdev *asd;
- struct fwnode_handle *ep;
+ struct fwnode_handle *ep, *remote_ep;
ep = fwnode_graph_get_endpoint_by_id(
dev_fwnode(vmux->subdev.dev), i, 0,
@@ -370,6 +370,14 @@ static int video_mux_async_register(struct video_mux *vmux,
if (!ep)
continue;
+ /* Skip dangling endpoints for backwards compatibility */
+ remote_ep = fwnode_graph_get_remote_endpoint(ep);
+ if (!remote_ep) {
+ fwnode_handle_put(ep);
+ continue;
+ }
+ fwnode_handle_put(remote_ep);
+
asd = v4l2_async_notifier_add_fwnode_remote_subdev(
&vmux->notifier, ep, struct v4l2_async_subdev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 321/700] media: mtk-vpu: on suspend, read/write regs only if vpu is running
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (319 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 320/700] media: video-mux: Skip dangling endpoints Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 322/700] EDAC/aspeed: Use proper format string for printing resource Greg Kroah-Hartman
` (384 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dafna Hirschfeld, Hans Verkuil,
Mauro Carvalho Chehab, Sasha Levin
From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
[ Upstream commit 11420749c6b4b237361750de3d5b5579175f8622 ]
If the vpu is not running, we should not rely on VPU_IDLE_REG
value. In this case, the suspend cb should only unprepare the
clock. This fixes a system-wide suspend to ram failure:
[ 273.073363] PM: suspend entry (deep)
[ 273.410502] mtk-msdc 11230000.mmc: phase: [map:ffffffff] [maxlen:32] [final:10]
[ 273.455926] Filesystems sync: 0.378 seconds
[ 273.589707] Freezing user space processes ... (elapsed 0.003 seconds) done.
[ 273.600104] OOM killer disabled.
[ 273.603409] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 273.613361] mwifiex_sdio mmc2:0001:1: None of the WOWLAN triggers enabled
[ 274.784952] mtk_vpu 10020000.vpu: vpu idle timeout
[ 274.789764] PM: dpm_run_callback(): platform_pm_suspend+0x0/0x70 returns -5
[ 274.796740] mtk_vpu 10020000.vpu: PM: failed to suspend: error -5
[ 274.802842] PM: Some devices failed to suspend, or early wake event detected
[ 275.426489] OOM killer enabled.
[ 275.429718] Restarting tasks ...
[ 275.435765] done.
[ 275.447510] PM: suspend exit
Fixes: 1f565e263c3e ("media: mtk-vpu: VPU should be in idle state before system is suspended")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/platform/mtk-vpu/mtk_vpu.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c
index 043894f7188c..f49f6d53a941 100644
--- a/drivers/media/platform/mtk-vpu/mtk_vpu.c
+++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c
@@ -987,6 +987,12 @@ static int mtk_vpu_suspend(struct device *dev)
return ret;
}
+ if (!vpu_running(vpu)) {
+ vpu_clock_disable(vpu);
+ clk_unprepare(vpu->clk);
+ return 0;
+ }
+
mutex_lock(&vpu->vpu_mutex);
/* disable vpu timer interrupt */
vpu_cfg_writel(vpu, vpu_cfg_readl(vpu, VPU_INT_STATUS) | VPU_IDLE_STATE,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 322/700] EDAC/aspeed: Use proper format string for printing resource
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (320 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 321/700] media: mtk-vpu: on suspend, read/write regs only if vpu is running Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 323/700] PM / devfreq: Add missing error code in devfreq_add_device() Greg Kroah-Hartman
` (383 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Arnd Bergmann, Borislav Petkov,
Andrew Jeffery, Sasha Levin
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 2e2f16d5cdb33e5f6fc53b7ad66c9f456d5f2950 ]
On ARMv7, resource_size_t can be 64-bit, which breaks printing
it as %x:
drivers/edac/aspeed_edac.c: In function 'init_csrows':
drivers/edac/aspeed_edac.c:257:28: error: format '%x' expects argument of \
type 'unsigned int', but argument 4 has type 'resource_size_t' {aka 'long \
long unsigned int'} [-Werror=format=]
257 | dev_dbg(mci->pdev, "dt: /memory node resources: first page \
r.start=0x%x, resource_size=0x%x, PAGE_SHIFT macro=0x%x\n",
Use the special %pR format string to pretty-print the entire resource
instead.
Fixes: edfc2d73ca45 ("EDAC/aspeed: Add support for AST2400 and AST2600")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lkml.kernel.org/r/20210421135500.3518661-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/edac/aspeed_edac.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/edac/aspeed_edac.c b/drivers/edac/aspeed_edac.c
index a46da56d6d54..6bd5f8815919 100644
--- a/drivers/edac/aspeed_edac.c
+++ b/drivers/edac/aspeed_edac.c
@@ -254,8 +254,8 @@ static int init_csrows(struct mem_ctl_info *mci)
return rc;
}
- dev_dbg(mci->pdev, "dt: /memory node resources: first page r.start=0x%x, resource_size=0x%x, PAGE_SHIFT macro=0x%x\n",
- r.start, resource_size(&r), PAGE_SHIFT);
+ dev_dbg(mci->pdev, "dt: /memory node resources: first page %pR, PAGE_SHIFT macro=0x%x\n",
+ &r, PAGE_SHIFT);
csrow->first_page = r.start >> PAGE_SHIFT;
nr_pages = resource_size(&r) >> PAGE_SHIFT;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 323/700] PM / devfreq: Add missing error code in devfreq_add_device()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (321 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 322/700] EDAC/aspeed: Use proper format string for printing resource Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 324/700] ACPI: PM / fan: Put fan device IDs into separate header file Greg Kroah-Hartman
` (382 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, YueHaibing, Chanwoo Choi, Sasha Levin
From: YueHaibing <yuehaibing@huawei.com>
[ Upstream commit 18b380ed61f892ed06838d1f1a5124d966292ed3 ]
Set err code in the error path before jumping to the end of the function.
Fixes: 4dc3bab8687f ("PM / devfreq: Add support delayed timer for polling mode")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/devfreq/devfreq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 59ba59bea0f5..db1bc8cf9276 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -822,6 +822,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
if (devfreq->profile->timer < 0
|| devfreq->profile->timer >= DEVFREQ_TIMER_NUM) {
mutex_unlock(&devfreq->lock);
+ err = -EINVAL;
goto err_dev;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 324/700] ACPI: PM / fan: Put fan device IDs into separate header file
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (322 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 323/700] PM / devfreq: Add missing error code in devfreq_add_device() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 325/700] block: avoid double io accounting for flush request Greg Kroah-Hartman
` (381 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Rafael J. Wysocki, Sasha Levin
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Upstream commit b9370dceabb7841c5e65ce4ee4405b9db5231fc4 ]
The ACPI fan device IDs are shared between the fan driver and the
device power management code. The former is modular, so it needs
to include the table of device IDs for module autoloading and the
latter needs that list to avoid attaching the generic ACPI PM domain
to fan devices (which doesn't make sense) possibly before the fan
driver module is loaded.
Unfortunately, that requires the list of fan device IDs to be
updated in two places which is prone to mistakes, so put it into
a symbol definition in a separate header file so there is only one
copy of it in case it needs to be updated again in the future.
Fixes: b9ea0bae260f ("ACPI: PM: Avoid attaching ACPI PM domain to certain devices")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/device_pm.c | 6 ++----
drivers/acpi/fan.c | 7 +++----
drivers/acpi/fan.h | 13 +++++++++++++
3 files changed, 18 insertions(+), 8 deletions(-)
create mode 100644 drivers/acpi/fan.h
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 58876248b192..a63dd10d9aa9 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -20,6 +20,7 @@
#include <linux/pm_runtime.h>
#include <linux/suspend.h>
+#include "fan.h"
#include "internal.h"
/**
@@ -1307,10 +1308,7 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
* with the generic ACPI PM domain.
*/
static const struct acpi_device_id special_pm_ids[] = {
- {"PNP0C0B", }, /* Generic ACPI fan */
- {"INT3404", }, /* Fan */
- {"INTC1044", }, /* Fan for Tiger Lake generation */
- {"INTC1048", }, /* Fan for Alder Lake generation */
+ ACPI_FAN_DEVICE_IDS,
{}
};
struct acpi_device *adev = ACPI_COMPANION(dev);
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 66c3983f0ccc..5cd0ceb50bc8 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -16,6 +16,8 @@
#include <linux/platform_device.h>
#include <linux/sort.h>
+#include "fan.h"
+
MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION("ACPI Fan Driver");
MODULE_LICENSE("GPL");
@@ -24,10 +26,7 @@ static int acpi_fan_probe(struct platform_device *pdev);
static int acpi_fan_remove(struct platform_device *pdev);
static const struct acpi_device_id fan_device_ids[] = {
- {"PNP0C0B", 0},
- {"INT3404", 0},
- {"INTC1044", 0},
- {"INTC1048", 0},
+ ACPI_FAN_DEVICE_IDS,
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, fan_device_ids);
diff --git a/drivers/acpi/fan.h b/drivers/acpi/fan.h
new file mode 100644
index 000000000000..dc9a6efa514b
--- /dev/null
+++ b/drivers/acpi/fan.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * ACPI fan device IDs are shared between the fan driver and the device power
+ * management code.
+ *
+ * Add new device IDs before the generic ACPI fan one.
+ */
+#define ACPI_FAN_DEVICE_IDS \
+ {"INT3404", }, /* Fan */ \
+ {"INTC1044", }, /* Fan for Tiger Lake generation */ \
+ {"INTC1048", }, /* Fan for Alder Lake generation */ \
+ {"PNP0C0B", } /* Generic ACPI fan */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 325/700] block: avoid double io accounting for flush request
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (323 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 324/700] ACPI: PM / fan: Put fan device IDs into separate header file Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 326/700] x86/hyperv: fix logical processor creation Greg Kroah-Hartman
` (380 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bart Van Assche, Christoph Hellwig,
John Garry, Ming Lei, Jens Axboe, Sasha Levin
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit 84da7acc3ba53af26f15c4b0ada446127b7a7836 ]
For flush request, rq->end_io() may be called two times, one is from
timeout handling(blk_mq_check_expired()), another is from normal
completion(__blk_mq_end_request()).
Move blk_account_io_flush() after flush_rq->ref drops to zero, so
io accounting can be done just once for flush request.
Fixes: b68663186577 ("block: add iostat counters for flush requests")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210511152236.763464-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-flush.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 7942ca6ed321..1002f6c58181 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -219,8 +219,6 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
unsigned long flags = 0;
struct blk_flush_queue *fq = blk_get_flush_queue(q, flush_rq->mq_ctx);
- blk_account_io_flush(flush_rq);
-
/* release the tag's ownership to the req cloned from */
spin_lock_irqsave(&fq->mq_flush_lock, flags);
@@ -230,6 +228,7 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
return;
}
+ blk_account_io_flush(flush_rq);
/*
* Flush request has to be marked as IDLE when it is really ended
* because its .end_io() is called from timeout code path too for
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 326/700] x86/hyperv: fix logical processor creation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (324 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 325/700] block: avoid double io accounting for flush request Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 327/700] nvme-pci: look for StorageD3Enable on companion ACPI device instead Greg Kroah-Hartman
` (379 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Praveen Kumar, Wei Liu, Sasha Levin
From: Praveen Kumar <kumarpraveen@linux.microsoft.com>
[ Upstream commit 450605c28d571eddca39a65fdbc1338add44c6d9 ]
Microsoft Hypervisor expects the logical processor index to be the same
as CPU's index during logical processor creation. Using cpu_physical_id
confuses hypervisor's scheduler. That causes the root partition not boot
when core scheduler is used.
This patch removes the call to cpu_physical_id and uses the CPU index
directly for bringing up logical processor. This scheme works for both
classic scheduler and core scheduler.
Fixes: 333abaf5abb3 (x86/hyperv: implement and use hv_smp_prepare_cpus)
Signed-off-by: Praveen Kumar <kumarpraveen@linux.microsoft.com>
Link: https://lore.kernel.org/r/20210531074046.113452-1-kumarpraveen@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/kernel/cpu/mshyperv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index e88bc296afca..a803fc423cb7 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -245,7 +245,7 @@ static void __init hv_smp_prepare_cpus(unsigned int max_cpus)
for_each_present_cpu(i) {
if (i == 0)
continue;
- ret = hv_call_add_logical_proc(numa_cpu_node(i), i, cpu_physical_id(i));
+ ret = hv_call_add_logical_proc(numa_cpu_node(i), i, i);
BUG_ON(ret);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 327/700] nvme-pci: look for StorageD3Enable on companion ACPI device instead
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (325 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 326/700] x86/hyperv: fix logical processor creation Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 328/700] ACPI: tables: FPDT: Add missing acpi_put_table() in acpi_init_fpdt() Greg Kroah-Hartman
` (378 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liang Prike, Raul E Rangel,
Mario Limonciello, David E. Box, Christoph Hellwig, Sasha Levin
From: Mario Limonciello <mario.limonciello@amd.com>
[ Upstream commit e21e0243e7b0f1c2a21d21f4d115f7b37175772a ]
The documentation around the StorageD3Enable property hints that it
should be made on the PCI device. This is where newer AMD systems set
the property and it's required for S0i3 support.
So rather than look for nodes of the root port only present on Intel
systems, switch to the companion ACPI device for all systems.
David Box from Intel indicated this should work on Intel as well.
Link: https://lore.kernel.org/linux-nvme/YK6gmAWqaRmvpJXb@google.com/T/#m900552229fa455867ee29c33b854845fce80ba70
Link: https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/power-management-for-storage-hardware-devices-intro
Fixes: df4f9bc4fb9c ("nvme-pci: add support for ACPI StorageD3Enable property")
Suggested-by: Liang Prike <Prike.Liang@amd.com>
Acked-by: Raul E Rangel <rrangel@chromium.org>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/pci.c | 24 +-----------------------
1 file changed, 1 insertion(+), 23 deletions(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 4555e9202851..2a3ef79f96f9 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2834,10 +2834,7 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
#ifdef CONFIG_ACPI
static bool nvme_acpi_storage_d3(struct pci_dev *dev)
{
- struct acpi_device *adev;
- struct pci_dev *root;
- acpi_handle handle;
- acpi_status status;
+ struct acpi_device *adev = ACPI_COMPANION(&dev->dev);
u8 val;
/*
@@ -2845,28 +2842,9 @@ static bool nvme_acpi_storage_d3(struct pci_dev *dev)
* must use D3 to support deep platform power savings during
* suspend-to-idle.
*/
- root = pcie_find_root_port(dev);
- if (!root)
- return false;
- adev = ACPI_COMPANION(&root->dev);
if (!adev)
return false;
-
- /*
- * The property is defined in the PXSX device for South complex ports
- * and in the PEGP device for North complex ports.
- */
- status = acpi_get_handle(adev->handle, "PXSX", &handle);
- if (ACPI_FAILURE(status)) {
- status = acpi_get_handle(adev->handle, "PEGP", &handle);
- if (ACPI_FAILURE(status))
- return false;
- }
-
- if (acpi_bus_get_device(handle, &adev))
- return false;
-
if (fwnode_property_read_u8(acpi_fwnode_handle(adev), "StorageD3Enable",
&val))
return false;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 328/700] ACPI: tables: FPDT: Add missing acpi_put_table() in acpi_init_fpdt()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (326 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 327/700] nvme-pci: look for StorageD3Enable on companion ACPI device instead Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 329/700] ACPI: sysfs: Fix a buffer overrun problem with description_show() Greg Kroah-Hartman
` (377 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jing Xiangfeng, Zhang Rui,
Hanjun Guo, Rafael J. Wysocki, Sasha Levin
From: Jing Xiangfeng <jingxiangfeng@huawei.com>
[ Upstream commit dd9eaa23e72572d4f1c03f2e5d2e14a5b5793e79 ]
acpi_init_fpdt() forgets to call acpi_put_table() in an error path.
Add the missing function call to fix it.
Fixes: d1eb86e59be0 ("ACPI: tables: introduce support for FPDT table")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/acpi_fpdt.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/acpi_fpdt.c b/drivers/acpi/acpi_fpdt.c
index a89a806a7a2a..4ee2ad234e3d 100644
--- a/drivers/acpi/acpi_fpdt.c
+++ b/drivers/acpi/acpi_fpdt.c
@@ -240,8 +240,10 @@ static int __init acpi_init_fpdt(void)
return 0;
fpdt_kobj = kobject_create_and_add("fpdt", acpi_kobj);
- if (!fpdt_kobj)
+ if (!fpdt_kobj) {
+ acpi_put_table(header);
return -ENOMEM;
+ }
while (offset < header->length) {
subtable = (void *)header + offset;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 329/700] ACPI: sysfs: Fix a buffer overrun problem with description_show()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (327 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 328/700] ACPI: tables: FPDT: Add missing acpi_put_table() in acpi_init_fpdt() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 330/700] mark pstore-blk as broken Greg Kroah-Hartman
` (376 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Krzysztof Wilczyński,
Bjorn Helgaas, Rafael J. Wysocki, Sasha Levin
From: Krzysztof Wilczyński <kw@linux.com>
[ Upstream commit 888be6067b97132c3992866bbcf647572253ab3f ]
Currently, a device description can be obtained using ACPI, if the _STR
method exists for a particular device, and then exposed to the userspace
via a sysfs object as a string value.
If the _STR method is available for a given device then the data
(usually a Unicode string) is read and stored in a buffer (of the
ACPI_TYPE_BUFFER type) with a pointer to said buffer cached in the
struct acpi_device_pnp for later access.
The description_show() function is responsible for exposing the device
description to the userspace via a corresponding sysfs object and
internally calls the utf16s_to_utf8s() function with a pointer to the
buffer that contains the Unicode string so that it can be converted from
UTF16 encoding to UTF8 and thus allowing for the value to be safely
stored and later displayed.
When invoking the utf16s_to_utf8s() function, the description_show()
function also sets a limit of the data that can be saved into a provided
buffer as a result of the character conversion to be a total of
PAGE_SIZE, and upon completion, the utf16s_to_utf8s() function returns
an integer value denoting the number of bytes that have been written
into the provided buffer.
Following the execution of the utf16s_to_utf8s() a newline character
will be added at the end of the resulting buffer so that when the value
is read in the userspace through the sysfs object then it would include
newline making it more accessible when working with the sysfs file
system in the shell, etc. Normally, this wouldn't be a problem, but if
the function utf16s_to_utf8s() happens to return the number of bytes
written to be precisely PAGE_SIZE, then we would overrun the buffer and
write the newline character outside the allotted space which can have
undefined consequences or result in a failure.
To fix this buffer overrun, ensure that there always is enough space
left for the newline character to be safely appended.
Fixes: d1efe3c324ea ("ACPI: Add new sysfs interface to export device description")
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/device_sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c
index da4ff2a8b06a..fe8c7e79f472 100644
--- a/drivers/acpi/device_sysfs.c
+++ b/drivers/acpi/device_sysfs.c
@@ -446,7 +446,7 @@ static ssize_t description_show(struct device *dev,
(wchar_t *)acpi_dev->pnp.str_obj->buffer.pointer,
acpi_dev->pnp.str_obj->buffer.length,
UTF16_LITTLE_ENDIAN, buf,
- PAGE_SIZE);
+ PAGE_SIZE - 1);
buf[result++] = '\n';
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 330/700] mark pstore-blk as broken
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (328 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 329/700] ACPI: sysfs: Fix a buffer overrun problem with description_show() Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 331/700] md: revert io stats accounting Greg Kroah-Hartman
` (375 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christoph Hellwig, Jens Axboe, Sasha Levin
From: Christoph Hellwig <hch@lst.de>
[ Upstream commit d07f3b081ee632268786601f55e1334d1f68b997 ]
pstore-blk just pokes directly into the pagecache for the block
device without going through the file operations for that by faking
up it's own file operations that do not match the block device ones.
As this breaks the control of the block layer of it's page cache,
and even now just works by accident only the best thing is to just
disable this driver.
Fixes: 17639f67c1d6 ("pstore/blk: Introduce backend for block devices")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210608161327.1537919-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/pstore/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 8adabde685f1..328da35da390 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -173,6 +173,7 @@ config PSTORE_BLK
tristate "Log panic/oops to a block device"
depends on PSTORE
depends on BLOCK
+ depends on BROKEN
select PSTORE_ZONE
default n
help
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 331/700] md: revert io stats accounting
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (329 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 330/700] mark pstore-blk as broken Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 332/700] clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG Greg Kroah-Hartman
` (374 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Guoqing Jiang, Song Liu, Sasha Levin
From: Guoqing Jiang <jgq516@gmail.com>
[ Upstream commit ad3fc798800fb7ca04c1dfc439dba946818048d8 ]
The commit 41d2d848e5c0 ("md: improve io stats accounting") could cause
double fault problem per the report [1], and also it is not correct to
change ->bi_end_io if md don't own it, so let's revert it.
And io stats accounting will be replemented in later commits.
[1]. https://lore.kernel.org/linux-raid/3bf04253-3fad-434a-63a7-20214e38cf26@gmail.com/T/#t
Fixes: 41d2d848e5c0 ("md: improve io stats accounting")
Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/md/md.c | 45 ---------------------------------------------
drivers/md/md.h | 1 -
2 files changed, 46 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2a9553efc2d1..c21ce8070d3c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -441,30 +441,6 @@ check_suspended:
}
EXPORT_SYMBOL(md_handle_request);
-struct md_io {
- struct mddev *mddev;
- bio_end_io_t *orig_bi_end_io;
- void *orig_bi_private;
- struct block_device *orig_bi_bdev;
- unsigned long start_time;
-};
-
-static void md_end_io(struct bio *bio)
-{
- struct md_io *md_io = bio->bi_private;
- struct mddev *mddev = md_io->mddev;
-
- bio_end_io_acct_remapped(bio, md_io->start_time, md_io->orig_bi_bdev);
-
- bio->bi_end_io = md_io->orig_bi_end_io;
- bio->bi_private = md_io->orig_bi_private;
-
- mempool_free(md_io, &mddev->md_io_pool);
-
- if (bio->bi_end_io)
- bio->bi_end_io(bio);
-}
-
static blk_qc_t md_submit_bio(struct bio *bio)
{
const int rw = bio_data_dir(bio);
@@ -489,21 +465,6 @@ static blk_qc_t md_submit_bio(struct bio *bio)
return BLK_QC_T_NONE;
}
- if (bio->bi_end_io != md_end_io) {
- struct md_io *md_io;
-
- md_io = mempool_alloc(&mddev->md_io_pool, GFP_NOIO);
- md_io->mddev = mddev;
- md_io->orig_bi_end_io = bio->bi_end_io;
- md_io->orig_bi_private = bio->bi_private;
- md_io->orig_bi_bdev = bio->bi_bdev;
-
- bio->bi_end_io = md_end_io;
- bio->bi_private = md_io;
-
- md_io->start_time = bio_start_io_acct(bio);
- }
-
/* bio could be mergeable after passing to underlayer */
bio->bi_opf &= ~REQ_NOMERGE;
@@ -5614,7 +5575,6 @@ static void md_free(struct kobject *ko)
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
- mempool_exit(&mddev->md_io_pool);
kfree(mddev);
}
@@ -5710,11 +5670,6 @@ static int md_alloc(dev_t dev, char *name)
*/
mddev->hold_active = UNTIL_STOP;
- error = mempool_init_kmalloc_pool(&mddev->md_io_pool, BIO_POOL_SIZE,
- sizeof(struct md_io));
- if (error)
- goto abort;
-
error = -ENOMEM;
mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!mddev->queue)
diff --git a/drivers/md/md.h b/drivers/md/md.h
index bcbba1b5ec4a..5b2da02e2e75 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -487,7 +487,6 @@ struct mddev {
struct bio_set sync_set; /* for sync operations like
* metadata and bitmap writes
*/
- mempool_t md_io_pool;
/* Generic flush handling.
* The last to finish preflush schedules a worker to submit
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 332/700] clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (330 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 331/700] md: revert io stats accounting Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 333/700] extcon: extcon-max8997: Fix IRQ freeing at error path Greg Kroah-Hartman
` (373 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Aaro Koskinen, Adam Ford,
Andreas Kemnade, Lokesh Vutla, Peter Ujfalusi, Tony Lindgren,
Daniel Lezcano, Sasha Levin
From: Tony Lindgren <tony@atomide.com>
[ Upstream commit 9517c577f9f722270584cfb1a7b4e1354e408658 ]
As we are using cpu_pm to save and restore context, we must also save and
restore the timer sysconfig register TIOCP_CFG. This is needed because
we are not calling PM runtime functions at all with cpu_pm.
Fixes: b34677b0999a ("clocksource/drivers/timer-ti-dm: Implement cpu_pm notifier for context save and restore")
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Adam Ford <aford173@gmail.com>
Cc: Andreas Kemnade <andreas@kemnade.info>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210415085506.56828-1-tony@atomide.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clocksource/timer-ti-dm.c | 6 ++++++
include/clocksource/timer-ti-dm.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c
index 33eeabf9c3d1..e5c631f1b5cb 100644
--- a/drivers/clocksource/timer-ti-dm.c
+++ b/drivers/clocksource/timer-ti-dm.c
@@ -78,6 +78,9 @@ static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg,
static void omap_timer_restore_context(struct omap_dm_timer *timer)
{
+ __omap_dm_timer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET,
+ timer->context.ocp_cfg, 0);
+
omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG,
timer->context.twer);
omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG,
@@ -95,6 +98,9 @@ static void omap_timer_restore_context(struct omap_dm_timer *timer)
static void omap_timer_save_context(struct omap_dm_timer *timer)
{
+ timer->context.ocp_cfg =
+ __omap_dm_timer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET, 0);
+
timer->context.tclr =
omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
timer->context.twer =
diff --git a/include/clocksource/timer-ti-dm.h b/include/clocksource/timer-ti-dm.h
index 4c61dade8835..f6da8a132639 100644
--- a/include/clocksource/timer-ti-dm.h
+++ b/include/clocksource/timer-ti-dm.h
@@ -74,6 +74,7 @@
#define OMAP_TIMER_ERRATA_I103_I767 0x80000000
struct timer_regs {
+ u32 ocp_cfg;
u32 tidr;
u32 tier;
u32 twer;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 333/700] extcon: extcon-max8997: Fix IRQ freeing at error path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (331 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 332/700] clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 334/700] ACPI: APEI: fix synchronous external aborts in user-mode Greg Kroah-Hartman
` (372 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Matti Vaittinen, Hans de Goede,
Chanwoo Choi, Sasha Levin
From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
[ Upstream commit 610bdc04830a864115e6928fc944f1171dfff6f3 ]
If reading MAX8997_MUIC_REG_STATUS1 fails at probe the driver exits
without freeing the requested IRQs.
Free the IRQs prior returning if reading the status fails.
Fixes: 3e34c8198960 ("extcon: max8997: Avoid forcing UART path on drive probe")
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/27ee4a48ee775c3f8c9d90459c18b6f2b15edc76.1623146580.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/extcon/extcon-max8997.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 337b0eea4e62..5c4f7746cbee 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -729,7 +729,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
2, info->status);
if (ret) {
dev_err(info->dev, "failed to read MUIC register\n");
- return ret;
+ goto err_irq;
}
cable_type = max8997_muic_get_cable_type(info,
MAX8997_CABLE_GROUP_ADC, &attached);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 334/700] ACPI: APEI: fix synchronous external aborts in user-mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (332 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 333/700] extcon: extcon-max8997: Fix IRQ freeing at error path Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 335/700] EDAC/igen6: fix core dependency Greg Kroah-Hartman
` (371 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Xiaofei Tan, James Morse,
Rafael J. Wysocki, Sasha Levin
From: Xiaofei Tan <tanxiaofei@huawei.com>
[ Upstream commit ccb5ecdc2ddeaff744ee075b54cdff8a689e8fa7 ]
Before commit 8fcc4ae6faf8 ("arm64: acpi: Make apei_claim_sea()
synchronise with APEI's irq work"), do_sea() would unconditionally
signal the affected task from the arch code. Since that change,
the GHES driver sends the signals.
This exposes a problem as errors the GHES driver doesn't understand
or doesn't handle effectively are silently ignored. It will cause
the errors get taken again, and circulate endlessly. User-space task
get stuck in this loop.
Existing firmware on Kunpeng9xx systems reports cache errors with the
'ARM Processor Error' CPER records.
Do memory failure handling for ARM Processor Error Section just like
for Memory Error Section.
Fixes: 8fcc4ae6faf8 ("arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work")
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/apei/ghes.c | 81 +++++++++++++++++++++++++++++++---------
1 file changed, 64 insertions(+), 17 deletions(-)
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index fce7ade2aba9..0c8330ed1ffd 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -441,28 +441,35 @@ static void ghes_kick_task_work(struct callback_head *head)
gen_pool_free(ghes_estatus_pool, (unsigned long)estatus_node, node_len);
}
-static bool ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata,
- int sev)
+static bool ghes_do_memory_failure(u64 physical_addr, int flags)
{
unsigned long pfn;
- int flags = -1;
- int sec_sev = ghes_severity(gdata->error_severity);
- struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
if (!IS_ENABLED(CONFIG_ACPI_APEI_MEMORY_FAILURE))
return false;
- if (!(mem_err->validation_bits & CPER_MEM_VALID_PA))
- return false;
-
- pfn = mem_err->physical_addr >> PAGE_SHIFT;
+ pfn = PHYS_PFN(physical_addr);
if (!pfn_valid(pfn)) {
pr_warn_ratelimited(FW_WARN GHES_PFX
"Invalid address in generic error data: %#llx\n",
- mem_err->physical_addr);
+ physical_addr);
return false;
}
+ memory_failure_queue(pfn, flags);
+ return true;
+}
+
+static bool ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata,
+ int sev)
+{
+ int flags = -1;
+ int sec_sev = ghes_severity(gdata->error_severity);
+ struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
+
+ if (!(mem_err->validation_bits & CPER_MEM_VALID_PA))
+ return false;
+
/* iff following two events can be handled properly by now */
if (sec_sev == GHES_SEV_CORRECTED &&
(gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED))
@@ -470,14 +477,56 @@ static bool ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata,
if (sev == GHES_SEV_RECOVERABLE && sec_sev == GHES_SEV_RECOVERABLE)
flags = 0;
- if (flags != -1) {
- memory_failure_queue(pfn, flags);
- return true;
- }
+ if (flags != -1)
+ return ghes_do_memory_failure(mem_err->physical_addr, flags);
return false;
}
+static bool ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata, int sev)
+{
+ struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
+ bool queued = false;
+ int sec_sev, i;
+ char *p;
+
+ log_arm_hw_error(err);
+
+ sec_sev = ghes_severity(gdata->error_severity);
+ if (sev != GHES_SEV_RECOVERABLE || sec_sev != GHES_SEV_RECOVERABLE)
+ return false;
+
+ p = (char *)(err + 1);
+ for (i = 0; i < err->err_info_num; i++) {
+ struct cper_arm_err_info *err_info = (struct cper_arm_err_info *)p;
+ bool is_cache = (err_info->type == CPER_ARM_CACHE_ERROR);
+ bool has_pa = (err_info->validation_bits & CPER_ARM_INFO_VALID_PHYSICAL_ADDR);
+ const char *error_type = "unknown error";
+
+ /*
+ * The field (err_info->error_info & BIT(26)) is fixed to set to
+ * 1 in some old firmware of HiSilicon Kunpeng920. We assume that
+ * firmware won't mix corrected errors in an uncorrected section,
+ * and don't filter out 'corrected' error here.
+ */
+ if (is_cache && has_pa) {
+ queued = ghes_do_memory_failure(err_info->physical_fault_addr, 0);
+ p += err_info->length;
+ continue;
+ }
+
+ if (err_info->type < ARRAY_SIZE(cper_proc_error_type_strs))
+ error_type = cper_proc_error_type_strs[err_info->type];
+
+ pr_warn_ratelimited(FW_WARN GHES_PFX
+ "Unhandled processor error type: %s\n",
+ error_type);
+ p += err_info->length;
+ }
+
+ return queued;
+}
+
/*
* PCIe AER errors need to be sent to the AER driver for reporting and
* recovery. The GHES severities map to the following AER severities and
@@ -605,9 +654,7 @@ static bool ghes_do_proc(struct ghes *ghes,
ghes_handle_aer(gdata);
}
else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
- struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
-
- log_arm_hw_error(err);
+ queued = ghes_handle_arm_hw_error(gdata, sev);
} else {
void *err = acpi_hest_get_payload(gdata);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 335/700] EDAC/igen6: fix core dependency
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (333 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 334/700] ACPI: APEI: fix synchronous external aborts in user-mode Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:06 ` [PATCH 5.12 336/700] blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() Greg Kroah-Hartman
` (370 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Randy Dunlap,
Tony Luck, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 0a9ece9ba154dd6205709108180952c55e630833 ]
igen6_edac needs mce_register()/unregister() functions,
so it should depend on X86_MCE (or X86_MCE_INTEL).
That change prevents these build errors:
ld: drivers/edac/igen6_edac.o: in function `igen6_remove':
igen6_edac.c:(.text+0x494): undefined reference to `mce_unregister_decode_chain'
ld: drivers/edac/igen6_edac.o: in function `igen6_probe':
igen6_edac.c:(.text+0xf5b): undefined reference to `mce_register_decode_chain'
Fixes: 10590a9d4f23e ("EDAC/igen6: Add EDAC driver for Intel client SoCs using IBECC")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20210619160203.2026-1-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/edac/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 27d0c4cdc58d..9b21e45debc2 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -270,7 +270,8 @@ config EDAC_PND2
config EDAC_IGEN6
tristate "Intel client SoC Integrated MC"
- depends on PCI && X86_64 && PCI_MMCONFIG && ARCH_HAVE_NMI_SAFE_CMPXCHG
+ depends on PCI && PCI_MMCONFIG && ARCH_HAVE_NMI_SAFE_CMPXCHG
+ depends on X64_64 && X86_MCE_INTEL
help
Support for error detection and correction on the Intel
client SoC Integrated Memory Controller using In-Band ECC IP.
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 336/700] blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (334 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 335/700] EDAC/igen6: fix core dependency Greg Kroah-Hartman
@ 2021-07-12 6:06 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 337/700] blk-wbt: make sure throttle is enabled properly Greg Kroah-Hartman
` (369 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:06 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Yi, Jens Axboe, Sasha Levin
From: Zhang Yi <yi.zhang@huawei.com>
[ Upstream commit 1d0903d61e9645c6330b94247b96dd873dfc11c8 ]
Now that we disable wbt by simply zero out rwb->wb_normal in
wbt_disable_default() when switch elevator to bfq, but it's not safe
because it will become false positive if we change queue depth. If it
become false positive between wbt_wait() and wbt_track() when submit
write request, it will lead to drop rqw->inflight to -1 in wbt_done(),
which will end up trigger IO hung. Fix this issue by introduce a new
state which mean the wbt was disabled.
Fixes: a79050434b45 ("blk-rq-qos: refactor out common elements of blk-wbt")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210619093700.920393-2-yi.zhang@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-wbt.c | 5 +++--
block/blk-wbt.h | 1 +
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 42aed0160f86..b098ac6a84f0 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -77,7 +77,8 @@ enum {
static inline bool rwb_enabled(struct rq_wb *rwb)
{
- return rwb && rwb->wb_normal != 0;
+ return rwb && rwb->enable_state != WBT_STATE_OFF_DEFAULT &&
+ rwb->wb_normal != 0;
}
static void wb_timestamp(struct rq_wb *rwb, unsigned long *var)
@@ -702,7 +703,7 @@ void wbt_disable_default(struct request_queue *q)
rwb = RQWB(rqos);
if (rwb->enable_state == WBT_STATE_ON_DEFAULT) {
blk_stat_deactivate(rwb->cb);
- rwb->wb_normal = 0;
+ rwb->enable_state = WBT_STATE_OFF_DEFAULT;
}
}
EXPORT_SYMBOL_GPL(wbt_disable_default);
diff --git a/block/blk-wbt.h b/block/blk-wbt.h
index 16bdc85b8df9..2eb01becde8c 100644
--- a/block/blk-wbt.h
+++ b/block/blk-wbt.h
@@ -34,6 +34,7 @@ enum {
enum {
WBT_STATE_ON_DEFAULT = 1,
WBT_STATE_ON_MANUAL = 2,
+ WBT_STATE_OFF_DEFAULT
};
struct rq_wb {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 337/700] blk-wbt: make sure throttle is enabled properly
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (335 preceding siblings ...)
2021-07-12 6:06 ` [PATCH 5.12 336/700] blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 338/700] ACPI: bgrt: Fix CFI violation Greg Kroah-Hartman
` (368 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhang Yi, Jens Axboe, Sasha Levin
From: Zhang Yi <yi.zhang@huawei.com>
[ Upstream commit 76a8040817b4b9c69b53f9b326987fa891b4082a ]
After commit a79050434b45 ("blk-rq-qos: refactor out common elements of
blk-wbt"), if throttle was disabled by wbt_disable_default(), we could
not enable again, fix this by set enable_state back to
WBT_STATE_ON_DEFAULT.
Fixes: a79050434b45 ("blk-rq-qos: refactor out common elements of blk-wbt")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210619093700.920393-3-yi.zhang@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-wbt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index b098ac6a84f0..f5e5ac915bf7 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -637,9 +637,13 @@ void wbt_set_write_cache(struct request_queue *q, bool write_cache_on)
void wbt_enable_default(struct request_queue *q)
{
struct rq_qos *rqos = wbt_rq_qos(q);
+
/* Throttling already enabled? */
- if (rqos)
+ if (rqos) {
+ if (RQWB(rqos)->enable_state == WBT_STATE_OFF_DEFAULT)
+ RQWB(rqos)->enable_state = WBT_STATE_ON_DEFAULT;
return;
+ }
/* Queue not registered? Maybe shutting down... */
if (!blk_queue_registered(q))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 338/700] ACPI: bgrt: Fix CFI violation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (336 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 337/700] blk-wbt: make sure throttle is enabled properly Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 339/700] cpufreq: Make cpufreq_online() call driver->offline() on errors Greg Kroah-Hartman
` (367 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nathan Chancellor, Kees Cook,
Rafael J. Wysocki, Sasha Levin
From: Nathan Chancellor <nathan@kernel.org>
[ Upstream commit f37ccf8fce155d08ae2a4fb3db677911ced0c21a ]
clang's Control Flow Integrity requires that every indirect call has a
valid target, which is based on the type of the function pointer. The
*_show() functions in this file are written as if they will be called
from dev_attr_show(); however, they will be called from
sysfs_kf_seq_show() because the files were created by
sysfs_create_group() and the sysfs ops are based on kobj_sysfs_ops
because of kobject_add_and_create(). Because the *_show() functions do
not match the type of the show() member in struct kobj_attribute, there
is a CFI violation.
$ cat /sys/firmware/acpi/bgrt/{status,type,version,{x,y}offset}}
1
0
1
522
307
$ dmesg | grep "CFI failure"
[ 267.761825] CFI failure (target: type_show.d5e1ad21498a5fd14edbc5c320906598.cfi_jt+0x0/0x8):
[ 267.762246] CFI failure (target: xoffset_show.d5e1ad21498a5fd14edbc5c320906598.cfi_jt+0x0/0x8):
[ 267.762584] CFI failure (target: status_show.d5e1ad21498a5fd14edbc5c320906598.cfi_jt+0x0/0x8):
[ 267.762973] CFI failure (target: yoffset_show.d5e1ad21498a5fd14edbc5c320906598.cfi_jt+0x0/0x8):
[ 267.763330] CFI failure (target: version_show.d5e1ad21498a5fd14edbc5c320906598.cfi_jt+0x0/0x8):
Convert these functions to the type of the show() member in struct
kobj_attribute so that there is no more CFI violation. Because these
functions are all so similar, combine them into a macro.
Fixes: d1ff4b1cdbab ("ACPI: Add support for exposing BGRT data")
Link: https://github.com/ClangBuiltLinux/linux/issues/1406
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/acpi/bgrt.c | 57 ++++++++++++++-------------------------------
1 file changed, 18 insertions(+), 39 deletions(-)
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index 19bb7f870204..e0d14017706e 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -15,40 +15,19 @@
static void *bgrt_image;
static struct kobject *bgrt_kobj;
-static ssize_t version_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.version);
-}
-static DEVICE_ATTR_RO(version);
-
-static ssize_t status_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.status);
-}
-static DEVICE_ATTR_RO(status);
-
-static ssize_t type_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.image_type);
-}
-static DEVICE_ATTR_RO(type);
-
-static ssize_t xoffset_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.image_offset_x);
-}
-static DEVICE_ATTR_RO(xoffset);
-
-static ssize_t yoffset_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.image_offset_y);
-}
-static DEVICE_ATTR_RO(yoffset);
+#define BGRT_SHOW(_name, _member) \
+ static ssize_t _name##_show(struct kobject *kobj, \
+ struct kobj_attribute *attr, char *buf) \
+ { \
+ return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab._member); \
+ } \
+ struct kobj_attribute bgrt_attr_##_name = __ATTR_RO(_name)
+
+BGRT_SHOW(version, version);
+BGRT_SHOW(status, status);
+BGRT_SHOW(type, image_type);
+BGRT_SHOW(xoffset, image_offset_x);
+BGRT_SHOW(yoffset, image_offset_y);
static ssize_t image_read(struct file *file, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t off, size_t count)
@@ -60,11 +39,11 @@ static ssize_t image_read(struct file *file, struct kobject *kobj,
static BIN_ATTR_RO(image, 0); /* size gets filled in later */
static struct attribute *bgrt_attributes[] = {
- &dev_attr_version.attr,
- &dev_attr_status.attr,
- &dev_attr_type.attr,
- &dev_attr_xoffset.attr,
- &dev_attr_yoffset.attr,
+ &bgrt_attr_version.attr,
+ &bgrt_attr_status.attr,
+ &bgrt_attr_type.attr,
+ &bgrt_attr_xoffset.attr,
+ &bgrt_attr_yoffset.attr,
NULL,
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 339/700] cpufreq: Make cpufreq_online() call driver->offline() on errors
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (337 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 338/700] ACPI: bgrt: Fix CFI violation Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 340/700] PM / devfreq: passive: Fix get_target_freq when not using required-opp Greg Kroah-Hartman
` (366 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rafael J. Wysocki, Viresh Kumar, Sasha Levin
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Upstream commit 3b7180573c250eb6e2a7eec54ae91f27472332ea ]
In the CPU removal path the ->offline() callback provided by the
driver is always invoked before ->exit(), but in the cpufreq_online()
error path it is not, so ->exit() is expected to somehow know the
context in which it has been called and act accordingly.
That is less than straightforward, so make cpufreq_online() invoke
the driver's ->offline() callback, if present, on errors before
->exit() too.
This only potentially affects intel_pstate.
Fixes: 91a12e91dc39 ("cpufreq: Allow light-weight tear down and bring up of CPUs")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/cpufreq/cpufreq.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1d1b563cea4b..1bc1293deae9 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1370,9 +1370,14 @@ static int cpufreq_online(unsigned int cpu)
goto out_free_policy;
}
+ /*
+ * The initialization has succeeded and the policy is online.
+ * If there is a problem with its frequency table, take it
+ * offline and drop it.
+ */
ret = cpufreq_table_validate_and_sort(policy);
if (ret)
- goto out_exit_policy;
+ goto out_offline_policy;
/* related_cpus should at least include policy->cpus. */
cpumask_copy(policy->related_cpus, policy->cpus);
@@ -1518,6 +1523,10 @@ out_destroy_policy:
up_write(&policy->rwsem);
+out_offline_policy:
+ if (cpufreq_driver->offline)
+ cpufreq_driver->offline(policy);
+
out_exit_policy:
if (cpufreq_driver->exit)
cpufreq_driver->exit(policy);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 340/700] PM / devfreq: passive: Fix get_target_freq when not using required-opp
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (338 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 339/700] cpufreq: Make cpufreq_online() call driver->offline() on errors Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 341/700] block: fix trace completion for chained bio Greg Kroah-Hartman
` (365 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Chanwoo Choi, Sasha Levin
From: Chanwoo Choi <cw00.choi@samsung.com>
[ Upstream commit 8c37d01e1a86073d15ea7084390fba58d9a1665f ]
The 86ad9a24f21e ("PM / devfreq: Add required OPPs support to passive governor")
supported the required-opp property for using devfreq passive governor.
But, 86ad9a24f21e has caused the problem on use-case when required-opp
is not used such as exynos-bus.c devfreq driver. So that fix the
get_target_freq of passive governor for supporting the case of when
required-opp is not used.
Fixes: 86ad9a24f21e ("PM / devfreq: Add required OPPs support to passive governor")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/devfreq/governor_passive.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c
index b094132bd20b..fc09324a03e0 100644
--- a/drivers/devfreq/governor_passive.c
+++ b/drivers/devfreq/governor_passive.c
@@ -65,7 +65,7 @@ static int devfreq_passive_get_target_freq(struct devfreq *devfreq,
dev_pm_opp_put(p_opp);
if (IS_ERR(opp))
- return PTR_ERR(opp);
+ goto no_required_opp;
*freq = dev_pm_opp_get_freq(opp);
dev_pm_opp_put(opp);
@@ -73,6 +73,7 @@ static int devfreq_passive_get_target_freq(struct devfreq *devfreq,
return 0;
}
+no_required_opp:
/*
* Get the OPP table's index of decided frequency by governor
* of parent device.
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 341/700] block: fix trace completion for chained bio
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (339 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 340/700] PM / devfreq: passive: Fix get_target_freq when not using required-opp Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 342/700] blk-mq: update hctx->dispatch_busy in case of real scheduler Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wade Liang, BingJing Chang,
Edward Hsieh, Christoph Hellwig, Jens Axboe, Sasha Levin
From: Edward Hsieh <edwardh@synology.com>
[ Upstream commit 60b6a7e6a0f4382cd689f9afdac816964fec2921 ]
For chained bio, trace_block_bio_complete in bio_endio is currently called
only by the parent bio once upon all chained bio completed.
However, the sector and size for the parent bio are modified in bio_split.
Therefore, the size and sector of the complete events might not match the
queue events in blktrace.
The original fix of bio completion trace <fbbaf700e7b1> ("block: trace
completion of all bios.") wants multiple complete events to correspond
to one queue event but missed this.
The issue can be reproduced by md/raid5 read with bio cross chunks.
To fix, move trace completion into the loop for every chained bio to call.
Fixes: fbbaf700e7b1 ("block: trace completion of all bios.")
Reviewed-by: Wade Liang <wadel@synology.com>
Reviewed-by: BingJing Chang <bingjingc@synology.com>
Signed-off-by: Edward Hsieh <edwardh@synology.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210624123030.27014-1-edwardh@synology.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/bio.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/block/bio.c b/block/bio.c
index 50e579088aca..b00c5a88a743 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1412,8 +1412,7 @@ static inline bool bio_remaining_done(struct bio *bio)
*
* bio_endio() can be called several times on a bio that has been chained
* using bio_chain(). The ->bi_end_io() function will only be called the
- * last time. At this point the BLK_TA_COMPLETE tracing event will be
- * generated if BIO_TRACE_COMPLETION is set.
+ * last time.
**/
void bio_endio(struct bio *bio)
{
@@ -1426,6 +1425,11 @@ again:
if (bio->bi_bdev)
rq_qos_done_bio(bio->bi_bdev->bd_disk->queue, bio);
+ if (bio->bi_bdev && bio_flagged(bio, BIO_TRACE_COMPLETION)) {
+ trace_block_bio_complete(bio->bi_bdev->bd_disk->queue, bio);
+ bio_clear_flag(bio, BIO_TRACE_COMPLETION);
+ }
+
/*
* Need to have a real endio function for chained bios, otherwise
* various corner cases will break (like stacking block devices that
@@ -1439,11 +1443,6 @@ again:
goto again;
}
- if (bio->bi_bdev && bio_flagged(bio, BIO_TRACE_COMPLETION)) {
- trace_block_bio_complete(bio->bi_bdev->bd_disk->queue, bio);
- bio_clear_flag(bio, BIO_TRACE_COMPLETION);
- }
-
blk_throtl_bio_endio(bio);
/* release cgroup info */
bio_uninit(bio);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 342/700] blk-mq: update hctx->dispatch_busy in case of real scheduler
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (340 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 341/700] block: fix trace completion for chained bio Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 343/700] ocfs2: fix snprintf() checking Greg Kroah-Hartman
` (363 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Kara, Ming Lei, Jens Axboe, Sasha Levin
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit cb9516be7708a2a18ec0a19fe3a225b5b3bc92c7 ]
Commit 6e6fcbc27e77 ("blk-mq: support batching dispatch in case of io")
starts to support io batching submission by using hctx->dispatch_busy.
However, blk_mq_update_dispatch_busy() isn't changed to update hctx->dispatch_busy
in that commit, so fix the issue by updating hctx->dispatch_busy in case
of real scheduler.
Reported-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Fixes: 6e6fcbc27e77 ("blk-mq: support batching dispatch in case of io")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210625020248.1630497-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-mq.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index d06ff908f3d9..6a982a277176 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1223,9 +1223,6 @@ static void blk_mq_update_dispatch_busy(struct blk_mq_hw_ctx *hctx, bool busy)
{
unsigned int ewma;
- if (hctx->queue->elevator)
- return;
-
ewma = hctx->dispatch_busy;
if (!ewma && !busy)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 343/700] ocfs2: fix snprintf() checking
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (341 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 342/700] blk-mq: update hctx->dispatch_busy in case of real scheduler Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 344/700] dax: fix ENOMEM handling in grab_mapping_entry() Greg Kroah-Hartman
` (362 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Joseph Qi,
Mark Fasheh, Joel Becker, Junxiao Bi, Changwei Ge, Gang He,
Jun Piao, Andrew Morton, Linus Torvalds, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 54e948c60cc843b6e84dc44496edc91f51d2a28e ]
The snprintf() function returns the number of bytes which would have been
printed if the buffer was large enough. In other words it can return ">=
remain" but this code assumes it returns "== remain".
The run time impact of this bug is not very severe. The next iteration
through the loop would trigger a WARN() when we pass a negative limit to
snprintf(). We would then return success instead of -E2BIG.
The kernel implementation of snprintf() will never return negatives so
there is no need to check and I have deleted that dead code.
Link: https://lkml.kernel.org/r/20210511135350.GV1955@kadam
Fixes: a860f6eb4c6a ("ocfs2: sysfile interfaces for online file check")
Fixes: 74ae4e104dfc ("ocfs2: Create stack glue sysfs files.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ocfs2/filecheck.c | 6 +-----
fs/ocfs2/stackglue.c | 8 ++------
2 files changed, 3 insertions(+), 11 deletions(-)
diff --git a/fs/ocfs2/filecheck.c b/fs/ocfs2/filecheck.c
index 50f11bfdc8c2..82a3edc4aea4 100644
--- a/fs/ocfs2/filecheck.c
+++ b/fs/ocfs2/filecheck.c
@@ -328,11 +328,7 @@ static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
ret = snprintf(buf + total, remain, "%lu\t\t%u\t%s\n",
p->fe_ino, p->fe_done,
ocfs2_filecheck_error(p->fe_status));
- if (ret < 0) {
- total = ret;
- break;
- }
- if (ret == remain) {
+ if (ret >= remain) {
/* snprintf() didn't fit */
total = -E2BIG;
break;
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index a191094694c6..03eacb249f37 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -502,11 +502,7 @@ static ssize_t ocfs2_loaded_cluster_plugins_show(struct kobject *kobj,
list_for_each_entry(p, &ocfs2_stack_list, sp_list) {
ret = snprintf(buf, remain, "%s\n",
p->sp_name);
- if (ret < 0) {
- total = ret;
- break;
- }
- if (ret == remain) {
+ if (ret >= remain) {
/* snprintf() didn't fit */
total = -E2BIG;
break;
@@ -533,7 +529,7 @@ static ssize_t ocfs2_active_cluster_plugin_show(struct kobject *kobj,
if (active_stack) {
ret = snprintf(buf, PAGE_SIZE, "%s\n",
active_stack->sp_name);
- if (ret == PAGE_SIZE)
+ if (ret >= PAGE_SIZE)
ret = -E2BIG;
}
spin_unlock(&ocfs2_stack_lock);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 344/700] dax: fix ENOMEM handling in grab_mapping_entry()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (342 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 343/700] ocfs2: fix snprintf() checking Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 345/700] mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage() Greg Kroah-Hartman
` (361 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Kara, Dan Williams,
Matthew Wilcox, Aneesh Kumar K.V, Andrew Morton, Linus Torvalds,
Sasha Levin
From: Jan Kara <jack@suse.cz>
[ Upstream commit 1a14e3779dd58c16b30e56558146e5cc850ba8b0 ]
grab_mapping_entry() has a bug in handling of ENOMEM condition. Suppose
we have a PMD entry at index i which we are downgrading to a PTE entry.
grab_mapping_entry() will set pmd_downgrade to true, lock the entry, clear
the entry in xarray, and decrement mapping->nrpages. The it will call:
entry = dax_make_entry(pfn_to_pfn_t(0), flags);
dax_lock_entry(xas, entry);
which inserts new PTE entry into xarray. However this may fail allocating
the new node. We handle this by:
if (xas_nomem(xas, mapping_gfp_mask(mapping) & ~__GFP_HIGHMEM))
goto retry;
however pmd_downgrade stays set to true even though 'entry' returned from
get_unlocked_entry() will be NULL now. And we will go again through the
downgrade branch. This is mostly harmless except that mapping->nrpages is
decremented again and we temporarily have an invalid entry stored in
xarray. Fix the problem by setting pmd_downgrade to false each time we
lookup the entry we work with so that it matches the entry we found.
Link: https://lkml.kernel.org/r/20210622160015.18004-1-jack@suse.cz
Fixes: b15cd800682f ("dax: Convert page fault handlers to XArray")
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/dax.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/dax.c b/fs/dax.c
index df5485b4bddf..d5d7b9393bca 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -488,10 +488,11 @@ static void *grab_mapping_entry(struct xa_state *xas,
struct address_space *mapping, unsigned int order)
{
unsigned long index = xas->xa_index;
- bool pmd_downgrade = false; /* splitting PMD entry into PTE entries? */
+ bool pmd_downgrade; /* splitting PMD entry into PTE entries? */
void *entry;
retry:
+ pmd_downgrade = false;
xas_lock_irq(xas);
entry = get_unlocked_entry(xas, order);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 345/700] mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (343 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 344/700] dax: fix ENOMEM handling in grab_mapping_entry() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 346/700] mm: mmap_lock: use local locks instead of disabling preemption Greg Kroah-Hartman
` (360 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Anshuman Khandual, Aneesh Kumar K.V,
Christophe Leroy, Andrew Morton, Linus Torvalds, Sasha Levin
From: Anshuman Khandual <anshuman.khandual@arm.com>
[ Upstream commit 65ac1a60a57e2c55f2ac37f27095f6b012295e81 ]
On certain platforms, THP support could not just be validated via the
build option CONFIG_TRANSPARENT_HUGEPAGE. Instead
has_transparent_hugepage() also needs to be called upon to verify THP
runtime support. Otherwise the debug test will just run into unusable THP
helpers like in the case of a 4K hash config on powerpc platform [1].
This just moves all pfn_pmd() and pfn_pud() after THP runtime validation
with has_transparent_hugepage() which prevents the mentioned problem.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=213069
Link: https://lkml.kernel.org/r/1621397588-19211-1-git-send-email-anshuman.khandual@arm.com
Fixes: 787d563b8642 ("mm/debug_vm_pgtable: fix kernel crash by checking for THP support")
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/debug_vm_pgtable.c | 63 ++++++++++++++++++++++++++++++++++---------
1 file changed, 51 insertions(+), 12 deletions(-)
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 726fd2030f64..12ebc97e8b43 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -146,13 +146,14 @@ static void __init pte_savedwrite_tests(unsigned long pfn, pgprot_t prot)
static void __init pmd_basic_tests(unsigned long pfn, int idx)
{
pgprot_t prot = protection_map[idx];
- pmd_t pmd = pfn_pmd(pfn, prot);
unsigned long val = idx, *ptr = &val;
+ pmd_t pmd;
if (!has_transparent_hugepage())
return;
pr_debug("Validating PMD basic (%pGv)\n", ptr);
+ pmd = pfn_pmd(pfn, prot);
/*
* This test needs to be executed after the given page table entry
@@ -185,7 +186,7 @@ static void __init pmd_advanced_tests(struct mm_struct *mm,
unsigned long pfn, unsigned long vaddr,
pgprot_t prot, pgtable_t pgtable)
{
- pmd_t pmd = pfn_pmd(pfn, prot);
+ pmd_t pmd;
if (!has_transparent_hugepage())
return;
@@ -232,9 +233,14 @@ static void __init pmd_advanced_tests(struct mm_struct *mm,
static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot)
{
- pmd_t pmd = pfn_pmd(pfn, prot);
+ pmd_t pmd;
+
+ if (!has_transparent_hugepage())
+ return;
pr_debug("Validating PMD leaf\n");
+ pmd = pfn_pmd(pfn, prot);
+
/*
* PMD based THP is a leaf entry.
*/
@@ -267,12 +273,16 @@ static void __init pmd_huge_tests(pmd_t *pmdp, unsigned long pfn, pgprot_t prot)
static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot)
{
- pmd_t pmd = pfn_pmd(pfn, prot);
+ pmd_t pmd;
if (!IS_ENABLED(CONFIG_NUMA_BALANCING))
return;
+ if (!has_transparent_hugepage())
+ return;
+
pr_debug("Validating PMD saved write\n");
+ pmd = pfn_pmd(pfn, prot);
WARN_ON(!pmd_savedwrite(pmd_mk_savedwrite(pmd_clear_savedwrite(pmd))));
WARN_ON(pmd_savedwrite(pmd_clear_savedwrite(pmd_mk_savedwrite(pmd))));
}
@@ -281,13 +291,14 @@ static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot)
static void __init pud_basic_tests(struct mm_struct *mm, unsigned long pfn, int idx)
{
pgprot_t prot = protection_map[idx];
- pud_t pud = pfn_pud(pfn, prot);
unsigned long val = idx, *ptr = &val;
+ pud_t pud;
if (!has_transparent_hugepage())
return;
pr_debug("Validating PUD basic (%pGv)\n", ptr);
+ pud = pfn_pud(pfn, prot);
/*
* This test needs to be executed after the given page table entry
@@ -323,7 +334,7 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
unsigned long pfn, unsigned long vaddr,
pgprot_t prot)
{
- pud_t pud = pfn_pud(pfn, prot);
+ pud_t pud;
if (!has_transparent_hugepage())
return;
@@ -332,6 +343,7 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
/* Align the address wrt HPAGE_PUD_SIZE */
vaddr &= HPAGE_PUD_MASK;
+ pud = pfn_pud(pfn, prot);
set_pud_at(mm, vaddr, pudp, pud);
pudp_set_wrprotect(mm, vaddr, pudp);
pud = READ_ONCE(*pudp);
@@ -370,9 +382,13 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot)
{
- pud_t pud = pfn_pud(pfn, prot);
+ pud_t pud;
+
+ if (!has_transparent_hugepage())
+ return;
pr_debug("Validating PUD leaf\n");
+ pud = pfn_pud(pfn, prot);
/*
* PUD based THP is a leaf entry.
*/
@@ -654,12 +670,16 @@ static void __init pte_protnone_tests(unsigned long pfn, pgprot_t prot)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static void __init pmd_protnone_tests(unsigned long pfn, pgprot_t prot)
{
- pmd_t pmd = pmd_mkhuge(pfn_pmd(pfn, prot));
+ pmd_t pmd;
if (!IS_ENABLED(CONFIG_NUMA_BALANCING))
return;
+ if (!has_transparent_hugepage())
+ return;
+
pr_debug("Validating PMD protnone\n");
+ pmd = pmd_mkhuge(pfn_pmd(pfn, prot));
WARN_ON(!pmd_protnone(pmd));
WARN_ON(!pmd_present(pmd));
}
@@ -679,18 +699,26 @@ static void __init pte_devmap_tests(unsigned long pfn, pgprot_t prot)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static void __init pmd_devmap_tests(unsigned long pfn, pgprot_t prot)
{
- pmd_t pmd = pfn_pmd(pfn, prot);
+ pmd_t pmd;
+
+ if (!has_transparent_hugepage())
+ return;
pr_debug("Validating PMD devmap\n");
+ pmd = pfn_pmd(pfn, prot);
WARN_ON(!pmd_devmap(pmd_mkdevmap(pmd)));
}
#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
static void __init pud_devmap_tests(unsigned long pfn, pgprot_t prot)
{
- pud_t pud = pfn_pud(pfn, prot);
+ pud_t pud;
+
+ if (!has_transparent_hugepage())
+ return;
pr_debug("Validating PUD devmap\n");
+ pud = pfn_pud(pfn, prot);
WARN_ON(!pud_devmap(pud_mkdevmap(pud)));
}
#else /* !CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
@@ -733,25 +761,33 @@ static void __init pte_swap_soft_dirty_tests(unsigned long pfn, pgprot_t prot)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static void __init pmd_soft_dirty_tests(unsigned long pfn, pgprot_t prot)
{
- pmd_t pmd = pfn_pmd(pfn, prot);
+ pmd_t pmd;
if (!IS_ENABLED(CONFIG_MEM_SOFT_DIRTY))
return;
+ if (!has_transparent_hugepage())
+ return;
+
pr_debug("Validating PMD soft dirty\n");
+ pmd = pfn_pmd(pfn, prot);
WARN_ON(!pmd_soft_dirty(pmd_mksoft_dirty(pmd)));
WARN_ON(pmd_soft_dirty(pmd_clear_soft_dirty(pmd)));
}
static void __init pmd_swap_soft_dirty_tests(unsigned long pfn, pgprot_t prot)
{
- pmd_t pmd = pfn_pmd(pfn, prot);
+ pmd_t pmd;
if (!IS_ENABLED(CONFIG_MEM_SOFT_DIRTY) ||
!IS_ENABLED(CONFIG_ARCH_ENABLE_THP_MIGRATION))
return;
+ if (!has_transparent_hugepage())
+ return;
+
pr_debug("Validating PMD swap soft dirty\n");
+ pmd = pfn_pmd(pfn, prot);
WARN_ON(!pmd_swp_soft_dirty(pmd_swp_mksoft_dirty(pmd)));
WARN_ON(pmd_swp_soft_dirty(pmd_swp_clear_soft_dirty(pmd)));
}
@@ -780,6 +816,9 @@ static void __init pmd_swap_tests(unsigned long pfn, pgprot_t prot)
swp_entry_t swp;
pmd_t pmd;
+ if (!has_transparent_hugepage())
+ return;
+
pr_debug("Validating PMD swap\n");
pmd = pfn_pmd(pfn, prot);
swp = __pmd_to_swp_entry(pmd);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 346/700] mm: mmap_lock: use local locks instead of disabling preemption
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (344 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 345/700] mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 347/700] swap: fix do_swap_page() race with swapoff Greg Kroah-Hartman
` (359 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nicolas Saenz Julienne,
Axel Rasmussen, Vlastimil Babka, Steven Rostedt, Andrew Morton,
Linus Torvalds, Sasha Levin
From: Nicolas Saenz Julienne <nsaenzju@redhat.com>
[ Upstream commit 832b50725373e8c46781b7d4db104ec9cf564a6b ]
mmap_lock will explicitly disable/enable preemption upon manipulating its
local CPU variables. This is to be expected, but in this case, it doesn't
play well with PREEMPT_RT. The preemption disabled code section also
takes a spin-lock. Spin-locks in RT systems will try to schedule, which
is exactly what we're trying to avoid.
To mitigate this, convert the explicit preemption handling to local_locks.
Which are RT aware, and will disable migration instead of preemption when
PREEMPT_RT=y.
The faulty call trace looks like the following:
__mmap_lock_do_trace_*()
preempt_disable()
get_mm_memcg_path()
cgroup_path()
kernfs_path_from_node()
spin_lock_irqsave() /* Scheduling while atomic! */
Link: https://lkml.kernel.org/r/20210604163506.2103900-1-nsaenzju@redhat.com
Fixes: 2b5067a8143e3 ("mm: mmap_lock: add tracepoints around lock acquisition ")
Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Tested-by: Axel Rasmussen <axelrasmussen@google.com>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/mmap_lock.c | 33 ++++++++++++++++++++++-----------
1 file changed, 22 insertions(+), 11 deletions(-)
diff --git a/mm/mmap_lock.c b/mm/mmap_lock.c
index dcdde4f722a4..2ae3f33b85b1 100644
--- a/mm/mmap_lock.c
+++ b/mm/mmap_lock.c
@@ -11,6 +11,7 @@
#include <linux/rcupdate.h>
#include <linux/smp.h>
#include <linux/trace_events.h>
+#include <linux/local_lock.h>
EXPORT_TRACEPOINT_SYMBOL(mmap_lock_start_locking);
EXPORT_TRACEPOINT_SYMBOL(mmap_lock_acquire_returned);
@@ -39,21 +40,30 @@ static int reg_refcount; /* Protected by reg_lock. */
*/
#define CONTEXT_COUNT 4
-static DEFINE_PER_CPU(char __rcu *, memcg_path_buf);
+struct memcg_path {
+ local_lock_t lock;
+ char __rcu *buf;
+ local_t buf_idx;
+};
+static DEFINE_PER_CPU(struct memcg_path, memcg_paths) = {
+ .lock = INIT_LOCAL_LOCK(lock),
+ .buf_idx = LOCAL_INIT(0),
+};
+
static char **tmp_bufs;
-static DEFINE_PER_CPU(int, memcg_path_buf_idx);
/* Called with reg_lock held. */
static void free_memcg_path_bufs(void)
{
+ struct memcg_path *memcg_path;
int cpu;
char **old = tmp_bufs;
for_each_possible_cpu(cpu) {
- *(old++) = rcu_dereference_protected(
- per_cpu(memcg_path_buf, cpu),
+ memcg_path = per_cpu_ptr(&memcg_paths, cpu);
+ *(old++) = rcu_dereference_protected(memcg_path->buf,
lockdep_is_held(®_lock));
- rcu_assign_pointer(per_cpu(memcg_path_buf, cpu), NULL);
+ rcu_assign_pointer(memcg_path->buf, NULL);
}
/* Wait for inflight memcg_path_buf users to finish. */
@@ -88,7 +98,7 @@ int trace_mmap_lock_reg(void)
new = kmalloc(MEMCG_PATH_BUF_SIZE * CONTEXT_COUNT, GFP_KERNEL);
if (new == NULL)
goto out_fail_free;
- rcu_assign_pointer(per_cpu(memcg_path_buf, cpu), new);
+ rcu_assign_pointer(per_cpu_ptr(&memcg_paths, cpu)->buf, new);
/* Don't need to wait for inflights, they'd have gotten NULL. */
}
@@ -122,23 +132,24 @@ out:
static inline char *get_memcg_path_buf(void)
{
+ struct memcg_path *memcg_path = this_cpu_ptr(&memcg_paths);
char *buf;
int idx;
rcu_read_lock();
- buf = rcu_dereference(*this_cpu_ptr(&memcg_path_buf));
+ buf = rcu_dereference(memcg_path->buf);
if (buf == NULL) {
rcu_read_unlock();
return NULL;
}
- idx = this_cpu_add_return(memcg_path_buf_idx, MEMCG_PATH_BUF_SIZE) -
+ idx = local_add_return(MEMCG_PATH_BUF_SIZE, &memcg_path->buf_idx) -
MEMCG_PATH_BUF_SIZE;
return &buf[idx];
}
static inline void put_memcg_path_buf(void)
{
- this_cpu_sub(memcg_path_buf_idx, MEMCG_PATH_BUF_SIZE);
+ local_sub(MEMCG_PATH_BUF_SIZE, &this_cpu_ptr(&memcg_paths)->buf_idx);
rcu_read_unlock();
}
@@ -179,14 +190,14 @@ out:
#define TRACE_MMAP_LOCK_EVENT(type, mm, ...) \
do { \
const char *memcg_path; \
- preempt_disable(); \
+ local_lock(&memcg_paths.lock); \
memcg_path = get_mm_memcg_path(mm); \
trace_mmap_lock_##type(mm, \
memcg_path != NULL ? memcg_path : "", \
##__VA_ARGS__); \
if (likely(memcg_path != NULL)) \
put_memcg_path_buf(); \
- preempt_enable(); \
+ local_unlock(&memcg_paths.lock); \
} while (0)
#else /* !CONFIG_MEMCG */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 347/700] swap: fix do_swap_page() race with swapoff
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (345 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 346/700] mm: mmap_lock: use local locks instead of disabling preemption Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 348/700] mm/shmem: fix shmem_swapin() " Greg Kroah-Hartman
` (358 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Huang, Ying, Alex Shi,
David Hildenbrand, Dennis Zhou, Hugh Dickins, Johannes Weiner,
Joonsoo Kim, Matthew Wilcox, Michal Hocko, Minchan Kim, Tim Chen,
Wei Yang, Yang Shi, Yu Zhao, Andrew Morton, Linus Torvalds,
Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit 2799e77529c2a25492a4395db93996e3dacd762d ]
When I was investigating the swap code, I found the below possible race
window:
CPU 1 CPU 2
----- -----
do_swap_page
if (data_race(si->flags & SWP_SYNCHRONOUS_IO)
swap_readpage
if (data_race(sis->flags & SWP_FS_OPS)) {
swapoff
..
p->swap_file = NULL;
..
struct file *swap_file = sis->swap_file;
struct address_space *mapping = swap_file->f_mapping;[oops!]
Note that for the pages that are swapped in through swap cache, this isn't
an issue. Because the page is locked, and the swap entry will be marked
with SWAP_HAS_CACHE, so swapoff() can not proceed until the page has been
unlocked.
Fix this race by using get/put_swap_device() to guard against concurrent
swapoff.
Link: https://lkml.kernel.org/r/20210426123316.806267-3-linmiaohe@huawei.com
Fixes: 0bcac06f27d7 ("mm,swap: skip swapcache for swapin of synchronous device")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/swap.h | 9 +++++++++
mm/memory.c | 11 +++++++++--
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 4cc6ec3bf0ab..7482f8b968ea 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -504,6 +504,15 @@ static inline struct swap_info_struct *swp_swap_info(swp_entry_t entry)
return NULL;
}
+static inline struct swap_info_struct *get_swap_device(swp_entry_t entry)
+{
+ return NULL;
+}
+
+static inline void put_swap_device(struct swap_info_struct *si)
+{
+}
+
#define swap_address_space(entry) (NULL)
#define get_nr_swap_pages() 0L
#define total_swap_pages 0L
diff --git a/mm/memory.c b/mm/memory.c
index 36624986130b..e0073089bc9f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3310,6 +3310,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
struct page *page = NULL, *swapcache;
+ struct swap_info_struct *si = NULL;
swp_entry_t entry;
pte_t pte;
int locked;
@@ -3337,14 +3338,16 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
goto out;
}
+ /* Prevent swapoff from happening to us. */
+ si = get_swap_device(entry);
+ if (unlikely(!si))
+ goto out;
delayacct_set_flag(DELAYACCT_PF_SWAPIN);
page = lookup_swap_cache(entry, vma, vmf->address);
swapcache = page;
if (!page) {
- struct swap_info_struct *si = swp_swap_info(entry);
-
if (data_race(si->flags & SWP_SYNCHRONOUS_IO) &&
__swap_count(entry) == 1) {
/* skip swapcache */
@@ -3515,6 +3518,8 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
unlock:
pte_unmap_unlock(vmf->pte, vmf->ptl);
out:
+ if (si)
+ put_swap_device(si);
return ret;
out_nomap:
pte_unmap_unlock(vmf->pte, vmf->ptl);
@@ -3526,6 +3531,8 @@ out_release:
unlock_page(swapcache);
put_page(swapcache);
}
+ if (si)
+ put_swap_device(si);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 348/700] mm/shmem: fix shmem_swapin() race with swapoff
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (346 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 347/700] swap: fix do_swap_page() race with swapoff Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 349/700] mm: memcg/slab: properly set up gfp flags for objcg pointer array Greg Kroah-Hartman
` (357 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Huang, Ying, Dennis Zhou,
Tim Chen, Hugh Dickins, Johannes Weiner, Michal Hocko,
Joonsoo Kim, Alex Shi, Matthew Wilcox, Minchan Kim, Wei Yang,
Yang Shi, David Hildenbrand, Yu Zhao, Andrew Morton,
Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit 2efa33fc7f6ec94a3a538c1a264273c889be2b36 ]
When I was investigating the swap code, I found the below possible race
window:
CPU 1 CPU 2
----- -----
shmem_swapin
swap_cluster_readahead
if (likely(si->flags & (SWP_BLKDEV | SWP_FS_OPS))) {
swapoff
..
si->swap_file = NULL;
..
struct inode *inode = si->swap_file->f_mapping->host;[oops!]
Close this race window by using get/put_swap_device() to guard against
concurrent swapoff.
Link: https://lkml.kernel.org/r/20210426123316.806267-5-linmiaohe@huawei.com
Fixes: 8fd2e0b505d1 ("mm: swap: check if swap backing device is congested or not")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/shmem.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index 6e99a4ad6e1f..1a03744240e7 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1696,7 +1696,8 @@ static int shmem_swapin_page(struct inode *inode, pgoff_t index,
struct address_space *mapping = inode->i_mapping;
struct shmem_inode_info *info = SHMEM_I(inode);
struct mm_struct *charge_mm = vma ? vma->vm_mm : current->mm;
- struct page *page;
+ struct swap_info_struct *si;
+ struct page *page = NULL;
swp_entry_t swap;
int error;
@@ -1704,6 +1705,12 @@ static int shmem_swapin_page(struct inode *inode, pgoff_t index,
swap = radix_to_swp_entry(*pagep);
*pagep = NULL;
+ /* Prevent swapoff from happening to us. */
+ si = get_swap_device(swap);
+ if (!si) {
+ error = EINVAL;
+ goto failed;
+ }
/* Look it up and read it in.. */
page = lookup_swap_cache(swap, NULL, 0);
if (!page) {
@@ -1765,6 +1772,8 @@ static int shmem_swapin_page(struct inode *inode, pgoff_t index,
swap_free(swap);
*pagep = page;
+ if (si)
+ put_swap_device(si);
return 0;
failed:
if (!shmem_confirm_swap(mapping, index, swap))
@@ -1775,6 +1784,9 @@ unlock:
put_page(page);
}
+ if (si)
+ put_swap_device(si);
+
return error;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 349/700] mm: memcg/slab: properly set up gfp flags for objcg pointer array
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (347 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 348/700] mm/shmem: fix shmem_swapin() " Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 350/700] mm/page_alloc: fix counting of managed_pages Greg Kroah-Hartman
` (356 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Waiman Long, Shakeel Butt,
Roman Gushchin, Vlastimil Babka, Johannes Weiner, Michal Hocko,
Vladimir Davydov, Christoph Lameter, Pekka Enberg,
David Rientjes, Joonsoo Kim, Andrew Morton, Linus Torvalds,
Sasha Levin
From: Waiman Long <longman@redhat.com>
[ Upstream commit 41eb5df1cbc9b302fc263ad7c9f38cfc38b4df61 ]
Patch series "mm: memcg/slab: Fix objcg pointer array handling problem", v4.
Since the merging of the new slab memory controller in v5.9, the page
structure stores a pointer to objcg pointer array for slab pages. When
the slab has no used objects, it can be freed in free_slab() which will
call kfree() to free the objcg pointer array in
memcg_alloc_page_obj_cgroups(). If it happens that the objcg pointer
array is the last used object in its slab, that slab may then be freed
which may caused kfree() to be called again.
With the right workload, the slab cache may be set up in a way that allows
the recursive kfree() calling loop to nest deep enough to cause a kernel
stack overflow and panic the system. In fact, we have a reproducer that
can cause kernel stack overflow on a s390 system involving kmalloc-rcl-256
and kmalloc-rcl-128 slabs with the following kfree() loop recursively
called 74 times:
[ 285.520739] [<000000000ec432fc>] kfree+0x4bc/0x560 [ 285.520740]
[<000000000ec43466>] __free_slab+0xc6/0x228 [ 285.520741]
[<000000000ec41fc2>] __slab_free+0x3c2/0x3e0 [ 285.520742]
[<000000000ec432fc>] kfree+0x4bc/0x560 : While investigating this issue, I
also found an issue on the allocation side. If the objcg pointer array
happen to come from the same slab or a circular dependency linkage is
formed with multiple slabs, those affected slabs can never be freed again.
This patch series addresses these two issues by introducing a new set of
kmalloc-cg-<n> caches split from kmalloc-<n> caches. The new set will
only contain non-reclaimable and non-dma objects that are accounted in
memory cgroups whereas the old set are now for unaccounted objects only.
By making this split, all the objcg pointer arrays will come from the
kmalloc-<n> caches, but those caches will never hold any objcg pointer
array. As a result, deeply nested kfree() call and the unfreeable slab
problems are now gone.
This patch (of 4):
Since the merging of the new slab memory controller in v5.9, the page
structure may store a pointer to obj_cgroup pointer array for slab pages.
Currently, only the __GFP_ACCOUNT bit is masked off. However, the array
is not readily reclaimable and doesn't need to come from the DMA buffer.
So those GFP bits should be masked off as well.
Do the flag bit clearing at memcg_alloc_page_obj_cgroups() to make sure
that it is consistently applied no matter where it is called.
Link: https://lkml.kernel.org/r/20210505200610.13943-1-longman@redhat.com
Link: https://lkml.kernel.org/r/20210505200610.13943-2-longman@redhat.com
Fixes: 286e04b8ed7a ("mm: memcg/slab: allocate obj_cgroups for non-root slab pages")
Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/memcontrol.c | 8 ++++++++
mm/slab.h | 1 -
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e876ba693998..769b73151f05 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2906,6 +2906,13 @@ static void commit_charge(struct page *page, struct mem_cgroup *memcg)
}
#ifdef CONFIG_MEMCG_KMEM
+/*
+ * The allocated objcg pointers array is not accounted directly.
+ * Moreover, it should not come from DMA buffer and is not readily
+ * reclaimable. So those GFP bits should be masked off.
+ */
+#define OBJCGS_CLEAR_MASK (__GFP_DMA | __GFP_RECLAIMABLE | __GFP_ACCOUNT)
+
int memcg_alloc_page_obj_cgroups(struct page *page, struct kmem_cache *s,
gfp_t gfp, bool new_page)
{
@@ -2913,6 +2920,7 @@ int memcg_alloc_page_obj_cgroups(struct page *page, struct kmem_cache *s,
unsigned long memcg_data;
void *vec;
+ gfp &= ~OBJCGS_CLEAR_MASK;
vec = kcalloc_node(objects, sizeof(struct obj_cgroup *), gfp,
page_to_nid(page));
if (!vec)
diff --git a/mm/slab.h b/mm/slab.h
index 076582f58f68..440133f93a53 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -309,7 +309,6 @@ static inline void memcg_slab_post_alloc_hook(struct kmem_cache *s,
if (!memcg_kmem_enabled() || !objcg)
return;
- flags &= ~__GFP_ACCOUNT;
for (i = 0; i < size; i++) {
if (likely(p[i])) {
page = virt_to_head_page(p[i]);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 350/700] mm/page_alloc: fix counting of managed_pages
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (348 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 349/700] mm: memcg/slab: properly set up gfp flags for objcg pointer array Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 351/700] xfrm: xfrm_state_mtu should return at least 1280 for ipv6 Greg Kroah-Hartman
` (355 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Liu Shixin, yangerkun, Baoquan He,
David Hildenbrand, Andrew Morton, Linus Torvalds, Sasha Levin
From: Liu Shixin <liushixin2@huawei.com>
[ Upstream commit f7ec104458e00d27a190348ac3a513f3df3699a4 ]
commit f63661566fad ("mm/page_alloc.c: clear out zone->lowmem_reserve[] if
the zone is empty") clears out zone->lowmem_reserve[] if zone is empty.
But when zone is not empty and sysctl_lowmem_reserve_ratio[i] is set to
zero, zone_managed_pages(zone) is not counted in the managed_pages either.
This is inconsistent with the description of lowmem_reserve, so fix it.
Link: https://lkml.kernel.org/r/20210527125707.3760259-1-liushixin2@huawei.com
Fixes: f63661566fad ("mm/page_alloc.c: clear out zone->lowmem_reserve[] if the zone is empty")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Reported-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/page_alloc.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 25c83640d47a..382af5377274 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7894,14 +7894,14 @@ static void setup_per_zone_lowmem_reserve(void)
unsigned long managed_pages = 0;
for (j = i + 1; j < MAX_NR_ZONES; j++) {
- if (clear) {
- zone->lowmem_reserve[j] = 0;
- } else {
- struct zone *upper_zone = &pgdat->node_zones[j];
+ struct zone *upper_zone = &pgdat->node_zones[j];
+
+ managed_pages += zone_managed_pages(upper_zone);
- managed_pages += zone_managed_pages(upper_zone);
+ if (clear)
+ zone->lowmem_reserve[j] = 0;
+ else
zone->lowmem_reserve[j] = managed_pages / ratio;
- }
}
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 351/700] xfrm: xfrm_state_mtu should return at least 1280 for ipv6
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (349 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 350/700] mm/page_alloc: fix counting of managed_pages Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 352/700] drm/bridge/sii8620: fix dependency on extcon Greg Kroah-Hartman
` (354 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jianwen Ji, Sabrina Dubroca,
Steffen Klassert, Sasha Levin
From: Sabrina Dubroca <sd@queasysnail.net>
[ Upstream commit b515d2637276a3810d6595e10ab02c13bfd0b63a ]
Jianwen reported that IPv6 Interoperability tests are failing in an
IPsec case where one of the links between the IPsec peers has an MTU
of 1280. The peer generates a packet larger than this MTU, the router
replies with a "Packet too big" message indicating an MTU of 1280.
When the peer tries to send another large packet, xfrm_state_mtu
returns 1280 - ipsec_overhead, which causes ip6_setup_cork to fail
with EINVAL.
We can fix this by forcing xfrm_state_mtu to return IPV6_MIN_MTU when
IPv6 is used. After going through IPsec, the packet will then be
fragmented to obey the actual network's PMTU, just before leaving the
host.
Currently, TFC padding is capped to PMTU - overhead to avoid
fragementation: after padding and encapsulation, we still fit within
the PMTU. That behavior is preserved in this patch.
Fixes: 91657eafb64b ("xfrm: take net hdr len into account for esp payload size calculation")
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/xfrm.h | 1 +
net/ipv4/esp4.c | 2 +-
net/ipv6/esp6.c | 2 +-
net/xfrm/xfrm_state.c | 14 ++++++++++++--
4 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index c58a6d4eb610..6232a5f048bd 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1546,6 +1546,7 @@ void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
int xfrm_init_replay(struct xfrm_state *x);
+u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu);
u32 xfrm_state_mtu(struct xfrm_state *x, int mtu);
int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload);
int xfrm_init_state(struct xfrm_state *x);
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 4b834bbf95e0..ed9857b2875d 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -673,7 +673,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
struct xfrm_dst *dst = (struct xfrm_dst *)skb_dst(skb);
u32 padto;
- padto = min(x->tfcpad, xfrm_state_mtu(x, dst->child_mtu_cached));
+ padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached));
if (skb->len < padto)
esp.tfclen = padto - skb->len;
}
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 727d791ed5e6..9d1327b36bd3 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -708,7 +708,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
struct xfrm_dst *dst = (struct xfrm_dst *)skb_dst(skb);
u32 padto;
- padto = min(x->tfcpad, xfrm_state_mtu(x, dst->child_mtu_cached));
+ padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached));
if (skb->len < padto)
esp.tfclen = padto - skb->len;
}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 4496f7efa220..c25586156c6a 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2518,7 +2518,7 @@ void xfrm_state_delete_tunnel(struct xfrm_state *x)
}
EXPORT_SYMBOL(xfrm_state_delete_tunnel);
-u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
+u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu)
{
const struct xfrm_type *type = READ_ONCE(x->type);
struct crypto_aead *aead;
@@ -2549,7 +2549,17 @@ u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
return ((mtu - x->props.header_len - crypto_aead_authsize(aead) -
net_adj) & ~(blksize - 1)) + net_adj - 2;
}
-EXPORT_SYMBOL_GPL(xfrm_state_mtu);
+EXPORT_SYMBOL_GPL(__xfrm_state_mtu);
+
+u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
+{
+ mtu = __xfrm_state_mtu(x, mtu);
+
+ if (x->props.family == AF_INET6 && mtu < IPV6_MIN_MTU)
+ return IPV6_MIN_MTU;
+
+ return mtu;
+}
int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload)
{
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 352/700] drm/bridge/sii8620: fix dependency on extcon
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (350 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 351/700] xfrm: xfrm_state_mtu should return at least 1280 for ipv6 Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 353/700] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Greg Kroah-Hartman
` (353 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Robert Foss,
Randy Dunlap, Sasha Levin
From: Robert Foss <robert.foss@linaro.org>
[ Upstream commit 08319adbdde15ef7cee1970336f63461254baa2a ]
The DRM_SIL_SII8620 kconfig has a weak `imply` dependency
on EXTCON, which causes issues when sii8620 is built
as a builtin and EXTCON is built as a module.
The symptoms are 'undefined reference' errors caused
by the symbols in EXTCON not being available
to the sii8620 driver.
Fixes: 688838442147 ("drm/bridge/sii8620: use micro-USB cable detection logic to detect MHL")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210419090124.153560-1-robert.foss@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/bridge/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index bc60fc4728d7..8d5bae9e745b 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -143,7 +143,7 @@ config DRM_SIL_SII8620
tristate "Silicon Image SII8620 HDMI/MHL bridge"
depends on OF
select DRM_KMS_HELPER
- imply EXTCON
+ select EXTCON
depends on RC_CORE || !RC_CORE
help
Silicon Image SII8620 HDMI/MHL bridge chip driver.
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 353/700] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (351 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 352/700] drm/bridge/sii8620: fix dependency on extcon Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 354/700] drm/amd/dc: Fix a missing check bug in dm_dp_mst_detect() Greg Kroah-Hartman
` (352 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Douglas Anderson, Andrzej Hajda,
Laurent Pinchart, Sasha Levin
From: Douglas Anderson <dianders@chromium.org>
[ Upstream commit bab5cca7e609952b069a550e39fe4893149fb658 ]
The drm_bridge_chain_pre_enable() is not the proper opposite of
drm_bridge_chain_post_disable(). It continues along the chain to
_before_ the starting bridge. Let's fix that.
Fixes: 05193dc38197 ("drm/bridge: Make the bridge chain a double-linked list")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210416153909.v4.1.If62a003f76a2bc4ccc6c53565becc05d2aad4430@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/drm_bridge.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 64f0effb52ac..044acd07c153 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -522,6 +522,9 @@ void drm_bridge_chain_pre_enable(struct drm_bridge *bridge)
list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) {
if (iter->funcs->pre_enable)
iter->funcs->pre_enable(iter);
+
+ if (iter == bridge)
+ break;
}
}
EXPORT_SYMBOL(drm_bridge_chain_pre_enable);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 354/700] drm/amd/dc: Fix a missing check bug in dm_dp_mst_detect()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (352 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 353/700] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 355/700] drm/ast: Fix missing conversions to managed API Greg Kroah-Hartman
` (351 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yingjie Wang, Alex Deucher, Sasha Levin
From: Yingjie Wang <wangyingjie55@126.com>
[ Upstream commit 655c0ed19772d92c9665ed08bdc5202acc096dda ]
In dm_dp_mst_detect(), We should check whether or not @connector
has been unregistered from userspace. If the connector is unregistered,
we should return disconnected status.
Fixes: 4562236b3bc0 ("drm/amd/dc: Add dc display driver (v2)")
Signed-off-by: Yingjie Wang <wangyingjie55@126.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 41b09ab22233..b478129a7477 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -270,6 +270,9 @@ dm_dp_mst_detect(struct drm_connector *connector,
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
struct amdgpu_dm_connector *master = aconnector->mst_port;
+ if (drm_connector_is_unregistered(connector))
+ return connector_status_disconnected;
+
return drm_dp_mst_detect_port(connector, ctx, &master->mst_mgr,
aconnector->port);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 355/700] drm/ast: Fix missing conversions to managed API
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (353 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 354/700] drm/amd/dc: Fix a missing check bug in dm_dp_mst_detect() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 356/700] video: fbdev: imxfb: Fix an error message Greg Kroah-Hartman
` (350 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Takashi Iwai, Thomas Zimmermann, Sasha Levin
From: Takashi Iwai <tiwai@suse.de>
[ Upstream commit 9ea172a9a3f4a7c5e876469509fc18ddefc7d49d ]
The commit 7cbb93d89838 ("drm/ast: Use managed pci functions")
converted a few PCI accessors to the managed API and dropped the
manual pci_iounmap() calls, but it seems to have forgotten converting
pci_iomap() to the managed one. It resulted in the leftover resources
after the driver unbind. Let's fix them.
Fixes: 7cbb93d89838 ("drm/ast: Use managed pci functions")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421170458.21178-1-tiwai@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/ast/ast_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 0ac3c2039c4b..c29cc7f19863 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -413,7 +413,7 @@ struct ast_private *ast_device_create(const struct drm_driver *drv,
pci_set_drvdata(pdev, dev);
- ast->regs = pci_iomap(pdev, 1, 0);
+ ast->regs = pcim_iomap(pdev, 1, 0);
if (!ast->regs)
return ERR_PTR(-EIO);
@@ -429,7 +429,7 @@ struct ast_private *ast_device_create(const struct drm_driver *drv,
/* "map" IO regs if the above hasn't done so already */
if (!ast->ioregs) {
- ast->ioregs = pci_iomap(pdev, 2, 0);
+ ast->ioregs = pcim_iomap(pdev, 2, 0);
if (!ast->ioregs)
return ERR_PTR(-EIO);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 356/700] video: fbdev: imxfb: Fix an error message
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (354 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 355/700] drm/ast: Fix missing conversions to managed API Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 357/700] drm/imx: ipuv3-plane: do not advertise YUV formats on planes without CSC Greg Kroah-Hartman
` (349 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Uwe Kleine-König,
Christophe JAILLET, Daniel Vetter, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 767d724a160eb1cd00c86fb8c2e21fa1ab3c37ac ]
'ret' is known to be 0 here.
No error code is available, so just remove it from the error message.
Fixes: 72330b0eeefc ("i.MX Framebuffer: Use readl/writel instead of direct pointer deref")
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/d7b25026f82659da3c6f7159eea480faa9d738be.1620327302.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/video/fbdev/imxfb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index 7f8debd2da06..ad598257ab38 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -992,7 +992,7 @@ static int imxfb_probe(struct platform_device *pdev)
info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size,
&fbi->map_dma, GFP_KERNEL);
if (!info->screen_buffer) {
- dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret);
+ dev_err(&pdev->dev, "Failed to allocate video RAM\n");
ret = -ENOMEM;
goto failed_map;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 357/700] drm/imx: ipuv3-plane: do not advertise YUV formats on planes without CSC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (355 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 356/700] video: fbdev: imxfb: Fix an error message Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 358/700] drm/imx: ipuv3-plane: fix PRG modifiers after drm managed resource conversion Greg Kroah-Hartman
` (348 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Fabio Estevam, Philipp Zabel, Sasha Levin
From: Philipp Zabel <p.zabel@pengutronix.de>
[ Upstream commit 06841148c570832d4d247b0f6befc1922a84120b ]
Only planes that are displayed via the Display Processor (DP) path
support color space conversion. Limit formats on planes that are
shown via the direct Display Controller (DC) path to RGB.
Reported-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/imx/ipuv3-plane.c | 41 ++++++++++++++++++++++++++++---
1 file changed, 37 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index 075508051b5f..c5ff966e2ceb 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -35,7 +35,7 @@ static inline struct ipu_plane *to_ipu_plane(struct drm_plane *p)
return container_of(p, struct ipu_plane, base);
}
-static const uint32_t ipu_plane_formats[] = {
+static const uint32_t ipu_plane_all_formats[] = {
DRM_FORMAT_ARGB1555,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_ABGR1555,
@@ -72,6 +72,31 @@ static const uint32_t ipu_plane_formats[] = {
DRM_FORMAT_BGRX8888_A8,
};
+static const uint32_t ipu_plane_rgb_formats[] = {
+ DRM_FORMAT_ARGB1555,
+ DRM_FORMAT_XRGB1555,
+ DRM_FORMAT_ABGR1555,
+ DRM_FORMAT_XBGR1555,
+ DRM_FORMAT_RGBA5551,
+ DRM_FORMAT_BGRA5551,
+ DRM_FORMAT_ARGB4444,
+ DRM_FORMAT_ARGB8888,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ABGR8888,
+ DRM_FORMAT_XBGR8888,
+ DRM_FORMAT_RGBA8888,
+ DRM_FORMAT_RGBX8888,
+ DRM_FORMAT_BGRA8888,
+ DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_RGB565_A8,
+ DRM_FORMAT_BGR565_A8,
+ DRM_FORMAT_RGB888_A8,
+ DRM_FORMAT_BGR888_A8,
+ DRM_FORMAT_RGBX8888_A8,
+ DRM_FORMAT_BGRX8888_A8,
+};
+
static const uint64_t ipu_format_modifiers[] = {
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_MOD_INVALID
@@ -822,16 +847,24 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
struct ipu_plane *ipu_plane;
const uint64_t *modifiers = ipu_format_modifiers;
unsigned int zpos = (type == DRM_PLANE_TYPE_PRIMARY) ? 0 : 1;
+ unsigned int format_count;
+ const uint32_t *formats;
int ret;
DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n",
dma, dp, possible_crtcs);
+ if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG) {
+ formats = ipu_plane_all_formats;
+ format_count = ARRAY_SIZE(ipu_plane_all_formats);
+ } else {
+ formats = ipu_plane_rgb_formats;
+ format_count = ARRAY_SIZE(ipu_plane_rgb_formats);
+ }
ipu_plane = drmm_universal_plane_alloc(dev, struct ipu_plane, base,
possible_crtcs, &ipu_plane_funcs,
- ipu_plane_formats,
- ARRAY_SIZE(ipu_plane_formats),
- modifiers, type, NULL);
+ formats, format_count, modifiers,
+ type, NULL);
if (IS_ERR(ipu_plane)) {
DRM_ERROR("failed to allocate and initialize %s plane\n",
zpos ? "overlay" : "primary");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 358/700] drm/imx: ipuv3-plane: fix PRG modifiers after drm managed resource conversion
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (356 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 357/700] drm/imx: ipuv3-plane: do not advertise YUV formats on planes without CSC Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 359/700] net: mvpp2: Put fwnode in error case during ->probe() Greg Kroah-Hartman
` (347 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lucas Stach, Philipp Zabel, Sasha Levin
From: Lucas Stach <l.stach@pengutronix.de>
[ Upstream commit 17b9a94656fe19aef3647c4f93d93be51697ceb1 ]
The conversion to drm managed resources introduced two bugs: the plane is now
always initialized with the linear-only list, while the list with the Vivante
GPU modifiers should have been used when the PRG/PRE engines are present. This
masked another issue, as ipu_plane_format_mod_supported() is now called before
the private plane data is set up, so if a non-linear modifier is supplied in
the plane modifier list, we run into a NULL pointer dereference checking for
the PRG presence. To fix this just remove the check from this function, as we
know that it will only be called with a non-linear modifier, if the plane init
code has already determined that the PRG/PRE is present.
Fixes: 699e7e543f1a ("drm/imx: ipuv3-plane: use drm managed resources")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20210510145927.988661-1-l.stach@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/imx/ipuv3-plane.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index c5ff966e2ceb..8c08c8b36074 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -345,10 +345,11 @@ static bool ipu_plane_format_mod_supported(struct drm_plane *plane,
if (modifier == DRM_FORMAT_MOD_LINEAR)
return true;
- /* without a PRG there are no supported modifiers */
- if (!ipu_prg_present(ipu))
- return false;
-
+ /*
+ * Without a PRG the possible modifiers list only includes the linear
+ * modifier, so we always take the early return from this function and
+ * only end up here if the PRG is present.
+ */
return ipu_prg_format_supported(ipu, format, modifier);
}
@@ -861,6 +862,10 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
formats = ipu_plane_rgb_formats;
format_count = ARRAY_SIZE(ipu_plane_rgb_formats);
}
+
+ if (ipu_prg_present(ipu))
+ modifiers = pre_format_modifiers;
+
ipu_plane = drmm_universal_plane_alloc(dev, struct ipu_plane, base,
possible_crtcs, &ipu_plane_funcs,
formats, format_count, modifiers,
@@ -875,9 +880,6 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
ipu_plane->dma = dma;
ipu_plane->dp_flow = dp;
- if (ipu_prg_present(ipu))
- modifiers = pre_format_modifiers;
-
drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs);
if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 359/700] net: mvpp2: Put fwnode in error case during ->probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (357 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 358/700] drm/imx: ipuv3-plane: fix PRG modifiers after drm managed resource conversion Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 360/700] net: pch_gbe: Propagate error from devm_gpio_request_one() Greg Kroah-Hartman
` (346 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Marcin Wojtas, Andy Shevchenko,
David S. Miller, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 71f0891c84dfdc448736082ab0a00acd29853896 ]
In each iteration fwnode_for_each_available_child_node() bumps a reference
counting of a loop variable followed by dropping in on a next iteration,
Since in error case the loop is broken, we have to drop a reference count
by ourselves. Do it for port_fwnode in error case during ->probe().
Fixes: 248122212f68 ("net: mvpp2: use device_*/fwnode_* APIs instead of of_*")
Cc: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 6c81e4f175ac..bf06f2d785db 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7589,6 +7589,8 @@ static int mvpp2_probe(struct platform_device *pdev)
return 0;
err_port_probe:
+ fwnode_handle_put(port_fwnode);
+
i = 0;
fwnode_for_each_available_child_node(fwnode, port_fwnode) {
if (priv->port_list[i])
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 360/700] net: pch_gbe: Propagate error from devm_gpio_request_one()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (358 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 359/700] net: mvpp2: Put fwnode in error case during ->probe() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 361/700] pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin Greg Kroah-Hartman
` (345 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Shevchenko, Flavio Suligoi,
David S. Miller, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit 9e3617a7b84512bf96c04f9cf82d1a7257d33794 ]
If GPIO controller is not available yet we need to defer
the probe of GBE until provider will become available.
While here, drop GPIOF_EXPORT because it's deprecated and
may not be available.
Fixes: f1a26fdf5944 ("pch_gbe: Add MinnowBoard support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Flavio Suligoi <f.suligoi@asem.it>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 140cee7c459d..1b32a43f7024 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2531,9 +2531,13 @@ static int pch_gbe_probe(struct pci_dev *pdev,
adapter->pdev = pdev;
adapter->hw.back = adapter;
adapter->hw.reg = pcim_iomap_table(pdev)[PCH_GBE_PCI_BAR];
+
adapter->pdata = (struct pch_gbe_privdata *)pci_id->driver_data;
- if (adapter->pdata && adapter->pdata->platform_init)
- adapter->pdata->platform_init(pdev);
+ if (adapter->pdata && adapter->pdata->platform_init) {
+ ret = adapter->pdata->platform_init(pdev);
+ if (ret)
+ goto err_free_netdev;
+ }
adapter->ptp_pdev =
pci_get_domain_bus_and_slot(pci_domain_nr(adapter->pdev->bus),
@@ -2628,7 +2632,7 @@ err_free_netdev:
*/
static int pch_gbe_minnow_platform_init(struct pci_dev *pdev)
{
- unsigned long flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH | GPIOF_EXPORT;
+ unsigned long flags = GPIOF_OUT_INIT_HIGH;
unsigned gpio = MINNOW_PHY_RESET_GPIO;
int ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 361/700] pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (359 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 360/700] net: pch_gbe: Propagate error from devm_gpio_request_one() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 362/700] pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities Greg Kroah-Hartman
` (344 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Geert Uytterhoeven,
Niklas Söderlund, Sasha Levin
From: Geert Uytterhoeven <geert+renesas@glider.be>
[ Upstream commit 2cee31cd49733e89dfedf4f68a56839fc2e42040 ]
R-Car Gen3 Hardware Manual Errata for Rev. 0.52 of Nov 30, 2016, added
the configuration bit for bias pull-down control for the PRESET# pin on
R-Car M3-W. Add driver support for controlling pull-down on this pin.
Fixes: 2d40bd24274d2577 ("pinctrl: sh-pfc: r8a7796: Add bias pinconf support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/c479de5b3f235c2f7d5faea9e7e08e6fccb135df.1619785375.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pinctrl/renesas/pfc-r8a7796.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/renesas/pfc-r8a7796.c b/drivers/pinctrl/renesas/pfc-r8a7796.c
index 96b5b1509bb7..c4f1f5607601 100644
--- a/drivers/pinctrl/renesas/pfc-r8a7796.c
+++ b/drivers/pinctrl/renesas/pfc-r8a7796.c
@@ -68,6 +68,7 @@
PIN_NOGP_CFG(QSPI1_MOSI_IO0, "QSPI1_MOSI_IO0", fn, CFG_FLAGS), \
PIN_NOGP_CFG(QSPI1_SPCLK, "QSPI1_SPCLK", fn, CFG_FLAGS), \
PIN_NOGP_CFG(QSPI1_SSL, "QSPI1_SSL", fn, CFG_FLAGS), \
+ PIN_NOGP_CFG(PRESET_N, "PRESET#", fn, SH_PFC_PIN_CFG_PULL_DOWN),\
PIN_NOGP_CFG(RPC_INT_N, "RPC_INT#", fn, CFG_FLAGS), \
PIN_NOGP_CFG(RPC_RESET_N, "RPC_RESET#", fn, CFG_FLAGS), \
PIN_NOGP_CFG(RPC_WP_N, "RPC_WP#", fn, CFG_FLAGS), \
@@ -6191,7 +6192,7 @@ static const struct pinmux_bias_reg pinmux_bias_regs[] = {
[ 4] = RCAR_GP_PIN(6, 29), /* USB30_OVC */
[ 5] = RCAR_GP_PIN(6, 30), /* GP6_30 */
[ 6] = RCAR_GP_PIN(6, 31), /* GP6_31 */
- [ 7] = SH_PFC_PIN_NONE,
+ [ 7] = PIN_PRESET_N, /* PRESET# */
[ 8] = SH_PFC_PIN_NONE,
[ 9] = SH_PFC_PIN_NONE,
[10] = SH_PFC_PIN_NONE,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 362/700] pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (360 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 361/700] pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 363/700] RDMA/hns: Remove the condition of light load for posting DWQE Greg Kroah-Hartman
` (343 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Geert Uytterhoeven,
Niklas Söderlund, Sasha Levin
From: Geert Uytterhoeven <geert+renesas@glider.be>
[ Upstream commit 702a5fa2fe4d7e7f28fed92a170b540acfff9d34 ]
Hence remove the SH_PFC_PIN_CFG_PULL_DOWN flags from their pin
descriptions.
Fixes: 83f6941a42a5e773 ("pinctrl: sh-pfc: r8a77990: Add bias pinconf support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/da4b2d69955840a506412f1e8099607a0da97ecc.1619785375.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pinctrl/renesas/pfc-r8a77990.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/pinctrl/renesas/pfc-r8a77990.c b/drivers/pinctrl/renesas/pfc-r8a77990.c
index 0a32e3c317c1..95bcacf1275d 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77990.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77990.c
@@ -54,10 +54,10 @@
PIN_NOGP_CFG(FSCLKST_N, "FSCLKST_N", fn, CFG_FLAGS), \
PIN_NOGP_CFG(MLB_REF, "MLB_REF", fn, CFG_FLAGS), \
PIN_NOGP_CFG(PRESETOUT_N, "PRESETOUT_N", fn, CFG_FLAGS), \
- PIN_NOGP_CFG(TCK, "TCK", fn, CFG_FLAGS), \
- PIN_NOGP_CFG(TDI, "TDI", fn, CFG_FLAGS), \
- PIN_NOGP_CFG(TMS, "TMS", fn, CFG_FLAGS), \
- PIN_NOGP_CFG(TRST_N, "TRST_N", fn, CFG_FLAGS)
+ PIN_NOGP_CFG(TCK, "TCK", fn, SH_PFC_PIN_CFG_PULL_UP), \
+ PIN_NOGP_CFG(TDI, "TDI", fn, SH_PFC_PIN_CFG_PULL_UP), \
+ PIN_NOGP_CFG(TMS, "TMS", fn, SH_PFC_PIN_CFG_PULL_UP), \
+ PIN_NOGP_CFG(TRST_N, "TRST_N", fn, SH_PFC_PIN_CFG_PULL_UP)
/*
* F_() : just information
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 363/700] RDMA/hns: Remove the condition of light load for posting DWQE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (361 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 362/700] pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 364/700] drm/vmwgfx: Mark a surface gpu-dirty after the SVGA3dCmdDXGenMips command Greg Kroah-Hartman
` (342 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yixian Liu, Weihang Li,
Jason Gunthorpe, Sasha Levin
From: Yixian Liu <liuyixian@huawei.com>
[ Upstream commit 591f762b2750c628df9412d1c795b56e83a34b3e ]
Even in the case of heavy load, direct WQE can still be posted. The
hardware will decide whether to drop the DWQE or not. Thus, the limit
needs to be removed.
Fixes: 01584a5edcc4 ("RDMA/hns: Add support of direct wqe")
Link: https://lore.kernel.org/r/1619593950-29414-1-git-send-email-liweihang@huawei.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index ad3cee54140e..3344b80ecf04 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -750,8 +750,7 @@ out:
qp->sq.head += nreq;
qp->next_sge = sge_idx;
- if (nreq == 1 && qp->sq.head == qp->sq.tail + 1 &&
- (qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE))
+ if (nreq == 1 && (qp->en_flags & HNS_ROCE_QP_CAP_DIRECT_WQE))
write_dwqe(hr_dev, qp, wqe);
else
update_sq_db(hr_dev, qp);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 364/700] drm/vmwgfx: Mark a surface gpu-dirty after the SVGA3dCmdDXGenMips command
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (362 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 363/700] RDMA/hns: Remove the condition of light load for posting DWQE Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 365/700] drm/vmwgfx: Fix cpu updates of coherent multisample surfaces Greg Kroah-Hartman
` (341 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thomas Hellstrom, Charmaine Lee,
Roland Scheidegger, Zack Rusin, Sasha Levin
From: Thomas Hellstrom <thellstrom@vmware.com>
[ Upstream commit 75156a887b6cea6e09d83ec19f4ebfd7c86265f0 ]
The SVGA3dCmdDXGenMips command uses a shader-resource view to access
the underlying surface. Normally accesses using that view-type are not
dirtying the underlying surface, but that particular command is an
exception.
Mark the surface gpu-dirty after a SVGA3dCmdDXGenMips command has been
submitted.
This fixes the piglit getteximage-formats test run with
SVGA_FORCE_COHERENT=1
Fixes: a9f58c456e9d ("drm/vmwgfx: Be more restrictive when dirtying resources")
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210505035740.286923-3-zackr@vmware.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 462f17320708..0996c3282ebd 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -2759,12 +2759,24 @@ static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv,
{
VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXGenMips) =
container_of(header, typeof(*cmd), header);
- struct vmw_resource *ret;
+ struct vmw_resource *view;
+ struct vmw_res_cache_entry *rcache;
- ret = vmw_view_id_val_add(sw_context, vmw_view_sr,
- cmd->body.shaderResourceViewId);
+ view = vmw_view_id_val_add(sw_context, vmw_view_sr,
+ cmd->body.shaderResourceViewId);
+ if (IS_ERR(view))
+ return PTR_ERR(view);
- return PTR_ERR_OR_ZERO(ret);
+ /*
+ * Normally the shader-resource view is not gpu-dirtying, but for
+ * this particular command it is...
+ * So mark the last looked-up surface, which is the surface
+ * the view points to, gpu-dirty.
+ */
+ rcache = &sw_context->res_cache[vmw_res_surface];
+ vmw_validation_res_set_dirty(sw_context->ctx, rcache->private,
+ VMW_RES_DIRTY_SET);
+ return 0;
}
/**
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 365/700] drm/vmwgfx: Fix cpu updates of coherent multisample surfaces
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (363 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 364/700] drm/vmwgfx: Mark a surface gpu-dirty after the SVGA3dCmdDXGenMips command Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 366/700] net: qrtr: ns: Fix error return code in qrtr_ns_init() Greg Kroah-Hartman
` (340 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thomas Hellstrom, Charmaine Lee,
Roland Scheidegger, Zack Rusin, Sasha Levin
From: Thomas Hellstrom <thellstrom@vmware.com>
[ Upstream commit 88509f698c4e38e287e016e86a0445547824135c ]
In cases where the dirty linear memory range spans multiple sample sheets
in a surface, the dirty surface region is incorrectly computed.
To do this correctly and in an optimized fashion we would have to compute
the dirty region of each sample sheet and compute the union of those
regions.
But assuming that cpu writing to a multisample surface is rather a corner
case than a common case, just set the dirty region to the full surface.
This fixes OpenGL piglit errors with SVGA_FORCE_COHERENT=1
and the piglit test:
fbo-depthstencil blit default_fb -samples=2 -auto
Fixes: 9ca7d19ff8ba ("drm/vmwgfx: Add surface dirty-tracking callbacks")
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210505035740.286923-4-zackr@vmware.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../drm/vmwgfx/device_include/svga3d_surfacedefs.h | 8 ++++++--
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 13 +++++++++++++
2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h b/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h
index 4db25bd9fa22..127eaf0a0a58 100644
--- a/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h
+++ b/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h
@@ -1467,6 +1467,7 @@ struct svga3dsurface_cache {
/**
* struct svga3dsurface_loc - Surface location
+ * @sheet: The multisample sheet.
* @sub_resource: Surface subresource. Defined as layer * num_mip_levels +
* mip_level.
* @x: X coordinate.
@@ -1474,6 +1475,7 @@ struct svga3dsurface_cache {
* @z: Z coordinate.
*/
struct svga3dsurface_loc {
+ u32 sheet;
u32 sub_resource;
u32 x, y, z;
};
@@ -1566,8 +1568,8 @@ svga3dsurface_get_loc(const struct svga3dsurface_cache *cache,
u32 layer;
int i;
- if (offset >= cache->sheet_bytes)
- offset %= cache->sheet_bytes;
+ loc->sheet = offset / cache->sheet_bytes;
+ offset -= loc->sheet * cache->sheet_bytes;
layer = offset / cache->mip_chain_bytes;
offset -= layer * cache->mip_chain_bytes;
@@ -1631,6 +1633,7 @@ svga3dsurface_min_loc(const struct svga3dsurface_cache *cache,
u32 sub_resource,
struct svga3dsurface_loc *loc)
{
+ loc->sheet = 0;
loc->sub_resource = sub_resource;
loc->x = loc->y = loc->z = 0;
}
@@ -1652,6 +1655,7 @@ svga3dsurface_max_loc(const struct svga3dsurface_cache *cache,
const struct drm_vmw_size *size;
u32 mip;
+ loc->sheet = 0;
loc->sub_resource = sub_resource + 1;
mip = sub_resource % cache->num_mip_levels;
size = &cache->mip[mip].size;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index f6cab77075a0..990523217278 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -1801,6 +1801,19 @@ static void vmw_surface_tex_dirty_range_add(struct vmw_resource *res,
svga3dsurface_get_loc(cache, &loc2, end - 1);
svga3dsurface_inc_loc(cache, &loc2);
+ if (loc1.sheet != loc2.sheet) {
+ u32 sub_res;
+
+ /*
+ * Multiple multisample sheets. To do this in an optimized
+ * fashion, compute the dirty region for each sheet and the
+ * resulting union. Since this is not a common case, just dirty
+ * the whole surface.
+ */
+ for (sub_res = 0; sub_res < dirty->num_subres; ++sub_res)
+ vmw_subres_dirty_full(dirty, sub_res);
+ return;
+ }
if (loc1.sub_resource + 1 == loc2.sub_resource) {
/* Dirty range covers a single sub-resource */
vmw_subres_dirty_add(dirty, &loc1, &loc2);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 366/700] net: qrtr: ns: Fix error return code in qrtr_ns_init()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (364 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 365/700] drm/vmwgfx: Fix cpu updates of coherent multisample surfaces Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 367/700] clk: meson: g12a: fix gp0 and hifi ranges Greg Kroah-Hartman
` (339 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wei Yongjun,
Manivannan Sadhasivam, David S. Miller, Sasha Levin
From: Wei Yongjun <weiyongjun1@huawei.com>
[ Upstream commit a49e72b3bda73d36664a084e47da9727a31b8095 ]
Fix to return a negative error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: c6e08d6251f3 ("net: qrtr: Allocate workqueue before kernel_bind")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/qrtr/ns.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/qrtr/ns.c b/net/qrtr/ns.c
index 8d00dfe8139e..1990d496fcfc 100644
--- a/net/qrtr/ns.c
+++ b/net/qrtr/ns.c
@@ -775,8 +775,10 @@ int qrtr_ns_init(void)
}
qrtr_ns.workqueue = alloc_workqueue("qrtr_ns_handler", WQ_UNBOUND, 1);
- if (!qrtr_ns.workqueue)
+ if (!qrtr_ns.workqueue) {
+ ret = -ENOMEM;
goto err_sock;
+ }
qrtr_ns.sock->sk->sk_data_ready = qrtr_ns_data_ready;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 367/700] clk: meson: g12a: fix gp0 and hifi ranges
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (365 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 366/700] net: qrtr: ns: Fix error return code in qrtr_ns_init() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 368/700] drm/amd/display: fix potential gpu reset deadlock Greg Kroah-Hartman
` (338 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jerome Brunet, Neil Armstrong, Sasha Levin
From: Jerome Brunet <jbrunet@baylibre.com>
[ Upstream commit bc794f8c56abddf709f1f84fcb2a3c9e7d9cc9b4 ]
While some SoC samples are able to lock with a PLL factor of 55, others
samples can't. ATM, a minimum of 60 appears to work on all the samples
I have tried.
Even with 60, it sometimes takes a long time for the PLL to eventually
lock. The documentation says that the minimum rate of these PLLs DCO
should be 3GHz, a factor of 125. Let's use that to be on the safe side.
With factor range changed, the PLL seems to lock quickly (enough) so far.
It is still unclear if the range was the only reason for the delay.
Fixes: 085a4ea93d54 ("clk: meson: g12a: add peripheral clock controller")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20210429090325.60970-1-jbrunet@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/meson/g12a.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/meson/g12a.c b/drivers/clk/meson/g12a.c
index b080359b4645..a805bac93c11 100644
--- a/drivers/clk/meson/g12a.c
+++ b/drivers/clk/meson/g12a.c
@@ -1603,7 +1603,7 @@ static struct clk_regmap g12b_cpub_clk_trace = {
};
static const struct pll_mult_range g12a_gp0_pll_mult_range = {
- .min = 55,
+ .min = 125,
.max = 255,
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 368/700] drm/amd/display: fix potential gpu reset deadlock
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (366 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 367/700] clk: meson: g12a: fix gp0 and hifi ranges Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 369/700] drm/amd/display: Avoid HPD IRQ in GPU reset state Greg Kroah-Hartman
` (337 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lang Yu, Roman Li, Qingqing Zhuo,
Wayne Lin, Daniel Wheeler, Alex Deucher, Sasha Levin
From: Roman Li <Roman.Li@amd.com>
[ Upstream commit cf8b92a75646735136053ce51107bfa8cfc23191 ]
[Why]
In gpu reset dc_lock acquired in dm_suspend().
Asynchronously handle_hpd_rx_irq can also be called
through amdgpu_dm_irq_suspend->flush_work, which also
tries to acquire dc_lock. That causes a deadlock.
[How]
Check if amdgpu executing reset before acquiring dc_lock.
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index eed494630583..d95569e0e53a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2624,13 +2624,15 @@ static void handle_hpd_rx_irq(void *param)
}
}
- mutex_lock(&adev->dm.dc_lock);
+ if (!amdgpu_in_reset(adev))
+ mutex_lock(&adev->dm.dc_lock);
#ifdef CONFIG_DRM_AMD_DC_HDCP
result = dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data, NULL);
#else
result = dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL);
#endif
- mutex_unlock(&adev->dm.dc_lock);
+ if (!amdgpu_in_reset(adev))
+ mutex_unlock(&adev->dm.dc_lock);
out:
if (result && !is_mst_root_connector) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 369/700] drm/amd/display: Avoid HPD IRQ in GPU reset state
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (367 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 368/700] drm/amd/display: fix potential gpu reset deadlock Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 370/700] drm/amd/display: take dc_lock in short pulse handler only Greg Kroah-Hartman
` (336 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhan Liu, Nikola Cornij,
Alex Deucher, Sasha Levin
From: Zhan Liu <zhan.liu@amd.com>
[ Upstream commit 509b9a5b4865dee723296f143695a7774fc96c4a ]
[Why]
If GPU is in reset state, force enabling link will cause
unexpected behaviour.
[How]
Avoid handling HPD IRQ when GPU is in reset state.
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nikola Cornij <nikola.cornij@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d95569e0e53a..61337d4c0bb2 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2624,15 +2624,15 @@ static void handle_hpd_rx_irq(void *param)
}
}
- if (!amdgpu_in_reset(adev))
+ if (!amdgpu_in_reset(adev)) {
mutex_lock(&adev->dm.dc_lock);
#ifdef CONFIG_DRM_AMD_DC_HDCP
result = dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data, NULL);
#else
result = dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL);
#endif
- if (!amdgpu_in_reset(adev))
mutex_unlock(&adev->dm.dc_lock);
+ }
out:
if (result && !is_mst_root_connector) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 370/700] drm/amd/display: take dc_lock in short pulse handler only
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (368 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 369/700] drm/amd/display: Avoid HPD IRQ in GPU reset state Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 371/700] net: ftgmac100: add missing error return code in ftgmac100_probe() Greg Kroah-Hartman
` (335 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Aurabindo Pillai,
Nicholas Kazlauskas, Alex Deucher, Sasha Levin
From: Aurabindo Pillai <aurabindo.pillai@amd.com>
[ Upstream commit d2aa1356834d845ffdac0d8c01b58aa60d1bdc65 ]
[Why]
Conditions that end up modifying the global dc state must be locked.
However, during mst allocate payload sequence, lock is already taken.
With StarTech 1.2 DP hub, we get an HPD RX interrupt for a reason other
than to indicate down reply availability right after sending payload
allocation. The handler again takes dc lock before calling the
dc's HPD RX handler. Due to this contention, the DRM thread which waits
for MST down reply never gets a chance to finish its waiting
successfully and ends up timing out. Once the lock is released, the hpd
rx handler fires and goes ahead to read from the MST HUB, but now its
too late and the HUB doesnt lightup all displays since DRM lacks error
handling when payload allocation fails.
[How]
Take lock only if there is a change in link status or if automated test
pattern bit is set. The latter fixes the null pointer dereference when
running certain DP Link Layer Compliance test.
Fixes: c8ea79a8a276 ("drm/amd/display: NULL pointer error during compliance test")
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 19 +++++++++++++++++--
.../gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +-
.../gpu/drm/amd/display/dc/inc/dc_link_dp.h | 4 ++++
3 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 61337d4c0bb2..0858e0c7b7a1 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -28,6 +28,7 @@
#include "dm_services_types.h"
#include "dc.h"
+#include "dc_link_dp.h"
#include "dc/inc/core_types.h"
#include "dal_asic_id.h"
#include "dmub/dmub_srv.h"
@@ -2598,6 +2599,7 @@ static void handle_hpd_rx_irq(void *param)
enum dc_connection_type new_connection_type = dc_connection_none;
struct amdgpu_device *adev = drm_to_adev(dev);
union hpd_irq_data hpd_irq_data;
+ bool lock_flag = 0;
memset(&hpd_irq_data, 0, sizeof(hpd_irq_data));
@@ -2624,15 +2626,28 @@ static void handle_hpd_rx_irq(void *param)
}
}
- if (!amdgpu_in_reset(adev)) {
+ /*
+ * TODO: We need the lock to avoid touching DC state while it's being
+ * modified during automated compliance testing, or when link loss
+ * happens. While this should be split into subhandlers and proper
+ * interfaces to avoid having to conditionally lock like this in the
+ * outer layer, we need this workaround temporarily to allow MST
+ * lightup in some scenarios to avoid timeout.
+ */
+ if (!amdgpu_in_reset(adev) &&
+ (hpd_rx_irq_check_link_loss_status(dc_link, &hpd_irq_data) ||
+ hpd_irq_data.bytes.device_service_irq.bits.AUTOMATED_TEST)) {
mutex_lock(&adev->dm.dc_lock);
+ lock_flag = 1;
+ }
+
#ifdef CONFIG_DRM_AMD_DC_HDCP
result = dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data, NULL);
#else
result = dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL);
#endif
+ if (!amdgpu_in_reset(adev) && lock_flag)
mutex_unlock(&adev->dm.dc_lock);
- }
out:
if (result && !is_mst_root_connector) {
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index c1391bfb7a9b..b85f67341a9a 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1918,7 +1918,7 @@ enum dc_status read_hpd_rx_irq_data(
return retval;
}
-static bool hpd_rx_irq_check_link_loss_status(
+bool hpd_rx_irq_check_link_loss_status(
struct dc_link *link,
union hpd_irq_data *hpd_irq_dpcd_data)
{
diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
index b970a32177af..28abd30e90a5 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h
@@ -63,6 +63,10 @@ bool perform_link_training_with_retries(
struct pipe_ctx *pipe_ctx,
enum signal_type signal);
+bool hpd_rx_irq_check_link_loss_status(
+ struct dc_link *link,
+ union hpd_irq_data *hpd_irq_dpcd_data);
+
bool is_mst_supported(struct dc_link *link);
bool detect_dp_sink_caps(struct dc_link *link);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 371/700] net: ftgmac100: add missing error return code in ftgmac100_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (369 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 370/700] drm/amd/display: take dc_lock in short pulse handler only Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 372/700] drm/vc4: crtc: Pass the drm_atomic_state to config_pv Greg Kroah-Hartman
` (334 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
David S. Miller, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit 52af13a41489d7bbc1932d17583eff6e5fffc820 ]
The variables will be free on path err_phy_connect, it should
return error code, or it will cause double free when calling
ftgmac100_remove().
Fixes: bd466c3fb5a4 ("net/faraday: Support NCSI mode")
Fixes: 39bfab8844a0 ("net: ftgmac100: Add support for DT phy-handle property")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/faraday/ftgmac100.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 04421aec2dfd..11dbbfd38770 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1830,14 +1830,17 @@ static int ftgmac100_probe(struct platform_device *pdev)
if (np && of_get_property(np, "use-ncsi", NULL)) {
if (!IS_ENABLED(CONFIG_NET_NCSI)) {
dev_err(&pdev->dev, "NCSI stack not enabled\n");
+ err = -EINVAL;
goto err_phy_connect;
}
dev_info(&pdev->dev, "Using NCSI interface\n");
priv->use_ncsi = true;
priv->ndev = ncsi_register_dev(netdev, ftgmac100_ncsi_handler);
- if (!priv->ndev)
+ if (!priv->ndev) {
+ err = -EINVAL;
goto err_phy_connect;
+ }
} else if (np && of_get_property(np, "phy-handle", NULL)) {
struct phy_device *phy;
@@ -1856,6 +1859,7 @@ static int ftgmac100_probe(struct platform_device *pdev)
&ftgmac100_adjust_link);
if (!phy) {
dev_err(&pdev->dev, "Failed to connect to phy\n");
+ err = -EINVAL;
goto err_phy_connect;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 372/700] drm/vc4: crtc: Pass the drm_atomic_state to config_pv
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (370 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 371/700] net: ftgmac100: add missing error return code in ftgmac100_probe() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 373/700] drm/vc4: crtc: Fix vc4_get_crtc_encoder logic Greg Kroah-Hartman
` (333 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Ripard, Dave Stevenson, Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit c6883985d46319e0d4f159de8932b09ff93e877d ]
The vc4_crtc_config_pv will need to access the drm_atomic_state
structure and its only parent function, vc4_crtc_atomic_enable already
has access to it. Let's pass it as a parameter.
Fixes: 792c3132bc1b ("drm/vc4: encoder: Add finer-grained encoder callbacks")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-4-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/vc4/vc4_crtc.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 76657dcdf9b0..d079303cc426 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -305,7 +305,7 @@ static void vc4_crtc_pixelvalve_reset(struct drm_crtc *crtc)
CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_FIFO_CLR);
}
-static void vc4_crtc_config_pv(struct drm_crtc *crtc)
+static void vc4_crtc_config_pv(struct drm_crtc *crtc, struct drm_atomic_state *state)
{
struct drm_device *dev = crtc->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
@@ -313,8 +313,8 @@ static void vc4_crtc_config_pv(struct drm_crtc *crtc)
struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
const struct vc4_pv_data *pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
- struct drm_crtc_state *state = crtc->state;
- struct drm_display_mode *mode = &state->adjusted_mode;
+ struct drm_crtc_state *crtc_state = crtc->state;
+ struct drm_display_mode *mode = &crtc_state->adjusted_mode;
bool interlace = mode->flags & DRM_MODE_FLAG_INTERLACE;
u32 pixel_rep = (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1;
bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 ||
@@ -539,7 +539,7 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
if (vc4_encoder->pre_crtc_configure)
vc4_encoder->pre_crtc_configure(encoder, state);
- vc4_crtc_config_pv(crtc);
+ vc4_crtc_config_pv(crtc, state);
CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 373/700] drm/vc4: crtc: Fix vc4_get_crtc_encoder logic
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (371 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 372/700] drm/vc4: crtc: Pass the drm_atomic_state to config_pv Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 374/700] drm/vc4: crtc: Lookup the encoder from the register at boot Greg Kroah-Hartman
` (332 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Ripard, Dave Stevenson, Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit 5a184d959d5a5a66b377cb5cd4c95a80388e0c88 ]
The vc4_get_crtc_encoder function currently only works when the
connector->state->crtc pointer is set, which is only true when the
connector is currently enabled.
However, we use it as part of the disable path as well, and our lookup
will fail in that case, resulting in it returning a null pointer we
can't act on.
We can access the connector that used to be connected to that crtc
though using the old connector state in the disable path.
Since we want to support both the enable and disable path, we can
support it by passing the state accessor variant as a function pointer,
together with the atomic state.
Fixes: 792c3132bc1b ("drm/vc4: encoder: Add finer-grained encoder callbacks")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-5-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/vc4/vc4_crtc.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index d079303cc426..1733add20498 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -279,14 +279,22 @@ static u32 vc4_crtc_get_fifo_full_level_bits(struct vc4_crtc *vc4_crtc,
* allows drivers to push pixels to more than one encoder from the
* same CRTC.
*/
-static struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc)
+static struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
+ struct drm_atomic_state *state,
+ struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
+ struct drm_connector *connector))
{
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
drm_connector_list_iter_begin(crtc->dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
- if (connector->state->crtc == crtc) {
+ struct drm_connector_state *conn_state = get_state(state, connector);
+
+ if (!conn_state)
+ continue;
+
+ if (conn_state->crtc == crtc) {
drm_connector_list_iter_end(&conn_iter);
return connector->encoder;
}
@@ -309,7 +317,8 @@ static void vc4_crtc_config_pv(struct drm_crtc *crtc, struct drm_atomic_state *s
{
struct drm_device *dev = crtc->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
- struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+ drm_atomic_get_new_connector_state);
struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
const struct vc4_pv_data *pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
@@ -424,7 +433,8 @@ static int vc4_crtc_disable(struct drm_crtc *crtc,
struct drm_atomic_state *state,
unsigned int channel)
{
- struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+ drm_atomic_get_old_connector_state);
struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
struct drm_device *dev = crtc->dev;
@@ -524,7 +534,8 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
{
struct drm_device *dev = crtc->dev;
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
- struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+ drm_atomic_get_new_connector_state);
struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
require_hvs_enabled(dev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 374/700] drm/vc4: crtc: Lookup the encoder from the register at boot
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (372 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 373/700] drm/vc4: crtc: Fix vc4_get_crtc_encoder logic Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 375/700] drm: rockchip: set alpha_en to 0 if it is not used Greg Kroah-Hartman
` (331 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Ripard, Dave Stevenson, Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit b601c16b7ba8f3bb7a7e773b238da6b63657fa1d ]
At boot, we can't rely on the vc4_get_crtc_encoder since we don't have a
state yet and thus will not be able to figure out which connector is
attached to our CRTC.
However, we have a muxing bit in the CRTC register we can use to get the
encoder currently connected to the pixelvalve. We can thus read that
register, lookup the associated register through the vc4_pv_data
structure, and then pass it to vc4_crtc_disable so that we can perform
the proper operations.
Fixes: 875a4d536842 ("drm/vc4: drv: Disable the CRTC at boot time")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-6-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/vc4/vc4_crtc.c | 38 ++++++++++++++++++++++++++++++----
1 file changed, 34 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 1733add20498..1f36b67cd6ce 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -430,11 +430,10 @@ static void require_hvs_enabled(struct drm_device *dev)
}
static int vc4_crtc_disable(struct drm_crtc *crtc,
+ struct drm_encoder *encoder,
struct drm_atomic_state *state,
unsigned int channel)
{
- struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
- drm_atomic_get_old_connector_state);
struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
struct drm_device *dev = crtc->dev;
@@ -475,10 +474,29 @@ static int vc4_crtc_disable(struct drm_crtc *crtc,
return 0;
}
+static struct drm_encoder *vc4_crtc_get_encoder_by_type(struct drm_crtc *crtc,
+ enum vc4_encoder_type type)
+{
+ struct drm_encoder *encoder;
+
+ drm_for_each_encoder(encoder, crtc->dev) {
+ struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+
+ if (vc4_encoder->type == type)
+ return encoder;
+ }
+
+ return NULL;
+}
+
int vc4_crtc_disable_at_boot(struct drm_crtc *crtc)
{
struct drm_device *drm = crtc->dev;
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ enum vc4_encoder_type encoder_type;
+ const struct vc4_pv_data *pv_data;
+ struct drm_encoder *encoder;
+ unsigned encoder_sel;
int channel;
if (!(of_device_is_compatible(vc4_crtc->pdev->dev.of_node,
@@ -497,7 +515,17 @@ int vc4_crtc_disable_at_boot(struct drm_crtc *crtc)
if (channel < 0)
return 0;
- return vc4_crtc_disable(crtc, NULL, channel);
+ encoder_sel = VC4_GET_FIELD(CRTC_READ(PV_CONTROL), PV_CONTROL_CLK_SELECT);
+ if (WARN_ON(encoder_sel != 0))
+ return 0;
+
+ pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
+ encoder_type = pv_data->encoder_types[encoder_sel];
+ encoder = vc4_crtc_get_encoder_by_type(crtc, encoder_type);
+ if (WARN_ON(!encoder))
+ return 0;
+
+ return vc4_crtc_disable(crtc, encoder, NULL, channel);
}
static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
@@ -506,6 +534,8 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
crtc);
struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state);
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+ drm_atomic_get_old_connector_state);
struct drm_device *dev = crtc->dev;
require_hvs_enabled(dev);
@@ -513,7 +543,7 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
/* Disable vblank irq handling before crtc is disabled. */
drm_crtc_vblank_off(crtc);
- vc4_crtc_disable(crtc, state, old_vc4_state->assigned_channel);
+ vc4_crtc_disable(crtc, encoder, state, old_vc4_state->assigned_channel);
/*
* Make sure we issue a vblank event after disabling the CRTC if
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 375/700] drm: rockchip: set alpha_en to 0 if it is not used
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (373 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 374/700] drm/vc4: crtc: Lookup the encoder from the register at boot Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 376/700] drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() Greg Kroah-Hartman
` (330 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alex Bee, Heiko Stuebner, Sasha Levin
From: Alex Bee <knaerzche@gmail.com>
[ Upstream commit 046e0db975695540c9d9898cdbf0b60533d28afb ]
alpha_en should be set to 0 if it is not used, i.e. to disable alpha
blending if it was enabled before and should be disabled now.
Fixes: 2aae8ed1f390 ("drm/rockchip: Add per-pixel alpha support for the PX30 VOP")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210528130554.72191-6-knaerzche@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 8d15cabdcb02..2d10198044c2 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1013,6 +1013,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
VOP_WIN_SET(vop, win, alpha_en, 1);
} else {
VOP_WIN_SET(vop, win, src_alpha_ctl, SRC_ALPHA_EN(0));
+ VOP_WIN_SET(vop, win, alpha_en, 0);
}
VOP_WIN_SET(vop, win, enable, 1);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 376/700] drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (374 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 375/700] drm: rockchip: set alpha_en to 0 if it is not used Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 377/700] drm/rockchip: dsi: move all lane config except LCDC mux to bind() Greg Kroah-Hartman
` (329 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
Heiko Stuebner, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit ae41d925c75b53798f289c69ee8d9f7d36432f6d ]
After calling clk_prepare_enable(), clk_disable_unprepare() need
be called when calling regmap_write() failed.
Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210519134928.2696617-1-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/rockchip/cdn-dp-core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index a4a45daf93f2..6802d9b65f82 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -73,6 +73,7 @@ static int cdn_dp_grf_write(struct cdn_dp_device *dp,
ret = regmap_write(dp->grf, reg, val);
if (ret) {
DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);
+ clk_disable_unprepare(dp->grf_clk);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 377/700] drm/rockchip: dsi: move all lane config except LCDC mux to bind()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (375 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 376/700] drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 378/700] drm/rockchip: lvds: Fix an error handling path Greg Kroah-Hartman
` (328 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thomas Hebb, Jonathan Liu,
Heiko Stuebner, Sasha Levin
From: Thomas Hebb <tommyhebb@gmail.com>
[ Upstream commit 43c2de1002d2b70fb5941fa14e97a34e3dc214d4 ]
When we first enable the DSI encoder, we currently program some per-chip
configuration that we look up in rk3399_chip_data based on the device
tree compatible we match. This data configures various parameters of the
MIPI lanes, including on RK3399 whether DSI1 is slaved to DSI0 in a
dual-mode configuration. It also selects which LCDC (i.e. VOP) to scan
out from.
This causes a problem in RK3399 dual-mode configurations, though: panel
prepare() callbacks run before the encoder gets enabled and expect to be
able to write commands to the DSI bus, but the bus isn't fully
functional until the lane and master/slave configuration have been
programmed. As a result, dual-mode panels (and possibly others too) fail
to turn on when the rockchipdrm driver is initially loaded.
Because the LCDC mux is the only thing we don't know until enable time
(and is the only thing that can ever change), we can actually move most
of the initialization to bind() and get it out of the way early. That's
what this change does. (Rockchip's 4.4 BSP kernel does it in mode_set(),
which also avoids the issue, but bind() seems like the more correct
place to me.)
Tested on a Google Scarlet board (Acer Chromebook Tab 10), which has a
Kingdisplay KD097D04 dual-mode panel. Prior to this change, the panel's
backlight would turn on but no image would appear when initially loading
rockchipdrm. If I kept rockchipdrm loaded and reloaded the panel driver,
it would come on. With this change, the panel successfully turns on
during initial rockchipdrm load as expected.
Fixes: 2d4f7bdafd70 ("drm/rockchip: dsi: migrate to use dw-mipi-dsi bridge driver")
Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Tested-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/55fe7f3454d8c91dc3837ba5aa741d4a0e67378f.1618797813.git.tommyhebb@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 36 ++++++++++++++-----
1 file changed, 28 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 24a71091759c..d8c47ee3cad3 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -692,13 +692,8 @@ static const struct dw_mipi_dsi_phy_ops dw_mipi_dsi_rockchip_phy_ops = {
.get_timing = dw_mipi_dsi_phy_get_timing,
};
-static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi,
- int mux)
+static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi)
{
- if (dsi->cdata->lcdsel_grf_reg)
- regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
- mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
-
if (dsi->cdata->lanecfg1_grf_reg)
regmap_write(dsi->grf_regmap, dsi->cdata->lanecfg1_grf_reg,
dsi->cdata->lanecfg1);
@@ -712,6 +707,13 @@ static void dw_mipi_dsi_rockchip_config(struct dw_mipi_dsi_rockchip *dsi,
dsi->cdata->enable);
}
+static void dw_mipi_dsi_rockchip_set_lcdsel(struct dw_mipi_dsi_rockchip *dsi,
+ int mux)
+{
+ regmap_write(dsi->grf_regmap, dsi->cdata->lcdsel_grf_reg,
+ mux ? dsi->cdata->lcdsel_lit : dsi->cdata->lcdsel_big);
+}
+
static int
dw_mipi_dsi_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
@@ -767,9 +769,9 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
return;
}
- dw_mipi_dsi_rockchip_config(dsi, mux);
+ dw_mipi_dsi_rockchip_set_lcdsel(dsi, mux);
if (dsi->slave)
- dw_mipi_dsi_rockchip_config(dsi->slave, mux);
+ dw_mipi_dsi_rockchip_set_lcdsel(dsi->slave, mux);
clk_disable_unprepare(dsi->grf_clk);
}
@@ -923,6 +925,24 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
return ret;
}
+ /*
+ * With the GRF clock running, write lane and dual-mode configurations
+ * that won't change immediately. If we waited until enable() to do
+ * this, things like panel preparation would not be able to send
+ * commands over DSI.
+ */
+ ret = clk_prepare_enable(dsi->grf_clk);
+ if (ret) {
+ DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+ return ret;
+ }
+
+ dw_mipi_dsi_rockchip_config(dsi);
+ if (dsi->slave)
+ dw_mipi_dsi_rockchip_config(dsi->slave);
+
+ clk_disable_unprepare(dsi->grf_clk);
+
ret = rockchip_dsi_drm_create_encoder(dsi, drm_dev);
if (ret) {
DRM_DEV_ERROR(dev, "Failed to create drm encoder\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 378/700] drm/rockchip: lvds: Fix an error handling path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (376 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 377/700] drm/rockchip: dsi: move all lane config except LCDC mux to bind() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 379/700] drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result Greg Kroah-Hartman
` (327 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Heiko Stuebner,
Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 3dfa159f6b0c054eb63673fbf643a5f2cc862e63 ]
'ret' is know to be 0 a this point. Checking the return value of
'phy_init()' and 'phy_set_mode()' was intended instead.
So add the missing assignments.
Fixes: cca1705c3d89 ("drm/rockchip: lvds: Add PX30 support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/248220d4815dc8c8088cebfab7d6df5f70518438.1619881852.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/rockchip/rockchip_lvds.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c
index 654bc52d9ff3..1a7f24c1ce49 100644
--- a/drivers/gpu/drm/rockchip/rockchip_lvds.c
+++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c
@@ -499,11 +499,11 @@ static int px30_lvds_probe(struct platform_device *pdev,
if (IS_ERR(lvds->dphy))
return PTR_ERR(lvds->dphy);
- phy_init(lvds->dphy);
+ ret = phy_init(lvds->dphy);
if (ret)
return ret;
- phy_set_mode(lvds->dphy, PHY_MODE_LVDS);
+ ret = phy_set_mode(lvds->dphy, PHY_MODE_LVDS);
if (ret)
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 379/700] drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (377 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 378/700] drm/rockchip: lvds: Fix an error handling path Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 380/700] mptcp: fix pr_debug in mptcp_token_new_connect Greg Kroah-Hartman
` (326 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Colin Ian King, Guenter Roeck,
Heiko Stuebner, Sasha Levin
From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit ce0cb93a5adb283f577cd4661f511047b5e39028 ]
The variable bit_per_pix is a u8 and is promoted in the multiplication
to an int type and then sign extended to a u64. If the result of the
int multiplication is greater than 0x7fffffff then the upper 32 bits will
be set to 1 as a result of the sign extension. Avoid this by casting
tu_size_reg to u64 to avoid sign extension and also a potential overflow.
Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200915162049.36434-1-colin.king@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/rockchip/cdn-dp-reg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c
index 9d2163ef4d6e..33fb4d05c506 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-reg.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c
@@ -658,7 +658,7 @@ int cdn_dp_config_video(struct cdn_dp_device *dp)
*/
do {
tu_size_reg += 2;
- symbol = tu_size_reg * mode->clock * bit_per_pix;
+ symbol = (u64)tu_size_reg * mode->clock * bit_per_pix;
do_div(symbol, dp->max_lanes * link_rate * 8);
rem = do_div(symbol, 1000);
if (tu_size_reg > 64) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 380/700] mptcp: fix pr_debug in mptcp_token_new_connect
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (378 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 379/700] drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 381/700] mptcp: generate subflow hmac after mptcp_finish_join() Greg Kroah-Hartman
` (325 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Paolo Abeni, Jianguo Wu,
Mat Martineau, Jakub Kicinski, Sasha Levin
From: Jianguo Wu <wujianguo@chinatelecom.cn>
[ Upstream commit 2f1af441fd5dd5caf0807bb19ce9bbf9325ce534 ]
After commit 2c5ebd001d4f ("mptcp: refactor token container"),
pr_debug() is called before mptcp_crypto_key_gen_sha() in
mptcp_token_new_connect(), so the output local_key, token and
idsn are 0, like:
MPTCP: ssk=00000000f6b3c4a2, local_key=0, token=0, idsn=0
Move pr_debug() after mptcp_crypto_key_gen_sha().
Fixes: 2c5ebd001d4f ("mptcp: refactor token container")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mptcp/token.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/mptcp/token.c b/net/mptcp/token.c
index feb4b9ffd462..0691a4883f3a 100644
--- a/net/mptcp/token.c
+++ b/net/mptcp/token.c
@@ -156,9 +156,6 @@ int mptcp_token_new_connect(struct sock *sk)
int retries = TOKEN_MAX_RETRIES;
struct token_bucket *bucket;
- pr_debug("ssk=%p, local_key=%llu, token=%u, idsn=%llu\n",
- sk, subflow->local_key, subflow->token, subflow->idsn);
-
again:
mptcp_crypto_key_gen_sha(&subflow->local_key, &subflow->token,
&subflow->idsn);
@@ -172,6 +169,9 @@ again:
goto again;
}
+ pr_debug("ssk=%p, local_key=%llu, token=%u, idsn=%llu\n",
+ sk, subflow->local_key, subflow->token, subflow->idsn);
+
WRITE_ONCE(msk->token, subflow->token);
__sk_nulls_add_node_rcu((struct sock *)msk, &bucket->msk_chain);
bucket->chain_len++;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 381/700] mptcp: generate subflow hmac after mptcp_finish_join()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (379 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 380/700] mptcp: fix pr_debug in mptcp_token_new_connect Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 382/700] RDMA/srp: Fix a recently introduced memory leak Greg Kroah-Hartman
` (324 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jianguo Wu, Mat Martineau,
Jakub Kicinski, Sasha Levin
From: Jianguo Wu <wujianguo@chinatelecom.cn>
[ Upstream commit 0a4d8e96e4fd687af92b961d5cdcea0fdbde05fe ]
For outgoing subflow join, when recv SYNACK, in subflow_finish_connect(),
the mptcp_finish_join() may return false in some cases, and send a RESET
to remote, and no local hmac is required.
So generate subflow hmac after mptcp_finish_join().
Fixes: ec3edaa7ca6c ("mptcp: Add handling of outgoing MP_JOIN requests")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mptcp/subflow.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index d6d8ad4f918e..189139b8d401 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -409,15 +409,15 @@ static void subflow_finish_connect(struct sock *sk, const struct sk_buff *skb)
goto do_reset;
}
+ if (!mptcp_finish_join(sk))
+ goto do_reset;
+
subflow_generate_hmac(subflow->local_key, subflow->remote_key,
subflow->local_nonce,
subflow->remote_nonce,
hmac);
memcpy(subflow->hmac, hmac, MPTCPOPT_HMAC_LEN);
- if (!mptcp_finish_join(sk))
- goto do_reset;
-
subflow->mp_join = 1;
MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_JOINSYNACKRX);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 382/700] RDMA/srp: Fix a recently introduced memory leak
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (380 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 381/700] mptcp: generate subflow hmac after mptcp_finish_join() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 383/700] RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats Greg Kroah-Hartman
` (323 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Max Gurtovoy, Bart Van Assche,
Jason Gunthorpe, Sasha Levin
From: Bart Van Assche <bvanassche@acm.org>
[ Upstream commit 7ec2e27a3afff64c96bfe7a77685c33619db84be ]
Only allocate a memory registration list if it will be used and if it will
be freed.
Link: https://lore.kernel.org/r/20210524041211.9480-5-bvanassche@acm.org
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Fixes: f273ad4f8d90 ("RDMA/srp: Remove support for FMR memory registration")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/srp/ib_srp.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 31f8aa2c40ed..168705c88e2f 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -998,7 +998,6 @@ static int srp_alloc_req_data(struct srp_rdma_ch *ch)
struct srp_device *srp_dev = target->srp_host->srp_dev;
struct ib_device *ibdev = srp_dev->dev;
struct srp_request *req;
- void *mr_list;
dma_addr_t dma_addr;
int i, ret = -ENOMEM;
@@ -1009,12 +1008,12 @@ static int srp_alloc_req_data(struct srp_rdma_ch *ch)
for (i = 0; i < target->req_ring_size; ++i) {
req = &ch->req_ring[i];
- mr_list = kmalloc_array(target->mr_per_cmd, sizeof(void *),
- GFP_KERNEL);
- if (!mr_list)
- goto out;
- if (srp_dev->use_fast_reg)
- req->fr_list = mr_list;
+ if (srp_dev->use_fast_reg) {
+ req->fr_list = kmalloc_array(target->mr_per_cmd,
+ sizeof(void *), GFP_KERNEL);
+ if (!req->fr_list)
+ goto out;
+ }
req->indirect_desc = kmalloc(target->indirect_size, GFP_KERNEL);
if (!req->indirect_desc)
goto out;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 383/700] RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (381 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 382/700] RDMA/srp: Fix a recently introduced memory leak Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 384/700] RDMA/rtrs: Do not reset hb_missed_max after re-connection Greg Kroah-Hartman
` (322 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Md Haris Iqbal, Gioh Kim,
Jason Gunthorpe, Sasha Levin
From: Md Haris Iqbal <haris.iqbal@cloud.ionos.com>
[ Upstream commit 41db63a7efe1c8c2dd282c1849a6ebfbbedbaf67 ]
When get_next_path_min_inflight is called to select the next path, it
iterates over the list of available rtrs_clt_sess (paths). It then reads
the number of inflight IOs for that path to select one which has the least
inflight IO.
But it may so happen that rtrs_clt_sess (path) is no longer in the
connected state because closing or error recovery paths can change the status
of the rtrs_clt_Sess.
For example, the client sent the heart-beat and did not get the
response, it would change the session status and stop IO processing.
The added checking of this patch can prevent accessing the broken path
and generating duplicated error messages.
It is ok if the status is changed after checking the status because
the error recovery path does not free memory and only tries to
reconnection. And also it is ok if the session is closed after checking
the status because closing the session changes the session status and
flush all IO beforing free memory. If the session is being accessed for
IO processing, the closing session will wait.
Fixes: 6a98d71daea18 ("RDMA/rtrs: client: main functionality")
Link: https://lore.kernel.org/r/20210528113018.52290-13-jinpu.wang@ionos.com
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 959ba0462ef0..cb6f5c7610a0 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -805,6 +805,9 @@ static struct rtrs_clt_sess *get_next_path_min_inflight(struct path_it *it)
int inflight;
list_for_each_entry_rcu(sess, &clt->paths_list, s.entry) {
+ if (unlikely(READ_ONCE(sess->state) != RTRS_CLT_CONNECTED))
+ continue;
+
if (unlikely(!list_empty(raw_cpu_ptr(sess->mp_skip_entry))))
continue;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 384/700] RDMA/rtrs: Do not reset hb_missed_max after re-connection
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (382 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 383/700] RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 385/700] RDMA/rtrs-srv: Fix memory leak of unfreed rtrs_srv_stats object Greg Kroah-Hartman
` (321 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Gioh Kim, Jack Wang, Jason Gunthorpe,
Sasha Levin
From: Gioh Kim <gi-oh.kim@cloud.ionos.com>
[ Upstream commit 64bce1ee978491a779eb31098b21c57d4e431d6a ]
When re-connecting, it resets hb_missed_max to 0.
Before the first re-connecting, client will trigger re-connection
when it gets hb-ack more than 5 times. But after the first
re-connecting, clients will do re-connection whenever it does
not get hb-ack because hb_missed_max is 0.
There is no need to reset hb_missed_max when re-connecting.
hb_missed_max should be kept until closing the session.
Fixes: c0894b3ea69d3 ("RDMA/rtrs: core: lib functions shared between client and server modules")
Link: https://lore.kernel.org/r/20210528113018.52290-16-jinpu.wang@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c
index d13aff0aa816..4629bb758126 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs.c
@@ -373,7 +373,6 @@ void rtrs_stop_hb(struct rtrs_sess *sess)
{
cancel_delayed_work_sync(&sess->hb_dwork);
sess->hb_missed_cnt = 0;
- sess->hb_missed_max = 0;
}
EXPORT_SYMBOL_GPL(rtrs_stop_hb);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 385/700] RDMA/rtrs-srv: Fix memory leak of unfreed rtrs_srv_stats object
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (383 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 384/700] RDMA/rtrs: Do not reset hb_missed_max after re-connection Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 386/700] RDMA/rtrs-srv: Fix memory leak when having multiple sessions Greg Kroah-Hartman
` (320 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Gioh Kim, Md Haris Iqbal, Jack Wang,
Jason Gunthorpe, Sasha Levin
From: Gioh Kim <gi-oh.kim@cloud.ionos.com>
[ Upstream commit 2371c40354509746e4a4dad09a752e027a30f148 ]
When closing a session, currently the rtrs_srv_stats object in the
closing session is freed by kobject release. But if it failed
to create a session by various reasons, it must free the rtrs_srv_stats
object directly because kobject is not created yet.
This problem is found by kmemleak as below:
1. One client machine maps /dev/nullb0 with session name 'bla':
root@test1:~# echo "sessname=bla path=ip:192.168.122.190 \
device_path=/dev/nullb0" > /sys/devices/virtual/rnbd-client/ctl/map_device
2. Another machine failed to create a session with the same name 'bla':
root@test2:~# echo "sessname=bla path=ip:192.168.122.190 \
device_path=/dev/nullb1" > /sys/devices/virtual/rnbd-client/ctl/map_device
-bash: echo: write error: Connection reset by peer
3. The kmemleak on server machine reported an error:
unreferenced object 0xffff888033cdc800 (size 128):
comm "kworker/2:1", pid 83, jiffies 4295086585 (age 2508.680s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000a72903b2>] __alloc_sess+0x1d4/0x1250 [rtrs_server]
[<00000000d1e5321e>] rtrs_srv_rdma_cm_handler+0xc31/0xde0 [rtrs_server]
[<00000000bb2f6e7e>] cma_ib_req_handler+0xdc5/0x2b50 [rdma_cm]
[<00000000e896235d>] cm_process_work+0x2d/0x100 [ib_cm]
[<00000000b6866c5f>] cm_req_handler+0x11bc/0x1c40 [ib_cm]
[<000000005f5dd9aa>] cm_work_handler+0xe65/0x3cf2 [ib_cm]
[<00000000610151e7>] process_one_work+0x4bc/0x980
[<00000000541e0f77>] worker_thread+0x78/0x5c0
[<00000000423898ca>] kthread+0x191/0x1e0
[<000000005a24b239>] ret_from_fork+0x3a/0x50
Fixes: 39c2d639ca183 ("RDMA/rtrs-srv: Set .release function for rtrs srv device during device init")
Link: https://lore.kernel.org/r/20210528113018.52290-18-jinpu.wang@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index d071809e3ed2..8c0acfc48392 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -1477,6 +1477,7 @@ static void free_sess(struct rtrs_srv_sess *sess)
kobject_del(&sess->kobj);
kobject_put(&sess->kobj);
} else {
+ kfree(sess->stats);
kfree(sess);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 386/700] RDMA/rtrs-srv: Fix memory leak when having multiple sessions
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (384 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 385/700] RDMA/rtrs-srv: Fix memory leak of unfreed rtrs_srv_stats object Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 387/700] RDMA/rtrs-clt: Check if the queue_depth has changed during a reconnection Greg Kroah-Hartman
` (319 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Gioh Kim, Jack Wang, Jason Gunthorpe,
Sasha Levin
From: Jack Wang <jinpu.wang@cloud.ionos.com>
[ Upstream commit 6bb97a2c1aa5278a30d49abb6186d50c34c207e2 ]
Gioh notice memory leak below
unreferenced object 0xffff8880acda2000 (size 2048):
comm "kworker/4:1", pid 77, jiffies 4295062871 (age 1270.730s)
hex dump (first 32 bytes):
00 20 da ac 80 88 ff ff 00 20 da ac 80 88 ff ff . ....... ......
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000e85d85b5>] rtrs_srv_rdma_cm_handler+0x8e5/0xa90 [rtrs_server]
[<00000000e31a988a>] cma_ib_req_handler+0xdc5/0x2b50 [rdma_cm]
[<000000000eb02c5b>] cm_process_work+0x2d/0x100 [ib_cm]
[<00000000e1650ca9>] cm_req_handler+0x11bc/0x1c40 [ib_cm]
[<000000009c28818b>] cm_work_handler+0xe65/0x3cf2 [ib_cm]
[<000000002b53eaa1>] process_one_work+0x4bc/0x980
[<00000000da3499fb>] worker_thread+0x78/0x5c0
[<00000000167127a4>] kthread+0x191/0x1e0
[<0000000060802104>] ret_from_fork+0x3a/0x50
unreferenced object 0xffff88806d595d90 (size 8):
comm "kworker/4:1H", pid 131, jiffies 4295062972 (age 1269.720s)
hex dump (first 8 bytes):
62 6c 61 00 6b 6b 6b a5 bla.kkk.
backtrace:
[<000000004447d253>] kstrdup+0x2e/0x60
[<0000000047259793>] kobject_set_name_vargs+0x2f/0xb0
[<00000000c2ee3bc8>] dev_set_name+0xab/0xe0
[<000000002b6bdfb1>] rtrs_srv_create_sess_files+0x260/0x290 [rtrs_server]
[<0000000075d87bd7>] rtrs_srv_info_req_done+0x71b/0x960 [rtrs_server]
[<00000000ccdf1bb5>] __ib_process_cq+0x94/0x100 [ib_core]
[<00000000cbcb60cb>] ib_cq_poll_work+0x32/0xc0 [ib_core]
[<000000002b53eaa1>] process_one_work+0x4bc/0x980
[<00000000da3499fb>] worker_thread+0x78/0x5c0
[<00000000167127a4>] kthread+0x191/0x1e0
[<0000000060802104>] ret_from_fork+0x3a/0x50
unreferenced object 0xffff88806d6bb100 (size 256):
comm "kworker/4:1H", pid 131, jiffies 4295062972 (age 1269.720s)
hex dump (first 32 bytes):
00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N..........
ff ff ff ff ff ff ff ff 00 59 4d 86 ff ff ff ff .........YM.....
backtrace:
[<00000000a18a11e4>] device_add+0x74d/0xa00
[<00000000a915b95f>] rtrs_srv_create_sess_files.cold+0x49/0x1fe [rtrs_server]
[<0000000075d87bd7>] rtrs_srv_info_req_done+0x71b/0x960 [rtrs_server]
[<00000000ccdf1bb5>] __ib_process_cq+0x94/0x100 [ib_core]
[<00000000cbcb60cb>] ib_cq_poll_work+0x32/0xc0 [ib_core]
[<000000002b53eaa1>] process_one_work+0x4bc/0x980
[<00000000da3499fb>] worker_thread+0x78/0x5c0
[<00000000167127a4>] kthread+0x191/0x1e0
[<0000000060802104>] ret_from_fork+0x3a/0x50
The problem is we increase device refcount by get_device in process_info_req
for each path, but only does put_deice for last path, which lead to
memory leak.
To fix it, it also calls put_device when dev_ref is not 0.
Fixes: e2853c49477d1 ("RDMA/rtrs-srv-sysfs: fix missing put_device")
Link: https://lore.kernel.org/r/20210528113018.52290-19-jinpu.wang@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index 126a96e75c62..e499f64ae608 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -211,6 +211,7 @@ rtrs_srv_destroy_once_sysfs_root_folders(struct rtrs_srv_sess *sess)
device_del(&srv->dev);
put_device(&srv->dev);
} else {
+ put_device(&srv->dev);
mutex_unlock(&srv->paths_mutex);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 387/700] RDMA/rtrs-clt: Check if the queue_depth has changed during a reconnection
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (385 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 386/700] RDMA/rtrs-srv: Fix memory leak when having multiple sessions Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 388/700] RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats Greg Kroah-Hartman
` (318 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Md Haris Iqbal, Gioh Kim, Jack Wang,
Jason Gunthorpe, Sasha Levin
From: Md Haris Iqbal <haris.iqbal@cloud.ionos.com>
[ Upstream commit 5b73b799c25c68a4703cd6c5ac4518006d9865b8 ]
The queue_depth is a module parameter for rtrs_server. It is used on the
client side to determing the queue_depth of the request queue for the RNBD
virtual block device.
During a reconnection event for an already mapped device, in case the
rtrs_server module queue_depth has changed, fail the reconnect attempt.
Also stop further auto reconnection attempts. A manual reconnect via
sysfs has to be triggerred.
Fixes: 6a98d71daea18 ("RDMA/rtrs: client: main functionality")
Link: https://lore.kernel.org/r/20210528113018.52290-20-jinpu.wang@ionos.com
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index cb6f5c7610a0..1c581c4faacd 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -1716,7 +1716,19 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
queue_depth);
return -ECONNRESET;
}
- if (!sess->rbufs || sess->queue_depth < queue_depth) {
+ if (sess->queue_depth > 0 && queue_depth != sess->queue_depth) {
+ rtrs_err(clt, "Error: queue depth changed\n");
+
+ /*
+ * Stop any more reconnection attempts
+ */
+ sess->reconnect_attempts = -1;
+ rtrs_err(clt,
+ "Disabling auto-reconnect. Trigger a manual reconnect after issue is resolved\n");
+ return -ECONNRESET;
+ }
+
+ if (!sess->rbufs) {
kfree(sess->rbufs);
sess->rbufs = kcalloc(queue_depth, sizeof(*sess->rbufs),
GFP_KERNEL);
@@ -1730,7 +1742,7 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
sess->chunk_size = sess->max_io_size + sess->max_hdr_size;
/*
- * Global queue depth and IO size is always a minimum.
+ * Global IO size is always a minimum.
* If while a reconnection server sends us a value a bit
* higher - client does not care and uses cached minimum.
*
@@ -1738,8 +1750,7 @@ static int rtrs_rdma_conn_established(struct rtrs_clt_con *con,
* connections in parallel, use lock.
*/
mutex_lock(&clt->paths_mutex);
- clt->queue_depth = min_not_zero(sess->queue_depth,
- clt->queue_depth);
+ clt->queue_depth = sess->queue_depth;
clt->max_io_size = min_not_zero(sess->max_io_size,
clt->max_io_size);
mutex_unlock(&clt->paths_mutex);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 388/700] RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (386 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 387/700] RDMA/rtrs-clt: Check if the queue_depth has changed during a reconnection Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 389/700] ehea: fix error return code in ehea_restart_qps() Greg Kroah-Hartman
` (317 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Gioh Kim, Jack Wang, Jason Gunthorpe,
Sasha Levin
From: Gioh Kim <gi-oh.kim@cloud.ionos.com>
[ Upstream commit 7ecd7e290bee0ab9cf75b79a367a4cc113cf8292 ]
sess->stats and sess->stats->pcpu_stats objects are freed
when sysfs entry is removed. If something wrong happens and
session is closed before sysfs entry is created,
sess->stats and sess->stats->pcpu_stats objects are not freed.
This patch adds freeing of them at three places:
1. When client uses wrong address and session creation fails.
2. When client fails to create a sysfs entry.
3. When client adds wrong address via sysfs add_path.
Fixes: 215378b838df0 ("RDMA/rtrs: client: sysfs interface functions")
Link: https://lore.kernel.org/r/20210528113018.52290-21-jinpu.wang@ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs-clt.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 1c581c4faacd..49d12dd4a503 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -2689,6 +2689,8 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
if (err) {
list_del_rcu(&sess->s.entry);
rtrs_clt_close_conns(sess, true);
+ free_percpu(sess->stats->pcpu_stats);
+ kfree(sess->stats);
free_sess(sess);
goto close_all_sess;
}
@@ -2697,6 +2699,8 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
if (err) {
list_del_rcu(&sess->s.entry);
rtrs_clt_close_conns(sess, true);
+ free_percpu(sess->stats->pcpu_stats);
+ kfree(sess->stats);
free_sess(sess);
goto close_all_sess;
}
@@ -2954,6 +2958,8 @@ int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
close_sess:
rtrs_clt_remove_path_from_arr(sess);
rtrs_clt_close_conns(sess, true);
+ free_percpu(sess->stats->pcpu_stats);
+ kfree(sess->stats);
free_sess(sess);
return err;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 389/700] ehea: fix error return code in ehea_restart_qps()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (387 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 388/700] RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 390/700] clk: tegra30: Use 300MHz for video decoder by default Greg Kroah-Hartman
` (316 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei, Jakub Kicinski,
Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit 015dbf5662fd689d581c0bc980711b073ca09a1a ]
Fix to return -EFAULT from the error handling case instead of 0, as done
elsewhere in this function.
By the way, when get_zeroed_page() fails, directly return -ENOMEM to
simplify code.
Fixes: 2c69448bbced ("ehea: DLPAR memory add fix")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210528085555.9390-1-thunder.leizhen@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ehea/ehea_main.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index c2e740475786..f63066736425 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -2617,10 +2617,8 @@ static int ehea_restart_qps(struct net_device *dev)
u16 dummy16 = 0;
cb0 = (void *)get_zeroed_page(GFP_KERNEL);
- if (!cb0) {
- ret = -ENOMEM;
- goto out;
- }
+ if (!cb0)
+ return -ENOMEM;
for (i = 0; i < (port->num_def_qps); i++) {
struct ehea_port_res *pr = &port->port_res[i];
@@ -2640,6 +2638,7 @@ static int ehea_restart_qps(struct net_device *dev)
cb0);
if (hret != H_SUCCESS) {
netdev_err(dev, "query_ehea_qp failed (1)\n");
+ ret = -EFAULT;
goto out;
}
@@ -2652,6 +2651,7 @@ static int ehea_restart_qps(struct net_device *dev)
&dummy64, &dummy16, &dummy16);
if (hret != H_SUCCESS) {
netdev_err(dev, "modify_ehea_qp failed (1)\n");
+ ret = -EFAULT;
goto out;
}
@@ -2660,6 +2660,7 @@ static int ehea_restart_qps(struct net_device *dev)
cb0);
if (hret != H_SUCCESS) {
netdev_err(dev, "query_ehea_qp failed (2)\n");
+ ret = -EFAULT;
goto out;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 390/700] clk: tegra30: Use 300MHz for video decoder by default
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (388 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 389/700] ehea: fix error return code in ehea_restart_qps() Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 391/700] xfrm: remove the fragment check for ipv6 beet mode Greg Kroah-Hartman
` (315 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thierry Reding, Dmitry Osipenko, Sasha Levin
From: Dmitry Osipenko <digetx@gmail.com>
[ Upstream commit 56bb7c28ad00e7bcfc851c4e183c42d148d3ad4e ]
The 600MHz is a too high clock rate for some SoC versions for the video
decoder hardware and this may cause stability issues. Use 300MHz for the
video decoder by default, which is supported by all hardware versions.
Fixes: ed1a2459e20c ("clk: tegra: Add Tegra20/30 EMC clock implementation")
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/tegra/clk-tegra30.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index 16dbf83d2f62..a33688b2359e 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -1245,7 +1245,7 @@ static struct tegra_clk_init_table init_table[] __initdata = {
{ TEGRA30_CLK_GR3D, TEGRA30_CLK_PLL_C, 300000000, 0 },
{ TEGRA30_CLK_GR3D2, TEGRA30_CLK_PLL_C, 300000000, 0 },
{ TEGRA30_CLK_PLL_U, TEGRA30_CLK_CLK_MAX, 480000000, 0 },
- { TEGRA30_CLK_VDE, TEGRA30_CLK_PLL_C, 600000000, 0 },
+ { TEGRA30_CLK_VDE, TEGRA30_CLK_PLL_C, 300000000, 0 },
{ TEGRA30_CLK_SPDIF_IN_SYNC, TEGRA30_CLK_CLK_MAX, 24000000, 0 },
{ TEGRA30_CLK_I2S0_SYNC, TEGRA30_CLK_CLK_MAX, 24000000, 0 },
{ TEGRA30_CLK_I2S1_SYNC, TEGRA30_CLK_CLK_MAX, 24000000, 0 },
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 391/700] xfrm: remove the fragment check for ipv6 beet mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (389 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 390/700] clk: tegra30: Use 300MHz for video decoder by default Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 392/700] net/sched: act_vlan: Fix modify to allow 0 Greg Kroah-Hartman
` (314 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Xiumei Mu, Xin Long,
Steffen Klassert, Sasha Levin
From: Xin Long <lucien.xin@gmail.com>
[ Upstream commit eebd49a4ffb420a991c606e54aa3c9f02857a334 ]
In commit 68dc022d04eb ("xfrm: BEET mode doesn't support fragments
for inner packets"), it tried to fix the issue that in TX side the
packet is fragmented before the ESP encapping while in the RX side
the fragments always get reassembled before decapping with ESP.
This is not true for IPv6. IPv6 is different, and it's using exthdr
to save fragment info, as well as the ESP info. Exthdrs are added
in TX and processed in RX both in order. So in the above case, the
ESP decapping will be done earlier than the fragment reassembling
in TX side.
Here just remove the fragment check for the IPv6 inner packets to
recover the fragments support for BEET mode.
Fixes: 68dc022d04eb ("xfrm: BEET mode doesn't support fragments for inner packets")
Reported-by: Xiumei Mu <xmu@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/xfrm/xfrm_output.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index e4cb0ff4dcf4..ac907b9d32d1 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -711,15 +711,8 @@ out:
static int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb)
{
#if IS_ENABLED(CONFIG_IPV6)
- unsigned int ptr = 0;
int err;
- if (x->outer_mode.encap == XFRM_MODE_BEET &&
- ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL, NULL) >= 0) {
- net_warn_ratelimited("BEET mode doesn't support inner IPv6 fragments\n");
- return -EAFNOSUPPORT;
- }
-
err = xfrm6_tunnel_check_size(skb);
if (err)
return err;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 392/700] net/sched: act_vlan: Fix modify to allow 0
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (390 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 391/700] xfrm: remove the fragment check for ipv6 beet mode Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 393/700] RDMA/core: Sanitize WQ state received from the userspace Greg Kroah-Hartman
` (313 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Boris Sukholitko, David S. Miller,
Sasha Levin
From: Boris Sukholitko <boris.sukholitko@broadcom.com>
[ Upstream commit 9c5eee0afca09cbde6bd00f77876754aaa552970 ]
Currently vlan modification action checks existence of vlan priority by
comparing it to 0. Therefore it is impossible to modify existing vlan
tag to have priority 0.
For example, the following tc command will change the vlan id but will
not affect vlan priority:
tc filter add dev eth1 ingress matchall action vlan modify id 300 \
priority 0 pipe mirred egress redirect dev eth2
The incoming packet on eth1:
ethertype 802.1Q (0x8100), vlan 200, p 4, ethertype IPv4
will be changed to:
ethertype 802.1Q (0x8100), vlan 300, p 4, ethertype IPv4
although the user has intended to have p == 0.
The fix is to add tcfv_push_prio_exists flag to struct tcf_vlan_params
and rely on it when deciding to set the priority.
Fixes: 45a497f2d149a4a8061c (net/sched: act_vlan: Introduce TCA_VLAN_ACT_MODIFY vlan action)
Signed-off-by: Boris Sukholitko <boris.sukholitko@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/tc_act/tc_vlan.h | 1 +
net/sched/act_vlan.c | 7 +++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/include/net/tc_act/tc_vlan.h b/include/net/tc_act/tc_vlan.h
index f051046ba034..f94b8bc26f9e 100644
--- a/include/net/tc_act/tc_vlan.h
+++ b/include/net/tc_act/tc_vlan.h
@@ -16,6 +16,7 @@ struct tcf_vlan_params {
u16 tcfv_push_vid;
__be16 tcfv_push_proto;
u8 tcfv_push_prio;
+ bool tcfv_push_prio_exists;
struct rcu_head rcu;
};
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index 1cac3c6fbb49..a108469c664f 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -70,7 +70,7 @@ static int tcf_vlan_act(struct sk_buff *skb, const struct tc_action *a,
/* replace the vid */
tci = (tci & ~VLAN_VID_MASK) | p->tcfv_push_vid;
/* replace prio bits, if tcfv_push_prio specified */
- if (p->tcfv_push_prio) {
+ if (p->tcfv_push_prio_exists) {
tci &= ~VLAN_PRIO_MASK;
tci |= p->tcfv_push_prio << VLAN_PRIO_SHIFT;
}
@@ -121,6 +121,7 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
struct tc_action_net *tn = net_generic(net, vlan_net_id);
struct nlattr *tb[TCA_VLAN_MAX + 1];
struct tcf_chain *goto_ch = NULL;
+ bool push_prio_exists = false;
struct tcf_vlan_params *p;
struct tc_vlan *parm;
struct tcf_vlan *v;
@@ -189,7 +190,8 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
push_proto = htons(ETH_P_8021Q);
}
- if (tb[TCA_VLAN_PUSH_VLAN_PRIORITY])
+ push_prio_exists = !!tb[TCA_VLAN_PUSH_VLAN_PRIORITY];
+ if (push_prio_exists)
push_prio = nla_get_u8(tb[TCA_VLAN_PUSH_VLAN_PRIORITY]);
break;
case TCA_VLAN_ACT_POP_ETH:
@@ -241,6 +243,7 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
p->tcfv_action = action;
p->tcfv_push_vid = push_vid;
p->tcfv_push_prio = push_prio;
+ p->tcfv_push_prio_exists = push_prio_exists || action == TCA_VLAN_ACT_PUSH;
p->tcfv_push_proto = push_proto;
if (action == TCA_VLAN_ACT_PUSH_ETH) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 393/700] RDMA/core: Sanitize WQ state received from the userspace
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (391 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 392/700] net/sched: act_vlan: Fix modify to allow 0 Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 394/700] drm/pl111: depend on CONFIG_VEXPRESS_CONFIG Greg Kroah-Hartman
` (312 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiapeng Chong, Leon Romanovsky,
Jason Gunthorpe, Sasha Levin
From: Leon Romanovsky <leonro@nvidia.com>
[ Upstream commit f97442887275d11c88c2899e720fe945c1f61488 ]
The mlx4 and mlx5 implemented differently the WQ input checks. Instead of
duplicating mlx4 logic in the mlx5, let's prepare the input in the central
place.
The mlx5 implementation didn't check for validity of state input. It is
not real bug because our FW checked that, but still worth to fix.
Fixes: f213c0527210 ("IB/uverbs: Add WQ support")
Link: https://lore.kernel.org/r/ac41ad6a81b095b1a8ad453dcf62cf8d3c5da779.1621413310.git.leonro@nvidia.com
Reported-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/core/uverbs_cmd.c | 21 +++++++++++++++++++--
drivers/infiniband/hw/mlx4/qp.c | 9 ++-------
drivers/infiniband/hw/mlx5/qp.c | 6 ++----
3 files changed, 23 insertions(+), 13 deletions(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index ab55f8b3190e..92ae454d500a 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3033,12 +3033,29 @@ static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs)
if (!wq)
return -EINVAL;
- wq_attr.curr_wq_state = cmd.curr_wq_state;
- wq_attr.wq_state = cmd.wq_state;
if (cmd.attr_mask & IB_WQ_FLAGS) {
wq_attr.flags = cmd.flags;
wq_attr.flags_mask = cmd.flags_mask;
}
+
+ if (cmd.attr_mask & IB_WQ_CUR_STATE) {
+ if (cmd.curr_wq_state > IB_WQS_ERR)
+ return -EINVAL;
+
+ wq_attr.curr_wq_state = cmd.curr_wq_state;
+ } else {
+ wq_attr.curr_wq_state = wq->state;
+ }
+
+ if (cmd.attr_mask & IB_WQ_STATE) {
+ if (cmd.wq_state > IB_WQS_ERR)
+ return -EINVAL;
+
+ wq_attr.wq_state = cmd.wq_state;
+ } else {
+ wq_attr.wq_state = wq_attr.curr_wq_state;
+ }
+
ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask,
&attrs->driver_udata);
rdma_lookup_put_uobject(&wq->uobject->uevent.uobject,
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 651785bd57f2..18a47248e444 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -4254,13 +4254,8 @@ int mlx4_ib_modify_wq(struct ib_wq *ibwq, struct ib_wq_attr *wq_attr,
if (wq_attr_mask & IB_WQ_FLAGS)
return -EOPNOTSUPP;
- cur_state = wq_attr_mask & IB_WQ_CUR_STATE ? wq_attr->curr_wq_state :
- ibwq->state;
- new_state = wq_attr_mask & IB_WQ_STATE ? wq_attr->wq_state : cur_state;
-
- if (cur_state < IB_WQS_RESET || cur_state > IB_WQS_ERR ||
- new_state < IB_WQS_RESET || new_state > IB_WQS_ERR)
- return -EINVAL;
+ cur_state = wq_attr->curr_wq_state;
+ new_state = wq_attr->wq_state;
if ((new_state == IB_WQS_RDY) && (cur_state == IB_WQS_ERR))
return -EINVAL;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 843f9e7fe96f..bcaaf238b364 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -5309,10 +5309,8 @@ int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
- curr_wq_state = (wq_attr_mask & IB_WQ_CUR_STATE) ?
- wq_attr->curr_wq_state : wq->state;
- wq_state = (wq_attr_mask & IB_WQ_STATE) ?
- wq_attr->wq_state : curr_wq_state;
+ curr_wq_state = wq_attr->curr_wq_state;
+ wq_state = wq_attr->wq_state;
if (curr_wq_state == IB_WQS_ERR)
curr_wq_state = MLX5_RQC_STATE_ERR;
if (wq_state == IB_WQS_ERR)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 394/700] drm/pl111: depend on CONFIG_VEXPRESS_CONFIG
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (392 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 393/700] RDMA/core: Sanitize WQ state received from the userspace Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 395/700] RDMA/rxe: Fix failure during driver load Greg Kroah-Hartman
` (311 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kees Cook, Daniel Vetter, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit 4dc7c97d04dcaa9f19482f70dcfdbeb52cc7193f ]
Avoid randconfig build failures by requiring VEXPRESS_CONFIG:
aarch64-linux-gnu-ld: drivers/gpu/drm/pl111/pl111_versatile.o: in function `pl111_vexpress_clcd_init':
pl111_versatile.c:(.text+0x220): undefined reference to `devm_regmap_init_vexpress_config'
Fixes: 826fc86b5903 ("drm: pl111: Move VExpress setup into versatile init")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210602215252.695994-4-keescook@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/pl111/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/pl111/Kconfig b/drivers/gpu/drm/pl111/Kconfig
index 80f6748055e3..c5210a5bef1b 100644
--- a/drivers/gpu/drm/pl111/Kconfig
+++ b/drivers/gpu/drm/pl111/Kconfig
@@ -2,7 +2,7 @@
config DRM_PL111
tristate "DRM Support for PL111 CLCD Controller"
depends on DRM
- depends on ARM || ARM64 || COMPILE_TEST
+ depends on VEXPRESS_CONFIG
depends on COMMON_CLK
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 395/700] RDMA/rxe: Fix failure during driver load
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (393 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 394/700] drm/pl111: depend on CONFIG_VEXPRESS_CONFIG Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:07 ` [PATCH 5.12 396/700] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends Greg Kroah-Hartman
` (310 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yi Zhang, Kamal Heib,
Jason Gunthorpe, Sasha Levin
From: Kamal Heib <kamalheib1@gmail.com>
[ Upstream commit 32a25f2ea690dfaace19f7a3a916f5d7e1ddafe8 ]
To avoid the following failure when trying to load the rdma_rxe module
while IPv6 is disabled, add a check for EAFNOSUPPORT and ignore the
failure, also delete the needless debug print from rxe_setup_udp_tunnel().
$ modprobe rdma_rxe
modprobe: ERROR: could not insert 'rdma_rxe': Operation not permitted
Fixes: dfdd6158ca2c ("IB/rxe: Fix kernel panic in udp_setup_tunnel")
Link: https://lore.kernel.org/r/20210603090112.36341-1-kamalheib1@gmail.com
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/rxe/rxe_net.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
index 01662727dca0..fc1ba4904279 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.c
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
@@ -207,10 +207,8 @@ static struct socket *rxe_setup_udp_tunnel(struct net *net, __be16 port,
/* Create UDP socket */
err = udp_sock_create(net, &udp_cfg, &sock);
- if (err < 0) {
- pr_err("failed to create udp socket. err = %d\n", err);
+ if (err < 0)
return ERR_PTR(err);
- }
tnl_cfg.encap_type = 1;
tnl_cfg.encap_rcv = rxe_udp_encap_recv;
@@ -619,6 +617,12 @@ static int rxe_net_ipv6_init(void)
recv_sockets.sk6 = rxe_setup_udp_tunnel(&init_net,
htons(ROCE_V2_UDP_DPORT), true);
+ if (PTR_ERR(recv_sockets.sk6) == -EAFNOSUPPORT) {
+ recv_sockets.sk6 = NULL;
+ pr_warn("IPv6 is not supported, can not create a UDPv6 socket\n");
+ return 0;
+ }
+
if (IS_ERR(recv_sockets.sk6)) {
recv_sockets.sk6 = NULL;
pr_err("Failed to create IPv6 UDP tunnel\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 396/700] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (394 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 395/700] RDMA/rxe: Fix failure during driver load Greg Kroah-Hartman
@ 2021-07-12 6:07 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 397/700] drm/vc4: hdmi: Fix error path of hpd-gpios Greg Kroah-Hartman
` (309 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:07 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kees Cook, Linus Walleij,
Rob Herring, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit 4e566003571244f508408f59ce78f6ac2ccdba8e ]
VEXPRESS_CONFIG needs to either be missing, built-in, or modular when
pl111 is modular. Update the Kconfig to reflect the need.
Fixes: 4dc7c97d04dc ("drm/pl111: depend on CONFIG_VEXPRESS_CONFIG")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210604014055.4060521-1-keescook@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/pl111/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/pl111/Kconfig b/drivers/gpu/drm/pl111/Kconfig
index c5210a5bef1b..3aae387a96af 100644
--- a/drivers/gpu/drm/pl111/Kconfig
+++ b/drivers/gpu/drm/pl111/Kconfig
@@ -2,7 +2,8 @@
config DRM_PL111
tristate "DRM Support for PL111 CLCD Controller"
depends on DRM
- depends on VEXPRESS_CONFIG
+ depends on ARM || ARM64 || COMPILE_TEST
+ depends on VEXPRESS_CONFIG || VEXPRESS_CONFIG=n
depends on COMMON_CLK
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 397/700] drm/vc4: hdmi: Fix error path of hpd-gpios
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (395 preceding siblings ...)
2021-07-12 6:07 ` [PATCH 5.12 396/700] drm/pl111: Actually fix CONFIG_VEXPRESS_CONFIG depends Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 398/700] clk: vc5: fix output disabling when enabling a FOD Greg Kroah-Hartman
` (308 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maxime Ripard, Linus Walleij, Sasha Levin
From: Maxime Ripard <maxime@cerno.tech>
[ Upstream commit e075a7811977ff51c917a65ed1896e08231d2615 ]
If the of_get_named_gpio_flags call fails in vc4_hdmi_bind, we jump to
the err_unprepare_hsm label. That label will then call
pm_runtime_disable and put_device on the DDC device.
We just retrieved the DDC device, so the latter is definitely justified.
However at that point we still haven't called pm_runtime_enable, so the
call to pm_runtime_disable is not supposed to be there.
Fixes: 10ee275cb12f ("drm/vc4: prepare for CEC support")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210524131852.263883-1-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 8106b5634fe1..e94730beb15b 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -2000,7 +2000,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
&hpd_gpio_flags);
if (vc4_hdmi->hpd_gpio < 0) {
ret = vc4_hdmi->hpd_gpio;
- goto err_unprepare_hsm;
+ goto err_put_ddc;
}
vc4_hdmi->hpd_active_low = hpd_gpio_flags & OF_GPIO_ACTIVE_LOW;
@@ -2041,8 +2041,8 @@ err_destroy_conn:
vc4_hdmi_connector_destroy(&vc4_hdmi->connector);
err_destroy_encoder:
drm_encoder_cleanup(encoder);
-err_unprepare_hsm:
pm_runtime_disable(dev);
+err_put_ddc:
put_device(&vc4_hdmi->ddc->dev);
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 398/700] clk: vc5: fix output disabling when enabling a FOD
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (396 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 397/700] drm/vc4: hdmi: Fix error path of hpd-gpios Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 399/700] drm: qxl: ensure surf.data is ininitialized Greg Kroah-Hartman
` (307 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luca Ceresoli, Adam Ford,
Stephen Boyd, Sasha Levin
From: Luca Ceresoli <luca@lucaceresoli.net>
[ Upstream commit fc336ae622df0ec114dbe5551a4d2760c535ecd0 ]
On 5P49V6965, when an output is enabled we enable the corresponding
FOD. When this happens for the first time, and specifically when writing
register VC5_OUT_DIV_CONTROL in vc5_clk_out_prepare(), all other outputs
are stopped for a short time and then restarted.
According to Renesas support this is intended: "The reason for that is VC6E
has synced up all output function".
This behaviour can be disabled at least on VersaClock 6E devices, of which
only the 5P49V6965 is currently implemented by this driver. This requires
writing bit 7 (bypass_sync{1..4}) in register 0x20..0x50. Those registers
are named "Unused Factory Reserved Register", and the bits are documented
as "Skip VDDO<N> verification", which does not clearly explain the relation
to FOD sync. However according to Renesas support as well as my testing
setting this bit does prevent disabling of all clock outputs when enabling
a FOD.
See "VersaClock ® 6E Family Register Descriptions and Programming Guide"
(August 30, 2018), Table 116 "Power Up VDD check", page 58:
https://www.renesas.com/us/en/document/mau/versaclock-6e-family-register-descriptions-and-programming-guide
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/20210527211647.1520720-1-luca@lucaceresoli.net
Fixes: 2bda748e6ad8 ("clk: vc5: Add support for IDT VersaClock 5P49V6965")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/clk-versaclock5.c | 27 ++++++++++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/clk-versaclock5.c b/drivers/clk/clk-versaclock5.c
index 344cd6c61188..3c737742c2a9 100644
--- a/drivers/clk/clk-versaclock5.c
+++ b/drivers/clk/clk-versaclock5.c
@@ -69,7 +69,10 @@
#define VC5_FEEDBACK_FRAC_DIV(n) (0x19 + (n))
#define VC5_RC_CONTROL0 0x1e
#define VC5_RC_CONTROL1 0x1f
-/* Register 0x20 is factory reserved */
+
+/* These registers are named "Unused Factory Reserved Registers" */
+#define VC5_RESERVED_X0(idx) (0x20 + ((idx) * 0x10))
+#define VC5_RESERVED_X0_BYPASS_SYNC BIT(7) /* bypass_sync<idx> bit */
/* Output divider control for divider 1,2,3,4 */
#define VC5_OUT_DIV_CONTROL(idx) (0x21 + ((idx) * 0x10))
@@ -87,7 +90,6 @@
#define VC5_OUT_DIV_SKEW_INT(idx, n) (0x2b + ((idx) * 0x10) + (n))
#define VC5_OUT_DIV_INT(idx, n) (0x2d + ((idx) * 0x10) + (n))
#define VC5_OUT_DIV_SKEW_FRAC(idx) (0x2f + ((idx) * 0x10))
-/* Registers 0x30, 0x40, 0x50 are factory reserved */
/* Clock control register for clock 1,2 */
#define VC5_CLK_OUTPUT_CFG(idx, n) (0x60 + ((idx) * 0x2) + (n))
@@ -140,6 +142,8 @@
#define VC5_HAS_INTERNAL_XTAL BIT(0)
/* chip has PFD requency doubler */
#define VC5_HAS_PFD_FREQ_DBL BIT(1)
+/* chip has bits to disable FOD sync */
+#define VC5_HAS_BYPASS_SYNC_BIT BIT(2)
/* Supported IDT VC5 models. */
enum vc5_model {
@@ -581,6 +585,23 @@ static int vc5_clk_out_prepare(struct clk_hw *hw)
unsigned int src;
int ret;
+ /*
+ * When enabling a FOD, all currently enabled FODs are briefly
+ * stopped in order to synchronize all of them. This causes a clock
+ * disruption to any unrelated chips that might be already using
+ * other clock outputs. Bypass the sync feature to avoid the issue,
+ * which is possible on the VersaClock 6E family via reserved
+ * registers.
+ */
+ if (vc5->chip_info->flags & VC5_HAS_BYPASS_SYNC_BIT) {
+ ret = regmap_update_bits(vc5->regmap,
+ VC5_RESERVED_X0(hwdata->num),
+ VC5_RESERVED_X0_BYPASS_SYNC,
+ VC5_RESERVED_X0_BYPASS_SYNC);
+ if (ret)
+ return ret;
+ }
+
/*
* If the input mux is disabled, enable it first and
* select source from matching FOD.
@@ -1166,7 +1187,7 @@ static const struct vc5_chip_info idt_5p49v6965_info = {
.model = IDT_VC6_5P49V6965,
.clk_fod_cnt = 4,
.clk_out_cnt = 5,
- .flags = 0,
+ .flags = VC5_HAS_BYPASS_SYNC_BIT,
};
static const struct i2c_device_id vc5_id[] = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 399/700] drm: qxl: ensure surf.data is ininitialized
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (397 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 398/700] clk: vc5: fix output disabling when enabling a FOD Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 400/700] tools/bpftool: Fix error return code in do_batch() Greg Kroah-Hartman
` (306 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Colin Ian King, Gerd Hoffmann, Sasha Levin
From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit fbbf23ddb2a1cc0c12c9f78237d1561c24006f50 ]
The object surf is not fully initialized and the uninitialized
field surf.data is being copied by the call to qxl_bo_create
via the call to qxl_gem_object_create. Set surf.data to zero
to ensure garbage data from the stack is not being copied.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: f64122c1f6ad ("drm: add new QXL driver. (v1.4)")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210608161313.161922-1-colin.king@canonical.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/qxl/qxl_dumb.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/qxl/qxl_dumb.c b/drivers/gpu/drm/qxl/qxl_dumb.c
index c04cd5a2553c..e377bdbff90d 100644
--- a/drivers/gpu/drm/qxl/qxl_dumb.c
+++ b/drivers/gpu/drm/qxl/qxl_dumb.c
@@ -58,6 +58,8 @@ int qxl_mode_dumb_create(struct drm_file *file_priv,
surf.height = args->height;
surf.stride = pitch;
surf.format = format;
+ surf.data = 0;
+
r = qxl_gem_object_create_with_handle(qdev, file_priv,
QXL_GEM_DOMAIN_SURFACE,
args->size, &surf, &qobj,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 400/700] tools/bpftool: Fix error return code in do_batch()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (398 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 399/700] drm: qxl: ensure surf.data is ininitialized Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 401/700] ath10k: go to path err_unsupported when chip id is not supported Greg Kroah-Hartman
` (305 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhihao Cheng,
Andrii Nakryiko, Quentin Monnet, Sasha Levin
From: Zhihao Cheng <chengzhihao1@huawei.com>
[ Upstream commit ca16b429f39b4ce013bfa7e197f25681e65a2a42 ]
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: 668da745af3c2 ("tools: bpftool: add support for quotations ...")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20210609115916.2186872-1-chengzhihao1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/bpf/bpftool/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index d9afb730136a..0f36b9edd3f5 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -340,8 +340,10 @@ static int do_batch(int argc, char **argv)
n_argc = make_args(buf, n_argv, BATCH_ARG_NB_MAX, lines);
if (!n_argc)
continue;
- if (n_argc < 0)
+ if (n_argc < 0) {
+ err = n_argc;
goto err_close;
+ }
if (json_output) {
jsonw_start_object(json_wtr);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 401/700] ath10k: go to path err_unsupported when chip id is not supported
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (399 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 400/700] tools/bpftool: Fix error return code in do_batch() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 402/700] ath10k: add missing error return code in ath10k_pci_probe() Greg Kroah-Hartman
` (304 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yang Yingliang, Kalle Valo, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit 9e88dd431d2345acdb7a549f3e88aaf4c2a307a1 ]
When chip id is not supported, it go to path err_unsupported
to print the error message.
Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210522105822.1091848-2-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath10k/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e7fde635e0ee..463cf3f8f8a5 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3701,7 +3701,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
goto err_unsupported;
if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id))
- goto err_free_irq;
+ goto err_unsupported;
ret = ath10k_core_register(ar, &bus_params);
if (ret) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 402/700] ath10k: add missing error return code in ath10k_pci_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (400 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 401/700] ath10k: go to path err_unsupported when chip id is not supported Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 403/700] wireless: carl9170: fix LEDS build errors & warnings Greg Kroah-Hartman
` (303 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
Kalle Valo, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit e2783e2f39ba99178dedfc1646d5cc0979d1bab3 ]
When chip_id is not supported, the resources will be freed
on path err_unsupported, these resources will also be freed
when calling ath10k_pci_remove(), it will cause double free,
so return -ENODEV when it doesn't support the device with wrong
chip_id.
Fixes: c0c378f9907c ("ath10k: remove target soc ps code")
Fixes: 7505f7c3ec1d ("ath10k: create a chip revision whitelist")
Fixes: f8914a14623a ("ath10k: restore QCA9880-AR1A (v1) detection")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210522105822.1091848-3-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath10k/pci.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 463cf3f8f8a5..71878ab35b93 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3685,8 +3685,10 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
if (bus_params.chip_id != 0xffffffff) {
if (!ath10k_pci_chip_is_supported(pdev->device,
- bus_params.chip_id))
+ bus_params.chip_id)) {
+ ret = -ENODEV;
goto err_unsupported;
+ }
}
}
@@ -3697,11 +3699,15 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
}
bus_params.chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
- if (bus_params.chip_id == 0xffffffff)
+ if (bus_params.chip_id == 0xffffffff) {
+ ret = -ENODEV;
goto err_unsupported;
+ }
- if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id))
+ if (!ath10k_pci_chip_is_supported(pdev->device, bus_params.chip_id)) {
+ ret = -ENODEV;
goto err_unsupported;
+ }
ret = ath10k_core_register(ar, &bus_params);
if (ret) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 403/700] wireless: carl9170: fix LEDS build errors & warnings
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (401 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 402/700] ath10k: add missing error return code in ath10k_pci_probe() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 404/700] ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others Greg Kroah-Hartman
` (302 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, kernel test robot,
Kalle Valo, Christian Lamparter, linux-wireless, Arnd Bergmann,
Christian Lamparter, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 272fdc0c4542fad173b44965be02a16d6db95499 ]
kernel test robot reports over 200 build errors and warnings
that are due to this Kconfig problem when CARL9170=m,
MAC80211=y, and LEDS_CLASS=m.
WARNING: unmet direct dependencies detected for MAC80211_LEDS
Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y])
Selected by [m]:
- CARL9170_LEDS [=y] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ATH [=y] && CARL9170 [=m]
CARL9170_LEDS selects MAC80211_LEDS even though its kconfig
dependencies are not met. This happens because 'select' does not follow
any Kconfig dependency chains.
Fix this by making CARL9170_LEDS depend on MAC80211_LEDS, where
the latter supplies any needed dependencies on LEDS_CLASS.
Fixes: 1d7e1e6b1b8ed ("carl9170: Makefile, Kconfig files and MAINTAINERS")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: linux-wireless@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Christian Lamparter <chunkeey@googlemail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210530031134.23274-1-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/carl9170/Kconfig | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/carl9170/Kconfig b/drivers/net/wireless/ath/carl9170/Kconfig
index b2d760873992..ba9bea79381c 100644
--- a/drivers/net/wireless/ath/carl9170/Kconfig
+++ b/drivers/net/wireless/ath/carl9170/Kconfig
@@ -16,13 +16,11 @@ config CARL9170
config CARL9170_LEDS
bool "SoftLED Support"
- depends on CARL9170
- select MAC80211_LEDS
- select LEDS_CLASS
- select NEW_LEDS
default y
+ depends on CARL9170
+ depends on MAC80211_LEDS
help
- This option is necessary, if you want your device' LEDs to blink
+ This option is necessary, if you want your device's LEDs to blink.
Say Y, unless you need the LEDs for firmware debugging.
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 404/700] ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (402 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 403/700] wireless: carl9170: fix LEDS build errors & warnings Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 405/700] clk: imx8mq: remove SYS PLL 1/2 clock gates Greg Kroah-Hartman
` (301 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dongliang Mu, Alexander Aring,
Stefan Schmidt, Sasha Levin
From: Dongliang Mu <mudongliangabcd@gmail.com>
[ Upstream commit ab372c2293f5d0b279f31c8d768566ea37602dc9 ]
In hwsim_subscribe_all_others, the error handling code performs
incorrectly if the second hwsim_alloc_edge fails. When this issue occurs,
it goes to sub_fail, without cleaning the edges allocated before.
Fixes: f25da51fdc38 ("ieee802154: hwsim: add replacement for fakelb")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210611015812.1626999-1-mudongliangabcd@gmail.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ieee802154/mac802154_hwsim.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
index c0bf7d78276e..7a168170224a 100644
--- a/drivers/net/ieee802154/mac802154_hwsim.c
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -715,6 +715,8 @@ static int hwsim_subscribe_all_others(struct hwsim_phy *phy)
return 0;
+sub_fail:
+ hwsim_edge_unsubscribe_me(phy);
me_fail:
rcu_read_lock();
list_for_each_entry_rcu(e, &phy->edges, list) {
@@ -722,8 +724,6 @@ me_fail:
hwsim_free_edge(e);
}
rcu_read_unlock();
-sub_fail:
- hwsim_edge_unsubscribe_me(phy);
return -ENOMEM;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 405/700] clk: imx8mq: remove SYS PLL 1/2 clock gates
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (403 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 404/700] ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 406/700] wcn36xx: Move hal_buf allocation to devm_kmalloc in probe Greg Kroah-Hartman
` (300 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lucas Stach, Abel Vesa, Sasha Levin
From: Lucas Stach <l.stach@pengutronix.de>
[ Upstream commit c586f53ae159c6c1390f093a1ec94baef2df9f3a ]
Remove the PLL clock gates as the allowing to gate the sys1_pll_266m breaks
the uSDHC module which is sporadically unable to enumerate devices after
this change. Also it makes AMP clock management harder with no obvious
benefit to Linux, so just revert the change.
Link: https://lore.kernel.org/r/20210528180135.1640876-1-l.stach@pengutronix.de
Fixes: b04383b6a558 ("clk: imx8mq: Define gates for pll1/2 fixed dividers")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/imx/clk-imx8mq.c | 56 ++++++++----------------
include/dt-bindings/clock/imx8mq-clock.h | 19 --------
2 files changed, 18 insertions(+), 57 deletions(-)
diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c
index 3e1a10d3f55c..b9bad6d92671 100644
--- a/drivers/clk/imx/clk-imx8mq.c
+++ b/drivers/clk/imx/clk-imx8mq.c
@@ -358,46 +358,26 @@ static int imx8mq_clocks_probe(struct platform_device *pdev)
hws[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_hw_sscg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);
/* SYS PLL1 fixed output */
- hws[IMX8MQ_SYS1_PLL_40M_CG] = imx_clk_hw_gate("sys1_pll_40m_cg", "sys1_pll_out", base + 0x30, 9);
- hws[IMX8MQ_SYS1_PLL_80M_CG] = imx_clk_hw_gate("sys1_pll_80m_cg", "sys1_pll_out", base + 0x30, 11);
- hws[IMX8MQ_SYS1_PLL_100M_CG] = imx_clk_hw_gate("sys1_pll_100m_cg", "sys1_pll_out", base + 0x30, 13);
- hws[IMX8MQ_SYS1_PLL_133M_CG] = imx_clk_hw_gate("sys1_pll_133m_cg", "sys1_pll_out", base + 0x30, 15);
- hws[IMX8MQ_SYS1_PLL_160M_CG] = imx_clk_hw_gate("sys1_pll_160m_cg", "sys1_pll_out", base + 0x30, 17);
- hws[IMX8MQ_SYS1_PLL_200M_CG] = imx_clk_hw_gate("sys1_pll_200m_cg", "sys1_pll_out", base + 0x30, 19);
- hws[IMX8MQ_SYS1_PLL_266M_CG] = imx_clk_hw_gate("sys1_pll_266m_cg", "sys1_pll_out", base + 0x30, 21);
- hws[IMX8MQ_SYS1_PLL_400M_CG] = imx_clk_hw_gate("sys1_pll_400m_cg", "sys1_pll_out", base + 0x30, 23);
- hws[IMX8MQ_SYS1_PLL_800M_CG] = imx_clk_hw_gate("sys1_pll_800m_cg", "sys1_pll_out", base + 0x30, 25);
-
- hws[IMX8MQ_SYS1_PLL_40M] = imx_clk_hw_fixed_factor("sys1_pll_40m", "sys1_pll_40m_cg", 1, 20);
- hws[IMX8MQ_SYS1_PLL_80M] = imx_clk_hw_fixed_factor("sys1_pll_80m", "sys1_pll_80m_cg", 1, 10);
- hws[IMX8MQ_SYS1_PLL_100M] = imx_clk_hw_fixed_factor("sys1_pll_100m", "sys1_pll_100m_cg", 1, 8);
- hws[IMX8MQ_SYS1_PLL_133M] = imx_clk_hw_fixed_factor("sys1_pll_133m", "sys1_pll_133m_cg", 1, 6);
- hws[IMX8MQ_SYS1_PLL_160M] = imx_clk_hw_fixed_factor("sys1_pll_160m", "sys1_pll_160m_cg", 1, 5);
- hws[IMX8MQ_SYS1_PLL_200M] = imx_clk_hw_fixed_factor("sys1_pll_200m", "sys1_pll_200m_cg", 1, 4);
- hws[IMX8MQ_SYS1_PLL_266M] = imx_clk_hw_fixed_factor("sys1_pll_266m", "sys1_pll_266m_cg", 1, 3);
- hws[IMX8MQ_SYS1_PLL_400M] = imx_clk_hw_fixed_factor("sys1_pll_400m", "sys1_pll_400m_cg", 1, 2);
- hws[IMX8MQ_SYS1_PLL_800M] = imx_clk_hw_fixed_factor("sys1_pll_800m", "sys1_pll_800m_cg", 1, 1);
+ hws[IMX8MQ_SYS1_PLL_40M] = imx_clk_hw_fixed_factor("sys1_pll_40m", "sys1_pll_out", 1, 20);
+ hws[IMX8MQ_SYS1_PLL_80M] = imx_clk_hw_fixed_factor("sys1_pll_80m", "sys1_pll_out", 1, 10);
+ hws[IMX8MQ_SYS1_PLL_100M] = imx_clk_hw_fixed_factor("sys1_pll_100m", "sys1_pll_out", 1, 8);
+ hws[IMX8MQ_SYS1_PLL_133M] = imx_clk_hw_fixed_factor("sys1_pll_133m", "sys1_pll_out", 1, 6);
+ hws[IMX8MQ_SYS1_PLL_160M] = imx_clk_hw_fixed_factor("sys1_pll_160m", "sys1_pll_out", 1, 5);
+ hws[IMX8MQ_SYS1_PLL_200M] = imx_clk_hw_fixed_factor("sys1_pll_200m", "sys1_pll_out", 1, 4);
+ hws[IMX8MQ_SYS1_PLL_266M] = imx_clk_hw_fixed_factor("sys1_pll_266m", "sys1_pll_out", 1, 3);
+ hws[IMX8MQ_SYS1_PLL_400M] = imx_clk_hw_fixed_factor("sys1_pll_400m", "sys1_pll_out", 1, 2);
+ hws[IMX8MQ_SYS1_PLL_800M] = imx_clk_hw_fixed_factor("sys1_pll_800m", "sys1_pll_out", 1, 1);
/* SYS PLL2 fixed output */
- hws[IMX8MQ_SYS2_PLL_50M_CG] = imx_clk_hw_gate("sys2_pll_50m_cg", "sys2_pll_out", base + 0x3c, 9);
- hws[IMX8MQ_SYS2_PLL_100M_CG] = imx_clk_hw_gate("sys2_pll_100m_cg", "sys2_pll_out", base + 0x3c, 11);
- hws[IMX8MQ_SYS2_PLL_125M_CG] = imx_clk_hw_gate("sys2_pll_125m_cg", "sys2_pll_out", base + 0x3c, 13);
- hws[IMX8MQ_SYS2_PLL_166M_CG] = imx_clk_hw_gate("sys2_pll_166m_cg", "sys2_pll_out", base + 0x3c, 15);
- hws[IMX8MQ_SYS2_PLL_200M_CG] = imx_clk_hw_gate("sys2_pll_200m_cg", "sys2_pll_out", base + 0x3c, 17);
- hws[IMX8MQ_SYS2_PLL_250M_CG] = imx_clk_hw_gate("sys2_pll_250m_cg", "sys2_pll_out", base + 0x3c, 19);
- hws[IMX8MQ_SYS2_PLL_333M_CG] = imx_clk_hw_gate("sys2_pll_333m_cg", "sys2_pll_out", base + 0x3c, 21);
- hws[IMX8MQ_SYS2_PLL_500M_CG] = imx_clk_hw_gate("sys2_pll_500m_cg", "sys2_pll_out", base + 0x3c, 23);
- hws[IMX8MQ_SYS2_PLL_1000M_CG] = imx_clk_hw_gate("sys2_pll_1000m_cg", "sys2_pll_out", base + 0x3c, 25);
-
- hws[IMX8MQ_SYS2_PLL_50M] = imx_clk_hw_fixed_factor("sys2_pll_50m", "sys2_pll_50m_cg", 1, 20);
- hws[IMX8MQ_SYS2_PLL_100M] = imx_clk_hw_fixed_factor("sys2_pll_100m", "sys2_pll_100m_cg", 1, 10);
- hws[IMX8MQ_SYS2_PLL_125M] = imx_clk_hw_fixed_factor("sys2_pll_125m", "sys2_pll_125m_cg", 1, 8);
- hws[IMX8MQ_SYS2_PLL_166M] = imx_clk_hw_fixed_factor("sys2_pll_166m", "sys2_pll_166m_cg", 1, 6);
- hws[IMX8MQ_SYS2_PLL_200M] = imx_clk_hw_fixed_factor("sys2_pll_200m", "sys2_pll_200m_cg", 1, 5);
- hws[IMX8MQ_SYS2_PLL_250M] = imx_clk_hw_fixed_factor("sys2_pll_250m", "sys2_pll_250m_cg", 1, 4);
- hws[IMX8MQ_SYS2_PLL_333M] = imx_clk_hw_fixed_factor("sys2_pll_333m", "sys2_pll_333m_cg", 1, 3);
- hws[IMX8MQ_SYS2_PLL_500M] = imx_clk_hw_fixed_factor("sys2_pll_500m", "sys2_pll_500m_cg", 1, 2);
- hws[IMX8MQ_SYS2_PLL_1000M] = imx_clk_hw_fixed_factor("sys2_pll_1000m", "sys2_pll_1000m_cg", 1, 1);
+ hws[IMX8MQ_SYS2_PLL_50M] = imx_clk_hw_fixed_factor("sys2_pll_50m", "sys2_pll_out", 1, 20);
+ hws[IMX8MQ_SYS2_PLL_100M] = imx_clk_hw_fixed_factor("sys2_pll_100m", "sys2_pll_out", 1, 10);
+ hws[IMX8MQ_SYS2_PLL_125M] = imx_clk_hw_fixed_factor("sys2_pll_125m", "sys2_pll_out", 1, 8);
+ hws[IMX8MQ_SYS2_PLL_166M] = imx_clk_hw_fixed_factor("sys2_pll_166m", "sys2_pll_out", 1, 6);
+ hws[IMX8MQ_SYS2_PLL_200M] = imx_clk_hw_fixed_factor("sys2_pll_200m", "sys2_pll_out", 1, 5);
+ hws[IMX8MQ_SYS2_PLL_250M] = imx_clk_hw_fixed_factor("sys2_pll_250m", "sys2_pll_out", 1, 4);
+ hws[IMX8MQ_SYS2_PLL_333M] = imx_clk_hw_fixed_factor("sys2_pll_333m", "sys2_pll_out", 1, 3);
+ hws[IMX8MQ_SYS2_PLL_500M] = imx_clk_hw_fixed_factor("sys2_pll_500m", "sys2_pll_out", 1, 2);
+ hws[IMX8MQ_SYS2_PLL_1000M] = imx_clk_hw_fixed_factor("sys2_pll_1000m", "sys2_pll_out", 1, 1);
hws[IMX8MQ_CLK_MON_AUDIO_PLL1_DIV] = imx_clk_hw_divider("audio_pll1_out_monitor", "audio_pll1_bypass", base + 0x78, 0, 3);
hws[IMX8MQ_CLK_MON_AUDIO_PLL2_DIV] = imx_clk_hw_divider("audio_pll2_out_monitor", "audio_pll2_bypass", base + 0x78, 4, 3);
diff --git a/include/dt-bindings/clock/imx8mq-clock.h b/include/dt-bindings/clock/imx8mq-clock.h
index 82e907ce7bdd..afa74d7ba100 100644
--- a/include/dt-bindings/clock/imx8mq-clock.h
+++ b/include/dt-bindings/clock/imx8mq-clock.h
@@ -405,25 +405,6 @@
#define IMX8MQ_VIDEO2_PLL1_REF_SEL 266
-#define IMX8MQ_SYS1_PLL_40M_CG 267
-#define IMX8MQ_SYS1_PLL_80M_CG 268
-#define IMX8MQ_SYS1_PLL_100M_CG 269
-#define IMX8MQ_SYS1_PLL_133M_CG 270
-#define IMX8MQ_SYS1_PLL_160M_CG 271
-#define IMX8MQ_SYS1_PLL_200M_CG 272
-#define IMX8MQ_SYS1_PLL_266M_CG 273
-#define IMX8MQ_SYS1_PLL_400M_CG 274
-#define IMX8MQ_SYS1_PLL_800M_CG 275
-#define IMX8MQ_SYS2_PLL_50M_CG 276
-#define IMX8MQ_SYS2_PLL_100M_CG 277
-#define IMX8MQ_SYS2_PLL_125M_CG 278
-#define IMX8MQ_SYS2_PLL_166M_CG 279
-#define IMX8MQ_SYS2_PLL_200M_CG 280
-#define IMX8MQ_SYS2_PLL_250M_CG 281
-#define IMX8MQ_SYS2_PLL_333M_CG 282
-#define IMX8MQ_SYS2_PLL_500M_CG 283
-#define IMX8MQ_SYS2_PLL_1000M_CG 284
-
#define IMX8MQ_CLK_GPU_CORE 285
#define IMX8MQ_CLK_GPU_SHADER 286
#define IMX8MQ_CLK_M4_CORE 287
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 406/700] wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (404 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 405/700] clk: imx8mq: remove SYS PLL 1/2 clock gates Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 407/700] ssb: Fix error return code in ssb_bus_scan() Greg Kroah-Hartman
` (299 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bryan ODonoghue, Kalle Valo, Sasha Levin
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
[ Upstream commit ef48667557c53d4b51a1ee3090eab7699324c9de ]
Right now wcn->hal_buf is allocated in wcn36xx_start(). This is a problem
since we should have setup all of the buffers we required by the time
ieee80211_register_hw() is called.
struct ieee80211_ops callbacks may run prior to mac_start() and therefore
wcn->hal_buf must be initialized.
This is easily remediated by moving the allocation to probe() taking the
opportunity to tidy up freeing memory by using devm_kmalloc().
Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210605173347.2266003-1-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/wcn36xx/main.c | 21 ++++++++-------------
1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index afb4877eaad8..dabed4e3ca45 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -293,23 +293,16 @@ static int wcn36xx_start(struct ieee80211_hw *hw)
goto out_free_dxe_pool;
}
- wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
- if (!wcn->hal_buf) {
- wcn36xx_err("Failed to allocate smd buf\n");
- ret = -ENOMEM;
- goto out_free_dxe_ctl;
- }
-
ret = wcn36xx_smd_load_nv(wcn);
if (ret) {
wcn36xx_err("Failed to push NV to chip\n");
- goto out_free_smd_buf;
+ goto out_free_dxe_ctl;
}
ret = wcn36xx_smd_start(wcn);
if (ret) {
wcn36xx_err("Failed to start chip\n");
- goto out_free_smd_buf;
+ goto out_free_dxe_ctl;
}
if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
@@ -336,8 +329,6 @@ static int wcn36xx_start(struct ieee80211_hw *hw)
out_smd_stop:
wcn36xx_smd_stop(wcn);
-out_free_smd_buf:
- kfree(wcn->hal_buf);
out_free_dxe_ctl:
wcn36xx_dxe_free_ctl_blks(wcn);
out_free_dxe_pool:
@@ -372,8 +363,6 @@ static void wcn36xx_stop(struct ieee80211_hw *hw)
wcn36xx_dxe_free_mem_pools(wcn);
wcn36xx_dxe_free_ctl_blks(wcn);
-
- kfree(wcn->hal_buf);
}
static void wcn36xx_change_ps(struct wcn36xx *wcn, bool enable)
@@ -1401,6 +1390,12 @@ static int wcn36xx_probe(struct platform_device *pdev)
mutex_init(&wcn->hal_mutex);
mutex_init(&wcn->scan_lock);
+ wcn->hal_buf = devm_kmalloc(wcn->dev, WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
+ if (!wcn->hal_buf) {
+ ret = -ENOMEM;
+ goto out_wq;
+ }
+
ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32));
if (ret < 0) {
wcn36xx_err("failed to set DMA mask: %d\n", ret);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 407/700] ssb: Fix error return code in ssb_bus_scan()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (405 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 406/700] wcn36xx: Move hal_buf allocation to devm_kmalloc in probe Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 408/700] brcmfmac: fix setting of station info chains bitmask Greg Kroah-Hartman
` (298 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei,
Michael Büsch, Kalle Valo, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit 77a0989baa427dbd242c5784d05a53ca3d197d43 ]
Fix to return -EINVAL from the error handling case instead of 0, as done
elsewhere in this function.
Fixes: 61e115a56d1a ("[SSB]: add Sonics Silicon Backplane bus support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210515072949.7151-1-thunder.leizhen@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/ssb/scan.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/ssb/scan.c b/drivers/ssb/scan.c
index f49ab1aa2149..4161e5d1f276 100644
--- a/drivers/ssb/scan.c
+++ b/drivers/ssb/scan.c
@@ -325,6 +325,7 @@ int ssb_bus_scan(struct ssb_bus *bus,
if (bus->nr_devices > ARRAY_SIZE(bus->devices)) {
pr_err("More than %d ssb cores found (%d)\n",
SSB_MAX_NR_CORES, bus->nr_devices);
+ err = -EINVAL;
goto err_unmap;
}
if (bus->bustype == SSB_BUSTYPE_SSB) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 408/700] brcmfmac: fix setting of station info chains bitmask
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (406 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 407/700] ssb: Fix error return code in ssb_bus_scan() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 409/700] brcmfmac: correctly report average RSSI in station info Greg Kroah-Hartman
` (297 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alvin Šipraga, Kalle Valo, Sasha Levin
From: Alvin Šipraga <ALSI@bang-olufsen.dk>
[ Upstream commit feb45643762172110cb3a44f99dd54304f33b711 ]
The sinfo->chains field is a bitmask for filled values in chain_signal
and chain_signal_avg, not a count. Treat it as such so that the driver
can properly report per-chain RSSI information.
Before (MIMO mode):
$ iw dev wlan0 station dump
...
signal: -51 [-51] dBm
After (MIMO mode):
$ iw dev wlan0 station dump
...
signal: -53 [-53, -54] dBm
Fixes: cae355dc90db ("brcmfmac: Add RSSI information to get_station.")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210506132010.3964484-1-alsi@bang-olufsen.dk
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index f4405d7861b6..afa75cb83221 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -2838,6 +2838,7 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
count_rssi = 0;
for (i = 0; i < BRCMF_ANT_MAX; i++) {
if (sta_info_le.rssi[i]) {
+ sinfo->chains |= BIT(count_rssi);
sinfo->chain_signal_avg[count_rssi] =
sta_info_le.rssi[i];
sinfo->chain_signal[count_rssi] =
@@ -2848,8 +2849,6 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
}
if (count_rssi) {
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL);
- sinfo->chains = count_rssi;
-
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
total_rssi /= count_rssi;
sinfo->signal = total_rssi;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 409/700] brcmfmac: correctly report average RSSI in station info
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (407 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 408/700] brcmfmac: fix setting of station info chains bitmask Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 410/700] brcmfmac: Fix a double-free in brcmf_sdio_bus_reset Greg Kroah-Hartman
` (296 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alvin Šipraga, Kalle Valo, Sasha Levin
From: Alvin Šipraga <ALSI@bang-olufsen.dk>
[ Upstream commit 9a1590934d9a02e570636432b93052c0c035f31f ]
The rx_lastpkt_rssi field provided by the firmware is suitable for
NL80211_STA_INFO_{SIGNAL,CHAIN_SIGNAL}, while the rssi field is an
average. Fix up the assignments and set the correct STA_INFO bits. This
lets userspace know that the average RSSI is part of the station info.
Fixes: cae355dc90db ("brcmfmac: Add RSSI information to get_station.")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210506132010.3964484-2-alsi@bang-olufsen.dk
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 36 ++++++++++---------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index afa75cb83221..d8822a01d277 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -2767,8 +2767,9 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
struct brcmf_sta_info_le sta_info_le;
u32 sta_flags;
u32 is_tdls_peer;
- s32 total_rssi;
- s32 count_rssi;
+ s32 total_rssi_avg = 0;
+ s32 total_rssi = 0;
+ s32 count_rssi = 0;
int rssi;
u32 i;
@@ -2834,24 +2835,27 @@ brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES);
sinfo->rx_bytes = le64_to_cpu(sta_info_le.rx_tot_bytes);
}
- total_rssi = 0;
- count_rssi = 0;
for (i = 0; i < BRCMF_ANT_MAX; i++) {
- if (sta_info_le.rssi[i]) {
- sinfo->chains |= BIT(count_rssi);
- sinfo->chain_signal_avg[count_rssi] =
- sta_info_le.rssi[i];
- sinfo->chain_signal[count_rssi] =
- sta_info_le.rssi[i];
- total_rssi += sta_info_le.rssi[i];
- count_rssi++;
- }
+ if (sta_info_le.rssi[i] == 0 ||
+ sta_info_le.rx_lastpkt_rssi[i] == 0)
+ continue;
+ sinfo->chains |= BIT(count_rssi);
+ sinfo->chain_signal[count_rssi] =
+ sta_info_le.rx_lastpkt_rssi[i];
+ sinfo->chain_signal_avg[count_rssi] =
+ sta_info_le.rssi[i];
+ total_rssi += sta_info_le.rx_lastpkt_rssi[i];
+ total_rssi_avg += sta_info_le.rssi[i];
+ count_rssi++;
}
if (count_rssi) {
- sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL);
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
- total_rssi /= count_rssi;
- sinfo->signal = total_rssi;
+ sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
+ sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL);
+ sinfo->filled |=
+ BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL_AVG);
+ sinfo->signal = total_rssi / count_rssi;
+ sinfo->signal_avg = total_rssi_avg / count_rssi;
} else if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
&ifp->vif->sme_state)) {
memset(&scb_val, 0, sizeof(scb_val));
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 410/700] brcmfmac: Fix a double-free in brcmf_sdio_bus_reset
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (408 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 409/700] brcmfmac: correctly report average RSSI in station info Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 411/700] brcmfmac: Delete second brcm folder hierarchy Greg Kroah-Hartman
` (295 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tong Tiangen, Arend van Spriel,
Kalle Valo, Sasha Levin
From: Tong Tiangen <tongtiangen@huawei.com>
[ Upstream commit 7ea7a1e05c7ff5ffc9f9ec1f0849f6ceb7fcd57c ]
brcmf_sdiod_remove has been called inside brcmf_sdiod_probe when fails,
so there's no need to call another one. Otherwise, sdiodev->freezer
would be double freed.
Fixes: 7836102a750a ("brcmfmac: reset SDIO bus on a firmware crash")
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210601100128.69561-1-tongtiangen@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 16ed325795a8..3a1c98a046f0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4162,7 +4162,6 @@ static int brcmf_sdio_bus_reset(struct device *dev)
if (ret) {
brcmf_err("Failed to probe after sdio device reset: ret %d\n",
ret);
- brcmf_sdiod_remove(sdiodev);
}
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 411/700] brcmfmac: Delete second brcm folder hierarchy
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (409 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 410/700] brcmfmac: Fix a double-free in brcmf_sdio_bus_reset Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 412/700] brcmsmac: mac80211_if: Fix a resource leak in an error handling path Greg Kroah-Hartman
` (294 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Matthias Brugger, Hans de Goede,
Kalle Valo, Sasha Levin
From: Matthias Brugger <mbrugger@suse.com>
[ Upstream commit 4a26aafe4886a4ec9965171c280ce16df30dc362 ]
BRCMF_FW_DEFAULT_PATH already defines the brcm folder, delete the second
folder to match with Linux firmware repository layout.
Fixes: 75729e110e68 ("brcmfmac: expose firmware config files through modinfo")
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210602144305.4481-1-matthias.bgg@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 3a1c98a046f0..faf5f8e5eee3 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -626,8 +626,8 @@ BRCMF_FW_DEF(4373, "brcmfmac4373-sdio");
BRCMF_FW_DEF(43012, "brcmfmac43012-sdio");
/* firmware config files */
-MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac*-sdio.*.txt");
-MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcm/brcmfmac*-pcie.*.txt");
+MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcmfmac*-sdio.*.txt");
+MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcmfmac*-pcie.*.txt");
static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = {
BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143),
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 412/700] brcmsmac: mac80211_if: Fix a resource leak in an error handling path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (410 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 411/700] brcmfmac: Delete second brcm folder hierarchy Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 413/700] cw1200: Revert unnecessary patches that fix unreal use-after-free bugs Greg Kroah-Hartman
` (293 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Arend van Spriel,
Kalle Valo, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 9a25344d5177c2b9285532236dc3d10a091f39a8 ]
If 'brcms_attach()' fails, we must undo the previous 'ieee80211_alloc_hw()'
as already done in the remove function.
Fixes: 5b435de0d786 ("net: wireless: add brcm80211 drivers")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/8fbc171a1a493b38db5a6f0873c6021fca026a6c.1620852921.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
index 39f3af2d0439..eadac0f5590f 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
@@ -1220,6 +1220,7 @@ static int brcms_bcma_probe(struct bcma_device *pdev)
{
struct brcms_info *wl;
struct ieee80211_hw *hw;
+ int ret;
dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
@@ -1244,11 +1245,16 @@ static int brcms_bcma_probe(struct bcma_device *pdev)
wl = brcms_attach(pdev);
if (!wl) {
pr_err("%s: brcms_attach failed!\n", __func__);
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_free_ieee80211;
}
brcms_led_register(wl);
return 0;
+
+err_free_ieee80211:
+ ieee80211_free_hw(hw);
+ return ret;
}
static int brcms_suspend(struct bcma_device *pdev)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 413/700] cw1200: Revert unnecessary patches that fix unreal use-after-free bugs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (411 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 412/700] brcmsmac: mac80211_if: Fix a resource leak in an error handling path Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 414/700] ath11k: Fix an error handling path in ath11k_core_fetch_board_data_api_n() Greg Kroah-Hartman
` (292 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hang Zhang, Jia-Ju Bai, Kalle Valo,
Sasha Levin
From: Hang Zhang <zh.nvgt@gmail.com>
[ Upstream commit 3f60f4685699aa6006e58e424637e8e413e0a94d ]
A previous commit 4f68ef64cd7f ("cw1200: Fix concurrency
use-after-free bugs in cw1200_hw_scan()") tried to fix a seemingly
use-after-free bug between cw1200_bss_info_changed() and
cw1200_hw_scan(), where the former frees a sk_buff pointed
to by frame.skb, and the latter accesses the sk_buff
pointed to by frame.skb. However, this issue should be a
false alarm because:
(1) "frame.skb" is not a shared variable between the above
two functions, because "frame" is a local function variable,
each of the two functions has its own local "frame" - they
just happen to have the same variable name.
(2) the sk_buff(s) pointed to by these two "frame.skb" are
also two different object instances, they are individually
allocated by different dev_alloc_skb() within the two above
functions. To free one object instance will not invalidate
the access of another different one.
Based on these facts, the previous commit should be unnecessary.
Moreover, it also introduced a missing unlock which was
addressed in a subsequent commit 51c8d24101c7 ("cw1200: fix missing
unlock on error in cw1200_hw_scan()"). Now that the
original use-after-free is unreal, these two commits should
be reverted. This patch performs the reversion.
Fixes: 4f68ef64cd7f ("cw1200: Fix concurrency use-after-free bugs in cw1200_hw_scan()")
Fixes: 51c8d24101c7 ("cw1200: fix missing unlock on error in cw1200_hw_scan()")
Signed-off-by: Hang Zhang <zh.nvgt@gmail.com>
Acked-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210521223238.25020-1-zh.nvgt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/st/cw1200/scan.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/st/cw1200/scan.c b/drivers/net/wireless/st/cw1200/scan.c
index 988581cc134b..1f856fbbc0ea 100644
--- a/drivers/net/wireless/st/cw1200/scan.c
+++ b/drivers/net/wireless/st/cw1200/scan.c
@@ -75,30 +75,27 @@ int cw1200_hw_scan(struct ieee80211_hw *hw,
if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
return -EINVAL;
- /* will be unlocked in cw1200_scan_work() */
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
-
frame.skb = ieee80211_probereq_get(hw, priv->vif->addr, NULL, 0,
req->ie_len);
- if (!frame.skb) {
- mutex_unlock(&priv->conf_mutex);
- up(&priv->scan.lock);
+ if (!frame.skb)
return -ENOMEM;
- }
if (req->ie_len)
skb_put_data(frame.skb, req->ie, req->ie_len);
+ /* will be unlocked in cw1200_scan_work() */
+ down(&priv->scan.lock);
+ mutex_lock(&priv->conf_mutex);
+
ret = wsm_set_template_frame(priv, &frame);
if (!ret) {
/* Host want to be the probe responder. */
ret = wsm_set_probe_responder(priv, true);
}
if (ret) {
- dev_kfree_skb(frame.skb);
mutex_unlock(&priv->conf_mutex);
up(&priv->scan.lock);
+ dev_kfree_skb(frame.skb);
return ret;
}
@@ -120,8 +117,8 @@ int cw1200_hw_scan(struct ieee80211_hw *hw,
++priv->scan.n_ssids;
}
- dev_kfree_skb(frame.skb);
mutex_unlock(&priv->conf_mutex);
+ dev_kfree_skb(frame.skb);
queue_work(priv->workqueue, &priv->scan.work);
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 414/700] ath11k: Fix an error handling path in ath11k_core_fetch_board_data_api_n()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (412 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 413/700] cw1200: Revert unnecessary patches that fix unreal use-after-free bugs Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 415/700] ath10k: Fix an error code in ath10k_add_interface() Greg Kroah-Hartman
` (291 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Kalle Valo, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 515bda1d1e51c64edf2a384a58801f85a80a3f2d ]
All error paths but this one 'goto err' in order to release some
resources.
Fix this.
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/e959eb544f3cb04258507d8e25a6f12eab126bde.1621676864.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath11k/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 350b7913622c..b55b6289eeb1 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -445,7 +445,8 @@ static int ath11k_core_fetch_board_data_api_n(struct ath11k_base *ab,
if (len < ALIGN(ie_len, 4)) {
ath11k_err(ab, "invalid length for board ie_id %d ie_len %zu len %zu\n",
ie_id, ie_len, len);
- return -EINVAL;
+ ret = -EINVAL;
+ goto err;
}
switch (ie_id) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 415/700] ath10k: Fix an error code in ath10k_add_interface()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (413 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 414/700] ath11k: Fix an error handling path in ath11k_core_fetch_board_data_api_n() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 416/700] ath11k: send beacon template after vdev_start/restart during csa Greg Kroah-Hartman
` (290 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Abaci Robot, Yang Li, Kalle Valo,
Sasha Levin
From: Yang Li <yang.lee@linux.alibaba.com>
[ Upstream commit e9ca70c735ce66fc6a0e02c8b6958434f74ef8de ]
When the code execute this if statement, the value of ret is 0.
However, we can see from the ath10k_warn() log that the value of
ret should be -EINVAL.
Clean up smatch warning:
drivers/net/wireless/ath/ath10k/mac.c:5596 ath10k_add_interface() warn:
missing error code 'ret'
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Fixes: ccec9038c721 ("ath10k: enable raw encap mode and software crypto engine")
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1621939577-62218-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath10k/mac.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index bb6c5ee43ac0..def52df829d4 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -5590,6 +5590,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
if (arvif->nohwcrypt &&
!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
+ ret = -EINVAL;
ath10k_warn(ar, "cryptmode module param needed for sw crypto\n");
goto err;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 416/700] ath11k: send beacon template after vdev_start/restart during csa
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (414 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 415/700] ath10k: Fix an error code in ath10k_add_interface() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 417/700] wil6210: remove erroneous wiphy locking Greg Kroah-Hartman
` (289 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Seevalamuthu Mariappan,
Sven Eckelmann, Kalle Valo, Sasha Levin
From: Seevalamuthu Mariappan <seevalam@codeaurora.org>
[ Upstream commit 979ebc54cf13bd1e3eb6e21766d208d5de984fb8 ]
Firmware has added assert if beacon template is received after
vdev_down. Firmware expects beacon template after vdev_start
and before vdev_up. This change is needed to support MBSSID EMA
cases in firmware.
Hence, Change the sequence in ath11k as expected from firmware.
This new change is not causing any issues with older
firmware.
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1.r3-00011-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1.r4-00008-QCAHKSWPL_SILICONZ-1
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
[sven@narfation.org: added tested-on/fixes information]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210525133028.2805615-1-sven@narfation.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/ath11k/mac.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 7ad0383affcb..a0e7bc6dd8c7 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -5311,11 +5311,6 @@ ath11k_mac_update_vif_chan(struct ath11k *ar,
if (WARN_ON(!arvif->is_up))
continue;
- ret = ath11k_mac_setup_bcn_tmpl(arvif);
- if (ret)
- ath11k_warn(ab, "failed to update bcn tmpl during csa: %d\n",
- ret);
-
ret = ath11k_mac_vdev_restart(arvif, &vifs[i].new_ctx->def);
if (ret) {
ath11k_warn(ab, "failed to restart vdev %d: %d\n",
@@ -5323,6 +5318,11 @@ ath11k_mac_update_vif_chan(struct ath11k *ar,
continue;
}
+ ret = ath11k_mac_setup_bcn_tmpl(arvif);
+ if (ret)
+ ath11k_warn(ab, "failed to update bcn tmpl during csa: %d\n",
+ ret);
+
ret = ath11k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
arvif->bssid);
if (ret) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 417/700] wil6210: remove erroneous wiphy locking
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (415 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 416/700] ath11k: send beacon template after vdev_start/restart during csa Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 418/700] netlabel: Fix memory leak in netlbl_mgmt_add_common Greg Kroah-Hartman
` (288 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Johannes Berg, Kalle Valo, Sasha Levin
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit 8f78caa2264ece71c2e207cba023f28ab6665138 ]
We already hold the wiphy lock in all cases when we get
here, so this would deadlock, remove the erroneous locking.
Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210426212929.83f1de07c2cd.I630a2a00eff185ba0452324b3d3f645e01128a95@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/ath/wil6210/cfg80211.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 6746fd206d2a..1ff2679963f0 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -2842,9 +2842,7 @@ void wil_p2p_wdev_free(struct wil6210_priv *wil)
wil->radio_wdev = wil->main_ndev->ieee80211_ptr;
mutex_unlock(&wil->vif_mutex);
if (p2p_wdev) {
- wiphy_lock(wil->wiphy);
cfg80211_unregister_wdev(p2p_wdev);
- wiphy_unlock(wil->wiphy);
kfree(p2p_wdev);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 418/700] netlabel: Fix memory leak in netlbl_mgmt_add_common
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (416 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 417/700] wil6210: remove erroneous wiphy locking Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 419/700] RDMA/mlx5: Dont add slave port to unaffiliated list Greg Kroah-Hartman
` (287 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Liu Shixin,
David S. Miller, Sasha Levin
From: Liu Shixin <liushixin2@huawei.com>
[ Upstream commit b8f6b0522c298ae9267bd6584e19b942a0636910 ]
Hulk Robot reported memory leak in netlbl_mgmt_add_common.
The problem is non-freed map in case of netlbl_domhsh_add() failed.
BUG: memory leak
unreferenced object 0xffff888100ab7080 (size 96):
comm "syz-executor537", pid 360, jiffies 4294862456 (age 22.678s)
hex dump (first 32 bytes):
05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
fe 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ................
backtrace:
[<0000000008b40026>] netlbl_mgmt_add_common.isra.0+0xb2a/0x1b40
[<000000003be10950>] netlbl_mgmt_add+0x271/0x3c0
[<00000000c70487ed>] genl_family_rcv_msg_doit.isra.0+0x20e/0x320
[<000000001f2ff614>] genl_rcv_msg+0x2bf/0x4f0
[<0000000089045792>] netlink_rcv_skb+0x134/0x3d0
[<0000000020e96fdd>] genl_rcv+0x24/0x40
[<0000000042810c66>] netlink_unicast+0x4a0/0x6a0
[<000000002e1659f0>] netlink_sendmsg+0x789/0xc70
[<000000006e43415f>] sock_sendmsg+0x139/0x170
[<00000000680a73d7>] ____sys_sendmsg+0x658/0x7d0
[<0000000065cbb8af>] ___sys_sendmsg+0xf8/0x170
[<0000000019932b6c>] __sys_sendmsg+0xd3/0x190
[<00000000643ac172>] do_syscall_64+0x37/0x90
[<000000009b79d6dc>] entry_SYSCALL_64_after_hwframe+0x44/0xae
Fixes: 63c416887437 ("netlabel: Add network address selectors to the NetLabel/LSM domain mapping")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netlabel/netlabel_mgmt.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index df1b41ed73fd..19e4fffccf78 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -76,6 +76,7 @@ static const struct nla_policy netlbl_mgmt_genl_policy[NLBL_MGMT_A_MAX + 1] = {
static int netlbl_mgmt_add_common(struct genl_info *info,
struct netlbl_audit *audit_info)
{
+ void *pmap = NULL;
int ret_val = -EINVAL;
struct netlbl_domaddr_map *addrmap = NULL;
struct cipso_v4_doi *cipsov4 = NULL;
@@ -175,6 +176,7 @@ static int netlbl_mgmt_add_common(struct genl_info *info,
ret_val = -ENOMEM;
goto add_free_addrmap;
}
+ pmap = map;
map->list.addr = addr->s_addr & mask->s_addr;
map->list.mask = mask->s_addr;
map->list.valid = 1;
@@ -183,10 +185,8 @@ static int netlbl_mgmt_add_common(struct genl_info *info,
map->def.cipso = cipsov4;
ret_val = netlbl_af4list_add(&map->list, &addrmap->list4);
- if (ret_val != 0) {
- kfree(map);
- goto add_free_addrmap;
- }
+ if (ret_val != 0)
+ goto add_free_map;
entry->family = AF_INET;
entry->def.type = NETLBL_NLTYPE_ADDRSELECT;
@@ -223,6 +223,7 @@ static int netlbl_mgmt_add_common(struct genl_info *info,
ret_val = -ENOMEM;
goto add_free_addrmap;
}
+ pmap = map;
map->list.addr = *addr;
map->list.addr.s6_addr32[0] &= mask->s6_addr32[0];
map->list.addr.s6_addr32[1] &= mask->s6_addr32[1];
@@ -235,10 +236,8 @@ static int netlbl_mgmt_add_common(struct genl_info *info,
map->def.calipso = calipso;
ret_val = netlbl_af6list_add(&map->list, &addrmap->list6);
- if (ret_val != 0) {
- kfree(map);
- goto add_free_addrmap;
- }
+ if (ret_val != 0)
+ goto add_free_map;
entry->family = AF_INET6;
entry->def.type = NETLBL_NLTYPE_ADDRSELECT;
@@ -248,10 +247,12 @@ static int netlbl_mgmt_add_common(struct genl_info *info,
ret_val = netlbl_domhsh_add(entry, audit_info);
if (ret_val != 0)
- goto add_free_addrmap;
+ goto add_free_map;
return 0;
+add_free_map:
+ kfree(pmap);
add_free_addrmap:
kfree(addrmap);
add_doi_put_def:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 419/700] RDMA/mlx5: Dont add slave port to unaffiliated list
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (417 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 418/700] netlabel: Fix memory leak in netlbl_mgmt_add_common Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 420/700] netfilter: nft_exthdr: check for IPv6 packet before further processing Greg Kroah-Hartman
` (286 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Leon Romanovsky,
Jason Gunthorpe, Sasha Levin
From: Leon Romanovsky <leonro@nvidia.com>
[ Upstream commit 7ce6095e3bff8e20ce018b050960b527e298f7df ]
The mlx5_ib_bind_slave_port() doesn't remove multiport device from the
unaffiliated list, but mlx5_ib_unbind_slave_port() did it. This unbalanced
flow caused to the situation where mlx5_ib_unaffiliated_port_list was
changed during iteration.
Fixes: 32f69e4be269 ("{net, IB}/mlx5: Manage port association for multiport RoCE")
Link: https://lore.kernel.org/r/2726e6603b1e6ecfe76aa5a12a063af72173bcf7.1622477058.git.leonro@nvidia.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/mlx5/main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 59ffbbdda317..21b230096cc1 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3393,8 +3393,6 @@ static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
port->mp.mpi = NULL;
- list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
-
spin_unlock(&port->mp.mpi_lock);
err = mlx5_nic_vport_unaffiliate_multiport(mpi->mdev);
@@ -3542,6 +3540,8 @@ static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev)
} else {
mlx5_ib_dbg(dev, "unbinding port_num: %d\n", i + 1);
mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
+ list_add_tail(&dev->port[i].mp.mpi->list,
+ &mlx5_ib_unaffiliated_port_list);
}
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 420/700] netfilter: nft_exthdr: check for IPv6 packet before further processing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (418 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 419/700] RDMA/mlx5: Dont add slave port to unaffiliated list Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 421/700] netfilter: nft_osf: check for TCP " Greg Kroah-Hartman
` (285 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pablo Neira Ayuso, Sasha Levin
From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit cdd73cc545c0fb9b1a1f7b209f4f536e7990cff4 ]
ipv6_find_hdr() does not validate that this is an IPv6 packet. Add a
sanity check for calling ipv6_find_hdr() to make sure an IPv6 packet
is passed for parsing.
Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nft_exthdr.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c
index f64f0017e9a5..670dd146fb2b 100644
--- a/net/netfilter/nft_exthdr.c
+++ b/net/netfilter/nft_exthdr.c
@@ -42,6 +42,9 @@ static void nft_exthdr_ipv6_eval(const struct nft_expr *expr,
unsigned int offset = 0;
int err;
+ if (pkt->skb->protocol != htons(ETH_P_IPV6))
+ goto err;
+
err = ipv6_find_hdr(pkt->skb, &offset, priv->type, NULL, NULL);
if (priv->flags & NFT_EXTHDR_F_PRESENT) {
nft_reg_store8(dest, err >= 0);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 421/700] netfilter: nft_osf: check for TCP packet before further processing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (419 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 420/700] netfilter: nft_exthdr: check for IPv6 packet before further processing Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 422/700] netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols Greg Kroah-Hartman
` (284 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pablo Neira Ayuso, kernel test robot,
Sasha Levin
From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit 8f518d43f89ae00b9cf5460e10b91694944ca1a8 ]
The osf expression only supports for TCP packets, add a upfront sanity
check to skip packet parsing if this is not a TCP packet.
Fixes: b96af92d6eaf ("netfilter: nf_tables: implement Passive OS fingerprint module in nft_osf")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nft_osf.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/netfilter/nft_osf.c b/net/netfilter/nft_osf.c
index ac61f708b82d..d82677e83400 100644
--- a/net/netfilter/nft_osf.c
+++ b/net/netfilter/nft_osf.c
@@ -28,6 +28,11 @@ static void nft_osf_eval(const struct nft_expr *expr, struct nft_regs *regs,
struct nf_osf_data data;
struct tcphdr _tcph;
+ if (pkt->tprot != IPPROTO_TCP) {
+ regs->verdict.code = NFT_BREAK;
+ return;
+ }
+
tcp = skb_header_pointer(skb, ip_hdrlen(skb),
sizeof(struct tcphdr), &_tcph);
if (!tcp) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 422/700] netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (420 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 421/700] netfilter: nft_osf: check for TCP " Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 423/700] RDMA/rxe: Fix qp reference counting for atomic ops Greg Kroah-Hartman
` (283 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pablo Neira Ayuso, Sasha Levin
From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit 52f0f4e178c757b3d356087376aad8bd77271828 ]
Add unfront check for TCP and UDP packets before performing further
processing.
Fixes: 4ed8eb6570a4 ("netfilter: nf_tables: Add native tproxy support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nft_tproxy.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nft_tproxy.c b/net/netfilter/nft_tproxy.c
index 43a5a780a6d3..37c728bdad41 100644
--- a/net/netfilter/nft_tproxy.c
+++ b/net/netfilter/nft_tproxy.c
@@ -30,6 +30,12 @@ static void nft_tproxy_eval_v4(const struct nft_expr *expr,
__be16 tport = 0;
struct sock *sk;
+ if (pkt->tprot != IPPROTO_TCP &&
+ pkt->tprot != IPPROTO_UDP) {
+ regs->verdict.code = NFT_BREAK;
+ return;
+ }
+
hp = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_hdr), &_hdr);
if (!hp) {
regs->verdict.code = NFT_BREAK;
@@ -91,7 +97,8 @@ static void nft_tproxy_eval_v6(const struct nft_expr *expr,
memset(&taddr, 0, sizeof(taddr));
- if (!pkt->tprot_set) {
+ if (pkt->tprot != IPPROTO_TCP &&
+ pkt->tprot != IPPROTO_UDP) {
regs->verdict.code = NFT_BREAK;
return;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 423/700] RDMA/rxe: Fix qp reference counting for atomic ops
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (421 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 422/700] netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 424/700] selftests/bpf: Whitelist test_progs.h from .gitignore Greg Kroah-Hartman
` (282 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zhu Yanjun, Bob Pearson,
Jason Gunthorpe, Sasha Levin
From: Bob Pearson <rpearsonhpe@gmail.com>
[ Upstream commit 15ae1375ea91ae2dee6f12d71a79d8c0a10a30bf ]
Currently the rdma_rxe driver attempts to protect atomic responder
resources by taking a reference to the qp which is only freed when the
resource is recycled for a new read or atomic operation. This means that
in normal circumstances there is almost always an extra qp reference once
an atomic operation has been executed which prevents cleaning up the qp
and associated pd and cqs when the qp is destroyed.
This patch removes the call to rxe_add_ref() in send_atomic_ack() and the
call to rxe_drop_ref() in free_rd_atomic_resource(). If the qp is
destroyed while a peer is retrying an atomic op it will cause the
operation to fail which is acceptable.
Link: https://lore.kernel.org/r/20210604230558.4812-1-rpearsonhpe@gmail.com
Reported-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Fixes: 86af61764151 ("IB/rxe: remove unnecessary skb_clone")
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/sw/rxe/rxe_qp.c | 1 -
drivers/infiniband/sw/rxe/rxe_resp.c | 2 --
2 files changed, 3 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
index b0f350d674fd..93a41ebda1a8 100644
--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -136,7 +136,6 @@ static void free_rd_atomic_resources(struct rxe_qp *qp)
void free_rd_atomic_resource(struct rxe_qp *qp, struct resp_res *res)
{
if (res->type == RXE_ATOMIC_MASK) {
- rxe_drop_ref(qp);
kfree_skb(res->atomic.skb);
} else if (res->type == RXE_READ_MASK) {
if (res->read.mr)
diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c
index 8e237b623b31..ae97bebc0f34 100644
--- a/drivers/infiniband/sw/rxe/rxe_resp.c
+++ b/drivers/infiniband/sw/rxe/rxe_resp.c
@@ -966,8 +966,6 @@ static int send_atomic_ack(struct rxe_qp *qp, struct rxe_pkt_info *pkt,
goto out;
}
- rxe_add_ref(qp);
-
res = &qp->resp.resources[qp->resp.res_head];
free_rd_atomic_resource(qp, res);
rxe_advance_resp_resource(qp);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 424/700] selftests/bpf: Whitelist test_progs.h from .gitignore
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (422 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 423/700] RDMA/rxe: Fix qp reference counting for atomic ops Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 425/700] xsk: Fix missing validation for skb and unaligned mode Greg Kroah-Hartman
` (281 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Daniel Xu, Andrii Nakryiko, Sasha Levin
From: Daniel Xu <dxu@dxuuu.xyz>
[ Upstream commit 809ed84de8b3f2fd7b1d06efb94bf98fd318a7d7 ]
Somehow test_progs.h was being included by the existing rule:
/test_progs*
This is bad because:
1) test_progs.h is a checked in file
2) grep-like tools like ripgrep[0] respect gitignore and
test_progs.h was being hidden from searches
[0]: https://github.com/BurntSushi/ripgrep
Fixes: 74b5a5968fe8 ("selftests/bpf: Replace test_progs and test_maps w/ general rule")
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/a46f64944bf678bc652410ca6028d3450f4f7f4b.1623880296.git.dxu@dxuuu.xyz
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/bpf/.gitignore | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index c0c48fdb9ac1..76d495fe3a17 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -8,6 +8,7 @@ FEATURE-DUMP.libbpf
fixdep
test_dev_cgroup
/test_progs*
+!test_progs.h
test_verifier_log
feature
test_sock
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 425/700] xsk: Fix missing validation for skb and unaligned mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (423 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 424/700] selftests/bpf: Whitelist test_progs.h from .gitignore Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 426/700] xsk: Fix broken Tx ring validation Greg Kroah-Hartman
` (280 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Magnus Karlsson, Daniel Borkmann,
Björn Töpel, Sasha Levin
From: Magnus Karlsson <magnus.karlsson@intel.com>
[ Upstream commit 2f99619820c2269534eb2c0cde44870313c6d353 ]
Fix a missing validation of a Tx descriptor when executing in skb mode
and the umem is in unaligned mode. A descriptor could point to a
buffer straddling the end of the umem, thus effectively tricking the
kernel to read outside the allowed umem region. This could lead to a
kernel crash if that part of memory is not mapped.
In zero-copy mode, the descriptor validation code rejects such
descriptors by checking a bit in the DMA address that tells us if the
next page is physically contiguous or not. For the last page in the
umem, this bit is not set, therefore any descriptor pointing to a
packet straddling this last page boundary will be rejected. However,
the skb path does not use this bit since it copies out data and can do
so to two different pages. (It also does not have the array of DMA
address, so it cannot even store this bit.) The code just returned
that the packet is always physically contiguous. But this is
unfortunately also returned for the last page in the umem, which means
that packets that cross the end of the umem are being allowed, which
they should not be.
Fix this by introducing a check for this in the SKB path only, not
penalizing the zero-copy path.
Fixes: 2b43470add8c ("xsk: Introduce AF_XDP buffer allocation API")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/bpf/20210617092255.3487-1-magnus.karlsson@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/xsk_buff_pool.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
index eaa8386dbc63..7a9a23e7a604 100644
--- a/include/net/xsk_buff_pool.h
+++ b/include/net/xsk_buff_pool.h
@@ -147,11 +147,16 @@ static inline bool xp_desc_crosses_non_contig_pg(struct xsk_buff_pool *pool,
{
bool cross_pg = (addr & (PAGE_SIZE - 1)) + len > PAGE_SIZE;
- if (pool->dma_pages_cnt && cross_pg) {
+ if (likely(!cross_pg))
+ return false;
+
+ if (pool->dma_pages_cnt) {
return !(pool->dma_pages[addr >> PAGE_SHIFT] &
XSK_NEXT_PG_CONTIG_MASK);
}
- return false;
+
+ /* skb path */
+ return addr + len > pool->addrs_cnt;
}
static inline u64 xp_aligned_extract_addr(struct xsk_buff_pool *pool, u64 addr)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 426/700] xsk: Fix broken Tx ring validation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (424 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 425/700] xsk: Fix missing validation for skb and unaligned mode Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 427/700] bpf: Fix libelf endian handling in resolv_btfids Greg Kroah-Hartman
` (279 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Magnus Karlsson, Daniel Borkmann,
Xuan Zhuo, Björn Töpel, Sasha Levin
From: Magnus Karlsson <magnus.karlsson@intel.com>
[ Upstream commit f654fae47e83e56b454fbbfd0af0a4f232e356d6 ]
Fix broken Tx ring validation for AF_XDP. The commit under the Fixes
tag, fixed an off-by-one error in the validation but introduced
another error. Descriptors are now let through even if they straddle a
chunk boundary which they are not allowed to do in aligned mode. Worse
is that they are let through even if they straddle the end of the umem
itself, tricking the kernel to read data outside the allowed umem
region which might or might not be mapped at all.
Fix this by reintroducing the old code, but subtract the length by one
to fix the off-by-one error that the original patch was
addressing. The test chunk != chunk_end makes sure packets do not
straddle chunk boundraries. Note that packets of zero length are
allowed in the interface, therefore the test if the length is
non-zero.
Fixes: ac31565c2193 ("xsk: Fix for xp_aligned_validate_desc() when len == chunk_size")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/bpf/20210618075805.14412-1-magnus.karlsson@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/xdp/xsk_queue.h | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/net/xdp/xsk_queue.h b/net/xdp/xsk_queue.h
index 40f359bf2044..35938dfa784d 100644
--- a/net/xdp/xsk_queue.h
+++ b/net/xdp/xsk_queue.h
@@ -128,12 +128,15 @@ static inline bool xskq_cons_read_addr_unchecked(struct xsk_queue *q, u64 *addr)
static inline bool xp_aligned_validate_desc(struct xsk_buff_pool *pool,
struct xdp_desc *desc)
{
- u64 chunk;
-
- if (desc->len > pool->chunk_size)
- return false;
+ u64 chunk, chunk_end;
chunk = xp_aligned_extract_addr(pool, desc->addr);
+ if (likely(desc->len)) {
+ chunk_end = xp_aligned_extract_addr(pool, desc->addr + desc->len - 1);
+ if (chunk != chunk_end)
+ return false;
+ }
+
if (chunk >= pool->addrs_cnt)
return false;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 427/700] bpf: Fix libelf endian handling in resolv_btfids
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (425 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 426/700] xsk: Fix broken Tx ring validation Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 428/700] RDMA/rtrs-srv: Set minimal max_send_wr and max_recv_wr Greg Kroah-Hartman
` (278 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Tony Ambardar, Daniel Borkmann,
Jiri Olsa, Frank Eigler, Mark Wielaard, Jiri Olsa, Yonghong Song,
Sasha Levin
From: Tony Ambardar <tony.ambardar@gmail.com>
[ Upstream commit 61e8aeda9398925f8c6fc290585bdd9727d154c4 ]
The vmlinux ".BTF_ids" ELF section is declared in btf_ids.h to hold a list
of zero-filled BTF IDs, which is then patched at link-time with correct
values by resolv_btfids. The section is flagged as "allocable" to preclude
compression, but notably the section contents (BTF IDs) are untyped.
When patching the BTF IDs, resolve_btfids writes in host-native endianness
and relies on libelf for any required translation on reading and updating
vmlinux. However, since the type of the .BTF_ids section content defaults
to ELF_T_BYTE (i.e. unsigned char), no translation occurs. This results in
incorrect patched values when cross-compiling to non-native endianness,
and can manifest as kernel Oops and test failures which are difficult to
troubleshoot [1].
Explicitly set the type of patched data to ELF_T_WORD, the architecture-
neutral ELF type corresponding to the u32 BTF IDs. This enables libelf to
transparently perform any needed endian conversions.
Fixes: fbbb68de80a4 ("bpf: Add resolve_btfids tool to resolve BTF IDs in ELF object")
Signed-off-by: Tony Ambardar <Tony.Ambardar@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frank Eigler <fche@redhat.com>
Cc: Mark Wielaard <mark@klomp.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/CAPGftE_eY-Zdi3wBcgDfkz_iOr1KF10n=9mJHm1_a_PykcsoeA@mail.gmail.com [1]
Link: https://lore.kernel.org/bpf/20210618061404.818569-1-Tony.Ambardar@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/bpf/resolve_btfids/main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/bpf/resolve_btfids/main.c b/tools/bpf/resolve_btfids/main.c
index 80d966cfcaa1..7ce4558a932f 100644
--- a/tools/bpf/resolve_btfids/main.c
+++ b/tools/bpf/resolve_btfids/main.c
@@ -656,6 +656,9 @@ static int symbols_patch(struct object *obj)
if (sets_patch(obj))
return -1;
+ /* Set type to ensure endian translation occurs. */
+ obj->efile.idlist->d_type = ELF_T_WORD;
+
elf_flagdata(obj->efile.idlist, ELF_C_SET, ELF_F_DIRTY);
err = elf_update(obj->efile.elf, ELF_C_WRITE);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 428/700] RDMA/rtrs-srv: Set minimal max_send_wr and max_recv_wr
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (426 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 427/700] bpf: Fix libelf endian handling in resolv_btfids Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 429/700] samples/bpf: Fix Segmentation fault for xdp_redirect command Greg Kroah-Hartman
` (277 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jack Wang, Md Haris Iqbal, Gioh Kim,
Leon Romanovsky, Jason Gunthorpe, Sasha Levin
From: Jack Wang <jinpu.wang@cloud.ionos.com>
[ Upstream commit 5e91eabf66c854f16ca2e954e5c68939bc81601e ]
Currently rtrs when create_qp use a coarse numbers (bigger in general),
which leads to hardware create more resources which only waste memory with
no benefits.
For max_send_wr, we don't really need alway max_qp_wr size when creating
qp, reduce it to cq_size.
For max_recv_wr, cq_size is enough.
With the patch when sess_queue_depth=128, per session (2 paths) memory
consumption reduced from 188 MB to 65MB
When always_invalidate is enabled, we need send more wr, so treat it
special.
Fixes: 9cb837480424e ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20210614090337.29557-2-jinpu.wang@ionos.com
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@cloud.ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 38 +++++++++++++++++---------
1 file changed, 25 insertions(+), 13 deletions(-)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
index 8c0acfc48392..57a9d396ab75 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
@@ -1601,7 +1601,7 @@ static int create_con(struct rtrs_srv_sess *sess,
struct rtrs_sess *s = &sess->s;
struct rtrs_srv_con *con;
- u32 cq_size, wr_queue_size;
+ u32 cq_size, max_send_wr, max_recv_wr, wr_limit;
int err, cq_vector;
con = kzalloc(sizeof(*con), GFP_KERNEL);
@@ -1622,30 +1622,42 @@ static int create_con(struct rtrs_srv_sess *sess,
* All receive and all send (each requiring invalidate)
* + 2 for drain and heartbeat
*/
- wr_queue_size = SERVICE_CON_QUEUE_DEPTH * 3 + 2;
- cq_size = wr_queue_size;
+ max_send_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2;
+ max_recv_wr = SERVICE_CON_QUEUE_DEPTH + 2;
+ cq_size = max_send_wr + max_recv_wr;
} else {
- /*
- * If we have all receive requests posted and
- * all write requests posted and each read request
- * requires an invalidate request + drain
- * and qp gets into error state.
- */
- cq_size = srv->queue_depth * 3 + 1;
/*
* In theory we might have queue_depth * 32
* outstanding requests if an unsafe global key is used
* and we have queue_depth read requests each consisting
* of 32 different addresses. div 3 for mlx5.
*/
- wr_queue_size = sess->s.dev->ib_dev->attrs.max_qp_wr / 3;
+ wr_limit = sess->s.dev->ib_dev->attrs.max_qp_wr / 3;
+ /* when always_invlaidate enalbed, we need linv+rinv+mr+imm */
+ if (always_invalidate)
+ max_send_wr =
+ min_t(int, wr_limit,
+ srv->queue_depth * (1 + 4) + 1);
+ else
+ max_send_wr =
+ min_t(int, wr_limit,
+ srv->queue_depth * (1 + 2) + 1);
+
+ max_recv_wr = srv->queue_depth + 1;
+ /*
+ * If we have all receive requests posted and
+ * all write requests posted and each read request
+ * requires an invalidate request + drain
+ * and qp gets into error state.
+ */
+ cq_size = max_send_wr + max_recv_wr;
}
- atomic_set(&con->sq_wr_avail, wr_queue_size);
+ atomic_set(&con->sq_wr_avail, max_send_wr);
cq_vector = rtrs_srv_get_next_cq_vector(sess);
/* TODO: SOFTIRQ can be faster, but be careful with softirq context */
err = rtrs_cq_qp_create(&sess->s, &con->c, 1, cq_vector, cq_size,
- wr_queue_size, wr_queue_size,
+ max_send_wr, max_recv_wr,
IB_POLL_WORKQUEUE);
if (err) {
rtrs_err(s, "rtrs_cq_qp_create(), err: %d\n", err);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 429/700] samples/bpf: Fix Segmentation fault for xdp_redirect command
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (427 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 428/700] RDMA/rtrs-srv: Set minimal max_send_wr and max_recv_wr Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 430/700] samples/bpf: Fix the error return code of xdp_redirects main() Greg Kroah-Hartman
` (276 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wang Hai, Andrii Nakryiko, Sasha Levin
From: Wang Hai <wanghai38@huawei.com>
[ Upstream commit 85102ba58b4125ebad941d7555c3c248b23efd16 ]
A Segmentation fault error is caused when the following command
is executed.
$ sudo ./samples/bpf/xdp_redirect lo
Segmentation fault
This command is missing a device <IFNAME|IFINDEX> as an argument, resulting
in out-of-bounds access from argv.
If the number of devices for the xdp_redirect parameter is not 2,
we should report an error and exit.
Fixes: 24251c264798 ("samples/bpf: add option for native and skb mode for redirect apps")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210616042324.314832-1-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
samples/bpf/xdp_redirect_user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index 41d705c3a1f7..eb876629109a 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_user.c
@@ -130,7 +130,7 @@ int main(int argc, char **argv)
if (!(xdp_flags & XDP_FLAGS_SKB_MODE))
xdp_flags |= XDP_FLAGS_DRV_MODE;
- if (optind == argc) {
+ if (optind + 2 != argc) {
printf("usage: %s <IFNAME|IFINDEX>_IN <IFNAME|IFINDEX>_OUT\n", argv[0]);
return 1;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 430/700] samples/bpf: Fix the error return code of xdp_redirects main()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (428 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 429/700] samples/bpf: Fix Segmentation fault for xdp_redirect command Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 431/700] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
` (275 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wang Hai, Andrii Nakryiko, Sasha Levin
From: Wang Hai <wanghai38@huawei.com>
[ Upstream commit 7c6090ee2a7b3315410cfc83a94c3eb057407b25 ]
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
If bpf_map_update_elem() failed, main() should return a negative error.
Fixes: 832622e6bd18 ("xdp: sample program for new bpf_redirect helper")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210616042534.315097-1-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
samples/bpf/xdp_redirect_user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index eb876629109a..93854e135134 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_user.c
@@ -213,5 +213,5 @@ int main(int argc, char **argv)
poll_stats(2, ifindex_out);
out:
- return 0;
+ return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 431/700] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (429 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 430/700] samples/bpf: Fix the error return code of xdp_redirects main() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 432/700] mt76: fix possible NULL pointer dereference in mt76_tx Greg Kroah-Hartman
` (274 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Machek (CIP),
David S. Miller, Sasha Levin
From: Pavel Machek <pavel@denx.de>
[ Upstream commit bd70957438f0cc4879cbdff8bbc8614bc1cddf49 ]
Commit 0571a753cb07 cancelled delayed work too late, keeping small
race. Cancel work sooner to close it completely.
Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Fixes: 0571a753cb07 ("net: pxa168_eth: Fix a potential data race in pxa168_eth_remove")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/marvell/pxa168_eth.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 3712e1786091..406fdfe968bf 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1533,6 +1533,7 @@ static int pxa168_eth_remove(struct platform_device *pdev)
struct net_device *dev = platform_get_drvdata(pdev);
struct pxa168_eth_private *pep = netdev_priv(dev);
+ cancel_work_sync(&pep->tx_timeout_task);
if (pep->htpr) {
dma_free_coherent(pep->dev->dev.parent, HASH_ADDR_TABLE_SIZE,
pep->htpr, pep->htpr_dma);
@@ -1544,7 +1545,6 @@ static int pxa168_eth_remove(struct platform_device *pdev)
clk_disable_unprepare(pep->clk);
mdiobus_unregister(pep->smi_bus);
mdiobus_free(pep->smi_bus);
- cancel_work_sync(&pep->tx_timeout_task);
unregister_netdev(dev);
free_netdev(dev);
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 432/700] mt76: fix possible NULL pointer dereference in mt76_tx
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (430 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 431/700] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 433/700] mt76: mt7615: fix NULL pointer dereference in tx_prepare_skb() Greg Kroah-Hartman
` (273 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Felix Fietkau, Sasha Levin
From: Lorenzo Bianconi <lorenzo@kernel.org>
[ Upstream commit d7400a2f3e295b8cee692c7a66e10f60015a3c37 ]
Even if this is not a real issue since mt76_tx is never run with wcid set
to NULL, fix a theoretical NULL pointer dereference in mt76_tx routine
Fixes: db9f11d3433f7 ("mt76: store wcid tx rate info in one u32 reduce locking")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/tx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index 451ed60c6296..802e3d733959 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -285,7 +285,7 @@ mt76_tx(struct mt76_phy *phy, struct ieee80211_sta *sta,
skb_set_queue_mapping(skb, qid);
}
- if (!(wcid->tx_info & MT_WCID_TX_INFO_SET))
+ if (wcid && !(wcid->tx_info & MT_WCID_TX_INFO_SET))
ieee80211_get_tx_rates(info->control.vif, sta, skb,
info->control.rates, 1);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 433/700] mt76: mt7615: fix NULL pointer dereference in tx_prepare_skb()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (431 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 432/700] mt76: fix possible NULL pointer dereference in mt76_tx Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 434/700] mt76: mt7921: Dont alter Rx path classifier Greg Kroah-Hartman
` (272 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Felix Fietkau, Sasha Levin
From: Lorenzo Bianconi <lorenzo@kernel.org>
[ Upstream commit 8d3cdc1bbb1d355f0ebef973175ae5fd74286feb ]
Fix theoretical NULL pointer dereference in mt7615_tx_prepare_skb and
mt7663_usb_sdio_tx_prepare_skb routines. This issue has been identified
by code analysis.
Fixes: 6aa4ed7927f11 ("mt76: mt7615: implement DMA support for MT7622")
Fixes: 4bb586bc33b98 ("mt76: mt7663u: sync probe sampling with rate configuration")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c | 5 +++--
drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c | 5 +++--
2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
index 1b4cb145f38e..f2fbf11e0321 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
@@ -133,20 +133,21 @@ int mt7615_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
struct mt76_tx_info *tx_info)
{
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
- struct mt7615_sta *msta = container_of(wcid, struct mt7615_sta, wcid);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
struct ieee80211_key_conf *key = info->control.hw_key;
int pid, id;
u8 *txwi = (u8 *)txwi_ptr;
struct mt76_txwi_cache *t;
+ struct mt7615_sta *msta;
void *txp;
+ msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL;
if (!wcid)
wcid = &dev->mt76.global_wcid;
pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
- if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) {
+ if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) && msta) {
struct mt7615_phy *phy = &dev->phy;
if ((info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY) && mdev->phy2)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
index f8d3673c2cae..7010101f6b14 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
@@ -191,14 +191,15 @@ int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
struct ieee80211_sta *sta,
struct mt76_tx_info *tx_info)
{
- struct mt7615_sta *msta = container_of(wcid, struct mt7615_sta, wcid);
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
struct sk_buff *skb = tx_info->skb;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct mt7615_sta *msta;
int pad;
+ msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL;
if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) &&
- !msta->rate_probe) {
+ msta && !msta->rate_probe) {
/* request to configure sampling rate */
spin_lock_bh(&dev->mt76.lock);
mt7615_mac_set_rates(&dev->phy, msta, &info->control.rates[0],
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 434/700] mt76: mt7921: Dont alter Rx path classifier
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (432 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 433/700] mt76: mt7615: fix NULL pointer dereference in tx_prepare_skb() Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 435/700] mt76: connac: fix WoW with disconnetion and bitmap pattern Greg Kroah-Hartman
` (271 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Sean Wang,
Felix Fietkau, Sasha Levin
From: Sean Wang <sean.wang@mediatek.com>
[ Upstream commit 2c80c02a682aefc073df2cfbb48c77c74579cb4a ]
Keep Rx path classifier the mt7921 firmware prefers to allow frames pass
through MCU.
Fixes: 5c14a5f944b9 ("mt76: mt7921: introduce mt7921e support")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/mediatek/mt76/mt7921/init.c | 18 ------------------
1 file changed, 18 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index a0797cec136e..f9bd907b90fa 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -110,30 +110,12 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
static void
mt7921_mac_init_band(struct mt7921_dev *dev, u8 band)
{
- u32 mask, set;
-
mt76_rmw_field(dev, MT_TMAC_CTCR0(band),
MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
mt76_set(dev, MT_TMAC_CTCR0(band),
MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
MT_TMAC_CTCR0_INS_DDLMT_EN);
- mask = MT_MDP_RCFR0_MCU_RX_MGMT |
- MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR |
- MT_MDP_RCFR0_MCU_RX_CTL_BAR;
- set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) |
- FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) |
- FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF);
- mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set);
-
- mask = MT_MDP_RCFR1_MCU_RX_BYPASS |
- MT_MDP_RCFR1_RX_DROPPED_UCAST |
- MT_MDP_RCFR1_RX_DROPPED_MCAST;
- set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) |
- FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) |
- FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF);
- mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);
-
mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 435/700] mt76: connac: fix WoW with disconnetion and bitmap pattern
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (433 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 434/700] mt76: mt7921: Dont alter Rx path classifier Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 436/700] mt76: mt7921: consider the invalid value for to_rssi Greg Kroah-Hartman
` (270 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, YN Chen, Sean Wang,
Felix Fietkau, Sasha Levin
From: YN Chen <yn.chen@mediatek.com>
[ Upstream commit 193e5f22eeb2a9661bff8bc0d8519e6ded48c807 ]
Update MCU command usage to fix WoW configuration with disconnection
and bitmap pattern and to avoid magic number.
Fixes: ffa1bf97425b ("mt76: mt7921: introduce PM support")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: YN Chen <yn.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 11 +++++++----
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h | 8 ++++++++
2 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index cefd33b74a87..280aee1aa299 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -1732,7 +1732,7 @@ mt76_connac_mcu_set_wow_pattern(struct mt76_dev *dev,
ptlv->index = index;
memcpy(ptlv->pattern, pattern->pattern, pattern->pattern_len);
- memcpy(ptlv->mask, pattern->mask, pattern->pattern_len / 8);
+ memcpy(ptlv->mask, pattern->mask, DIV_ROUND_UP(pattern->pattern_len, 8));
return mt76_mcu_skb_send_msg(dev, skb, MCU_UNI_CMD_SUSPEND, true);
}
@@ -1767,14 +1767,17 @@ mt76_connac_mcu_set_wow_ctrl(struct mt76_phy *phy, struct ieee80211_vif *vif,
};
if (wowlan->magic_pkt)
- req.wow_ctrl_tlv.trigger |= BIT(0);
+ req.wow_ctrl_tlv.trigger |= UNI_WOW_DETECT_TYPE_MAGIC;
if (wowlan->disconnect)
- req.wow_ctrl_tlv.trigger |= BIT(2);
+ req.wow_ctrl_tlv.trigger |= (UNI_WOW_DETECT_TYPE_DISCONNECT |
+ UNI_WOW_DETECT_TYPE_BCN_LOST);
if (wowlan->nd_config) {
mt76_connac_mcu_sched_scan_req(phy, vif, wowlan->nd_config);
- req.wow_ctrl_tlv.trigger |= BIT(5);
+ req.wow_ctrl_tlv.trigger |= UNI_WOW_DETECT_TYPE_SCH_SCAN_HIT;
mt76_connac_mcu_sched_scan_enable(phy, vif, suspend);
}
+ if (wowlan->n_patterns)
+ req.wow_ctrl_tlv.trigger |= UNI_WOW_DETECT_TYPE_BITMAP;
if (mt76_is_mmio(dev))
req.wow_ctrl_tlv.wakeup_hif = WOW_PCIE;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index c1e1df5f7cd7..eea121101b5e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -589,6 +589,14 @@ enum {
UNI_OFFLOAD_OFFLOAD_BMC_RPY_DETECT,
};
+#define UNI_WOW_DETECT_TYPE_MAGIC BIT(0)
+#define UNI_WOW_DETECT_TYPE_ANY BIT(1)
+#define UNI_WOW_DETECT_TYPE_DISCONNECT BIT(2)
+#define UNI_WOW_DETECT_TYPE_GTK_REKEY_FAIL BIT(3)
+#define UNI_WOW_DETECT_TYPE_BCN_LOST BIT(4)
+#define UNI_WOW_DETECT_TYPE_SCH_SCAN_HIT BIT(5)
+#define UNI_WOW_DETECT_TYPE_BITMAP BIT(6)
+
enum {
UNI_SUSPEND_MODE_SETTING,
UNI_SUSPEND_WOW_CTRL,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 436/700] mt76: mt7921: consider the invalid value for to_rssi
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (434 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 435/700] mt76: connac: fix WoW with disconnetion and bitmap pattern Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 437/700] mt76: connac: alaways wake the device before scanning Greg Kroah-Hartman
` (269 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Sean Wang,
Felix Fietkau, Sasha Levin
From: Sean Wang <sean.wang@mediatek.com>
[ Upstream commit edb5aebc1c3db312e74e1dcf75b8626ee5300596 ]
It is possible the RCPI from the certain antenna is an invalid value,
especially packets are receiving while the system is frequently entering
deep sleep mode, so consider calculating RSSI with the reasonable upper
bound to avoid report the wrong value to the mac80211 layer.
Fixes: 163f4d22c118 ("mt76: mt7921: add MAC support")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index ce4eae7f1e44..39be2e396269 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -420,16 +420,19 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1);
status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1);
status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1);
- status->signal = status->chain_signal[0];
-
- for (i = 1; i < hweight8(mphy->antenna_mask); i++) {
- if (!(status->chains & BIT(i)))
+ status->signal = -128;
+ for (i = 0; i < hweight8(mphy->antenna_mask); i++) {
+ if (!(status->chains & BIT(i)) ||
+ status->chain_signal[i] >= 0)
continue;
status->signal = max(status->signal,
status->chain_signal[i]);
}
+ if (status->signal == -128)
+ status->flag |= RX_FLAG_NO_SIGNAL_VAL;
+
stbc = FIELD_GET(MT_PRXV_STBC, v0);
gi = FIELD_GET(MT_PRXV_SGI, v0);
cck = false;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 437/700] mt76: connac: alaways wake the device before scanning
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (435 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 436/700] mt76: mt7921: consider the invalid value for to_rssi Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 438/700] mt76: mt7921: remove redundant check on type Greg Kroah-Hartman
` (268 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Felix Fietkau, Sasha Levin
From: Lorenzo Bianconi <lorenzo@kernel.org>
[ Upstream commit a61826203ba8806b4cdffd36bafdce3e9ad35c24 ]
move scanning check from mt76_connac_power_save_sched routine
to mt7921_pm_power_save_work/mt7615_pm_power_save_work ones
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 4 ++++
drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c | 8 --------
drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 4 ++++
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 8dccb589b756..d06e61cadc41 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1890,6 +1890,10 @@ void mt7615_pm_power_save_work(struct work_struct *work)
pm.ps_work.work);
delta = dev->pm.idle_timeout;
+ if (test_bit(MT76_HW_SCANNING, &dev->mphy.state) ||
+ test_bit(MT76_HW_SCHED_SCANNING, &dev->mphy.state))
+ goto out;
+
if (time_is_after_jiffies(dev->pm.last_activity + delta)) {
delta = dev->pm.last_activity + delta - jiffies;
goto out;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
index c5f5037f5757..cff60b699e31 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
@@ -16,10 +16,6 @@ int mt76_connac_pm_wake(struct mt76_phy *phy, struct mt76_connac_pm *pm)
if (!test_bit(MT76_STATE_PM, &phy->state))
return 0;
- if (test_bit(MT76_HW_SCANNING, &phy->state) ||
- test_bit(MT76_HW_SCHED_SCANNING, &phy->state))
- return 0;
-
if (queue_work(dev->wq, &pm->wake_work))
reinit_completion(&pm->wake_cmpl);
@@ -45,10 +41,6 @@ void mt76_connac_power_save_sched(struct mt76_phy *phy,
pm->last_activity = jiffies;
- if (test_bit(MT76_HW_SCANNING, &phy->state) ||
- test_bit(MT76_HW_SCHED_SCANNING, &phy->state))
- return;
-
if (!test_bit(MT76_STATE_PM, &phy->state))
queue_delayed_work(dev->wq, &pm->ps_work, pm->idle_timeout);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 39be2e396269..c4b144391a8e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -1524,6 +1524,10 @@ void mt7921_pm_power_save_work(struct work_struct *work)
pm.ps_work.work);
delta = dev->pm.idle_timeout;
+ if (test_bit(MT76_HW_SCANNING, &dev->mphy.state) ||
+ test_bit(MT76_HW_SCHED_SCANNING, &dev->mphy.state))
+ goto out;
+
if (time_is_after_jiffies(dev->pm.last_activity + delta)) {
delta = dev->pm.last_activity + delta - jiffies;
goto out;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 438/700] mt76: mt7921: remove redundant check on type
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (436 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 437/700] mt76: connac: alaways wake the device before scanning Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 439/700] mt76: mt7921: fix OMAC idx usage Greg Kroah-Hartman
` (267 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Colin Ian King, Felix Fietkau, Sasha Levin
From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit 1921b8925c6f2a171af6294bba6af733da2409b9 ]
Currently in the switch statement case where type is
NL80211_IFTYPE_STATION there is a check to see if type
is not NL80211_IFTYPE_STATION. This check is always false
and is redundant dead code that can be removed.
Addresses-Coverity: ("Logically dead code")
Fixes: e0f9fdda81bd ("mt76: mt7921: add ieee80211_ops")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/main.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index c6e8857067a3..05ba9cdffb1a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -239,9 +239,6 @@ static int get_omac_idx(enum nl80211_iftype type, u64 mask)
if (i)
return i - 1;
- if (type != NL80211_IFTYPE_STATION)
- break;
-
/* next, try to find a free repeater entry for the sta */
i = get_free_idx(mask >> REPEATER_BSSID_START, 0,
REPEATER_BSSID_MAX - REPEATER_BSSID_START);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 439/700] mt76: mt7921: fix OMAC idx usage
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (437 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 438/700] mt76: mt7921: remove redundant check on type Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 440/700] mt76: mt7915: fix rx fcs error count in testmode Greg Kroah-Hartman
` (266 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lorenzo Bianconi, Deren Wu, YN Chen,
Sean Wang, Felix Fietkau, Sasha Levin
From: Sean Wang <sean.wang@mediatek.com>
[ Upstream commit 213f87289ea01514acdbfeed9f65bcb5f12aef70 ]
OMAC idx have to be same with BSS idx according to firmware usage.
Fixes: e0f9fdda81bd ("mt76: mt7921: add ieee80211_ops")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: YN Chen <yn.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../net/wireless/mediatek/mt76/mt7921/main.c | 55 +------------------
1 file changed, 1 insertion(+), 54 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 05ba9cdffb1a..1894ca6324d5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -223,54 +223,6 @@ static void mt7921_stop(struct ieee80211_hw *hw)
mt7921_mutex_release(dev);
}
-static inline int get_free_idx(u32 mask, u8 start, u8 end)
-{
- return ffs(~mask & GENMASK(end, start));
-}
-
-static int get_omac_idx(enum nl80211_iftype type, u64 mask)
-{
- int i;
-
- switch (type) {
- case NL80211_IFTYPE_STATION:
- /* prefer hw bssid slot 1-3 */
- i = get_free_idx(mask, HW_BSSID_1, HW_BSSID_3);
- if (i)
- return i - 1;
-
- /* next, try to find a free repeater entry for the sta */
- i = get_free_idx(mask >> REPEATER_BSSID_START, 0,
- REPEATER_BSSID_MAX - REPEATER_BSSID_START);
- if (i)
- return i + 32 - 1;
-
- i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
- if (i)
- return i - 1;
-
- if (~mask & BIT(HW_BSSID_0))
- return HW_BSSID_0;
-
- break;
- case NL80211_IFTYPE_MONITOR:
- /* ap uses hw bssid 0 and ext bssid */
- if (~mask & BIT(HW_BSSID_0))
- return HW_BSSID_0;
-
- i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
- if (i)
- return i - 1;
-
- break;
- default:
- WARN_ON(1);
- break;
- }
-
- return -1;
-}
-
static int mt7921_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -292,12 +244,7 @@ static int mt7921_add_interface(struct ieee80211_hw *hw,
goto out;
}
- idx = get_omac_idx(vif->type, phy->omac_mask);
- if (idx < 0) {
- ret = -ENOSPC;
- goto out;
- }
- mvif->mt76.omac_idx = idx;
+ mvif->mt76.omac_idx = mvif->mt76.idx;
mvif->phy = phy;
mvif->mt76.band_idx = 0;
mvif->mt76.wmm_idx = mvif->mt76.idx % MT7921_MAX_WMM_SETS;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 440/700] mt76: mt7915: fix rx fcs error count in testmode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (438 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 439/700] mt76: mt7921: fix OMAC idx usage Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 441/700] net: ethernet: aeroflex: fix UAF in greth_of_remove Greg Kroah-Hartman
` (265 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shayne Chen, Felix Fietkau, Sasha Levin
From: Shayne Chen <shayne.chen@mediatek.com>
[ Upstream commit 89043529c8b833d87391f1844e9d1cc1643393eb ]
FCS error packets are filtered by default and won't be reported to
driver, so that RX fcs error and PER in testmode always show zero.
Fix this issue by reading fcs error count from hw counter.
We did't fix this issue by disabling fcs error rx filter since it may
let HW suffer some SER errors.
Fixes: 5d8a83f09941 ("mt76: mt7915: implement testmode rx support")
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../wireless/mediatek/mt76/mt7915/testmode.c | 21 +++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
index bd798df748ba..8eb90722c532 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
@@ -476,10 +476,17 @@ mt7915_tm_set_tx_frames(struct mt7915_phy *phy, bool en)
static void
mt7915_tm_set_rx_frames(struct mt7915_phy *phy, bool en)
{
- if (en)
+ mt7915_tm_set_trx(phy, TM_MAC_RX_RXV, false);
+
+ if (en) {
+ struct mt7915_dev *dev = phy->dev;
+
mt7915_tm_update_channel(phy);
- mt7915_tm_set_trx(phy, TM_MAC_RX_RXV, en);
+ /* read-clear */
+ mt76_rr(dev, MT_MIB_SDR3(phy != &dev->phy));
+ mt7915_tm_set_trx(phy, TM_MAC_RX_RXV, en);
+ }
}
static int
@@ -702,7 +709,11 @@ static int
mt7915_tm_dump_stats(struct mt76_phy *mphy, struct sk_buff *msg)
{
struct mt7915_phy *phy = mphy->priv;
+ struct mt7915_dev *dev = phy->dev;
+ bool ext_phy = phy != &dev->phy;
+ enum mt76_rxq_id q;
void *rx, *rssi;
+ u16 fcs_err;
int i;
rx = nla_nest_start(msg, MT76_TM_STATS_ATTR_LAST_RX);
@@ -747,6 +758,12 @@ mt7915_tm_dump_stats(struct mt76_phy *mphy, struct sk_buff *msg)
nla_nest_end(msg, rx);
+ fcs_err = mt76_get_field(dev, MT_MIB_SDR3(ext_phy),
+ MT_MIB_SDR3_FCS_ERR_MASK);
+ q = ext_phy ? MT_RXQ_EXT : MT_RXQ_MAIN;
+ mphy->test.rx_stats.packets[q] += fcs_err;
+ mphy->test.rx_stats.fcs_error[q] += fcs_err;
+
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 441/700] net: ethernet: aeroflex: fix UAF in greth_of_remove
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (439 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 440/700] mt76: mt7915: fix rx fcs error count in testmode Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 442/700] net: ethernet: ezchip: fix UAF in nps_enet_remove Greg Kroah-Hartman
` (264 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, David S. Miller, Sasha Levin
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit e3a5de6d81d8b2199935c7eb3f7d17a50a7075b7 ]
static int greth_of_remove(struct platform_device *of_dev)
{
...
struct greth_private *greth = netdev_priv(ndev);
...
unregister_netdev(ndev);
free_netdev(ndev);
of_iounmap(&of_dev->resource[0], greth->regs, resource_size(&of_dev->resource[0]));
...
}
greth is netdev private data, but it is used
after free_netdev(). It can cause use-after-free when accessing greth
pointer. So, fix it by moving free_netdev() after of_iounmap()
call.
Fixes: d4c41139df6e ("net: Add Aeroflex Gaisler 10/100/1G Ethernet MAC driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/aeroflex/greth.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c
index 9c5891bbfe61..f4f50b3a472e 100644
--- a/drivers/net/ethernet/aeroflex/greth.c
+++ b/drivers/net/ethernet/aeroflex/greth.c
@@ -1539,10 +1539,11 @@ static int greth_of_remove(struct platform_device *of_dev)
mdiobus_unregister(greth->mdio);
unregister_netdev(ndev);
- free_netdev(ndev);
of_iounmap(&of_dev->resource[0], greth->regs, resource_size(&of_dev->resource[0]));
+ free_netdev(ndev);
+
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 442/700] net: ethernet: ezchip: fix UAF in nps_enet_remove
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (440 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 441/700] net: ethernet: aeroflex: fix UAF in greth_of_remove Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 443/700] net: ethernet: ezchip: fix error handling Greg Kroah-Hartman
` (263 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, David S. Miller, Sasha Levin
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit e4b8700e07a86e8eab6916aa5c5ba99042c34089 ]
priv is netdev private data, but it is used
after free_netdev(). It can cause use-after-free when accessing priv
pointer. So, fix it by moving free_netdev() after netif_napi_del()
call.
Fixes: 0dd077093636 ("NET: Add ezchip ethernet driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ezchip/nps_enet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c
index 815fb62c4b02..026a3ec19b6e 100644
--- a/drivers/net/ethernet/ezchip/nps_enet.c
+++ b/drivers/net/ethernet/ezchip/nps_enet.c
@@ -645,8 +645,8 @@ static s32 nps_enet_remove(struct platform_device *pdev)
struct nps_enet_priv *priv = netdev_priv(ndev);
unregister_netdev(ndev);
- free_netdev(ndev);
netif_napi_del(&priv->napi);
+ free_netdev(ndev);
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 443/700] net: ethernet: ezchip: fix error handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (441 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 442/700] net: ethernet: ezchip: fix UAF in nps_enet_remove Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 444/700] vrf: do not push non-ND strict packets with a source LLA through packet taps again Greg Kroah-Hartman
` (262 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, David S. Miller, Sasha Levin
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit 0de449d599594f5472e00267d651615c7f2c6c1d ]
As documented at drivers/base/platform.c for platform_get_irq:
* Gets an IRQ for a platform device and prints an error message if finding the
* IRQ fails. Device drivers should check the return value for errors so as to
* not pass a negative integer value to the request_irq() APIs.
So, the driver should check that platform_get_irq() return value
is _negative_, not that it's equal to zero, because -ENXIO (return
value from request_irq() if irq was not found) will
pass this check and it leads to passing negative irq to request_irq()
Fixes: 0dd077093636 ("NET: Add ezchip ethernet driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ezchip/nps_enet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ezchip/nps_enet.c b/drivers/net/ethernet/ezchip/nps_enet.c
index 026a3ec19b6e..3d74401b4f10 100644
--- a/drivers/net/ethernet/ezchip/nps_enet.c
+++ b/drivers/net/ethernet/ezchip/nps_enet.c
@@ -610,7 +610,7 @@ static s32 nps_enet_probe(struct platform_device *pdev)
/* Get IRQ number */
priv->irq = platform_get_irq(pdev, 0);
- if (!priv->irq) {
+ if (priv->irq < 0) {
dev_err(dev, "failed to retrieve <irq Rx-Tx> value from device tree\n");
err = -ENODEV;
goto out_netdev;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 444/700] vrf: do not push non-ND strict packets with a source LLA through packet taps again
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (442 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 443/700] net: ethernet: ezchip: fix error handling Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 445/700] net: sched: add barrier to ensure correct ordering for lockless qdisc Greg Kroah-Hartman
` (261 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Stephen Suryaputra, Paolo Abeni,
Antoine Tenart, David Ahern, David S. Miller, Sasha Levin
From: Antoine Tenart <atenart@kernel.org>
[ Upstream commit 603113c514e95c3350598bc3cccbd03af7ea4ab2 ]
Non-ND strict packets with a source LLA go through the packet taps
again, while non-ND strict packets with other source addresses do not,
and we can see a clone of those packets on the vrf interface (we should
not). This is due to a series of changes:
Commit 6f12fa775530[1] made non-ND strict packets not being pushed again
in the packet taps. This changed with commit 205704c618af[2] for those
packets having a source LLA, as they need a lookup with the orig_iif.
The issue now is those packets do not skip the 'vrf_ip6_rcv' function to
the end (as the ones without a source LLA) and go through the check to
call packet taps again. This check was changed by commit 6f12fa775530[1]
and do not exclude non-strict packets anymore. Packets matching
'need_strict && !is_ndisc && is_ll_src' are now being sent through the
packet taps again. This can be seen by dumping packets on the vrf
interface.
Fix this by having the same code path for all non-ND strict packets and
selectively lookup with the orig_iif for those with a source LLA. This
has the effect to revert to the pre-205704c618af[2] condition, which
should also be easier to maintain.
[1] 6f12fa775530 ("vrf: mark skb for multicast or link-local as enslaved to VRF")
[2] 205704c618af ("vrf: packets with lladdr src needs dst at input with orig_iif when needs strict")
Fixes: 205704c618af ("vrf: packets with lladdr src needs dst at input with orig_iif when needs strict")
Cc: Stephen Suryaputra <ssuryaextr@gmail.com>
Reported-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/vrf.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 28a6c4cfe9b8..414afcb0a23f 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1366,22 +1366,22 @@ static struct sk_buff *vrf_ip6_rcv(struct net_device *vrf_dev,
int orig_iif = skb->skb_iif;
bool need_strict = rt6_need_strict(&ipv6_hdr(skb)->daddr);
bool is_ndisc = ipv6_ndisc_frame(skb);
- bool is_ll_src;
/* loopback, multicast & non-ND link-local traffic; do not push through
* packet taps again. Reset pkt_type for upper layers to process skb.
- * for packets with lladdr src, however, skip so that the dst can be
- * determine at input using original ifindex in the case that daddr
- * needs strict
+ * For strict packets with a source LLA, determine the dst using the
+ * original ifindex.
*/
- is_ll_src = ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL;
- if (skb->pkt_type == PACKET_LOOPBACK ||
- (need_strict && !is_ndisc && !is_ll_src)) {
+ if (skb->pkt_type == PACKET_LOOPBACK || (need_strict && !is_ndisc)) {
skb->dev = vrf_dev;
skb->skb_iif = vrf_dev->ifindex;
IP6CB(skb)->flags |= IP6SKB_L3SLAVE;
+
if (skb->pkt_type == PACKET_LOOPBACK)
skb->pkt_type = PACKET_HOST;
+ else if (ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)
+ vrf_ip6_input_dst(skb, vrf_dev, orig_iif);
+
goto out;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 445/700] net: sched: add barrier to ensure correct ordering for lockless qdisc
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (443 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 444/700] vrf: do not push non-ND strict packets with a source LLA through packet taps again Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 446/700] selftests: tls: clean up uninitialized warnings Greg Kroah-Hartman
` (260 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yunsheng Lin, Jakub Kicinski,
David S. Miller, Sasha Levin
From: Yunsheng Lin <linyunsheng@huawei.com>
[ Upstream commit 89837eb4b2463c556a123437f242d6c2bc62ce81 ]
The spin_trylock() was assumed to contain the implicit
barrier needed to ensure the correct ordering between
STATE_MISSED setting/clearing and STATE_MISSED checking
in commit a90c57f2cedd ("net: sched: fix packet stuck
problem for lockless qdisc").
But it turns out that spin_trylock() only has load-acquire
semantic, for strongly-ordered system(like x86), the compiler
barrier implicitly contained in spin_trylock() seems enough
to ensure the correct ordering. But for weakly-orderly system
(like arm64), the store-release semantic is needed to ensure
the correct ordering as clear_bit() and test_bit() is store
operation, see queued_spin_lock().
So add the explicit barrier to ensure the correct ordering
for the above case.
Fixes: a90c57f2cedd ("net: sched: fix packet stuck problem for lockless qdisc")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/sch_generic.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 2c4f3527cc09..b070e99c412d 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -163,6 +163,12 @@ static inline bool qdisc_run_begin(struct Qdisc *qdisc)
if (spin_trylock(&qdisc->seqlock))
goto nolock_empty;
+ /* Paired with smp_mb__after_atomic() to make sure
+ * STATE_MISSED checking is synchronized with clearing
+ * in pfifo_fast_dequeue().
+ */
+ smp_mb__before_atomic();
+
/* If the MISSED flag is set, it means other thread has
* set the MISSED flag before second spin_trylock(), so
* we can return false here to avoid multi cpus doing
@@ -180,6 +186,12 @@ static inline bool qdisc_run_begin(struct Qdisc *qdisc)
*/
set_bit(__QDISC_STATE_MISSED, &qdisc->state);
+ /* spin_trylock() only has load-acquire semantic, so use
+ * smp_mb__after_atomic() to ensure STATE_MISSED is set
+ * before doing the second spin_trylock().
+ */
+ smp_mb__after_atomic();
+
/* Retry again in case other CPU may not see the new flag
* after it releases the lock at the end of qdisc_run_end().
*/
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 446/700] selftests: tls: clean up uninitialized warnings
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (444 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 445/700] net: sched: add barrier to ensure correct ordering for lockless qdisc Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 447/700] selftests: tls: fix chacha+bidir tests Greg Kroah-Hartman
` (259 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jakub Kicinski, Vadim Fedorenko,
David S. Miller, Sasha Levin
From: Jakub Kicinski <kuba@kernel.org>
[ Upstream commit baa00119d69e3318da8d99867fc1170ebddf09ce ]
A bunch of tests uses uninitialized stack memory as random
data to send. This is harmless but generates compiler warnings.
Explicitly init the buffers with random data.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/net/tls.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 426d07875a48..58fea6eb588d 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -25,6 +25,18 @@
#define TLS_PAYLOAD_MAX_LEN 16384
#define SOL_TLS 282
+static void memrnd(void *s, size_t n)
+{
+ int *dword = s;
+ char *byte;
+
+ for (; n >= 4; n -= 4)
+ *dword++ = rand();
+ byte = (void *)dword;
+ while (n--)
+ *byte++ = rand();
+}
+
FIXTURE(tls_basic)
{
int fd, cfd;
@@ -308,6 +320,8 @@ TEST_F(tls, recv_max)
char recv_mem[TLS_PAYLOAD_MAX_LEN];
char buf[TLS_PAYLOAD_MAX_LEN];
+ memrnd(buf, sizeof(buf));
+
EXPECT_GE(send(self->fd, buf, send_len, 0), 0);
EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
EXPECT_EQ(memcmp(buf, recv_mem, send_len), 0);
@@ -588,6 +602,8 @@ TEST_F(tls, recvmsg_single_max)
struct iovec vec;
struct msghdr hdr;
+ memrnd(send_mem, sizeof(send_mem));
+
EXPECT_EQ(send(self->fd, send_mem, send_len, 0), send_len);
vec.iov_base = (char *)recv_mem;
vec.iov_len = TLS_PAYLOAD_MAX_LEN;
@@ -610,6 +626,8 @@ TEST_F(tls, recvmsg_multiple)
struct msghdr hdr;
int i;
+ memrnd(buf, sizeof(buf));
+
EXPECT_EQ(send(self->fd, buf, send_len, 0), send_len);
for (i = 0; i < msg_iovlen; i++) {
iov_base[i] = (char *)malloc(iov_len);
@@ -634,6 +652,8 @@ TEST_F(tls, single_send_multiple_recv)
char send_mem[TLS_PAYLOAD_MAX_LEN * 2];
char recv_mem[TLS_PAYLOAD_MAX_LEN * 2];
+ memrnd(send_mem, sizeof(send_mem));
+
EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
memset(recv_mem, 0, total_len);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 447/700] selftests: tls: fix chacha+bidir tests
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (445 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 446/700] selftests: tls: clean up uninitialized warnings Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 448/700] tls: prevent oversized sendfile() hangs by ignoring MSG_MORE Greg Kroah-Hartman
` (258 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jakub Kicinski, Vadim Fedorenko,
David S. Miller, Sasha Levin
From: Jakub Kicinski <kuba@kernel.org>
[ Upstream commit 291c53e4dacd3a2cc3152d8af37f07f8496c594a ]
ChaCha support did not adjust the bidirectional test.
We need to set up KTLS in reverse direction correctly,
otherwise these two cases will fail:
tls.12_chacha.bidir
tls.13_chacha.bidir
Fixes: 4f336e88a870 ("selftests/tls: add CHACHA20-POLY1305 to tls selftests")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/net/tls.c | 67 ++++++++++++++++++-------------
1 file changed, 39 insertions(+), 28 deletions(-)
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 58fea6eb588d..112d41d01b12 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -25,6 +25,35 @@
#define TLS_PAYLOAD_MAX_LEN 16384
#define SOL_TLS 282
+struct tls_crypto_info_keys {
+ union {
+ struct tls12_crypto_info_aes_gcm_128 aes128;
+ struct tls12_crypto_info_chacha20_poly1305 chacha20;
+ };
+ size_t len;
+};
+
+static void tls_crypto_info_init(uint16_t tls_version, uint16_t cipher_type,
+ struct tls_crypto_info_keys *tls12)
+{
+ memset(tls12, 0, sizeof(*tls12));
+
+ switch (cipher_type) {
+ case TLS_CIPHER_CHACHA20_POLY1305:
+ tls12->len = sizeof(struct tls12_crypto_info_chacha20_poly1305);
+ tls12->chacha20.info.version = tls_version;
+ tls12->chacha20.info.cipher_type = cipher_type;
+ break;
+ case TLS_CIPHER_AES_GCM_128:
+ tls12->len = sizeof(struct tls12_crypto_info_aes_gcm_128);
+ tls12->aes128.info.version = tls_version;
+ tls12->aes128.info.cipher_type = cipher_type;
+ break;
+ default:
+ break;
+ }
+}
+
static void memrnd(void *s, size_t n)
{
int *dword = s;
@@ -145,33 +174,16 @@ FIXTURE_VARIANT_ADD(tls, 13_chacha)
FIXTURE_SETUP(tls)
{
- union {
- struct tls12_crypto_info_aes_gcm_128 aes128;
- struct tls12_crypto_info_chacha20_poly1305 chacha20;
- } tls12;
+ struct tls_crypto_info_keys tls12;
struct sockaddr_in addr;
socklen_t len;
int sfd, ret;
- size_t tls12_sz;
self->notls = false;
len = sizeof(addr);
- memset(&tls12, 0, sizeof(tls12));
- switch (variant->cipher_type) {
- case TLS_CIPHER_CHACHA20_POLY1305:
- tls12_sz = sizeof(struct tls12_crypto_info_chacha20_poly1305);
- tls12.chacha20.info.version = variant->tls_version;
- tls12.chacha20.info.cipher_type = variant->cipher_type;
- break;
- case TLS_CIPHER_AES_GCM_128:
- tls12_sz = sizeof(struct tls12_crypto_info_aes_gcm_128);
- tls12.aes128.info.version = variant->tls_version;
- tls12.aes128.info.cipher_type = variant->cipher_type;
- break;
- default:
- tls12_sz = 0;
- }
+ tls_crypto_info_init(variant->tls_version, variant->cipher_type,
+ &tls12);
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
@@ -199,7 +211,7 @@ FIXTURE_SETUP(tls)
if (!self->notls) {
ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12,
- tls12_sz);
+ tls12.len);
ASSERT_EQ(ret, 0);
}
@@ -212,7 +224,7 @@ FIXTURE_SETUP(tls)
ASSERT_EQ(ret, 0);
ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12,
- tls12_sz);
+ tls12.len);
ASSERT_EQ(ret, 0);
}
@@ -854,18 +866,17 @@ TEST_F(tls, bidir)
int ret;
if (!self->notls) {
- struct tls12_crypto_info_aes_gcm_128 tls12;
+ struct tls_crypto_info_keys tls12;
- memset(&tls12, 0, sizeof(tls12));
- tls12.info.version = variant->tls_version;
- tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+ tls_crypto_info_init(variant->tls_version, variant->cipher_type,
+ &tls12);
ret = setsockopt(self->fd, SOL_TLS, TLS_RX, &tls12,
- sizeof(tls12));
+ tls12.len);
ASSERT_EQ(ret, 0);
ret = setsockopt(self->cfd, SOL_TLS, TLS_TX, &tls12,
- sizeof(tls12));
+ tls12.len);
ASSERT_EQ(ret, 0);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 448/700] tls: prevent oversized sendfile() hangs by ignoring MSG_MORE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (446 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 447/700] selftests: tls: fix chacha+bidir tests Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 449/700] netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic Greg Kroah-Hartman
` (257 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vadim Fedorenko, Seth Forshee,
Jakub Kicinski, David S. Miller, Sasha Levin
From: Jakub Kicinski <kuba@kernel.org>
[ Upstream commit d452d48b9f8b1a7f8152d33ef52cfd7fe1735b0a ]
We got multiple reports that multi_chunk_sendfile test
case from tls selftest fails. This was sort of expected,
as the original fix was never applied (see it in the first
Link:). The test in question uses sendfile() with count
larger than the size of the underlying file. This will
make splice set MSG_MORE on all sendpage calls, meaning
TLS will never close and flush the last partial record.
Eric seem to have addressed a similar problem in
commit 35f9c09fe9c7 ("tcp: tcp_sendpages() should call tcp_push() once")
by introducing MSG_SENDPAGE_NOTLAST. Unlike MSG_MORE
MSG_SENDPAGE_NOTLAST is not set on the last call
of a "pipefull" of data (PIPE_DEF_BUFFERS == 16,
so every 16 pages or whenever we run out of data).
Having a break every 16 pages should be fine, TLS
can pack exactly 4 pages into a record, so for
aligned reads there should be no difference,
unaligned may see one extra record per sendpage().
Sticking to TCP semantics seems preferable to modifying
splice, but we can revisit it if real life scenarios
show a regression.
Reported-by: Vadim Fedorenko <vfedorenko@novek.ru>
Reported-by: Seth Forshee <seth.forshee@canonical.com>
Link: https://lore.kernel.org/netdev/1591392508-14592-1-git-send-email-pooja.trivedi@stackpath.com/
Fixes: 3c4d7559159b ("tls: kernel TLS support")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/tls/tls_sw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 6086cf4f10a7..60d2ff13fa9e 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -1153,7 +1153,7 @@ static int tls_sw_do_sendpage(struct sock *sk, struct page *page,
int ret = 0;
bool eor;
- eor = !(flags & (MSG_MORE | MSG_SENDPAGE_NOTLAST));
+ eor = !(flags & MSG_SENDPAGE_NOTLAST);
sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
/* Call the sk_stream functions to manage the sndbuf mem. */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 449/700] netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (447 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 448/700] tls: prevent oversized sendfile() hangs by ignoring MSG_MORE Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 450/700] net: dsa: mv88e6xxx: Fix adding vlan 0 Greg Kroah-Hartman
` (256 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pablo Neira Ayuso, Sasha Levin
From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit ea45fdf82cc90430bb7c280e5e53821e833782c5 ]
The VLAN transfer logic should actually check for
FLOW_DISSECTOR_KEY_BASIC, not FLOW_DISSECTOR_KEY_CONTROL. Moreover, do
not fallback to case 2) .n_proto is set to 802.1q or 802.1ad, if
FLOW_DISSECTOR_KEY_BASIC is unset.
Fixes: 783003f3bb8a ("netfilter: nftables_offload: special ethertype handling for VLAN")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nf_tables_offload.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index 2b00f7f47693..9ce776175214 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -54,15 +54,10 @@ static void nft_flow_rule_transfer_vlan(struct nft_offload_ctx *ctx,
struct nft_flow_rule *flow)
{
struct nft_flow_match *match = &flow->match;
- struct nft_offload_ethertype ethertype;
-
- if (match->dissector.used_keys & BIT(FLOW_DISSECTOR_KEY_CONTROL) &&
- match->key.basic.n_proto != htons(ETH_P_8021Q) &&
- match->key.basic.n_proto != htons(ETH_P_8021AD))
- return;
-
- ethertype.value = match->key.basic.n_proto;
- ethertype.mask = match->mask.basic.n_proto;
+ struct nft_offload_ethertype ethertype = {
+ .value = match->key.basic.n_proto,
+ .mask = match->mask.basic.n_proto,
+ };
if (match->dissector.used_keys & BIT(FLOW_DISSECTOR_KEY_VLAN) &&
(match->key.vlan.vlan_tpid == htons(ETH_P_8021Q) ||
@@ -76,7 +71,9 @@ static void nft_flow_rule_transfer_vlan(struct nft_offload_ctx *ctx,
match->dissector.offset[FLOW_DISSECTOR_KEY_CVLAN] =
offsetof(struct nft_flow_key, cvlan);
match->dissector.used_keys |= BIT(FLOW_DISSECTOR_KEY_CVLAN);
- } else {
+ } else if (match->dissector.used_keys & BIT(FLOW_DISSECTOR_KEY_BASIC) &&
+ (match->key.basic.n_proto == htons(ETH_P_8021Q) ||
+ match->key.basic.n_proto == htons(ETH_P_8021AD))) {
match->key.basic.n_proto = match->key.vlan.vlan_tpid;
match->mask.basic.n_proto = match->mask.vlan.vlan_tpid;
match->key.vlan.vlan_tpid = ethertype.value;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 450/700] net: dsa: mv88e6xxx: Fix adding vlan 0
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (448 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 449/700] netfilter: nf_tables_offload: check FLOW_DISSECTOR_KEY_BASIC in VLAN transfer logic Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 451/700] pkt_sched: sch_qfq: fix qfq_change_class() error path Greg Kroah-Hartman
` (255 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eldar Gasanov, Vladimir Oltean,
David S. Miller, Sasha Levin
From: Eldar Gasanov <eldargasanov2@gmail.com>
[ Upstream commit b8b79c414eca4e9bcab645e02cb92c48db974ce9 ]
8021q module adds vlan 0 to all interfaces when it starts.
When 8021q module is loaded it isn't possible to create bond
with mv88e6xxx interfaces, bonding module dipslay error
"Couldn't add bond vlan ids", because it tries to add vlan 0
to slave interfaces.
There is unexpected behavior in the switch. When a PVID
is assigned to a port the switch changes VID to PVID
in ingress frames with VID 0 on the port. Expected
that the switch doesn't assign PVID to tagged frames
with VID 0. But there isn't a way to change this behavior
in the switch.
Fixes: 57e661aae6a8 ("net: dsa: mv88e6xxx: Link aggregation support")
Signed-off-by: Eldar Gasanov <eldargasanov2@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/mv88e6xxx/chip.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index e08bf9377140..25363fceb45e 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1552,9 +1552,6 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
struct mv88e6xxx_vtu_entry vlan;
int i, err;
- if (!vid)
- return -EOPNOTSUPP;
-
/* DSA and CPU ports have to be members of multiple vlans */
if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
return 0;
@@ -1993,6 +1990,9 @@ static int mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port,
u8 member;
int err;
+ if (!vlan->vid)
+ return 0;
+
err = mv88e6xxx_port_vlan_prepare(ds, port, vlan);
if (err)
return err;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 451/700] pkt_sched: sch_qfq: fix qfq_change_class() error path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (449 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 450/700] net: dsa: mv88e6xxx: Fix adding vlan 0 Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 452/700] xfrm: Fix xfrm offload fallback fail case Greg Kroah-Hartman
` (254 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, syzbot,
David S. Miller, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit 0cd58e5c53babb9237b741dbef711f0a9eb6d3fd ]
If qfq_change_class() is unable to allocate memory for qfq_aggregate,
it frees the class that has been inserted in the class hash table,
but does not unhash it.
Defer the insertion after the problematic allocation.
BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:884 [inline]
BUG: KASAN: use-after-free in qdisc_class_hash_insert+0x200/0x210 net/sched/sch_api.c:731
Write of size 8 at addr ffff88814a534f10 by task syz-executor.4/31478
CPU: 0 PID: 31478 Comm: syz-executor.4 Not tainted 5.13.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x141/0x1d7 lib/dump_stack.c:120
print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:233
__kasan_report mm/kasan/report.c:419 [inline]
kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:436
hlist_add_head include/linux/list.h:884 [inline]
qdisc_class_hash_insert+0x200/0x210 net/sched/sch_api.c:731
qfq_change_class+0x96c/0x1990 net/sched/sch_qfq.c:489
tc_ctl_tclass+0x514/0xe50 net/sched/sch_api.c:2113
rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5564
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:674
____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
___sys_sendmsg+0xf3/0x170 net/socket.c:2404
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdc7b5f0188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007fdc7b5f01d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffcf7310b3f R14: 00007fdc7b5f0300 R15: 0000000000022000
Allocated by task 31445:
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:428 [inline]
____kasan_kmalloc mm/kasan/common.c:507 [inline]
____kasan_kmalloc mm/kasan/common.c:466 [inline]
__kasan_kmalloc+0x9b/0xd0 mm/kasan/common.c:516
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:686 [inline]
qfq_change_class+0x705/0x1990 net/sched/sch_qfq.c:464
tc_ctl_tclass+0x514/0xe50 net/sched/sch_api.c:2113
rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5564
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:674
____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
___sys_sendmsg+0xf3/0x170 net/socket.c:2404
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
entry_SYSCALL_64_after_hwframe+0x44/0xae
Freed by task 31445:
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:357
____kasan_slab_free mm/kasan/common.c:360 [inline]
____kasan_slab_free mm/kasan/common.c:325 [inline]
__kasan_slab_free+0xfb/0x130 mm/kasan/common.c:368
kasan_slab_free include/linux/kasan.h:212 [inline]
slab_free_hook mm/slub.c:1583 [inline]
slab_free_freelist_hook+0xdf/0x240 mm/slub.c:1608
slab_free mm/slub.c:3168 [inline]
kfree+0xe5/0x7f0 mm/slub.c:4212
qfq_change_class+0x10fb/0x1990 net/sched/sch_qfq.c:518
tc_ctl_tclass+0x514/0xe50 net/sched/sch_api.c:2113
rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5564
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:654 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:674
____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
___sys_sendmsg+0xf3/0x170 net/socket.c:2404
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
entry_SYSCALL_64_after_hwframe+0x44/0xae
The buggy address belongs to the object at ffff88814a534f00
which belongs to the cache kmalloc-128 of size 128
The buggy address is located 16 bytes inside of
128-byte region [ffff88814a534f00, ffff88814a534f80)
The buggy address belongs to the page:
page:ffffea0005294d00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14a534
flags: 0x57ff00000000200(slab|node=1|zone=2|lastcpupid=0x7ff)
raw: 057ff00000000200 ffffea00004fee00 0000000600000006 ffff8880110418c0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 29797, ts 604817765317, free_ts 604810151744
prep_new_page mm/page_alloc.c:2358 [inline]
get_page_from_freelist+0x1033/0x2b60 mm/page_alloc.c:3994
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5200
alloc_pages+0x18c/0x2a0 mm/mempolicy.c:2272
alloc_slab_page mm/slub.c:1646 [inline]
allocate_slab+0x2c5/0x4c0 mm/slub.c:1786
new_slab mm/slub.c:1849 [inline]
new_slab_objects mm/slub.c:2595 [inline]
___slab_alloc+0x4a1/0x810 mm/slub.c:2758
__slab_alloc.constprop.0+0xa7/0xf0 mm/slub.c:2798
slab_alloc_node mm/slub.c:2880 [inline]
slab_alloc mm/slub.c:2922 [inline]
__kmalloc+0x315/0x330 mm/slub.c:4050
kmalloc include/linux/slab.h:561 [inline]
kzalloc include/linux/slab.h:686 [inline]
__register_sysctl_table+0x112/0x1090 fs/proc/proc_sysctl.c:1318
mpls_dev_sysctl_register+0x1b7/0x2d0 net/mpls/af_mpls.c:1421
mpls_add_dev net/mpls/af_mpls.c:1472 [inline]
mpls_dev_notify+0x214/0x8b0 net/mpls/af_mpls.c:1588
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2121
call_netdevice_notifiers_extack net/core/dev.c:2133 [inline]
call_netdevice_notifiers net/core/dev.c:2147 [inline]
register_netdevice+0x106b/0x1500 net/core/dev.c:10312
veth_newlink+0x585/0xac0 drivers/net/veth.c:1547
__rtnl_newlink+0x1062/0x1710 net/core/rtnetlink.c:3452
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3500
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1298 [inline]
free_pcp_prepare+0x223/0x300 mm/page_alloc.c:1342
free_unref_page_prepare mm/page_alloc.c:3250 [inline]
free_unref_page+0x12/0x1d0 mm/page_alloc.c:3298
__vunmap+0x783/0xb60 mm/vmalloc.c:2566
free_work+0x58/0x70 mm/vmalloc.c:80
process_one_work+0x98d/0x1600 kernel/workqueue.c:2276
worker_thread+0x64c/0x1120 kernel/workqueue.c:2422
kthread+0x3b1/0x4a0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Memory state around the buggy address:
ffff88814a534e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88814a534e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88814a534f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88814a534f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff88814a535000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Fixes: 462dbc9101acd ("pkt_sched: QFQ Plus: fair-queueing service at DRR cost")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/sched/sch_qfq.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 1db9d4a2ef5e..b692a0de1ad5 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -485,11 +485,6 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
if (cl->qdisc != &noop_qdisc)
qdisc_hash_add(cl->qdisc, true);
- sch_tree_lock(sch);
- qdisc_class_hash_insert(&q->clhash, &cl->common);
- sch_tree_unlock(sch);
-
- qdisc_class_hash_grow(sch, &q->clhash);
set_change_agg:
sch_tree_lock(sch);
@@ -507,8 +502,11 @@ set_change_agg:
}
if (existing)
qfq_deact_rm_from_agg(q, cl);
+ else
+ qdisc_class_hash_insert(&q->clhash, &cl->common);
qfq_add_to_agg(q, new_agg, cl);
sch_tree_unlock(sch);
+ qdisc_class_hash_grow(sch, &q->clhash);
*arg = (unsigned long)cl;
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 452/700] xfrm: Fix xfrm offload fallback fail case
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (450 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 451/700] pkt_sched: sch_qfq: fix qfq_change_class() error path Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 453/700] netfilter: nf_tables: skip netlink portID validation if zero Greg Kroah-Hartman
` (253 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ayush Sawal, Steffen Klassert, Sasha Levin
From: Ayush Sawal <ayush.sawal@chelsio.com>
[ Upstream commit dd72fadf2186fc8a6018f97fe72f4d5ca05df440 ]
In case of xfrm offload, if xdo_dev_state_add() of driver returns
-EOPNOTSUPP, xfrm offload fallback is failed.
In xfrm state_add() both xso->dev and xso->real_dev are initialized to
dev and when err(-EOPNOTSUPP) is returned only xso->dev is set to null.
So in this scenario the condition in func validate_xmit_xfrm(),
if ((x->xso.dev != dev) && (x->xso.real_dev == dev))
return skb;
returns true, due to which skb is returned without calling esp_xmit()
below which has fallback code. Hence the CRYPTO_FALLBACK is failing.
So fixing this with by keeping x->xso.real_dev as NULL when err is
returned in func xfrm_dev_state_add().
Fixes: bdfd2d1fa79a ("bonding/xfrm: use real_dev instead of slave_dev")
Signed-off-by: Ayush Sawal <ayush.sawal@chelsio.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/xfrm/xfrm_device.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 6d6917b68856..e843b0d9e2a6 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -268,6 +268,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
xso->num_exthdrs = 0;
xso->flags = 0;
xso->dev = NULL;
+ xso->real_dev = NULL;
dev_put(dev);
if (err != -EOPNOTSUPP)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 453/700] netfilter: nf_tables: skip netlink portID validation if zero
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (451 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 452/700] xfrm: Fix xfrm offload fallback fail case Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 454/700] netfilter: nf_tables: do not allow to delete table with owner by handle Greg Kroah-Hartman
` (252 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pablo Neira Ayuso, Sasha Levin
From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit 534799097a777e82910f77a4f9d289c815a9a64e ]
nft_table_lookup() allows us to obtain the table object by the name and
the family. The netlink portID validation needs to be skipped for the
dump path, since the ownership only applies to commands to update the
given table. Skip validation if the specified netlink PortID is zero
when calling nft_table_lookup().
Fixes: 6001a930ce03 ("netfilter: nftables: introduce table ownership")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nf_tables_api.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 9d5ea2352965..3705086d43f5 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -521,7 +521,7 @@ static struct nft_table *nft_table_lookup(const struct net *net,
table->family == family &&
nft_active_genmask(table, genmask)) {
if (nft_table_has_owner(table) &&
- table->nlpid != nlpid)
+ nlpid && table->nlpid != nlpid)
return ERR_PTR(-EPERM);
return table;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 454/700] netfilter: nf_tables: do not allow to delete table with owner by handle
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (452 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 453/700] netfilter: nf_tables: skip netlink portID validation if zero Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 455/700] iwlwifi: increase PNVM load timeout Greg Kroah-Hartman
` (251 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pablo Neira Ayuso, Sasha Levin
From: Pablo Neira Ayuso <pablo@netfilter.org>
[ Upstream commit e31f072ffab0397a328b31a9589dcf9733dc9c72 ]
nft_table_lookup_byhandle() also needs to validate the netlink PortID
owner when deleting a table by handle.
Fixes: 6001a930ce03 ("netfilter: nftables: introduce table ownership")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/netfilter/nf_tables_api.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 3705086d43f5..6b79fa357bfe 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -533,14 +533,19 @@ static struct nft_table *nft_table_lookup(const struct net *net,
static struct nft_table *nft_table_lookup_byhandle(const struct net *net,
const struct nlattr *nla,
- u8 genmask)
+ u8 genmask, u32 nlpid)
{
struct nft_table *table;
list_for_each_entry(table, &net->nft.tables, list) {
if (be64_to_cpu(nla_get_be64(nla)) == table->handle &&
- nft_active_genmask(table, genmask))
+ nft_active_genmask(table, genmask)) {
+ if (nft_table_has_owner(table) &&
+ nlpid && table->nlpid != nlpid)
+ return ERR_PTR(-EPERM);
+
return table;
+ }
}
return ERR_PTR(-ENOENT);
@@ -1213,7 +1218,8 @@ static int nf_tables_deltable(struct net *net, struct sock *nlsk,
if (nla[NFTA_TABLE_HANDLE]) {
attr = nla[NFTA_TABLE_HANDLE];
- table = nft_table_lookup_byhandle(net, attr, genmask);
+ table = nft_table_lookup_byhandle(net, attr, genmask,
+ NETLINK_CB(skb).portid);
} else {
attr = nla[NFTA_TABLE_NAME];
table = nft_table_lookup(net, attr, family, genmask,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 455/700] iwlwifi: increase PNVM load timeout
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (453 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 454/700] netfilter: nf_tables: do not allow to delete table with owner by handle Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:08 ` [PATCH 5.12 456/700] bpf: Fix regression on BPF_OBJ_GET with non-O_RDWR flags Greg Kroah-Hartman
` (250 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Luca Coelho, Sasha Levin
From: Luca Coelho <luciano.coelho@intel.com>
[ Upstream commit 5cc816ef9db1fe03f73e56e9d8f118add9c6efe4 ]
The FW has a watchdog of 200ms in the PNVM load flow, so the driver
should have a slightly higher timeout. Change the timeout from 100ms
to 250ms.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fixes: 70d3ca86b025 ("iwlwifi: mvm: ring the doorbell and wait for PNVM load completion")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210612142637.ba22aec1e2be.I36bfadc28c480f4fc57266c075a79e8ea4a6934f@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/intel/iwlwifi/fw/pnvm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.h b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.h
index e4f91bce222d..61d3d4e0b7d9 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/******************************************************************************
*
- * Copyright(c) 2020 Intel Corporation
+ * Copyright(c) 2020-2021 Intel Corporation
*
*****************************************************************************/
@@ -10,7 +10,7 @@
#include "fw/notif-wait.h"
-#define MVM_UCODE_PNVM_TIMEOUT (HZ / 10)
+#define MVM_UCODE_PNVM_TIMEOUT (HZ / 4)
int iwl_pnvm_load(struct iwl_trans *trans,
struct iwl_notif_wait_data *notif_wait);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 456/700] bpf: Fix regression on BPF_OBJ_GET with non-O_RDWR flags
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (454 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 455/700] iwlwifi: increase PNVM load timeout Greg Kroah-Hartman
@ 2021-07-12 6:08 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 457/700] rtw88: 8822c: fix lc calibration timing Greg Kroah-Hartman
` (249 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:08 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maciej Żenczykowski,
Daniel Borkmann, Lorenz Bauer, Sasha Levin, Greg Kroah-Hartman
From: Maciej Żenczykowski <maze@google.com>
[ Upstream commit 5dec6d96d12d33900ec315972c8e47a73bcc378d ]
This reverts commit d37300ed1821 ("bpf: program: Refuse non-O_RDWR flags
in BPF_OBJ_GET"). It breaks Android userspace which expects to be able to
fetch programs with just read permissions.
See: https://cs.android.com/android/platform/superproject/+/master:frameworks/libs/net/common/native/bpf_syscall_wrappers/include/BpfSyscallWrappers.h;drc=7005c764be23d31fa1d69e826b4a2f6689a8c81e;l=124
Side-note: another option to fix it would be to extend bpf_prog_new_fd()
and to pass in used file mode flags in the same way as we do for maps via
bpf_map_new_fd(). Meaning, they'd end up in anon_inode_getfd() and thus
would be retained for prog fd operations with bpf() syscall. Right now
these flags are not checked with progs since they are immutable for their
lifetime (as opposed to maps which can be updated from user space). In
future this could potentially change with new features, but at that point
it's still fine to do the bpf_prog_new_fd() extension when needed. For a
simple stable fix, a revert is less churn.
Fixes: d37300ed1821 ("bpf: program: Refuse non-O_RDWR flags in BPF_OBJ_GET")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
[ Daniel: added side-note to commit message ]
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Lorenz Bauer <lmb@cloudflare.com>
Acked-by: Greg Kroah-Hartman <gregkh@google.com>
Link: https://lore.kernel.org/bpf/20210618105526.265003-1-zenczykowski@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/bpf/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c
index d2de2abec35b..dc56237d6960 100644
--- a/kernel/bpf/inode.c
+++ b/kernel/bpf/inode.c
@@ -543,7 +543,7 @@ int bpf_obj_get_user(const char __user *pathname, int flags)
return PTR_ERR(raw);
if (type == BPF_TYPE_PROG)
- ret = (f_flags != O_RDWR) ? -EINVAL : bpf_prog_new_fd(raw);
+ ret = bpf_prog_new_fd(raw);
else if (type == BPF_TYPE_MAP)
ret = bpf_map_new_fd(raw, f_flags);
else if (type == BPF_TYPE_LINK)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 457/700] rtw88: 8822c: fix lc calibration timing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (455 preceding siblings ...)
2021-07-12 6:08 ` [PATCH 5.12 456/700] bpf: Fix regression on BPF_OBJ_GET with non-O_RDWR flags Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 458/700] vxlan: add missing rcu_read_lock() in neigh_reduce() Greg Kroah-Hartman
` (248 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Po-Hao Huang, Ping-Ke Shih,
Kalle Valo, Sasha Levin
From: Po-Hao Huang <phhuang@realtek.com>
[ Upstream commit 05684fd583e1acc34dddea283838fbfbed4904a0 ]
Before this patch, we use value from 2 seconds ago to decide
whether we should do lc calibration.
Although this don't happen frequently, fix flow to the way it should be.
Fixes: 7ae7784ec2a8 ("rtw88: 8822c: add LC calibration for RTL8822C")
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210426013252.5665-3-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtw88/rtw8822c.c | 22 ++++++++++---------
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 448922cb2e63..10bb3b5a8c22 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -3529,26 +3529,28 @@ static void rtw8822c_pwrtrack_set(struct rtw_dev *rtwdev, u8 rf_path)
}
}
-static void rtw8822c_pwr_track_path(struct rtw_dev *rtwdev,
- struct rtw_swing_table *swing_table,
- u8 path)
+static void rtw8822c_pwr_track_stats(struct rtw_dev *rtwdev, u8 path)
{
- struct rtw_dm_info *dm_info = &rtwdev->dm_info;
- u8 thermal_value, delta;
+ u8 thermal_value;
if (rtwdev->efuse.thermal_meter[path] == 0xff)
return;
thermal_value = rtw_read_rf(rtwdev, path, RF_T_METER, 0x7e);
-
rtw_phy_pwrtrack_avg(rtwdev, thermal_value, path);
+}
- delta = rtw_phy_pwrtrack_get_delta(rtwdev, path);
+static void rtw8822c_pwr_track_path(struct rtw_dev *rtwdev,
+ struct rtw_swing_table *swing_table,
+ u8 path)
+{
+ struct rtw_dm_info *dm_info = &rtwdev->dm_info;
+ u8 delta;
+ delta = rtw_phy_pwrtrack_get_delta(rtwdev, path);
dm_info->delta_power_index[path] =
rtw_phy_pwrtrack_get_pwridx(rtwdev, swing_table, path, path,
delta);
-
rtw8822c_pwrtrack_set(rtwdev, path);
}
@@ -3559,12 +3561,12 @@ static void __rtw8822c_pwr_track(struct rtw_dev *rtwdev)
rtw_phy_config_swing_table(rtwdev, &swing_table);
+ for (i = 0; i < rtwdev->hal.rf_path_num; i++)
+ rtw8822c_pwr_track_stats(rtwdev, i);
if (rtw_phy_pwrtrack_need_lck(rtwdev))
rtw8822c_do_lck(rtwdev);
-
for (i = 0; i < rtwdev->hal.rf_path_num; i++)
rtw8822c_pwr_track_path(rtwdev, &swing_table, i);
-
}
static void rtw8822c_pwr_track(struct rtw_dev *rtwdev)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 458/700] vxlan: add missing rcu_read_lock() in neigh_reduce()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (456 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 457/700] rtw88: 8822c: fix lc calibration timing Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 459/700] bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc Greg Kroah-Hartman
` (247 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, syzbot,
David S. Miller, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit 85e8b032d6ebb0f698a34dd22c2f13443d905888 ]
syzbot complained in neigh_reduce(), because rcu_read_lock_bh()
is treated differently than rcu_read_lock()
WARNING: suspicious RCU usage
5.13.0-rc6-syzkaller #0 Not tainted
-----------------------------
include/net/addrconf.h:313 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/0:0/5:
#0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline]
#0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2247
#1: ffffc90000ca7da8 ((work_completion)(&port->wq)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2251
#2: ffffffff8bf795c0 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1da/0x3130 net/core/dev.c:4180
stack backtrace:
CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.13.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events ipvlan_process_multicast
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x141/0x1d7 lib/dump_stack.c:120
__in6_dev_get include/net/addrconf.h:313 [inline]
__in6_dev_get include/net/addrconf.h:311 [inline]
neigh_reduce drivers/net/vxlan.c:2167 [inline]
vxlan_xmit+0x34d5/0x4c30 drivers/net/vxlan.c:2919
__netdev_start_xmit include/linux/netdevice.h:4944 [inline]
netdev_start_xmit include/linux/netdevice.h:4958 [inline]
xmit_one net/core/dev.c:3654 [inline]
dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3670
__dev_queue_xmit+0x2133/0x3130 net/core/dev.c:4246
ipvlan_process_multicast+0xa99/0xd70 drivers/net/ipvlan/ipvlan_core.c:287
process_one_work+0x98d/0x1600 kernel/workqueue.c:2276
worker_thread+0x64c/0x1120 kernel/workqueue.c:2422
kthread+0x3b1/0x4a0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Fixes: f564f45c4518 ("vxlan: add ipv6 proxy support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/vxlan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 53dbc67e8a34..a3ec03ce3343 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2164,6 +2164,7 @@ static int neigh_reduce(struct net_device *dev, struct sk_buff *skb, __be32 vni)
struct neighbour *n;
struct nd_msg *msg;
+ rcu_read_lock();
in6_dev = __in6_dev_get(dev);
if (!in6_dev)
goto out;
@@ -2215,6 +2216,7 @@ static int neigh_reduce(struct net_device *dev, struct sk_buff *skb, __be32 vni)
}
out:
+ rcu_read_unlock();
consume_skb(skb);
return NETDEV_TX_OK;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 459/700] bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (457 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 458/700] vxlan: add missing rcu_read_lock() in neigh_reduce() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 460/700] ip6_tunnel: fix GRE6 segmentation Greg Kroah-Hartman
` (246 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bui Quang Minh, Alexei Starovoitov,
Sasha Levin
From: Bui Quang Minh <minhquangbui99@gmail.com>
[ Upstream commit 7dd5d437c258bbf4cc15b35229e5208b87b8b4e0 ]
In 32-bit architecture, the result of sizeof() is a 32-bit integer so
the expression becomes the multiplication between 2 32-bit integer which
can potentially leads to integer overflow. As a result,
bpf_map_area_alloc() allocates less memory than needed.
Fix this by casting 1 operand to u64.
Fixes: 0d2c4f964050 ("bpf: Eliminate rlimit-based memory accounting for sockmap and sockhash maps")
Fixes: 99c51064fb06 ("devmap: Use bpf_map_area_alloc() for allocating hash buckets")
Fixes: 546ac1ffb70d ("bpf: add devmap, a map for storing net device references")
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210613143440.71975-1-minhquangbui99@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/bpf/devmap.c | 4 ++--
net/core/sock_map.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 85d9d1b72a33..b0ab5b915e6d 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -92,7 +92,7 @@ static struct hlist_head *dev_map_create_hash(unsigned int entries,
int i;
struct hlist_head *hash;
- hash = bpf_map_area_alloc(entries * sizeof(*hash), numa_node);
+ hash = bpf_map_area_alloc((u64) entries * sizeof(*hash), numa_node);
if (hash != NULL)
for (i = 0; i < entries; i++)
INIT_HLIST_HEAD(&hash[i]);
@@ -143,7 +143,7 @@ static int dev_map_init_map(struct bpf_dtab *dtab, union bpf_attr *attr)
spin_lock_init(&dtab->index_lock);
} else {
- dtab->netdev_map = bpf_map_area_alloc(dtab->map.max_entries *
+ dtab->netdev_map = bpf_map_area_alloc((u64) dtab->map.max_entries *
sizeof(struct bpf_dtab_netdev *),
dtab->map.numa_node);
if (!dtab->netdev_map)
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index d758fb83c884..ae62e6f96a95 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -44,7 +44,7 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
bpf_map_init_from_attr(&stab->map, attr);
raw_spin_lock_init(&stab->lock);
- stab->sks = bpf_map_area_alloc(stab->map.max_entries *
+ stab->sks = bpf_map_area_alloc((u64) stab->map.max_entries *
sizeof(struct sock *),
stab->map.numa_node);
if (!stab->sks) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 460/700] ip6_tunnel: fix GRE6 segmentation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (458 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 459/700] bpf: Fix integer overflow in argument calculation for bpf_map_area_alloc Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 461/700] net/ipv4: swap flow ports when validating source Greg Kroah-Hartman
` (245 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jakub Kicinski, Vadim Fedorenko,
David S. Miller, Sasha Levin
From: Jakub Kicinski <kuba@kernel.org>
[ Upstream commit a6e3f2985a80ef6a45a17d2d9d9151f17ea3ce07 ]
Commit 6c11fbf97e69 ("ip6_tunnel: add MPLS transmit support")
moved assiging inner_ipproto down from ipxip6_tnl_xmit() to
its callee ip6_tnl_xmit(). The latter is also used by GRE.
Since commit 38720352412a ("gre: Use inner_proto to obtain inner
header protocol") GRE had been depending on skb->inner_protocol
during segmentation. It sets it in gre_build_header() and reads
it in gre_gso_segment(). Changes to ip6_tnl_xmit() overwrite
the protocol, resulting in GSO skbs getting dropped.
Note that inner_protocol is a union with inner_ipproto,
GRE uses the former while the change switched it to the latter
(always setting it to just IPPROTO_GRE).
Restore the original location of skb_set_inner_ipproto(),
it is unclear why it was moved in the first place.
Fixes: 6c11fbf97e69 ("ip6_tunnel: add MPLS transmit support")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv6/ip6_tunnel.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index d42f471b0d65..adbc9bf65d30 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1239,8 +1239,6 @@ route_lookup:
if (max_headroom > dev->needed_headroom)
dev->needed_headroom = max_headroom;
- skb_set_inner_ipproto(skb, proto);
-
err = ip6_tnl_encap(skb, t, &proto, fl6);
if (err)
return err;
@@ -1377,6 +1375,8 @@ ipxip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev,
if (iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6))
return -1;
+ skb_set_inner_ipproto(skb, protocol);
+
err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
protocol);
if (err != 0) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 461/700] net/ipv4: swap flow ports when validating source
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (459 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 460/700] ip6_tunnel: fix GRE6 segmentation Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 462/700] net: broadcom: bcm4908_enet: reset DMA rings sw indexes properly Greg Kroah-Hartman
` (244 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miao Wang, David Ahern,
David S. Miller, Sasha Levin
From: Miao Wang <shankerwangmiao@gmail.com>
[ Upstream commit c69f114d09891adfa3e301a35d9e872b8b7b5a50 ]
When doing source address validation, the flowi4 struct used for
fib_lookup should be in the reverse direction to the given skb.
fl4_dport and fl4_sport returned by fib4_rules_early_flow_dissect
should thus be swapped.
Fixes: 5a847a6e1477 ("net/ipv4: Initialize proto and ports in flow struct")
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv4/fib_frontend.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 84bb707bd88d..647bceab56c2 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -371,6 +371,8 @@ static int __fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
fl4.flowi4_proto = 0;
fl4.fl4_sport = 0;
fl4.fl4_dport = 0;
+ } else {
+ swap(fl4.fl4_sport, fl4.fl4_dport);
}
if (fib_lookup(net, &fl4, &res, 0))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 462/700] net: broadcom: bcm4908_enet: reset DMA rings sw indexes properly
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (460 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 461/700] net/ipv4: swap flow ports when validating source Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 463/700] net: ti: am65-cpsw-nuss: Fix crash when changing number of TX queues Greg Kroah-Hartman
` (243 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Rafał Miłecki,
David S. Miller, Sasha Levin
From: Rafał Miłecki <rafal@milecki.pl>
[ Upstream commit ddeacc4f6494e07cbb6f033627926623f3e7a9d0 ]
Resetting software indexes in bcm4908_dma_alloc_buf_descs() is not
enough as it's called during device probe only. Driver resets DMA on
every .ndo_open callback and it's required to reset indexes then.
This fixes inconsistent rings state and stalled traffic after interface
down & up sequence.
Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c
index 65981931a798..a31984cd0fb7 100644
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -165,9 +165,6 @@ static int bcm4908_dma_alloc_buf_descs(struct bcm4908_enet *enet,
if (!ring->slots)
goto err_free_buf_descs;
- ring->read_idx = 0;
- ring->write_idx = 0;
-
return 0;
err_free_buf_descs:
@@ -295,6 +292,9 @@ static void bcm4908_enet_dma_ring_init(struct bcm4908_enet *enet,
enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR,
(uint32_t)ring->dma_addr);
+
+ ring->read_idx = 0;
+ ring->write_idx = 0;
}
static void bcm4908_enet_dma_uninit(struct bcm4908_enet *enet)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 463/700] net: ti: am65-cpsw-nuss: Fix crash when changing number of TX queues
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (461 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 462/700] net: broadcom: bcm4908_enet: reset DMA rings sw indexes properly Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 464/700] tc-testing: fix list handling Greg Kroah-Hartman
` (242 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vignesh Raghavendra, David S. Miller,
Sasha Levin
From: Vignesh Raghavendra <vigneshr@ti.com>
[ Upstream commit ce8eb4c728ef40b554b4f3d8963f11ed44502e00 ]
When changing number of TX queues using ethtool:
# ethtool -L eth0 tx 1
[ 135.301047] Unable to handle kernel paging request at virtual address 00000000af5d0000
[...]
[ 135.525128] Call trace:
[ 135.525142] dma_release_from_dev_coherent+0x2c/0xb0
[ 135.525148] dma_free_attrs+0x54/0xe0
[ 135.525156] k3_cppi_desc_pool_destroy+0x50/0xa0
[ 135.525164] am65_cpsw_nuss_remove_tx_chns+0x88/0xdc
[ 135.525171] am65_cpsw_set_channels+0x3c/0x70
[...]
This is because k3_cppi_desc_pool_destroy() which is called after
k3_udma_glue_release_tx_chn() in am65_cpsw_nuss_remove_tx_chns()
references struct device that is unregistered at the end of
k3_udma_glue_release_tx_chn()
Therefore the right order is to call k3_cppi_desc_pool_destroy() and
destroy desc pool before calling k3_udma_glue_release_tx_chn().
Fix this throughout the driver.
Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ti/am65-cpsw-nuss.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 638d7b03be4b..a98182b2d19b 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1506,12 +1506,12 @@ static void am65_cpsw_nuss_free_tx_chns(void *data)
for (i = 0; i < common->tx_ch_num; i++) {
struct am65_cpsw_tx_chn *tx_chn = &common->tx_chns[i];
- if (!IS_ERR_OR_NULL(tx_chn->tx_chn))
- k3_udma_glue_release_tx_chn(tx_chn->tx_chn);
-
if (!IS_ERR_OR_NULL(tx_chn->desc_pool))
k3_cppi_desc_pool_destroy(tx_chn->desc_pool);
+ if (!IS_ERR_OR_NULL(tx_chn->tx_chn))
+ k3_udma_glue_release_tx_chn(tx_chn->tx_chn);
+
memset(tx_chn, 0, sizeof(*tx_chn));
}
}
@@ -1531,12 +1531,12 @@ void am65_cpsw_nuss_remove_tx_chns(struct am65_cpsw_common *common)
netif_napi_del(&tx_chn->napi_tx);
- if (!IS_ERR_OR_NULL(tx_chn->tx_chn))
- k3_udma_glue_release_tx_chn(tx_chn->tx_chn);
-
if (!IS_ERR_OR_NULL(tx_chn->desc_pool))
k3_cppi_desc_pool_destroy(tx_chn->desc_pool);
+ if (!IS_ERR_OR_NULL(tx_chn->tx_chn))
+ k3_udma_glue_release_tx_chn(tx_chn->tx_chn);
+
memset(tx_chn, 0, sizeof(*tx_chn));
}
}
@@ -1624,11 +1624,11 @@ static void am65_cpsw_nuss_free_rx_chns(void *data)
rx_chn = &common->rx_chns;
- if (!IS_ERR_OR_NULL(rx_chn->rx_chn))
- k3_udma_glue_release_rx_chn(rx_chn->rx_chn);
-
if (!IS_ERR_OR_NULL(rx_chn->desc_pool))
k3_cppi_desc_pool_destroy(rx_chn->desc_pool);
+
+ if (!IS_ERR_OR_NULL(rx_chn->rx_chn))
+ k3_udma_glue_release_rx_chn(rx_chn->rx_chn);
}
static int am65_cpsw_nuss_init_rx_chns(struct am65_cpsw_common *common)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 464/700] tc-testing: fix list handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (462 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 463/700] net: ti: am65-cpsw-nuss: Fix crash when changing number of TX queues Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 465/700] RDMA/hns: Force rewrite inline flag of WQE Greg Kroah-Hartman
` (241 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Marcelo Ricardo Leitner,
David S. Miller, Sasha Levin
From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
[ Upstream commit b4fd096cbb871340be837491fa1795864a48b2d9 ]
python lists don't have an 'add' method, but 'append'.
Fixes: 14e5175e9e04 ("tc-testing: introduce scapyPlugin for basic traffic")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
index 229ee185b27e..a7b21658af9b 100644
--- a/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
+++ b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
@@ -36,7 +36,7 @@ class SubPlugin(TdcPlugin):
for k in scapy_keys:
if k not in scapyinfo:
keyfail = True
- missing_keys.add(k)
+ missing_keys.append(k)
if keyfail:
print('{}: Scapy block present in the test, but is missing info:'
.format(self.sub_class))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 465/700] RDMA/hns: Force rewrite inline flag of WQE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (463 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 464/700] tc-testing: fix list handling Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 466/700] RDMA/hns: Fix uninitialized variable Greg Kroah-Hartman
` (240 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lang Cheng, Weihang Li,
Jason Gunthorpe, Sasha Levin
From: Lang Cheng <chenglang@huawei.com>
[ Upstream commit e13026578b727becf2614f34a4f35e7f0ed21be1 ]
When a non-inline WR reuses a WQE that was used for inline last time, the
remaining inline flag should be cleared.
Fixes: 62490fd5a865 ("RDMA/hns: Avoid unnecessary memset on WQEs in post_send")
Link: https://lore.kernel.org/r/1624011020-16992-2-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 3344b80ecf04..851acc9d050f 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -268,8 +268,6 @@ static int set_rc_inl(struct hns_roce_qp *qp, const struct ib_send_wr *wr,
dseg += sizeof(struct hns_roce_v2_rc_send_wqe);
- roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_INLINE_S, 1);
-
if (msg_len <= HNS_ROCE_V2_MAX_RC_INL_INN_SZ) {
roce_set_bit(rc_sq_wqe->byte_20,
V2_RC_SEND_WQE_BYTE_20_INL_TYPE_S, 0);
@@ -314,6 +312,8 @@ static int set_rwqe_data_seg(struct ib_qp *ibqp, const struct ib_send_wr *wr,
V2_RC_SEND_WQE_BYTE_20_MSG_START_SGE_IDX_S,
(*sge_ind) & (qp->sge.sge_cnt - 1));
+ roce_set_bit(rc_sq_wqe->byte_4, V2_RC_SEND_WQE_BYTE_4_INLINE_S,
+ !!(wr->send_flags & IB_SEND_INLINE));
if (wr->send_flags & IB_SEND_INLINE)
return set_rc_inl(qp, wr, rc_sq_wqe, sge_ind);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 466/700] RDMA/hns: Fix uninitialized variable
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (464 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 465/700] RDMA/hns: Force rewrite inline flag of WQE Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 467/700] ieee802154: hwsim: Fix memory leak in hwsim_add_one Greg Kroah-Hartman
` (239 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yixing Liu, Weihang Li,
Jason Gunthorpe, Sasha Levin
From: Yixing Liu <liuyixing1@huawei.com>
[ Upstream commit 2a38c0f10e6d7d28e06ff1eb1f350804c4850275 ]
A random value will be returned if the condition below is not met, so it
needs to be initialized.
Fixes: 9ea9a53ea93b ("RDMA/hns: Add mapped page count checking for MTR")
Link: https://lore.kernel.org/r/1624011020-16992-3-git-send-email-liweihang@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/hns/hns_roce_mr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index 79b3c3023fe7..b8454dcb0318 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -776,7 +776,7 @@ int hns_roce_mtr_map(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
struct ib_device *ibdev = &hr_dev->ib_dev;
struct hns_roce_buf_region *r;
unsigned int i, mapped_cnt;
- int ret;
+ int ret = 0;
/*
* Only use the first page address as root ba when hopnum is 0, this
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 467/700] ieee802154: hwsim: Fix memory leak in hwsim_add_one
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (465 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 466/700] RDMA/hns: Fix uninitialized variable Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 468/700] ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl() Greg Kroah-Hartman
` (238 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, syzbot+b80c9959009a9325cdff,
Dongliang Mu, Alexander Aring, Stefan Schmidt, Sasha Levin
From: Dongliang Mu <mudongliangabcd@gmail.com>
[ Upstream commit 28a5501c3383f0e6643012c187b7c2027ef42aea ]
No matter from hwsim_remove or hwsim_del_radio_nl, hwsim_del fails to
remove the entry in the edges list. Take the example below, phy0, phy1
and e0 will be deleted, resulting in e1 not freed and accessed in the
future.
hwsim_phys
|
------------------------------
| |
phy0 (edges) phy1 (edges)
----> e1 (idx = 1) ----> e0 (idx = 0)
Fix this by deleting and freeing all the entries in the edges list
between hwsim_edge_unsubscribe_me and list_del(&phy->list).
Reported-by: syzbot+b80c9959009a9325cdff@syzkaller.appspotmail.com
Fixes: 1c9f4a3fce77 ("ieee802154: hwsim: fix rcu handling")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210616020901.2759466-1-mudongliangabcd@gmail.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ieee802154/mac802154_hwsim.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
index 7a168170224a..6d479df2d9e5 100644
--- a/drivers/net/ieee802154/mac802154_hwsim.c
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -824,12 +824,17 @@ err_pib:
static void hwsim_del(struct hwsim_phy *phy)
{
struct hwsim_pib *pib;
+ struct hwsim_edge *e;
hwsim_edge_unsubscribe_me(phy);
list_del(&phy->list);
rcu_read_lock();
+ list_for_each_entry_rcu(e, &phy->edges, list) {
+ list_del_rcu(&e->list);
+ hwsim_free_edge(e);
+ }
pib = rcu_dereference(phy->pib);
rcu_read_unlock();
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 468/700] ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (466 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 467/700] ieee802154: hwsim: Fix memory leak in hwsim_add_one Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 469/700] bpf: Fix null ptr deref with mixed tail calls and subprogs Greg Kroah-Hartman
` (237 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Alexander Aring,
Stefan Schmidt, syzbot, Alexander Aring, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit 0303b30375dff5351a79cc2c3c87dfa4fda29bed ]
Both MAC802154_HWSIM_ATTR_RADIO_ID and MAC802154_HWSIM_ATTR_RADIO_EDGE
must be present to avoid a crash.
Fixes: f25da51fdc38 ("ieee802154: hwsim: add replacement for fakelb")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Stefan Schmidt <stefan@datenfreihafen.org>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210621180244.882076-1-eric.dumazet@gmail.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ieee802154/mac802154_hwsim.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
index 6d479df2d9e5..626e1ce817fc 100644
--- a/drivers/net/ieee802154/mac802154_hwsim.c
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -480,7 +480,7 @@ static int hwsim_del_edge_nl(struct sk_buff *msg, struct genl_info *info)
struct hwsim_edge *e;
u32 v0, v1;
- if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID] &&
+ if (!info->attrs[MAC802154_HWSIM_ATTR_RADIO_ID] ||
!info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE])
return -EINVAL;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 469/700] bpf: Fix null ptr deref with mixed tail calls and subprogs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (467 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 468/700] ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 470/700] drm/msm/dp: handle irq_hpd with sink_count = 0 correctly Greg Kroah-Hartman
` (236 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jussi Maki, John Fastabend,
Alexei Starovoitov, Daniel Borkmann, Sasha Levin
From: John Fastabend <john.fastabend@gmail.com>
[ Upstream commit 7506d211b932870155bcb39e3dd9e39fab45a7c7 ]
The sub-programs prog->aux->poke_tab[] is populated in jit_subprogs() and
then used when emitting 'BPF_JMP|BPF_TAIL_CALL' insn->code from the
individual JITs. The poke_tab[] to use is stored in the insn->imm by
the code adding it to that array slot. The JIT then uses imm to find the
right entry for an individual instruction. In the x86 bpf_jit_comp.c
this is done by calling emit_bpf_tail_call_direct with the poke_tab[]
of the imm value.
However, we observed the below null-ptr-deref when mixing tail call
programs with subprog programs. For this to happen we just need to
mix bpf-2-bpf calls and tailcalls with some extra calls or instructions
that would be patched later by one of the fixup routines. So whats
happening?
Before the fixup_call_args() -- where the jit op is done -- various
code patching is done by do_misc_fixups(). This may increase the
insn count, for example when we patch map_lookup_up using map_gen_lookup
hook. This does two things. First, it means the instruction index,
insn_idx field, of a tail call instruction will move by a 'delta'.
In verifier code,
struct bpf_jit_poke_descriptor desc = {
.reason = BPF_POKE_REASON_TAIL_CALL,
.tail_call.map = BPF_MAP_PTR(aux->map_ptr_state),
.tail_call.key = bpf_map_key_immediate(aux),
.insn_idx = i + delta,
};
Then subprog start values subprog_info[i].start will be updated
with the delta and any poke descriptor index will also be updated
with the delta in adjust_poke_desc(). If we look at the adjust
subprog starts though we see its only adjusted when the delta
occurs before the new instructions,
/* NOTE: fake 'exit' subprog should be updated as well. */
for (i = 0; i <= env->subprog_cnt; i++) {
if (env->subprog_info[i].start <= off)
continue;
Earlier subprograms are not changed because their start values
are not moved. But, adjust_poke_desc() does the offset + delta
indiscriminately. The result is poke descriptors are potentially
corrupted.
Then in jit_subprogs() we only populate the poke_tab[]
when the above insn_idx is less than the next subprogram start. From
above we corrupted our insn_idx so we might incorrectly assume a
poke descriptor is not used in a subprogram omitting it from the
subprogram. And finally when the jit runs it does the deref of poke_tab
when emitting the instruction and crashes with below. Because earlier
step omitted the poke descriptor.
The fix is straight forward with above context. Simply move same logic
from adjust_subprog_starts() into adjust_poke_descs() and only adjust
insn_idx when needed.
[ 82.396354] bpf_testmod: version magic '5.12.0-rc2alu+ SMP preempt mod_unload ' should be '5.12.0+ SMP preempt mod_unload '
[ 82.623001] loop10: detected capacity change from 0 to 8
[ 88.487424] ==================================================================
[ 88.487438] BUG: KASAN: null-ptr-deref in do_jit+0x184a/0x3290
[ 88.487455] Write of size 8 at addr 0000000000000008 by task test_progs/5295
[ 88.487471] CPU: 7 PID: 5295 Comm: test_progs Tainted: G I 5.12.0+ #386
[ 88.487483] Hardware name: Dell Inc. Precision 5820 Tower/002KVM, BIOS 1.9.2 01/24/2019
[ 88.487490] Call Trace:
[ 88.487498] dump_stack+0x93/0xc2
[ 88.487515] kasan_report.cold+0x5f/0xd8
[ 88.487530] ? do_jit+0x184a/0x3290
[ 88.487542] do_jit+0x184a/0x3290
...
[ 88.487709] bpf_int_jit_compile+0x248/0x810
...
[ 88.487765] bpf_check+0x3718/0x5140
...
[ 88.487920] bpf_prog_load+0xa22/0xf10
Fixes: a748c6975dea3 ("bpf: propagate poke descriptors to subprograms")
Reported-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/bpf/verifier.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 2423b4e918b9..87c4ea3b3cb7 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -10877,7 +10877,7 @@ static void adjust_subprog_starts(struct bpf_verifier_env *env, u32 off, u32 len
}
}
-static void adjust_poke_descs(struct bpf_prog *prog, u32 len)
+static void adjust_poke_descs(struct bpf_prog *prog, u32 off, u32 len)
{
struct bpf_jit_poke_descriptor *tab = prog->aux->poke_tab;
int i, sz = prog->aux->size_poke_tab;
@@ -10885,6 +10885,8 @@ static void adjust_poke_descs(struct bpf_prog *prog, u32 len)
for (i = 0; i < sz; i++) {
desc = &tab[i];
+ if (desc->insn_idx <= off)
+ continue;
desc->insn_idx += len - 1;
}
}
@@ -10905,7 +10907,7 @@ static struct bpf_prog *bpf_patch_insn_data(struct bpf_verifier_env *env, u32 of
if (adjust_insn_aux_data(env, new_prog, off, len))
return NULL;
adjust_subprog_starts(env, off, len);
- adjust_poke_descs(new_prog, len);
+ adjust_poke_descs(new_prog, off, len);
return new_prog;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 470/700] drm/msm/dp: handle irq_hpd with sink_count = 0 correctly
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (468 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 469/700] bpf: Fix null ptr deref with mixed tail calls and subprogs Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 471/700] drm/msm: Fix error return code in msm_drm_init() Greg Kroah-Hartman
` (235 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kuogee Hsieh, Stephen Boyd,
Rob Clark, Sasha Levin
From: Kuogee Hsieh <khsieh@codeaurora.org>
[ Upstream commit f21c8a276c2daddddf58d483b49b01d0603f0316 ]
irq_hpd interrupt should be handled after dongle plugged in and
before dongle unplugged. Hence irq_hpd interrupt is enabled at
the end of the plugin handle and disabled at the beginning of
unplugged handle. Current irq_hpd with sink_count = 0 is wrongly
handled same as the dongle unplugged which tears down the mainlink
and disables the phy. This patch fixes this problem by only tearing
down the mainlink but keeping phy enabled at irq_hpd with
sink_count = 0 handle so that next irq_hpd with sink_count =1 can be
handled by setup mainlink only. This patch also set dongle into D3
(power off) state at end of handling irq_hpd with sink_count = 0.
Changes in v2:
-- add ctrl->phy_Power_count
Changes in v3:
-- del ctrl->phy_Power_count
-- add phy_power_off to dp_ctrl_off_link_stream()
Changes in v4:
-- return immediately if clock disable failed at dp_ctrl_off_link_stream()
Changes in v5:
-- set dongle to D3 (power off) state at dp_ctrl_off_link_stream()
Changes in v6:
-- add Fixes tag
Fixes: ea9f337ce81e ("drm/msm/dp: reset dp controller only at boot up and pm_resume")
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1621635930-30161-1-git-send-email-khsieh@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 5 +--
drivers/gpu/drm/msm/dp/dp_ctrl.c | 55 ++++++++++++++++++++++++++++
drivers/gpu/drm/msm/dp/dp_ctrl.h | 2 +
drivers/gpu/drm/msm/dp/dp_display.c | 57 +++++++++++++++++++++--------
4 files changed, 101 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index b1a9b1b98f5f..f4f53f23e331 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -582,10 +582,9 @@ void dp_catalog_ctrl_hpd_config(struct dp_catalog *dp_catalog)
u32 reftimer = dp_read_aux(catalog, REG_DP_DP_HPD_REFTIMER);
- /* enable HPD interrupts */
+ /* enable HPD plug and unplug interrupts */
dp_catalog_hpd_config_intr(dp_catalog,
- DP_DP_HPD_PLUG_INT_MASK | DP_DP_IRQ_HPD_INT_MASK
- | DP_DP_HPD_UNPLUG_INT_MASK | DP_DP_HPD_REPLUG_INT_MASK, true);
+ DP_DP_HPD_PLUG_INT_MASK | DP_DP_HPD_UNPLUG_INT_MASK, true);
/* Configure REFTIMER and enable it */
reftimer |= DP_DP_HPD_REFTIMER_ENABLE;
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index 1390f3547fde..2a8955ca70d1 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -1809,6 +1809,61 @@ end:
return ret;
}
+int dp_ctrl_off_link_stream(struct dp_ctrl *dp_ctrl)
+{
+ struct dp_ctrl_private *ctrl;
+ struct dp_io *dp_io;
+ struct phy *phy;
+ int ret;
+
+ ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl);
+ dp_io = &ctrl->parser->io;
+ phy = dp_io->phy;
+
+ /* set dongle to D3 (power off) mode */
+ dp_link_psm_config(ctrl->link, &ctrl->panel->link_info, true);
+
+ dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, false);
+
+ ret = dp_power_clk_enable(ctrl->power, DP_STREAM_PM, false);
+ if (ret) {
+ DRM_ERROR("Failed to disable pixel clocks. ret=%d\n", ret);
+ return ret;
+ }
+
+ ret = dp_power_clk_enable(ctrl->power, DP_CTRL_PM, false);
+ if (ret) {
+ DRM_ERROR("Failed to disable link clocks. ret=%d\n", ret);
+ return ret;
+ }
+
+ phy_power_off(phy);
+
+ /* aux channel down, reinit phy */
+ phy_exit(phy);
+ phy_init(phy);
+
+ DRM_DEBUG_DP("DP off link/stream done\n");
+ return ret;
+}
+
+void dp_ctrl_off_phy(struct dp_ctrl *dp_ctrl)
+{
+ struct dp_ctrl_private *ctrl;
+ struct dp_io *dp_io;
+ struct phy *phy;
+
+ ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl);
+ dp_io = &ctrl->parser->io;
+ phy = dp_io->phy;
+
+ dp_catalog_ctrl_reset(ctrl->catalog);
+
+ phy_exit(phy);
+
+ DRM_DEBUG_DP("DP off phy done\n");
+}
+
int dp_ctrl_off(struct dp_ctrl *dp_ctrl)
{
struct dp_ctrl_private *ctrl;
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.h b/drivers/gpu/drm/msm/dp/dp_ctrl.h
index a836bd358447..25e4f7512252 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.h
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.h
@@ -23,6 +23,8 @@ int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool flip, bool reset);
void dp_ctrl_host_deinit(struct dp_ctrl *dp_ctrl);
int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl);
int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl);
+int dp_ctrl_off_link_stream(struct dp_ctrl *dp_ctrl);
+void dp_ctrl_off_phy(struct dp_ctrl *dp_ctrl);
int dp_ctrl_off(struct dp_ctrl *dp_ctrl);
void dp_ctrl_push_idle(struct dp_ctrl *dp_ctrl);
void dp_ctrl_isr(struct dp_ctrl *dp_ctrl);
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 1784e119269b..cdec0a367a2c 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -346,6 +346,12 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp)
dp->dp_display.max_pclk_khz = DP_MAX_PIXEL_CLK_KHZ;
dp->dp_display.max_dp_lanes = dp->parser->max_dp_lanes;
+ /*
+ * set sink to normal operation mode -- D0
+ * before dpcd read
+ */
+ dp_link_psm_config(dp->link, &dp->panel->link_info, false);
+
dp_link_reset_phy_params_vx_px(dp->link);
rc = dp_ctrl_on_link(dp->ctrl);
if (rc) {
@@ -414,11 +420,6 @@ static int dp_display_usbpd_configure_cb(struct device *dev)
dp_display_host_init(dp, false);
- /*
- * set sink to normal operation mode -- D0
- * before dpcd read
- */
- dp_link_psm_config(dp->link, &dp->panel->link_info, false);
rc = dp_display_process_hpd_high(dp);
end:
return rc;
@@ -579,6 +580,10 @@ static int dp_hpd_plug_handle(struct dp_display_private *dp, u32 data)
dp_add_event(dp, EV_CONNECT_PENDING_TIMEOUT, 0, tout);
}
+ /* enable HDP irq_hpd/replug interrupt */
+ dp_catalog_hpd_config_intr(dp->catalog,
+ DP_DP_IRQ_HPD_INT_MASK | DP_DP_HPD_REPLUG_INT_MASK, true);
+
mutex_unlock(&dp->event_mutex);
/* uevent will complete connection part */
@@ -628,7 +633,26 @@ static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32 data)
mutex_lock(&dp->event_mutex);
state = dp->hpd_state;
- if (state == ST_DISCONNECT_PENDING || state == ST_DISCONNECTED) {
+
+ /* disable irq_hpd/replug interrupts */
+ dp_catalog_hpd_config_intr(dp->catalog,
+ DP_DP_IRQ_HPD_INT_MASK | DP_DP_HPD_REPLUG_INT_MASK, false);
+
+ /* unplugged, no more irq_hpd handle */
+ dp_del_event(dp, EV_IRQ_HPD_INT);
+
+ if (state == ST_DISCONNECTED) {
+ /* triggered by irq_hdp with sink_count = 0 */
+ if (dp->link->sink_count == 0) {
+ dp_ctrl_off_phy(dp->ctrl);
+ hpd->hpd_high = 0;
+ dp->core_initialized = false;
+ }
+ mutex_unlock(&dp->event_mutex);
+ return 0;
+ }
+
+ if (state == ST_DISCONNECT_PENDING) {
mutex_unlock(&dp->event_mutex);
return 0;
}
@@ -642,9 +666,8 @@ static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32 data)
dp->hpd_state = ST_DISCONNECT_PENDING;
- /* disable HPD plug interrupt until disconnect is done */
- dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK
- | DP_DP_IRQ_HPD_INT_MASK, false);
+ /* disable HPD plug interrupts */
+ dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK, false);
hpd->hpd_high = 0;
@@ -660,8 +683,8 @@ static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32 data)
/* signal the disconnect event early to ensure proper teardown */
dp_display_handle_plugged_change(g_dp_display, false);
- dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK |
- DP_DP_IRQ_HPD_INT_MASK, true);
+ /* enable HDP plug interrupt to prepare for next plugin */
+ dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK, true);
/* uevent will complete disconnection part */
mutex_unlock(&dp->event_mutex);
@@ -692,7 +715,7 @@ static int dp_irq_hpd_handle(struct dp_display_private *dp, u32 data)
/* irq_hpd can happen at either connected or disconnected state */
state = dp->hpd_state;
- if (state == ST_DISPLAY_OFF) {
+ if (state == ST_DISPLAY_OFF || state == ST_SUSPENDED) {
mutex_unlock(&dp->event_mutex);
return 0;
}
@@ -910,9 +933,13 @@ static int dp_display_disable(struct dp_display_private *dp, u32 data)
dp_display->audio_enabled = false;
- dp_ctrl_off(dp->ctrl);
-
- dp->core_initialized = false;
+ /* triggered by irq_hpd with sink_count = 0 */
+ if (dp->link->sink_count == 0) {
+ dp_ctrl_off_link_stream(dp->ctrl);
+ } else {
+ dp_ctrl_off(dp->ctrl);
+ dp->core_initialized = false;
+ }
dp_display->power_on = false;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 471/700] drm/msm: Fix error return code in msm_drm_init()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (469 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 470/700] drm/msm/dp: handle irq_hpd with sink_count = 0 correctly Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 472/700] drm/msm/dpu: Fix error return code in dpu_mdss_init() Greg Kroah-Hartman
` (234 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei,
Dmitry Baryshkov, Rob Clark, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit a1c9b1e3bdd6d8dc43c18699772fb6cf4497d45a ]
Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.
Fixes: 7f9743abaa79 ("drm/msm: validate display and event threads")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210508022836.1777-1-thunder.leizhen@huawei.com
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/msm_drv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 18ea1c66de71..f206c53c27e0 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -521,6 +521,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
priv->event_thread[i].worker = kthread_create_worker(0,
"crtc_event:%d", priv->event_thread[i].crtc_id);
if (IS_ERR(priv->event_thread[i].worker)) {
+ ret = PTR_ERR(priv->event_thread[i].worker);
DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n");
goto err_msm_uninit;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 472/700] drm/msm/dpu: Fix error return code in dpu_mdss_init()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (470 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 471/700] drm/msm: Fix error return code in msm_drm_init() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 473/700] mac80211: remove iwlwifi specific workaround NDPs of null_response Greg Kroah-Hartman
` (233 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei, Stephen Boyd,
Dmitry Baryshkov, Rob Clark, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit e020ac961ce5d038de66dc7f6ffca98899e9a3f3 ]
The error code returned by platform_get_irq() is stored in 'irq', it's
forgotten to be copied to 'ret' before being returned. As a result, the
value 0 of 'ret' is returned incorrectly.
After the above fix is completed, initializing the local variable 'ret'
to 0 is no longer needed, remove it.
In addition, when dpu_mdss_init() is successfully returned, the value of
'ret' is always 0. Therefore, replace "return ret" with "return 0" to make
the code clearer.
Fixes: 070e64dc1bbc ("drm/msm/dpu: Convert to a chained irq chip")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210510063805.3262-2-thunder.leizhen@huawei.com
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
index 3416e9617ee9..96f3908e4c5b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
@@ -222,7 +222,7 @@ int dpu_mdss_init(struct drm_device *dev)
struct msm_drm_private *priv = dev->dev_private;
struct dpu_mdss *dpu_mdss;
struct dss_module_power *mp;
- int ret = 0;
+ int ret;
int irq;
dpu_mdss = devm_kzalloc(dev->dev, sizeof(*dpu_mdss), GFP_KERNEL);
@@ -250,8 +250,10 @@ int dpu_mdss_init(struct drm_device *dev)
goto irq_domain_error;
irq = platform_get_irq(pdev, 0);
- if (irq < 0)
+ if (irq < 0) {
+ ret = irq;
goto irq_error;
+ }
irq_set_chained_handler_and_data(irq, dpu_mdss_irq,
dpu_mdss);
@@ -260,7 +262,7 @@ int dpu_mdss_init(struct drm_device *dev)
pm_runtime_enable(dev->dev);
- return ret;
+ return 0;
irq_error:
_dpu_mdss_irq_domain_fini(dpu_mdss);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 473/700] mac80211: remove iwlwifi specific workaround NDPs of null_response
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (471 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 472/700] drm/msm/dpu: Fix error return code in dpu_mdss_init() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 474/700] net: bcmgenet: Fix attaching to PYH failed on RPi 4B Greg Kroah-Hartman
` (232 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ping-Ke Shih, Johannes Berg, Sasha Levin
From: Ping-Ke Shih <pkshih@realtek.com>
[ Upstream commit 744757e46bf13ec3a7b3507d17ab3faab9516d43 ]
Remove the remaining workaround that is not removed by the
commit e41eb3e408de ("mac80211: remove iwlwifi specific workaround
that broke sta NDP tx")
Fixes: 41cbb0f5a295 ("mac80211: add support for HE")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20210623134826.10318-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/sta_info.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index f2fb69da9b6e..13250cadb420 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1398,11 +1398,6 @@ static void ieee80211_send_null_response(struct sta_info *sta, int tid,
struct ieee80211_tx_info *info;
struct ieee80211_chanctx_conf *chanctx_conf;
- /* Don't send NDPs when STA is connected HE */
- if (sdata->vif.type == NL80211_IFTYPE_STATION &&
- !(sdata->u.mgd.flags & IEEE80211_STA_DISABLE_HE))
- return;
-
if (qos) {
fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_NULLFUNC |
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 474/700] net: bcmgenet: Fix attaching to PYH failed on RPi 4B
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (472 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 473/700] mac80211: remove iwlwifi specific workaround NDPs of null_response Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 475/700] ipv6: exthdrs: do not blindly use init_net Greg Kroah-Hartman
` (231 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jian-Hong Pan, Florian Fainelli,
David S. Miller, Sasha Levin
From: Jian-Hong Pan <jhp@endlessos.org>
[ Upstream commit b2ac9800cfe0f8da16abc4e74e003440361c112e ]
The Broadcom UniMAC MDIO bus from mdio-bcm-unimac module comes too late.
So, GENET cannot find the ethernet PHY on UniMAC MDIO bus. This leads
GENET fail to attach the PHY as following log:
bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
...
could not attach to PHY
bcmgenet fd580000.ethernet eth0: failed to connect to PHY
uart-pl011 fe201000.serial: no DMA platform data
libphy: bcmgenet MII bus: probed
...
unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
This patch adds the soft dependency to load mdio-bcm-unimac module
before genet module to avoid the issue.
Fixes: 9a4e79697009 ("net: bcmgenet: utilize generic Broadcom UniMAC MDIO controller driver")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=213485
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index fcca023f22e5..41f7f078cd27 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -4296,3 +4296,4 @@ MODULE_AUTHOR("Broadcom Corporation");
MODULE_DESCRIPTION("Broadcom GENET Ethernet controller driver");
MODULE_ALIAS("platform:bcmgenet");
MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: mdio-bcm-unimac");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 475/700] ipv6: exthdrs: do not blindly use init_net
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (473 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 474/700] net: bcmgenet: Fix attaching to PYH failed on RPi 4B Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 476/700] can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0 Greg Kroah-Hartman
` (230 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Tom Herbert, Coco Li,
David S. Miller, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit bcc3f2a829b9edbe3da5fb117ee5a63686d31834 ]
I see no reason why max_dst_opts_cnt and max_hbh_opts_cnt
are fetched from the initial net namespace.
The other sysctls (max_dst_opts_len & max_hbh_opts_len)
are in fact already using the current ns.
Note: it is not clear why ipv6_destopt_rcv() use two ways to
get to the netns :
1) dev_net(dst->dev)
Originally used to increment IPSTATS_MIB_INHDRERRORS
2) dev_net(skb->dev)
Tom used this variant in his patch.
Maybe this calls to use ipv6_skb_net() instead ?
Fixes: 47d3d7ac656a ("ipv6: Implement limits on Hop-by-Hop and Destination options")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <tom@quantonium.net>
Cc: Coco Li <lixiaoyan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv6/exthdrs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 6126f8bf94b3..a9e1d7918d14 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -306,7 +306,7 @@ fail_and_free:
#endif
if (ip6_parse_tlv(tlvprocdestopt_lst, skb,
- init_net.ipv6.sysctl.max_dst_opts_cnt)) {
+ net->ipv6.sysctl.max_dst_opts_cnt)) {
skb->transport_header += extlen;
opt = IP6CB(skb);
#if IS_ENABLED(CONFIG_IPV6_MIP6)
@@ -1036,7 +1036,7 @@ fail_and_free:
opt->flags |= IP6SKB_HOPBYHOP;
if (ip6_parse_tlv(tlvprochopopt_lst, skb,
- init_net.ipv6.sysctl.max_hbh_opts_cnt)) {
+ net->ipv6.sysctl.max_hbh_opts_cnt)) {
skb->transport_header += extlen;
opt = IP6CB(skb);
opt->nhoff = sizeof(struct ipv6hdr);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 476/700] can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (474 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 475/700] ipv6: exthdrs: do not blindly use init_net Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 477/700] bpf: Do not change gso_size during bpf_skb_change_proto() Greg Kroah-Hartman
` (229 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Norbert Slusarek, Oleksij Rempel,
Marc Kleine-Budde, Sasha Levin
From: Norbert Slusarek <nslusarek@gmx.net>
[ Upstream commit aaf473d0100f64abc88560e2bea905805bcf2a8e ]
If optval != NULL and optlen == 0 are specified for SO_J1939_FILTER in
j1939_sk_setsockopt(), memdup_sockptr() will return ZERO_PTR for 0
size allocation. The new filter will be mistakenly assigned ZERO_PTR.
This patch checks for optlen != 0 and filter will be assigned NULL in
case of optlen == 0.
Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/r/20210620123842.117975-1-nslusarek@gmx.net
Signed-off-by: Norbert Slusarek <nslusarek@gmx.net>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/can/j1939/socket.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c
index fce8bc8afeb7..e1a399821238 100644
--- a/net/can/j1939/socket.c
+++ b/net/can/j1939/socket.c
@@ -676,7 +676,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname,
switch (optname) {
case SO_J1939_FILTER:
- if (!sockptr_is_null(optval)) {
+ if (!sockptr_is_null(optval) && optlen != 0) {
struct j1939_filter *f;
int c;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 477/700] bpf: Do not change gso_size during bpf_skb_change_proto()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (475 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 476/700] can: j1939: j1939_sk_setsockopt(): prevent allocation of j1939 filter for optlen == 0 Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 478/700] i40e: Fix error handling in i40e_vsi_open Greg Kroah-Hartman
` (228 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Maciej Żenczykowski,
Daniel Borkmann, Dongseok Yi, Willem de Bruijn, Sasha Levin
From: Maciej Żenczykowski <maze@google.com>
[ Upstream commit 364745fbe981a4370f50274475da4675661104df ]
This is technically a backwards incompatible change in behaviour, but I'm
going to argue that it is very unlikely to break things, and likely to fix
*far* more then it breaks.
In no particular order, various reasons follow:
(a) I've long had a bug assigned to myself to debug a super rare kernel crash
on Android Pixel phones which can (per stacktrace) be traced back to BPF clat
IPv6 to IPv4 protocol conversion causing some sort of ugly failure much later
on during transmit deep in the GSO engine, AFAICT precisely because of this
change to gso_size, though I've never been able to manually reproduce it. I
believe it may be related to the particular network offload support of attached
USB ethernet dongle being used for tethering off of an IPv6-only cellular
connection. The reason might be we end up with more segments than max permitted,
or with a GSO packet with only one segment... (either way we break some
assumption and hit a BUG_ON)
(b) There is no check that the gso_size is > 20 when reducing it by 20, so we
might end up with a negative (or underflowing) gso_size or a gso_size of 0.
This can't possibly be good. Indeed this is probably somehow exploitable (or
at least can result in a kernel crash) by delivering crafted packets and perhaps
triggering an infinite loop or a divide by zero... As a reminder: gso_size (MSS)
is related to MTU, but not directly derived from it: gso_size/MSS may be
significantly smaller then one would get by deriving from local MTU. And on
some NICs (which do loose MTU checking on receive, it may even potentially be
larger, for example my work pc with 1500 MTU can receive 1520 byte frames [and
sometimes does due to bugs in a vendor plat46 implementation]). Indeed even just
going from 21 to 1 is potentially problematic because it increases the number
of segments by a factor of 21 (think DoS, or some other crash due to too many
segments).
(c) It's always safe to not increase the gso_size, because it doesn't result in
the max packet size increasing. So the skb_increase_gso_size() call was always
unnecessary for correctness (and outright undesirable, see later). As such the
only part which is potentially dangerous (ie. could cause backwards compatibility
issues) is the removal of the skb_decrease_gso_size() call.
(d) If the packets are ultimately destined to the local device, then there is
absolutely no benefit to playing around with gso_size. It only matters if the
packets will egress the device. ie. we're either forwarding, or transmitting
from the device.
(e) This logic only triggers for packets which are GSO. It does not trigger for
skbs which are not GSO. It will not convert a non-GSO MTU sized packet into a
GSO packet (and you don't even know what the MTU is, so you can't even fix it).
As such your transmit path must *already* be able to handle an MTU 20 bytes
larger then your receive path (for IPv4 to IPv6 translation) - and indeed 28
bytes larger due to IPv4 fragments. Thus removing the skb_decrease_gso_size()
call doesn't actually increase the size of the packets your transmit side must
be able to handle. ie. to handle non-GSO max-MTU packets, the IPv4/IPv6 device/
route MTUs must already be set correctly. Since for example with an IPv4 egress
MTU of 1500, IPv4 to IPv6 translation will already build 1520 byte IPv6 frames,
so you need a 1520 byte device MTU. This means if your IPv6 device's egress
MTU is 1280, your IPv4 route must be 1260 (and actually 1252, because of the
need to handle fragments). This is to handle normal non-GSO packets. Thus the
reduction is simply not needed for GSO packets, because when they're correctly
built, they will already be the right size.
(f) TSO/GSO should be able to exactly undo GRO: the number of packets (TCP
segments) should not be modified, so that TCP's MSS counting works correctly
(this matters for congestion control). If protocol conversion changes the
gso_size, then the number of TCP segments may increase or decrease. Packet loss
after protocol conversion can result in partial loss of MSS segments that the
sender sent. How's the sending TCP stack going to react to receiving ACKs/SACKs
in the middle of the segments it sent?
(g) skb_{decrease,increase}_gso_size() are already no-ops for GSO_BY_FRAGS
case (besides triggering WARN_ON_ONCE). This means you already cannot guarantee
that gso_size (and thus resulting packet MTU) is changed. ie. you must assume
it won't be changed.
(h) changing gso_size is outright buggy for UDP GSO packets, where framing
matters (I believe that's also the case for SCTP, but it's already excluded
by [g]). So the only remaining case is TCP, which also doesn't want it
(see [f]).
(i) see also the reasoning on the previous attempt at fixing this
(commit fa7b83bf3b156c767f3e4a25bbf3817b08f3ff8e) which shows that the current
behaviour causes TCP packet loss:
In the forwarding path GRO -> BPF 6 to 4 -> GSO for TCP traffic, the
coalesced packet payload can be > MSS, but < MSS + 20.
bpf_skb_proto_6_to_4() will upgrade the MSS and it can be > the payload
length. After then tcp_gso_segment checks for the payload length if it
is <= MSS. The condition is causing the packet to be dropped.
tcp_gso_segment():
[...]
mss = skb_shinfo(skb)->gso_size;
if (unlikely(skb->len <= mss)) goto out;
[...]
Thus changing the gso_size is simply a very bad idea. Increasing is unnecessary
and buggy, and decreasing can go negative.
Fixes: 6578171a7ff0 ("bpf: add bpf_skb_change_proto helper")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Dongseok Yi <dseok.yi@samsung.com>
Cc: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/bpf/CANP3RGfjLikQ6dg=YpBU0OeHvyv7JOki7CyOUS9modaXAi-9vQ@mail.gmail.com
Link: https://lore.kernel.org/bpf/20210617000953.2787453-2-zenczykowski@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/core/filter.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/net/core/filter.c b/net/core/filter.c
index 52f4359efbd2..0d1273d40fcf 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -3266,8 +3266,6 @@ static int bpf_skb_proto_4_to_6(struct sk_buff *skb)
shinfo->gso_type |= SKB_GSO_TCPV6;
}
- /* Due to IPv6 header, MSS needs to be downgraded. */
- skb_decrease_gso_size(shinfo, len_diff);
/* Header must be checked, and gso_segs recomputed. */
shinfo->gso_type |= SKB_GSO_DODGY;
shinfo->gso_segs = 0;
@@ -3307,8 +3305,6 @@ static int bpf_skb_proto_6_to_4(struct sk_buff *skb)
shinfo->gso_type |= SKB_GSO_TCPV4;
}
- /* Due to IPv4 header, MSS can be upgraded. */
- skb_increase_gso_size(shinfo, len_diff);
/* Header must be checked, and gso_segs recomputed. */
shinfo->gso_type |= SKB_GSO_DODGY;
shinfo->gso_segs = 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 478/700] i40e: Fix error handling in i40e_vsi_open
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (476 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 477/700] bpf: Do not change gso_size during bpf_skb_change_proto() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 479/700] i40e: Fix autoneg disabling for non-10GBaseT links Greg Kroah-Hartman
` (227 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dinghao Liu, Tony Brelinski,
Tony Nguyen, Sasha Levin
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
[ Upstream commit 9c04cfcd4aad232e36306cdc5c74cd9fc9148a7e ]
When vsi->type == I40E_VSI_FDIR, we have caught the return value of
i40e_vsi_request_irq() but without further handling. Check and execute
memory clean on failure just like the other i40e_vsi_request_irq().
Fixes: 8a9eb7d3cbcab ("i40e: rework fdir setup and teardown")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index ac4b44fc19f1..2dbc03cd1769 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8702,6 +8702,8 @@ int i40e_vsi_open(struct i40e_vsi *vsi)
dev_driver_string(&pf->pdev->dev),
dev_name(&pf->pdev->dev));
err = i40e_vsi_request_irq(vsi, int_name);
+ if (err)
+ goto err_setup_rx;
} else {
err = -EINVAL;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 479/700] i40e: Fix autoneg disabling for non-10GBaseT links
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (477 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 478/700] i40e: Fix error handling in i40e_vsi_open Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 480/700] i40e: Fix missing rtnl locking when setting up pf switch Greg Kroah-Hartman
` (226 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Aleksandr Loktionov, Karen Sornek,
Dawid Lukwinski, Mateusz Palczewski, Tony Brelinski, Tony Nguyen,
Sasha Levin
From: Mateusz Palczewski <mateusz.palczewski@intel.com>
[ Upstream commit 9262793e59f0423437166a879a73d056b1fe6f9a ]
Disabling autonegotiation was allowed only for 10GBaseT PHY.
The condition was changed to check if link media type is BaseT.
Fixes: 3ce12ee9d8f9 ("i40e: Fix order of checks when enabling/disabling autoneg in ethtool")
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Karen Sornek <karen.sornek@intel.com>
Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 93dd58fda272..d558364e3a9f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1262,8 +1262,7 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
if (ethtool_link_ksettings_test_link_mode(&safe_ks,
supported,
Autoneg) &&
- hw->phy.link_info.phy_type !=
- I40E_PHY_TYPE_10GBASE_T) {
+ hw->phy.media_type != I40E_MEDIA_TYPE_BASET) {
netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
err = -EINVAL;
goto done;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 480/700] i40e: Fix missing rtnl locking when setting up pf switch
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (478 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 479/700] i40e: Fix autoneg disabling for non-10GBaseT links Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 481/700] Revert "ibmvnic: simplify reset_long_term_buff function" Greg Kroah-Hartman
` (225 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Sokolowski, Mateusz Palczewski,
Tony Brelinski, Tony Nguyen, Sasha Levin
From: Jan Sokolowski <jan.sokolowski@intel.com>
[ Upstream commit 956e759d5f8e0859e86b951a8779c60af633aafd ]
A recent change that made i40e use new udp_tunnel infrastructure
uses a method that expects to be called under rtnl lock.
However, not all codepaths do the lock prior to calling
i40e_setup_pf_switch.
Fix that by adding additional rtnl locking and unlocking.
Fixes: 40a98cb6f01f ("i40e: convert to new udp_tunnel infrastructure")
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 2dbc03cd1769..d5106a6afb45 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -31,7 +31,7 @@ static void i40e_vsi_reinit_locked(struct i40e_vsi *vsi);
static void i40e_handle_reset_warning(struct i40e_pf *pf, bool lock_acquired);
static int i40e_add_vsi(struct i40e_vsi *vsi);
static int i40e_add_veb(struct i40e_veb *veb, struct i40e_vsi *vsi);
-static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit);
+static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit, bool lock_acquired);
static int i40e_setup_misc_vector(struct i40e_pf *pf);
static void i40e_determine_queue_usage(struct i40e_pf *pf);
static int i40e_setup_pf_filter_control(struct i40e_pf *pf);
@@ -10570,7 +10570,7 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
#endif /* CONFIG_I40E_DCB */
if (!lock_acquired)
rtnl_lock();
- ret = i40e_setup_pf_switch(pf, reinit);
+ ret = i40e_setup_pf_switch(pf, reinit, true);
if (ret)
goto end_unlock;
@@ -14623,10 +14623,11 @@ int i40e_fetch_switch_configuration(struct i40e_pf *pf, bool printconfig)
* i40e_setup_pf_switch - Setup the HW switch on startup or after reset
* @pf: board private structure
* @reinit: if the Main VSI needs to re-initialized.
+ * @lock_acquired: indicates whether or not the lock has been acquired
*
* Returns 0 on success, negative value on failure
**/
-static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit)
+static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit, bool lock_acquired)
{
u16 flags = 0;
int ret;
@@ -14728,9 +14729,15 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit)
i40e_ptp_init(pf);
+ if (!lock_acquired)
+ rtnl_lock();
+
/* repopulate tunnel port filters */
udp_tunnel_nic_reset_ntf(pf->vsi[pf->lan_vsi]->netdev);
+ if (!lock_acquired)
+ rtnl_unlock();
+
return ret;
}
@@ -15511,7 +15518,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
}
#endif
- err = i40e_setup_pf_switch(pf, false);
+ err = i40e_setup_pf_switch(pf, false, false);
if (err) {
dev_info(&pdev->dev, "setup_pf_switch failed: %d\n", err);
goto err_vsis;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 481/700] Revert "ibmvnic: simplify reset_long_term_buff function"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (479 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 480/700] i40e: Fix missing rtnl locking when setting up pf switch Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 482/700] Revert "ibmvnic: remove duplicate napi_schedule call in open function" Greg Kroah-Hartman
` (224 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sukadev Bhattiprolu, David S. Miller,
Sasha Levin
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
[ Upstream commit 0ec13aff058a82426c8d44b688c804cc4a5a0a3d ]
This reverts commit 1c7d45e7b2c29080bf6c8cd0e213cc3cbb62a054.
We tried to optimize the number of hcalls we send and skipped sending
the REQUEST_MAP calls for some maps. However during resets, we need to
resend all the maps to the VIOS since the VIOS does not remember the
old values. In fact we may have failed over to a new VIOS which will
not have any of the mappings.
When we send packets with map ids the VIOS does not know about, it
triggers a FATAL reset. While the client does recover from the FATAL
error reset, we are seeing a large number of such resets. Handling
FATAL resets is lot more unnecessary work than issuing a few more
hcalls so revert the commit and resend the maps to the VIOS.
Fixes: 1c7d45e7b2c ("ibmvnic: simplify reset_long_term_buff function")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 46 ++++++++++++++++++++++++------
1 file changed, 38 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index ffb2a91750c7..b920132d4940 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -257,12 +257,40 @@ static void free_long_term_buff(struct ibmvnic_adapter *adapter,
dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
}
-static int reset_long_term_buff(struct ibmvnic_long_term_buff *ltb)
+static int reset_long_term_buff(struct ibmvnic_adapter *adapter,
+ struct ibmvnic_long_term_buff *ltb)
{
- if (!ltb->buff)
- return -EINVAL;
+ struct device *dev = &adapter->vdev->dev;
+ int rc;
memset(ltb->buff, 0, ltb->size);
+
+ mutex_lock(&adapter->fw_lock);
+ adapter->fw_done_rc = 0;
+
+ reinit_completion(&adapter->fw_done);
+ rc = send_request_map(adapter, ltb->addr, ltb->size, ltb->map_id);
+ if (rc) {
+ mutex_unlock(&adapter->fw_lock);
+ return rc;
+ }
+
+ rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000);
+ if (rc) {
+ dev_info(dev,
+ "Reset failed, long term map request timed out or aborted\n");
+ mutex_unlock(&adapter->fw_lock);
+ return rc;
+ }
+
+ if (adapter->fw_done_rc) {
+ dev_info(dev,
+ "Reset failed, attempting to free and reallocate buffer\n");
+ free_long_term_buff(adapter, ltb);
+ mutex_unlock(&adapter->fw_lock);
+ return alloc_long_term_buff(adapter, ltb, ltb->size);
+ }
+ mutex_unlock(&adapter->fw_lock);
return 0;
}
@@ -484,7 +512,8 @@ static int reset_rx_pools(struct ibmvnic_adapter *adapter)
rx_pool->size *
rx_pool->buff_size);
} else {
- rc = reset_long_term_buff(&rx_pool->long_term_buff);
+ rc = reset_long_term_buff(adapter,
+ &rx_pool->long_term_buff);
}
if (rc)
@@ -607,11 +636,12 @@ static int init_rx_pools(struct net_device *netdev)
return 0;
}
-static int reset_one_tx_pool(struct ibmvnic_tx_pool *tx_pool)
+static int reset_one_tx_pool(struct ibmvnic_adapter *adapter,
+ struct ibmvnic_tx_pool *tx_pool)
{
int rc, i;
- rc = reset_long_term_buff(&tx_pool->long_term_buff);
+ rc = reset_long_term_buff(adapter, &tx_pool->long_term_buff);
if (rc)
return rc;
@@ -638,10 +668,10 @@ static int reset_tx_pools(struct ibmvnic_adapter *adapter)
tx_scrqs = adapter->num_active_tx_pools;
for (i = 0; i < tx_scrqs; i++) {
- rc = reset_one_tx_pool(&adapter->tso_pool[i]);
+ rc = reset_one_tx_pool(adapter, &adapter->tso_pool[i]);
if (rc)
return rc;
- rc = reset_one_tx_pool(&adapter->tx_pool[i]);
+ rc = reset_one_tx_pool(adapter, &adapter->tx_pool[i]);
if (rc)
return rc;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 482/700] Revert "ibmvnic: remove duplicate napi_schedule call in open function"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (480 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 481/700] Revert "ibmvnic: simplify reset_long_term_buff function" Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 483/700] ibmvnic: clean pending indirect buffs during reset Greg Kroah-Hartman
` (223 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Cristobal Forno, Abdul Haleem,
Dany Madden, Sukadev Bhattiprolu, David S. Miller, Sasha Levin
From: Dany Madden <drt@linux.ibm.com>
[ Upstream commit 2ca220f92878470c6ba03f9946e412323093cc94 ]
This reverts commit 7c451f3ef676c805a4b77a743a01a5c21a250a73.
When a vnic interface is taken down and then up, connectivity is not
restored. We bisected it to this commit. Reverting this commit until
we can fully investigate the issue/benefit of the change.
Fixes: 7c451f3ef676 ("ibmvnic: remove duplicate napi_schedule call in open function")
Reported-by: Cristobal Forno <cforno12@linux.ibm.com>
Reported-by: Abdul Haleem <abdhalee@in.ibm.com>
Signed-off-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index b920132d4940..b2f5250f77a9 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1186,6 +1186,11 @@ static int __ibmvnic_open(struct net_device *netdev)
netif_tx_start_all_queues(netdev);
+ if (prev_state == VNIC_CLOSED) {
+ for (i = 0; i < adapter->req_rx_queues; i++)
+ napi_schedule(&adapter->napi[i]);
+ }
+
adapter->state = VNIC_OPEN;
return rc;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 483/700] ibmvnic: clean pending indirect buffs during reset
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (481 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 482/700] Revert "ibmvnic: remove duplicate napi_schedule call in open function" Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 484/700] ibmvnic: account for bufs already saved in indir_buf Greg Kroah-Hartman
` (222 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sukadev Bhattiprolu, David S. Miller,
Sasha Levin
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
[ Upstream commit 65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8 ]
We batch subordinate command response queue (scrq) descriptors that we
need to send to the VIOS using an "indirect" buffer. If after we queue
one or more scrqs in the indirect buffer encounter an error (say fail
to allocate an skb), we leave the queued scrq descriptors in the
indirect buffer until the next call to ibmvnic_xmit().
On the next call to ibmvnic_xmit(), it is possible that the adapter is
going through a reset and it is possible that the long term buffers
have been unmapped on the VIOS side. If we proceed to flush (send) the
packets that are in the indirect buffer, we will end up using the old
map ids and this can cause the VIOS to trigger an unnecessary FATAL
error reset.
Instead of flushing packets remaining on the indirect_buff, discard
(clean) them instead.
Fixes: 0d973388185d4 ("ibmvnic: Introduce xmit_more support using batched subCRQ hcalls")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index b2f5250f77a9..e8f4bdb1079c 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -106,6 +106,8 @@ static void release_crq_queue(struct ibmvnic_adapter *);
static int __ibmvnic_set_mac(struct net_device *, u8 *);
static int init_crq_queue(struct ibmvnic_adapter *adapter);
static int send_query_phys_parms(struct ibmvnic_adapter *adapter);
+static void ibmvnic_tx_scrq_clean_buffer(struct ibmvnic_adapter *adapter,
+ struct ibmvnic_sub_crq_queue *tx_scrq);
struct ibmvnic_stat {
char name[ETH_GSTRING_LEN];
@@ -668,6 +670,7 @@ static int reset_tx_pools(struct ibmvnic_adapter *adapter)
tx_scrqs = adapter->num_active_tx_pools;
for (i = 0; i < tx_scrqs; i++) {
+ ibmvnic_tx_scrq_clean_buffer(adapter, adapter->tx_scrq[i]);
rc = reset_one_tx_pool(adapter, &adapter->tso_pool[i]);
if (rc)
return rc;
@@ -1592,7 +1595,8 @@ static void ibmvnic_tx_scrq_clean_buffer(struct ibmvnic_adapter *adapter,
ind_bufp->index = 0;
if (atomic_sub_return(entries, &tx_scrq->used) <=
(adapter->req_tx_entries_per_subcrq / 2) &&
- __netif_subqueue_stopped(adapter->netdev, queue_num)) {
+ __netif_subqueue_stopped(adapter->netdev, queue_num) &&
+ !test_bit(0, &adapter->resetting)) {
netif_wake_subqueue(adapter->netdev, queue_num);
netdev_dbg(adapter->netdev, "Started queue %d\n",
queue_num);
@@ -1685,7 +1689,6 @@ static netdev_tx_t ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
tx_send_failed++;
tx_dropped++;
ret = NETDEV_TX_OK;
- ibmvnic_tx_scrq_flush(adapter, tx_scrq);
goto out;
}
@@ -3123,6 +3126,7 @@ static void release_sub_crqs(struct ibmvnic_adapter *adapter, bool do_h_free)
netdev_dbg(adapter->netdev, "Releasing tx_scrq[%d]\n",
i);
+ ibmvnic_tx_scrq_clean_buffer(adapter, adapter->tx_scrq[i]);
if (adapter->tx_scrq[i]->irq) {
free_irq(adapter->tx_scrq[i]->irq,
adapter->tx_scrq[i]);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 484/700] ibmvnic: account for bufs already saved in indir_buf
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (482 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 483/700] ibmvnic: clean pending indirect buffs during reset Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 485/700] ibmvnic: set ltb->buff to NULL after freeing Greg Kroah-Hartman
` (221 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sukadev Bhattiprolu, David S. Miller,
Sasha Levin
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
[ Upstream commit 72368f8b2b9e4106072a2728bed3367d54641c22 ]
This fixes a crash in replenish_rx_pool() when called from ibmvnic_poll()
after a previous call to replenish_rx_pool() encountered an error when
allocating a socket buffer.
Thanks to Rick Lindsley and Dany Madden for helping debug the crash.
Fixes: 4f0b6812e9b9 ("ibmvnic: Introduce batched RX buffer descriptor transmission")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index e8f4bdb1079c..f1a6f454fe97 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -328,7 +328,14 @@ static void replenish_rx_pool(struct ibmvnic_adapter *adapter,
rx_scrq = adapter->rx_scrq[pool->index];
ind_bufp = &rx_scrq->ind_buf;
- for (i = 0; i < count; ++i) {
+
+ /* netdev_skb_alloc() could have failed after we saved a few skbs
+ * in the indir_buf and we would not have sent them to VIOS yet.
+ * To account for them, start the loop at ind_bufp->index rather
+ * than 0. If we pushed all the skbs to VIOS, ind_bufp->index will
+ * be 0.
+ */
+ for (i = ind_bufp->index; i < count; ++i) {
skb = netdev_alloc_skb(adapter->netdev, pool->buff_size);
if (!skb) {
dev_err(dev, "Couldn't replenish rx buff\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 485/700] ibmvnic: set ltb->buff to NULL after freeing
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (483 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 484/700] ibmvnic: account for bufs already saved in indir_buf Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 486/700] ibmvnic: free tx_pool if tso_pool alloc fails Greg Kroah-Hartman
` (220 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sukadev Bhattiprolu, David S. Miller,
Sasha Levin
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
[ Upstream commit 552a33729f1a7cc5115d0752064fe9abd6e3e336 ]
free_long_term_buff() checks ltb->buff to decide whether we have a long
term buffer to free. So set ltb->buff to NULL afer freeing. While here,
also clear ->map_id, fix up some coding style and log an error.
Fixes: 9c4eaabd1bb39 ("Check CRQ command return codes")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 26 +++++++++++++++-----------
1 file changed, 15 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index f1a6f454fe97..accf362193f8 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -211,12 +211,11 @@ static int alloc_long_term_buff(struct ibmvnic_adapter *adapter,
mutex_lock(&adapter->fw_lock);
adapter->fw_done_rc = 0;
reinit_completion(&adapter->fw_done);
- rc = send_request_map(adapter, ltb->addr,
- ltb->size, ltb->map_id);
+
+ rc = send_request_map(adapter, ltb->addr, ltb->size, ltb->map_id);
if (rc) {
- dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
- mutex_unlock(&adapter->fw_lock);
- return rc;
+ dev_err(dev, "send_request_map failed, rc = %d\n", rc);
+ goto out;
}
rc = ibmvnic_wait_for_completion(adapter, &adapter->fw_done, 10000);
@@ -224,20 +223,23 @@ static int alloc_long_term_buff(struct ibmvnic_adapter *adapter,
dev_err(dev,
"Long term map request aborted or timed out,rc = %d\n",
rc);
- dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
- mutex_unlock(&adapter->fw_lock);
- return rc;
+ goto out;
}
if (adapter->fw_done_rc) {
dev_err(dev, "Couldn't map long term buffer,rc = %d\n",
adapter->fw_done_rc);
+ rc = -1;
+ goto out;
+ }
+ rc = 0;
+out:
+ if (rc) {
dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
- mutex_unlock(&adapter->fw_lock);
- return -1;
+ ltb->buff = NULL;
}
mutex_unlock(&adapter->fw_lock);
- return 0;
+ return rc;
}
static void free_long_term_buff(struct ibmvnic_adapter *adapter,
@@ -257,6 +259,8 @@ static void free_long_term_buff(struct ibmvnic_adapter *adapter,
adapter->reset_reason != VNIC_RESET_TIMEOUT)
send_request_unmap(adapter, ltb->map_id);
dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
+ ltb->buff = NULL;
+ ltb->map_id = 0;
}
static int reset_long_term_buff(struct ibmvnic_adapter *adapter,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 486/700] ibmvnic: free tx_pool if tso_pool alloc fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (484 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 485/700] ibmvnic: set ltb->buff to NULL after freeing Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 487/700] RDMA/cma: Protect RMW with qp_mutex Greg Kroah-Hartman
` (219 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sukadev Bhattiprolu, David S. Miller,
Sasha Levin
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
[ Upstream commit f6ebca8efa52e4ae770f0325d618e7bcf08ada0c ]
Free tx_pool and clear it, if allocation of tso_pool fails.
release_tx_pools() assumes we have both tx and tso_pools if ->tx_pool is
non-NULL. If allocation of tso_pool fails in init_tx_pools(), the assumption
will not be true and we would end up dereferencing ->tx_buff, ->free_map
fields from a NULL pointer.
Fixes: 3205306c6b8d ("ibmvnic: Update TX pool initialization routine")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/ibm/ibmvnic.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index accf362193f8..3c77897b3f31 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -778,8 +778,11 @@ static int init_tx_pools(struct net_device *netdev)
adapter->tso_pool = kcalloc(tx_subcrqs,
sizeof(struct ibmvnic_tx_pool), GFP_KERNEL);
- if (!adapter->tso_pool)
+ if (!adapter->tso_pool) {
+ kfree(adapter->tx_pool);
+ adapter->tx_pool = NULL;
return -1;
+ }
adapter->num_active_tx_pools = tx_subcrqs;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 487/700] RDMA/cma: Protect RMW with qp_mutex
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (485 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 486/700] ibmvnic: free tx_pool if tso_pool alloc fails Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 488/700] net: macsec: fix the length used to copy the key for offloading Greg Kroah-Hartman
` (218 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Håkon Bugge, Jason Gunthorpe,
Sasha Levin
From: Håkon Bugge <haakon.bugge@oracle.com>
[ Upstream commit ca0c448d2b9f43e3175835d536853854ef544e22 ]
The struct rdma_id_private contains three bit-fields, tos_set,
timeout_set, and min_rnr_timer_set. These are set by accessor functions
without any synchronization. If two or all accessor functions are invoked
in close proximity in time, there will be Read-Modify-Write from several
contexts to the same variable, and the result will be intermittent.
Fixed by protecting the bit-fields by the qp_mutex in the accessor
functions.
The consumer of timeout_set and min_rnr_timer_set is in
rdma_init_qp_attr(), which is called with qp_mutex held for connected
QPs. Explicit locking is added for the consumers of tos and tos_set.
This commit depends on ("RDMA/cma: Remove unnecessary INIT->INIT
transition"), since the call to rdma_init_qp_attr() from
cma_init_conn_qp() does not hold the qp_mutex.
Fixes: 2c1619edef61 ("IB/cma: Define option to set ack timeout and pack tos_set")
Fixes: 3aeffc46afde ("IB/cma: Introduce rdma_set_min_rnr_timer()")
Link: https://lore.kernel.org/r/1624369197-24578-3-git-send-email-haakon.bugge@oracle.com
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/core/cma.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 5b9022a8c9ec..2f5f384987a2 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2476,8 +2476,10 @@ static int cma_iw_listen(struct rdma_id_private *id_priv, int backlog)
if (IS_ERR(id))
return PTR_ERR(id);
+ mutex_lock(&id_priv->qp_mutex);
id->tos = id_priv->tos;
id->tos_set = id_priv->tos_set;
+ mutex_unlock(&id_priv->qp_mutex);
id_priv->cm_id.iw = id;
memcpy(&id_priv->cm_id.iw->local_addr, cma_src_addr(id_priv),
@@ -2537,8 +2539,10 @@ static int cma_listen_on_dev(struct rdma_id_private *id_priv,
cma_id_get(id_priv);
dev_id_priv->internal_id = 1;
dev_id_priv->afonly = id_priv->afonly;
+ mutex_lock(&id_priv->qp_mutex);
dev_id_priv->tos_set = id_priv->tos_set;
dev_id_priv->tos = id_priv->tos;
+ mutex_unlock(&id_priv->qp_mutex);
ret = rdma_listen(&dev_id_priv->id, id_priv->backlog);
if (ret)
@@ -2585,8 +2589,10 @@ void rdma_set_service_type(struct rdma_cm_id *id, int tos)
struct rdma_id_private *id_priv;
id_priv = container_of(id, struct rdma_id_private, id);
+ mutex_lock(&id_priv->qp_mutex);
id_priv->tos = (u8) tos;
id_priv->tos_set = true;
+ mutex_unlock(&id_priv->qp_mutex);
}
EXPORT_SYMBOL(rdma_set_service_type);
@@ -2613,8 +2619,10 @@ int rdma_set_ack_timeout(struct rdma_cm_id *id, u8 timeout)
return -EINVAL;
id_priv = container_of(id, struct rdma_id_private, id);
+ mutex_lock(&id_priv->qp_mutex);
id_priv->timeout = timeout;
id_priv->timeout_set = true;
+ mutex_unlock(&id_priv->qp_mutex);
return 0;
}
@@ -3000,8 +3008,11 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
u8 default_roce_tos = id_priv->cma_dev->default_roce_tos[id_priv->id.port_num -
rdma_start_port(id_priv->cma_dev->device)];
- u8 tos = id_priv->tos_set ? id_priv->tos : default_roce_tos;
+ u8 tos;
+ mutex_lock(&id_priv->qp_mutex);
+ tos = id_priv->tos_set ? id_priv->tos : default_roce_tos;
+ mutex_unlock(&id_priv->qp_mutex);
work = kzalloc(sizeof *work, GFP_KERNEL);
if (!work)
@@ -3048,8 +3059,10 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
* PacketLifeTime = local ACK timeout/2
* as a reasonable approximation for RoCE networks.
*/
+ mutex_lock(&id_priv->qp_mutex);
route->path_rec->packet_life_time = id_priv->timeout_set ?
id_priv->timeout - 1 : CMA_IBOE_PACKET_LIFETIME;
+ mutex_unlock(&id_priv->qp_mutex);
if (!route->path_rec->mtu) {
ret = -EINVAL;
@@ -4073,8 +4086,11 @@ static int cma_connect_iw(struct rdma_id_private *id_priv,
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
+ mutex_lock(&id_priv->qp_mutex);
cm_id->tos = id_priv->tos;
cm_id->tos_set = id_priv->tos_set;
+ mutex_unlock(&id_priv->qp_mutex);
+
id_priv->cm_id.iw = cm_id;
memcpy(&cm_id->local_addr, cma_src_addr(id_priv),
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 488/700] net: macsec: fix the length used to copy the key for offloading
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (486 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 487/700] RDMA/cma: Protect RMW with qp_mutex Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 489/700] net: phy: mscc: fix macsec key length Greg Kroah-Hartman
` (217 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lior Nahmanson, Antoine Tenart,
David S. Miller, Sasha Levin
From: Antoine Tenart <atenart@kernel.org>
[ Upstream commit 1f7fe5121127e037b86592ba42ce36515ea0e3f7 ]
The key length used when offloading macsec to Ethernet or PHY drivers
was set to MACSEC_KEYID_LEN (16), which is an issue as:
- This was never meant to be the key length.
- The key length can be > 16.
Fix this by using MACSEC_MAX_KEY_LEN to store the key (the max length
accepted in uAPI) and secy->key_len to copy it.
Fixes: 3cf3227a21d1 ("net: macsec: hardware offloading infrastructure")
Reported-by: Lior Nahmanson <liorna@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/macsec.c | 4 ++--
include/net/macsec.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 92425e1fd70c..93dc48b9b4f2 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -1819,7 +1819,7 @@ static int macsec_add_rxsa(struct sk_buff *skb, struct genl_info *info)
ctx.sa.rx_sa = rx_sa;
ctx.secy = secy;
memcpy(ctx.sa.key, nla_data(tb_sa[MACSEC_SA_ATTR_KEY]),
- MACSEC_KEYID_LEN);
+ secy->key_len);
err = macsec_offload(ops->mdo_add_rxsa, &ctx);
if (err)
@@ -2061,7 +2061,7 @@ static int macsec_add_txsa(struct sk_buff *skb, struct genl_info *info)
ctx.sa.tx_sa = tx_sa;
ctx.secy = secy;
memcpy(ctx.sa.key, nla_data(tb_sa[MACSEC_SA_ATTR_KEY]),
- MACSEC_KEYID_LEN);
+ secy->key_len);
err = macsec_offload(ops->mdo_add_txsa, &ctx);
if (err)
diff --git a/include/net/macsec.h b/include/net/macsec.h
index 52874cdfe226..d6fa6b97f6ef 100644
--- a/include/net/macsec.h
+++ b/include/net/macsec.h
@@ -241,7 +241,7 @@ struct macsec_context {
struct macsec_rx_sc *rx_sc;
struct {
unsigned char assoc_num;
- u8 key[MACSEC_KEYID_LEN];
+ u8 key[MACSEC_MAX_KEY_LEN];
union {
struct macsec_rx_sa *rx_sa;
struct macsec_tx_sa *tx_sa;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 489/700] net: phy: mscc: fix macsec key length
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (487 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 488/700] net: macsec: fix the length used to copy the key for offloading Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 490/700] net: atlantic: fix the " Greg Kroah-Hartman
` (216 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lior Nahmanson, Antoine Tenart,
David S. Miller, Sasha Levin
From: Antoine Tenart <atenart@kernel.org>
[ Upstream commit c309217f91f2d2097c2a0a832d9bff50b88c81dc ]
The key length used to store the macsec key was set to MACSEC_KEYID_LEN
(16), which is an issue as:
- This was never meant to be the key length.
- The key length can be > 16.
Fix this by using MACSEC_MAX_KEY_LEN instead (the max length accepted in
uAPI).
Fixes: 28c5107aa904 ("net: phy: mscc: macsec support")
Reported-by: Lior Nahmanson <liorna@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/phy/mscc/mscc_macsec.c | 2 +-
drivers/net/phy/mscc/mscc_macsec.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/mscc/mscc_macsec.c b/drivers/net/phy/mscc/mscc_macsec.c
index 10be266e48e8..b7b2521c73fb 100644
--- a/drivers/net/phy/mscc/mscc_macsec.c
+++ b/drivers/net/phy/mscc/mscc_macsec.c
@@ -501,7 +501,7 @@ static u32 vsc8584_macsec_flow_context_id(struct macsec_flow *flow)
}
/* Derive the AES key to get a key for the hash autentication */
-static int vsc8584_macsec_derive_key(const u8 key[MACSEC_KEYID_LEN],
+static int vsc8584_macsec_derive_key(const u8 key[MACSEC_MAX_KEY_LEN],
u16 key_len, u8 hkey[16])
{
const u8 input[AES_BLOCK_SIZE] = {0};
diff --git a/drivers/net/phy/mscc/mscc_macsec.h b/drivers/net/phy/mscc/mscc_macsec.h
index 9c6d25e36de2..453304bae778 100644
--- a/drivers/net/phy/mscc/mscc_macsec.h
+++ b/drivers/net/phy/mscc/mscc_macsec.h
@@ -81,7 +81,7 @@ struct macsec_flow {
/* Highest takes precedence [0..15] */
u8 priority;
- u8 key[MACSEC_KEYID_LEN];
+ u8 key[MACSEC_MAX_KEY_LEN];
union {
struct macsec_rx_sa *rx_sa;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 490/700] net: atlantic: fix the macsec key length
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (488 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 489/700] net: phy: mscc: fix macsec key length Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 491/700] ipv6: fix out-of-bound access in ip6_parse_tlv() Greg Kroah-Hartman
` (215 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lior Nahmanson, Antoine Tenart,
David S. Miller, Sasha Levin
From: Antoine Tenart <atenart@kernel.org>
[ Upstream commit d67fb4772d9a6cfd10f1109f0e7b1e6eb58c8e16 ]
The key length used to store the macsec key was set to MACSEC_KEYID_LEN
(16), which is an issue as:
- This was never meant to be the key length.
- The key length can be > 16.
Fix this by using MACSEC_MAX_KEY_LEN instead (the max length accepted in
uAPI).
Fixes: 27736563ce32 ("net: atlantic: MACSec egress offload implementation")
Fixes: 9ff40a751a6f ("net: atlantic: MACSec ingress offload implementation")
Reported-by: Lior Nahmanson <liorna@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/aquantia/atlantic/aq_macsec.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_macsec.h b/drivers/net/ethernet/aquantia/atlantic/aq_macsec.h
index f5fba8b8cdea..a47e2710487e 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_macsec.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_macsec.h
@@ -91,7 +91,7 @@ struct aq_macsec_txsc {
u32 hw_sc_idx;
unsigned long tx_sa_idx_busy;
const struct macsec_secy *sw_secy;
- u8 tx_sa_key[MACSEC_NUM_AN][MACSEC_KEYID_LEN];
+ u8 tx_sa_key[MACSEC_NUM_AN][MACSEC_MAX_KEY_LEN];
struct aq_macsec_tx_sc_stats stats;
struct aq_macsec_tx_sa_stats tx_sa_stats[MACSEC_NUM_AN];
};
@@ -101,7 +101,7 @@ struct aq_macsec_rxsc {
unsigned long rx_sa_idx_busy;
const struct macsec_secy *sw_secy;
const struct macsec_rx_sc *sw_rxsc;
- u8 rx_sa_key[MACSEC_NUM_AN][MACSEC_KEYID_LEN];
+ u8 rx_sa_key[MACSEC_NUM_AN][MACSEC_MAX_KEY_LEN];
struct aq_macsec_rx_sa_stats rx_sa_stats[MACSEC_NUM_AN];
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 491/700] ipv6: fix out-of-bound access in ip6_parse_tlv()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (489 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 490/700] net: atlantic: fix the " Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 492/700] e1000e: Check the PCIm state Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eric Dumazet, Paolo Abeni,
Tom Herbert, David S. Miller, Sasha Levin
From: Eric Dumazet <edumazet@google.com>
[ Upstream commit 624085a31c1ad6a80b1e53f686bf6ee92abbf6e8 ]
First problem is that optlen is fetched without checking
there is more than one byte to parse.
Fix this by taking care of IPV6_TLV_PAD1 before
fetching optlen (under appropriate sanity checks against len)
Second problem is that IPV6_TLV_PADN checks of zero
padding are performed before the check of remaining length.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Fixes: c1412fce7ecc ("net/ipv6/exthdrs.c: Strict PadN option checking")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv6/exthdrs.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index a9e1d7918d14..6ffa05298cc0 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -135,18 +135,23 @@ static bool ip6_parse_tlv(const struct tlvtype_proc *procs,
len -= 2;
while (len > 0) {
- int optlen = nh[off + 1] + 2;
- int i;
+ int optlen, i;
- switch (nh[off]) {
- case IPV6_TLV_PAD1:
- optlen = 1;
+ if (nh[off] == IPV6_TLV_PAD1) {
padlen++;
if (padlen > 7)
goto bad;
- break;
+ off++;
+ len--;
+ continue;
+ }
+ if (len < 2)
+ goto bad;
+ optlen = nh[off + 1] + 2;
+ if (optlen > len)
+ goto bad;
- case IPV6_TLV_PADN:
+ if (nh[off] == IPV6_TLV_PADN) {
/* RFC 2460 states that the purpose of PadN is
* to align the containing header to multiples
* of 8. 7 is therefore the highest valid value.
@@ -163,12 +168,7 @@ static bool ip6_parse_tlv(const struct tlvtype_proc *procs,
if (nh[off + i] != 0)
goto bad;
}
- break;
-
- default: /* Other TLV code so scan list */
- if (optlen > len)
- goto bad;
-
+ } else {
tlv_count++;
if (tlv_count > max_count)
goto bad;
@@ -188,7 +188,6 @@ static bool ip6_parse_tlv(const struct tlvtype_proc *procs,
return false;
padlen = 0;
- break;
}
off += optlen;
len -= optlen;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 492/700] e1000e: Check the PCIm state
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (490 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 491/700] ipv6: fix out-of-bound access in ip6_parse_tlv() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 493/700] net: dsa: sja1105: fix NULL pointer dereference in sja1105_reload_cbs() Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sasha Neftin, Dvora Fuxbrumer,
Tony Nguyen, David S. Miller, Sasha Levin
From: Sasha Neftin <sasha.neftin@intel.com>
[ Upstream commit 2e7256f12cdb16eaa2515b6231d665044a07c51a ]
Complete to commit def4ec6dce393e ("e1000e: PCIm function state support")
Check the PCIm state only on CSME systems. There is no point to do this
check on non CSME systems.
This patch fixes a generation a false-positive warning:
"Error in exiting dmoff"
Fixes: def4ec6dce39 ("e1000e: PCIm function state support")
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 24 ++++++++++++----------
1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index a0948002ddf8..b3ad95ac3d85 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5222,18 +5222,20 @@ static void e1000_watchdog_task(struct work_struct *work)
pm_runtime_resume(netdev->dev.parent);
/* Checking if MAC is in DMoff state*/
- pcim_state = er32(STATUS);
- while (pcim_state & E1000_STATUS_PCIM_STATE) {
- if (tries++ == dmoff_exit_timeout) {
- e_dbg("Error in exiting dmoff\n");
- break;
- }
- usleep_range(10000, 20000);
+ if (er32(FWSM) & E1000_ICH_FWSM_FW_VALID) {
pcim_state = er32(STATUS);
-
- /* Checking if MAC exited DMoff state */
- if (!(pcim_state & E1000_STATUS_PCIM_STATE))
- e1000_phy_hw_reset(&adapter->hw);
+ while (pcim_state & E1000_STATUS_PCIM_STATE) {
+ if (tries++ == dmoff_exit_timeout) {
+ e_dbg("Error in exiting dmoff\n");
+ break;
+ }
+ usleep_range(10000, 20000);
+ pcim_state = er32(STATUS);
+
+ /* Checking if MAC exited DMoff state */
+ if (!(pcim_state & E1000_STATUS_PCIM_STATE))
+ e1000_phy_hw_reset(&adapter->hw);
+ }
}
/* update snapshot of PHY registers on LSC */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 493/700] net: dsa: sja1105: fix NULL pointer dereference in sja1105_reload_cbs()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (491 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 492/700] e1000e: Check the PCIm state Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 494/700] bpfilter: Specify the log level for the kmsg message Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vladimir Oltean, David S. Miller,
Sasha Levin
From: Vladimir Oltean <vladimir.oltean@nxp.com>
[ Upstream commit be7f62eebaff2f86c1467a2d33930a0a7a87675b ]
priv->cbs is an array of priv->info->num_cbs_shapers elements of type
struct sja1105_cbs_entry which only get allocated if CONFIG_NET_SCH_CBS
is enabled.
However, sja1105_reload_cbs() is called from sja1105_static_config_reload()
which in turn is called for any of the items in sja1105_reset_reasons,
therefore during the normal runtime of the driver and not just from a
code path which can be triggered by the tc-cbs offload.
The sja1105_reload_cbs() function does not contain a check whether the
priv->cbs array is NULL or not, it just assumes it isn't and proceeds to
iterate through the credit-based shaper elements. This leads to a NULL
pointer dereference.
The solution is to return success if the priv->cbs array has not been
allocated, since sja1105_reload_cbs() has nothing to do.
Fixes: 4d7525085a9b ("net: dsa: sja1105: offload the Credit-Based Shaper qdisc")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/sja1105/sja1105_main.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 926544440f02..42a0fb588f64 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -1798,6 +1798,12 @@ static int sja1105_reload_cbs(struct sja1105_private *priv)
{
int rc = 0, i;
+ /* The credit based shapers are only allocated if
+ * CONFIG_NET_SCH_CBS is enabled.
+ */
+ if (!priv->cbs)
+ return 0;
+
for (i = 0; i < priv->info->num_cbs_shapers; i++) {
struct sja1105_cbs_entry *cbs = &priv->cbs[i];
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 494/700] bpfilter: Specify the log level for the kmsg message
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (492 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 493/700] net: dsa: sja1105: fix NULL pointer dereference in sja1105_reload_cbs() Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 495/700] RDMA/cma: Fix incorrect Packet Lifetime calculation Greg Kroah-Hartman
` (211 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Martin Loviska, Gary Lin,
Daniel Borkmann, Dmitrii Banshchikov, Sasha Levin
From: Gary Lin <glin@suse.com>
[ Upstream commit a196fa78a26571359740f701cf30d774eb8a72cb ]
Per the kmsg document [0], if we don't specify the log level with a
prefix "<N>" in the message string, the default log level will be
applied to the message. Since the default level could be warning(4),
this would make the log utility such as journalctl treat the message,
"Started bpfilter", as a warning. To avoid confusion, this commit
adds the prefix "<5>" to make the message always a notice.
[0] https://www.kernel.org/doc/Documentation/ABI/testing/dev-kmsg
Fixes: 36c4357c63f3 ("net: bpfilter: print umh messages to /dev/kmsg")
Reported-by: Martin Loviska <mloviska@suse.com>
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Dmitrii Banshchikov <me@ubique.spb.ru>
Link: https://lore.kernel.org/bpf/20210623040918.8683-1-glin@suse.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bpfilter/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/bpfilter/main.c b/net/bpfilter/main.c
index 05e1cfc1e5cd..291a92546246 100644
--- a/net/bpfilter/main.c
+++ b/net/bpfilter/main.c
@@ -57,7 +57,7 @@ int main(void)
{
debug_f = fopen("/dev/kmsg", "w");
setvbuf(debug_f, 0, _IOLBF, 0);
- fprintf(debug_f, "Started bpfilter\n");
+ fprintf(debug_f, "<5>Started bpfilter\n");
loop();
fclose(debug_f);
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 495/700] RDMA/cma: Fix incorrect Packet Lifetime calculation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (493 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 494/700] bpfilter: Specify the log level for the kmsg message Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 496/700] gve: Fix swapped vars when fetching max queues Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Håkon Bugge, Leon Romanovsky,
Jason Gunthorpe, Sasha Levin
From: Håkon Bugge <haakon.bugge@oracle.com>
[ Upstream commit e84045eab69c625bc0b0bf24d8e05bc65da1eed1 ]
An approximation for the PacketLifeTime is half the local ACK timeout.
The encoding for both timers are logarithmic.
If the local ACK timeout is set, but zero, it means the timer is
disabled. In this case, we choose the CMA_IBOE_PACKET_LIFETIME value,
since 50% of infinite makes no sense.
Before this commit, the PacketLifeTime became 255 if local ACK
timeout was zero (not running).
Fixed by explicitly testing for timeout being zero.
Fixes: e1ee1e62bec4 ("RDMA/cma: Use ACK timeout for RoCE packetLifeTime")
Link: https://lore.kernel.org/r/1624371207-26710-1-git-send-email-haakon.bugge@oracle.com
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/core/cma.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 2f5f384987a2..68bbcecb0a6a 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3060,8 +3060,10 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
* as a reasonable approximation for RoCE networks.
*/
mutex_lock(&id_priv->qp_mutex);
- route->path_rec->packet_life_time = id_priv->timeout_set ?
- id_priv->timeout - 1 : CMA_IBOE_PACKET_LIFETIME;
+ if (id_priv->timeout_set && id_priv->timeout)
+ route->path_rec->packet_life_time = id_priv->timeout - 1;
+ else
+ route->path_rec->packet_life_time = CMA_IBOE_PACKET_LIFETIME;
mutex_unlock(&id_priv->qp_mutex);
if (!route->path_rec->mtu) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 496/700] gve: Fix swapped vars when fetching max queues
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (494 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 495/700] RDMA/cma: Fix incorrect Packet Lifetime calculation Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 497/700] Revert "be2net: disable bh with spin_lock in be_process_mcc" Greg Kroah-Hartman
` (209 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bailey Forrest, David S. Miller, Sasha Levin
From: Bailey Forrest <bcf@google.com>
[ Upstream commit 1db1a862a08f85edc36aad091236ac9b818e949e ]
Fixes: 893ce44df565 ("gve: Add basic driver framework for Compute Engine Virtual NIC")
Signed-off-by: Bailey Forrest <bcf@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/google/gve/gve_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index bbc423e93122..79cefe85a799 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -1295,8 +1295,8 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
gve_write_version(®_bar->driver_version);
/* Get max queues to alloc etherdev */
- max_rx_queues = ioread32be(®_bar->max_tx_queues);
- max_tx_queues = ioread32be(®_bar->max_rx_queues);
+ max_tx_queues = ioread32be(®_bar->max_tx_queues);
+ max_rx_queues = ioread32be(®_bar->max_rx_queues);
/* Alloc and setup the netdev and priv */
dev = alloc_etherdev_mqs(sizeof(*priv), max_tx_queues, max_rx_queues);
if (!dev) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 497/700] Revert "be2net: disable bh with spin_lock in be_process_mcc"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (495 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 496/700] gve: Fix swapped vars when fetching max queues Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 498/700] Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid Greg Kroah-Hartman
` (208 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Petr Oros, David S. Miller, Sasha Levin
From: Petr Oros <poros@redhat.com>
[ Upstream commit d6765985a42a660f078896d5c5b27f97c580a490 ]
Patch was based on wrong presumption that be_poll can be called only
from bh context. It reintroducing old regression (also reverted) and
causing deadlock when we use netconsole with benet in bonding.
Old revert: commit 072a9c486004 ("netpoll: revert 6bdb7fe3104 and fix
be_poll() instead")
[ 331.269715] bond0: (slave enp0s7f0): Releasing backup interface
[ 331.270121] CPU: 4 PID: 1479 Comm: ifenslave Not tainted 5.13.0-rc7+ #2
[ 331.270122] Call Trace:
[ 331.270122] [c00000001789f200] [c0000000008c505c] dump_stack+0x100/0x174 (unreliable)
[ 331.270124] [c00000001789f240] [c008000001238b9c] be_poll+0x64/0xe90 [be2net]
[ 331.270125] [c00000001789f330] [c000000000d1e6e4] netpoll_poll_dev+0x174/0x3d0
[ 331.270127] [c00000001789f400] [c008000001bc167c] bond_poll_controller+0xb4/0x130 [bonding]
[ 331.270128] [c00000001789f450] [c000000000d1e624] netpoll_poll_dev+0xb4/0x3d0
[ 331.270129] [c00000001789f520] [c000000000d1ed88] netpoll_send_skb+0x448/0x470
[ 331.270130] [c00000001789f5d0] [c0080000011f14f8] write_msg+0x180/0x1b0 [netconsole]
[ 331.270131] [c00000001789f640] [c000000000230c0c] console_unlock+0x54c/0x790
[ 331.270132] [c00000001789f7b0] [c000000000233098] vprintk_emit+0x2d8/0x450
[ 331.270133] [c00000001789f810] [c000000000234758] vprintk+0xc8/0x270
[ 331.270134] [c00000001789f850] [c000000000233c28] printk+0x40/0x54
[ 331.270135] [c00000001789f870] [c000000000ccf908] __netdev_printk+0x150/0x198
[ 331.270136] [c00000001789f910] [c000000000ccfdb4] netdev_info+0x68/0x94
[ 331.270137] [c00000001789f950] [c008000001bcbd70] __bond_release_one+0x188/0x6b0 [bonding]
[ 331.270138] [c00000001789faa0] [c008000001bcc6f4] bond_do_ioctl+0x42c/0x490 [bonding]
[ 331.270139] [c00000001789fb60] [c000000000d0d17c] dev_ifsioc+0x17c/0x400
[ 331.270140] [c00000001789fbc0] [c000000000d0db70] dev_ioctl+0x390/0x890
[ 331.270141] [c00000001789fc10] [c000000000c7c76c] sock_do_ioctl+0xac/0x1b0
[ 331.270142] [c00000001789fc90] [c000000000c7ffac] sock_ioctl+0x31c/0x6e0
[ 331.270143] [c00000001789fd60] [c0000000005b9728] sys_ioctl+0xf8/0x150
[ 331.270145] [c00000001789fdb0] [c0000000000336c0] system_call_exception+0x160/0x2f0
[ 331.270146] [c00000001789fe10] [c00000000000d35c] system_call_common+0xec/0x278
[ 331.270147] --- interrupt: c00 at 0x7fffa6c6ec00
[ 331.270147] NIP: 00007fffa6c6ec00 LR: 0000000105c4185c CTR: 0000000000000000
[ 331.270148] REGS: c00000001789fe80 TRAP: 0c00 Not tainted (5.13.0-rc7+)
[ 331.270148] MSR: 800000000280f033 <SF,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE> CR: 28000428 XER: 00000000
[ 331.270155] IRQMASK: 0
[ 331.270156] GPR00: 0000000000000036 00007fffd494d5b0 00007fffa6d57100 0000000000000003
[ 331.270158] GPR04: 0000000000008991 00007fffd494d6d0 0000000000000008 00007fffd494f28c
[ 331.270161] GPR08: 0000000000000003 0000000000000000 0000000000000000 0000000000000000
[ 331.270164] GPR12: 0000000000000000 00007fffa6dfa220 0000000000000000 0000000000000000
[ 331.270167] GPR16: 0000000105c44880 0000000000000000 0000000105c60088 0000000105c60318
[ 331.270170] GPR20: 0000000105c602c0 0000000105c44560 0000000000000000 0000000000000000
[ 331.270172] GPR24: 00007fffd494dc50 00007fffd494d6a8 0000000105c60008 00007fffd494d6d0
[ 331.270175] GPR28: 00007fffd494f27e 0000000105c6026c 00007fffd494f284 0000000000000000
[ 331.270178] NIP [00007fffa6c6ec00] 0x7fffa6c6ec00
[ 331.270178] LR [0000000105c4185c] 0x105c4185c
[ 331.270179] --- interrupt: c00
This reverts commit d0d006a43e9a7a796f6f178839c92fcc222c564d.
Fixes: d0d006a43e9a7a ("be2net: disable bh with spin_lock in be_process_mcc")
Signed-off-by: Petr Oros <poros@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/emulex/benet/be_cmds.c | 6 ++++--
drivers/net/ethernet/emulex/benet/be_main.c | 2 ++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 701c12c9e033..649c5c429bd7 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -550,7 +550,7 @@ int be_process_mcc(struct be_adapter *adapter)
int num = 0, status = 0;
struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
- spin_lock_bh(&adapter->mcc_cq_lock);
+ spin_lock(&adapter->mcc_cq_lock);
while ((compl = be_mcc_compl_get(adapter))) {
if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
@@ -566,7 +566,7 @@ int be_process_mcc(struct be_adapter *adapter)
if (num)
be_cq_notify(adapter, mcc_obj->cq.id, mcc_obj->rearm_cq, num);
- spin_unlock_bh(&adapter->mcc_cq_lock);
+ spin_unlock(&adapter->mcc_cq_lock);
return status;
}
@@ -581,7 +581,9 @@ static int be_mcc_wait_compl(struct be_adapter *adapter)
if (be_check_error(adapter, BE_ERROR_ANY))
return -EIO;
+ local_bh_disable();
status = be_process_mcc(adapter);
+ local_bh_enable();
if (atomic_read(&mcc_obj->q.used) == 0)
break;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 7968568bbe21..361c1c87c183 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -5501,7 +5501,9 @@ static void be_worker(struct work_struct *work)
* mcc completions
*/
if (!netif_running(adapter->netdev)) {
+ local_bh_disable();
be_process_mcc(adapter);
+ local_bh_enable();
goto reschedule;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 498/700] Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (496 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 497/700] Revert "be2net: disable bh with spin_lock in be_process_mcc" Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 499/700] Bluetooth: Fix Set Extended (Scan Response) Data Greg Kroah-Hartman
` (207 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luiz Augusto von Dentz,
Marcel Holtmann, Sasha Levin
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[ Upstream commit 799acb9347915bfe4eac0ff2345b468f0a1ca207 ]
This fixes parsing of LTV entries when the length is 0.
Found with:
tools/mgmt-tester -s "Add Advertising - Success (ScRsp only)"
Add Advertising - Success (ScRsp only) - run
Sending Add Advertising (0x003e)
Test condition added, total 1
[ 11.004577] ==================================================================
[ 11.005292] BUG: KASAN: slab-out-of-bounds in tlv_data_is_valid+0x87/0xe0
[ 11.005984] Read of size 1 at addr ffff888002c695b0 by task mgmt-tester/87
[ 11.006711]
[ 11.007176]
[ 11.007429] Allocated by task 87:
[ 11.008151]
[ 11.008438] The buggy address belongs to the object at ffff888002c69580
[ 11.008438] which belongs to the cache kmalloc-64 of size 64
[ 11.010526] The buggy address is located 48 bytes inside of
[ 11.010526] 64-byte region [ffff888002c69580, ffff888002c695c0)
[ 11.012423] The buggy address belongs to the page:
[ 11.013291]
[ 11.013544] Memory state around the buggy address:
[ 11.014359] ffff888002c69480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 11.015453] ffff888002c69500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 11.016232] >ffff888002c69580: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
[ 11.017010] ^
[ 11.017547] ffff888002c69600: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
[ 11.018296] ffff888002c69680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 11.019116] ==================================================================
Fixes: 2bb36870e8cb2 ("Bluetooth: Unify advertising instance flags check")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/mgmt.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 939c6f77fecc..71de147f5558 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -7579,6 +7579,9 @@ static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
for (i = 0, cur_len = 0; i < len; i += (cur_len + 1)) {
cur_len = data[i];
+ if (!cur_len)
+ continue;
+
if (data[i + 1] == EIR_FLAGS &&
(!is_adv_data || flags_managed(adv_flags)))
return false;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 499/700] Bluetooth: Fix Set Extended (Scan Response) Data
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (497 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 498/700] Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 500/700] Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event Greg Kroah-Hartman
` (206 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luiz Augusto von Dentz,
Marcel Holtmann, Sasha Levin
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[ Upstream commit c9ed0a7077306f9d41d74fb006ab5dbada8349c5 ]
These command do have variable length and the length can go up to 251,
so this changes the struct to not use a fixed size and then when
creating the PDU only the actual length of the data send to the
controller.
Fixes: a0fb3726ba551 ("Bluetooth: Use Set ext adv/scan rsp data if controller supports")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/bluetooth/hci.h | 6 ++--
include/net/bluetooth/hci_core.h | 8 ++---
net/bluetooth/hci_request.c | 51 ++++++++++++++++++--------------
3 files changed, 37 insertions(+), 28 deletions(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ba2f439bc04d..46d99c2778c3 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1773,13 +1773,15 @@ struct hci_cp_ext_adv_set {
__u8 max_events;
} __packed;
+#define HCI_MAX_EXT_AD_LENGTH 251
+
#define HCI_OP_LE_SET_EXT_ADV_DATA 0x2037
struct hci_cp_le_set_ext_adv_data {
__u8 handle;
__u8 operation;
__u8 frag_pref;
__u8 length;
- __u8 data[HCI_MAX_AD_LENGTH];
+ __u8 data[];
} __packed;
#define HCI_OP_LE_SET_EXT_SCAN_RSP_DATA 0x2038
@@ -1788,7 +1790,7 @@ struct hci_cp_le_set_ext_scan_rsp_data {
__u8 operation;
__u8 frag_pref;
__u8 length;
- __u8 data[HCI_MAX_AD_LENGTH];
+ __u8 data[];
} __packed;
#define LE_SET_ADV_DATA_OP_COMPLETE 0x03
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index ca4ac6603b9a..8674141337b7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -228,9 +228,9 @@ struct adv_info {
__u16 remaining_time;
__u16 duration;
__u16 adv_data_len;
- __u8 adv_data[HCI_MAX_AD_LENGTH];
+ __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
__u16 scan_rsp_len;
- __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
+ __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
__s8 tx_power;
__u32 min_interval;
__u32 max_interval;
@@ -550,9 +550,9 @@ struct hci_dev {
DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
__s8 adv_tx_power;
- __u8 adv_data[HCI_MAX_AD_LENGTH];
+ __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
__u8 adv_data_len;
- __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
+ __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
__u8 scan_rsp_data_len;
struct list_head adv_instances;
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 805ce546b813..e5d6b1d12764 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -1685,30 +1685,33 @@ void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance)
return;
if (ext_adv_capable(hdev)) {
- struct hci_cp_le_set_ext_scan_rsp_data cp;
+ struct {
+ struct hci_cp_le_set_ext_scan_rsp_data cp;
+ u8 data[HCI_MAX_EXT_AD_LENGTH];
+ } pdu;
- memset(&cp, 0, sizeof(cp));
+ memset(&pdu, 0, sizeof(pdu));
if (instance)
len = create_instance_scan_rsp_data(hdev, instance,
- cp.data);
+ pdu.data);
else
- len = create_default_scan_rsp_data(hdev, cp.data);
+ len = create_default_scan_rsp_data(hdev, pdu.data);
if (hdev->scan_rsp_data_len == len &&
- !memcmp(cp.data, hdev->scan_rsp_data, len))
+ !memcmp(pdu.data, hdev->scan_rsp_data, len))
return;
- memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
+ memcpy(hdev->scan_rsp_data, pdu.data, len);
hdev->scan_rsp_data_len = len;
- cp.handle = instance;
- cp.length = len;
- cp.operation = LE_SET_ADV_DATA_OP_COMPLETE;
- cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG;
+ pdu.cp.handle = instance;
+ pdu.cp.length = len;
+ pdu.cp.operation = LE_SET_ADV_DATA_OP_COMPLETE;
+ pdu.cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG;
- hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_RSP_DATA, sizeof(cp),
- &cp);
+ hci_req_add(req, HCI_OP_LE_SET_EXT_SCAN_RSP_DATA,
+ sizeof(pdu.cp) + len, &pdu.cp);
} else {
struct hci_cp_le_set_scan_rsp_data cp;
@@ -1831,26 +1834,30 @@ void __hci_req_update_adv_data(struct hci_request *req, u8 instance)
return;
if (ext_adv_capable(hdev)) {
- struct hci_cp_le_set_ext_adv_data cp;
+ struct {
+ struct hci_cp_le_set_ext_adv_data cp;
+ u8 data[HCI_MAX_EXT_AD_LENGTH];
+ } pdu;
- memset(&cp, 0, sizeof(cp));
+ memset(&pdu, 0, sizeof(pdu));
- len = create_instance_adv_data(hdev, instance, cp.data);
+ len = create_instance_adv_data(hdev, instance, pdu.data);
/* There's nothing to do if the data hasn't changed */
if (hdev->adv_data_len == len &&
- memcmp(cp.data, hdev->adv_data, len) == 0)
+ memcmp(pdu.data, hdev->adv_data, len) == 0)
return;
- memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
+ memcpy(hdev->adv_data, pdu.data, len);
hdev->adv_data_len = len;
- cp.length = len;
- cp.handle = instance;
- cp.operation = LE_SET_ADV_DATA_OP_COMPLETE;
- cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG;
+ pdu.cp.length = len;
+ pdu.cp.handle = instance;
+ pdu.cp.operation = LE_SET_ADV_DATA_OP_COMPLETE;
+ pdu.cp.frag_pref = LE_SET_ADV_DATA_NO_FRAG;
- hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_DATA, sizeof(cp), &cp);
+ hci_req_add(req, HCI_OP_LE_SET_EXT_ADV_DATA,
+ sizeof(pdu.cp) + len, &pdu.cp);
} else {
struct hci_cp_le_set_adv_data cp;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 500/700] Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (498 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 499/700] Bluetooth: Fix Set Extended (Scan Response) Data Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 501/700] clk: qcom: gcc: Add support for a new frequency for SC7280 Greg Kroah-Hartman
` (205 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Luiz Augusto von Dentz,
Marcel Holtmann, Sasha Levin
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
[ Upstream commit 23837a6d7a1a61818ed94a6b8af552d6cf7d32d5 ]
Error status of this event means that it has ended due reasons other
than a connection:
'If advertising has terminated as a result of the advertising duration
elapsing, the Status parameter shall be set to the error code
Advertising Timeout (0x3C).'
'If advertising has terminated because the
Max_Extended_Advertising_Events was reached, the Status parameter
shall be set to the error code Limit Reached (0x43).'
Fixes: acf0aeae431a0 ("Bluetooth: Handle ADv set terminated event")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/bluetooth/hci_event.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 03245ab74e67..c6f400b108d9 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5271,8 +5271,19 @@ static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
- if (ev->status)
+ if (ev->status) {
+ struct adv_info *adv;
+
+ adv = hci_find_adv_instance(hdev, ev->handle);
+ if (!adv)
+ return;
+
+ /* Remove advertising as it has been terminated */
+ hci_remove_adv_instance(hdev, ev->handle);
+ mgmt_advertising_removed(NULL, hdev, ev->handle);
+
return;
+ }
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
if (conn) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 501/700] clk: qcom: gcc: Add support for a new frequency for SC7280
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (499 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 500/700] Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 502/700] clk: actions: Fix UART clock dividers on Owl S500 SoC Greg Kroah-Hartman
` (204 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Taniya Das, Stephen Boyd, Sasha Levin
From: Taniya Das <tdas@codeaurora.org>
[ Upstream commit ca1c667f4be935825fffb232a106c9d3f1c09b0b ]
There is a requirement to support 52MHz for qup clocks for bluetooth
usecase, thus update the frequency table to support the frequency.
Fixes: a3cc092196ef ("clk: qcom: Add Global Clock controller (GCC) driver for SC7280")
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lore.kernel.org/r/1624449471-9984-1-git-send-email-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/qcom/gcc-sc7280.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/qcom/gcc-sc7280.c b/drivers/clk/qcom/gcc-sc7280.c
index 22736c16ed16..2db1b07c7044 100644
--- a/drivers/clk/qcom/gcc-sc7280.c
+++ b/drivers/clk/qcom/gcc-sc7280.c
@@ -716,6 +716,7 @@ static const struct freq_tbl ftbl_gcc_qupv3_wrap0_s2_clk_src[] = {
F(29491200, P_GCC_GPLL0_OUT_EVEN, 1, 1536, 15625),
F(32000000, P_GCC_GPLL0_OUT_EVEN, 1, 8, 75),
F(48000000, P_GCC_GPLL0_OUT_EVEN, 1, 4, 25),
+ F(52174000, P_GCC_GPLL0_OUT_MAIN, 1, 2, 23),
F(64000000, P_GCC_GPLL0_OUT_EVEN, 1, 16, 75),
F(75000000, P_GCC_GPLL0_OUT_EVEN, 4, 0, 0),
F(80000000, P_GCC_GPLL0_OUT_EVEN, 1, 4, 15),
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 502/700] clk: actions: Fix UART clock dividers on Owl S500 SoC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (500 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 501/700] clk: qcom: gcc: Add support for a new frequency for SC7280 Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 503/700] clk: actions: Fix SD clocks factor table " Greg Kroah-Hartman
` (203 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Cristian Ciocaltea,
Manivannan Sadhasivam, Stephen Boyd, Sasha Levin
From: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
[ Upstream commit 2dca2a619a907579e3e65e7c1789230c2b912e88 ]
Use correct divider registers for the Actions Semi Owl S500 SoC's UART
clocks.
Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/4714d05982b19ac5fec2ed74f54be42d8238e392.1623354574.git.cristian.ciocaltea@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/actions/owl-s500.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/clk/actions/owl-s500.c b/drivers/clk/actions/owl-s500.c
index 61bb224f6330..75b7186185b0 100644
--- a/drivers/clk/actions/owl-s500.c
+++ b/drivers/clk/actions/owl-s500.c
@@ -305,7 +305,7 @@ static OWL_COMP_FIXED_FACTOR(i2c3_clk, "i2c3_clk", "ethernet_pll_clk",
static OWL_COMP_DIV(uart0_clk, "uart0_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART0CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 6, 0),
- OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
+ OWL_DIVIDER_HW(CMU_UART0CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart1_clk, "uart1_clk", uart_clk_mux_p,
@@ -317,31 +317,31 @@ static OWL_COMP_DIV(uart1_clk, "uart1_clk", uart_clk_mux_p,
static OWL_COMP_DIV(uart2_clk, "uart2_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART2CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 8, 0),
- OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
+ OWL_DIVIDER_HW(CMU_UART2CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart3_clk, "uart3_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART3CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 19, 0),
- OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
+ OWL_DIVIDER_HW(CMU_UART3CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart4_clk, "uart4_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART4CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 20, 0),
- OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
+ OWL_DIVIDER_HW(CMU_UART4CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart5_clk, "uart5_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART5CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 21, 0),
- OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
+ OWL_DIVIDER_HW(CMU_UART5CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart6_clk, "uart6_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART6CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 18, 0),
- OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
+ OWL_DIVIDER_HW(CMU_UART6CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(i2srx_clk, "i2srx_clk", i2s_clk_mux_p,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 503/700] clk: actions: Fix SD clocks factor table on Owl S500 SoC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (501 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 502/700] clk: actions: Fix UART clock dividers on Owl S500 SoC Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 504/700] clk: actions: Fix bisp_factor_table based clocks " Greg Kroah-Hartman
` (202 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Cristian Ciocaltea,
Manivannan Sadhasivam, Stephen Boyd, Sasha Levin
From: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
[ Upstream commit fe1f71e338d77814da3ef44e9f64d32981a6ccdf ]
Drop the unsupported entries in the factor table used for the SD[0-2]
clocks definitions on the Actions Semi Owl S500 SoC.
Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/196c948d708a22b8198c95f064a0f6b6820f9980.1623354574.git.cristian.ciocaltea@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/actions/owl-s500.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/actions/owl-s500.c b/drivers/clk/actions/owl-s500.c
index 75b7186185b0..42abdf964044 100644
--- a/drivers/clk/actions/owl-s500.c
+++ b/drivers/clk/actions/owl-s500.c
@@ -127,8 +127,7 @@ static struct clk_factor_table sd_factor_table[] = {
{ 12, 1, 13 }, { 13, 1, 14 }, { 14, 1, 15 }, { 15, 1, 16 },
{ 16, 1, 17 }, { 17, 1, 18 }, { 18, 1, 19 }, { 19, 1, 20 },
{ 20, 1, 21 }, { 21, 1, 22 }, { 22, 1, 23 }, { 23, 1, 24 },
- { 24, 1, 25 }, { 25, 1, 26 }, { 26, 1, 27 }, { 27, 1, 28 },
- { 28, 1, 29 }, { 29, 1, 30 }, { 30, 1, 31 }, { 31, 1, 32 },
+ { 24, 1, 25 },
/* bit8: /128 */
{ 256, 1, 1 * 128 }, { 257, 1, 2 * 128 }, { 258, 1, 3 * 128 }, { 259, 1, 4 * 128 },
@@ -137,8 +136,7 @@ static struct clk_factor_table sd_factor_table[] = {
{ 268, 1, 13 * 128 }, { 269, 1, 14 * 128 }, { 270, 1, 15 * 128 }, { 271, 1, 16 * 128 },
{ 272, 1, 17 * 128 }, { 273, 1, 18 * 128 }, { 274, 1, 19 * 128 }, { 275, 1, 20 * 128 },
{ 276, 1, 21 * 128 }, { 277, 1, 22 * 128 }, { 278, 1, 23 * 128 }, { 279, 1, 24 * 128 },
- { 280, 1, 25 * 128 }, { 281, 1, 26 * 128 }, { 282, 1, 27 * 128 }, { 283, 1, 28 * 128 },
- { 284, 1, 29 * 128 }, { 285, 1, 30 * 128 }, { 286, 1, 31 * 128 }, { 287, 1, 32 * 128 },
+ { 280, 1, 25 * 128 },
{ 0, 0, 0 },
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 504/700] clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (502 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 503/700] clk: actions: Fix SD clocks factor table " Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 505/700] clk: actions: Fix AHPPREDIV-H-AHB clock chain " Greg Kroah-Hartman
` (201 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Cristian Ciocaltea,
Manivannan Sadhasivam, Stephen Boyd, Sasha Levin
From: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
[ Upstream commit a8f1f03caa51aa7a69c671aa87c475034db7d368 ]
The following clocks of the Actions Semi Owl S500 SoC have been defined
to use a shared clock factor table 'bisp_factor_table[]': DE[1-2], VCE,
VDE, BISP, SENSOR[0-1]
There are several issues involved in this approach:
* 'bisp_factor_table[]' describes the configuration of a regular 8-rates
divider, so its usage is redundant. Additionally, judging by the BISP
clock context, it is incomplete since it maps only 8 out of 12
possible entries.
* The clocks mentioned above are not identical in terms of the available
rates, therefore cannot rely on the same factor table. Specifically,
BISP and SENSOR* are standard 12-rate dividers so their configuration
should rely on a proper clock div table, while VCE and VDE require a
factor table that is a actually a subset of the one needed for DE[1-2]
clocks.
Let's fix this by implementing the following:
* Add new factor tables 'de_factor_table' and 'hde_factor_table' to
properly handle DE[1-2], VCE and VDE clocks.
* Add a common div table 'std12rate_div_table' for BISP and SENSOR[0-1]
clocks converted to OWL_COMP_DIV.
* Drop the now unused 'bisp_factor_table[]'.
Additionally, drop the CLK_IGNORE_UNUSED flag for SENSOR[0-1] since
there is no reason to always keep ON those clocks.
Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/e675820a46cd9930d8d576c6cae61d41c1a8416f.1623354574.git.cristian.ciocaltea@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/actions/owl-s500.c | 44 ++++++++++++++++++++++------------
1 file changed, 29 insertions(+), 15 deletions(-)
diff --git a/drivers/clk/actions/owl-s500.c b/drivers/clk/actions/owl-s500.c
index 42abdf964044..42d6899755e6 100644
--- a/drivers/clk/actions/owl-s500.c
+++ b/drivers/clk/actions/owl-s500.c
@@ -140,9 +140,16 @@ static struct clk_factor_table sd_factor_table[] = {
{ 0, 0, 0 },
};
-static struct clk_factor_table bisp_factor_table[] = {
- { 0, 1, 1 }, { 1, 1, 2 }, { 2, 1, 3 }, { 3, 1, 4 },
- { 4, 1, 5 }, { 5, 1, 6 }, { 6, 1, 7 }, { 7, 1, 8 },
+static struct clk_factor_table de_factor_table[] = {
+ { 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 2, 5 },
+ { 4, 1, 3 }, { 5, 1, 4 }, { 6, 1, 6 }, { 7, 1, 8 },
+ { 8, 1, 12 },
+ { 0, 0, 0 },
+};
+
+static struct clk_factor_table hde_factor_table[] = {
+ { 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 2, 5 },
+ { 4, 1, 3 }, { 5, 1, 4 }, { 6, 1, 6 }, { 7, 1, 8 },
{ 0, 0, 0 },
};
@@ -156,6 +163,13 @@ static struct clk_div_table rmii_ref_div_table[] = {
{ 0, 0 },
};
+static struct clk_div_table std12rate_div_table[] = {
+ { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
+ { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
+ { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
+ { 0, 0 },
+};
+
static struct clk_div_table i2s_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
{ 4, 6 }, { 5, 8 }, { 6, 12 }, { 7, 16 },
@@ -191,39 +205,39 @@ static OWL_DIVIDER(rmii_ref_clk, "rmii_ref_clk", "ethernet_pll_clk", CMU_ETHERNE
/* factor clocks */
static OWL_FACTOR(ahb_clk, "ahb_clk", "h_clk", CMU_BUSCLK1, 2, 2, ahb_factor_table, 0, 0);
-static OWL_FACTOR(de1_clk, "de_clk1", "de_clk", CMU_DECLK, 0, 3, bisp_factor_table, 0, 0);
-static OWL_FACTOR(de2_clk, "de_clk2", "de_clk", CMU_DECLK, 4, 3, bisp_factor_table, 0, 0);
+static OWL_FACTOR(de1_clk, "de_clk1", "de_clk", CMU_DECLK, 0, 4, de_factor_table, 0, 0);
+static OWL_FACTOR(de2_clk, "de_clk2", "de_clk", CMU_DECLK, 4, 4, de_factor_table, 0, 0);
/* composite clocks */
static OWL_COMP_FACTOR(vce_clk, "vce_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_VCECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 26, 0),
- OWL_FACTOR_HW(CMU_VCECLK, 0, 3, 0, bisp_factor_table),
+ OWL_FACTOR_HW(CMU_VCECLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_FACTOR(vde_clk, "vde_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_VDECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 25, 0),
- OWL_FACTOR_HW(CMU_VDECLK, 0, 3, 0, bisp_factor_table),
+ OWL_FACTOR_HW(CMU_VDECLK, 0, 3, 0, hde_factor_table),
0);
-static OWL_COMP_FACTOR(bisp_clk, "bisp_clk", bisp_clk_mux_p,
+static OWL_COMP_DIV(bisp_clk, "bisp_clk", bisp_clk_mux_p,
OWL_MUX_HW(CMU_BISPCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
- OWL_FACTOR_HW(CMU_BISPCLK, 0, 3, 0, bisp_factor_table),
+ OWL_DIVIDER_HW(CMU_BISPCLK, 0, 4, 0, std12rate_div_table),
0);
-static OWL_COMP_FACTOR(sensor0_clk, "sensor0_clk", sensor_clk_mux_p,
+static OWL_COMP_DIV(sensor0_clk, "sensor0_clk", sensor_clk_mux_p,
OWL_MUX_HW(CMU_SENSORCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
- OWL_FACTOR_HW(CMU_SENSORCLK, 0, 3, 0, bisp_factor_table),
- CLK_IGNORE_UNUSED);
+ OWL_DIVIDER_HW(CMU_SENSORCLK, 0, 4, 0, std12rate_div_table),
+ 0);
-static OWL_COMP_FACTOR(sensor1_clk, "sensor1_clk", sensor_clk_mux_p,
+static OWL_COMP_DIV(sensor1_clk, "sensor1_clk", sensor_clk_mux_p,
OWL_MUX_HW(CMU_SENSORCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
- OWL_FACTOR_HW(CMU_SENSORCLK, 8, 3, 0, bisp_factor_table),
- CLK_IGNORE_UNUSED);
+ OWL_DIVIDER_HW(CMU_SENSORCLK, 8, 4, 0, std12rate_div_table),
+ 0);
static OWL_COMP_FACTOR(sd0_clk, "sd0_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD0CLK, 9, 1),
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 505/700] clk: actions: Fix AHPPREDIV-H-AHB clock chain on Owl S500 SoC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (503 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 504/700] clk: actions: Fix bisp_factor_table based clocks " Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 506/700] clk: qcom: clk-alpha-pll: fix CAL_L write in alpha_pll_fabia_prepare Greg Kroah-Hartman
` (200 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Cristian Ciocaltea,
Manivannan Sadhasivam, Stephen Boyd, Sasha Levin
From: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
[ Upstream commit fd90b5b9045274360b12cea0f2ce50f3bcfb25cc ]
There are a few issues with the setup of the Actions Semi Owl S500 SoC's
clock chain involving AHPPREDIV, H and AHB clocks:
* AHBPREDIV clock is defined as a muxer only, although it also acts as
a divider.
* H clock is using a wrong divider register offset
* AHB is defined as a multi-rate factor clock, but it is actually just
a fixed pass clock.
Let's provide the following fixes:
* Change AHBPREDIV clock to an ungated OWL_COMP_DIV definition.
* Use the correct register shift value in the OWL_DIVIDER definition
for H clock
* Drop the unneeded 'ahb_factor_table[]' and change AHB clock to an
ungated OWL_COMP_FIXED_FACTOR definition.
Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Link: https://lore.kernel.org/r/21c1abd19a7089b65a34852ac6513961be88cbe1.1623354574.git.cristian.ciocaltea@gmail.com
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/actions/owl-s500.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/clk/actions/owl-s500.c b/drivers/clk/actions/owl-s500.c
index 42d6899755e6..cbeb51c804eb 100644
--- a/drivers/clk/actions/owl-s500.c
+++ b/drivers/clk/actions/owl-s500.c
@@ -153,11 +153,6 @@ static struct clk_factor_table hde_factor_table[] = {
{ 0, 0, 0 },
};
-static struct clk_factor_table ahb_factor_table[] = {
- { 1, 1, 2 }, { 2, 1, 3 },
- { 0, 0, 0 },
-};
-
static struct clk_div_table rmii_ref_div_table[] = {
{ 0, 4 }, { 1, 10 },
{ 0, 0 },
@@ -186,7 +181,6 @@ static struct clk_div_table nand_div_table[] = {
/* mux clock */
static OWL_MUX(dev_clk, "dev_clk", dev_clk_mux_p, CMU_DEVPLL, 12, 1, CLK_SET_RATE_PARENT);
-static OWL_MUX(ahbprediv_clk, "ahbprediv_clk", ahbprediv_clk_mux_p, CMU_BUSCLK1, 8, 3, CLK_SET_RATE_PARENT);
/* gate clocks */
static OWL_GATE(gpio_clk, "gpio_clk", "apb_clk", CMU_DEVCLKEN0, 18, 0, 0);
@@ -199,16 +193,25 @@ static OWL_GATE(timer_clk, "timer_clk", "hosc", CMU_DEVCLKEN1, 27, 0, 0);
static OWL_GATE(hdmi_clk, "hdmi_clk", "hosc", CMU_DEVCLKEN1, 3, 0, 0);
/* divider clocks */
-static OWL_DIVIDER(h_clk, "h_clk", "ahbprediv_clk", CMU_BUSCLK1, 12, 2, NULL, 0, 0);
+static OWL_DIVIDER(h_clk, "h_clk", "ahbprediv_clk", CMU_BUSCLK1, 2, 2, NULL, 0, 0);
static OWL_DIVIDER(apb_clk, "apb_clk", "ahb_clk", CMU_BUSCLK1, 14, 2, NULL, 0, 0);
static OWL_DIVIDER(rmii_ref_clk, "rmii_ref_clk", "ethernet_pll_clk", CMU_ETHERNETPLL, 1, 1, rmii_ref_div_table, 0, 0);
/* factor clocks */
-static OWL_FACTOR(ahb_clk, "ahb_clk", "h_clk", CMU_BUSCLK1, 2, 2, ahb_factor_table, 0, 0);
static OWL_FACTOR(de1_clk, "de_clk1", "de_clk", CMU_DECLK, 0, 4, de_factor_table, 0, 0);
static OWL_FACTOR(de2_clk, "de_clk2", "de_clk", CMU_DECLK, 4, 4, de_factor_table, 0, 0);
/* composite clocks */
+static OWL_COMP_DIV(ahbprediv_clk, "ahbprediv_clk", ahbprediv_clk_mux_p,
+ OWL_MUX_HW(CMU_BUSCLK1, 8, 3),
+ { 0 },
+ OWL_DIVIDER_HW(CMU_BUSCLK1, 12, 2, 0, NULL),
+ CLK_SET_RATE_PARENT);
+
+static OWL_COMP_FIXED_FACTOR(ahb_clk, "ahb_clk", "h_clk",
+ { 0 },
+ 1, 1, 0);
+
static OWL_COMP_FACTOR(vce_clk, "vce_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_VCECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 26, 0),
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 506/700] clk: qcom: clk-alpha-pll: fix CAL_L write in alpha_pll_fabia_prepare
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (504 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 505/700] clk: actions: Fix AHPPREDIV-H-AHB clock chain " Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 507/700] clk: si5341: Wait for DEVICE_READY on startup Greg Kroah-Hartman
` (199 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Marek, Stephen Boyd, Sasha Levin
From: Jonathan Marek <jonathan@marek.ca>
[ Upstream commit 7f54bf2640e877c8a9b4cc7e2b29f82e3ca1a284 ]
Caught this when looking at alpha-pll code. Untested but it is clear that
this was intended to write to PLL_CAL_L_VAL and not PLL_ALPHA_VAL.
Fixes: 691865bad627 ("clk: qcom: clk-alpha-pll: Add support for Fabia PLL calibration")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20210609022852.4151-1-jonathan@marek.ca
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/qcom/clk-alpha-pll.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index c6eb99169ddc..6f8f0bbc5ab5 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -1234,7 +1234,7 @@ static int alpha_pll_fabia_prepare(struct clk_hw *hw)
return ret;
/* Setup PLL for calibration frequency */
- regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), cal_l);
+ regmap_write(pll->clkr.regmap, PLL_CAL_L_VAL(pll), cal_l);
/* Bringup the PLL at calibration frequency */
ret = clk_alpha_pll_enable(hw);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 507/700] clk: si5341: Wait for DEVICE_READY on startup
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (505 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 506/700] clk: qcom: clk-alpha-pll: fix CAL_L write in alpha_pll_fabia_prepare Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 508/700] clk: si5341: Avoid divide errors due to bogus register contents Greg Kroah-Hartman
` (198 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Robert Hancock, Stephen Boyd, Sasha Levin
From: Robert Hancock <robert.hancock@calian.com>
[ Upstream commit 6e7d2de1e000d36990923ed80d2e78dfcb545cee ]
The Si5341 datasheet warns that before accessing any other registers,
including the PAGE register, we need to wait for the DEVICE_READY register
to indicate the device is ready, or the process of the device loading its
state from NVM can be corrupted. Wait for DEVICE_READY on startup before
continuing initialization. This is done using a raw I2C register read
prior to setting up regmap to avoid any potential unwanted automatic PAGE
register accesses from regmap at this stage.
Fixes: 3044a860fd ("clk: Add Si5341/Si5340 driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20210325192643.2190069-3-robert.hancock@calian.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/clk-si5341.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c
index e0446e66fa64..b8a960e927bc 100644
--- a/drivers/clk/clk-si5341.c
+++ b/drivers/clk/clk-si5341.c
@@ -94,6 +94,7 @@ struct clk_si5341_output_config {
#define SI5341_STATUS 0x000C
#define SI5341_SOFT_RST 0x001C
#define SI5341_IN_SEL 0x0021
+#define SI5341_DEVICE_READY 0x00FE
#define SI5341_XAXB_CFG 0x090E
#define SI5341_IN_EN 0x0949
#define SI5341_INX_TO_PFD_EN 0x094A
@@ -1189,6 +1190,32 @@ static const struct regmap_range_cfg si5341_regmap_ranges[] = {
},
};
+static int si5341_wait_device_ready(struct i2c_client *client)
+{
+ int count;
+
+ /* Datasheet warns: Any attempt to read or write any register other
+ * than DEVICE_READY before DEVICE_READY reads as 0x0F may corrupt the
+ * NVM programming and may corrupt the register contents, as they are
+ * read from NVM. Note that this includes accesses to the PAGE register.
+ * Also: DEVICE_READY is available on every register page, so no page
+ * change is needed to read it.
+ * Do this outside regmap to avoid automatic PAGE register access.
+ * May take up to 300ms to complete.
+ */
+ for (count = 0; count < 15; ++count) {
+ s32 result = i2c_smbus_read_byte_data(client,
+ SI5341_DEVICE_READY);
+ if (result < 0)
+ return result;
+ if (result == 0x0F)
+ return 0;
+ msleep(20);
+ }
+ dev_err(&client->dev, "timeout waiting for DEVICE_READY\n");
+ return -EIO;
+}
+
static const struct regmap_config si5341_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -1385,6 +1412,11 @@ static int si5341_probe(struct i2c_client *client,
data->i2c_client = client;
+ /* Must be done before otherwise touching hardware */
+ err = si5341_wait_device_ready(client);
+ if (err)
+ return err;
+
for (i = 0; i < SI5341_NUM_INPUTS; ++i) {
input = devm_clk_get(&client->dev, si5341_input_clock_names[i]);
if (IS_ERR(input)) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 508/700] clk: si5341: Avoid divide errors due to bogus register contents
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (506 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 507/700] clk: si5341: Wait for DEVICE_READY on startup Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 509/700] clk: si5341: Check for input clock presence and PLL lock on startup Greg Kroah-Hartman
` (197 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Robert Hancock, Stephen Boyd, Sasha Levin
From: Robert Hancock <robert.hancock@calian.com>
[ Upstream commit 78f6f406026d688868223d5dbeb197a4f7e9a9fd ]
If the Si5341 is being initially programmed and has no stored NVM
configuration, some of the register contents may contain unexpected
values, such as zeros, which could cause divide by zero errors during
driver initialization. Trap errors caused by zero registers or zero clock
rates which could result in divide errors later in the code.
Fixes: 3044a860fd ("clk: Add Si5341/Si5340 driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20210325192643.2190069-4-robert.hancock@calian.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/clk-si5341.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c
index b8a960e927bc..ac1ccec2b681 100644
--- a/drivers/clk/clk-si5341.c
+++ b/drivers/clk/clk-si5341.c
@@ -624,6 +624,9 @@ static unsigned long si5341_synth_clk_recalc_rate(struct clk_hw *hw,
SI5341_SYNTH_N_NUM(synth->index), &n_num, &n_den);
if (err < 0)
return err;
+ /* Check for bogus/uninitialized settings */
+ if (!n_num || !n_den)
+ return 0;
/*
* n_num and n_den are shifted left as much as possible, so to prevent
@@ -807,6 +810,9 @@ static long si5341_output_clk_round_rate(struct clk_hw *hw, unsigned long rate,
{
unsigned long r;
+ if (!rate)
+ return 0;
+
r = *parent_rate >> 1;
/* If rate is an even divisor, no changes to parent required */
@@ -835,11 +841,16 @@ static int si5341_output_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_si5341_output *output = to_clk_si5341_output(hw);
- /* Frequency divider is (r_div + 1) * 2 */
- u32 r_div = (parent_rate / rate) >> 1;
+ u32 r_div;
int err;
u8 r[3];
+ if (!rate)
+ return -EINVAL;
+
+ /* Frequency divider is (r_div + 1) * 2 */
+ r_div = (parent_rate / rate) >> 1;
+
if (r_div <= 1)
r_div = 0;
else if (r_div >= BIT(24))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 509/700] clk: si5341: Check for input clock presence and PLL lock on startup
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (507 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 508/700] clk: si5341: Avoid divide errors due to bogus register contents Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 510/700] clk: si5341: Update initialization magic Greg Kroah-Hartman
` (196 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Robert Hancock, Stephen Boyd, Sasha Levin
From: Robert Hancock <robert.hancock@calian.com>
[ Upstream commit 71dcc4d1f7d2ad97ff7ab831281bc6893ff713a2 ]
After initializing the device, wait for it to report that the input
clock is present and the PLL has locked before declaring success.
Fixes: 3044a860fd ("clk: Add Si5341/Si5340 driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20210325192643.2190069-5-robert.hancock@calian.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/clk-si5341.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c
index ac1ccec2b681..da40b90c2aa8 100644
--- a/drivers/clk/clk-si5341.c
+++ b/drivers/clk/clk-si5341.c
@@ -92,6 +92,9 @@ struct clk_si5341_output_config {
#define SI5341_PN_BASE 0x0002
#define SI5341_DEVICE_REV 0x0005
#define SI5341_STATUS 0x000C
+#define SI5341_LOS 0x000D
+#define SI5341_STATUS_STICKY 0x0011
+#define SI5341_LOS_STICKY 0x0012
#define SI5341_SOFT_RST 0x001C
#define SI5341_IN_SEL 0x0021
#define SI5341_DEVICE_READY 0x00FE
@@ -99,6 +102,12 @@ struct clk_si5341_output_config {
#define SI5341_IN_EN 0x0949
#define SI5341_INX_TO_PFD_EN 0x094A
+/* Status bits */
+#define SI5341_STATUS_SYSINCAL BIT(0)
+#define SI5341_STATUS_LOSXAXB BIT(1)
+#define SI5341_STATUS_LOSREF BIT(2)
+#define SI5341_STATUS_LOL BIT(3)
+
/* Input selection */
#define SI5341_IN_SEL_MASK 0x06
#define SI5341_IN_SEL_SHIFT 1
@@ -1416,6 +1425,7 @@ static int si5341_probe(struct i2c_client *client,
unsigned int i;
struct clk_si5341_output_config config[SI5341_MAX_NUM_OUTPUTS];
bool initialization_required;
+ u32 status;
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -1583,6 +1593,22 @@ static int si5341_probe(struct i2c_client *client,
return err;
}
+ /* wait for device to report input clock present and PLL lock */
+ err = regmap_read_poll_timeout(data->regmap, SI5341_STATUS, status,
+ !(status & (SI5341_STATUS_LOSREF | SI5341_STATUS_LOL)),
+ 10000, 250000);
+ if (err) {
+ dev_err(&client->dev, "Error waiting for input clock or PLL lock\n");
+ return err;
+ }
+
+ /* clear sticky alarm bits from initialization */
+ err = regmap_write(data->regmap, SI5341_STATUS_STICKY, 0);
+ if (err) {
+ dev_err(&client->dev, "unable to clear sticky status\n");
+ return err;
+ }
+
/* Free the names, clk framework makes copies */
for (i = 0; i < data->num_synth; ++i)
devm_kfree(&client->dev, (void *)synth_clock_names[i]);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 510/700] clk: si5341: Update initialization magic
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (508 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 509/700] clk: si5341: Check for input clock presence and PLL lock on startup Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 511/700] bpf, x86: Fix extable offset calculation Greg Kroah-Hartman
` (195 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Robert Hancock, Stephen Boyd, Sasha Levin
From: Robert Hancock <robert.hancock@calian.com>
[ Upstream commit 3c9b49b0031aefb81adfdba5ab0ddf3ca3a2cdc9 ]
Update the default register settings to include the VCO_RESET_CALCODE
settings (set by the SiLabs ClockBuilder software but not described in
the datasheet). Also update part of the initialization sequence to match
ClockBuilder and the datasheet.
Fixes: 3044a860fd ("clk: Add Si5341/Si5340 driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20210325192643.2190069-6-robert.hancock@calian.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/clk-si5341.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c
index da40b90c2aa8..eb22f4fdbc6b 100644
--- a/drivers/clk/clk-si5341.c
+++ b/drivers/clk/clk-si5341.c
@@ -350,6 +350,8 @@ static const struct si5341_reg_default si5341_reg_defaults[] = {
{ 0x094A, 0x00 }, /* INx_TO_PFD_EN (disabled) */
{ 0x0A02, 0x00 }, /* Not in datasheet */
{ 0x0B44, 0x0F }, /* PDIV_ENB (datasheet does not mention what it is) */
+ { 0x0B57, 0x10 }, /* VCO_RESET_CALCODE (not described in datasheet) */
+ { 0x0B58, 0x05 }, /* VCO_RESET_CALCODE (not described in datasheet) */
};
/* Read and interpret a 44-bit followed by a 32-bit value in the regmap */
@@ -1104,7 +1106,7 @@ static const struct si5341_reg_default si5341_preamble[] = {
{ 0x0B25, 0x00 },
{ 0x0502, 0x01 },
{ 0x0505, 0x03 },
- { 0x0957, 0x1F },
+ { 0x0957, 0x17 },
{ 0x0B4E, 0x1A },
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 511/700] bpf, x86: Fix extable offset calculation
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (509 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 510/700] clk: si5341: Update initialization magic Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 512/700] writeback: fix obtain a reference to a freeing memcg css Greg Kroah-Hartman
` (194 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ravi Bangoria, Alexei Starovoitov,
Daniel Borkmann, Sasha Levin
From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
[ Upstream commit 328aac5ecd119ede3633f7d17969b1ff34ccc784 ]
Commit 4c5de127598e1 ("bpf: Emit explicit NULL pointer checks for PROBE_LDX
instructions.") is emitting a couple of instructions before the actual load.
Consider those additional instructions while calculating extable offset.
Fixes: 4c5de127598e1 ("bpf: Emit explicit NULL pointer checks for PROBE_LDX instructions.")
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210622110026.1157847-1-ravi.bangoria@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/net/bpf_jit_comp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 7f1b3a862e14..1fb0c37e48cb 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -1297,7 +1297,7 @@ st: if (is_imm8(insn->off))
emit_ldx(&prog, BPF_SIZE(insn->code), dst_reg, src_reg, insn->off);
if (BPF_MODE(insn->code) == BPF_PROBE_MEM) {
struct exception_table_entry *ex;
- u8 *_insn = image + proglen;
+ u8 *_insn = image + proglen + (start_of_ldx - temp);
s64 delta;
/* populate jmp_offset for JMP above */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 512/700] writeback: fix obtain a reference to a freeing memcg css
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (510 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 511/700] bpf, x86: Fix extable offset calculation Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 513/700] net: lwtunnel: handle MTU calculation in forwading Greg Kroah-Hartman
` (193 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Muchun Song, Michal Hocko, Tejun Heo,
Jan Kara, Sasha Levin
From: Muchun Song <songmuchun@bytedance.com>
[ Upstream commit 8b0ed8443ae6458786580d36b7d5f8125535c5d4 ]
The caller of wb_get_create() should pin the memcg, because
wb_get_create() relies on this guarantee. The rcu read lock
only can guarantee that the memcg css returned by css_from_id()
cannot be released, but the reference of the memcg can be zero.
rcu_read_lock()
memcg_css = css_from_id()
wb_get_create(memcg_css)
cgwb_create(memcg_css)
// css_get can change the ref counter from 0 back to 1
css_get(memcg_css)
rcu_read_unlock()
Fix it by holding a reference to the css before calling
wb_get_create(). This is not a problem I encountered in the
real world. Just the result of a code review.
Fixes: 682aa8e1a6a1 ("writeback: implement unlocked_inode_to_wb transaction and use it for stat updates")
Link: https://lore.kernel.org/r/20210402091145.80635-1-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/fs-writeback.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index d684f541af48..8d4130b01423 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -510,9 +510,14 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id)
/* find and pin the new wb */
rcu_read_lock();
memcg_css = css_from_id(new_wb_id, &memory_cgrp_subsys);
- if (memcg_css)
- isw->new_wb = wb_get_create(bdi, memcg_css, GFP_ATOMIC);
+ if (memcg_css && !css_tryget(memcg_css))
+ memcg_css = NULL;
rcu_read_unlock();
+ if (!memcg_css)
+ goto out_free;
+
+ isw->new_wb = wb_get_create(bdi, memcg_css, GFP_ATOMIC);
+ css_put(memcg_css);
if (!isw->new_wb)
goto out_free;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 513/700] net: lwtunnel: handle MTU calculation in forwading
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (511 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 512/700] writeback: fix obtain a reference to a freeing memcg css Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 514/700] net: sched: fix warning in tcindex_alloc_perfect_hash Greg Kroah-Hartman
` (192 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, David Ahern, Vadim Fedorenko,
David Ahern, David S. Miller, Sasha Levin
From: Vadim Fedorenko <vfedorenko@novek.ru>
[ Upstream commit fade56410c22cacafb1be9f911a0afd3701d8366 ]
Commit 14972cbd34ff ("net: lwtunnel: Handle fragmentation") moved
fragmentation logic away from lwtunnel by carry encap headroom and
use it in output MTU calculation. But the forwarding part was not
covered and created difference in MTU for output and forwarding and
further to silent drops on ipv4 forwarding path. Fix it by taking
into account lwtunnel encap headroom.
The same commit also introduced difference in how to treat RTAX_MTU
in IPv4 and IPv6 where latter explicitly removes lwtunnel encap
headroom from route MTU. Make IPv4 version do the same.
Fixes: 14972cbd34ff ("net: lwtunnel: Handle fragmentation")
Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/ip.h | 12 ++++++++----
include/net/ip6_route.h | 16 ++++++++++++----
net/ipv4/route.c | 3 ++-
3 files changed, 22 insertions(+), 9 deletions(-)
diff --git a/include/net/ip.h b/include/net/ip.h
index e20874059f82..d9683bef8684 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -31,6 +31,7 @@
#include <net/flow.h>
#include <net/flow_dissector.h>
#include <net/netns/hash.h>
+#include <net/lwtunnel.h>
#define IPV4_MAX_PMTU 65535U /* RFC 2675, Section 5.1 */
#define IPV4_MIN_MTU 68 /* RFC 791 */
@@ -445,22 +446,25 @@ static inline unsigned int ip_dst_mtu_maybe_forward(const struct dst_entry *dst,
/* 'forwarding = true' case should always honour route mtu */
mtu = dst_metric_raw(dst, RTAX_MTU);
- if (mtu)
- return mtu;
+ if (!mtu)
+ mtu = min(READ_ONCE(dst->dev->mtu), IP_MAX_MTU);
- return min(READ_ONCE(dst->dev->mtu), IP_MAX_MTU);
+ return mtu - lwtunnel_headroom(dst->lwtstate, mtu);
}
static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
const struct sk_buff *skb)
{
+ unsigned int mtu;
+
if (!sk || !sk_fullsock(sk) || ip_sk_use_pmtu(sk)) {
bool forwarding = IPCB(skb)->flags & IPSKB_FORWARDED;
return ip_dst_mtu_maybe_forward(skb_dst(skb), forwarding);
}
- return min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
+ mtu = min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
+ return mtu - lwtunnel_headroom(skb_dst(skb)->lwtstate, mtu);
}
struct dst_metrics *ip_fib_metrics_init(struct net *net, struct nlattr *fc_mx,
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index f51a118bfce8..f14149df5a65 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -265,11 +265,18 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
{
+ int mtu;
+
struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
inet6_sk(skb->sk) : NULL;
- return (np && np->pmtudisc >= IPV6_PMTUDISC_PROBE) ?
- skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
+ if (np && np->pmtudisc >= IPV6_PMTUDISC_PROBE) {
+ mtu = READ_ONCE(skb_dst(skb)->dev->mtu);
+ mtu -= lwtunnel_headroom(skb_dst(skb)->lwtstate, mtu);
+ } else
+ mtu = dst_mtu(skb_dst(skb));
+
+ return mtu;
}
static inline bool ip6_sk_accept_pmtu(const struct sock *sk)
@@ -317,7 +324,7 @@ static inline unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst)
if (dst_metric_locked(dst, RTAX_MTU)) {
mtu = dst_metric_raw(dst, RTAX_MTU);
if (mtu)
- return mtu;
+ goto out;
}
mtu = IPV6_MIN_MTU;
@@ -327,7 +334,8 @@ static inline unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst)
mtu = idev->cnf.mtu6;
rcu_read_unlock();
- return mtu;
+out:
+ return mtu - lwtunnel_headroom(dst->lwtstate, mtu);
}
u32 ip6_mtu_from_fib6(const struct fib6_result *res,
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 09506203156d..484064daa95a 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1331,7 +1331,7 @@ INDIRECT_CALLABLE_SCOPE unsigned int ipv4_mtu(const struct dst_entry *dst)
mtu = dst_metric_raw(dst, RTAX_MTU);
if (mtu)
- return mtu;
+ goto out;
mtu = READ_ONCE(dst->dev->mtu);
@@ -1340,6 +1340,7 @@ INDIRECT_CALLABLE_SCOPE unsigned int ipv4_mtu(const struct dst_entry *dst)
mtu = 576;
}
+out:
mtu = min_t(unsigned int, mtu, IP_MAX_MTU);
return mtu - lwtunnel_headroom(dst->lwtstate, mtu);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 514/700] net: sched: fix warning in tcindex_alloc_perfect_hash
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (512 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 513/700] net: lwtunnel: handle MTU calculation in forwading Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 515/700] net: tipc: fix FB_MTU eat two pages Greg Kroah-Hartman
` (191 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Cong Wang,
David S. Miller, Sasha Levin, syzbot+1071ad60cd7df39fdadb
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit 3f2db250099f46988088800052cdf2332c7aba61 ]
Syzbot reported warning in tcindex_alloc_perfect_hash. The problem
was in too big cp->hash, which triggers warning in kmalloc. Since
cp->hash comes from userspace, there is no need to warn if value
is not correct
Fixes: b9a24bb76bf6 ("net_sched: properly handle failure case of tcf_exts_init()")
Reported-and-tested-by: syzbot+1071ad60cd7df39fdadb@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/sched/cls_tcindex.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index c4007b9cd16d..5b274534264c 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -304,7 +304,7 @@ static int tcindex_alloc_perfect_hash(struct net *net, struct tcindex_data *cp)
int i, err = 0;
cp->perfect = kcalloc(cp->hash, sizeof(struct tcindex_filter_result),
- GFP_KERNEL);
+ GFP_KERNEL | __GFP_NOWARN);
if (!cp->perfect)
return -ENOMEM;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 515/700] net: tipc: fix FB_MTU eat two pages
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (513 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 514/700] net: sched: fix warning in tcindex_alloc_perfect_hash Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:09 ` [PATCH 5.12 516/700] RDMA/mlx5: Dont access NULL-cleared mpi pointer Greg Kroah-Hartman
` (190 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Menglong Dong, Jon Maloy,
David S. Miller, Sasha Levin
From: Menglong Dong <dong.menglong@zte.com.cn>
[ Upstream commit 0c6de0c943dbb42831bf7502eb5c007f71e752d2 ]
FB_MTU is used in 'tipc_msg_build()' to alloc smaller skb when memory
allocation fails, which can avoid unnecessary sending failures.
The value of FB_MTU now is 3744, and the data size will be:
(3744 + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + \
SKB_DATA_ALIGN(BUF_HEADROOM + BUF_TAILROOM + 3))
which is larger than one page(4096), and two pages will be allocated.
To avoid it, replace '3744' with a calculation:
(PAGE_SIZE - SKB_DATA_ALIGN(BUF_OVERHEAD) - \
SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
What's more, alloc_skb_fclone() will call SKB_DATA_ALIGN for data size,
and it's not necessary to make alignment for buf_size in
tipc_buf_acquire(). So, just remove it.
Fixes: 4c94cc2d3d57 ("tipc: fall back to smaller MTU if allocation of local send skb fails")
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/tipc/bcast.c | 2 +-
net/tipc/msg.c | 17 ++++++++---------
net/tipc/msg.h | 3 ++-
3 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index d4beca895992..593846d25214 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -699,7 +699,7 @@ int tipc_bcast_init(struct net *net)
spin_lock_init(&tipc_net(net)->bclock);
if (!tipc_link_bc_create(net, 0, 0, NULL,
- FB_MTU,
+ one_page_mtu,
BCLINK_WIN_DEFAULT,
BCLINK_WIN_DEFAULT,
0,
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index d0fc5fadbc68..b7943da9d095 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -44,12 +44,15 @@
#define MAX_FORWARD_SIZE 1024
#ifdef CONFIG_TIPC_CRYPTO
#define BUF_HEADROOM ALIGN(((LL_MAX_HEADER + 48) + EHDR_MAX_SIZE), 16)
-#define BUF_TAILROOM (TIPC_AES_GCM_TAG_SIZE)
+#define BUF_OVERHEAD (BUF_HEADROOM + TIPC_AES_GCM_TAG_SIZE)
#else
#define BUF_HEADROOM (LL_MAX_HEADER + 48)
-#define BUF_TAILROOM 16
+#define BUF_OVERHEAD BUF_HEADROOM
#endif
+const int one_page_mtu = PAGE_SIZE - SKB_DATA_ALIGN(BUF_OVERHEAD) -
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
static unsigned int align(unsigned int i)
{
return (i + 3) & ~3u;
@@ -69,13 +72,8 @@ static unsigned int align(unsigned int i)
struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp)
{
struct sk_buff *skb;
-#ifdef CONFIG_TIPC_CRYPTO
- unsigned int buf_size = (BUF_HEADROOM + size + BUF_TAILROOM + 3) & ~3u;
-#else
- unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;
-#endif
- skb = alloc_skb_fclone(buf_size, gfp);
+ skb = alloc_skb_fclone(BUF_OVERHEAD + size, gfp);
if (skb) {
skb_reserve(skb, BUF_HEADROOM);
skb_put(skb, size);
@@ -395,7 +393,8 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
if (unlikely(!skb)) {
if (pktmax != MAX_MSG_SIZE)
return -ENOMEM;
- rc = tipc_msg_build(mhdr, m, offset, dsz, FB_MTU, list);
+ rc = tipc_msg_build(mhdr, m, offset, dsz,
+ one_page_mtu, list);
if (rc != dsz)
return rc;
if (tipc_msg_assemble(list))
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 5d64596ba987..64ae4c4c44f8 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -99,9 +99,10 @@ struct plist;
#define MAX_H_SIZE 60 /* Largest possible TIPC header size */
#define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE)
-#define FB_MTU 3744
#define TIPC_MEDIA_INFO_OFFSET 5
+extern const int one_page_mtu;
+
struct tipc_skb_cb {
union {
struct {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 516/700] RDMA/mlx5: Dont access NULL-cleared mpi pointer
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (514 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 515/700] net: tipc: fix FB_MTU eat two pages Greg Kroah-Hartman
@ 2021-07-12 6:09 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 517/700] RDMA/core: Always release restrack object Greg Kroah-Hartman
` (189 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:09 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Itay Aveksis, Maor Gottlieb,
Leon Romanovsky, Jason Gunthorpe, Sasha Levin
From: Leon Romanovsky <leonro@nvidia.com>
[ Upstream commit 4a754d7637026b42b0c9ba5787ad5ee3bc2ff77f ]
The "dev->port[i].mp.mpi" is set to NULL during mlx5_ib_unbind_slave_port()
execution, however that field is needed to add device to unaffiliated list.
Such flow causes to the following kernel panic while unloading mlx5_ib
module in multi-port mode, hence the device should be added to the list
prior to unbind call.
RPC: Unregistered rdma transport module.
RPC: Unregistered rdma backchannel transport module.
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] SMP NOPTI
CPU: 4 PID: 1904 Comm: modprobe Not tainted 5.13.0-rc7_for_upstream_min_debug_2021_06_24_12_08 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:mlx5_ib_cleanup_multiport_master+0x18b/0x2d0 [mlx5_ib]
Code: 00 04 0f 85 c4 00 00 00 48 89 df e8 ef fa ff ff 48 8b 83 40 0d 00 00 48 8b 15 b9 e8 05 00 4a 8b 44 28 20 48 89 05 ad e8 05 00 <48> c7 00 d0 57 c5 a0 48 89 50 08 48 89 02 39 ab 88 0a 00 00 0f 86
RSP: 0018:ffff888116ee3df8 EFLAGS: 00010296
RAX: 0000000000000000 RBX: ffff8881154f6000 RCX: 0000000000000080
RDX: ffffffffa0c557d0 RSI: ffff88810b69d200 RDI: 000000000002d8a0
RBP: 0000000000000002 R08: ffff888110780408 R09: 0000000000000000
R10: ffff88812452e1c0 R11: fffffffffff7e028 R12: 0000000000000000
R13: 0000000000000080 R14: ffff888102c58000 R15: 0000000000000000
FS: 00007f884393a740(0000) GS:ffff8882f5a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001249f6004 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mlx5_ib_stage_init_cleanup+0x16/0xd0 [mlx5_ib]
__mlx5_ib_remove+0x33/0x90 [mlx5_ib]
mlx5r_remove+0x22/0x30 [mlx5_ib]
auxiliary_bus_remove+0x18/0x30
__device_release_driver+0x177/0x220
driver_detach+0xc4/0x100
bus_remove_driver+0x58/0xd0
auxiliary_driver_unregister+0x12/0x20
mlx5_ib_cleanup+0x13/0x897 [mlx5_ib]
__x64_sys_delete_module+0x154/0x230
? exit_to_user_mode_prepare+0x104/0x140
do_syscall_64+0x3f/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8842e095c7
Code: 73 01 c3 48 8b 0d d9 48 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 48 2c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc68f6e758 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
RAX: ffffffffffffffda RBX: 00005638207929c0 RCX: 00007f8842e095c7
RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000563820792a28
RBP: 00005638207929c0 R08: 00007ffc68f6d701 R09: 0000000000000000
R10: 00007f8842e82880 R11: 0000000000000206 R12: 0000563820792a28
R13: 0000000000000001 R14: 0000563820792a28 R15: 00007ffc68f6fb40
Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter overlay rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_ipoib ib_cm ib_umad mlx5_ib(-) mlx4_ib ib_uverbs ib_core mlx4_en mlx4_core mlx5_core ptp pps_core [last unloaded: rpcrdma]
CR2: 0000000000000000
---[ end trace a0bb7e20804e9e9b ]---
Fixes: 7ce6095e3bff ("RDMA/mlx5: Don't add slave port to unaffiliated list")
Link: https://lore.kernel.org/r/899ac1b33a995be5ec0e16a4765c4e43c2b1ba5b.1624956444.git.leonro@nvidia.com
Reviewed-by: Itay Aveksis <itayav@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/mlx5/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 21b230096cc1..fc531a506912 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3539,9 +3539,9 @@ static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev)
dev->port[i].mp.mpi = NULL;
} else {
mlx5_ib_dbg(dev, "unbinding port_num: %d\n", i + 1);
- mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
list_add_tail(&dev->port[i].mp.mpi->list,
&mlx5_ib_unaffiliated_port_list);
+ mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
}
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 517/700] RDMA/core: Always release restrack object
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (515 preceding siblings ...)
2021-07-12 6:09 ` [PATCH 5.12 516/700] RDMA/mlx5: Dont access NULL-cleared mpi pointer Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 518/700] MIPS: Fix PKMAP with 32-bit MIPS huge page support Greg Kroah-Hartman
` (188 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Leon Romanovsky,
Jason Gunthorpe, Sasha Levin
From: Leon Romanovsky <leonro@nvidia.com>
[ Upstream commit 3d8287544223a3d2f37981c1f9ffd94d0b5e9ffc ]
Change location of rdma_restrack_del() to fix the bug where
task_struct was acquired but not released, causing to resource leak.
ucma_create_id() {
ucma_alloc_ctx();
rdma_create_user_id() {
rdma_restrack_new();
rdma_restrack_set_name() {
rdma_restrack_attach_task.part.0(); <--- task_struct was gotten
}
}
ucma_destroy_private_ctx() {
ucma_put_ctx();
rdma_destroy_id() {
_destroy_id() <--- id_priv was freed
}
}
}
Fixes: 889d916b6f8a ("RDMA/core: Don't access cm_id after its destruction")
Link: https://lore.kernel.org/r/073ec27acb943ca8b6961663c47c5abe78a5c8cc.1624948948.git.leonro@nvidia.com
Reported-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/core/cma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 68bbcecb0a6a..bb46f794f324 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1856,6 +1856,7 @@ static void _destroy_id(struct rdma_id_private *id_priv,
{
cma_cancel_operation(id_priv, state);
+ rdma_restrack_del(&id_priv->res);
if (id_priv->cma_dev) {
if (rdma_cap_ib_cm(id_priv->id.device, 1)) {
if (id_priv->cm_id.ib)
@@ -1865,7 +1866,6 @@ static void _destroy_id(struct rdma_id_private *id_priv,
iw_destroy_cm_id(id_priv->cm_id.iw);
}
cma_leave_mc_groups(id_priv);
- rdma_restrack_del(&id_priv->res);
cma_release_dev(id_priv);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 518/700] MIPS: Fix PKMAP with 32-bit MIPS huge page support
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (516 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 517/700] RDMA/core: Always release restrack object Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 519/700] staging: fbtft: Rectify GPIO handling Greg Kroah-Hartman
` (187 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Wei Li, Thomas Bogendoerfer, Sasha Levin
From: Wei Li <liwei391@huawei.com>
[ Upstream commit cf02ce742f09188272bcc8b0e62d789eb671fc4c ]
When 32-bit MIPS huge page support is enabled, we halve the number of
pointers a PTE page holds, making its last half go to waste.
Correspondingly, we should halve the number of kmap entries, as we just
initialized only a single pte table for that in pagetable_init().
Fixes: 35476311e529 ("MIPS: Add partial 32-bit huge page support")
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/mips/include/asm/highmem.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 292d0425717f..92a380210017 100644
--- a/arch/mips/include/asm/highmem.h
+++ b/arch/mips/include/asm/highmem.h
@@ -36,7 +36,7 @@ extern pte_t *pkmap_page_table;
* easily, subsequent pte tables have to be allocated in one physical
* chunk of RAM.
*/
-#ifdef CONFIG_PHYS_ADDR_T_64BIT
+#if defined(CONFIG_PHYS_ADDR_T_64BIT) || defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
#define LAST_PKMAP 512
#else
#define LAST_PKMAP 1024
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 519/700] staging: fbtft: Rectify GPIO handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (517 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 518/700] MIPS: Fix PKMAP with 32-bit MIPS huge page support Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 520/700] staging: fbtft: Dont spam logs when probe is deferred Greg Kroah-Hartman
` (186 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Sebastian Götte,
Nishad Kamdar, Phil Reid, Andy Shevchenko, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit ec03c2104365ead0a33627c05e685093eed3eaef ]
The infamous commit c440eee1a7a1 ("Staging: staging: fbtft: Switch to
the GPIO descriptor interface") broke GPIO handling completely.
It has already four commits to rectify and it seems not enough.
In order to fix the mess here we:
1) Set default to "inactive" for all requested pins
2) Fix CS#, RD#, and WR# pins polarity since it's active low
and GPIO descriptor interface takes it into consideration
from the Device Tree or ACPI
3) Consolidate chip activation (CS# assertion) under default
->reset() callback
To summarize the expectations about polarity for GPIOs:
RD# Low
WR# Low
CS# Low
RESET# Low
DC or RS High
RW High
Data 0 .. 15 High
See also Adafruit learning course [1] for the example of the schematics.
While at it, drop unneeded NULL checks, since GPIO API is tolerant to that.
[1]: https://learn.adafruit.com/adafruit-2-8-and-3-2-color-tft-touchscreen-breakout-v2/downloads
Fixes: 92e3e884887c ("Staging: fbtft: Fix GPIO handling")
Fixes: b918d1c27066 ("Staging: fbtft: Fix reset assertion when using gpio descriptor")
Fixes: dbc4f989c878 ("Staging: fbtft: Fix probing of gpio descriptor")
Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Cc: Jan Sebastian Götte <linux@jaseg.net>
Cc: Nishad Kamdar <nishadkamdar@gmail.com>
Reviewed-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210503172114.27891-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/fbtft/fb_agm1264k-fl.c | 20 ++++++++++----------
drivers/staging/fbtft/fb_bd663474.c | 4 ----
drivers/staging/fbtft/fb_ili9163.c | 4 ----
drivers/staging/fbtft/fb_ili9320.c | 1 -
drivers/staging/fbtft/fb_ili9325.c | 4 ----
drivers/staging/fbtft/fb_ili9340.c | 1 -
drivers/staging/fbtft/fb_s6d1121.c | 4 ----
drivers/staging/fbtft/fb_sh1106.c | 1 -
drivers/staging/fbtft/fb_ssd1289.c | 4 ----
drivers/staging/fbtft/fb_ssd1325.c | 2 --
drivers/staging/fbtft/fb_ssd1331.c | 6 ++----
drivers/staging/fbtft/fb_ssd1351.c | 1 -
drivers/staging/fbtft/fb_upd161704.c | 4 ----
drivers/staging/fbtft/fb_watterott.c | 1 -
drivers/staging/fbtft/fbtft-bus.c | 3 +--
drivers/staging/fbtft/fbtft-core.c | 13 ++++++-------
drivers/staging/fbtft/fbtft-io.c | 12 ++++++------
17 files changed, 25 insertions(+), 60 deletions(-)
diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index eeeeec97ad27..b545c2ca80a4 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -84,9 +84,9 @@ static void reset(struct fbtft_par *par)
dev_dbg(par->info->device, "%s()\n", __func__);
- gpiod_set_value(par->gpio.reset, 0);
- udelay(20);
gpiod_set_value(par->gpio.reset, 1);
+ udelay(20);
+ gpiod_set_value(par->gpio.reset, 0);
mdelay(120);
}
@@ -194,12 +194,12 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
/* select chip */
if (*buf) {
/* cs1 */
- gpiod_set_value(par->CS0, 1);
- gpiod_set_value(par->CS1, 0);
- } else {
- /* cs0 */
gpiod_set_value(par->CS0, 0);
gpiod_set_value(par->CS1, 1);
+ } else {
+ /* cs0 */
+ gpiod_set_value(par->CS0, 1);
+ gpiod_set_value(par->CS1, 0);
}
gpiod_set_value(par->RS, 0); /* RS->0 (command mode) */
@@ -397,8 +397,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
}
kfree(convert_buf);
- gpiod_set_value(par->CS0, 1);
- gpiod_set_value(par->CS1, 1);
+ gpiod_set_value(par->CS0, 0);
+ gpiod_set_value(par->CS1, 0);
return ret;
}
@@ -419,10 +419,10 @@ static int write(struct fbtft_par *par, void *buf, size_t len)
for (i = 0; i < 8; ++i)
gpiod_set_value(par->gpio.db[i], data & (1 << i));
/* set E */
- gpiod_set_value(par->EPIN, 1);
+ gpiod_set_value(par->EPIN, 0);
udelay(5);
/* unset E - write */
- gpiod_set_value(par->EPIN, 0);
+ gpiod_set_value(par->EPIN, 1);
udelay(1);
}
diff --git a/drivers/staging/fbtft/fb_bd663474.c b/drivers/staging/fbtft/fb_bd663474.c
index e2c7646588f8..1629c2c440a9 100644
--- a/drivers/staging/fbtft/fb_bd663474.c
+++ b/drivers/staging/fbtft/fb_bd663474.c
@@ -12,7 +12,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "fbtft.h"
@@ -24,9 +23,6 @@
static int init_display(struct fbtft_par *par)
{
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
-
par->fbtftops.reset(par);
/* Initialization sequence from Lib_UTFT */
diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c
index 05648c3ffe47..6582a2c90aaf 100644
--- a/drivers/staging/fbtft/fb_ili9163.c
+++ b/drivers/staging/fbtft/fb_ili9163.c
@@ -11,7 +11,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <video/mipi_display.h>
@@ -77,9 +76,6 @@ static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
-
write_reg(par, MIPI_DCS_SOFT_RESET); /* software reset */
mdelay(500);
write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE); /* exit sleep */
diff --git a/drivers/staging/fbtft/fb_ili9320.c b/drivers/staging/fbtft/fb_ili9320.c
index f2e72d14431d..a8f4c618b754 100644
--- a/drivers/staging/fbtft/fb_ili9320.c
+++ b/drivers/staging/fbtft/fb_ili9320.c
@@ -8,7 +8,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/spi/spi.h>
#include <linux/delay.h>
diff --git a/drivers/staging/fbtft/fb_ili9325.c b/drivers/staging/fbtft/fb_ili9325.c
index c9aa4cb43123..16d3b17ca279 100644
--- a/drivers/staging/fbtft/fb_ili9325.c
+++ b/drivers/staging/fbtft/fb_ili9325.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "fbtft.h"
@@ -85,9 +84,6 @@ static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
-
bt &= 0x07;
vc &= 0x07;
vrh &= 0x0f;
diff --git a/drivers/staging/fbtft/fb_ili9340.c b/drivers/staging/fbtft/fb_ili9340.c
index 415183c7054a..704236bcaf3f 100644
--- a/drivers/staging/fbtft/fb_ili9340.c
+++ b/drivers/staging/fbtft/fb_ili9340.c
@@ -8,7 +8,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <video/mipi_display.h>
diff --git a/drivers/staging/fbtft/fb_s6d1121.c b/drivers/staging/fbtft/fb_s6d1121.c
index 8c7de3290343..62f27172f844 100644
--- a/drivers/staging/fbtft/fb_s6d1121.c
+++ b/drivers/staging/fbtft/fb_s6d1121.c
@@ -12,7 +12,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "fbtft.h"
@@ -29,9 +28,6 @@ static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
-
/* Initialization sequence from Lib_UTFT */
write_reg(par, 0x0011, 0x2004);
diff --git a/drivers/staging/fbtft/fb_sh1106.c b/drivers/staging/fbtft/fb_sh1106.c
index 6f7249493ea3..7b9ab39e1c1a 100644
--- a/drivers/staging/fbtft/fb_sh1106.c
+++ b/drivers/staging/fbtft/fb_sh1106.c
@@ -9,7 +9,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "fbtft.h"
diff --git a/drivers/staging/fbtft/fb_ssd1289.c b/drivers/staging/fbtft/fb_ssd1289.c
index 7a3fe022cc69..f27bab38b3ec 100644
--- a/drivers/staging/fbtft/fb_ssd1289.c
+++ b/drivers/staging/fbtft/fb_ssd1289.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include "fbtft.h"
@@ -28,9 +27,6 @@ static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
-
write_reg(par, 0x00, 0x0001);
write_reg(par, 0x03, 0xA8A4);
write_reg(par, 0x0C, 0x0000);
diff --git a/drivers/staging/fbtft/fb_ssd1325.c b/drivers/staging/fbtft/fb_ssd1325.c
index 8a3140d41d8b..796a2ac3e194 100644
--- a/drivers/staging/fbtft/fb_ssd1325.c
+++ b/drivers/staging/fbtft/fb_ssd1325.c
@@ -35,8 +35,6 @@ static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
- gpiod_set_value(par->gpio.cs, 0);
-
write_reg(par, 0xb3);
write_reg(par, 0xf0);
write_reg(par, 0xae);
diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c
index 37622c9462aa..ec5eced7f8cb 100644
--- a/drivers/staging/fbtft/fb_ssd1331.c
+++ b/drivers/staging/fbtft/fb_ssd1331.c
@@ -81,8 +81,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
va_start(args, len);
*buf = (u8)va_arg(args, unsigned int);
- if (par->gpio.dc)
- gpiod_set_value(par->gpio.dc, 0);
+ gpiod_set_value(par->gpio.dc, 0);
ret = par->fbtftops.write(par, par->buf, sizeof(u8));
if (ret < 0) {
va_end(args);
@@ -104,8 +103,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
return;
}
}
- if (par->gpio.dc)
- gpiod_set_value(par->gpio.dc, 1);
+ gpiod_set_value(par->gpio.dc, 1);
va_end(args);
}
diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c
index 900b28d826b2..cf263a58a148 100644
--- a/drivers/staging/fbtft/fb_ssd1351.c
+++ b/drivers/staging/fbtft/fb_ssd1351.c
@@ -2,7 +2,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/spi/spi.h>
#include <linux/delay.h>
diff --git a/drivers/staging/fbtft/fb_upd161704.c b/drivers/staging/fbtft/fb_upd161704.c
index c77832ae5e5b..c680160d6380 100644
--- a/drivers/staging/fbtft/fb_upd161704.c
+++ b/drivers/staging/fbtft/fb_upd161704.c
@@ -12,7 +12,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "fbtft.h"
@@ -26,9 +25,6 @@ static int init_display(struct fbtft_par *par)
{
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
-
/* Initialization sequence from Lib_UTFT */
/* register reset */
diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
index 76b25df376b8..a57e1f4feef3 100644
--- a/drivers/staging/fbtft/fb_watterott.c
+++ b/drivers/staging/fbtft/fb_watterott.c
@@ -8,7 +8,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include "fbtft.h"
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index 63c65dd67b17..3d422bc11641 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -135,8 +135,7 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
remain = len / 2;
vmem16 = (u16 *)(par->info->screen_buffer + offset);
- if (par->gpio.dc)
- gpiod_set_value(par->gpio.dc, 1);
+ gpiod_set_value(par->gpio.dc, 1);
/* non buffered write */
if (!par->txbuf.buf)
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 4f362dad4436..67c3b1975a4d 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -38,8 +38,7 @@ int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc)
{
int ret;
- if (par->gpio.dc)
- gpiod_set_value(par->gpio.dc, dc);
+ gpiod_set_value(par->gpio.dc, dc);
ret = par->fbtftops.write(par, buf, len);
if (ret < 0)
@@ -79,7 +78,7 @@ static int fbtft_request_one_gpio(struct fbtft_par *par,
int ret = 0;
*gpiop = devm_gpiod_get_index_optional(dev, name, index,
- GPIOD_OUT_HIGH);
+ GPIOD_OUT_LOW);
if (IS_ERR(*gpiop)) {
ret = PTR_ERR(*gpiop);
dev_err(dev,
@@ -226,11 +225,15 @@ static void fbtft_reset(struct fbtft_par *par)
{
if (!par->gpio.reset)
return;
+
fbtft_par_dbg(DEBUG_RESET, par, "%s()\n", __func__);
+
gpiod_set_value_cansleep(par->gpio.reset, 1);
usleep_range(20, 40);
gpiod_set_value_cansleep(par->gpio.reset, 0);
msleep(120);
+
+ gpiod_set_value_cansleep(par->gpio.cs, 1); /* Activate chip */
}
static void fbtft_update_display(struct fbtft_par *par, unsigned int start_line,
@@ -922,8 +925,6 @@ static int fbtft_init_display_from_property(struct fbtft_par *par)
goto out_free;
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
index = -1;
val = values[++index];
@@ -1018,8 +1019,6 @@ int fbtft_init_display(struct fbtft_par *par)
}
par->fbtftops.reset(par);
- if (par->gpio.cs)
- gpiod_set_value(par->gpio.cs, 0); /* Activate chip */
i = 0;
while (i < FBTFT_MAX_INIT_SEQUENCE) {
diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c
index 0863d257d762..de1904a443c2 100644
--- a/drivers/staging/fbtft/fbtft-io.c
+++ b/drivers/staging/fbtft/fbtft-io.c
@@ -142,12 +142,12 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len)
data = *(u8 *)buf;
/* Start writing by pulling down /WR */
- gpiod_set_value(par->gpio.wr, 0);
+ gpiod_set_value(par->gpio.wr, 1);
/* Set data */
#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
if (data == prev_data) {
- gpiod_set_value(par->gpio.wr, 0); /* used as delay */
+ gpiod_set_value(par->gpio.wr, 1); /* used as delay */
} else {
for (i = 0; i < 8; i++) {
if ((data & 1) != (prev_data & 1))
@@ -165,7 +165,7 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len)
#endif
/* Pullup /WR */
- gpiod_set_value(par->gpio.wr, 1);
+ gpiod_set_value(par->gpio.wr, 0);
#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
prev_data = *(u8 *)buf;
@@ -192,12 +192,12 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len)
data = *(u16 *)buf;
/* Start writing by pulling down /WR */
- gpiod_set_value(par->gpio.wr, 0);
+ gpiod_set_value(par->gpio.wr, 1);
/* Set data */
#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
if (data == prev_data) {
- gpiod_set_value(par->gpio.wr, 0); /* used as delay */
+ gpiod_set_value(par->gpio.wr, 1); /* used as delay */
} else {
for (i = 0; i < 16; i++) {
if ((data & 1) != (prev_data & 1))
@@ -215,7 +215,7 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len)
#endif
/* Pullup /WR */
- gpiod_set_value(par->gpio.wr, 1);
+ gpiod_set_value(par->gpio.wr, 0);
#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
prev_data = *(u16 *)buf;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 520/700] staging: fbtft: Dont spam logs when probe is deferred
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (518 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 519/700] staging: fbtft: Rectify GPIO handling Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 521/700] ASoC: rt5682: Disable irq on shutdown Greg Kroah-Hartman
` (185 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nishad Kamdar, Andy Shevchenko, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit 37667f6e57712cef5652fa67f1cbd1299e204d94 ]
When requesting GPIO line the probe can be deferred.
In such case don't spam logs with an error message.
This can be achieved by switching to dev_err_probe().
Fixes: c440eee1a7a1 ("Staging: fbtft: Switch to the gpio descriptor interface")
Cc: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210503172114.27891-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/fbtft/fbtft-core.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 67c3b1975a4d..3723269890d5 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -75,20 +75,16 @@ static int fbtft_request_one_gpio(struct fbtft_par *par,
struct gpio_desc **gpiop)
{
struct device *dev = par->info->device;
- int ret = 0;
*gpiop = devm_gpiod_get_index_optional(dev, name, index,
GPIOD_OUT_LOW);
- if (IS_ERR(*gpiop)) {
- ret = PTR_ERR(*gpiop);
- dev_err(dev,
- "Failed to request %s GPIO: %d\n", name, ret);
- return ret;
- }
+ if (IS_ERR(*gpiop))
+ return dev_err_probe(dev, PTR_ERR(*gpiop), "Failed to request %s GPIO\n", name);
+
fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, "%s: '%s' GPIO\n",
__func__, name);
- return ret;
+ return 0;
}
static int fbtft_request_gpios(struct fbtft_par *par)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 521/700] ASoC: rt5682: Disable irq on shutdown
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (519 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 520/700] staging: fbtft: Dont spam logs when probe is deferred Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 522/700] rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread() Greg Kroah-Hartman
` (184 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jairaj Arava, Sathyanarayana Nujella,
Pierre-Louis Bossart, Shuming Fan, Ranjani Sridharan,
Stephen Boyd, Mark Brown, Sasha Levin
From: Stephen Boyd <swboyd@chromium.org>
[ Upstream commit 47bcb1c7108363418cd578283333d72e310dfeaa ]
We cancel the work queues, and reset the device on shutdown, but the irq
isn't disabled so the work queues could be queued again. Let's disable
the irq during shutdown so that we don't have to worry about this device
trying to do anything anymore. This fixes a problem seen where the i2c
bus is shutdown at reboot but this device irq still comes in and tries
to make another i2c transaction when the bus doesn't work.
Cc: Jairaj Arava <jairaj.arava@intel.com>
Cc: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Cc: Shuming Fan <shumingf@realtek.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Fixes: 45a2702ce109 ("ASoC: rt5682: Fix panic in rt5682_jack_detect_handler happening during system shutdown")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210508075151.1626903-1-swboyd@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5682-i2c.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/codecs/rt5682-i2c.c b/sound/soc/codecs/rt5682-i2c.c
index 93c1603b42f1..8265b537ff4f 100644
--- a/sound/soc/codecs/rt5682-i2c.c
+++ b/sound/soc/codecs/rt5682-i2c.c
@@ -273,6 +273,7 @@ static void rt5682_i2c_shutdown(struct i2c_client *client)
{
struct rt5682_priv *rt5682 = i2c_get_clientdata(client);
+ disable_irq(client->irq);
cancel_delayed_work_sync(&rt5682->jack_detect_work);
cancel_delayed_work_sync(&rt5682->jd_check_work);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 522/700] rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (520 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 521/700] ASoC: rt5682: Disable irq on shutdown Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 523/700] serial: fsl_lpuart: dont modify arbitrary data on lpuart32 Greg Kroah-Hartman
` (183 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Paul E. McKenney, Sasha Levin
From: Paul E. McKenney <paulmck@kernel.org>
[ Upstream commit 8e4b1d2bc198e34b48fc7cc3a3c5a2fcb269e271 ]
Currently, rcu_spawn_core_kthreads() is invoked via an early_initcall(),
which works, except that rcu_spawn_gp_kthread() is also invoked via an
early_initcall() and rcu_spawn_core_kthreads() relies on adjustments to
kthread_prio that are carried out by rcu_spawn_gp_kthread(). There is
no guaranttee of ordering among early_initcall() handlers, and thus no
guarantee that kthread_prio will be properly checked and range-limited
at the time that rcu_spawn_core_kthreads() needs it.
In most cases, this bug is harmless. After all, the only reason that
rcu_spawn_gp_kthread() adjusts the value of kthread_prio is if the user
specified a nonsensical value for this boot parameter, which experience
indicates is rare.
Nevertheless, a bug is a bug. This commit therefore causes the
rcu_spawn_core_kthreads() function to be invoked directly from
rcu_spawn_gp_kthread() after any needed adjustments to kthread_prio have
been carried out.
Fixes: 48d07c04b4cc ("rcu: Enable elimination of Tree-RCU softirq processing")
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 7356764e49a0..a274622ed6fa 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2911,7 +2911,6 @@ static int __init rcu_spawn_core_kthreads(void)
"%s: Could not start rcuc kthread, OOM is now expected behavior\n", __func__);
return 0;
}
-early_initcall(rcu_spawn_core_kthreads);
/*
* Handle any core-RCU processing required by a call_rcu() invocation.
@@ -4392,6 +4391,7 @@ static int __init rcu_spawn_gp_kthread(void)
wake_up_process(t);
rcu_spawn_nocb_kthreads();
rcu_spawn_boost_kthreads();
+ rcu_spawn_core_kthreads();
return 0;
}
early_initcall(rcu_spawn_gp_kthread);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 523/700] serial: fsl_lpuart: dont modify arbitrary data on lpuart32
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (521 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 522/700] rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 524/700] serial: fsl_lpuart: remove RTSCTS handling from get_mctrl() Greg Kroah-Hartman
` (182 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Michael Walle, Sasha Levin
From: Michael Walle <michael@walle.cc>
[ Upstream commit ccf08fd1204bcb5311cc10aea037c71c6e74720a ]
lpuart_rx_dma_startup() is used for both the 8 bit and the 32 bit
version of the LPUART. Modify the UARTCR only for the 8 bit version.
Fixes: f4eef224a09f ("serial: fsl_lpuart: add sysrq support when using dma")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210512141255.18277-2-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/fsl_lpuart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 794035041744..fbf2e4d2d22b 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1625,7 +1625,7 @@ static void lpuart_rx_dma_startup(struct lpuart_port *sport)
sport->lpuart_dma_rx_use = true;
rx_dma_timer_init(sport);
- if (sport->port.has_sysrq) {
+ if (sport->port.has_sysrq && !lpuart_is_32(sport)) {
cr3 = readb(sport->port.membase + UARTCR3);
cr3 |= UARTCR3_FEIE;
writeb(cr3, sport->port.membase + UARTCR3);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 524/700] serial: fsl_lpuart: remove RTSCTS handling from get_mctrl()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (522 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 523/700] serial: fsl_lpuart: dont modify arbitrary data on lpuart32 Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 525/700] serial: 8250_omap: fix a timeout loop condition Greg Kroah-Hartman
` (181 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Michael Walle, Sasha Levin
From: Michael Walle <michael@walle.cc>
[ Upstream commit e60c2991f18bf221fa9908ff10cb24eaedaa9bae ]
The wrong code in set_mctrl() was already removed in commit 2b30efe2e88a
("tty: serial: lpuart: Remove unnecessary code from set_mctrl"), but the
code in get_mctrl() wasn't removed. It will not return the state of the
RTS or CTS line but whether automatic flow control is enabled, which is
wrong for the get_mctrl(). Thus remove it.
Fixes: 2b30efe2e88a ("tty: serial: lpuart: Remove unnecessary code from set_mctrl")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210512141255.18277-7-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/fsl_lpuart.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index fbf2e4d2d22b..9c78e43e669d 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1408,17 +1408,7 @@ static unsigned int lpuart_get_mctrl(struct uart_port *port)
static unsigned int lpuart32_get_mctrl(struct uart_port *port)
{
- unsigned int temp = 0;
- unsigned long reg;
-
- reg = lpuart32_read(port, UARTMODIR);
- if (reg & UARTMODIR_TXCTSE)
- temp |= TIOCM_CTS;
-
- if (reg & UARTMODIR_RXRTSE)
- temp |= TIOCM_RTS;
-
- return temp;
+ return 0;
}
static void lpuart_set_mctrl(struct uart_port *port, unsigned int mctrl)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 525/700] serial: 8250_omap: fix a timeout loop condition
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (523 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 524/700] serial: fsl_lpuart: remove RTSCTS handling from get_mctrl() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 526/700] tty: nozomi: Fix a resource leak in an error handling function Greg Kroah-Hartman
` (180 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Sverdlin, Dan Carpenter,
Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit d7e325aaa8c3593b5a572b583ecad79e95f32e7f ]
This loop ends on -1 so the error message will never be printed.
Fixes: 4bcf59a5dea0 ("serial: 8250: 8250_omap: Account for data in flight during DMA teardown")
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YIpd+kOpXKMpEXPf@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/8250/8250_omap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 23e0decde33e..3161d3655670 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -813,7 +813,7 @@ static void __dma_rx_do_complete(struct uart_8250_port *p)
poll_count--)
cpu_relax();
- if (!poll_count)
+ if (poll_count == -1)
dev_err(p->port.dev, "teardown incomplete\n");
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 526/700] tty: nozomi: Fix a resource leak in an error handling function
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (524 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 525/700] serial: 8250_omap: fix a timeout loop condition Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 527/700] phy: ralink: phy-mt7621-pci: properly print pointer address Greg Kroah-Hartman
` (179 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jiri Slaby, Christophe JAILLET, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 31a9a318255960d32ae183e95d0999daf2418608 ]
A 'request_irq()' call is not balanced by a corresponding 'free_irq()' in
the error handling path, as already done in the remove function.
Add it.
Fixes: 9842c38e9176 ("kfifo: fix warn_unused_result")
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/4f0d2b3038e82f081d370ccb0cade3ad88463fe7.1620580838.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/nozomi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index 861e95043191..0b10c2da4364 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -1433,6 +1433,7 @@ err_free_tty:
tty_unregister_device(ntty_driver, dc->index_start + i);
tty_port_destroy(&dc->port[i].port);
}
+ free_irq(pdev->irq, dc);
err_free_kfifo:
for (i = 0; i < MAX_PORT; i++)
kfifo_free(&dc->port[i].fifo_ul);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 527/700] phy: ralink: phy-mt7621-pci: properly print pointer address
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (525 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 526/700] tty: nozomi: Fix a resource leak in an error handling function Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 528/700] mwifiex: re-fix for unaligned accesses Greg Kroah-Hartman
` (178 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot,
Sergio Paracuellos, Vinod Koul, Sasha Levin
From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
[ Upstream commit 652a6a2e3824ce2ebf79a2d5326940d05c4db036 ]
The way of printing the pointer address for the 'port_base'
address got into compile warnings on some architectures
[-Wpointer-to-int-cast]. Instead of use '%08x' and cast
to an 'unsigned int' just make use of '%px' and avoid the
cast. To avoid not really needed driver verbosity on normal
behaviour change also from 'dev_info' to 'dev_dbg'.
Fixes: d87da32372a0 ("phy: ralink: Add PHY driver for MT7621 PCIe PHY")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210508070930.5290-7-sergio.paracuellos@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/phy/ralink/phy-mt7621-pci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/phy/ralink/phy-mt7621-pci.c b/drivers/phy/ralink/phy-mt7621-pci.c
index 753cb5bab930..88e82ab81b61 100644
--- a/drivers/phy/ralink/phy-mt7621-pci.c
+++ b/drivers/phy/ralink/phy-mt7621-pci.c
@@ -272,8 +272,8 @@ static struct phy *mt7621_pcie_phy_of_xlate(struct device *dev,
mt7621_phy->has_dual_port = args->args[0];
- dev_info(dev, "PHY for 0x%08x (dual port = %d)\n",
- (unsigned int)mt7621_phy->port_base, mt7621_phy->has_dual_port);
+ dev_dbg(dev, "PHY for 0x%px (dual port = %d)\n",
+ mt7621_phy->port_base, mt7621_phy->has_dual_port);
return mt7621_phy->phy;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 528/700] mwifiex: re-fix for unaligned accesses
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (526 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 527/700] phy: ralink: phy-mt7621-pci: properly print pointer address Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 529/700] iio: adis_buffer: do not return ints in irq handlers Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kalle Valo, Arnd Bergmann, Sasha Levin
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 8f4e3d48bb50765ab27ae5bebed2595b20de80a1 ]
A patch from 2017 changed some accesses to DMA memory to use
get_unaligned_le32() and similar interfaces, to avoid problems
with doing unaligned accesson uncached memory.
However, the change in the mwifiex_pcie_alloc_sleep_cookie_buf()
function ended up changing the size of the access instead,
as it operates on a pointer to u8.
Change this function back to actually access the entire 32 bits.
Note that the pointer is aligned by definition because it came
from dma_alloc_coherent().
Fixes: 92c70a958b0b ("mwifiex: fix for unaligned reads")
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/marvell/mwifiex/pcie.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 94228b316df1..46517515ba72 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -1231,7 +1231,7 @@ static int mwifiex_pcie_delete_cmdrsp_buf(struct mwifiex_adapter *adapter)
static int mwifiex_pcie_alloc_sleep_cookie_buf(struct mwifiex_adapter *adapter)
{
struct pcie_service_card *card = adapter->card;
- u32 tmp;
+ u32 *cookie;
card->sleep_cookie_vbase = dma_alloc_coherent(&card->dev->dev,
sizeof(u32),
@@ -1242,13 +1242,11 @@ static int mwifiex_pcie_alloc_sleep_cookie_buf(struct mwifiex_adapter *adapter)
"dma_alloc_coherent failed!\n");
return -ENOMEM;
}
+ cookie = (u32 *)card->sleep_cookie_vbase;
/* Init val of Sleep Cookie */
- tmp = FW_AWAKE_COOKIE;
- put_unaligned(tmp, card->sleep_cookie_vbase);
+ *cookie = FW_AWAKE_COOKIE;
- mwifiex_dbg(adapter, INFO,
- "alloc_scook: sleep cookie=0x%x\n",
- get_unaligned(card->sleep_cookie_vbase));
+ mwifiex_dbg(adapter, INFO, "alloc_scook: sleep cookie=0x%x\n", *cookie);
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 529/700] iio: adis_buffer: do not return ints in irq handlers
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (527 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 528/700] mwifiex: re-fix for unaligned accesses Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 530/700] iio: adis16400: " Greg Kroah-Hartman
` (176 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexandru Ardelean, Nuno Sa,
Jonathan Cameron, Sasha Levin
From: Nuno Sa <nuno.sa@analog.com>
[ Upstream commit d877539ad8e8fdde9af69887055fec6402be1a13 ]
On an IRQ handler we should not return normal error codes as 'irqreturn_t'
is expected.
Not necessarily stable material as the old check cannot fail, so it's a bug
we can not hit.
Fixes: ccd2b52f4ac69 ("staging:iio: Add common ADIS library")
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210422101911.135630-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/imu/adis_buffer.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
index ac354321f63a..175af154e443 100644
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -129,9 +129,6 @@ static irqreturn_t adis_trigger_handler(int irq, void *p)
struct adis *adis = iio_device_get_drvdata(indio_dev);
int ret;
- if (!adis->buffer)
- return -ENOMEM;
-
if (adis->data->has_paging) {
mutex_lock(&adis->state_lock);
if (adis->current_page != 0) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 530/700] iio: adis16400: do not return ints in irq handlers
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` (528 preceding siblings ...)
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@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 531/700] iio: adis16475: " Greg Kroah-Hartman
` (175 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexandru Ardelean, Nuno Sa,
Jonathan Cameron, Sasha Levin
From: Nuno Sa <nuno.sa@analog.com>
[ Upstream commit ab3df79782e7d8a27a58576c9b4e8c6c4879ad79 ]
On an IRQ handler we should not return normal error codes as 'irqreturn_t'
is expected.
Not necessary to apply to stable as the original check cannot fail and
as such the bug cannot actually occur.
Fixes: 5eda3550a3cc1 ("staging:iio:adis16400: Preallocate transfer message")
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210422101911.135630-3-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/imu/adis16400.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c
index 785a4ce606d8..4aff16466da0 100644
--- a/drivers/iio/imu/adis16400.c
+++ b/drivers/iio/imu/adis16400.c
@@ -647,9 +647,6 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
void *buffer;
int ret;
- if (!adis->buffer)
- return -ENOMEM;
-
if (!(st->variant->flags & ADIS16400_NO_BURST) &&
st->adis.spi->max_speed_hz > ADIS16400_SPI_BURST) {
st->adis.spi->max_speed_hz = ADIS16400_SPI_BURST;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 531/700] iio: adis16475: do not return ints in irq handlers
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` (529 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 530/700] iio: adis16400: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 532/700] iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
` (174 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexandru Ardelean, Nuno Sa,
Jonathan Cameron, Sasha Levin
From: Nuno Sa <nuno.sa@analog.com>
[ Upstream commit 00a72db718fa198da3946286dcad222399ccd4fb ]
On an IRQ handler we should not return normal error codes as 'irqreturn_t'
is expected.
This is done by jumping to the 'check_burst32' label where we return
'IRQ_HANDLED'. Note that it is fine to do the burst32 check in this
error path. If we have proper settings to apply burst32, we might just
do the setup now so that the next sample already uses it.
Fixes: fff7352bf7a3c ("iio: imu: Add support for adis16475")
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210427085454.30616-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/imu/adis16475.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/imu/adis16475.c b/drivers/iio/imu/adis16475.c
index 197d48240991..3c4e4deb8760 100644
--- a/drivers/iio/imu/adis16475.c
+++ b/drivers/iio/imu/adis16475.c
@@ -990,7 +990,7 @@ static irqreturn_t adis16475_trigger_handler(int irq, void *p)
ret = spi_sync(adis->spi, &adis->msg);
if (ret)
- return ret;
+ goto check_burst32;
adis->spi->max_speed_hz = cached_spi_speed_hz;
buffer = adis->buffer;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 532/700] iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (530 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 531/700] iio: adis16475: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 533/700] iio: accel: bma220: " Greg Kroah-Hartman
` (173 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Peter Meerwald,
Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit fc36da3131a747a9367a05caf06de19be1bcc972 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: b9a6a237ffc9 ("iio:bma180: Drop _update_scan_mode()")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-2-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/bma180.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 2a6d73cc7333..9b0018874eec 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -164,7 +164,11 @@ struct bma180_data {
int scale;
int bw;
bool pmode;
- u8 buff[16]; /* 3x 16-bit + 8-bit + padding + timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ s16 chan[4];
+ s64 timestamp __aligned(8);
+ } scan;
};
enum bma180_chan {
@@ -943,12 +947,12 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
mutex_unlock(&data->mutex);
goto err;
}
- ((s16 *)data->buff)[i++] = ret;
+ data->scan.chan[i++] = ret;
}
mutex_unlock(&data->mutex);
- iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, time_ns);
err:
iio_trigger_notify_done(indio_dev->trig);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 533/700] iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (531 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 532/700] iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 534/700] iio: accel: hid: " Greg Kroah-Hartman
` (172 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 151dbf0078da98206817ee0b87d499035479ef11 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 194dc4c71413 ("iio: accel: Add triggered buffer support for BMA220")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-3-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/bma220_spi.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c
index 3c9b0c6954e6..e8a9db1a82ad 100644
--- a/drivers/iio/accel/bma220_spi.c
+++ b/drivers/iio/accel/bma220_spi.c
@@ -63,7 +63,11 @@ static const int bma220_scale_table[][2] = {
struct bma220_data {
struct spi_device *spi_device;
struct mutex lock;
- s8 buffer[16]; /* 3x8-bit channels + 5x8 padding + 8x8 timestamp */
+ struct {
+ s8 chans[3];
+ /* Ensure timestamp is naturally aligned. */
+ s64 timestamp __aligned(8);
+ } scan;
u8 tx_buf[2] ____cacheline_aligned;
};
@@ -94,12 +98,12 @@ static irqreturn_t bma220_trigger_handler(int irq, void *p)
mutex_lock(&data->lock);
data->tx_buf[0] = BMA220_REG_ACCEL_X | BMA220_READ_MASK;
- ret = spi_write_then_read(spi, data->tx_buf, 1, data->buffer,
+ ret = spi_write_then_read(spi, data->tx_buf, 1, &data->scan.chans,
ARRAY_SIZE(bma220_channels) - 1);
if (ret < 0)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
mutex_unlock(&data->lock);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 534/700] iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (532 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 533/700] iio: accel: bma220: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 535/700] iio: accel: kxcjk-1013: " Greg Kroah-Hartman
` (171 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Srinivas Pandruvada, Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit c6559bf796ccdb3a0c79db846af96c8f7046880b ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Note this matches what was done in all the other hid sensor drivers.
This one was missed previously due to an extra level of indirection.
Found during an audit of all calls of this function.
Fixes: a96cd0f901ee ("iio: accel: hid-sensor-accel-3d: Add timestamp")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-4-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/hid-sensor-accel-3d.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index 5d63ed19e6e2..d35d039c79cb 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -28,8 +28,11 @@ struct accel_3d_state {
struct hid_sensor_hub_callbacks callbacks;
struct hid_sensor_common common_attributes;
struct hid_sensor_hub_attribute_info accel[ACCEL_3D_CHANNEL_MAX];
- /* Reserve for 3 channels + padding + timestamp */
- u32 accel_val[ACCEL_3D_CHANNEL_MAX + 3];
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ u32 accel_val[3];
+ s64 timestamp __aligned(8);
+ } scan;
int scale_pre_decml;
int scale_post_decml;
int scale_precision;
@@ -241,8 +244,8 @@ static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev,
accel_state->timestamp = iio_get_time_ns(indio_dev);
hid_sensor_push_data(indio_dev,
- accel_state->accel_val,
- sizeof(accel_state->accel_val),
+ &accel_state->scan,
+ sizeof(accel_state->scan),
accel_state->timestamp);
accel_state->timestamp = 0;
@@ -267,7 +270,7 @@ static int accel_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
case HID_USAGE_SENSOR_ACCEL_Y_AXIS:
case HID_USAGE_SENSOR_ACCEL_Z_AXIS:
offset = usage_id - HID_USAGE_SENSOR_ACCEL_X_AXIS;
- accel_state->accel_val[CHANNEL_SCAN_INDEX_X + offset] =
+ accel_state->scan.accel_val[CHANNEL_SCAN_INDEX_X + offset] =
*(u32 *)raw_data;
ret = 0;
break;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 535/700] iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (533 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 534/700] iio: accel: hid: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 536/700] iio: accel: mxc4005: Fix overread of data and alignment issue Greg Kroah-Hartman
` (170 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Srinivas Pandruvada, Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 3ab3aa2e7bd57497f9a7c6275c00dce237d2c9ba ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 1a4fbf6a9286 ("iio: accel: kxcjk1013 3-axis accelerometer driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-5-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/kxcjk-1013.c | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 2fadafc860fd..5a19b5041e28 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -133,6 +133,13 @@ enum kx_acpi_type {
ACPI_KIOX010A,
};
+enum kxcjk1013_axis {
+ AXIS_X,
+ AXIS_Y,
+ AXIS_Z,
+ AXIS_MAX
+};
+
struct kxcjk1013_data {
struct regulator_bulk_data regulators[2];
struct i2c_client *client;
@@ -140,7 +147,11 @@ struct kxcjk1013_data {
struct iio_trigger *motion_trig;
struct iio_mount_matrix orientation;
struct mutex mutex;
- s16 buffer[8];
+ /* Ensure timestamp naturally aligned */
+ struct {
+ s16 chans[AXIS_MAX];
+ s64 timestamp __aligned(8);
+ } scan;
u8 odr_bits;
u8 range;
int wake_thres;
@@ -154,13 +165,6 @@ struct kxcjk1013_data {
enum kx_acpi_type acpi_type;
};
-enum kxcjk1013_axis {
- AXIS_X,
- AXIS_Y,
- AXIS_Z,
- AXIS_MAX,
-};
-
enum kxcjk1013_mode {
STANDBY,
OPERATION,
@@ -1094,12 +1098,12 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
ret = i2c_smbus_read_i2c_block_data_or_emulated(data->client,
KXCJK1013_REG_XOUT_L,
AXIS_MAX * 2,
- (u8 *)data->buffer);
+ (u8 *)data->scan.chans);
mutex_unlock(&data->mutex);
if (ret < 0)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
data->timestamp);
err:
iio_trigger_notify_done(indio_dev->trig);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 536/700] iio: accel: mxc4005: Fix overread of data and alignment issue.
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (534 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 535/700] iio: accel: kxcjk-1013: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 537/700] iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
` (169 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit f65802284a3a337510d7f8f916c97d66c74f2e71 ]
The bulk read size is based on the size of an array that also has
space for the timestamp alongside the channels.
Fix that and also fix alignment of the buffer passed
to iio_push_to_buffers_with_timestamp.
Found during an audit of all calls to this function.
Fixes: 1ce0eda0f757 ("iio: mxc4005: add triggered buffer mode for mxc4005")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-6-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/mxc4005.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c
index 0f8fd687866d..381c6b1be5f5 100644
--- a/drivers/iio/accel/mxc4005.c
+++ b/drivers/iio/accel/mxc4005.c
@@ -56,7 +56,11 @@ struct mxc4005_data {
struct mutex mutex;
struct regmap *regmap;
struct iio_trigger *dready_trig;
- __be16 buffer[8];
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ __be16 chans[3];
+ s64 timestamp __aligned(8);
+ } scan;
bool trigger_enabled;
};
@@ -135,7 +139,7 @@ static int mxc4005_read_xyz(struct mxc4005_data *data)
int ret;
ret = regmap_bulk_read(data->regmap, MXC4005_REG_XOUT_UPPER,
- data->buffer, sizeof(data->buffer));
+ data->scan.chans, sizeof(data->scan.chans));
if (ret < 0) {
dev_err(data->dev, "failed to read axes\n");
return ret;
@@ -301,7 +305,7 @@ static irqreturn_t mxc4005_trigger_handler(int irq, void *private)
if (ret < 0)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 537/700] iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (535 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 536/700] iio: accel: mxc4005: Fix overread of data and alignment issue Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 538/700] iio: accel: stk8ba50: " Greg Kroah-Hartman
` (168 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit f40a71ffec808e7e51848f63f0c0d3c32d65081b ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 95c12bba51c3 ("iio: accel: Add buffer mode for Sensortek STK8312")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-7-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/stk8312.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c
index 3b59887a8581..7d24801e8aa7 100644
--- a/drivers/iio/accel/stk8312.c
+++ b/drivers/iio/accel/stk8312.c
@@ -103,7 +103,11 @@ struct stk8312_data {
u8 mode;
struct iio_trigger *dready_trig;
bool dready_trigger_on;
- s8 buffer[16]; /* 3x8-bit channels + 5x8 padding + 64-bit timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ s8 chans[3];
+ s64 timestamp __aligned(8);
+ } scan;
};
static IIO_CONST_ATTR(in_accel_scale_available, STK8312_SCALE_AVAIL);
@@ -438,7 +442,7 @@ static irqreturn_t stk8312_trigger_handler(int irq, void *p)
ret = i2c_smbus_read_i2c_block_data(data->client,
STK8312_REG_XOUT,
STK8312_ALL_CHANNEL_SIZE,
- data->buffer);
+ data->scan.chans);
if (ret < STK8312_ALL_CHANNEL_SIZE) {
dev_err(&data->client->dev, "register read failed\n");
mutex_unlock(&data->lock);
@@ -452,12 +456,12 @@ static irqreturn_t stk8312_trigger_handler(int irq, void *p)
mutex_unlock(&data->lock);
goto err;
}
- data->buffer[i++] = ret;
+ data->scan.chans[i++] = ret;
}
}
mutex_unlock(&data->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
iio_trigger_notify_done(indio_dev->trig);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 538/700] iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (536 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 537/700] iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 539/700] iio: adc: ti-ads1015: " Greg Kroah-Hartman
` (167 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 334883894bc1e145a1e0f5de1b0d1b6a1133f0e6 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: db6a19b8251f ("iio: accel: Add trigger support for STK8BA50")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-8-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/accel/stk8ba50.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 3ead378b02c9..e8087d7ee49f 100644
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -91,12 +91,11 @@ struct stk8ba50_data {
u8 sample_rate_idx;
struct iio_trigger *dready_trig;
bool dready_trigger_on;
- /*
- * 3 x 16-bit channels (10-bit data, 6-bit padding) +
- * 1 x 16 padding +
- * 4 x 16 64-bit timestamp
- */
- s16 buffer[8];
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ s16 chans[3];
+ s64 timetamp __aligned(8);
+ } scan;
};
#define STK8BA50_ACCEL_CHANNEL(index, reg, axis) { \
@@ -324,7 +323,7 @@ static irqreturn_t stk8ba50_trigger_handler(int irq, void *p)
ret = i2c_smbus_read_i2c_block_data(data->client,
STK8BA50_REG_XOUT,
STK8BA50_ALL_CHANNEL_SIZE,
- (u8 *)data->buffer);
+ (u8 *)data->scan.chans);
if (ret < STK8BA50_ALL_CHANNEL_SIZE) {
dev_err(&data->client->dev, "register read failed\n");
goto err;
@@ -337,10 +336,10 @@ static irqreturn_t stk8ba50_trigger_handler(int irq, void *p)
if (ret < 0)
goto err;
- data->buffer[i++] = ret;
+ data->scan.chans[i++] = ret;
}
}
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
mutex_unlock(&data->lock);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 539/700] iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (537 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 538/700] iio: accel: stk8ba50: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 540/700] iio: adc: vf610: " Greg Kroah-Hartman
` (166 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Daniel Baluta,
Andy Shevchenko, Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit d85d71dd1ab67eaa7351f69fec512d8f09d164e1 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: ecc24e72f437 ("iio: adc: Add TI ADS1015 ADC driver support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-9-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/ti-ads1015.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c
index 9fef39bcf997..5b828428be77 100644
--- a/drivers/iio/adc/ti-ads1015.c
+++ b/drivers/iio/adc/ti-ads1015.c
@@ -395,10 +395,14 @@ static irqreturn_t ads1015_trigger_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct ads1015_data *data = iio_priv(indio_dev);
- s16 buf[8]; /* 1x s16 ADC val + 3x s16 padding + 4x s16 timestamp */
+ /* Ensure natural alignment of timestamp */
+ struct {
+ s16 chan;
+ s64 timestamp __aligned(8);
+ } scan;
int chan, ret, res;
- memset(buf, 0, sizeof(buf));
+ memset(&scan, 0, sizeof(scan));
mutex_lock(&data->lock);
chan = find_first_bit(indio_dev->active_scan_mask,
@@ -409,10 +413,10 @@ static irqreturn_t ads1015_trigger_handler(int irq, void *p)
goto err;
}
- buf[0] = res;
+ scan.chan = res;
mutex_unlock(&data->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, buf,
+ iio_push_to_buffers_with_timestamp(indio_dev, &scan,
iio_get_time_ns(indio_dev));
err:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 540/700] iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (538 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 539/700] iio: adc: ti-ads1015: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 541/700] iio: gyro: bmg160: " Greg Kroah-Hartman
` (165 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Stefan-Gabriel Mirea, Sanchayan Maity, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 7765dfaa22ea08abf0c175e7553826ba2a939632 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 0010d6b44406 ("iio: adc: vf610: Add IIO buffer support for Vybrid ADC")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com>
Cc: Sanchayan Maity <maitysanchayan@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-10-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/vf610_adc.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 1d794cf3e3f1..fd57fc43e8e5 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -167,7 +167,11 @@ struct vf610_adc {
u32 sample_freq_avail[5];
struct completion completion;
- u16 buffer[8];
+ /* Ensure the timestamp is naturally aligned */
+ struct {
+ u16 chan;
+ s64 timestamp __aligned(8);
+ } scan;
};
static const u32 vf610_hw_avgs[] = { 1, 4, 8, 16, 32 };
@@ -579,9 +583,9 @@ static irqreturn_t vf610_adc_isr(int irq, void *dev_id)
if (coco & VF610_ADC_HS_COCO0) {
info->value = vf610_adc_read_data(info);
if (iio_buffer_enabled(indio_dev)) {
- info->buffer[0] = info->value;
+ info->scan.chan = info->value;
iio_push_to_buffers_with_timestamp(indio_dev,
- info->buffer,
+ &info->scan,
iio_get_time_ns(indio_dev));
iio_trigger_notify_done(indio_dev->trig);
} else
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 541/700] iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (539 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 540/700] iio: adc: vf610: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 542/700] iio: humidity: am2315: " Greg Kroah-Hartman
` (164 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Stephan Gerhold,
Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 06778d881f3798ce93ffbbbf801234292250b598 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 13426454b649 ("iio: bmg160: Separate i2c and core driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-11-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/gyro/bmg160_core.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 029ef4c34604..457fa8702d19 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -98,7 +98,11 @@ struct bmg160_data {
struct iio_trigger *motion_trig;
struct iio_mount_matrix orientation;
struct mutex mutex;
- s16 buffer[8];
+ /* Ensure naturally aligned timestamp */
+ struct {
+ s16 chans[3];
+ s64 timestamp __aligned(8);
+ } scan;
u32 dps_range;
int ev_enable_state;
int slope_thres;
@@ -882,12 +886,12 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
mutex_lock(&data->mutex);
ret = regmap_bulk_read(data->regmap, BMG160_REG_XOUT_L,
- data->buffer, AXIS_MAX * 2);
+ data->scan.chans, AXIS_MAX * 2);
mutex_unlock(&data->mutex);
if (ret < 0)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
iio_trigger_notify_done(indio_dev->trig);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 542/700] iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (540 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 541/700] iio: gyro: bmg160: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 543/700] iio: prox: srf08: " Greg Kroah-Hartman
` (163 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit f4ca2e2595d9fee65d5ce0d218b22ce00e5b2915 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 0d96d5ead3f7 ("iio: humidity: Add triggered buffer support for AM2315")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-12-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/humidity/am2315.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c
index 02ad1767c845..3398fa413ec5 100644
--- a/drivers/iio/humidity/am2315.c
+++ b/drivers/iio/humidity/am2315.c
@@ -33,7 +33,11 @@
struct am2315_data {
struct i2c_client *client;
struct mutex lock;
- s16 buffer[8]; /* 2x16-bit channels + 2x16 padding + 4x16 timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ s16 chans[2];
+ s64 timestamp __aligned(8);
+ } scan;
};
struct am2315_sensor_data {
@@ -167,20 +171,20 @@ static irqreturn_t am2315_trigger_handler(int irq, void *p)
mutex_lock(&data->lock);
if (*(indio_dev->active_scan_mask) == AM2315_ALL_CHANNEL_MASK) {
- data->buffer[0] = sensor_data.hum_data;
- data->buffer[1] = sensor_data.temp_data;
+ data->scan.chans[0] = sensor_data.hum_data;
+ data->scan.chans[1] = sensor_data.temp_data;
} else {
i = 0;
for_each_set_bit(bit, indio_dev->active_scan_mask,
indio_dev->masklength) {
- data->buffer[i] = (bit ? sensor_data.temp_data :
- sensor_data.hum_data);
+ data->scan.chans[i] = (bit ? sensor_data.temp_data :
+ sensor_data.hum_data);
i++;
}
}
mutex_unlock(&data->lock);
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
iio_trigger_notify_done(indio_dev->trig);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 543/700] iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (541 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 542/700] iio: humidity: am2315: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 544/700] iio: prox: pulsed-light: " Greg Kroah-Hartman
` (162 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andreas Klinger,
Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 19f1a254fe4949fff1e67db386409f48cf438bd7 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 78f839029e1d ("iio: distance: srf08: add IIO driver for us ranger")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-13-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/proximity/srf08.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c
index 70beac5c9c1d..9b0886760f76 100644
--- a/drivers/iio/proximity/srf08.c
+++ b/drivers/iio/proximity/srf08.c
@@ -63,11 +63,11 @@ struct srf08_data {
int range_mm;
struct mutex lock;
- /*
- * triggered buffer
- * 1x16-bit channel + 3x16 padding + 4x16 timestamp
- */
- s16 buffer[8];
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ s16 chan;
+ s64 timestamp __aligned(8);
+ } scan;
/* Sensor-Type */
enum srf08_sensor_type sensor_type;
@@ -190,9 +190,9 @@ static irqreturn_t srf08_trigger_handler(int irq, void *p)
mutex_lock(&data->lock);
- data->buffer[0] = sensor_data;
+ data->scan.chan = sensor_data;
iio_push_to_buffers_with_timestamp(indio_dev,
- data->buffer, pf->timestamp);
+ &data->scan, pf->timestamp);
mutex_unlock(&data->lock);
err:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 544/700] iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (542 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 543/700] iio: prox: srf08: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 545/700] iio: prox: as3935: " Greg Kroah-Hartman
` (161 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Matt Ranostay,
Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 679cc377a03ff1944491eafc7355c1eb1fad4109 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: cb119d535083 ("iio: proximity: add support for PulsedLight LIDAR")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-14-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/proximity/pulsedlight-lidar-lite-v2.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
index cc206bfa09c7..d854b8d5fbba 100644
--- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
+++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
@@ -44,7 +44,11 @@ struct lidar_data {
int (*xfer)(struct lidar_data *data, u8 reg, u8 *val, int len);
int i2c_enabled;
- u16 buffer[8]; /* 2 byte distance + 8 byte timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ u16 chan;
+ s64 timestamp __aligned(8);
+ } scan;
};
static const struct iio_chan_spec lidar_channels[] = {
@@ -230,9 +234,9 @@ static irqreturn_t lidar_trigger_handler(int irq, void *private)
struct lidar_data *data = iio_priv(indio_dev);
int ret;
- ret = lidar_get_measurement(data, data->buffer);
+ ret = lidar_get_measurement(data, &data->scan.chan);
if (!ret) {
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
} else if (ret != -EINVAL) {
dev_err(&data->client->dev, "cannot read LIDAR measurement");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 545/700] iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (543 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 544/700] iio: prox: pulsed-light: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 546/700] iio: magn: hmc5843: " Greg Kroah-Hartman
` (160 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Matt Ranostay,
Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 37eb8d8c64f2ecb3a5521ba1cc1fad973adfae41 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 37b1ba2c68cf ("iio: proximity: as3935: fix buffer stack trashing")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-15-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/proximity/as3935.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c
index b79ada839e01..98330e26ac3b 100644
--- a/drivers/iio/proximity/as3935.c
+++ b/drivers/iio/proximity/as3935.c
@@ -59,7 +59,11 @@ struct as3935_state {
unsigned long noise_tripped;
u32 tune_cap;
u32 nflwdth_reg;
- u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ u8 chan;
+ s64 timestamp __aligned(8);
+ } scan;
u8 buf[2] ____cacheline_aligned;
};
@@ -225,8 +229,8 @@ static irqreturn_t as3935_trigger_handler(int irq, void *private)
if (ret)
goto err_read;
- st->buffer[0] = val & AS3935_DATA_MASK;
- iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
+ st->scan.chan = val & AS3935_DATA_MASK;
+ iio_push_to_buffers_with_timestamp(indio_dev, &st->scan,
iio_get_time_ns(indio_dev));
err_read:
iio_trigger_notify_done(indio_dev->trig);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 546/700] iio: magn: hmc5843: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (544 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 545/700] iio: prox: as3935: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 547/700] iio: magn: bmc150: " Greg Kroah-Hartman
` (159 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 1ef2f51e9fe424ccecca5bb0373d71b900c2cd41 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 7247645f6865 ("iio: hmc5843: Move hmc5843 out of staging")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-16-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/magnetometer/hmc5843.h | 8 ++++++--
drivers/iio/magnetometer/hmc5843_core.c | 4 ++--
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/magnetometer/hmc5843.h b/drivers/iio/magnetometer/hmc5843.h
index 3f6c0b662941..242f742f2643 100644
--- a/drivers/iio/magnetometer/hmc5843.h
+++ b/drivers/iio/magnetometer/hmc5843.h
@@ -33,7 +33,8 @@ enum hmc5843_ids {
* @lock: update and read regmap data
* @regmap: hardware access register maps
* @variant: describe chip variants
- * @buffer: 3x 16-bit channels + padding + 64-bit timestamp
+ * @scan: buffer to pack data for passing to
+ * iio_push_to_buffers_with_timestamp()
*/
struct hmc5843_data {
struct device *dev;
@@ -41,7 +42,10 @@ struct hmc5843_data {
struct regmap *regmap;
const struct hmc5843_chip_info *variant;
struct iio_mount_matrix orientation;
- __be16 buffer[8];
+ struct {
+ __be16 chans[3];
+ s64 timestamp __aligned(8);
+ } scan;
};
int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
diff --git a/drivers/iio/magnetometer/hmc5843_core.c b/drivers/iio/magnetometer/hmc5843_core.c
index 780faea61d82..221563e0c18f 100644
--- a/drivers/iio/magnetometer/hmc5843_core.c
+++ b/drivers/iio/magnetometer/hmc5843_core.c
@@ -446,13 +446,13 @@ static irqreturn_t hmc5843_trigger_handler(int irq, void *p)
}
ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS,
- data->buffer, 3 * sizeof(__be16));
+ data->scan.chans, sizeof(data->scan.chans));
mutex_unlock(&data->lock);
if (ret < 0)
goto done;
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
done:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 547/700] iio: magn: bmc150: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (545 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 546/700] iio: magn: hmc5843: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 548/700] iio: light: isl29125: " Greg Kroah-Hartman
` (158 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Stephan Gerhold,
Linus Walleij, Andy Shevchenko, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 7692088f72865c41b6b531fd09486ee99a5da930 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: c91746a2361d ("iio: magn: Add support for BMC150 magnetometer")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-17-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/magnetometer/bmc150_magn.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index b2f3129e1b4f..20a0842f0e3a 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -138,8 +138,11 @@ struct bmc150_magn_data {
struct regmap *regmap;
struct regulator_bulk_data regulators[2];
struct iio_mount_matrix orientation;
- /* 4 x 32 bits for x, y z, 4 bytes align, 64 bits timestamp */
- s32 buffer[6];
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ s32 chans[3];
+ s64 timestamp __aligned(8);
+ } scan;
struct iio_trigger *dready_trig;
bool dready_trigger_on;
int max_odr;
@@ -675,11 +678,11 @@ static irqreturn_t bmc150_magn_trigger_handler(int irq, void *p)
int ret;
mutex_lock(&data->mutex);
- ret = bmc150_magn_read_xyz(data, data->buffer);
+ ret = bmc150_magn_read_xyz(data, data->scan.chans);
if (ret < 0)
goto err;
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
pf->timestamp);
err:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 548/700] iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (546 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 547/700] iio: magn: bmc150: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 549/700] iio: light: tcs3414: " Greg Kroah-Hartman
` (157 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 3d4725194de6935dba2ad7c9cc075c885008f747 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: 6c25539cbc46 ("iio: Add Intersil isl29125 digital color light sensor driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-18-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/light/isl29125.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c
index b93b85dbc3a6..ba53b50d711a 100644
--- a/drivers/iio/light/isl29125.c
+++ b/drivers/iio/light/isl29125.c
@@ -51,7 +51,11 @@
struct isl29125_data {
struct i2c_client *client;
u8 conf1;
- u16 buffer[8]; /* 3x 16-bit, padding, 8 bytes timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ u16 chans[3];
+ s64 timestamp __aligned(8);
+ } scan;
};
#define ISL29125_CHANNEL(_color, _si) { \
@@ -184,10 +188,10 @@ static irqreturn_t isl29125_trigger_handler(int irq, void *p)
if (ret < 0)
goto done;
- data->buffer[j++] = ret;
+ data->scan.chans[j++] = ret;
}
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
done:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 549/700] iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (547 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 548/700] iio: light: isl29125: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 550/700] iio: light: tcs3472: " Greg Kroah-Hartman
` (156 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit ff08fbc22ab32ccc6690c21b0e5e1d402dcc076f ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes: a244e7b57f0f ("iio: Add driver for AMS/TAOS tcs3414 digital color sensor")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-19-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/light/tcs3414.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c
index 6fe5d46f80d4..0593abd600ec 100644
--- a/drivers/iio/light/tcs3414.c
+++ b/drivers/iio/light/tcs3414.c
@@ -53,7 +53,11 @@ struct tcs3414_data {
u8 control;
u8 gain;
u8 timing;
- u16 buffer[8]; /* 4x 16-bit + 8 bytes timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ u16 chans[4];
+ s64 timestamp __aligned(8);
+ } scan;
};
#define TCS3414_CHANNEL(_color, _si, _addr) { \
@@ -209,10 +213,10 @@ static irqreturn_t tcs3414_trigger_handler(int irq, void *p)
if (ret < 0)
goto done;
- data->buffer[j++] = ret;
+ data->scan.chans[j++] = ret;
}
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
done:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 550/700] iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (548 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 549/700] iio: light: tcs3414: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 551/700] iio: chemical: atlas: " Greg Kroah-Hartman
` (155 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andy Shevchenko,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit df2f37cffd6ed486d613e7ee22aadc8e49ae2dd3 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp().
Fixes tag is not strictly accurate as prior to that patch there was
potentially an unaligned write. However, any backport past there will
need to be done manually.
Fixes: 0624bf847dd0 ("iio:tcs3472: Use iio_push_to_buffers_with_timestamp()")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210501170121.512209-20-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/light/tcs3472.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index b41068492338..371c6a39a165 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -64,7 +64,11 @@ struct tcs3472_data {
u8 control;
u8 atime;
u8 apers;
- u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */
+ /* Ensure timestamp is naturally aligned */
+ struct {
+ u16 chans[4];
+ s64 timestamp __aligned(8);
+ } scan;
};
static const struct iio_event_spec tcs3472_events[] = {
@@ -386,10 +390,10 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
if (ret < 0)
goto done;
- data->buffer[j++] = ret;
+ data->scan.chans[j++] = ret;
}
- iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
iio_get_time_ns(indio_dev));
done:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 551/700] iio: chemical: atlas: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (549 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 550/700] iio: light: tcs3472: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 552/700] iio: cros_ec_sensors: Fix alignment of buffer " Greg Kroah-Hartman
` (154 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Matt Ranostay, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit b0f5d8db7348a6ce5cdd79fba46ebc91eebc8fd9 ]
Variable location for the timestamp, so just use __aligned(8)
to ensure it is always possible to naturally align it.
Found during an audit of all calls of uses of
iio_push_to_buffers_with_timestamp()
Fixes tag is not accurate, but it will need manual backporting beyond
that point if anyone cares.
Fixes: 0d15190f53b4 ("iio: chemical: atlas-ph-sensor: rename atlas-ph-sensor to atlas-sensor")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Link: https://lore.kernel.org/r/20210501171352.512953-6-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/chemical/atlas-sensor.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index cdab9d04dedd..0c8a50de8940 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -91,8 +91,8 @@ struct atlas_data {
struct regmap *regmap;
struct irq_work work;
unsigned int interrupt_enabled;
-
- __be32 buffer[6]; /* 96-bit data + 32-bit pad + 64-bit timestamp */
+ /* 96-bit data + 32-bit pad + 64-bit timestamp */
+ __be32 buffer[6] __aligned(8);
};
static const struct regmap_config atlas_regmap_config = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 552/700] iio: cros_ec_sensors: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (550 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 551/700] iio: chemical: atlas: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 553/700] iio: potentiostat: lmp91000: " Greg Kroah-Hartman
` (153 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 8dea228b174ac9637b567e5ef54f4c40db4b3c41 ]
The samples buffer is passed to iio_push_to_buffers_with_timestamp()
which requires a buffer aligned to 8 bytes as it is assumed that
the timestamp will be naturally aligned if present.
Fixes tag is inaccurate but prior to that likely manual backporting needed
(for anything before 4.18) Earlier than that the include file to fix is
drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.h:
commit 974e6f02e27 ("iio: cros_ec_sensors_core: Add common functions
for the ChromeOS EC Sensor Hub.") present since kernel stable 4.10.
(Thanks to Gwendal for tracking this down)
Fixes: 5a0b8cb46624c ("iio: cros_ec: Move cros_ec_sensors_core.h in /include")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org
Link: https://lore.kernel.org/r/20210501171352.512953-7-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/iio/common/cros_ec_sensors_core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h
index c9b80be82440..f82857bd693f 100644
--- a/include/linux/iio/common/cros_ec_sensors_core.h
+++ b/include/linux/iio/common/cros_ec_sensors_core.h
@@ -77,7 +77,7 @@ struct cros_ec_sensors_core_state {
u16 scale;
} calib[CROS_EC_SENSOR_MAX_AXIS];
s8 sign[CROS_EC_SENSOR_MAX_AXIS];
- u8 samples[CROS_EC_SAMPLE_SIZE];
+ u8 samples[CROS_EC_SAMPLE_SIZE] __aligned(8);
int (*read_ec_sensors_data)(struct iio_dev *indio_dev,
unsigned long scan_mask, s16 *data);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 553/700] iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (551 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 552/700] iio: cros_ec_sensors: Fix alignment of buffer " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 554/700] ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe() Greg Kroah-Hartman
` (152 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Matt Ranostay, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 8979b67ec61abc232636400ee8c758a16a73c95f ]
Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.
Here structure is not used, because this buffer is also used
elsewhere in the driver.
Fixes: 67e17300dc1d ("iio: potentiostat: add LMP91000 support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Link: https://lore.kernel.org/r/20210501171352.512953-8-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/potentiostat/lmp91000.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/potentiostat/lmp91000.c b/drivers/iio/potentiostat/lmp91000.c
index f34ca769dc20..d7ff74a798ba 100644
--- a/drivers/iio/potentiostat/lmp91000.c
+++ b/drivers/iio/potentiostat/lmp91000.c
@@ -71,8 +71,8 @@ struct lmp91000_data {
struct completion completion;
u8 chan_select;
-
- u32 buffer[4]; /* 64-bit data + 64-bit timestamp */
+ /* 64-bit data + 64-bit naturally aligned timestamp */
+ u32 buffer[4] __aligned(8);
};
static const struct iio_chan_spec lmp91000_channels[] = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 554/700] ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (552 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 553/700] iio: potentiostat: lmp91000: " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 555/700] ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() Greg Kroah-Hartman
` (151 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
Mark Brown, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit d14eece945a8068a017995f7512ea2beac21e34b ]
Fix the missing clk_disable_unprepare() before return
from rk3328_platform_probe() in the error handling case.
Fixes: c32759035ad2 ("ASoC: rockchip: support ACODEC for rk3328")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210518075847.1116983-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rk3328_codec.c | 28 ++++++++++++++++++++++------
1 file changed, 22 insertions(+), 6 deletions(-)
diff --git a/sound/soc/codecs/rk3328_codec.c b/sound/soc/codecs/rk3328_codec.c
index bfefefcc76d8..758d439e8c7a 100644
--- a/sound/soc/codecs/rk3328_codec.c
+++ b/sound/soc/codecs/rk3328_codec.c
@@ -474,7 +474,8 @@ static int rk3328_platform_probe(struct platform_device *pdev)
rk3328->pclk = devm_clk_get(&pdev->dev, "pclk");
if (IS_ERR(rk3328->pclk)) {
dev_err(&pdev->dev, "can't get acodec pclk\n");
- return PTR_ERR(rk3328->pclk);
+ ret = PTR_ERR(rk3328->pclk);
+ goto err_unprepare_mclk;
}
ret = clk_prepare_enable(rk3328->pclk);
@@ -484,19 +485,34 @@ static int rk3328_platform_probe(struct platform_device *pdev)
}
base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
+ if (IS_ERR(base)) {
+ ret = PTR_ERR(base);
+ goto err_unprepare_pclk;
+ }
rk3328->regmap = devm_regmap_init_mmio(&pdev->dev, base,
&rk3328_codec_regmap_config);
- if (IS_ERR(rk3328->regmap))
- return PTR_ERR(rk3328->regmap);
+ if (IS_ERR(rk3328->regmap)) {
+ ret = PTR_ERR(rk3328->regmap);
+ goto err_unprepare_pclk;
+ }
platform_set_drvdata(pdev, rk3328);
- return devm_snd_soc_register_component(&pdev->dev, &soc_codec_rk3328,
+ ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_rk3328,
rk3328_dai,
ARRAY_SIZE(rk3328_dai));
+ if (ret)
+ goto err_unprepare_pclk;
+
+ return 0;
+
+err_unprepare_pclk:
+ clk_disable_unprepare(rk3328->pclk);
+
+err_unprepare_mclk:
+ clk_disable_unprepare(rk3328->mclk);
+ return ret;
}
static const struct of_device_id rk3328_codec_of_match[] __maybe_unused = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 555/700] ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (553 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 554/700] ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 556/700] backlight: lm3630a_bl: Put fwnode in error case during ->probe() Greg Kroah-Hartman
` (150 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
Mark Brown, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit 375904e3931955fcf0a847f029b2492a117efc43 ]
After calling clk_prepare_enable(), clk_disable_unprepare() need
be called when calling clk_set_rate() failed.
Fixes: 0bf750f4cbe1 ("ASoC: hisilicon: Add hi6210 i2s audio driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210518044514.607010-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/hisilicon/hi6210-i2s.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/sound/soc/hisilicon/hi6210-i2s.c b/sound/soc/hisilicon/hi6210-i2s.c
index 907f5f1f7b44..ff05b9779e4b 100644
--- a/sound/soc/hisilicon/hi6210-i2s.c
+++ b/sound/soc/hisilicon/hi6210-i2s.c
@@ -102,18 +102,15 @@ static int hi6210_i2s_startup(struct snd_pcm_substream *substream,
for (n = 0; n < i2s->clocks; n++) {
ret = clk_prepare_enable(i2s->clk[n]);
- if (ret) {
- while (n--)
- clk_disable_unprepare(i2s->clk[n]);
- return ret;
- }
+ if (ret)
+ goto err_unprepare_clk;
}
ret = clk_set_rate(i2s->clk[CLK_I2S_BASE], 49152000);
if (ret) {
dev_err(i2s->dev, "%s: setting 49.152MHz base rate failed %d\n",
__func__, ret);
- return ret;
+ goto err_unprepare_clk;
}
/* enable clock before frequency division */
@@ -165,6 +162,11 @@ static int hi6210_i2s_startup(struct snd_pcm_substream *substream,
hi6210_write_reg(i2s, HII2S_SW_RST_N, val);
return 0;
+
+err_unprepare_clk:
+ while (n--)
+ clk_disable_unprepare(i2s->clk[n]);
+ return ret;
}
static void hi6210_i2s_shutdown(struct snd_pcm_substream *substream,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 556/700] backlight: lm3630a_bl: Put fwnode in error case during ->probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (554 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 555/700] ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 557/700] usb: typec: tcpm: Fix up PR_SWAP when vsafe0v is signalled Greg Kroah-Hartman
` (149 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Brian Masney, Dan Murphy,
Andy Shevchenko, Daniel Thompson, Lee Jones, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 6d1c32dbedd7d7e7372aa38033ec8782c39f6379 ]
device_for_each_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.
Cc: Brian Masney <masneyb@onstation.org>
Cc: Dan Murphy <dmurphy@ti.com>
Fixes: 8fbce8efe15cd ("backlight: lm3630a: Add firmware node support")
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/video/backlight/lm3630a_bl.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index e88a2b0e5904..662029d6a3dc 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -482,8 +482,10 @@ static int lm3630a_parse_node(struct lm3630a_chip *pchip,
device_for_each_child_node(pchip->dev, node) {
ret = lm3630a_parse_bank(pdata, node, &seen_led_sources);
- if (ret)
+ if (ret) {
+ fwnode_handle_put(node);
return ret;
+ }
}
return ret;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 557/700] usb: typec: tcpm: Fix up PR_SWAP when vsafe0v is signalled
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (555 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 556/700] backlight: lm3630a_bl: Put fwnode in error case during ->probe() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 558/700] ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() Greg Kroah-Hartman
` (148 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Guenter Roeck, Heikki Krogerus,
Badhri Jagan Sridharan, Sasha Levin
From: Badhri Jagan Sridharan <badhri@google.com>
[ Upstream commit d112efbe6dbf7d4c482e2a3f381fa315aabfe63b ]
During PR_SWAP, When TCPM is in PR_SWAP_SNK_SRC_SINK_OFF, vbus is
expected to reach VSAFE0V when source turns off vbus. Do not move
to SNK_UNATTACHED state when this happens.
Fixes: 28b43d3d746b ("usb: typec: tcpm: Introduce vsafe0v for vbus")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20210517192112.40934-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/typec/tcpm/tcpm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index a57047d7fac8..07dee0118c27 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -5187,6 +5187,9 @@ static void _tcpm_pd_vbus_vsafe0v(struct tcpm_port *port)
tcpm_set_state(port, SNK_UNATTACHED, 0);
}
break;
+ case PR_SWAP_SNK_SRC_SINK_OFF:
+ /* Do nothing, vsafe0v is expected during transition */
+ break;
default:
if (port->pwr_role == TYPEC_SINK && port->auto_vbus_discharge_enabled)
tcpm_set_state(port, SNK_UNATTACHED, 0);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 558/700] ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (556 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 557/700] usb: typec: tcpm: Fix up PR_SWAP when vsafe0v is signalled Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 559/700] Input: hil_kbd - fix error return code in hil_dev_connect() Greg Kroah-Hartman
` (147 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kuninori Morimoto, Mark Brown, Sasha Levin
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[ Upstream commit cf9d5c6619fadfc41cf8f5154cb990cc38e3da85 ]
commit 06e8f5c842f2d ("ASoC: rsnd: don't call clk_get_rate() under
atomic context") used saved clk_rate, thus for_each_rsnd_clk()
is no longer needed. This patch fixes it.
Fixes: 06e8f5c842f2d ("ASoC: rsnd: don't call clk_get_rate() under atomic context")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v978oe2u.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/sh/rcar/adg.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c
index abdfd9cf91e2..19c604b2e248 100644
--- a/sound/soc/sh/rcar/adg.c
+++ b/sound/soc/sh/rcar/adg.c
@@ -289,7 +289,6 @@ static void rsnd_adg_set_ssi_clk(struct rsnd_mod *ssi_mod, u32 val)
int rsnd_adg_clk_query(struct rsnd_priv *priv, unsigned int rate)
{
struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
- struct clk *clk;
int i;
int sel_table[] = {
[CLKA] = 0x1,
@@ -302,10 +301,9 @@ int rsnd_adg_clk_query(struct rsnd_priv *priv, unsigned int rate)
* find suitable clock from
* AUDIO_CLKA/AUDIO_CLKB/AUDIO_CLKC/AUDIO_CLKI.
*/
- for_each_rsnd_clk(clk, adg, i) {
+ for (i = 0; i < CLKMAX; i++)
if (rate == adg->clk_rate[i])
return sel_table[i];
- }
/*
* find divided clock from BRGA/BRGB
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 559/700] Input: hil_kbd - fix error return code in hil_dev_connect()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (557 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 558/700] ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 560/700] perf scripting python: Fix tuple_set_u64() Greg Kroah-Hartman
` (146 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei,
Dmitry Torokhov, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit d9b576917a1d0efa293801a264150a1b37691617 ]
Return error code -EINVAL rather than '0' when the combo devices are not
supported.
Fixes: fa71c605c2bb ("Input: combine hil_kbd and hil_ptr drivers")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210515030053.6824-1-thunder.leizhen@huawei.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/input/keyboard/hil_kbd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index bb29a7c9a1c0..54afb38601b9 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -512,6 +512,7 @@ static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
HIL_IDD_NUM_AXES_PER_SET(*idd)) {
printk(KERN_INFO PREFIX
"combo devices are not supported.\n");
+ error = -EINVAL;
goto bail1;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 560/700] perf scripting python: Fix tuple_set_u64()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (558 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 559/700] Input: hil_kbd - fix error return code in hil_dev_connect() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 561/700] mtd: partitions: redboot: seek fis-index-block in the right node Greg Kroah-Hartman
` (145 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Adrian Hunter, Andi Kleen, Jiri Olsa,
Arnaldo Carvalho de Melo, Sasha Levin
From: Adrian Hunter <adrian.hunter@intel.com>
[ Upstream commit d04c1ff0b3ddd5c0fbbe640996c8eaad279ed1c5 ]
tuple_set_u64() produces a signed value instead of an unsigned value.
That works for database export but not other cases. Rename to
tuple_set_d64() for database export and fix tuple_set_u64().
Fixes: df919b400ad3f ("perf scripting python: Extend interface to export data in a database-friendly way")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20210525095112.1399-2-adrian.hunter@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../scripting-engines/trace-event-python.c | 146 ++++++++++--------
1 file changed, 81 insertions(+), 65 deletions(-)
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index c83c2c6564e0..23dc5014e711 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -934,7 +934,7 @@ static PyObject *tuple_new(unsigned int sz)
return t;
}
-static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
+static int tuple_set_s64(PyObject *t, unsigned int pos, s64 val)
{
#if BITS_PER_LONG == 64
return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
@@ -944,6 +944,22 @@ static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
#endif
}
+/*
+ * Databases support only signed 64-bit numbers, so even though we are
+ * exporting a u64, it must be as s64.
+ */
+#define tuple_set_d64 tuple_set_s64
+
+static int tuple_set_u64(PyObject *t, unsigned int pos, u64 val)
+{
+#if BITS_PER_LONG == 64
+ return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLong(val));
+#endif
+#if BITS_PER_LONG == 32
+ return PyTuple_SetItem(t, pos, PyLong_FromUnsignedLongLong(val));
+#endif
+}
+
static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val)
{
return PyTuple_SetItem(t, pos, _PyLong_FromLong(val));
@@ -967,7 +983,7 @@ static int python_export_evsel(struct db_export *dbe, struct evsel *evsel)
t = tuple_new(2);
- tuple_set_u64(t, 0, evsel->db_id);
+ tuple_set_d64(t, 0, evsel->db_id);
tuple_set_string(t, 1, evsel__name(evsel));
call_object(tables->evsel_handler, t, "evsel_table");
@@ -985,7 +1001,7 @@ static int python_export_machine(struct db_export *dbe,
t = tuple_new(3);
- tuple_set_u64(t, 0, machine->db_id);
+ tuple_set_d64(t, 0, machine->db_id);
tuple_set_s32(t, 1, machine->pid);
tuple_set_string(t, 2, machine->root_dir ? machine->root_dir : "");
@@ -1004,9 +1020,9 @@ static int python_export_thread(struct db_export *dbe, struct thread *thread,
t = tuple_new(5);
- tuple_set_u64(t, 0, thread->db_id);
- tuple_set_u64(t, 1, machine->db_id);
- tuple_set_u64(t, 2, main_thread_db_id);
+ tuple_set_d64(t, 0, thread->db_id);
+ tuple_set_d64(t, 1, machine->db_id);
+ tuple_set_d64(t, 2, main_thread_db_id);
tuple_set_s32(t, 3, thread->pid_);
tuple_set_s32(t, 4, thread->tid);
@@ -1025,10 +1041,10 @@ static int python_export_comm(struct db_export *dbe, struct comm *comm,
t = tuple_new(5);
- tuple_set_u64(t, 0, comm->db_id);
+ tuple_set_d64(t, 0, comm->db_id);
tuple_set_string(t, 1, comm__str(comm));
- tuple_set_u64(t, 2, thread->db_id);
- tuple_set_u64(t, 3, comm->start);
+ tuple_set_d64(t, 2, thread->db_id);
+ tuple_set_d64(t, 3, comm->start);
tuple_set_s32(t, 4, comm->exec);
call_object(tables->comm_handler, t, "comm_table");
@@ -1046,9 +1062,9 @@ static int python_export_comm_thread(struct db_export *dbe, u64 db_id,
t = tuple_new(3);
- tuple_set_u64(t, 0, db_id);
- tuple_set_u64(t, 1, comm->db_id);
- tuple_set_u64(t, 2, thread->db_id);
+ tuple_set_d64(t, 0, db_id);
+ tuple_set_d64(t, 1, comm->db_id);
+ tuple_set_d64(t, 2, thread->db_id);
call_object(tables->comm_thread_handler, t, "comm_thread_table");
@@ -1068,8 +1084,8 @@ static int python_export_dso(struct db_export *dbe, struct dso *dso,
t = tuple_new(5);
- tuple_set_u64(t, 0, dso->db_id);
- tuple_set_u64(t, 1, machine->db_id);
+ tuple_set_d64(t, 0, dso->db_id);
+ tuple_set_d64(t, 1, machine->db_id);
tuple_set_string(t, 2, dso->short_name);
tuple_set_string(t, 3, dso->long_name);
tuple_set_string(t, 4, sbuild_id);
@@ -1090,10 +1106,10 @@ static int python_export_symbol(struct db_export *dbe, struct symbol *sym,
t = tuple_new(6);
- tuple_set_u64(t, 0, *sym_db_id);
- tuple_set_u64(t, 1, dso->db_id);
- tuple_set_u64(t, 2, sym->start);
- tuple_set_u64(t, 3, sym->end);
+ tuple_set_d64(t, 0, *sym_db_id);
+ tuple_set_d64(t, 1, dso->db_id);
+ tuple_set_d64(t, 2, sym->start);
+ tuple_set_d64(t, 3, sym->end);
tuple_set_s32(t, 4, sym->binding);
tuple_set_string(t, 5, sym->name);
@@ -1130,30 +1146,30 @@ static void python_export_sample_table(struct db_export *dbe,
t = tuple_new(24);
- tuple_set_u64(t, 0, es->db_id);
- tuple_set_u64(t, 1, es->evsel->db_id);
- tuple_set_u64(t, 2, es->al->maps->machine->db_id);
- tuple_set_u64(t, 3, es->al->thread->db_id);
- tuple_set_u64(t, 4, es->comm_db_id);
- tuple_set_u64(t, 5, es->dso_db_id);
- tuple_set_u64(t, 6, es->sym_db_id);
- tuple_set_u64(t, 7, es->offset);
- tuple_set_u64(t, 8, es->sample->ip);
- tuple_set_u64(t, 9, es->sample->time);
+ tuple_set_d64(t, 0, es->db_id);
+ tuple_set_d64(t, 1, es->evsel->db_id);
+ tuple_set_d64(t, 2, es->al->maps->machine->db_id);
+ tuple_set_d64(t, 3, es->al->thread->db_id);
+ tuple_set_d64(t, 4, es->comm_db_id);
+ tuple_set_d64(t, 5, es->dso_db_id);
+ tuple_set_d64(t, 6, es->sym_db_id);
+ tuple_set_d64(t, 7, es->offset);
+ tuple_set_d64(t, 8, es->sample->ip);
+ tuple_set_d64(t, 9, es->sample->time);
tuple_set_s32(t, 10, es->sample->cpu);
- tuple_set_u64(t, 11, es->addr_dso_db_id);
- tuple_set_u64(t, 12, es->addr_sym_db_id);
- tuple_set_u64(t, 13, es->addr_offset);
- tuple_set_u64(t, 14, es->sample->addr);
- tuple_set_u64(t, 15, es->sample->period);
- tuple_set_u64(t, 16, es->sample->weight);
- tuple_set_u64(t, 17, es->sample->transaction);
- tuple_set_u64(t, 18, es->sample->data_src);
+ tuple_set_d64(t, 11, es->addr_dso_db_id);
+ tuple_set_d64(t, 12, es->addr_sym_db_id);
+ tuple_set_d64(t, 13, es->addr_offset);
+ tuple_set_d64(t, 14, es->sample->addr);
+ tuple_set_d64(t, 15, es->sample->period);
+ tuple_set_d64(t, 16, es->sample->weight);
+ tuple_set_d64(t, 17, es->sample->transaction);
+ tuple_set_d64(t, 18, es->sample->data_src);
tuple_set_s32(t, 19, es->sample->flags & PERF_BRANCH_MASK);
tuple_set_s32(t, 20, !!(es->sample->flags & PERF_IP_FLAG_IN_TX));
- tuple_set_u64(t, 21, es->call_path_id);
- tuple_set_u64(t, 22, es->sample->insn_cnt);
- tuple_set_u64(t, 23, es->sample->cyc_cnt);
+ tuple_set_d64(t, 21, es->call_path_id);
+ tuple_set_d64(t, 22, es->sample->insn_cnt);
+ tuple_set_d64(t, 23, es->sample->cyc_cnt);
call_object(tables->sample_handler, t, "sample_table");
@@ -1167,8 +1183,8 @@ static void python_export_synth(struct db_export *dbe, struct export_sample *es)
t = tuple_new(3);
- tuple_set_u64(t, 0, es->db_id);
- tuple_set_u64(t, 1, es->evsel->core.attr.config);
+ tuple_set_d64(t, 0, es->db_id);
+ tuple_set_d64(t, 1, es->evsel->core.attr.config);
tuple_set_bytes(t, 2, es->sample->raw_data, es->sample->raw_size);
call_object(tables->synth_handler, t, "synth_data");
@@ -1200,10 +1216,10 @@ static int python_export_call_path(struct db_export *dbe, struct call_path *cp)
t = tuple_new(4);
- tuple_set_u64(t, 0, cp->db_id);
- tuple_set_u64(t, 1, parent_db_id);
- tuple_set_u64(t, 2, sym_db_id);
- tuple_set_u64(t, 3, cp->ip);
+ tuple_set_d64(t, 0, cp->db_id);
+ tuple_set_d64(t, 1, parent_db_id);
+ tuple_set_d64(t, 2, sym_db_id);
+ tuple_set_d64(t, 3, cp->ip);
call_object(tables->call_path_handler, t, "call_path_table");
@@ -1221,20 +1237,20 @@ static int python_export_call_return(struct db_export *dbe,
t = tuple_new(14);
- tuple_set_u64(t, 0, cr->db_id);
- tuple_set_u64(t, 1, cr->thread->db_id);
- tuple_set_u64(t, 2, comm_db_id);
- tuple_set_u64(t, 3, cr->cp->db_id);
- tuple_set_u64(t, 4, cr->call_time);
- tuple_set_u64(t, 5, cr->return_time);
- tuple_set_u64(t, 6, cr->branch_count);
- tuple_set_u64(t, 7, cr->call_ref);
- tuple_set_u64(t, 8, cr->return_ref);
- tuple_set_u64(t, 9, cr->cp->parent->db_id);
+ tuple_set_d64(t, 0, cr->db_id);
+ tuple_set_d64(t, 1, cr->thread->db_id);
+ tuple_set_d64(t, 2, comm_db_id);
+ tuple_set_d64(t, 3, cr->cp->db_id);
+ tuple_set_d64(t, 4, cr->call_time);
+ tuple_set_d64(t, 5, cr->return_time);
+ tuple_set_d64(t, 6, cr->branch_count);
+ tuple_set_d64(t, 7, cr->call_ref);
+ tuple_set_d64(t, 8, cr->return_ref);
+ tuple_set_d64(t, 9, cr->cp->parent->db_id);
tuple_set_s32(t, 10, cr->flags);
- tuple_set_u64(t, 11, cr->parent_db_id);
- tuple_set_u64(t, 12, cr->insn_count);
- tuple_set_u64(t, 13, cr->cyc_count);
+ tuple_set_d64(t, 11, cr->parent_db_id);
+ tuple_set_d64(t, 12, cr->insn_count);
+ tuple_set_d64(t, 13, cr->cyc_count);
call_object(tables->call_return_handler, t, "call_return_table");
@@ -1254,14 +1270,14 @@ static int python_export_context_switch(struct db_export *dbe, u64 db_id,
t = tuple_new(9);
- tuple_set_u64(t, 0, db_id);
- tuple_set_u64(t, 1, machine->db_id);
- tuple_set_u64(t, 2, sample->time);
+ tuple_set_d64(t, 0, db_id);
+ tuple_set_d64(t, 1, machine->db_id);
+ tuple_set_d64(t, 2, sample->time);
tuple_set_s32(t, 3, sample->cpu);
- tuple_set_u64(t, 4, th_out_id);
- tuple_set_u64(t, 5, comm_out_id);
- tuple_set_u64(t, 6, th_in_id);
- tuple_set_u64(t, 7, comm_in_id);
+ tuple_set_d64(t, 4, th_out_id);
+ tuple_set_d64(t, 5, comm_out_id);
+ tuple_set_d64(t, 6, th_in_id);
+ tuple_set_d64(t, 7, comm_in_id);
tuple_set_s32(t, 8, flags);
call_object(tables->context_switch_handler, t, "context_switch");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 561/700] mtd: partitions: redboot: seek fis-index-block in the right node
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (559 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 560/700] perf scripting python: Fix tuple_set_u64() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 562/700] mtd: parsers: qcom: Fix leaking of partition name Greg Kroah-Hartman
` (144 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Corentin Labbe, Linus Walleij,
Miquel Raynal, Sasha Levin
From: Corentin Labbe <clabbe@baylibre.com>
[ Upstream commit 237960880960863fb41888763d635b384cffb104 ]
fis-index-block is seeked in the master node and not in the partitions node.
For following binding and current usage, the driver need to check the
partitions subnode.
Fixes: c0e118c8a1a3 ("mtd: partitions: Add OF support to RedBoot partitions")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210520114851.1274609-1-clabbe@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/parsers/redboot.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/parsers/redboot.c b/drivers/mtd/parsers/redboot.c
index 91146bdc4713..3ccd6363ee8c 100644
--- a/drivers/mtd/parsers/redboot.c
+++ b/drivers/mtd/parsers/redboot.c
@@ -45,6 +45,7 @@ static inline int redboot_checksum(struct fis_image_desc *img)
static void parse_redboot_of(struct mtd_info *master)
{
struct device_node *np;
+ struct device_node *npart;
u32 dirblock;
int ret;
@@ -52,7 +53,11 @@ static void parse_redboot_of(struct mtd_info *master)
if (!np)
return;
- ret = of_property_read_u32(np, "fis-index-block", &dirblock);
+ npart = of_get_child_by_name(np, "partitions");
+ if (!npart)
+ return;
+
+ ret = of_property_read_u32(npart, "fis-index-block", &dirblock);
if (ret)
return;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 562/700] mtd: parsers: qcom: Fix leaking of partition name
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (560 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 561/700] mtd: partitions: redboot: seek fis-index-block in the right node Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 563/700] mtd: rawnand: arasan: Ensure proper configuration for the asserted target Greg Kroah-Hartman
` (143 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Ansuel Smith, Bjorn Andersson,
Manivannan Sadhasivam, Miquel Raynal, Sasha Levin
From: Ansuel Smith <ansuelsmth@gmail.com>
[ Upstream commit 10f3b4d79958d6f9f71588c6fa862159c83fa80f ]
Add cleanup function as the name variable for the partition name was
allocaed but never freed after the use as the add mtd function
duplicate the name and free the pparts struct as the partition name is
assumed to be static.
The leak was found using kmemleak.
Fixes: 803eb124e1a6 ("mtd: parsers: Add Qcom SMEM parser")
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210525230931.30013-1-ansuelsmth@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/parsers/qcomsmempart.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/mtd/parsers/qcomsmempart.c b/drivers/mtd/parsers/qcomsmempart.c
index d9083308f6ba..06a818cd2433 100644
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -159,6 +159,15 @@ out_free_parts:
return ret;
}
+static void parse_qcomsmem_cleanup(const struct mtd_partition *pparts,
+ int nr_parts)
+{
+ int i;
+
+ for (i = 0; i < nr_parts; i++)
+ kfree(pparts[i].name);
+}
+
static const struct of_device_id qcomsmem_of_match_table[] = {
{ .compatible = "qcom,smem-part" },
{},
@@ -167,6 +176,7 @@ MODULE_DEVICE_TABLE(of, qcomsmem_of_match_table);
static struct mtd_part_parser mtd_parser_qcomsmem = {
.parse_fn = parse_qcomsmem_part,
+ .cleanup = parse_qcomsmem_cleanup,
.name = "qcomsmem",
.of_match_table = qcomsmem_of_match_table,
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 563/700] mtd: rawnand: arasan: Ensure proper configuration for the asserted target
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (561 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 562/700] mtd: parsers: qcom: Fix leaking of partition name Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 564/700] staging: mmal-vchiq: Fix incorrect static vchiq_instance Greg Kroah-Hartman
` (142 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Miquel Raynal, Sasha Levin
From: Miquel Raynal <miquel.raynal@bootlin.com>
[ Upstream commit b5437c7b682c9a505065b4ab4716cdc951dc3c7c ]
The controller being always asserting one CS or the other, there is no
need to actually select the right target before doing a page read/write.
However, the anfc_select_target() helper actually also changes the
timing configuration and clock in the case were two different NAND chips
with different timing requirements would be used. In this situation, we
must ensure proper configuration of the controller by calling it.
As a consequence of this change, the anfc_select_target() helper is
being moved earlier in the driver.
Fixes: 88ffef1b65cf ("mtd: rawnand: arasan: Support the hardware BCH ECC engine")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210526093242.183847-4-miquel.raynal@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/nand/raw/arasan-nand-controller.c | 90 ++++++++++++-------
1 file changed, 57 insertions(+), 33 deletions(-)
diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index 549aac00228e..390f8d719c25 100644
--- a/drivers/mtd/nand/raw/arasan-nand-controller.c
+++ b/drivers/mtd/nand/raw/arasan-nand-controller.c
@@ -273,6 +273,37 @@ static int anfc_pkt_len_config(unsigned int len, unsigned int *steps,
return 0;
}
+static int anfc_select_target(struct nand_chip *chip, int target)
+{
+ struct anand *anand = to_anand(chip);
+ struct arasan_nfc *nfc = to_anfc(chip->controller);
+ int ret;
+
+ /* Update the controller timings and the potential ECC configuration */
+ writel_relaxed(anand->timings, nfc->base + DATA_INTERFACE_REG);
+
+ /* Update clock frequency */
+ if (nfc->cur_clk != anand->clk) {
+ clk_disable_unprepare(nfc->controller_clk);
+ ret = clk_set_rate(nfc->controller_clk, anand->clk);
+ if (ret) {
+ dev_err(nfc->dev, "Failed to change clock rate\n");
+ return ret;
+ }
+
+ ret = clk_prepare_enable(nfc->controller_clk);
+ if (ret) {
+ dev_err(nfc->dev,
+ "Failed to re-enable the controller clock\n");
+ return ret;
+ }
+
+ nfc->cur_clk = anand->clk;
+ }
+
+ return 0;
+}
+
/*
* When using the embedded hardware ECC engine, the controller is in charge of
* feeding the engine with, first, the ECC residue present in the data array.
@@ -401,6 +432,18 @@ static int anfc_read_page_hw_ecc(struct nand_chip *chip, u8 *buf,
return 0;
}
+static int anfc_sel_read_page_hw_ecc(struct nand_chip *chip, u8 *buf,
+ int oob_required, int page)
+{
+ int ret;
+
+ ret = anfc_select_target(chip, chip->cur_cs);
+ if (ret)
+ return ret;
+
+ return anfc_read_page_hw_ecc(chip, buf, oob_required, page);
+};
+
static int anfc_write_page_hw_ecc(struct nand_chip *chip, const u8 *buf,
int oob_required, int page)
{
@@ -461,6 +504,18 @@ static int anfc_write_page_hw_ecc(struct nand_chip *chip, const u8 *buf,
return ret;
}
+static int anfc_sel_write_page_hw_ecc(struct nand_chip *chip, const u8 *buf,
+ int oob_required, int page)
+{
+ int ret;
+
+ ret = anfc_select_target(chip, chip->cur_cs);
+ if (ret)
+ return ret;
+
+ return anfc_write_page_hw_ecc(chip, buf, oob_required, page);
+};
+
/* NAND framework ->exec_op() hooks and related helpers */
static int anfc_parse_instructions(struct nand_chip *chip,
const struct nand_subop *subop,
@@ -753,37 +808,6 @@ static const struct nand_op_parser anfc_op_parser = NAND_OP_PARSER(
NAND_OP_PARSER_PAT_WAITRDY_ELEM(false)),
);
-static int anfc_select_target(struct nand_chip *chip, int target)
-{
- struct anand *anand = to_anand(chip);
- struct arasan_nfc *nfc = to_anfc(chip->controller);
- int ret;
-
- /* Update the controller timings and the potential ECC configuration */
- writel_relaxed(anand->timings, nfc->base + DATA_INTERFACE_REG);
-
- /* Update clock frequency */
- if (nfc->cur_clk != anand->clk) {
- clk_disable_unprepare(nfc->controller_clk);
- ret = clk_set_rate(nfc->controller_clk, anand->clk);
- if (ret) {
- dev_err(nfc->dev, "Failed to change clock rate\n");
- return ret;
- }
-
- ret = clk_prepare_enable(nfc->controller_clk);
- if (ret) {
- dev_err(nfc->dev,
- "Failed to re-enable the controller clock\n");
- return ret;
- }
-
- nfc->cur_clk = anand->clk;
- }
-
- return 0;
-}
-
static int anfc_check_op(struct nand_chip *chip,
const struct nand_operation *op)
{
@@ -1007,8 +1031,8 @@ static int anfc_init_hw_ecc_controller(struct arasan_nfc *nfc,
if (!anand->bch)
return -EINVAL;
- ecc->read_page = anfc_read_page_hw_ecc;
- ecc->write_page = anfc_write_page_hw_ecc;
+ ecc->read_page = anfc_sel_read_page_hw_ecc;
+ ecc->write_page = anfc_sel_write_page_hw_ecc;
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 564/700] staging: mmal-vchiq: Fix incorrect static vchiq_instance.
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (562 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 563/700] mtd: rawnand: arasan: Ensure proper configuration for the asserted target Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 565/700] char: pcmcia: error out if num_bytes_read is greater than 4 in set_protocol() Greg Kroah-Hartman
` (141 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dave Stevenson, Stefan Wahren, Sasha Levin
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
[ Upstream commit afc023da53e46b88552822f2fe035c7129c505a2 ]
For some reason lost in history function vchiq_mmal_init used
a static variable for storing the vchiq_instance.
This value is retrieved from vchiq per instance, so worked fine
until you try to call vchiq_mmal_init multiple times concurrently
when things then go wrong. This seemed to happen quite frequently
if using the cutdown firmware (no MMAL or VCSM services running)
as the vchiq_connect then failed, and one or other vchiq_shutdown
was working on an invalid handle.
Remove the static so that each caller gets a unique vchiq_instance.
Fixes: 7b3ad5abf027 ("staging: Import the BCM2835 MMAL-based V4L2 camera driver.")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1621979857-26754-1-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 9097bcbd67d8..d697ea55a0da 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -1862,7 +1862,7 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance)
int status;
int err = -ENODEV;
struct vchiq_mmal_instance *instance;
- static struct vchiq_instance *vchiq_instance;
+ struct vchiq_instance *vchiq_instance;
struct vchiq_service_params_kernel params = {
.version = VC_MMAL_VER,
.version_min = VC_MMAL_MIN_VER,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 565/700] char: pcmcia: error out if num_bytes_read is greater than 4 in set_protocol()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (563 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 564/700] staging: mmal-vchiq: Fix incorrect static vchiq_instance Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 566/700] firmware: stratix10-svc: Fix a resource leak in an error handling path Greg Kroah-Hartman
` (140 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Yu Kuai, Sasha Levin
From: Yu Kuai <yukuai3@huawei.com>
[ Upstream commit 37188559c610f1b7eec83c8e448936c361c578de ]
Theoretically, it will cause index out of bounds error if
'num_bytes_read' is greater than 4. As we expect it(and was tested)
never to be greater than 4, error out if it happens.
Fixes: c1986ee9bea3 ("[PATCH] New Omnikey Cardman 4000 driver")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20210521120617.138396-1-yukuai3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/pcmcia/cm4000_cs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index 89681f07bc78..9468e9520cee 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -544,6 +544,10 @@ static int set_protocol(struct cm4000_dev *dev, struct ptsreq *ptsreq)
io_read_num_rec_bytes(iobase, &num_bytes_read);
if (num_bytes_read >= 4) {
DEBUGP(2, dev, "NumRecBytes = %i\n", num_bytes_read);
+ if (num_bytes_read > 4) {
+ rc = -EIO;
+ goto exit_setprotocol;
+ }
break;
}
usleep_range(10000, 11000);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 566/700] firmware: stratix10-svc: Fix a resource leak in an error handling path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (564 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 565/700] char: pcmcia: error out if num_bytes_read is greater than 4 in set_protocol() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 567/700] tty: nozomi: Fix the error handling path of nozomi_card_init() Greg Kroah-Hartman
` (139 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit d99247f9b542533ddbf87a3481a05473b8e48194 ]
If an error occurs after a successful 'kfifo_alloc()' call, it must be
undone by a corresponding 'kfifo_free()' call, as already done in the
remove function.
While at it, move the 'platform_device_put()' call to this new error
handling path and explicitly return 0 in the success path.
Fixes: b5dc75c915cd ("firmware: stratix10-svc: extend svc to support new RSU features")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0ca3f3ab139c53e846804455a1e7599ee8ae896a.1621621271.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/firmware/stratix10-svc.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index 3aa489dba30a..2a7687911c09 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -1034,24 +1034,32 @@ static int stratix10_svc_drv_probe(struct platform_device *pdev)
/* add svc client device(s) */
svc = devm_kzalloc(dev, sizeof(*svc), GFP_KERNEL);
- if (!svc)
- return -ENOMEM;
+ if (!svc) {
+ ret = -ENOMEM;
+ goto err_free_kfifo;
+ }
svc->stratix10_svc_rsu = platform_device_alloc(STRATIX10_RSU, 0);
if (!svc->stratix10_svc_rsu) {
dev_err(dev, "failed to allocate %s device\n", STRATIX10_RSU);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err_free_kfifo;
}
ret = platform_device_add(svc->stratix10_svc_rsu);
- if (ret) {
- platform_device_put(svc->stratix10_svc_rsu);
- return ret;
- }
+ if (ret)
+ goto err_put_device;
+
dev_set_drvdata(dev, svc);
pr_info("Intel Service Layer Driver Initialized\n");
+ return 0;
+
+err_put_device:
+ platform_device_put(svc->stratix10_svc_rsu);
+err_free_kfifo:
+ kfifo_free(&controller->svc_fifo);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 567/700] tty: nozomi: Fix the error handling path of nozomi_card_init()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (565 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 566/700] firmware: stratix10-svc: Fix a resource leak in an error handling path Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 568/700] leds: class: The -ENOTSUPP should never be seen by user space Greg Kroah-Hartman
` (138 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Christophe JAILLET,
Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 6ae7d0f5a92b9619f6e3c307ce56b2cefff3f0e9 ]
The error handling path is broken and we may un-register things that have
never been registered.
Update the loops index accordingly.
Fixes: 9842c38e9176 ("kfifo: fix warn_unused_result")
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e28c2e92c7475da25b03d022ea2d6dcf1ba807a2.1621968629.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/nozomi.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index 0b10c2da4364..1076f884d9f9 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -1391,7 +1391,7 @@ static int nozomi_card_init(struct pci_dev *pdev,
NOZOMI_NAME, dc);
if (unlikely(ret)) {
dev_err(&pdev->dev, "can't request irq %d\n", pdev->irq);
- goto err_free_kfifo;
+ goto err_free_all_kfifo;
}
DBG1("base_addr: %p", dc->base_addr);
@@ -1429,13 +1429,15 @@ static int nozomi_card_init(struct pci_dev *pdev,
return 0;
err_free_tty:
- for (i = 0; i < MAX_PORT; ++i) {
+ for (i--; i >= 0; i--) {
tty_unregister_device(ntty_driver, dc->index_start + i);
tty_port_destroy(&dc->port[i].port);
}
free_irq(pdev->irq, dc);
+err_free_all_kfifo:
+ i = MAX_PORT;
err_free_kfifo:
- for (i = 0; i < MAX_PORT; i++)
+ for (i--; i >= PORT_MDM; i--)
kfifo_free(&dc->port[i].fifo_ul);
err_free_sbuf:
kfree(dc->send_buf);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 568/700] leds: class: The -ENOTSUPP should never be seen by user space
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (566 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 567/700] tty: nozomi: Fix the error handling path of nozomi_card_init() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 569/700] leds: lgm: Fix spelling mistake "prepate" -> "prepare" Greg Kroah-Hartman
` (137 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jean-Jacques Hiblot, Andy Shevchenko,
Pavel Machek, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 0ac40af86077982a5346dbc9655172d2775d6b08 ]
Drop the bogus error code and let of_led_get() to take care about absent
of_node.
Fixes: e389240ad992 ("leds: Add managed API to get a LED from a device driver")
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/led-class.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 2e495ff67856..fa3f5f504ff7 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -285,10 +285,6 @@ struct led_classdev *__must_check devm_of_led_get(struct device *dev,
if (!dev)
return ERR_PTR(-EINVAL);
- /* Not using device tree? */
- if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
- return ERR_PTR(-ENOTSUPP);
-
led = of_led_get(dev->of_node, index);
if (IS_ERR(led))
return led;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 569/700] leds: lgm: Fix spelling mistake "prepate" -> "prepare"
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (567 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 568/700] leds: class: The -ENOTSUPP should never be seen by user space Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 570/700] leds: lgm-sso: Fix clock handling Greg Kroah-Hartman
` (136 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Colin Ian King, Pavel Machek, Sasha Levin
From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit ec50536b7840dde085185d9570fa19d0baf5042c ]
There is a spelling mistake in a dev_err error message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/blink/leds-lgm-sso.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/leds/blink/leds-lgm-sso.c b/drivers/leds/blink/leds-lgm-sso.c
index 7d5c9ca007d6..6a63846d10b5 100644
--- a/drivers/leds/blink/leds-lgm-sso.c
+++ b/drivers/leds/blink/leds-lgm-sso.c
@@ -793,7 +793,7 @@ static int intel_sso_led_probe(struct platform_device *pdev)
ret = clk_prepare_enable(priv->gclk);
if (ret) {
- dev_err(dev, "Failed to prepate/enable sso gate clock!\n");
+ dev_err(dev, "Failed to prepare/enable sso gate clock!\n");
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 570/700] leds: lgm-sso: Fix clock handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (568 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 569/700] leds: lgm: Fix spelling mistake "prepate" -> "prepare" Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 571/700] leds: lm3532: select regmap I2C API Greg Kroah-Hartman
` (135 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Amireddy Mallikarjuna reddy,
Andy Shevchenko, Pavel Machek, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit fba8a6f2263bc54683cf3fd75df4dbd5d041c195 ]
The clock handling has a few issues:
- when getting second clock fails, the first one left prepared and enabled
- on ->remove() clocks are unprepared and disabled twice
Fix all these by converting to use bulk clock operations since both clocks
are mandatory.
Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC")
Cc: Amireddy Mallikarjuna reddy <mallikarjunax.reddy@linux.intel.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/blink/leds-lgm-sso.c | 44 ++++++++++++-------------------
1 file changed, 17 insertions(+), 27 deletions(-)
diff --git a/drivers/leds/blink/leds-lgm-sso.c b/drivers/leds/blink/leds-lgm-sso.c
index 6a63846d10b5..7d5f0bf2817a 100644
--- a/drivers/leds/blink/leds-lgm-sso.c
+++ b/drivers/leds/blink/leds-lgm-sso.c
@@ -132,8 +132,7 @@ struct sso_led_priv {
struct regmap *mmap;
struct device *dev;
struct platform_device *pdev;
- struct clk *gclk;
- struct clk *fpid_clk;
+ struct clk_bulk_data clocks[2];
u32 fpid_clkrate;
u32 gptc_clkrate;
u32 freq[MAX_FREQ_RANK];
@@ -763,12 +762,11 @@ static int sso_probe_gpios(struct sso_led_priv *priv)
return sso_gpio_gc_init(dev, priv);
}
-static void sso_clk_disable(void *data)
+static void sso_clock_disable_unprepare(void *data)
{
struct sso_led_priv *priv = data;
- clk_disable_unprepare(priv->fpid_clk);
- clk_disable_unprepare(priv->gclk);
+ clk_bulk_disable_unprepare(ARRAY_SIZE(priv->clocks), priv->clocks);
}
static int intel_sso_led_probe(struct platform_device *pdev)
@@ -785,36 +783,30 @@ static int intel_sso_led_probe(struct platform_device *pdev)
priv->dev = dev;
/* gate clock */
- priv->gclk = devm_clk_get(dev, "sso");
- if (IS_ERR(priv->gclk)) {
- dev_err(dev, "get sso gate clock failed!\n");
- return PTR_ERR(priv->gclk);
- }
+ priv->clocks[0].id = "sso";
+
+ /* fpid clock */
+ priv->clocks[1].id = "fpid";
- ret = clk_prepare_enable(priv->gclk);
+ ret = devm_clk_bulk_get(dev, ARRAY_SIZE(priv->clocks), priv->clocks);
if (ret) {
- dev_err(dev, "Failed to prepare/enable sso gate clock!\n");
+ dev_err(dev, "Getting clocks failed!\n");
return ret;
}
- priv->fpid_clk = devm_clk_get(dev, "fpid");
- if (IS_ERR(priv->fpid_clk)) {
- dev_err(dev, "Failed to get fpid clock!\n");
- return PTR_ERR(priv->fpid_clk);
- }
-
- ret = clk_prepare_enable(priv->fpid_clk);
+ ret = clk_bulk_prepare_enable(ARRAY_SIZE(priv->clocks), priv->clocks);
if (ret) {
- dev_err(dev, "Failed to prepare/enable fpid clock!\n");
+ dev_err(dev, "Failed to prepare and enable clocks!\n");
return ret;
}
- priv->fpid_clkrate = clk_get_rate(priv->fpid_clk);
- ret = devm_add_action_or_reset(dev, sso_clk_disable, priv);
- if (ret) {
- dev_err(dev, "Failed to devm_add_action_or_reset, %d\n", ret);
+ ret = devm_add_action_or_reset(dev, sso_clock_disable_unprepare, priv);
+ if (ret)
return ret;
- }
+
+ priv->fpid_clkrate = clk_get_rate(priv->clocks[1].clk);
+
+ priv->mmap = syscon_node_to_regmap(dev->of_node);
priv->mmap = syscon_node_to_regmap(dev->of_node);
if (IS_ERR(priv->mmap)) {
@@ -859,8 +851,6 @@ static int intel_sso_led_remove(struct platform_device *pdev)
sso_led_shutdown(led);
}
- clk_disable_unprepare(priv->fpid_clk);
- clk_disable_unprepare(priv->gclk);
regmap_exit(priv->mmap);
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 571/700] leds: lm3532: select regmap I2C API
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (569 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 570/700] leds: lgm-sso: Fix clock handling Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 572/700] leds: lm36274: Put fwnode in error case during ->probe() Greg Kroah-Hartman
` (134 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Murphy, Andy Shevchenko,
Pavel Machek, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 99be74f61cb0292b518f5e6d7e5c6611555c2ec7 ]
Regmap APIs should be selected, otherwise link can fail
ERROR: modpost: "__devm_regmap_init_i2c" [drivers/leds/leds-lm3532.ko] undefined!
Fixes: bc1b8492c764 ("leds: lm3532: Introduce the lm3532 LED driver")
Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index b6742b4231bf..258247dd5e3d 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -199,6 +199,7 @@ config LEDS_LM3530
config LEDS_LM3532
tristate "LCD Backlight driver for LM3532"
+ select REGMAP_I2C
depends on LEDS_CLASS
depends on I2C
help
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 572/700] leds: lm36274: Put fwnode in error case during ->probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (570 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 571/700] leds: lm3532: select regmap I2C API Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 573/700] leds: lm3692x: Put fwnode in any " Greg Kroah-Hartman
` (133 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Murphy, Marek Behún,
Andy Shevchenko, Pavel Machek, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 3c5f655c44bb65cb7e3c219d08c130ce5fa45d7f ]
device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.
In the older code the same is implied with device_for_each_child_node().
Fixes: 11e1bbc116a7 ("leds: lm36274: Introduce the TI LM36274 LED driver")
Fixes: a448fcf19c9c ("leds: lm36274: don't iterate through children since there is only one")
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/leds-lm36274.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/leds/leds-lm36274.c b/drivers/leds/leds-lm36274.c
index aadb03468a40..a23a9424c2f3 100644
--- a/drivers/leds/leds-lm36274.c
+++ b/drivers/leds/leds-lm36274.c
@@ -127,6 +127,7 @@ static int lm36274_probe(struct platform_device *pdev)
ret = lm36274_init(chip);
if (ret) {
+ fwnode_handle_put(init_data.fwnode);
dev_err(chip->dev, "Failed to init the device\n");
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 573/700] leds: lm3692x: Put fwnode in any case during ->probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (571 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 572/700] leds: lm36274: Put fwnode in error case during ->probe() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 574/700] leds: lm3697: Dont spam logs when probe is deferred Greg Kroah-Hartman
` (132 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Murphy, Andy Shevchenko,
Pavel Machek, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit f55db1c7fadc2a29c9fa4ff3aec98dbb111f2206 ]
device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.
Fixes: 9a5c1c64ac0a ("leds: lm3692x: Change DT calls to fwnode calls")
Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/leds-lm3692x.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
index e945de45388c..55e6443997ec 100644
--- a/drivers/leds/leds-lm3692x.c
+++ b/drivers/leds/leds-lm3692x.c
@@ -435,6 +435,7 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
ret = fwnode_property_read_u32(child, "reg", &led->led_enable);
if (ret) {
+ fwnode_handle_put(child);
dev_err(&led->client->dev, "reg DT property missing\n");
return ret;
}
@@ -449,12 +450,11 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
ret = devm_led_classdev_register_ext(&led->client->dev, &led->led_dev,
&init_data);
- if (ret) {
+ if (ret)
dev_err(&led->client->dev, "led register err: %d\n", ret);
- return ret;
- }
- return 0;
+ fwnode_handle_put(init_data.fwnode);
+ return ret;
}
static int lm3692x_probe(struct i2c_client *client,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 574/700] leds: lm3697: Dont spam logs when probe is deferred
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (572 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 573/700] leds: lm3692x: Put fwnode in any " Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 575/700] leds: lp50xx: Put fwnode in error case during ->probe() Greg Kroah-Hartman
` (131 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Murphy, Andy Shevchenko,
Pavel Machek, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit 807553f8bf4afa673750e52905e0f9488179112f ]
When requesting GPIO line the probe can be deferred.
In such case don't spam logs with an error message.
This can be achieved by switching to dev_err_probe().
Fixes: 5c1d824cda9f ("leds: lm3697: Introduce the lm3697 driver")
Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/leds-lm3697.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/leds/leds-lm3697.c b/drivers/leds/leds-lm3697.c
index 7d216cdb91a8..912e8bb22a99 100644
--- a/drivers/leds/leds-lm3697.c
+++ b/drivers/leds/leds-lm3697.c
@@ -203,11 +203,9 @@ static int lm3697_probe_dt(struct lm3697 *priv)
priv->enable_gpio = devm_gpiod_get_optional(dev, "enable",
GPIOD_OUT_LOW);
- if (IS_ERR(priv->enable_gpio)) {
- ret = PTR_ERR(priv->enable_gpio);
- dev_err(dev, "Failed to get enable gpio: %d\n", ret);
- return ret;
- }
+ if (IS_ERR(priv->enable_gpio))
+ return dev_err_probe(dev, PTR_ERR(priv->enable_gpio),
+ "Failed to get enable GPIO\n");
priv->regulator = devm_regulator_get(dev, "vled");
if (IS_ERR(priv->regulator))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 575/700] leds: lp50xx: Put fwnode in error case during ->probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (573 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 574/700] leds: lm3697: Dont spam logs when probe is deferred Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:10 ` [PATCH 5.12 576/700] scsi: FlashPoint: Rename si_flags field Greg Kroah-Hartman
` (130 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dan Murphy, Andy Shevchenko,
Pavel Machek, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit f1e1d532da7e6ef355528a22fb97d9a8fbf76c4e ]
fwnode_for_each_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.
OTOH, the successful iteration will drop reference count under the hood, no need
to do it twice.
Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/leds-lp50xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/leds/leds-lp50xx.c b/drivers/leds/leds-lp50xx.c
index 06230614fdc5..401df1e2e05d 100644
--- a/drivers/leds/leds-lp50xx.c
+++ b/drivers/leds/leds-lp50xx.c
@@ -490,6 +490,7 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
ret = fwnode_property_read_u32(led_node, "color",
&color_id);
if (ret) {
+ fwnode_handle_put(led_node);
dev_err(priv->dev, "Cannot read color\n");
goto child_out;
}
@@ -512,7 +513,6 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
goto child_out;
}
i++;
- fwnode_handle_put(child);
}
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 576/700] scsi: FlashPoint: Rename si_flags field
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (574 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 575/700] leds: lp50xx: Put fwnode in error case during ->probe() Greg Kroah-Hartman
@ 2021-07-12 6:10 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 577/700] scsi: iscsi: Stop queueing during ep_disconnect Greg Kroah-Hartman
` (129 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:10 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, James E.J. Bottomley,
Martin K. Petersen, Christoph Hellwig, Jens Axboe,
Hannes Reinecke, Khalid Aziz, Khalid Aziz, kernel test robot,
Randy Dunlap, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 4d431153e751caa93f3b7e6f6313446974e92253 ]
The BusLogic driver has build errors on ia64 due to a name collision (in
the #included FlashPoint.c file). Rename the struct field in struct
sccb_mgr_info from si_flags to si_mflags (manager flags) to mend the build.
This is the first problem. There are 50+ others after this one:
In file included from ../include/uapi/linux/signal.h:6,
from ../include/linux/signal_types.h:10,
from ../include/linux/sched.h:29,
from ../include/linux/hardirq.h:9,
from ../include/linux/interrupt.h:11,
from ../drivers/scsi/BusLogic.c:27:
../arch/ia64/include/uapi/asm/siginfo.h:15:27: error: expected ':', ',', ';', '}' or '__attribute__' before '.' token
15 | #define si_flags _sifields._sigfault._flags
| ^
../drivers/scsi/FlashPoint.c:43:6: note: in expansion of macro 'si_flags'
43 | u16 si_flags;
| ^~~~~~~~
In file included from ../drivers/scsi/BusLogic.c:51:
../drivers/scsi/FlashPoint.c: In function 'FlashPoint_ProbeHostAdapter':
../drivers/scsi/FlashPoint.c:1076:11: error: 'struct sccb_mgr_info' has no member named '_sifields'
1076 | pCardInfo->si_flags = 0x0000;
| ^~
../drivers/scsi/FlashPoint.c:1079:12: error: 'struct sccb_mgr_info' has no member named '_sifields'
Link: https://lore.kernel.org/r/20210529234857.6870-1-rdunlap@infradead.org
Fixes: 391e2f25601e ("[SCSI] BusLogic: Port driver to 64-bit.")
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Khalid Aziz <khalid@gonehiking.org>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/FlashPoint.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/drivers/scsi/FlashPoint.c b/drivers/scsi/FlashPoint.c
index 24ace1824048..ec8a621d232d 100644
--- a/drivers/scsi/FlashPoint.c
+++ b/drivers/scsi/FlashPoint.c
@@ -40,7 +40,7 @@ struct sccb_mgr_info {
u16 si_per_targ_ultra_nego;
u16 si_per_targ_no_disc;
u16 si_per_targ_wide_nego;
- u16 si_flags;
+ u16 si_mflags;
unsigned char si_card_family;
unsigned char si_bustype;
unsigned char si_card_model[3];
@@ -1073,22 +1073,22 @@ static int FlashPoint_ProbeHostAdapter(struct sccb_mgr_info *pCardInfo)
ScamFlg =
(unsigned char)FPT_utilEERead(ioport, SCAM_CONFIG / 2);
- pCardInfo->si_flags = 0x0000;
+ pCardInfo->si_mflags = 0x0000;
if (i & 0x01)
- pCardInfo->si_flags |= SCSI_PARITY_ENA;
+ pCardInfo->si_mflags |= SCSI_PARITY_ENA;
if (!(i & 0x02))
- pCardInfo->si_flags |= SOFT_RESET;
+ pCardInfo->si_mflags |= SOFT_RESET;
if (i & 0x10)
- pCardInfo->si_flags |= EXTENDED_TRANSLATION;
+ pCardInfo->si_mflags |= EXTENDED_TRANSLATION;
if (ScamFlg & SCAM_ENABLED)
- pCardInfo->si_flags |= FLAG_SCAM_ENABLED;
+ pCardInfo->si_mflags |= FLAG_SCAM_ENABLED;
if (ScamFlg & SCAM_LEVEL2)
- pCardInfo->si_flags |= FLAG_SCAM_LEVEL2;
+ pCardInfo->si_mflags |= FLAG_SCAM_LEVEL2;
j = (RD_HARPOON(ioport + hp_bm_ctrl) & ~SCSI_TERM_ENA_L);
if (i & 0x04) {
@@ -1104,7 +1104,7 @@ static int FlashPoint_ProbeHostAdapter(struct sccb_mgr_info *pCardInfo)
if (!(RD_HARPOON(ioport + hp_page_ctrl) & NARROW_SCSI_CARD))
- pCardInfo->si_flags |= SUPPORT_16TAR_32LUN;
+ pCardInfo->si_mflags |= SUPPORT_16TAR_32LUN;
pCardInfo->si_card_family = HARPOON_FAMILY;
pCardInfo->si_bustype = BUSTYPE_PCI;
@@ -1140,15 +1140,15 @@ static int FlashPoint_ProbeHostAdapter(struct sccb_mgr_info *pCardInfo)
if (pCardInfo->si_card_model[1] == '3') {
if (RD_HARPOON(ioport + hp_ee_ctrl) & BIT(7))
- pCardInfo->si_flags |= LOW_BYTE_TERM;
+ pCardInfo->si_mflags |= LOW_BYTE_TERM;
} else if (pCardInfo->si_card_model[2] == '0') {
temp = RD_HARPOON(ioport + hp_xfer_pad);
WR_HARPOON(ioport + hp_xfer_pad, (temp & ~BIT(4)));
if (RD_HARPOON(ioport + hp_ee_ctrl) & BIT(7))
- pCardInfo->si_flags |= LOW_BYTE_TERM;
+ pCardInfo->si_mflags |= LOW_BYTE_TERM;
WR_HARPOON(ioport + hp_xfer_pad, (temp | BIT(4)));
if (RD_HARPOON(ioport + hp_ee_ctrl) & BIT(7))
- pCardInfo->si_flags |= HIGH_BYTE_TERM;
+ pCardInfo->si_mflags |= HIGH_BYTE_TERM;
WR_HARPOON(ioport + hp_xfer_pad, temp);
} else {
temp = RD_HARPOON(ioport + hp_ee_ctrl);
@@ -1166,9 +1166,9 @@ static int FlashPoint_ProbeHostAdapter(struct sccb_mgr_info *pCardInfo)
WR_HARPOON(ioport + hp_ee_ctrl, temp);
WR_HARPOON(ioport + hp_xfer_pad, temp2);
if (!(temp3 & BIT(7)))
- pCardInfo->si_flags |= LOW_BYTE_TERM;
+ pCardInfo->si_mflags |= LOW_BYTE_TERM;
if (!(temp3 & BIT(6)))
- pCardInfo->si_flags |= HIGH_BYTE_TERM;
+ pCardInfo->si_mflags |= HIGH_BYTE_TERM;
}
ARAM_ACCESS(ioport);
@@ -1275,7 +1275,7 @@ static void *FlashPoint_HardwareResetHostAdapter(struct sccb_mgr_info
WR_HARPOON(ioport + hp_arb_id, pCardInfo->si_id);
CurrCard->ourId = pCardInfo->si_id;
- i = (unsigned char)pCardInfo->si_flags;
+ i = (unsigned char)pCardInfo->si_mflags;
if (i & SCSI_PARITY_ENA)
WR_HARPOON(ioport + hp_portctrl_1, (HOST_MODE8 | CHK_SCSI_P));
@@ -1289,14 +1289,14 @@ static void *FlashPoint_HardwareResetHostAdapter(struct sccb_mgr_info
j |= SCSI_TERM_ENA_H;
WR_HARPOON(ioport + hp_ee_ctrl, j);
- if (!(pCardInfo->si_flags & SOFT_RESET)) {
+ if (!(pCardInfo->si_mflags & SOFT_RESET)) {
FPT_sresb(ioport, thisCard);
FPT_scini(thisCard, pCardInfo->si_id, 0);
}
- if (pCardInfo->si_flags & POST_ALL_UNDERRRUNS)
+ if (pCardInfo->si_mflags & POST_ALL_UNDERRRUNS)
CurrCard->globalFlags |= F_NO_FILTER;
if (pCurrNvRam) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 577/700] scsi: iscsi: Stop queueing during ep_disconnect
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (575 preceding siblings ...)
2021-07-12 6:10 ` [PATCH 5.12 576/700] scsi: FlashPoint: Rename si_flags field Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 578/700] scsi: iscsi: Force immediate failure during shutdown Greg Kroah-Hartman
` (128 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lee Duncan, Mike Christie,
Martin K. Petersen, Sasha Levin
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit 891e2639deae721dc43764a44fa255890dc34313 ]
During ep_disconnect we have been doing iscsi_suspend_tx/queue to block new
I/O but every driver except cxgbi and iscsi_tcp can still get I/O from
__iscsi_conn_send_pdu() if we haven't called iscsi_conn_failure() before
ep_disconnect. This could happen if we were terminating the session, and
the logout timed out before it was even sent to libiscsi.
Fix the issue by adding a helper which reverses the bind_conn call that
allows new I/O to be queued. Drivers implementing ep_disconnect can use this
to make sure new I/O is not queued to them when handling the disconnect.
Link: https://lore.kernel.org/r/20210525181821.7617-3-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/iser/iscsi_iser.c | 1 +
drivers/scsi/be2iscsi/be_main.c | 1 +
drivers/scsi/bnx2i/bnx2i_iscsi.c | 1 +
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c | 1 +
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 1 +
drivers/scsi/libiscsi.c | 70 +++++++++++++++++++++---
drivers/scsi/qedi/qedi_iscsi.c | 1 +
drivers/scsi/qla4xxx/ql4_os.c | 1 +
drivers/scsi/scsi_transport_iscsi.c | 10 +++-
include/scsi/libiscsi.h | 1 +
include/scsi/scsi_transport_iscsi.h | 1 +
11 files changed, 78 insertions(+), 11 deletions(-)
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 8fcaa1136f2c..6baebcb6d14d 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -1002,6 +1002,7 @@ static struct iscsi_transport iscsi_iser_transport = {
/* connection management */
.create_conn = iscsi_iser_conn_create,
.bind_conn = iscsi_iser_conn_bind,
+ .unbind_conn = iscsi_conn_unbind,
.destroy_conn = iscsi_conn_teardown,
.attr_is_visible = iser_attr_is_visible,
.set_param = iscsi_iser_set_param,
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 90fcddb76f46..e9658a67d9da 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5809,6 +5809,7 @@ struct iscsi_transport beiscsi_iscsi_transport = {
.destroy_session = beiscsi_session_destroy,
.create_conn = beiscsi_conn_create,
.bind_conn = beiscsi_conn_bind,
+ .unbind_conn = iscsi_conn_unbind,
.destroy_conn = iscsi_conn_teardown,
.attr_is_visible = beiscsi_attr_is_visible,
.set_iface_param = beiscsi_iface_set_param,
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index 1e6d8f62ea3c..b6c1da46d582 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -2276,6 +2276,7 @@ struct iscsi_transport bnx2i_iscsi_transport = {
.destroy_session = bnx2i_session_destroy,
.create_conn = bnx2i_conn_create,
.bind_conn = bnx2i_conn_bind,
+ .unbind_conn = iscsi_conn_unbind,
.destroy_conn = bnx2i_conn_destroy,
.attr_is_visible = bnx2i_attr_is_visible,
.set_param = iscsi_set_param,
diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
index 37d99357120f..edcd3fab6973 100644
--- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
+++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
@@ -117,6 +117,7 @@ static struct iscsi_transport cxgb3i_iscsi_transport = {
/* connection management */
.create_conn = cxgbi_create_conn,
.bind_conn = cxgbi_bind_conn,
+ .unbind_conn = iscsi_conn_unbind,
.destroy_conn = iscsi_tcp_conn_teardown,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index 2c3491528d42..efb3e2b3398e 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -134,6 +134,7 @@ static struct iscsi_transport cxgb4i_iscsi_transport = {
/* connection management */
.create_conn = cxgbi_create_conn,
.bind_conn = cxgbi_bind_conn,
+ .unbind_conn = iscsi_conn_unbind,
.destroy_conn = iscsi_tcp_conn_teardown,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 4834219497ee..2aaf83678654 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1387,23 +1387,32 @@ void iscsi_session_failure(struct iscsi_session *session,
}
EXPORT_SYMBOL_GPL(iscsi_session_failure);
-void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err)
+static bool iscsi_set_conn_failed(struct iscsi_conn *conn)
{
struct iscsi_session *session = conn->session;
- spin_lock_bh(&session->frwd_lock);
- if (session->state == ISCSI_STATE_FAILED) {
- spin_unlock_bh(&session->frwd_lock);
- return;
- }
+ if (session->state == ISCSI_STATE_FAILED)
+ return false;
if (conn->stop_stage == 0)
session->state = ISCSI_STATE_FAILED;
- spin_unlock_bh(&session->frwd_lock);
set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
- iscsi_conn_error_event(conn->cls_conn, err);
+ return true;
+}
+
+void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err)
+{
+ struct iscsi_session *session = conn->session;
+ bool needs_evt;
+
+ spin_lock_bh(&session->frwd_lock);
+ needs_evt = iscsi_set_conn_failed(conn);
+ spin_unlock_bh(&session->frwd_lock);
+
+ if (needs_evt)
+ iscsi_conn_error_event(conn->cls_conn, err);
}
EXPORT_SYMBOL_GPL(iscsi_conn_failure);
@@ -2180,6 +2189,51 @@ done:
spin_unlock(&session->frwd_lock);
}
+/**
+ * iscsi_conn_unbind - prevent queueing to conn.
+ * @cls_conn: iscsi conn ep is bound to.
+ * @is_active: is the conn in use for boot or is this for EH/termination
+ *
+ * This must be called by drivers implementing the ep_disconnect callout.
+ * It disables queueing to the connection from libiscsi in preparation for
+ * an ep_disconnect call.
+ */
+void iscsi_conn_unbind(struct iscsi_cls_conn *cls_conn, bool is_active)
+{
+ struct iscsi_session *session;
+ struct iscsi_conn *conn;
+
+ if (!cls_conn)
+ return;
+
+ conn = cls_conn->dd_data;
+ session = conn->session;
+ /*
+ * Wait for iscsi_eh calls to exit. We don't wait for the tmf to
+ * complete or timeout. The caller just wants to know what's running
+ * is everything that needs to be cleaned up, and no cmds will be
+ * queued.
+ */
+ mutex_lock(&session->eh_mutex);
+
+ iscsi_suspend_queue(conn);
+ iscsi_suspend_tx(conn);
+
+ spin_lock_bh(&session->frwd_lock);
+ if (!is_active) {
+ /*
+ * if logout timed out before userspace could even send a PDU
+ * the state might still be in ISCSI_STATE_LOGGED_IN and
+ * allowing new cmds and TMFs.
+ */
+ if (session->state == ISCSI_STATE_LOGGED_IN)
+ iscsi_set_conn_failed(conn);
+ }
+ spin_unlock_bh(&session->frwd_lock);
+ mutex_unlock(&session->eh_mutex);
+}
+EXPORT_SYMBOL_GPL(iscsi_conn_unbind);
+
static void iscsi_prep_abort_task_pdu(struct iscsi_task *task,
struct iscsi_tm *hdr)
{
diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
index 08c05403cd72..ef16537c523c 100644
--- a/drivers/scsi/qedi/qedi_iscsi.c
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -1401,6 +1401,7 @@ struct iscsi_transport qedi_iscsi_transport = {
.destroy_session = qedi_session_destroy,
.create_conn = qedi_conn_create,
.bind_conn = qedi_conn_bind,
+ .unbind_conn = iscsi_conn_unbind,
.start_conn = qedi_conn_start,
.stop_conn = iscsi_conn_stop,
.destroy_conn = qedi_conn_destroy,
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 7bd9a4a04ad5..ff663cb330c2 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -259,6 +259,7 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
.start_conn = qla4xxx_conn_start,
.create_conn = qla4xxx_conn_create,
.bind_conn = qla4xxx_conn_bind,
+ .unbind_conn = iscsi_conn_unbind,
.stop_conn = iscsi_conn_stop,
.destroy_conn = qla4xxx_conn_destroy,
.set_param = iscsi_set_param,
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 441f0152193f..82491343e94a 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2964,7 +2964,7 @@ release_host:
}
static int iscsi_if_ep_disconnect(struct iscsi_transport *transport,
- u64 ep_handle)
+ u64 ep_handle, bool is_active)
{
struct iscsi_cls_conn *conn;
struct iscsi_endpoint *ep;
@@ -2981,6 +2981,8 @@ static int iscsi_if_ep_disconnect(struct iscsi_transport *transport,
conn->ep = NULL;
mutex_unlock(&conn->ep_mutex);
conn->state = ISCSI_CONN_FAILED;
+
+ transport->unbind_conn(conn, is_active);
}
transport->ep_disconnect(ep);
@@ -3012,7 +3014,8 @@ iscsi_if_transport_ep(struct iscsi_transport *transport,
break;
case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
rc = iscsi_if_ep_disconnect(transport,
- ev->u.ep_disconnect.ep_handle);
+ ev->u.ep_disconnect.ep_handle,
+ false);
break;
}
return rc;
@@ -3737,7 +3740,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
conn = iscsi_conn_lookup(ev->u.b_conn.sid, ev->u.b_conn.cid);
if (conn && conn->ep)
- iscsi_if_ep_disconnect(transport, conn->ep->id);
+ iscsi_if_ep_disconnect(transport, conn->ep->id, true);
if (!session || !conn) {
err = -EINVAL;
@@ -4656,6 +4659,7 @@ iscsi_register_transport(struct iscsi_transport *tt)
int err;
BUG_ON(!tt);
+ WARN_ON(tt->ep_disconnect && !tt->unbind_conn);
priv = iscsi_if_transport_lookup(tt);
if (priv)
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 02f966e9358f..091f284bd6e9 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -424,6 +424,7 @@ extern int iscsi_conn_start(struct iscsi_cls_conn *);
extern void iscsi_conn_stop(struct iscsi_cls_conn *, int);
extern int iscsi_conn_bind(struct iscsi_cls_session *, struct iscsi_cls_conn *,
int);
+extern void iscsi_conn_unbind(struct iscsi_cls_conn *cls_conn, bool is_active);
extern void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err);
extern void iscsi_session_failure(struct iscsi_session *session,
enum iscsi_err err);
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index fc5a39839b4b..8874016b3c9a 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -82,6 +82,7 @@ struct iscsi_transport {
void (*destroy_session) (struct iscsi_cls_session *session);
struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess,
uint32_t cid);
+ void (*unbind_conn) (struct iscsi_cls_conn *conn, bool is_active);
int (*bind_conn) (struct iscsi_cls_session *session,
struct iscsi_cls_conn *cls_conn,
uint64_t transport_eph, int is_leading);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 578/700] scsi: iscsi: Force immediate failure during shutdown
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (576 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 577/700] scsi: iscsi: Stop queueing during ep_disconnect Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 579/700] scsi: iscsi: Use system_unbound_wq for destroy_work Greg Kroah-Hartman
` (127 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mike Christie, Martin K. Petersen,
Sasha Levin
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit 06c203a5566beecebb1f8838d026de8a61c8df71 ]
If the system is not up, we can just fail immediately since iscsid is not
going to ever answer our netlink events. We are already setting the
recovery_tmo to 0, but by passing stop_conn STOP_CONN_TERM we never will
block the session and start the recovery timer, because for that flag
userspace will do the unbind and destroy events which would remove the
devices and wake up and kill the eh.
Since the conn is dead and the system is going dowm this just has us use
STOP_CONN_RECOVER with recovery_tmo=0 so we fail immediately. However, if
the user has set the recovery_tmo=-1 we let the system hang like they
requested since they might have used that setting for specific reasons
(one known reason is for buggy cluster software).
Link: https://lore.kernel.org/r/20210525181821.7617-5-michael.christie@oracle.com
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/scsi_transport_iscsi.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 82491343e94a..d134156d67f0 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2513,11 +2513,17 @@ static void stop_conn_work_fn(struct work_struct *work)
session = iscsi_session_lookup(sid);
if (session) {
if (system_state != SYSTEM_RUNNING) {
- session->recovery_tmo = 0;
- iscsi_if_stop_conn(conn, STOP_CONN_TERM);
- } else {
- iscsi_if_stop_conn(conn, STOP_CONN_RECOVER);
+ /*
+ * If the user has set up for the session to
+ * never timeout then hang like they wanted.
+ * For all other cases fail right away since
+ * userspace is not going to relogin.
+ */
+ if (session->recovery_tmo > 0)
+ session->recovery_tmo = 0;
}
+
+ iscsi_if_stop_conn(conn, STOP_CONN_RECOVER);
}
list_del_init(&conn->conn_list_err);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 579/700] scsi: iscsi: Use system_unbound_wq for destroy_work
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (577 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 578/700] scsi: iscsi: Force immediate failure during shutdown Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 580/700] scsi: iscsi: Rel ref after iscsi_lookup_endpoint() Greg Kroah-Hartman
` (126 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lee Duncan, Mike Christie,
Martin K. Petersen, Sasha Levin
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit b25b957d2db1585602c2c70fdf4261a5641fe6b7 ]
Use the system_unbound_wq for async session destruction. We don't need a
dedicated workqueue for async session destruction because:
1. perf does not seem to be an issue since we only allow 1 active work.
2. it does not have deps with other system works and we can run them in
parallel with each other.
Link: https://lore.kernel.org/r/20210525181821.7617-6-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/scsi_transport_iscsi.c | 15 +--------------
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index d134156d67f0..2eb77f69fe0c 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -95,8 +95,6 @@ static DECLARE_WORK(stop_conn_work, stop_conn_work_fn);
static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
static struct workqueue_struct *iscsi_eh_timer_workq;
-static struct workqueue_struct *iscsi_destroy_workq;
-
static DEFINE_IDA(iscsi_sess_ida);
/*
* list of registered transports and lock that must
@@ -3724,7 +3722,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
list_del_init(&session->sess_list);
spin_unlock_irqrestore(&sesslock, flags);
- queue_work(iscsi_destroy_workq, &session->destroy_work);
+ queue_work(system_unbound_wq, &session->destroy_work);
}
break;
case ISCSI_UEVENT_UNBIND_SESSION:
@@ -4820,18 +4818,8 @@ static __init int iscsi_transport_init(void)
goto release_nls;
}
- iscsi_destroy_workq = alloc_workqueue("%s",
- WQ_SYSFS | __WQ_LEGACY | WQ_MEM_RECLAIM | WQ_UNBOUND,
- 1, "iscsi_destroy");
- if (!iscsi_destroy_workq) {
- err = -ENOMEM;
- goto destroy_wq;
- }
-
return 0;
-destroy_wq:
- destroy_workqueue(iscsi_eh_timer_workq);
release_nls:
netlink_kernel_release(nls);
unregister_flashnode_bus:
@@ -4853,7 +4841,6 @@ unregister_transport_class:
static void __exit iscsi_transport_exit(void)
{
- destroy_workqueue(iscsi_destroy_workq);
destroy_workqueue(iscsi_eh_timer_workq);
netlink_kernel_release(nls);
bus_unregister(&iscsi_flashnode_bus);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 580/700] scsi: iscsi: Rel ref after iscsi_lookup_endpoint()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (578 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 579/700] scsi: iscsi: Use system_unbound_wq for destroy_work Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 581/700] scsi: iscsi: Fix in-kernel conn failure handling Greg Kroah-Hartman
` (125 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lee Duncan, Mike Christie,
Martin K. Petersen, Sasha Levin
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit 9e5fe1700896c85040943fdc0d3fee0dd3e0d36f ]
Subsequent commits allow the kernel to do ep_disconnect. In that case we
will have to get a proper refcount on the ep so one thread does not delete
it from under another.
Link: https://lore.kernel.org/r/20210525181821.7617-7-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/ulp/iser/iscsi_iser.c | 1 +
drivers/scsi/be2iscsi/be_iscsi.c | 19 ++++++++++++------
drivers/scsi/bnx2i/bnx2i_iscsi.c | 23 +++++++++++++++-------
drivers/scsi/cxgbi/libcxgbi.c | 12 ++++++++----
drivers/scsi/qedi/qedi_iscsi.c | 25 +++++++++++++++++-------
drivers/scsi/qla4xxx/ql4_os.c | 1 +
drivers/scsi/scsi_transport_iscsi.c | 25 ++++++++++++++++--------
include/scsi/scsi_transport_iscsi.h | 1 +
8 files changed, 75 insertions(+), 32 deletions(-)
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 6baebcb6d14d..776e46ee95da 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -506,6 +506,7 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session,
iser_conn->iscsi_conn = conn;
out:
+ iscsi_put_endpoint(ep);
mutex_unlock(&iser_conn->state_mutex);
return error;
}
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index a13c203ef7a9..c4881657a807 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -182,6 +182,7 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
struct beiscsi_endpoint *beiscsi_ep;
struct iscsi_endpoint *ep;
uint16_t cri_index;
+ int rc = 0;
ep = iscsi_lookup_endpoint(transport_fd);
if (!ep)
@@ -189,15 +190,17 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
beiscsi_ep = ep->dd_data;
- if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
- return -EINVAL;
+ if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) {
+ rc = -EINVAL;
+ goto put_ep;
+ }
if (beiscsi_ep->phba != phba) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
"BS_%d : beiscsi_ep->hba=%p not equal to phba=%p\n",
beiscsi_ep->phba, phba);
-
- return -EEXIST;
+ rc = -EEXIST;
+ goto put_ep;
}
cri_index = BE_GET_CRI_FROM_CID(beiscsi_ep->ep_cid);
if (phba->conn_table[cri_index]) {
@@ -209,7 +212,8 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
beiscsi_ep->ep_cid,
beiscsi_conn,
phba->conn_table[cri_index]);
- return -EINVAL;
+ rc = -EINVAL;
+ goto put_ep;
}
}
@@ -226,7 +230,10 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
"BS_%d : cid %d phba->conn_table[%u]=%p\n",
beiscsi_ep->ep_cid, cri_index, beiscsi_conn);
phba->conn_table[cri_index] = beiscsi_conn;
- return 0;
+
+put_ep:
+ iscsi_put_endpoint(ep);
+ return rc;
}
static int beiscsi_iface_create_ipv4(struct beiscsi_hba *phba)
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index b6c1da46d582..2ad85c6b99fd 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -1420,17 +1420,23 @@ static int bnx2i_conn_bind(struct iscsi_cls_session *cls_session,
* Forcefully terminate all in progress connection recovery at the
* earliest, either in bind(), send_pdu(LOGIN), or conn_start()
*/
- if (bnx2i_adapter_ready(hba))
- return -EIO;
+ if (bnx2i_adapter_ready(hba)) {
+ ret_code = -EIO;
+ goto put_ep;
+ }
bnx2i_ep = ep->dd_data;
if ((bnx2i_ep->state == EP_STATE_TCP_FIN_RCVD) ||
- (bnx2i_ep->state == EP_STATE_TCP_RST_RCVD))
+ (bnx2i_ep->state == EP_STATE_TCP_RST_RCVD)) {
/* Peer disconnect via' FIN or RST */
- return -EINVAL;
+ ret_code = -EINVAL;
+ goto put_ep;
+ }
- if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
- return -EINVAL;
+ if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) {
+ ret_code = -EINVAL;
+ goto put_ep;
+ }
if (bnx2i_ep->hba != hba) {
/* Error - TCP connection does not belong to this device
@@ -1441,7 +1447,8 @@ static int bnx2i_conn_bind(struct iscsi_cls_session *cls_session,
iscsi_conn_printk(KERN_ALERT, cls_conn->dd_data,
"belong to hba (%s)\n",
hba->netdev->name);
- return -EEXIST;
+ ret_code = -EEXIST;
+ goto put_ep;
}
bnx2i_ep->conn = bnx2i_conn;
bnx2i_conn->ep = bnx2i_ep;
@@ -1458,6 +1465,8 @@ static int bnx2i_conn_bind(struct iscsi_cls_session *cls_session,
bnx2i_put_rq_buf(bnx2i_conn, 0);
bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE);
+put_ep:
+ iscsi_put_endpoint(ep);
return ret_code;
}
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index f078b3c4e083..f6bcae829c29 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -2690,11 +2690,13 @@ int cxgbi_bind_conn(struct iscsi_cls_session *cls_session,
err = csk->cdev->csk_ddp_setup_pgidx(csk, csk->tid,
ppm->tformat.pgsz_idx_dflt);
if (err < 0)
- return err;
+ goto put_ep;
err = iscsi_conn_bind(cls_session, cls_conn, is_leading);
- if (err)
- return -EINVAL;
+ if (err) {
+ err = -EINVAL;
+ goto put_ep;
+ }
/* calculate the tag idx bits needed for this conn based on cmds_max */
cconn->task_idx_bits = (__ilog2_u32(conn->session->cmds_max - 1)) + 1;
@@ -2715,7 +2717,9 @@ int cxgbi_bind_conn(struct iscsi_cls_session *cls_session,
/* init recv engine */
iscsi_tcp_hdr_recv_prep(tcp_conn);
- return 0;
+put_ep:
+ iscsi_put_endpoint(ep);
+ return err;
}
EXPORT_SYMBOL_GPL(cxgbi_bind_conn);
diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
index ef16537c523c..087c7ff28cd5 100644
--- a/drivers/scsi/qedi/qedi_iscsi.c
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -377,6 +377,7 @@ static int qedi_conn_bind(struct iscsi_cls_session *cls_session,
struct qedi_ctx *qedi = iscsi_host_priv(shost);
struct qedi_endpoint *qedi_ep;
struct iscsi_endpoint *ep;
+ int rc = 0;
ep = iscsi_lookup_endpoint(transport_fd);
if (!ep)
@@ -384,11 +385,16 @@ static int qedi_conn_bind(struct iscsi_cls_session *cls_session,
qedi_ep = ep->dd_data;
if ((qedi_ep->state == EP_STATE_TCP_FIN_RCVD) ||
- (qedi_ep->state == EP_STATE_TCP_RST_RCVD))
- return -EINVAL;
+ (qedi_ep->state == EP_STATE_TCP_RST_RCVD)) {
+ rc = -EINVAL;
+ goto put_ep;
+ }
+
+ if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) {
+ rc = -EINVAL;
+ goto put_ep;
+ }
- if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
- return -EINVAL;
qedi_ep->conn = qedi_conn;
qedi_conn->ep = qedi_ep;
@@ -398,13 +404,18 @@ static int qedi_conn_bind(struct iscsi_cls_session *cls_session,
qedi_conn->cmd_cleanup_req = 0;
qedi_conn->cmd_cleanup_cmpl = 0;
- if (qedi_bind_conn_to_iscsi_cid(qedi, qedi_conn))
- return -EINVAL;
+ if (qedi_bind_conn_to_iscsi_cid(qedi, qedi_conn)) {
+ rc = -EINVAL;
+ goto put_ep;
+ }
+
spin_lock_init(&qedi_conn->tmf_work_lock);
INIT_LIST_HEAD(&qedi_conn->tmf_work_list);
init_waitqueue_head(&qedi_conn->wait_queue);
- return 0;
+put_ep:
+ iscsi_put_endpoint(ep);
+ return rc;
}
static int qedi_iscsi_update_conn(struct qedi_ctx *qedi,
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index ff663cb330c2..ea128da08537 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -3235,6 +3235,7 @@ static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
conn = cls_conn->dd_data;
qla_conn = conn->dd_data;
qla_conn->qla_ep = ep->dd_data;
+ iscsi_put_endpoint(ep);
return 0;
}
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 2eb77f69fe0c..bab6654d8ee9 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -266,9 +266,20 @@ void iscsi_destroy_endpoint(struct iscsi_endpoint *ep)
}
EXPORT_SYMBOL_GPL(iscsi_destroy_endpoint);
+void iscsi_put_endpoint(struct iscsi_endpoint *ep)
+{
+ put_device(&ep->dev);
+}
+EXPORT_SYMBOL_GPL(iscsi_put_endpoint);
+
+/**
+ * iscsi_lookup_endpoint - get ep from handle
+ * @handle: endpoint handle
+ *
+ * Caller must do a iscsi_put_endpoint.
+ */
struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle)
{
- struct iscsi_endpoint *ep;
struct device *dev;
dev = class_find_device(&iscsi_endpoint_class, NULL, &handle,
@@ -276,13 +287,7 @@ struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle)
if (!dev)
return NULL;
- ep = iscsi_dev_to_endpoint(dev);
- /*
- * we can drop this now because the interface will prevent
- * removals and lookups from racing.
- */
- put_device(dev);
- return ep;
+ return iscsi_dev_to_endpoint(dev);
}
EXPORT_SYMBOL_GPL(iscsi_lookup_endpoint);
@@ -2990,6 +2995,7 @@ static int iscsi_if_ep_disconnect(struct iscsi_transport *transport,
}
transport->ep_disconnect(ep);
+ iscsi_put_endpoint(ep);
return 0;
}
@@ -3015,6 +3021,7 @@ iscsi_if_transport_ep(struct iscsi_transport *transport,
ev->r.retcode = transport->ep_poll(ep,
ev->u.ep_poll.timeout_ms);
+ iscsi_put_endpoint(ep);
break;
case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
rc = iscsi_if_ep_disconnect(transport,
@@ -3698,6 +3705,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
ev->u.c_bound_session.initial_cmdsn,
ev->u.c_bound_session.cmds_max,
ev->u.c_bound_session.queue_depth);
+ iscsi_put_endpoint(ep);
break;
case ISCSI_UEVENT_DESTROY_SESSION:
session = iscsi_session_lookup(ev->u.d_session.sid);
@@ -3769,6 +3777,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
mutex_lock(&conn->ep_mutex);
conn->ep = ep;
mutex_unlock(&conn->ep_mutex);
+ iscsi_put_endpoint(ep);
} else
iscsi_cls_conn_printk(KERN_ERR, conn,
"Could not set ep conn "
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 8874016b3c9a..d36a72cf049f 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -442,6 +442,7 @@ extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time);
extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size);
extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep);
extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle);
+extern void iscsi_put_endpoint(struct iscsi_endpoint *ep);
extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd);
extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost,
struct iscsi_transport *t,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 581/700] scsi: iscsi: Fix in-kernel conn failure handling
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (579 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 580/700] scsi: iscsi: Rel ref after iscsi_lookup_endpoint() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 582/700] scsi: iscsi: Flush block work before unblock Greg Kroah-Hartman
` (124 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lee Duncan, Mike Christie,
Martin K. Petersen, Sasha Levin
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit 23d6fefbb3f6b1cc29794427588b470ed06ff64e ]
Commit 0ab710458da1 ("scsi: iscsi: Perform connection failure entirely in
kernel space") has the following regressions/bugs that this patch fixes:
1. It can return cmds to upper layers like dm-multipath where that can
retry them. After they are successful the fs/app can send new I/O to the
same sectors, but we've left the cmds running in FW or in the net layer.
We need to be calling ep_disconnect if userspace is not up.
This patch only fixes the issue for offload drivers. iscsi_tcp will be
fixed in separate commit because it doesn't have a ep_disconnect call.
2. The drivers that implement ep_disconnect expect that it's called before
conn_stop. Besides crashes, if the cleanup_task callout is called before
ep_disconnect it might free up driver/card resources for session1 then they
could be allocated for session2. But because the driver's ep_disconnect is
not called it has not cleaned up the firmware so the card is still using
the resources for the original cmd.
3. The stop_conn_work_fn can run after userspace has done its recovery and
we are happily using the session. We will then end up with various bugs
depending on what is going on at the time.
We may also run stop_conn_work_fn late after userspace has called stop_conn
and ep_disconnect and is now going to call start/bind conn. If
stop_conn_work_fn runs after bind but before start, we would leave the conn
in a unbound but sort of started state where IO might be allowed even
though the drivers have been set in a state where they no longer expect
I/O.
4. Returning -EAGAIN in iscsi_if_destroy_conn if we haven't yet run the in
kernel stop_conn function is breaking userspace. We should have been doing
this for the caller.
Link: https://lore.kernel.org/r/20210525181821.7617-8-michael.christie@oracle.com
Fixes: 0ab710458da1 ("scsi: iscsi: Perform connection failure entirely in kernel space")
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/scsi_transport_iscsi.c | 471 ++++++++++++++++------------
include/scsi/scsi_transport_iscsi.h | 10 +-
2 files changed, 283 insertions(+), 198 deletions(-)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index bab6654d8ee9..b8a93e607891 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -86,15 +86,11 @@ struct iscsi_internal {
struct transport_container session_cont;
};
-/* Worker to perform connection failure on unresponsive connections
- * completely in kernel space.
- */
-static void stop_conn_work_fn(struct work_struct *work);
-static DECLARE_WORK(stop_conn_work, stop_conn_work_fn);
-
static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
static struct workqueue_struct *iscsi_eh_timer_workq;
+static struct workqueue_struct *iscsi_conn_cleanup_workq;
+
static DEFINE_IDA(iscsi_sess_ida);
/*
* list of registered transports and lock that must
@@ -1623,12 +1619,6 @@ static DECLARE_TRANSPORT_CLASS(iscsi_connection_class,
static struct sock *nls;
static DEFINE_MUTEX(rx_queue_mutex);
-/*
- * conn_mutex protects the {start,bind,stop,destroy}_conn from racing
- * against the kernel stop_connection recovery mechanism
- */
-static DEFINE_MUTEX(conn_mutex);
-
static LIST_HEAD(sesslist);
static DEFINE_SPINLOCK(sesslock);
static LIST_HEAD(connlist);
@@ -2245,6 +2235,123 @@ void iscsi_remove_session(struct iscsi_cls_session *session)
}
EXPORT_SYMBOL_GPL(iscsi_remove_session);
+static void iscsi_stop_conn(struct iscsi_cls_conn *conn, int flag)
+{
+ ISCSI_DBG_TRANS_CONN(conn, "Stopping conn.\n");
+
+ switch (flag) {
+ case STOP_CONN_RECOVER:
+ conn->state = ISCSI_CONN_FAILED;
+ break;
+ case STOP_CONN_TERM:
+ conn->state = ISCSI_CONN_DOWN;
+ break;
+ default:
+ iscsi_cls_conn_printk(KERN_ERR, conn, "invalid stop flag %d\n",
+ flag);
+ return;
+ }
+
+ conn->transport->stop_conn(conn, flag);
+ ISCSI_DBG_TRANS_CONN(conn, "Stopping conn done.\n");
+}
+
+static int iscsi_if_stop_conn(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ int flag = ev->u.stop_conn.flag;
+ struct iscsi_cls_conn *conn;
+
+ conn = iscsi_conn_lookup(ev->u.stop_conn.sid, ev->u.stop_conn.cid);
+ if (!conn)
+ return -EINVAL;
+
+ ISCSI_DBG_TRANS_CONN(conn, "iscsi if conn stop.\n");
+ /*
+ * If this is a termination we have to call stop_conn with that flag
+ * so the correct states get set. If we haven't run the work yet try to
+ * avoid the extra run.
+ */
+ if (flag == STOP_CONN_TERM) {
+ cancel_work_sync(&conn->cleanup_work);
+ iscsi_stop_conn(conn, flag);
+ } else {
+ /*
+ * Figure out if it was the kernel or userspace initiating this.
+ */
+ if (!test_and_set_bit(ISCSI_CLS_CONN_BIT_CLEANUP, &conn->flags)) {
+ iscsi_stop_conn(conn, flag);
+ } else {
+ ISCSI_DBG_TRANS_CONN(conn,
+ "flush kernel conn cleanup.\n");
+ flush_work(&conn->cleanup_work);
+ }
+ /*
+ * Only clear for recovery to avoid extra cleanup runs during
+ * termination.
+ */
+ clear_bit(ISCSI_CLS_CONN_BIT_CLEANUP, &conn->flags);
+ }
+ ISCSI_DBG_TRANS_CONN(conn, "iscsi if conn stop done.\n");
+ return 0;
+}
+
+static void iscsi_ep_disconnect(struct iscsi_cls_conn *conn, bool is_active)
+{
+ struct iscsi_cls_session *session = iscsi_conn_to_session(conn);
+ struct iscsi_endpoint *ep;
+
+ ISCSI_DBG_TRANS_CONN(conn, "disconnect ep.\n");
+ conn->state = ISCSI_CONN_FAILED;
+
+ if (!conn->ep || !session->transport->ep_disconnect)
+ return;
+
+ ep = conn->ep;
+ conn->ep = NULL;
+
+ session->transport->unbind_conn(conn, is_active);
+ session->transport->ep_disconnect(ep);
+ ISCSI_DBG_TRANS_CONN(conn, "disconnect ep done.\n");
+}
+
+static void iscsi_cleanup_conn_work_fn(struct work_struct *work)
+{
+ struct iscsi_cls_conn *conn = container_of(work, struct iscsi_cls_conn,
+ cleanup_work);
+ struct iscsi_cls_session *session = iscsi_conn_to_session(conn);
+
+ mutex_lock(&conn->ep_mutex);
+ /*
+ * If we are not at least bound there is nothing for us to do. Userspace
+ * will do a ep_disconnect call if offload is used, but will not be
+ * doing a stop since there is nothing to clean up, so we have to clear
+ * the cleanup bit here.
+ */
+ if (conn->state != ISCSI_CONN_BOUND && conn->state != ISCSI_CONN_UP) {
+ ISCSI_DBG_TRANS_CONN(conn, "Got error while conn is already failed. Ignoring.\n");
+ clear_bit(ISCSI_CLS_CONN_BIT_CLEANUP, &conn->flags);
+ mutex_unlock(&conn->ep_mutex);
+ return;
+ }
+
+ iscsi_ep_disconnect(conn, false);
+
+ if (system_state != SYSTEM_RUNNING) {
+ /*
+ * If the user has set up for the session to never timeout
+ * then hang like they wanted. For all other cases fail right
+ * away since userspace is not going to relogin.
+ */
+ if (session->recovery_tmo > 0)
+ session->recovery_tmo = 0;
+ }
+
+ iscsi_stop_conn(conn, STOP_CONN_RECOVER);
+ mutex_unlock(&conn->ep_mutex);
+ ISCSI_DBG_TRANS_CONN(conn, "cleanup done.\n");
+}
+
void iscsi_free_session(struct iscsi_cls_session *session)
{
ISCSI_DBG_TRANS_SESSION(session, "Freeing session\n");
@@ -2284,7 +2391,7 @@ iscsi_create_conn(struct iscsi_cls_session *session, int dd_size, uint32_t cid)
mutex_init(&conn->ep_mutex);
INIT_LIST_HEAD(&conn->conn_list);
- INIT_LIST_HEAD(&conn->conn_list_err);
+ INIT_WORK(&conn->cleanup_work, iscsi_cleanup_conn_work_fn);
conn->transport = transport;
conn->cid = cid;
conn->state = ISCSI_CONN_DOWN;
@@ -2341,7 +2448,6 @@ int iscsi_destroy_conn(struct iscsi_cls_conn *conn)
spin_lock_irqsave(&connlock, flags);
list_del(&conn->conn_list);
- list_del(&conn->conn_list_err);
spin_unlock_irqrestore(&connlock, flags);
transport_unregister_device(&conn->dev);
@@ -2456,83 +2562,6 @@ int iscsi_offload_mesg(struct Scsi_Host *shost,
}
EXPORT_SYMBOL_GPL(iscsi_offload_mesg);
-/*
- * This can be called without the rx_queue_mutex, if invoked by the kernel
- * stop work. But, in that case, it is guaranteed not to race with
- * iscsi_destroy by conn_mutex.
- */
-static void iscsi_if_stop_conn(struct iscsi_cls_conn *conn, int flag)
-{
- /*
- * It is important that this path doesn't rely on
- * rx_queue_mutex, otherwise, a thread doing allocation on a
- * start_session/start_connection could sleep waiting on a
- * writeback to a failed iscsi device, that cannot be recovered
- * because the lock is held. If we don't hold it here, the
- * kernel stop_conn_work_fn has a chance to stop the broken
- * session and resolve the allocation.
- *
- * Still, the user invoked .stop_conn() needs to be serialized
- * with stop_conn_work_fn by a private mutex. Not pretty, but
- * it works.
- */
- mutex_lock(&conn_mutex);
- switch (flag) {
- case STOP_CONN_RECOVER:
- conn->state = ISCSI_CONN_FAILED;
- break;
- case STOP_CONN_TERM:
- conn->state = ISCSI_CONN_DOWN;
- break;
- default:
- iscsi_cls_conn_printk(KERN_ERR, conn,
- "invalid stop flag %d\n", flag);
- goto unlock;
- }
-
- conn->transport->stop_conn(conn, flag);
-unlock:
- mutex_unlock(&conn_mutex);
-}
-
-static void stop_conn_work_fn(struct work_struct *work)
-{
- struct iscsi_cls_conn *conn, *tmp;
- unsigned long flags;
- LIST_HEAD(recovery_list);
-
- spin_lock_irqsave(&connlock, flags);
- if (list_empty(&connlist_err)) {
- spin_unlock_irqrestore(&connlock, flags);
- return;
- }
- list_splice_init(&connlist_err, &recovery_list);
- spin_unlock_irqrestore(&connlock, flags);
-
- list_for_each_entry_safe(conn, tmp, &recovery_list, conn_list_err) {
- uint32_t sid = iscsi_conn_get_sid(conn);
- struct iscsi_cls_session *session;
-
- session = iscsi_session_lookup(sid);
- if (session) {
- if (system_state != SYSTEM_RUNNING) {
- /*
- * If the user has set up for the session to
- * never timeout then hang like they wanted.
- * For all other cases fail right away since
- * userspace is not going to relogin.
- */
- if (session->recovery_tmo > 0)
- session->recovery_tmo = 0;
- }
-
- iscsi_if_stop_conn(conn, STOP_CONN_RECOVER);
- }
-
- list_del_init(&conn->conn_list_err);
- }
-}
-
void iscsi_conn_error_event(struct iscsi_cls_conn *conn, enum iscsi_err error)
{
struct nlmsghdr *nlh;
@@ -2540,12 +2569,9 @@ void iscsi_conn_error_event(struct iscsi_cls_conn *conn, enum iscsi_err error)
struct iscsi_uevent *ev;
struct iscsi_internal *priv;
int len = nlmsg_total_size(sizeof(*ev));
- unsigned long flags;
- spin_lock_irqsave(&connlock, flags);
- list_add(&conn->conn_list_err, &connlist_err);
- spin_unlock_irqrestore(&connlock, flags);
- queue_work(system_unbound_wq, &stop_conn_work);
+ if (!test_and_set_bit(ISCSI_CLS_CONN_BIT_CLEANUP, &conn->flags))
+ queue_work(iscsi_conn_cleanup_workq, &conn->cleanup_work);
priv = iscsi_if_transport_lookup(conn->transport);
if (!priv)
@@ -2875,26 +2901,17 @@ static int
iscsi_if_destroy_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev)
{
struct iscsi_cls_conn *conn;
- unsigned long flags;
conn = iscsi_conn_lookup(ev->u.d_conn.sid, ev->u.d_conn.cid);
if (!conn)
return -EINVAL;
- spin_lock_irqsave(&connlock, flags);
- if (!list_empty(&conn->conn_list_err)) {
- spin_unlock_irqrestore(&connlock, flags);
- return -EAGAIN;
- }
- spin_unlock_irqrestore(&connlock, flags);
-
+ ISCSI_DBG_TRANS_CONN(conn, "Flushing cleanup during destruction\n");
+ flush_work(&conn->cleanup_work);
ISCSI_DBG_TRANS_CONN(conn, "Destroying transport conn\n");
- mutex_lock(&conn_mutex);
if (transport->destroy_conn)
transport->destroy_conn(conn);
- mutex_unlock(&conn_mutex);
-
return 0;
}
@@ -2973,7 +2990,7 @@ release_host:
}
static int iscsi_if_ep_disconnect(struct iscsi_transport *transport,
- u64 ep_handle, bool is_active)
+ u64 ep_handle)
{
struct iscsi_cls_conn *conn;
struct iscsi_endpoint *ep;
@@ -2984,17 +3001,30 @@ static int iscsi_if_ep_disconnect(struct iscsi_transport *transport,
ep = iscsi_lookup_endpoint(ep_handle);
if (!ep)
return -EINVAL;
+
conn = ep->conn;
- if (conn) {
- mutex_lock(&conn->ep_mutex);
- conn->ep = NULL;
+ if (!conn) {
+ /*
+ * conn was not even bound yet, so we can't get iscsi conn
+ * failures yet.
+ */
+ transport->ep_disconnect(ep);
+ goto put_ep;
+ }
+
+ mutex_lock(&conn->ep_mutex);
+ /* Check if this was a conn error and the kernel took ownership */
+ if (test_bit(ISCSI_CLS_CONN_BIT_CLEANUP, &conn->flags)) {
+ ISCSI_DBG_TRANS_CONN(conn, "flush kernel conn cleanup.\n");
mutex_unlock(&conn->ep_mutex);
- conn->state = ISCSI_CONN_FAILED;
- transport->unbind_conn(conn, is_active);
+ flush_work(&conn->cleanup_work);
+ goto put_ep;
}
- transport->ep_disconnect(ep);
+ iscsi_ep_disconnect(conn, false);
+ mutex_unlock(&conn->ep_mutex);
+put_ep:
iscsi_put_endpoint(ep);
return 0;
}
@@ -3025,8 +3055,7 @@ iscsi_if_transport_ep(struct iscsi_transport *transport,
break;
case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
rc = iscsi_if_ep_disconnect(transport,
- ev->u.ep_disconnect.ep_handle,
- false);
+ ev->u.ep_disconnect.ep_handle);
break;
}
return rc;
@@ -3653,18 +3682,129 @@ exit_host_stats:
return err;
}
+static int iscsi_if_transport_conn(struct iscsi_transport *transport,
+ struct nlmsghdr *nlh)
+{
+ struct iscsi_uevent *ev = nlmsg_data(nlh);
+ struct iscsi_cls_session *session;
+ struct iscsi_cls_conn *conn = NULL;
+ struct iscsi_endpoint *ep;
+ uint32_t pdu_len;
+ int err = 0;
+
+ switch (nlh->nlmsg_type) {
+ case ISCSI_UEVENT_CREATE_CONN:
+ return iscsi_if_create_conn(transport, ev);
+ case ISCSI_UEVENT_DESTROY_CONN:
+ return iscsi_if_destroy_conn(transport, ev);
+ case ISCSI_UEVENT_STOP_CONN:
+ return iscsi_if_stop_conn(transport, ev);
+ }
+
+ /*
+ * The following cmds need to be run under the ep_mutex so in kernel
+ * conn cleanup (ep_disconnect + unbind and conn) is not done while
+ * these are running. They also must not run if we have just run a conn
+ * cleanup because they would set the state in a way that might allow
+ * IO or send IO themselves.
+ */
+ switch (nlh->nlmsg_type) {
+ case ISCSI_UEVENT_START_CONN:
+ conn = iscsi_conn_lookup(ev->u.start_conn.sid,
+ ev->u.start_conn.cid);
+ break;
+ case ISCSI_UEVENT_BIND_CONN:
+ conn = iscsi_conn_lookup(ev->u.b_conn.sid, ev->u.b_conn.cid);
+ break;
+ case ISCSI_UEVENT_SEND_PDU:
+ conn = iscsi_conn_lookup(ev->u.send_pdu.sid, ev->u.send_pdu.cid);
+ break;
+ }
+
+ if (!conn)
+ return -EINVAL;
+
+ mutex_lock(&conn->ep_mutex);
+ if (test_bit(ISCSI_CLS_CONN_BIT_CLEANUP, &conn->flags)) {
+ mutex_unlock(&conn->ep_mutex);
+ ev->r.retcode = -ENOTCONN;
+ return 0;
+ }
+
+ switch (nlh->nlmsg_type) {
+ case ISCSI_UEVENT_BIND_CONN:
+ if (conn->ep) {
+ /*
+ * For offload boot support where iscsid is restarted
+ * during the pivot root stage, the ep will be intact
+ * here when the new iscsid instance starts up and
+ * reconnects.
+ */
+ iscsi_ep_disconnect(conn, true);
+ }
+
+ session = iscsi_session_lookup(ev->u.b_conn.sid);
+ if (!session) {
+ err = -EINVAL;
+ break;
+ }
+
+ ev->r.retcode = transport->bind_conn(session, conn,
+ ev->u.b_conn.transport_eph,
+ ev->u.b_conn.is_leading);
+ if (!ev->r.retcode)
+ conn->state = ISCSI_CONN_BOUND;
+
+ if (ev->r.retcode || !transport->ep_connect)
+ break;
+
+ ep = iscsi_lookup_endpoint(ev->u.b_conn.transport_eph);
+ if (ep) {
+ ep->conn = conn;
+ conn->ep = ep;
+ iscsi_put_endpoint(ep);
+ } else {
+ err = -ENOTCONN;
+ iscsi_cls_conn_printk(KERN_ERR, conn,
+ "Could not set ep conn binding\n");
+ }
+ break;
+ case ISCSI_UEVENT_START_CONN:
+ ev->r.retcode = transport->start_conn(conn);
+ if (!ev->r.retcode)
+ conn->state = ISCSI_CONN_UP;
+ break;
+ case ISCSI_UEVENT_SEND_PDU:
+ pdu_len = nlh->nlmsg_len - sizeof(*nlh) - sizeof(*ev);
+
+ if ((ev->u.send_pdu.hdr_size > pdu_len) ||
+ (ev->u.send_pdu.data_size > (pdu_len - ev->u.send_pdu.hdr_size))) {
+ err = -EINVAL;
+ break;
+ }
+
+ ev->r.retcode = transport->send_pdu(conn,
+ (struct iscsi_hdr *)((char *)ev + sizeof(*ev)),
+ (char *)ev + sizeof(*ev) + ev->u.send_pdu.hdr_size,
+ ev->u.send_pdu.data_size);
+ break;
+ default:
+ err = -ENOSYS;
+ }
+
+ mutex_unlock(&conn->ep_mutex);
+ return err;
+}
static int
iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
{
int err = 0;
u32 portid;
- u32 pdu_len;
struct iscsi_uevent *ev = nlmsg_data(nlh);
struct iscsi_transport *transport = NULL;
struct iscsi_internal *priv;
struct iscsi_cls_session *session;
- struct iscsi_cls_conn *conn;
struct iscsi_endpoint *ep = NULL;
if (!netlink_capable(skb, CAP_SYS_ADMIN))
@@ -3741,90 +3881,16 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
else
err = -EINVAL;
break;
- case ISCSI_UEVENT_CREATE_CONN:
- err = iscsi_if_create_conn(transport, ev);
- break;
- case ISCSI_UEVENT_DESTROY_CONN:
- err = iscsi_if_destroy_conn(transport, ev);
- break;
- case ISCSI_UEVENT_BIND_CONN:
- session = iscsi_session_lookup(ev->u.b_conn.sid);
- conn = iscsi_conn_lookup(ev->u.b_conn.sid, ev->u.b_conn.cid);
-
- if (conn && conn->ep)
- iscsi_if_ep_disconnect(transport, conn->ep->id, true);
-
- if (!session || !conn) {
- err = -EINVAL;
- break;
- }
-
- mutex_lock(&conn_mutex);
- ev->r.retcode = transport->bind_conn(session, conn,
- ev->u.b_conn.transport_eph,
- ev->u.b_conn.is_leading);
- if (!ev->r.retcode)
- conn->state = ISCSI_CONN_BOUND;
- mutex_unlock(&conn_mutex);
-
- if (ev->r.retcode || !transport->ep_connect)
- break;
-
- ep = iscsi_lookup_endpoint(ev->u.b_conn.transport_eph);
- if (ep) {
- ep->conn = conn;
-
- mutex_lock(&conn->ep_mutex);
- conn->ep = ep;
- mutex_unlock(&conn->ep_mutex);
- iscsi_put_endpoint(ep);
- } else
- iscsi_cls_conn_printk(KERN_ERR, conn,
- "Could not set ep conn "
- "binding\n");
- break;
case ISCSI_UEVENT_SET_PARAM:
err = iscsi_set_param(transport, ev);
break;
- case ISCSI_UEVENT_START_CONN:
- conn = iscsi_conn_lookup(ev->u.start_conn.sid, ev->u.start_conn.cid);
- if (conn) {
- mutex_lock(&conn_mutex);
- ev->r.retcode = transport->start_conn(conn);
- if (!ev->r.retcode)
- conn->state = ISCSI_CONN_UP;
- mutex_unlock(&conn_mutex);
- }
- else
- err = -EINVAL;
- break;
+ case ISCSI_UEVENT_CREATE_CONN:
+ case ISCSI_UEVENT_DESTROY_CONN:
case ISCSI_UEVENT_STOP_CONN:
- conn = iscsi_conn_lookup(ev->u.stop_conn.sid, ev->u.stop_conn.cid);
- if (conn)
- iscsi_if_stop_conn(conn, ev->u.stop_conn.flag);
- else
- err = -EINVAL;
- break;
+ case ISCSI_UEVENT_START_CONN:
+ case ISCSI_UEVENT_BIND_CONN:
case ISCSI_UEVENT_SEND_PDU:
- pdu_len = nlh->nlmsg_len - sizeof(*nlh) - sizeof(*ev);
-
- if ((ev->u.send_pdu.hdr_size > pdu_len) ||
- (ev->u.send_pdu.data_size > (pdu_len - ev->u.send_pdu.hdr_size))) {
- err = -EINVAL;
- break;
- }
-
- conn = iscsi_conn_lookup(ev->u.send_pdu.sid, ev->u.send_pdu.cid);
- if (conn) {
- mutex_lock(&conn_mutex);
- ev->r.retcode = transport->send_pdu(conn,
- (struct iscsi_hdr*)((char*)ev + sizeof(*ev)),
- (char*)ev + sizeof(*ev) + ev->u.send_pdu.hdr_size,
- ev->u.send_pdu.data_size);
- mutex_unlock(&conn_mutex);
- }
- else
- err = -EINVAL;
+ err = iscsi_if_transport_conn(transport, nlh);
break;
case ISCSI_UEVENT_GET_STATS:
err = iscsi_if_get_stats(transport, nlh);
@@ -4827,8 +4893,18 @@ static __init int iscsi_transport_init(void)
goto release_nls;
}
+ iscsi_conn_cleanup_workq = alloc_workqueue("%s",
+ WQ_SYSFS | WQ_MEM_RECLAIM | WQ_UNBOUND, 0,
+ "iscsi_conn_cleanup");
+ if (!iscsi_conn_cleanup_workq) {
+ err = -ENOMEM;
+ goto destroy_wq;
+ }
+
return 0;
+destroy_wq:
+ destroy_workqueue(iscsi_eh_timer_workq);
release_nls:
netlink_kernel_release(nls);
unregister_flashnode_bus:
@@ -4850,6 +4926,7 @@ unregister_transport_class:
static void __exit iscsi_transport_exit(void)
{
+ destroy_workqueue(iscsi_conn_cleanup_workq);
destroy_workqueue(iscsi_eh_timer_workq);
netlink_kernel_release(nls);
bus_unregister(&iscsi_flashnode_bus);
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index d36a72cf049f..3974329d4d02 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -197,15 +197,23 @@ enum iscsi_connection_state {
ISCSI_CONN_BOUND,
};
+#define ISCSI_CLS_CONN_BIT_CLEANUP 1
+
struct iscsi_cls_conn {
struct list_head conn_list; /* item in connlist */
- struct list_head conn_list_err; /* item in connlist_err */
void *dd_data; /* LLD private data */
struct iscsi_transport *transport;
uint32_t cid; /* connection id */
+ /*
+ * This protects the conn startup and binding/unbinding of the ep to
+ * the conn. Unbinding includes ep_disconnect and stop_conn.
+ */
struct mutex ep_mutex;
struct iscsi_endpoint *ep;
+ unsigned long flags;
+ struct work_struct cleanup_work;
+
struct device dev; /* sysfs transport/container device */
enum iscsi_connection_state state;
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 582/700] scsi: iscsi: Flush block work before unblock
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (580 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 581/700] scsi: iscsi: Fix in-kernel conn failure handling Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 583/700] mfd: mp2629: Select MFD_CORE to fix build error Greg Kroah-Hartman
` (123 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Lee Duncan, Mike Christie,
Martin K. Petersen, Sasha Levin
From: Mike Christie <michael.christie@oracle.com>
[ Upstream commit 7ce9fc5ecde0d8bd64c29baee6c5e3ce7074ec9a ]
We set the max_active iSCSI EH works to 1, so all work is going to execute
in order by default. However, userspace can now override this in sysfs. If
max_active > 1, we can end up with the block_work on CPU1 and
iscsi_unblock_session running the unblock_work on CPU2 and the session and
target/device state will end up out of sync with each other.
This adds a flush of the block_work in iscsi_unblock_session.
Link: https://lore.kernel.org/r/20210525181821.7617-17-michael.christie@oracle.com
Fixes: 1d726aa6ef57 ("scsi: iscsi: Optimize work queue flush use")
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/scsi_transport_iscsi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index b8a93e607891..6ce1cc992d1d 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1969,6 +1969,8 @@ static void __iscsi_unblock_session(struct work_struct *work)
*/
void iscsi_unblock_session(struct iscsi_cls_session *session)
{
+ flush_work(&session->block_work);
+
queue_work(iscsi_eh_timer_workq, &session->unblock_work);
/*
* Blocking the session can be done from any context so we only
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 583/700] mfd: mp2629: Select MFD_CORE to fix build error
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (581 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 582/700] scsi: iscsi: Flush block work before unblock Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 584/700] mfd: rn5t618: Fix IRQ trigger by changing it to level mode Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Lee Jones, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit a933272041d852a1ef1c85f0c18b93e9999a41fa ]
MFD_MP2629 should select MFD_CORE to a prevent build error:
ERROR: modpost: "devm_mfd_add_devices" [drivers/mfd/mp2629.ko] undefined!
Fixes: 06081646450e ("mfd: mp2629: Add support for mps battery charger")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index b74efa469e90..8b421b21a232 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -465,6 +465,7 @@ config MFD_MP2629
tristate "Monolithic Power Systems MP2629 ADC and Battery charger"
depends on I2C
select REGMAP_I2C
+ select MFD_CORE
help
Select this option to enable support for Monolithic Power Systems
battery charger. This provides ADC, thermal and battery charger power
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 584/700] mfd: rn5t618: Fix IRQ trigger by changing it to level mode
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (582 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 583/700] mfd: mp2629: Select MFD_CORE to fix build error Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 585/700] fsi: core: Fix return of error values on failures Greg Kroah-Hartman
` (121 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andreas Kemnade, Lee Jones, Sasha Levin
From: Andreas Kemnade <andreas@kemnade.info>
[ Upstream commit a1649a5260631979c68e5b2012f60f90300e646f ]
During more massive generation of interrupts, the IRQ got stuck,
and the subdevices did not see any new interrupts. That happens
especially at wonky USB supply in combination with ADC reads.
To fix that trigger the IRQ at level low instead of falling edge.
Fixes: 0c81604516af ("mfd: rn5t618: Add IRQ support")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/rn5t618.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
index dc452df1f1bf..652a5e60067f 100644
--- a/drivers/mfd/rn5t618.c
+++ b/drivers/mfd/rn5t618.c
@@ -104,7 +104,7 @@ static int rn5t618_irq_init(struct rn5t618 *rn5t618)
ret = devm_regmap_add_irq_chip(rn5t618->dev, rn5t618->regmap,
rn5t618->irq,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
0, irq_chip, &rn5t618->irq_data);
if (ret)
dev_err(rn5t618->dev, "Failed to register IRQ chip\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 585/700] fsi: core: Fix return of error values on failures
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (583 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 584/700] mfd: rn5t618: Fix IRQ trigger by changing it to level mode Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 586/700] fsi: scom: Reset the FSI2PIB engine for any error Greg Kroah-Hartman
` (120 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Colin Ian King, Jeremy Kerr,
Joel Stanley, Sasha Levin
From: Colin Ian King <colin.king@canonical.com>
[ Upstream commit 910810945707fe9877ca86a0dca4e585fd05e37b ]
Currently the cfam_read and cfam_write functions return the provided
number of bytes given in the count parameter and not the error return
code in variable rc, hence all failures of read/writes are being
silently ignored. Fix this by returning the error code in rc.
Addresses-Coverity: ("Unused value")
Fixes: d1dcd6782576 ("fsi: Add cfam char devices")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jeremy Kerr <jk@ozlabs.org>
Link: https://lore.kernel.org/r/20210603122812.83587-1-colin.king@canonical.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 4e60e84cd17a..59ddc9fd5bca 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -724,7 +724,7 @@ static ssize_t cfam_read(struct file *filep, char __user *buf, size_t count,
rc = count;
fail:
*offset = off;
- return count;
+ return rc;
}
static ssize_t cfam_write(struct file *filep, const char __user *buf,
@@ -761,7 +761,7 @@ static ssize_t cfam_write(struct file *filep, const char __user *buf,
rc = count;
fail:
*offset = off;
- return count;
+ return rc;
}
static loff_t cfam_llseek(struct file *file, loff_t offset, int whence)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 586/700] fsi: scom: Reset the FSI2PIB engine for any error
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (584 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 585/700] fsi: core: Fix return of error values on failures Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 587/700] fsi: occ: Dont accept response from un-initialized OCC Greg Kroah-Hartman
` (119 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eddie James, Joel Stanley, Sasha Levin
From: Eddie James <eajames@linux.ibm.com>
[ Upstream commit a5c317dac5567206ca7b6bc9d008dd6890c8bced ]
The error bits in the FSI2PIB status are only cleared by a reset. So
the driver needs to perform a reset after seeing any of the FSI2PIB
errors, otherwise subsequent operations will also look like failures.
Fixes: 6b293258cded ("fsi: scom: Major overhaul")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210329151344.14246-1-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-scom.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/fsi/fsi-scom.c b/drivers/fsi/fsi-scom.c
index b45bfab7b7f5..75d1389e2626 100644
--- a/drivers/fsi/fsi-scom.c
+++ b/drivers/fsi/fsi-scom.c
@@ -38,9 +38,10 @@
#define SCOM_STATUS_PIB_RESP_MASK 0x00007000
#define SCOM_STATUS_PIB_RESP_SHIFT 12
-#define SCOM_STATUS_ANY_ERR (SCOM_STATUS_PROTECTION | \
- SCOM_STATUS_PARITY | \
- SCOM_STATUS_PIB_ABORT | \
+#define SCOM_STATUS_FSI2PIB_ERROR (SCOM_STATUS_PROTECTION | \
+ SCOM_STATUS_PARITY | \
+ SCOM_STATUS_PIB_ABORT)
+#define SCOM_STATUS_ANY_ERR (SCOM_STATUS_FSI2PIB_ERROR | \
SCOM_STATUS_PIB_RESP_MASK)
/* SCOM address encodings */
#define XSCOM_ADDR_IND_FLAG BIT_ULL(63)
@@ -240,13 +241,14 @@ static int handle_fsi2pib_status(struct scom_device *scom, uint32_t status)
{
uint32_t dummy = -1;
- if (status & SCOM_STATUS_PROTECTION)
- return -EPERM;
- if (status & SCOM_STATUS_PARITY) {
+ if (status & SCOM_STATUS_FSI2PIB_ERROR)
fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG, &dummy,
sizeof(uint32_t));
+
+ if (status & SCOM_STATUS_PROTECTION)
+ return -EPERM;
+ if (status & SCOM_STATUS_PARITY)
return -EIO;
- }
/* Return -EBUSY on PIB abort to force a retry */
if (status & SCOM_STATUS_PIB_ABORT)
return -EBUSY;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 587/700] fsi: occ: Dont accept response from un-initialized OCC
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (585 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 586/700] fsi: scom: Reset the FSI2PIB engine for any error Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 588/700] fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE Greg Kroah-Hartman
` (118 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Eddie James, Joel Stanley, Sasha Levin
From: Eddie James <eajames@linux.ibm.com>
[ Upstream commit 8a4659be08576141f47d47d94130eb148cb5f0df ]
If the OCC is not initialized and responds as such, the driver
should continue waiting for a valid response until the timeout
expires.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Fixes: 7ed98dddb764 ("fsi: Add On-Chip Controller (OCC) driver")
Link: https://lore.kernel.org/r/20210209171235.20624-2-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-occ.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/fsi/fsi-occ.c b/drivers/fsi/fsi-occ.c
index 10ca2e290655..cb05b6dacc9d 100644
--- a/drivers/fsi/fsi-occ.c
+++ b/drivers/fsi/fsi-occ.c
@@ -495,6 +495,7 @@ int fsi_occ_submit(struct device *dev, const void *request, size_t req_len,
goto done;
if (resp->return_status == OCC_RESP_CMD_IN_PRG ||
+ resp->return_status == OCC_RESP_CRIT_INIT ||
resp->seq_no != seq_no) {
rc = -ETIMEDOUT;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 588/700] fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (586 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 589/700] fsi/sbefifo: Fix reset timeout Greg Kroah-Hartman
` (117 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joachim Fenkes, Joel Stanley, Sasha Levin
From: Joachim Fenkes <FENKES@de.ibm.com>
[ Upstream commit 95152433e46fdb36652ebdbea442356a16ae1fa6 ]
When the SBE requests a reset via the down FIFO, that is also the
FIFO we should go and reset ;)
Fixes: 9f4a8a2d7f9d ("fsi/sbefifo: Add driver for the SBE FIFO")
Signed-off-by: Joachim Fenkes <FENKES@de.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200724071518.430515-2-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-sbefifo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/fsi/fsi-sbefifo.c b/drivers/fsi/fsi-sbefifo.c
index bfd5e5da8020..de27c435d706 100644
--- a/drivers/fsi/fsi-sbefifo.c
+++ b/drivers/fsi/fsi-sbefifo.c
@@ -400,7 +400,7 @@ static int sbefifo_cleanup_hw(struct sbefifo *sbefifo)
/* The FIFO already contains a reset request from the SBE ? */
if (down_status & SBEFIFO_STS_RESET_REQ) {
dev_info(dev, "Cleanup: FIFO reset request set, resetting\n");
- rc = sbefifo_regw(sbefifo, SBEFIFO_UP, SBEFIFO_PERFORM_RESET);
+ rc = sbefifo_regw(sbefifo, SBEFIFO_DOWN, SBEFIFO_PERFORM_RESET);
if (rc) {
sbefifo->broken = true;
dev_err(dev, "Cleanup: Reset reg write failed, rc=%d\n", rc);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 589/700] fsi/sbefifo: Fix reset timeout
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (587 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 588/700] fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 590/700] visorbus: fix error return code in visorchipset_init() Greg Kroah-Hartman
` (116 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Joachim Fenkes, Joel Stanley, Sasha Levin
From: Joachim Fenkes <FENKES@de.ibm.com>
[ Upstream commit 9ab1428dfe2c66b51e0b41337cd0164da0ab6080 ]
On BMCs with lower timer resolution than 1ms, msleep(1) will take
way longer than 1ms, so looping 10k times won't wait for 10s but
significantly longer.
Fix this by using jiffies like the rest of the code.
Fixes: 9f4a8a2d7f9d ("fsi/sbefifo: Add driver for the SBE FIFO")
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Link: https://lore.kernel.org/r/20200724071518.430515-3-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/fsi/fsi-sbefifo.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/fsi/fsi-sbefifo.c b/drivers/fsi/fsi-sbefifo.c
index de27c435d706..84cb965bfed5 100644
--- a/drivers/fsi/fsi-sbefifo.c
+++ b/drivers/fsi/fsi-sbefifo.c
@@ -325,7 +325,8 @@ static int sbefifo_up_write(struct sbefifo *sbefifo, __be32 word)
static int sbefifo_request_reset(struct sbefifo *sbefifo)
{
struct device *dev = &sbefifo->fsi_dev->dev;
- u32 status, timeout;
+ unsigned long end_time;
+ u32 status;
int rc;
dev_dbg(dev, "Requesting FIFO reset\n");
@@ -341,7 +342,8 @@ static int sbefifo_request_reset(struct sbefifo *sbefifo)
}
/* Wait for it to complete */
- for (timeout = 0; timeout < SBEFIFO_RESET_TIMEOUT; timeout++) {
+ end_time = jiffies + msecs_to_jiffies(SBEFIFO_RESET_TIMEOUT);
+ while (!time_after(jiffies, end_time)) {
rc = sbefifo_regr(sbefifo, SBEFIFO_UP | SBEFIFO_STS, &status);
if (rc) {
dev_err(dev, "Failed to read UP fifo status during reset"
@@ -355,7 +357,7 @@ static int sbefifo_request_reset(struct sbefifo *sbefifo)
return 0;
}
- msleep(1);
+ cond_resched();
}
dev_err(dev, "FIFO reset timed out\n");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 590/700] visorbus: fix error return code in visorchipset_init()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (588 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 589/700] fsi/sbefifo: Fix reset timeout Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 591/700] iommu/amd: Fix extended features logging Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit ce52ec5beecc1079c251f60e3973b3758f60eb59 ]
Commit 1366a3db3dcf ("staging: unisys: visorbus: visorchipset_init clean
up gotos") assigns the initial value -ENODEV to the local variable 'err',
and the first several error branches will return this value after "goto
error". But commit f1f537c2e7f5 ("staging: unisys: visorbus: Consolidate
controlvm channel creation.") overwrites 'err' in the middle of the way.
As a result, some error branches do not successfully return the initial
value -ENODEV of 'err', but return 0.
In addition, when kzalloc() fails, -ENOMEM should be returned instead of
-ENODEV.
Fixes: f1f537c2e7f5 ("staging: unisys: visorbus: Consolidate controlvm channel creation.")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210528082614.9337-1-thunder.leizhen@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/visorbus/visorchipset.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/visorbus/visorchipset.c b/drivers/visorbus/visorchipset.c
index cb1eb7e05f87..5668cad86e37 100644
--- a/drivers/visorbus/visorchipset.c
+++ b/drivers/visorbus/visorchipset.c
@@ -1561,7 +1561,7 @@ schedule_out:
static int visorchipset_init(struct acpi_device *acpi_device)
{
- int err = -ENODEV;
+ int err = -ENOMEM;
struct visorchannel *controlvm_channel;
chipset_dev = kzalloc(sizeof(*chipset_dev), GFP_KERNEL);
@@ -1584,8 +1584,10 @@ static int visorchipset_init(struct acpi_device *acpi_device)
"controlvm",
sizeof(struct visor_controlvm_channel),
VISOR_CONTROLVM_CHANNEL_VERSIONID,
- VISOR_CHANNEL_SIGNATURE))
+ VISOR_CHANNEL_SIGNATURE)) {
+ err = -ENODEV;
goto error_delete_groups;
+ }
/* if booting in a crash kernel */
if (is_kdump_kernel())
INIT_DELAYED_WORK(&chipset_dev->periodic_controlvm_work,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 591/700] iommu/amd: Fix extended features logging
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (589 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 590/700] visorbus: fix error return code in visorchipset_init() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 592/700] s390: enable HAVE_IOREMAP_PROT Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Alexander Monakov, Paul Menzel,
Joerg Roedel, Suravee Suthikulpanit, iommu, Sasha Levin
From: Alexander Monakov <amonakov@ispras.ru>
[ Upstream commit 4b21a503adf597773e4b37db05db0e9b16a81d53 ]
print_iommu_info prints the EFR register and then the decoded list of
features on a separate line:
pci 0000:00:00.2: AMD-Vi: Extended features (0x206d73ef22254ade):
PPR X2APIC NX GT IA GA PC GA_vAPIC
The second line is emitted via 'pr_cont', which causes it to have a
different ('warn') loglevel compared to the previous line ('info').
Commit 9a295ff0ffc9 attempted to rectify this by removing the newline
from the pci_info format string, but this doesn't work, as pci_info
calls implicitly append a newline anyway.
Printing the decoded features on the same line would make it quite long.
Instead, change pci_info() to pr_info() to omit PCI bus location info,
which is also shown in the preceding message. This results in:
pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
AMD-Vi: Extended features (0x206d73ef22254ade): PPR X2APIC NX GT IA GA PC GA_vAPIC
AMD-Vi: Interrupt remapping enabled
Fixes: 9a295ff0ffc9 ("iommu/amd: Print extended features in one line to fix divergent log levels")
Link: https://lore.kernel.org/lkml/alpine.LNX.2.20.13.2104112326460.11104@monopod.intra.ispras.ru
Signed-off-by: Alexander Monakov <amonakov@ispras.ru>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: iommu@lists.linux-foundation.org
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/20210504102220.1793-1-amonakov@ispras.ru
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/amd/init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index df7b19ff0a9e..ecc7308130ba 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -1911,8 +1911,8 @@ static void print_iommu_info(void)
pci_info(pdev, "Found IOMMU cap 0x%x\n", iommu->cap_ptr);
if (iommu->cap & (1 << IOMMU_CAP_EFR)) {
- pci_info(pdev, "Extended features (%#llx):",
- iommu->features);
+ pr_info("Extended features (%#llx):", iommu->features);
+
for (i = 0; i < ARRAY_SIZE(feat_str); ++i) {
if (iommu_feature(iommu, (1ULL << i)))
pr_cont(" %s", feat_str[i]);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 592/700] s390: enable HAVE_IOREMAP_PROT
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:11 ` [PATCH 5.12 591/700] iommu/amd: Fix extended features logging Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 593/700] s390: appldata depends on PROC_SYSCTL Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Gerald Schaefer, Niklas Schnelle,
Vasily Gorbik, Sasha Levin
From: Niklas Schnelle <schnelle@linux.ibm.com>
[ Upstream commit d460bb6c6417588dd8b0907d34f69b237918812a ]
In commit b02002cc4c0f ("s390/pci: Implement ioremap_wc/prot() with
MIO") we implemented both ioremap_wc() and ioremap_prot() however until
now we had not set HAVE_IOREMAP_PROT in Kconfig, do so now.
This also requires implementing pte_pgprot() as this is used in the
generic_access_phys() code enabled by CONFIG_HAVE_IOREMAP_PROT. As with
ioremap_wc() we need to take the MMIO Write Back bit index into account.
Moreover since the pgprot value returned from pte_pgprot() is to be used
for mappings into kernel address space we must make sure that it uses
appropriate kernel page table protection bits. In particular a pgprot
value originally coming from userspace could have the _PAGE_PROTECT
bit set to enable fault based dirty bit accounting which would then make
the mapping inaccessible when used in kernel address space.
Fixes: b02002cc4c0f ("s390/pci: Implement ioremap_wc/prot() with MIO")
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/Kconfig | 1 +
arch/s390/include/asm/pgtable.h | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c1ff874e6c2e..d6676197276c 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -160,6 +160,7 @@ config S390
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_VDSO
+ select HAVE_IOREMAP_PROT if PCI
select HAVE_IRQ_EXIT_ON_IRQ_STACK
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_GZIP
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index b38f7b781564..adea53f69bfd 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -863,6 +863,25 @@ static inline int pte_unused(pte_t pte)
return pte_val(pte) & _PAGE_UNUSED;
}
+/*
+ * Extract the pgprot value from the given pte while at the same time making it
+ * usable for kernel address space mappings where fault driven dirty and
+ * young/old accounting is not supported, i.e _PAGE_PROTECT and _PAGE_INVALID
+ * must not be set.
+ */
+static inline pgprot_t pte_pgprot(pte_t pte)
+{
+ unsigned long pte_flags = pte_val(pte) & _PAGE_CHG_MASK;
+
+ if (pte_write(pte))
+ pte_flags |= pgprot_val(PAGE_KERNEL);
+ else
+ pte_flags |= pgprot_val(PAGE_KERNEL_RO);
+ pte_flags |= pte_val(pte) & mio_wb_bit_mask;
+
+ return __pgprot(pte_flags);
+}
+
/*
* pgd/pmd/pte modification functions
*/
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 593/700] s390: appldata depends on PROC_SYSCTL
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (591 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 592/700] s390: enable HAVE_IOREMAP_PROT Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 594/700] selftests: splice: Adjust for handler fallback removal Greg Kroah-Hartman
` (112 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Heiko Carstens,
Vasily Gorbik, Christian Borntraeger, linux-s390, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 5d3516b3647621d5a1180672ea9e0817fb718ada ]
APPLDATA_BASE should depend on PROC_SYSCTL instead of PROC_FS.
Building with PROC_FS but not PROC_SYSCTL causes a build error,
since appldata_base.c uses data and APIs from fs/proc/proc_sysctl.c.
arch/s390/appldata/appldata_base.o: in function `appldata_generic_handler':
appldata_base.c:(.text+0x192): undefined reference to `sysctl_vals'
Fixes: c185b783b099 ("[S390] Remove config options.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20210528002420.17634-1-rdunlap@infradead.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d6676197276c..4fcd460f496e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -859,7 +859,7 @@ config CMM_IUCV
config APPLDATA_BASE
def_bool n
prompt "Linux - VM Monitor Stream, base infrastructure"
- depends on PROC_FS
+ depends on PROC_SYSCTL
help
This provides a kernel interface for creating and updating z/VM APPLDATA
monitor records. The monitor records are updated at certain time
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 594/700] selftests: splice: Adjust for handler fallback removal
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (592 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 595/700] iommu/dma: Fix IOVA reserve dma ranges Greg Kroah-Hartman
` (111 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Christoph Hellwig,
Shuah Khan, linux-kselftest, Kees Cook, Shuah Khan, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit 6daf076b717d189f4d02a303d45edd5732341ec1 ]
Some pseudo-filesystems do not have an explicit splice fops since adding
commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops"),
and now will reject attempts to use splice() in those filesystem paths.
Reported-by: kernel test robot <rong.a.chen@intel.com>
Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/
Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../selftests/splice/short_splice_read.sh | 119 ++++++++++++++----
1 file changed, 98 insertions(+), 21 deletions(-)
diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh
index 7810d3589d9a..22b6c8910b18 100755
--- a/tools/testing/selftests/splice/short_splice_read.sh
+++ b/tools/testing/selftests/splice/short_splice_read.sh
@@ -1,21 +1,87 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
+#
+# Test for mishandling of splice() on pseudofilesystems, which should catch
+# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output")
+#
+# Since splice fallback was removed as part of the set_fs() rework, many of these
+# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/
set -e
+DIR=$(dirname "$0")
+
ret=0
+expect_success()
+{
+ title="$1"
+ shift
+
+ echo "" >&2
+ echo "$title ..." >&2
+
+ set +e
+ "$@"
+ rc=$?
+ set -e
+
+ case "$rc" in
+ 0)
+ echo "ok: $title succeeded" >&2
+ ;;
+ 1)
+ echo "FAIL: $title should work" >&2
+ ret=$(( ret + 1 ))
+ ;;
+ *)
+ echo "FAIL: something else went wrong" >&2
+ ret=$(( ret + 1 ))
+ ;;
+ esac
+}
+
+expect_failure()
+{
+ title="$1"
+ shift
+
+ echo "" >&2
+ echo "$title ..." >&2
+
+ set +e
+ "$@"
+ rc=$?
+ set -e
+
+ case "$rc" in
+ 0)
+ echo "FAIL: $title unexpectedly worked" >&2
+ ret=$(( ret + 1 ))
+ ;;
+ 1)
+ echo "ok: $title correctly failed" >&2
+ ;;
+ *)
+ echo "FAIL: something else went wrong" >&2
+ ret=$(( ret + 1 ))
+ ;;
+ esac
+}
+
do_splice()
{
filename="$1"
bytes="$2"
expected="$3"
+ report="$4"
- out=$(./splice_read "$filename" "$bytes" | cat)
+ out=$("$DIR"/splice_read "$filename" "$bytes" | cat)
if [ "$out" = "$expected" ] ; then
- echo "ok: $filename $bytes"
+ echo " matched $report" >&2
+ return 0
else
- echo "FAIL: $filename $bytes"
- ret=1
+ echo " no match: '$out' vs $report" >&2
+ return 1
fi
}
@@ -23,34 +89,45 @@ test_splice()
{
filename="$1"
+ echo " checking $filename ..." >&2
+
full=$(cat "$filename")
+ rc=$?
+ if [ $rc -ne 0 ] ; then
+ return 2
+ fi
+
two=$(echo "$full" | grep -m1 . | cut -c-2)
# Make sure full splice has the same contents as a standard read.
- do_splice "$filename" 4096 "$full"
+ echo " splicing 4096 bytes ..." >&2
+ if ! do_splice "$filename" 4096 "$full" "full read" ; then
+ return 1
+ fi
# Make sure a partial splice see the first two characters.
- do_splice "$filename" 2 "$two"
+ echo " splicing 2 bytes ..." >&2
+ if ! do_splice "$filename" 2 "$two" "'$two'" ; then
+ return 1
+ fi
+
+ return 0
}
-# proc_single_open(), seq_read()
-test_splice /proc/$$/limits
-# special open, seq_read()
-test_splice /proc/$$/comm
+### /proc/$pid/ has no splice interface; these should all fail.
+expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits
+expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm
-# proc_handler, proc_dointvec_minmax
-test_splice /proc/sys/fs/nr_open
-# proc_handler, proc_dostring
-test_splice /proc/sys/kernel/modprobe
-# proc_handler, special read
-test_splice /proc/sys/kernel/version
+### /proc/sys/ has a splice interface; these should all succeed.
+expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open
+expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe
+expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version
+### /sys/ has no splice interface; these should all fail.
if ! [ -d /sys/module/test_module/sections ] ; then
- modprobe test_module
+ expect_success "test_module kernel module load" modprobe test_module
fi
-# kernfs, attr
-test_splice /sys/module/test_module/coresize
-# kernfs, binattr
-test_splice /sys/module/test_module/sections/.init.text
+expect_failure "kernfs attr splice" test_splice /sys/module/test_module/coresize
+expect_failure "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text
exit $ret
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 595/700] iommu/dma: Fix IOVA reserve dma ranges
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` (593 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 596/700] ASoC: max98373-sdw: add missing memory allocation check Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Srinath Mannam, Robin Murphy,
Sven Peter, Joerg Roedel, Sasha Levin
From: Srinath Mannam <srinath.mannam@broadcom.com>
[ Upstream commit 571f316074a203e979ea90211d9acf423dfe5f46 ]
Fix IOVA reserve failure in the case when address of first memory region
listed in dma-ranges is equal to 0x0.
Fixes: aadad097cd46f ("iommu/dma: Reserve IOVA for PCIe inaccessible DMA address")
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20200914072319.6091-1-srinath.mannam@broadcom.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/dma-iommu.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index fdd095e1fa52..5f75ab0dfc73 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -252,9 +252,11 @@ resv_iova:
lo = iova_pfn(iovad, start);
hi = iova_pfn(iovad, end);
reserve_iova(iovad, lo, hi);
- } else {
+ } else if (end < start) {
/* dma_ranges list should be sorted */
- dev_err(&dev->dev, "Failed to reserve IOVA\n");
+ dev_err(&dev->dev,
+ "Failed to reserve IOVA [%#010llx-%#010llx]\n",
+ start, end);
return -EINVAL;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 596/700] ASoC: max98373-sdw: add missing memory allocation check
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit 468a272ca49cc4e2f58f3c360643c3f6d313c146 ]
We forgot to test that devm_kcalloc doesn't return NULL.
Fixes: 349dd23931d1 ('ASoC: max98373: don't access volatile registers in bias level off')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/max98373-sdw.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c
index f3a12205cd48..c7a3506046db 100644
--- a/sound/soc/codecs/max98373-sdw.c
+++ b/sound/soc/codecs/max98373-sdw.c
@@ -787,6 +787,8 @@ static int max98373_init(struct sdw_slave *slave, struct regmap *regmap)
max98373->cache = devm_kcalloc(dev, max98373->cache_num,
sizeof(*max98373->cache),
GFP_KERNEL);
+ if (!max98373->cache)
+ return -ENOMEM;
for (i = 0; i < max98373->cache_num; i++)
max98373->cache[i].reg = max98373_sdw_cache_reg[i];
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 597/700] ASoC: max98373-sdw: use first_hw_init flag on resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (595 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 596/700] ASoC: max98373-sdw: add missing memory allocation check Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 598/700] ASoC: rt1308-sdw: " Greg Kroah-Hartman
` (108 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit bf881170311ea74ff30c3be0be8fb097132ce696 ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
This patch renames the status flag to 'first_hw_init' for consistency
with other drivers.
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 56a5b7910e96 ('ASoC: codecs: max98373: add SoundWire support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/max98373-sdw.c | 12 ++++++------
sound/soc/codecs/max98373.h | 2 +-
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c
index c7a3506046db..dc520effc61c 100644
--- a/sound/soc/codecs/max98373-sdw.c
+++ b/sound/soc/codecs/max98373-sdw.c
@@ -271,7 +271,7 @@ static __maybe_unused int max98373_resume(struct device *dev)
struct max98373_priv *max98373 = dev_get_drvdata(dev);
unsigned long time;
- if (!max98373->hw_init)
+ if (!max98373->first_hw_init)
return 0;
if (!slave->unattach_request)
@@ -362,7 +362,7 @@ static int max98373_io_init(struct sdw_slave *slave)
struct device *dev = &slave->dev;
struct max98373_priv *max98373 = dev_get_drvdata(dev);
- if (max98373->pm_init_once) {
+ if (max98373->first_hw_init) {
regcache_cache_only(max98373->regmap, false);
regcache_cache_bypass(max98373->regmap, true);
}
@@ -370,7 +370,7 @@ static int max98373_io_init(struct sdw_slave *slave)
/*
* PM runtime is only enabled when a Slave reports as Attached
*/
- if (!max98373->pm_init_once) {
+ if (!max98373->first_hw_init) {
/* set autosuspend parameters */
pm_runtime_set_autosuspend_delay(dev, 3000);
pm_runtime_use_autosuspend(dev);
@@ -462,12 +462,12 @@ static int max98373_io_init(struct sdw_slave *slave)
regmap_write(max98373->regmap, MAX98373_R20B5_BDE_EN, 1);
regmap_write(max98373->regmap, MAX98373_R20E2_LIMITER_EN, 1);
- if (max98373->pm_init_once) {
+ if (max98373->first_hw_init) {
regcache_cache_bypass(max98373->regmap, false);
regcache_mark_dirty(max98373->regmap);
}
- max98373->pm_init_once = true;
+ max98373->first_hw_init = true;
max98373->hw_init = true;
pm_runtime_mark_last_busy(dev);
@@ -797,7 +797,7 @@ static int max98373_init(struct sdw_slave *slave, struct regmap *regmap)
max98373_slot_config(dev, max98373);
max98373->hw_init = false;
- max98373->pm_init_once = false;
+ max98373->first_hw_init = false;
/* codec registration */
ret = devm_snd_soc_register_component(dev, &soc_codec_dev_max98373_sdw,
diff --git a/sound/soc/codecs/max98373.h b/sound/soc/codecs/max98373.h
index 71f5a5228f34..c09c73678a9a 100644
--- a/sound/soc/codecs/max98373.h
+++ b/sound/soc/codecs/max98373.h
@@ -223,7 +223,7 @@ struct max98373_priv {
/* variables to support soundwire */
struct sdw_slave *slave;
bool hw_init;
- bool pm_init_once;
+ bool first_hw_init;
int slot;
unsigned int rx_mask;
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 598/700] ASoC: rt1308-sdw: use first_hw_init flag on resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (596 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 597/700] ASoC: max98373-sdw: use first_hw_init flag on resume Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 599/700] ASoC: rt5682-sdw: " Greg Kroah-Hartman
` (107 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit 30e102dab5fad1db71684f8ac5e1ac74e49da06d ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: a87a6653a28c0 ('ASoC: rt1308-sdw: add rt1308 SdW amplifier driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt1308-sdw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c
index afd2c3b687cc..0ec741cf70fc 100644
--- a/sound/soc/codecs/rt1308-sdw.c
+++ b/sound/soc/codecs/rt1308-sdw.c
@@ -709,7 +709,7 @@ static int __maybe_unused rt1308_dev_resume(struct device *dev)
struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev);
unsigned long time;
- if (!rt1308->hw_init)
+ if (!rt1308->first_hw_init)
return 0;
if (!slave->unattach_request)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 599/700] ASoC: rt5682-sdw: use first_hw_init flag on resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (597 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 598/700] ASoC: rt1308-sdw: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 600/700] ASoC: rt700-sdw: " Greg Kroah-Hartman
` (106 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit 5361a42114689f875a9748299cadb4b1adbee6f4 ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 03f6fc6de9192 ('ASoC: rt5682: Add the soundwire support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5682-sdw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index d1dd7f720ba4..6bf1b4c31296 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -743,7 +743,7 @@ static int __maybe_unused rt5682_dev_resume(struct device *dev)
struct rt5682_priv *rt5682 = dev_get_drvdata(dev);
unsigned long time;
- if (!rt5682->hw_init)
+ if (!rt5682->first_hw_init)
return 0;
if (!slave->unattach_request)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 600/700] ASoC: rt700-sdw: use first_hw_init flag on resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (598 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 599/700] ASoC: rt5682-sdw: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 601/700] ASoC: rt711-sdw: " Greg Kroah-Hartman
` (105 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit a9e54e5fbe396b546771cf77b43ce7c75e212278 ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 7d2a5f9ae41e3 ('ASoC: rt700: add rt700 codec driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt700-sdw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt700-sdw.c b/sound/soc/codecs/rt700-sdw.c
index 4001612dfd73..fc6299a6022d 100644
--- a/sound/soc/codecs/rt700-sdw.c
+++ b/sound/soc/codecs/rt700-sdw.c
@@ -498,7 +498,7 @@ static int __maybe_unused rt700_dev_resume(struct device *dev)
struct rt700_priv *rt700 = dev_get_drvdata(dev);
unsigned long time;
- if (!rt700->hw_init)
+ if (!rt700->first_hw_init)
return 0;
if (!slave->unattach_request)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 601/700] ASoC: rt711-sdw: use first_hw_init flag on resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (599 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 600/700] ASoC: rt700-sdw: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 602/700] ASoC: rt715-sdw: " Greg Kroah-Hartman
` (104 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit a0897ebca669f09a2e02206a9c48a738af655329 ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 320b8b0d13b81 ('ASoC: rt711: add rt711 codec driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt711-sdw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt711-sdw.c b/sound/soc/codecs/rt711-sdw.c
index 2beb4286d997..bfa9fede7f90 100644
--- a/sound/soc/codecs/rt711-sdw.c
+++ b/sound/soc/codecs/rt711-sdw.c
@@ -501,7 +501,7 @@ static int __maybe_unused rt711_dev_resume(struct device *dev)
struct rt711_priv *rt711 = dev_get_drvdata(dev);
unsigned long time;
- if (!rt711->hw_init)
+ if (!rt711->first_hw_init)
return 0;
if (!slave->unattach_request)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 602/700] ASoC: rt715-sdw: use first_hw_init flag on resume
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (600 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 601/700] ASoC: rt711-sdw: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 603/700] ASoC: rt5682: Fix a problem with error handling in the io init function of the soundwire Greg Kroah-Hartman
` (103 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Pierre-Louis Bossart,
Guennadi Liakhovetski, Bard Liao, Mark Brown, Sasha Levin
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[ Upstream commit dbc07517ab173688ef11234d1099bc1e24e4f14b ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: d1ede0641b05e ('ASoC: rt715: add RT715 codec driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt715-sdw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/rt715-sdw.c b/sound/soc/codecs/rt715-sdw.c
index 71dd3b97a459..157a97acc6c2 100644
--- a/sound/soc/codecs/rt715-sdw.c
+++ b/sound/soc/codecs/rt715-sdw.c
@@ -541,7 +541,7 @@ static int __maybe_unused rt715_dev_resume(struct device *dev)
struct rt715_priv *rt715 = dev_get_drvdata(dev);
unsigned long time;
- if (!rt715->hw_init)
+ if (!rt715->first_hw_init)
return 0;
if (!slave->unattach_request)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 603/700] ASoC: rt5682: Fix a problem with error handling in the io init function of the soundwire
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (601 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 602/700] ASoC: rt715-sdw: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 604/700] ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID Greg Kroah-Hartman
` (102 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bard Liao, Oder Chiou,
Pierre-Louis Bossart, Mark Brown, Sasha Levin
From: Oder Chiou <oder_chiou@realtek.com>
[ Upstream commit 9266d95405ae0c078f188ec8bca3a004631be429 ]
The device checking error should be a jump to pm_runtime_put_autosuspend()
as done before returning value.
Fixes: 867f8d18df4f ('ASoC: rt5682: fix getting the wrong device id when the suspend_stress_test')
Reviewed-by: Bard Liao <bard.liao@intel.com>
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-13-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5682-sdw.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index 6bf1b4c31296..2b0f02e6c977 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -408,9 +408,11 @@ static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
usleep_range(30000, 30005);
loop--;
}
+
if (val != DEVICE_ID) {
dev_err(dev, "Device with ID register %x is not rt5682\n", val);
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_nodev;
}
if (rt5682->first_hw_init) {
@@ -486,10 +488,11 @@ reinit:
rt5682->hw_init = true;
rt5682->first_hw_init = true;
+err_nodev:
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_put_autosuspend(&slave->dev);
- dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
+ dev_dbg(&slave->dev, "%s hw_init complete: %d\n", __func__, ret);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 604/700] ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (602 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 603/700] ASoC: rt5682: Fix a problem with error handling in the io init function of the soundwire Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 605/700] ASoC: mediatek: mtk-btcvsd: Fix an error handling path in mtk_btcvsd_snd_probe() Greg Kroah-Hartman
` (101 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bard Liao, Pierre-Louis Bossart,
Mark Brown, Sasha Levin
From: Bard Liao <yung-chuan.liao@linux.intel.com>
[ Upstream commit c0372bc873dd29f325ee908351e0bd5b08d4d608 ]
RT5682_DEVICE_ID is a volatile register, we can not read it in cache
only mode.
Fixes: 03f6fc6de919 ("ASoC: rt5682: Add the soundwire support")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210607222239.582139-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt5682-sdw.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index 2b0f02e6c977..b4649b599eaa 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -400,6 +400,11 @@ static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
pm_runtime_get_noresume(&slave->dev);
+ if (rt5682->first_hw_init) {
+ regcache_cache_only(rt5682->regmap, false);
+ regcache_cache_bypass(rt5682->regmap, true);
+ }
+
while (loop > 0) {
regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
if (val == DEVICE_ID)
@@ -415,11 +420,6 @@ static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
goto err_nodev;
}
- if (rt5682->first_hw_init) {
- regcache_cache_only(rt5682->regmap, false);
- regcache_cache_bypass(rt5682->regmap, true);
- }
-
rt5682_calibrate(rt5682);
if (rt5682->first_hw_init) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 605/700] ASoC: mediatek: mtk-btcvsd: Fix an error handling path in mtk_btcvsd_snd_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (603 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 604/700] ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 606/700] usb: gadget: f_fs: Fix setting of device and driver data cross-references Greg Kroah-Hartman
` (100 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Mark Brown, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit b6052c3c7a78f5e2b9756c92ef77c0b56435f107 ]
If an error occurs after a successful 'of_iomap()' call, it must be undone
by a corresponding 'iounmap()' call, as already done in the remove
function.
While at it, remove the useless initialization of 'ret' at the beginning of
the function.
Fixes: 4bd8597dc36c ("ASoC: mediatek: add btcvsd driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0c2ba562c3364e61bfbd5b3013a99dfa0d9045d7.1622989685.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/mediatek/common/mtk-btcvsd.c | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/sound/soc/mediatek/common/mtk-btcvsd.c b/sound/soc/mediatek/common/mtk-btcvsd.c
index a554c57b6460..6299dee9a6de 100644
--- a/sound/soc/mediatek/common/mtk-btcvsd.c
+++ b/sound/soc/mediatek/common/mtk-btcvsd.c
@@ -1281,7 +1281,7 @@ static const struct snd_soc_component_driver mtk_btcvsd_snd_platform = {
static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
{
- int ret = 0;
+ int ret;
int irq_id;
u32 offset[5] = {0, 0, 0, 0, 0};
struct mtk_btcvsd_snd *btcvsd;
@@ -1337,7 +1337,8 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
btcvsd->bt_sram_bank2_base = of_iomap(dev->of_node, 1);
if (!btcvsd->bt_sram_bank2_base) {
dev_err(dev, "iomap bt_sram_bank2_base fail\n");
- return -EIO;
+ ret = -EIO;
+ goto unmap_pkv_err;
}
btcvsd->infra = syscon_regmap_lookup_by_phandle(dev->of_node,
@@ -1345,7 +1346,8 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
if (IS_ERR(btcvsd->infra)) {
dev_err(dev, "cannot find infra controller: %ld\n",
PTR_ERR(btcvsd->infra));
- return PTR_ERR(btcvsd->infra);
+ ret = PTR_ERR(btcvsd->infra);
+ goto unmap_bank2_err;
}
/* get offset */
@@ -1354,7 +1356,7 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
ARRAY_SIZE(offset));
if (ret) {
dev_warn(dev, "%s(), get offset fail, ret %d\n", __func__, ret);
- return ret;
+ goto unmap_bank2_err;
}
btcvsd->infra_misc_offset = offset[0];
btcvsd->conn_bt_cvsd_mask = offset[1];
@@ -1373,8 +1375,18 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
mtk_btcvsd_snd_set_state(btcvsd, btcvsd->tx, BT_SCO_STATE_IDLE);
mtk_btcvsd_snd_set_state(btcvsd, btcvsd->rx, BT_SCO_STATE_IDLE);
- return devm_snd_soc_register_component(dev, &mtk_btcvsd_snd_platform,
- NULL, 0);
+ ret = devm_snd_soc_register_component(dev, &mtk_btcvsd_snd_platform,
+ NULL, 0);
+ if (ret)
+ goto unmap_bank2_err;
+
+ return 0;
+
+unmap_bank2_err:
+ iounmap(btcvsd->bt_sram_bank2_base);
+unmap_pkv_err:
+ iounmap(btcvsd->bt_pkv_base);
+ return ret;
}
static int mtk_btcvsd_snd_remove(struct platform_device *pdev)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 606/700] usb: gadget: f_fs: Fix setting of device and driver data cross-references
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (604 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 605/700] ASoC: mediatek: mtk-btcvsd: Fix an error handling path in mtk_btcvsd_snd_probe() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 607/700] usb: dwc2: Dont reset the core after setting turnaround time Greg Kroah-Hartman
` (99 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bhuvanesh Surachari, Eugeniu Rosca,
Andrew Gabbasov, Sasha Levin
From: Andrew Gabbasov <andrew_gabbasov@mentor.com>
[ Upstream commit ecfbd7b9054bddb12cea07fda41bb3a79a7b0149 ]
FunctionFS device structure 'struct ffs_dev' and driver data structure
'struct ffs_data' are bound to each other with cross-reference pointers
'ffs_data->private_data' and 'ffs_dev->ffs_data'. While the first one
is supposed to be valid through the whole life of 'struct ffs_data'
(and while 'struct ffs_dev' exists non-freed), the second one is cleared
in 'ffs_closed()' (called from 'ffs_data_reset()' or the last
'ffs_data_put()'). This can be called several times, alternating in
different order with 'ffs_free_inst()', that, if possible, clears
the other cross-reference.
As a result, different cases of these calls order may leave stale
cross-reference pointers, used when the pointed structure is already
freed. Even if it occasionally doesn't cause kernel crash, this error
is reported by KASAN-enabled kernel configuration.
For example, the case [last 'ffs_data_put()' - 'ffs_free_inst()'] was
fixed by commit cdafb6d8b8da ("usb: gadget: f_fs: Fix use-after-free in
ffs_free_inst").
The other case ['ffs_data_reset()' - 'ffs_free_inst()' - 'ffs_data_put()']
now causes KASAN reported error [1], when 'ffs_data_reset()' clears
'ffs_dev->ffs_data', then 'ffs_free_inst()' frees the 'struct ffs_dev',
but can't clear 'ffs_data->private_data', which is then accessed
in 'ffs_closed()' called from 'ffs_data_put()'. This happens since
'ffs_dev->ffs_data' reference is cleared too early.
Moreover, one more use case, when 'ffs_free_inst()' is called immediately
after mounting FunctionFS device (that is before the descriptors are
written and 'ffs_ready()' is called), and then 'ffs_data_reset()'
or 'ffs_data_put()' is called from accessing "ep0" file or unmounting
the device. This causes KASAN error report like [2], since
'ffs_dev->ffs_data' is not yet set when 'ffs_free_inst()' can't properly
clear 'ffs_data->private_data', that is later accessed to freed structure.
Fix these (and may be other) cases of stale pointers access by moving
setting and clearing of the mentioned cross-references to the single
places, setting both of them when 'struct ffs_data' is created and
bound to 'struct ffs_dev', and clearing both of them when one of the
structures is destroyed. It seems convenient to make this pointer
initialization and structures binding in 'ffs_acquire_dev()' and
make pointers clearing in 'ffs_release_dev()'. This required some
changes in these functions parameters and return types.
Also, 'ffs_release_dev()' calling requires some cleanup, fixing minor
issues, like (1) 'ffs_release_dev()' is not called if 'ffs_free_inst()'
is called without unmounting the device, and "release_dev" callback
is not called at all, or (2) "release_dev" callback is called before
"ffs_closed" callback on unmounting, which seems to be not correctly
nested with "acquire_dev" and "ffs_ready" callbacks.
Make this cleanup togther with other mentioned 'ffs_release_dev()' changes.
[1]
==================================================================
root@rcar-gen3:~# mkdir /dev/cfs
root@rcar-gen3:~# mkdir /dev/ffs
root@rcar-gen3:~# modprobe libcomposite
root@rcar-gen3:~# mount -t configfs none /dev/cfs
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[ 64.340664] file system registered
root@rcar-gen3:~# mount -t functionfs ffs /dev/ffs
root@rcar-gen3:~# cd /dev/ffs
root@rcar-gen3:/dev/ffs# /home/root/ffs-test
ffs-test: info: ep0: writing descriptors (in v2 format)
[ 83.181442] read descriptors
[ 83.186085] read strings
ffs-test: info: ep0: writing strings
ffs-test: dbg: ep1: starting
ffs-test: dbg: ep2: starting
ffs-test: info: ep1: starts
ffs-test: info: ep2: starts
ffs-test: info: ep0: starts
^C
root@rcar-gen3:/dev/ffs# cd /home/root/
root@rcar-gen3:~# rmdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[ 98.935061] unloading
root@rcar-gen3:~# umount /dev/ffs
[ 102.734301] ==================================================================
[ 102.742059] BUG: KASAN: use-after-free in ffs_release_dev+0x64/0xa8 [usb_f_fs]
[ 102.749683] Write of size 1 at addr ffff0004d46ff549 by task umount/2997
[ 102.756709]
[ 102.758311] CPU: 0 PID: 2997 Comm: umount Not tainted 5.13.0-rc4+ #8
[ 102.764971] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 102.772179] Call trace:
[ 102.774779] dump_backtrace+0x0/0x330
[ 102.778653] show_stack+0x20/0x2c
[ 102.782152] dump_stack+0x11c/0x1ac
[ 102.785833] print_address_description.constprop.0+0x30/0x274
[ 102.791862] kasan_report+0x14c/0x1c8
[ 102.795719] __asan_report_store1_noabort+0x34/0x58
[ 102.800840] ffs_release_dev+0x64/0xa8 [usb_f_fs]
[ 102.805801] ffs_fs_kill_sb+0x50/0x84 [usb_f_fs]
[ 102.810663] deactivate_locked_super+0xa0/0xf0
[ 102.815339] deactivate_super+0x98/0xac
[ 102.819378] cleanup_mnt+0xd0/0x1b0
[ 102.823057] __cleanup_mnt+0x1c/0x28
[ 102.826823] task_work_run+0x104/0x180
[ 102.830774] do_notify_resume+0x458/0x14e0
[ 102.835083] work_pending+0xc/0x5f8
[ 102.838762]
[ 102.840357] Allocated by task 2988:
[ 102.844032] kasan_save_stack+0x28/0x58
[ 102.848071] kasan_set_track+0x28/0x3c
[ 102.852016] ____kasan_kmalloc+0x84/0x9c
[ 102.856142] __kasan_kmalloc+0x10/0x1c
[ 102.860088] __kmalloc+0x214/0x2f8
[ 102.863678] kzalloc.constprop.0+0x14/0x20 [usb_f_fs]
[ 102.868990] ffs_alloc_inst+0x8c/0x208 [usb_f_fs]
[ 102.873942] try_get_usb_function_instance+0xf0/0x164 [libcomposite]
[ 102.880629] usb_get_function_instance+0x64/0x68 [libcomposite]
[ 102.886858] function_make+0x128/0x1ec [libcomposite]
[ 102.892185] configfs_mkdir+0x330/0x590 [configfs]
[ 102.897245] vfs_mkdir+0x12c/0x1bc
[ 102.900835] do_mkdirat+0x180/0x1d0
[ 102.904513] __arm64_sys_mkdirat+0x80/0x94
[ 102.908822] invoke_syscall+0xf8/0x25c
[ 102.912772] el0_svc_common.constprop.0+0x150/0x1a0
[ 102.917891] do_el0_svc+0xa0/0xd4
[ 102.921386] el0_svc+0x24/0x34
[ 102.924613] el0_sync_handler+0xcc/0x154
[ 102.928743] el0_sync+0x198/0x1c0
[ 102.932238]
[ 102.933832] Freed by task 2996:
[ 102.937144] kasan_save_stack+0x28/0x58
[ 102.941181] kasan_set_track+0x28/0x3c
[ 102.945128] kasan_set_free_info+0x28/0x4c
[ 102.949435] ____kasan_slab_free+0x104/0x118
[ 102.953921] __kasan_slab_free+0x18/0x24
[ 102.958047] slab_free_freelist_hook+0x148/0x1f0
[ 102.962897] kfree+0x318/0x440
[ 102.966123] ffs_free_inst+0x164/0x2d8 [usb_f_fs]
[ 102.971075] usb_put_function_instance+0x84/0xa4 [libcomposite]
[ 102.977302] ffs_attr_release+0x18/0x24 [usb_f_fs]
[ 102.982344] config_item_put+0x140/0x1a4 [configfs]
[ 102.987486] configfs_rmdir+0x3fc/0x518 [configfs]
[ 102.992535] vfs_rmdir+0x114/0x234
[ 102.996122] do_rmdir+0x274/0x2b0
[ 102.999617] __arm64_sys_unlinkat+0x94/0xc8
[ 103.004015] invoke_syscall+0xf8/0x25c
[ 103.007961] el0_svc_common.constprop.0+0x150/0x1a0
[ 103.013080] do_el0_svc+0xa0/0xd4
[ 103.016575] el0_svc+0x24/0x34
[ 103.019801] el0_sync_handler+0xcc/0x154
[ 103.023930] el0_sync+0x198/0x1c0
[ 103.027426]
[ 103.029020] The buggy address belongs to the object at ffff0004d46ff500
[ 103.029020] which belongs to the cache kmalloc-128 of size 128
[ 103.042079] The buggy address is located 73 bytes inside of
[ 103.042079] 128-byte region [ffff0004d46ff500, ffff0004d46ff580)
[ 103.054236] The buggy address belongs to the page:
[ 103.059262] page:0000000021aa849b refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0004d46fee00 pfn:0x5146fe
[ 103.070437] head:0000000021aa849b order:1 compound_mapcount:0
[ 103.076456] flags: 0x8000000000010200(slab|head|zone=2)
[ 103.081948] raw: 8000000000010200 fffffc0013521a80 0000000d0000000d ffff0004c0002300
[ 103.090052] raw: ffff0004d46fee00 000000008020001e 00000001ffffffff 0000000000000000
[ 103.098150] page dumped because: kasan: bad access detected
[ 103.103985]
[ 103.105578] Memory state around the buggy address:
[ 103.110602] ffff0004d46ff400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 103.118161] ffff0004d46ff480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 103.125726] >ffff0004d46ff500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 103.133284] ^
[ 103.139120] ffff0004d46ff580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 103.146679] ffff0004d46ff600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 103.154238] ==================================================================
[ 103.161792] Disabling lock debugging due to kernel taint
[ 103.167319] Unable to handle kernel paging request at virtual address 0037801d6000018e
[ 103.175406] Mem abort info:
[ 103.178457] ESR = 0x96000004
[ 103.181609] EC = 0x25: DABT (current EL), IL = 32 bits
[ 103.187020] SET = 0, FnV = 0
[ 103.190185] EA = 0, S1PTW = 0
[ 103.193417] Data abort info:
[ 103.196385] ISV = 0, ISS = 0x00000004
[ 103.200315] CM = 0, WnR = 0
[ 103.203366] [0037801d6000018e] address between user and kernel address ranges
[ 103.210611] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 103.216231] Modules linked in: usb_f_fs libcomposite configfs ath9k_htc led_class mac80211 libarc4 ath9k_common ath9k_hw ath cfg80211 aes_ce_blk sata_rc4
[ 103.259233] CPU: 0 PID: 2997 Comm: umount Tainted: G B 5.13.0-rc4+ #8
[ 103.267031] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 103.273951] pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
[ 103.280001] pc : ffs_data_clear+0x138/0x370 [usb_f_fs]
[ 103.285197] lr : ffs_data_clear+0x124/0x370 [usb_f_fs]
[ 103.290385] sp : ffff800014777a80
[ 103.293725] x29: ffff800014777a80 x28: ffff0004d7649c80 x27: 0000000000000000
[ 103.300931] x26: ffff800014777fb0 x25: ffff60009aec9394 x24: ffff0004d7649ca4
[ 103.308136] x23: 1fffe0009a3d063a x22: dfff800000000000 x21: ffff0004d1e831d0
[ 103.315340] x20: e1c000eb00000bb4 x19: ffff0004d1e83000 x18: 0000000000000000
[ 103.322545] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[ 103.329748] x14: 0720072007200720 x13: 0720072007200720 x12: 1ffff000012ef658
[ 103.336952] x11: ffff7000012ef658 x10: 0720072007200720 x9 : ffff800011322648
[ 103.344157] x8 : ffff800014777818 x7 : ffff80000977b2c7 x6 : 0000000000000000
[ 103.351359] x5 : 0000000000000001 x4 : ffff7000012ef659 x3 : 0000000000000001
[ 103.358562] x2 : 0000000000000000 x1 : 1c38001d6000018e x0 : e1c000eb00000c70
[ 103.365766] Call trace:
[ 103.368235] ffs_data_clear+0x138/0x370 [usb_f_fs]
[ 103.373076] ffs_data_reset+0x20/0x304 [usb_f_fs]
[ 103.377829] ffs_data_closed+0x1ec/0x244 [usb_f_fs]
[ 103.382755] ffs_fs_kill_sb+0x70/0x84 [usb_f_fs]
[ 103.387420] deactivate_locked_super+0xa0/0xf0
[ 103.391905] deactivate_super+0x98/0xac
[ 103.395776] cleanup_mnt+0xd0/0x1b0
[ 103.399299] __cleanup_mnt+0x1c/0x28
[ 103.402906] task_work_run+0x104/0x180
[ 103.406691] do_notify_resume+0x458/0x14e0
[ 103.410823] work_pending+0xc/0x5f8
[ 103.414351] Code: b4000a54 9102f280 12000802 d343fc01 (38f66821)
[ 103.420490] ---[ end trace 57b43a50e8244f57 ]---
Segmentation fault
root@rcar-gen3:~#
==================================================================
[2]
==================================================================
root@rcar-gen3:~# mkdir /dev/ffs
root@rcar-gen3:~# modprobe libcomposite
root@rcar-gen3:~#
root@rcar-gen3:~# mount -t configfs none /dev/cfs
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1
root@rcar-gen3:~# mkdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[ 54.766480] file system registered
root@rcar-gen3:~# mount -t functionfs ffs /dev/ffs
root@rcar-gen3:~# rmdir /dev/cfs/usb_gadget/g1/functions/ffs.ffs
[ 63.197597] unloading
root@rcar-gen3:~# cat /dev/ffs/ep0
cat: read error:[ 67.213506] ==================================================================
[ 67.222095] BUG: KASAN: use-after-free in ffs_data_clear+0x70/0x370 [usb_f_fs]
[ 67.229699] Write of size 1 at addr ffff0004c26e974a by task cat/2994
[ 67.236446]
[ 67.238045] CPU: 0 PID: 2994 Comm: cat Not tainted 5.13.0-rc4+ #8
[ 67.244431] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 67.251624] Call trace:
[ 67.254212] dump_backtrace+0x0/0x330
[ 67.258081] show_stack+0x20/0x2c
[ 67.261579] dump_stack+0x11c/0x1ac
[ 67.265260] print_address_description.constprop.0+0x30/0x274
[ 67.271286] kasan_report+0x14c/0x1c8
[ 67.275143] __asan_report_store1_noabort+0x34/0x58
[ 67.280265] ffs_data_clear+0x70/0x370 [usb_f_fs]
[ 67.285220] ffs_data_reset+0x20/0x304 [usb_f_fs]
[ 67.290172] ffs_data_closed+0x240/0x244 [usb_f_fs]
[ 67.295305] ffs_ep0_release+0x40/0x54 [usb_f_fs]
[ 67.300256] __fput+0x304/0x580
[ 67.303576] ____fput+0x18/0x24
[ 67.306893] task_work_run+0x104/0x180
[ 67.310846] do_notify_resume+0x458/0x14e0
[ 67.315154] work_pending+0xc/0x5f8
[ 67.318834]
[ 67.320429] Allocated by task 2988:
[ 67.324105] kasan_save_stack+0x28/0x58
[ 67.328144] kasan_set_track+0x28/0x3c
[ 67.332090] ____kasan_kmalloc+0x84/0x9c
[ 67.336217] __kasan_kmalloc+0x10/0x1c
[ 67.340163] __kmalloc+0x214/0x2f8
[ 67.343754] kzalloc.constprop.0+0x14/0x20 [usb_f_fs]
[ 67.349066] ffs_alloc_inst+0x8c/0x208 [usb_f_fs]
[ 67.354017] try_get_usb_function_instance+0xf0/0x164 [libcomposite]
[ 67.360705] usb_get_function_instance+0x64/0x68 [libcomposite]
[ 67.366934] function_make+0x128/0x1ec [libcomposite]
[ 67.372260] configfs_mkdir+0x330/0x590 [configfs]
[ 67.377320] vfs_mkdir+0x12c/0x1bc
[ 67.380911] do_mkdirat+0x180/0x1d0
[ 67.384589] __arm64_sys_mkdirat+0x80/0x94
[ 67.388899] invoke_syscall+0xf8/0x25c
[ 67.392850] el0_svc_common.constprop.0+0x150/0x1a0
[ 67.397969] do_el0_svc+0xa0/0xd4
[ 67.401464] el0_svc+0x24/0x34
[ 67.404691] el0_sync_handler+0xcc/0x154
[ 67.408819] el0_sync+0x198/0x1c0
[ 67.412315]
[ 67.413909] Freed by task 2993:
[ 67.417220] kasan_save_stack+0x28/0x58
[ 67.421257] kasan_set_track+0x28/0x3c
[ 67.425204] kasan_set_free_info+0x28/0x4c
[ 67.429513] ____kasan_slab_free+0x104/0x118
[ 67.434001] __kasan_slab_free+0x18/0x24
[ 67.438128] slab_free_freelist_hook+0x148/0x1f0
[ 67.442978] kfree+0x318/0x440
[ 67.446205] ffs_free_inst+0x164/0x2d8 [usb_f_fs]
[ 67.451156] usb_put_function_instance+0x84/0xa4 [libcomposite]
[ 67.457385] ffs_attr_release+0x18/0x24 [usb_f_fs]
[ 67.462428] config_item_put+0x140/0x1a4 [configfs]
[ 67.467570] configfs_rmdir+0x3fc/0x518 [configfs]
[ 67.472626] vfs_rmdir+0x114/0x234
[ 67.476215] do_rmdir+0x274/0x2b0
[ 67.479710] __arm64_sys_unlinkat+0x94/0xc8
[ 67.484108] invoke_syscall+0xf8/0x25c
[ 67.488055] el0_svc_common.constprop.0+0x150/0x1a0
[ 67.493175] do_el0_svc+0xa0/0xd4
[ 67.496671] el0_svc+0x24/0x34
[ 67.499896] el0_sync_handler+0xcc/0x154
[ 67.504024] el0_sync+0x198/0x1c0
[ 67.507520]
[ 67.509114] The buggy address belongs to the object at ffff0004c26e9700
[ 67.509114] which belongs to the cache kmalloc-128 of size 128
[ 67.522171] The buggy address is located 74 bytes inside of
[ 67.522171] 128-byte region [ffff0004c26e9700, ffff0004c26e9780)
[ 67.534328] The buggy address belongs to the page:
[ 67.539355] page:000000003177a217 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5026e8
[ 67.549175] head:000000003177a217 order:1 compound_mapcount:0
[ 67.555195] flags: 0x8000000000010200(slab|head|zone=2)
[ 67.560687] raw: 8000000000010200 fffffc0013037100 0000000c00000002 ffff0004c0002300
[ 67.568791] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
[ 67.576890] page dumped because: kasan: bad access detected
[ 67.582725]
[ 67.584318] Memory state around the buggy address:
[ 67.589343] ffff0004c26e9600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 67.596903] ffff0004c26e9680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 67.604463] >ffff0004c26e9700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 67.612022] ^
[ 67.617860] ffff0004c26e9780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 67.625421] ffff0004c26e9800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.632981] ==================================================================
[ 67.640535] Disabling lock debugging due to kernel taint
File descriptor[ 67.646100] Unable to handle kernel paging request at virtual address fabb801d4000018d
in bad state
[ 67.655456] Mem abort info:
[ 67.659619] ESR = 0x96000004
[ 67.662801] EC = 0x25: DABT (current EL), IL = 32 bits
[ 67.668225] SET = 0, FnV = 0
[ 67.671375] EA = 0, S1PTW = 0
[ 67.674613] Data abort info:
[ 67.677587] ISV = 0, ISS = 0x00000004
[ 67.681522] CM = 0, WnR = 0
[ 67.684588] [fabb801d4000018d] address between user and kernel address ranges
[ 67.691849] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 67.697470] Modules linked in: usb_f_fs libcomposite configfs ath9k_htc led_class mac80211 libarc4 ath9k_common ath9k_hw ath cfg80211 aes_ce_blk crypto_simd cryptd aes_ce_cipher ghash_ce gf128mul sha2_ce sha1_ce evdev sata_rcar libata xhci_plat_hcd scsi_mod xhci_hcd rene4
[ 67.740467] CPU: 0 PID: 2994 Comm: cat Tainted: G B 5.13.0-rc4+ #8
[ 67.748005] Hardware name: Renesas Salvator-X board based on r8a77951 (DT)
[ 67.754924] pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
[ 67.760974] pc : ffs_data_clear+0x138/0x370 [usb_f_fs]
[ 67.766178] lr : ffs_data_clear+0x124/0x370 [usb_f_fs]
[ 67.771365] sp : ffff800014767ad0
[ 67.774706] x29: ffff800014767ad0 x28: ffff800009cf91c0 x27: ffff0004c54861a0
[ 67.781913] x26: ffff0004dc90b288 x25: 1fffe00099ec10f5 x24: 00000000000a801d
[ 67.789118] x23: 1fffe00099f6953a x22: dfff800000000000 x21: ffff0004cfb4a9d0
[ 67.796322] x20: d5e000ea00000bb1 x19: ffff0004cfb4a800 x18: 0000000000000000
[ 67.803526] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[ 67.810730] x14: 0720072007200720 x13: 0720072007200720 x12: 1ffff000028ecefa
[ 67.817934] x11: ffff7000028ecefa x10: 0720072007200720 x9 : ffff80001132c014
[ 67.825137] x8 : ffff8000147677d8 x7 : ffff8000147677d7 x6 : 0000000000000000
[ 67.832341] x5 : 0000000000000001 x4 : ffff7000028ecefb x3 : 0000000000000001
[ 67.839544] x2 : 0000000000000005 x1 : 1abc001d4000018d x0 : d5e000ea00000c6d
[ 67.846748] Call trace:
[ 67.849218] ffs_data_clear+0x138/0x370 [usb_f_fs]
[ 67.854058] ffs_data_reset+0x20/0x304 [usb_f_fs]
[ 67.858810] ffs_data_closed+0x240/0x244 [usb_f_fs]
[ 67.863736] ffs_ep0_release+0x40/0x54 [usb_f_fs]
[ 67.868488] __fput+0x304/0x580
[ 67.871665] ____fput+0x18/0x24
[ 67.874837] task_work_run+0x104/0x180
[ 67.878622] do_notify_resume+0x458/0x14e0
[ 67.882754] work_pending+0xc/0x5f8
[ 67.886282] Code: b4000a54 9102f280 12000802 d343fc01 (38f66821)
[ 67.892422] ---[ end trace 6d7cedf53d7abbea ]---
Segmentation fault
root@rcar-gen3:~#
==================================================================
Fixes: 4b187fceec3c ("usb: gadget: FunctionFS: add devices management code")
Fixes: 3262ad824307 ("usb: gadget: f_fs: Stop ffs_closed NULL pointer dereference")
Fixes: cdafb6d8b8da ("usb: gadget: f_fs: Fix use-after-free in ffs_free_inst")
Reported-by: Bhuvanesh Surachari <bhuvanesh_surachari@mentor.com>
Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Link: https://lore.kernel.org/r/20210603171507.22514-1-andrew_gabbasov@mentor.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/gadget/function/f_fs.c | 65 +++++++++++++++---------------
1 file changed, 32 insertions(+), 33 deletions(-)
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index f29abc7867d5..366509e89b98 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -250,8 +250,8 @@ EXPORT_SYMBOL_GPL(ffs_lock);
static struct ffs_dev *_ffs_find_dev(const char *name);
static struct ffs_dev *_ffs_alloc_dev(void);
static void _ffs_free_dev(struct ffs_dev *dev);
-static void *ffs_acquire_dev(const char *dev_name);
-static void ffs_release_dev(struct ffs_data *ffs_data);
+static int ffs_acquire_dev(const char *dev_name, struct ffs_data *ffs_data);
+static void ffs_release_dev(struct ffs_dev *ffs_dev);
static int ffs_ready(struct ffs_data *ffs);
static void ffs_closed(struct ffs_data *ffs);
@@ -1554,8 +1554,8 @@ unmapped_value:
static int ffs_fs_get_tree(struct fs_context *fc)
{
struct ffs_sb_fill_data *ctx = fc->fs_private;
- void *ffs_dev;
struct ffs_data *ffs;
+ int ret;
ENTER();
@@ -1574,13 +1574,12 @@ static int ffs_fs_get_tree(struct fs_context *fc)
return -ENOMEM;
}
- ffs_dev = ffs_acquire_dev(ffs->dev_name);
- if (IS_ERR(ffs_dev)) {
+ ret = ffs_acquire_dev(ffs->dev_name, ffs);
+ if (ret) {
ffs_data_put(ffs);
- return PTR_ERR(ffs_dev);
+ return ret;
}
- ffs->private_data = ffs_dev;
ctx->ffs_data = ffs;
return get_tree_nodev(fc, ffs_sb_fill);
}
@@ -1591,7 +1590,6 @@ static void ffs_fs_free_fc(struct fs_context *fc)
if (ctx) {
if (ctx->ffs_data) {
- ffs_release_dev(ctx->ffs_data);
ffs_data_put(ctx->ffs_data);
}
@@ -1630,10 +1628,8 @@ ffs_fs_kill_sb(struct super_block *sb)
ENTER();
kill_litter_super(sb);
- if (sb->s_fs_info) {
- ffs_release_dev(sb->s_fs_info);
+ if (sb->s_fs_info)
ffs_data_closed(sb->s_fs_info);
- }
}
static struct file_system_type ffs_fs_type = {
@@ -1703,6 +1699,7 @@ static void ffs_data_put(struct ffs_data *ffs)
if (refcount_dec_and_test(&ffs->ref)) {
pr_info("%s(): freeing\n", __func__);
ffs_data_clear(ffs);
+ ffs_release_dev(ffs->private_data);
BUG_ON(waitqueue_active(&ffs->ev.waitq) ||
swait_active(&ffs->ep0req_completion.wait) ||
waitqueue_active(&ffs->wait));
@@ -3032,6 +3029,7 @@ static inline struct f_fs_opts *ffs_do_functionfs_bind(struct usb_function *f,
struct ffs_function *func = ffs_func_from_usb(f);
struct f_fs_opts *ffs_opts =
container_of(f->fi, struct f_fs_opts, func_inst);
+ struct ffs_data *ffs_data;
int ret;
ENTER();
@@ -3046,12 +3044,13 @@ static inline struct f_fs_opts *ffs_do_functionfs_bind(struct usb_function *f,
if (!ffs_opts->no_configfs)
ffs_dev_lock();
ret = ffs_opts->dev->desc_ready ? 0 : -ENODEV;
- func->ffs = ffs_opts->dev->ffs_data;
+ ffs_data = ffs_opts->dev->ffs_data;
if (!ffs_opts->no_configfs)
ffs_dev_unlock();
if (ret)
return ERR_PTR(ret);
+ func->ffs = ffs_data;
func->conf = c;
func->gadget = c->cdev->gadget;
@@ -3506,6 +3505,7 @@ static void ffs_free_inst(struct usb_function_instance *f)
struct f_fs_opts *opts;
opts = to_f_fs_opts(f);
+ ffs_release_dev(opts->dev);
ffs_dev_lock();
_ffs_free_dev(opts->dev);
ffs_dev_unlock();
@@ -3693,47 +3693,48 @@ static void _ffs_free_dev(struct ffs_dev *dev)
{
list_del(&dev->entry);
- /* Clear the private_data pointer to stop incorrect dev access */
- if (dev->ffs_data)
- dev->ffs_data->private_data = NULL;
-
kfree(dev);
if (list_empty(&ffs_devices))
functionfs_cleanup();
}
-static void *ffs_acquire_dev(const char *dev_name)
+static int ffs_acquire_dev(const char *dev_name, struct ffs_data *ffs_data)
{
+ int ret = 0;
struct ffs_dev *ffs_dev;
ENTER();
ffs_dev_lock();
ffs_dev = _ffs_find_dev(dev_name);
- if (!ffs_dev)
- ffs_dev = ERR_PTR(-ENOENT);
- else if (ffs_dev->mounted)
- ffs_dev = ERR_PTR(-EBUSY);
- else if (ffs_dev->ffs_acquire_dev_callback &&
- ffs_dev->ffs_acquire_dev_callback(ffs_dev))
- ffs_dev = ERR_PTR(-ENOENT);
- else
+ if (!ffs_dev) {
+ ret = -ENOENT;
+ } else if (ffs_dev->mounted) {
+ ret = -EBUSY;
+ } else if (ffs_dev->ffs_acquire_dev_callback &&
+ ffs_dev->ffs_acquire_dev_callback(ffs_dev)) {
+ ret = -ENOENT;
+ } else {
ffs_dev->mounted = true;
+ ffs_dev->ffs_data = ffs_data;
+ ffs_data->private_data = ffs_dev;
+ }
ffs_dev_unlock();
- return ffs_dev;
+ return ret;
}
-static void ffs_release_dev(struct ffs_data *ffs_data)
+static void ffs_release_dev(struct ffs_dev *ffs_dev)
{
- struct ffs_dev *ffs_dev;
-
ENTER();
ffs_dev_lock();
- ffs_dev = ffs_data->private_data;
- if (ffs_dev) {
+ if (ffs_dev && ffs_dev->mounted) {
ffs_dev->mounted = false;
+ if (ffs_dev->ffs_data) {
+ ffs_dev->ffs_data->private_data = NULL;
+ ffs_dev->ffs_data = NULL;
+ }
if (ffs_dev->ffs_release_dev_callback)
ffs_dev->ffs_release_dev_callback(ffs_dev);
@@ -3761,7 +3762,6 @@ static int ffs_ready(struct ffs_data *ffs)
}
ffs_obj->desc_ready = true;
- ffs_obj->ffs_data = ffs;
if (ffs_obj->ffs_ready_callback) {
ret = ffs_obj->ffs_ready_callback(ffs);
@@ -3789,7 +3789,6 @@ static void ffs_closed(struct ffs_data *ffs)
goto done;
ffs_obj->desc_ready = false;
- ffs_obj->ffs_data = NULL;
if (test_and_clear_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags) &&
ffs_obj->ffs_closed_callback)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 607/700] usb: dwc2: Dont reset the core after setting turnaround time
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (605 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 606/700] usb: gadget: f_fs: Fix setting of device and driver data cross-references Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 608/700] eeprom: idt_89hpesx: Put fwnode in matching case during ->probe() Greg Kroah-Hartman
` (98 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Clément Lassieur, Sasha Levin
From: Clément Lassieur <clement@lassieur.org>
[ Upstream commit aafe93516b8567ab5864e1f4cd3eeabc54fb0e5a ]
Every time the hub signals a reset while we (device) are hsotg->connected,
dwc2_hsotg_core_init_disconnected() is called, which in turn calls
dwc2_hs_phy_init().
GUSBCFG.USBTrdTim is cleared upon Core Soft Reset, so if
hsotg->params.phy_utmi_width is 8-bit, the value of GUSBCFG.USBTrdTim (the
default one: 0x5, corresponding to 16-bit) is always different from
hsotg->params.phy_utmi_width, thus dwc2_core_reset() is called every
time (usbcfg != usbcfg_old), which causes 2 issues:
1) The call to dwc2_core_reset() does another reset 300us after the initial
Chirp K of the first reset (which should last at least Tuch = 1ms), and
messes up the High-speed Detection Handshake: both hub and device drive
current into the D+ and D- lines at the same time.
2) GUSBCFG.USBTrdTim is cleared by the second reset, so its value is always
the default one (0x5).
Setting GUSBCFG.USBTrdTim after the potential call to dwc2_core_reset()
fixes both issues. It is now set even when select_phy is false because the
cost of the Core Soft Reset is removed.
Fixes: 1e868545f2bb ("usb: dwc2: gadget: Move gadget phy init into core phy init")
Signed-off-by: Clément Lassieur <clement@lassieur.org>
Link: https://lore.kernel.org/r/20210603155921.940651-1-clement@lassieur.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/dwc2/core.c | 30 +++++++++++++++++++++---------
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index fec17a2d2447..15911ac7582b 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -1167,15 +1167,6 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
usbcfg &= ~(GUSBCFG_ULPI_UTMI_SEL | GUSBCFG_PHYIF16);
if (hsotg->params.phy_utmi_width == 16)
usbcfg |= GUSBCFG_PHYIF16;
-
- /* Set turnaround time */
- if (dwc2_is_device_mode(hsotg)) {
- usbcfg &= ~GUSBCFG_USBTRDTIM_MASK;
- if (hsotg->params.phy_utmi_width == 16)
- usbcfg |= 5 << GUSBCFG_USBTRDTIM_SHIFT;
- else
- usbcfg |= 9 << GUSBCFG_USBTRDTIM_SHIFT;
- }
break;
default:
dev_err(hsotg->dev, "FS PHY selected at HS!\n");
@@ -1197,6 +1188,24 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
return retval;
}
+static void dwc2_set_turnaround_time(struct dwc2_hsotg *hsotg)
+{
+ u32 usbcfg;
+
+ if (hsotg->params.phy_type != DWC2_PHY_TYPE_PARAM_UTMI)
+ return;
+
+ usbcfg = dwc2_readl(hsotg, GUSBCFG);
+
+ usbcfg &= ~GUSBCFG_USBTRDTIM_MASK;
+ if (hsotg->params.phy_utmi_width == 16)
+ usbcfg |= 5 << GUSBCFG_USBTRDTIM_SHIFT;
+ else
+ usbcfg |= 9 << GUSBCFG_USBTRDTIM_SHIFT;
+
+ dwc2_writel(hsotg, usbcfg, GUSBCFG);
+}
+
int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
{
u32 usbcfg;
@@ -1214,6 +1223,9 @@ int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
retval = dwc2_hs_phy_init(hsotg, select_phy);
if (retval)
return retval;
+
+ if (dwc2_is_device_mode(hsotg))
+ dwc2_set_turnaround_time(hsotg);
}
if (hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_ULPI &&
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 608/700] eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (606 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 607/700] usb: dwc2: Dont reset the core after setting turnaround time Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 609/700] eeprom: idt_89hpesx: Restore printing the unsupported fwnode name Greg Kroah-Hartman
` (97 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Huy Duong, Andy Shevchenko, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit 3f6ee1c095156a74ab2df605af13020f1ce3e600 ]
device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.
Fixes: db15d73e5f0e ("eeprom: idt_89hpesx: Support both ACPI and OF probing")
Cc: Huy Duong <qhuyduong@hotmail.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210607221757.81465-1-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/misc/eeprom/idt_89hpesx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
index 81c70e5bc168..45a61a1f9e98 100644
--- a/drivers/misc/eeprom/idt_89hpesx.c
+++ b/drivers/misc/eeprom/idt_89hpesx.c
@@ -1161,6 +1161,7 @@ static void idt_get_fw_data(struct idt_89hpesx_dev *pdev)
else /* if (!fwnode_property_read_bool(node, "read-only")) */
pdev->eero = false;
+ fwnode_handle_put(fwnode);
dev_info(dev, "EEPROM of %d bytes found by 0x%x",
pdev->eesize, pdev->eeaddr);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 609/700] eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (607 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 608/700] eeprom: idt_89hpesx: Put fwnode in matching case during ->probe() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 610/700] thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default() Greg Kroah-Hartman
` (96 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Huy Duong, Andy Shevchenko, Sasha Levin
From: Andy Shevchenko <andy.shevchenko@gmail.com>
[ Upstream commit e0db3deea73ba418bf5dc21f5a4e32ca87d16dde ]
When iterating over child firmware nodes restore printing the name of ones
that are not supported.
While at it, refactor loop body to clearly show that we stop at the first match.
Fixes: db15d73e5f0e ("eeprom: idt_89hpesx: Support both ACPI and OF probing")
Cc: Huy Duong <qhuyduong@hotmail.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210607221757.81465-2-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/misc/eeprom/idt_89hpesx.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
index 45a61a1f9e98..3e4a594c110b 100644
--- a/drivers/misc/eeprom/idt_89hpesx.c
+++ b/drivers/misc/eeprom/idt_89hpesx.c
@@ -1126,11 +1126,10 @@ static void idt_get_fw_data(struct idt_89hpesx_dev *pdev)
device_for_each_child_node(dev, fwnode) {
ee_id = idt_ee_match_id(fwnode);
- if (!ee_id) {
- dev_warn(dev, "Skip unsupported EEPROM device");
- continue;
- } else
+ if (ee_id)
break;
+
+ dev_warn(dev, "Skip unsupported EEPROM device %pfw\n", fwnode);
}
/* If there is no fwnode EEPROM device, then set zero size */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 610/700] thunderbolt: Bond lanes only when dual_link_port != NULL in alloc_dev_default()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (608 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 609/700] eeprom: idt_89hpesx: Restore printing the unsupported fwnode name Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 611/700] mtd: spinand: Fix double counting of ECC stats Greg Kroah-Hartman
` (95 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, kernel test robot, Dan Carpenter,
Yehezkel Bernat, Mika Westerberg, Sasha Levin
From: Mika Westerberg <mika.westerberg@linux.intel.com>
[ Upstream commit a0d36fa1065901f939b04587a09c65303a64ac88 ]
We should not dereference ->dual_link_port if it is NULL and lane bonding
is requested. For this reason move lane bonding configuration happen
inside the block where ->dual_link_port != NULL.
Fixes: 54509f5005ca ("thunderbolt: Add KUnit tests for path walking")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Yehezkel Bernat <YehezkelShB@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/thunderbolt/test.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c
index 464c2d37b992..e254f8c37cb7 100644
--- a/drivers/thunderbolt/test.c
+++ b/drivers/thunderbolt/test.c
@@ -259,14 +259,14 @@ static struct tb_switch *alloc_dev_default(struct kunit *test,
if (port->dual_link_port && upstream_port->dual_link_port) {
port->dual_link_port->remote = upstream_port->dual_link_port;
upstream_port->dual_link_port->remote = port->dual_link_port;
- }
- if (bonded) {
- /* Bonding is used */
- port->bonded = true;
- port->dual_link_port->bonded = true;
- upstream_port->bonded = true;
- upstream_port->dual_link_port->bonded = true;
+ if (bonded) {
+ /* Bonding is used */
+ port->bonded = true;
+ port->dual_link_port->bonded = true;
+ upstream_port->bonded = true;
+ upstream_port->dual_link_port->bonded = true;
+ }
}
return sw;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 611/700] mtd: spinand: Fix double counting of ECC stats
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (609 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 612/700] kunit: Fix result propagation for parameterised tests Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, YouChing Lin, Miquel Raynal, Sasha Levin
From: Miquel Raynal <miquel.raynal@bootlin.com>
[ Upstream commit c93081b265735db2417f0964718516044d06b1a2 ]
In the raw NAND world, ECC engines increment ecc_stats and the final
caller is responsible for returning -EBADMSG if the verification
failed.
In the SPI-NAND world it was a bit different until now because there was
only one possible ECC engine: the on-die one. Indeed, the
spinand_mtd_read() call was incrementing the ecc_stats counters
depending on the outcome of spinand_check_ecc_status() directly.
So now let's split the logic like this:
- spinand_check_ecc_status() is specific to the SPI-NAND on-die engine
and is kept very simple: it just returns the ECC status (bonus point:
the content of this helper can be overloaded).
- spinand_ondie_ecc_finish_io_req() is the caller of
spinand_check_ecc_status() and will increment the counters and
eventually return -EBADMSG.
- spinand_mtd_read() is not tied to the on-die ECC implementation and
should be able to handle results coming from other ECC engines: it has
the responsibility of returning the maximum number of bitflips which
happened during the entire operation as this is the only helper that
is aware that several pages may be read in a row.
Fixes: 945845b54c9c ("mtd: spinand: Instantiate a SPI-NAND on-die ECC engine")
Reported-by: YouChing Lin <ycllin@mxic.com.tw>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: YouChing Lin <ycllin@mxic.com.tw>
Link: https://lore.kernel.org/linux-mtd/20210527084345.208215-1-miquel.raynal@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/nand/spi/core.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 17f63f95f4a2..54ae540bc66b 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -290,6 +290,8 @@ static int spinand_ondie_ecc_finish_io_req(struct nand_device *nand,
{
struct spinand_ondie_ecc_conf *engine_conf = nand->ecc.ctx.priv;
struct spinand_device *spinand = nand_to_spinand(nand);
+ struct mtd_info *mtd = spinand_to_mtd(spinand);
+ int ret;
if (req->mode == MTD_OPS_RAW)
return 0;
@@ -299,7 +301,13 @@ static int spinand_ondie_ecc_finish_io_req(struct nand_device *nand,
return 0;
/* Finish a page write: check the status, report errors/bitflips */
- return spinand_check_ecc_status(spinand, engine_conf->status);
+ ret = spinand_check_ecc_status(spinand, engine_conf->status);
+ if (ret == -EBADMSG)
+ mtd->ecc_stats.failed++;
+ else if (ret > 0)
+ mtd->ecc_stats.corrected += ret;
+
+ return ret;
}
static struct nand_ecc_engine_ops spinand_ondie_ecc_engine_ops = {
@@ -620,13 +628,10 @@ static int spinand_mtd_read(struct mtd_info *mtd, loff_t from,
if (ret < 0 && ret != -EBADMSG)
break;
- if (ret == -EBADMSG) {
+ if (ret == -EBADMSG)
ecc_failed = true;
- mtd->ecc_stats.failed++;
- } else {
- mtd->ecc_stats.corrected += ret;
+ else
max_bitflips = max_t(unsigned int, max_bitflips, ret);
- }
ret = 0;
ops->retlen += iter.req.datalen;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 612/700] kunit: Fix result propagation for parameterised tests
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (610 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 611/700] mtd: spinand: Fix double counting of ECC stats Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 613/700] iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
` (93 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, David Gow, Marco Elver,
Brendan Higgins, Shuah Khan, Sasha Levin
From: David Gow <davidgow@google.com>
[ Upstream commit 384426bd101cb3cd580b18de19d4891ec5ca5bf9 ]
When one parameter of a parameterised test failed, its failure would be
propagated to the overall test, but not to the suite result (unless it
was the last parameter).
This is because test_case->success was being reset to the test->success
result after each parameter was used, so a failing test's result would
be overwritten by a non-failing result. The overall test result was
handled in a third variable, test_result, but this was discarded after
the status line was printed.
Instead, just propagate the result after each parameter run.
Signed-off-by: David Gow <davidgow@google.com>
Fixes: fadb08e7c750 ("kunit: Support for Parameterized Testing")
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
lib/kunit/test.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index ec9494e914ef..c2b7248ebc9e 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -343,7 +343,7 @@ static void kunit_run_case_catch_errors(struct kunit_suite *suite,
context.test_case = test_case;
kunit_try_catch_run(try_catch, &context);
- test_case->success = test->success;
+ test_case->success &= test->success;
}
int kunit_run_tests(struct kunit_suite *suite)
@@ -355,7 +355,7 @@ int kunit_run_tests(struct kunit_suite *suite)
kunit_suite_for_each_test_case(suite, test_case) {
struct kunit test = { .param_value = NULL, .param_index = 0 };
- bool test_success = true;
+ test_case->success = true;
if (test_case->generate_params) {
/* Get initial param. */
@@ -365,7 +365,6 @@ int kunit_run_tests(struct kunit_suite *suite)
do {
kunit_run_case_catch_errors(suite, test_case, &test);
- test_success &= test_case->success;
if (test_case->generate_params) {
if (param_desc[0] == '\0') {
@@ -387,7 +386,7 @@ int kunit_run_tests(struct kunit_suite *suite)
}
} while (test.param_value);
- kunit_print_ok_not_ok(&test, true, test_success,
+ kunit_print_ok_not_ok(&test, true, test_case->success,
kunit_test_case_num(suite, test_case),
test_case->name);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 613/700] iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (611 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 612/700] kunit: Fix result propagation for parameterised tests Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 614/700] iio: adc: hx711: " Greg Kroah-Hartman
` (92 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Eugen Hristev,
Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 8f884758966259fa8c50c137ac6d4ce9bb7859db ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-2-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/at91-sama5d2_adc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index a7826f097b95..d356b515df09 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -403,7 +403,8 @@ struct at91_adc_state {
struct at91_adc_dma dma_st;
struct at91_adc_touch touch_st;
struct iio_dev *indio_dev;
- u16 buffer[AT91_BUFFER_MAX_HWORDS];
+ /* Ensure naturally aligned timestamp */
+ u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8);
/*
* lock to prevent concurrent 'single conversion' requests through
* sysfs.
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 614/700] iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (612 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 615/700] iio: adc: mxs-lradc: " Greg Kroah-Hartman
` (91 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andreas Klinger,
Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit afe2a789fbf7acd1a05407fc7839cc08d23825e3 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Found during an audit of all calls of this function.
Fixes: d3bf60450d47 ("iio: hx711: add triggered buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-3-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/hx711.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index 6a173531d355..f7ee856a6b8b 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -86,9 +86,9 @@ struct hx711_data {
struct mutex lock;
/*
* triggered buffer
- * 2x32-bit channel + 64-bit timestamp
+ * 2x32-bit channel + 64-bit naturally aligned timestamp
*/
- u32 buffer[4];
+ u32 buffer[4] __aligned(8);
/*
* delay after a rising edge on SCK until the data is ready DOUT
* this is dependent on the hx711 where the datasheet tells a
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 615/700] iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (613 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 614/700] iio: adc: hx711: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 616/700] iio: adc: ti-ads8688: Fix alignment of buffer " Greg Kroah-Hartman
` (90 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Andreas Klinger,
Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 6a6be221b8bd561b053f0701ec752a5ed9007f69 ]
To make code more readable, use a structure to express the channel
layout and ensure the timestamp is 8 byte aligned.
Add a comment on why the buffer is the size it is as not immediately
obvious.
Found during an audit of all calls of this function.
Fixes: 6dd112b9f85e ("iio: adc: mxs-lradc: Add support for ADC driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-4-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/mxs-lradc-adc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c
index 30e29f44ebd2..c480cb489c1a 100644
--- a/drivers/iio/adc/mxs-lradc-adc.c
+++ b/drivers/iio/adc/mxs-lradc-adc.c
@@ -115,7 +115,8 @@ struct mxs_lradc_adc {
struct device *dev;
void __iomem *base;
- u32 buffer[10];
+ /* Maximum of 8 channels + 8 byte ts */
+ u32 buffer[10] __aligned(8);
struct iio_trigger *trig;
struct completion completion;
spinlock_t lock;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 616/700] iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
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` (614 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 617/700] iio: magn: rm3100: " Greg Kroah-Hartman
` (89 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Nuno Sá, Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 61fa5dfa5f52806f5ce37a0ba5712c271eb22f98 ]
Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.
Fixes: f214ff521fb1 ("iio: ti-ads8688: Update buffer allocation for timestamps")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-5-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/ti-ads8688.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c
index 16bcb37eebb7..79c803537dc4 100644
--- a/drivers/iio/adc/ti-ads8688.c
+++ b/drivers/iio/adc/ti-ads8688.c
@@ -383,7 +383,8 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p)
{
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
- u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)];
+ /* Ensure naturally aligned timestamp */
+ u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)] __aligned(8);
int i, j = 0;
for (i = 0; i < indio_dev->masklength; i++) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 617/700] iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
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` (615 preceding siblings ...)
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@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 618/700] iio: light: vcnl4000: Fix buffer alignment " Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Song Qiang,
Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit b8f939fd20690623cb24845a563e7bc1e4a21482 ]
Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.
Here an explicit structure is not used, because this buffer is used in
a non-trivial way for data repacking.
Fixes: 121354b2eceb ("iio: magnetometer: Add driver support for PNI RM3100")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Song Qiang <songqiang1304521@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-6-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/magnetometer/rm3100-core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/magnetometer/rm3100-core.c b/drivers/iio/magnetometer/rm3100-core.c
index 7242897a05e9..720234a91db1 100644
--- a/drivers/iio/magnetometer/rm3100-core.c
+++ b/drivers/iio/magnetometer/rm3100-core.c
@@ -78,7 +78,8 @@ struct rm3100_data {
bool use_interrupt;
int conversion_time;
int scale;
- u8 buffer[RM3100_SCAN_BYTES];
+ /* Ensure naturally aligned timestamp */
+ u8 buffer[RM3100_SCAN_BYTES] __aligned(8);
struct iio_trigger *drdy_trig;
/*
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 618/700] iio: light: vcnl4000: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (616 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 617/700] iio: magn: rm3100: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 619/700] ASoC: fsl_spdif: Fix error handler with pm_runtime_enable Greg Kroah-Hartman
` (87 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Mathieu Othacehe,
Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit dce793c0ab00c35039028fdcd5ce123805a01361 ]
Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.
Here an explicit structure is not used, because the holes would
necessitate the addition of an explict memset(), to avoid a kernel
data leak, making for a less minimal fix.
Found during an audit of all callers of iio_push_to_buffers_with_timestamp()
Fixes: 8fe78d5261e7 ("iio: vcnl4000: Add buffer support for VCNL4010/20.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Mathieu Othacehe <m.othacehe@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-7-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/light/vcnl4000.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index fff4b36b8b58..f4feb44903b3 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -910,7 +910,7 @@ static irqreturn_t vcnl4010_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct vcnl4000_data *data = iio_priv(indio_dev);
const unsigned long *active_scan_mask = indio_dev->active_scan_mask;
- u16 buffer[8] = {0}; /* 1x16-bit + ts */
+ u16 buffer[8] __aligned(8) = {0}; /* 1x16-bit + naturally aligned ts */
bool data_read = false;
unsigned long isr;
int val = 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 619/700] ASoC: fsl_spdif: Fix error handler with pm_runtime_enable
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (617 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 618/700] iio: light: vcnl4000: Fix buffer alignment " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 620/700] staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt() Greg Kroah-Hartman
` (86 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shengjiu Wang, Mark Brown, Sasha Levin
From: Shengjiu Wang <shengjiu.wang@nxp.com>
[ Upstream commit 28108d71ee11a7232e1102effab3361049dcd3b8 ]
There is error message when defer probe happens:
fsl-spdif-dai 2dab0000.spdif: Unbalanced pm_runtime_enable!
Fix the error handler with pm_runtime_enable and add
fsl_spdif_remove() for pm_runtime_disable.
Fixes: 9cb2b3796e08 ("ASoC: fsl_spdif: Add pm runtime function")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1623392318-26304-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/fsl/fsl_spdif.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 174e558224d8..e5d366b2a6a4 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1400,16 +1400,29 @@ static int fsl_spdif_probe(struct platform_device *pdev)
&spdif_priv->cpu_dai_drv, 1);
if (ret) {
dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
- return ret;
+ goto err_pm_disable;
}
ret = imx_pcm_dma_init(pdev, IMX_SPDIF_DMABUF_SIZE);
- if (ret && ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "imx_pcm_dma_init failed: %d\n", ret);
+ if (ret) {
+ dev_err_probe(&pdev->dev, ret, "imx_pcm_dma_init failed\n");
+ goto err_pm_disable;
+ }
+
+ return ret;
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
return ret;
}
+static int fsl_spdif_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+
+ return 0;
+}
+
#ifdef CONFIG_PM
static int fsl_spdif_runtime_suspend(struct device *dev)
{
@@ -1512,6 +1525,7 @@ static struct platform_driver fsl_spdif_driver = {
.pm = &fsl_spdif_pm,
},
.probe = fsl_spdif_probe,
+ .remove = fsl_spdif_remove,
};
module_platform_driver(fsl_spdif_driver);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 620/700] staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (618 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 619/700] ASoC: fsl_spdif: Fix error handler with pm_runtime_enable Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 621/700] staging: gdm724x: check for overflow in gdm_lte_netif_rx() Greg Kroah-Hartman
` (85 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 4a36e160856db8a8ddd6a3d2e5db5a850ab87f82 ]
There needs to be a check to verify that we don't read beyond the end
of "buf". This function is called from do_rx(). The "buf" is the USB
transfer_buffer and "len" is "urb->actual_length".
Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YMcnl4zCwGWGDVMG@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/gdm724x/gdm_lte.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index 571f47d39484..a41af7aa74ec 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -677,6 +677,7 @@ static void gdm_lte_multi_sdu_pkt(struct phy_dev *phy_dev, char *buf, int len)
struct sdu *sdu = NULL;
u8 endian = phy_dev->get_endian(phy_dev->priv_dev);
u8 *data = (u8 *)multi_sdu->data;
+ int copied;
u16 i = 0;
u16 num_packet;
u16 hci_len;
@@ -688,6 +689,12 @@ static void gdm_lte_multi_sdu_pkt(struct phy_dev *phy_dev, char *buf, int len)
num_packet = gdm_dev16_to_cpu(endian, multi_sdu->num_packet);
for (i = 0; i < num_packet; i++) {
+ copied = data - multi_sdu->data;
+ if (len < copied + sizeof(*sdu)) {
+ pr_err("rx prevent buffer overflow");
+ return;
+ }
+
sdu = (struct sdu *)data;
cmd_evt = gdm_dev16_to_cpu(endian, sdu->cmd_evt);
@@ -698,7 +705,8 @@ static void gdm_lte_multi_sdu_pkt(struct phy_dev *phy_dev, char *buf, int len)
pr_err("rx sdu wrong hci %04x\n", cmd_evt);
return;
}
- if (hci_len < 12) {
+ if (hci_len < 12 ||
+ len < copied + sizeof(*sdu) + (hci_len - 12)) {
pr_err("rx sdu invalid len %d\n", hci_len);
return;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 621/700] staging: gdm724x: check for overflow in gdm_lte_netif_rx()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (619 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 620/700] staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 622/700] staging: rtl8712: fix error handling in r871xu_drv_init Greg Kroah-Hartman
` (84 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dan Carpenter, Sasha Levin
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 7002b526f4ff1f6da34356e67085caafa6be383a ]
This code assumes that "len" is at least 62 bytes, but we need a check
to prevent a read overflow.
Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YMcoTPsCYlhh2TQo@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/gdm724x/gdm_lte.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index a41af7aa74ec..bd5f87433404 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -611,10 +611,12 @@ static void gdm_lte_netif_rx(struct net_device *dev, char *buf,
* bytes (99,130,83,99 dec)
*/
} __packed;
- void *addr = buf + sizeof(struct iphdr) +
- sizeof(struct udphdr) +
- offsetof(struct dhcp_packet, chaddr);
- ether_addr_copy(nic->dest_mac_addr, addr);
+ int offset = sizeof(struct iphdr) +
+ sizeof(struct udphdr) +
+ offsetof(struct dhcp_packet, chaddr);
+ if (offset + ETH_ALEN > len)
+ return;
+ ether_addr_copy(nic->dest_mac_addr, buf + offset);
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 622/700] staging: rtl8712: fix error handling in r871xu_drv_init
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (620 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 621/700] staging: gdm724x: check for overflow in gdm_lte_netif_rx() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 623/700] staging: rtl8712: fix memory leak in rtl871x_load_fw_cb Greg Kroah-Hartman
` (83 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Sasha Levin
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit d1d3e3cdfda8eb91f0e24be7ec8be1e6e01b3a1c ]
Previous error handling path was unique for all
possible errors and there was unnecessary branching.
Also, one step for freeing drv_sw was missing. All
these problems was fixed by restructuring error
handling path.
Also, moved out free_netdev() from r8712_free_drv_sw() for
correct error handling.
Fixes: 2865d42c78a9 ("staging: r8712u: Add the new driver to the mainline kernel")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/febb00f72354449bb4d305f373d6d2f47e539ab4.1623620630.git.paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/rtl8712/os_intfs.c | 4 ----
drivers/staging/rtl8712/usb_intf.c | 24 ++++++++++++++----------
2 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 0c3ae8495afb..2214aca09730 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -328,8 +328,6 @@ int r8712_init_drv_sw(struct _adapter *padapter)
void r8712_free_drv_sw(struct _adapter *padapter)
{
- struct net_device *pnetdev = padapter->pnetdev;
-
r8712_free_cmd_priv(&padapter->cmdpriv);
r8712_free_evt_priv(&padapter->evtpriv);
r8712_DeInitSwLeds(padapter);
@@ -339,8 +337,6 @@ void r8712_free_drv_sw(struct _adapter *padapter)
_r8712_free_sta_priv(&padapter->stapriv);
_r8712_free_recv_priv(&padapter->recvpriv);
mp871xdeinit(padapter);
- if (pnetdev)
- free_netdev(pnetdev);
}
static void enable_video_mode(struct _adapter *padapter, int cbw40_value)
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index dc21e7743349..b760bc355937 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -361,7 +361,7 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
/* step 1. */
pnetdev = r8712_init_netdev();
if (!pnetdev)
- goto error;
+ goto put_dev;
padapter = netdev_priv(pnetdev);
disable_ht_for_spec_devid(pdid, padapter);
pdvobjpriv = &padapter->dvobjpriv;
@@ -381,16 +381,16 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
* initialize the dvobj_priv
*/
if (!padapter->dvobj_init) {
- goto error;
+ goto put_dev;
} else {
status = padapter->dvobj_init(padapter);
if (status != _SUCCESS)
- goto error;
+ goto free_netdev;
}
/* step 4. */
status = r8712_init_drv_sw(padapter);
if (status)
- goto error;
+ goto dvobj_deinit;
/* step 5. read efuse/eeprom data and get mac_addr */
{
int i, offset;
@@ -570,17 +570,20 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
}
/* step 6. Load the firmware asynchronously */
if (rtl871x_load_fw(padapter))
- goto error;
+ goto deinit_drv_sw;
spin_lock_init(&padapter->lock_rx_ff0_filter);
mutex_init(&padapter->mutex_start);
return 0;
-error:
+
+deinit_drv_sw:
+ r8712_free_drv_sw(padapter);
+dvobj_deinit:
+ padapter->dvobj_deinit(padapter);
+free_netdev:
+ free_netdev(pnetdev);
+put_dev:
usb_put_dev(udev);
usb_set_intfdata(pusb_intf, NULL);
- if (padapter && padapter->dvobj_deinit)
- padapter->dvobj_deinit(padapter);
- if (pnetdev)
- free_netdev(pnetdev);
return -ENODEV;
}
@@ -612,6 +615,7 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
r8712_stop_drv_timers(padapter);
r871x_dev_unload(padapter);
r8712_free_drv_sw(padapter);
+ free_netdev(pnetdev);
/* decrease the reference count of the usb device structure
* when disconnect
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 623/700] staging: rtl8712: fix memory leak in rtl871x_load_fw_cb
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (621 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 622/700] staging: rtl8712: fix error handling in r871xu_drv_init Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 624/700] coresight: core: Fix use of uninitialized pointer Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pavel Skripkin, Sasha Levin
From: Pavel Skripkin <paskripkin@gmail.com>
[ Upstream commit e02a3b945816a77702a2769a70ef5f9b06e49d54 ]
There is a leak in rtl8712 driver.
The problem was in non-freed adapter data if
firmware load failed.
This leak can be reproduced with this code:
https://syzkaller.appspot.com/text?tag=ReproC&x=16612f02d00000,
Autoload must fail (to not hit memory leak reported by syzkaller)
There are 2 possible ways how rtl871x_load_fw_cb() and
r871xu_dev_remove() can be called (in case of fw load error).
1st case:
r871xu_dev_remove() then rtl871x_load_fw_cb()
In this case r871xu_dev_remove() will wait for
completion and then will jump to the end, because
rtl871x_load_fw_cb() set intfdata to NULL:
if (pnetdev) {
struct _adapter *padapter = netdev_priv(pnetdev);
/* never exit with a firmware callback pending */
wait_for_completion(&padapter->rtl8712_fw_ready);
pnetdev = usb_get_intfdata(pusb_intf);
usb_set_intfdata(pusb_intf, NULL);
if (!pnetdev)
goto firmware_load_fail;
... clean up code here ...
}
2nd case:
rtl871x_load_fw_cb() then r871xu_dev_remove()
In this case pnetdev (from code snippet above) will
be zero (because rtl871x_load_fw_cb() set it to NULL)
And clean up code won't be executed again.
So, in all cases we need to free adapted data in rtl871x_load_fw_cb(),
because disconnect function cannot take care of it. And there won't be
any race conditions, because complete() call happens after setting
intfdata to NULL.
In previous patch I moved out free_netdev() from r8712_free_drv_sw()
and that's why now it's possible to free adapter data and then call
complete.
Fixes: 8c213fa59199 ("staging: r8712u: Use asynchronous firmware loading")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/81e68fe0194499cc2e7692d35bc4dcf167827d8f.1623620630.git.paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/rtl8712/hal_init.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 715f1fe8b472..22974277afa0 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -40,7 +40,10 @@ static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
dev_err(&udev->dev, "r8712u: Firmware request failed\n");
usb_put_dev(udev);
usb_set_intfdata(usb_intf, NULL);
+ r8712_free_drv_sw(adapter);
+ adapter->dvobj_deinit(adapter);
complete(&adapter->rtl8712_fw_ready);
+ free_netdev(adapter->pnetdev);
return;
}
adapter->fw = firmware;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 624/700] coresight: core: Fix use of uninitialized pointer
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (622 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 623/700] staging: rtl8712: fix memory leak in rtl871x_load_fw_cb Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 625/700] staging: mt7621-dts: fix pci address for PCI memory range Greg Kroah-Hartman
` (81 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Junhao He, Qi Liu, Suzuki K Poulose,
Mathieu Poirier, Sasha Levin
From: Junhao He <hejunhao2@hisilicon.com>
[ Upstream commit d777a8991847729ec4e2a13fcad58c2b00bb19dc ]
Currently the pointer "sink" might be checked before initialized. Fix
this by initializing this pointer.
Link: https://lore.kernel.org/r/1620912469-52222-2-git-send-email-liuqi115@huawei.com
Fixes: 6d578258b955 ("coresight: Make sysfs functional on topologies with per core sink")
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwtracing/coresight/coresight-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index 0062c8935653..237a8c0d6c24 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -595,7 +595,7 @@ static struct coresight_device *
coresight_find_enabled_sink(struct coresight_device *csdev)
{
int i;
- struct coresight_device *sink;
+ struct coresight_device *sink = NULL;
if ((csdev->type == CORESIGHT_DEV_TYPE_SINK ||
csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) &&
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 625/700] staging: mt7621-dts: fix pci address for PCI memory range
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (623 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 624/700] coresight: core: Fix use of uninitialized pointer Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 626/700] usb: phy: tegra: Wait for VBUS wakeup status deassertion on suspend Greg Kroah-Hartman
` (80 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Sergio Paracuellos, Sasha Levin
From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
[ Upstream commit 5b4f167ef3555ec4c334a8dc89c1b44bb2c6bff5 ]
Driver code call 'devm_of_pci_get_host_bridge_resources'
to get resources and properly fill 'bridge->windows' and
'bridge->dma_ranges'. After parsing the ranges and store
as resources, at the end it makes a call to pci function
'pci_add_resource_offset' to set the offset for the
memory resource. To calculate offset, resource start address
subtracts pci address of the range. MT7621 does not need
any offset for the memory resource. Moreover, setting an
offset got into 'WARN_ON' calls from pci devices driver code.
Until now memory range pci_addr was being '0x00000000' and
res->start is '0x60000000' but becase pci controller driver
was manually setting resources and adding them using pci function
'pci_add_resource' where a zero is passed as offset, things
was properly working. Since PCI_IOBASE is defined now for
ralink we don't set nothing manually anymore so we have to
properly fix PCI address for this range to make things work
and the new pci address must be set to '0x60000000'. Doing
in this way the subtract result obtain zero as offset
and pci device driver code properly works.
Fixes: d59578da2bb8 ("staging: mt7621-dts: add dts files")
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210614100617.28753-4-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/mt7621-dts/mt7621.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/mt7621-dts/mt7621.dtsi b/drivers/staging/mt7621-dts/mt7621.dtsi
index 16fc94f65486..b3d08459acc8 100644
--- a/drivers/staging/mt7621-dts/mt7621.dtsi
+++ b/drivers/staging/mt7621-dts/mt7621.dtsi
@@ -508,7 +508,7 @@
bus-range = <0 255>;
ranges = <
- 0x02000000 0 0x00000000 0x60000000 0 0x10000000 /* pci memory */
+ 0x02000000 0 0x60000000 0x60000000 0 0x10000000 /* pci memory */
0x01000000 0 0x00000000 0x1e160000 0 0x00010000 /* io space */
>;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 626/700] usb: phy: tegra: Wait for VBUS wakeup status deassertion on suspend
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (624 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 625/700] staging: mt7621-dts: fix pci address for PCI memory range Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 627/700] usb: phy: tegra: Correct definition of B_SESS_VLD_WAKEUP_EN bit Greg Kroah-Hartman
` (79 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Peter Chen, Dmitry Osipenko,
Sasha Levin, Maxim Schwalm
From: Dmitry Osipenko <digetx@gmail.com>
[ Upstream commit 6f8d39a8ef55efde414b6e574384acbce70c3119 ]
Some devices need an extra delay after losing VBUS, otherwise VBUS may
be detected as active at suspend time, preventing the PHY's suspension
by the VBUS detection sensor. This problem was found on Asus Transformer
TF700T (Tegra30) tablet device, where the USB PHY wakes up immediately
from suspend because VBUS sensor continues to detect VBUS as active after
disconnection. We need to poll the PHY's VBUS wakeup status until it's
deasserted before suspending PHY in order to fix this minor trouble.
Fixes: 35192007d28d ("usb: phy: tegra: Support waking up from a low power mode")
Reported-by: Maxim Schwalm <maxim.schwalm@gmail.com> # Asus TF700T
Tested-by: Maxim Schwalm <maxim.schwalm@gmail.com> # Asus TF700T
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210613145936.9902-1-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/phy/phy-tegra-usb.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index a48452a6172b..10fafcf9801b 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -64,6 +64,7 @@
#define A_VBUS_VLD_WAKEUP_EN BIT(30)
#define USB_PHY_VBUS_WAKEUP_ID 0x408
+#define VBUS_WAKEUP_STS BIT(10)
#define VBUS_WAKEUP_WAKEUP_EN BIT(30)
#define USB1_LEGACY_CTRL 0x410
@@ -642,6 +643,15 @@ static int utmi_phy_power_off(struct tegra_usb_phy *phy)
void __iomem *base = phy->regs;
u32 val;
+ /*
+ * Give hardware time to settle down after VBUS disconnection,
+ * otherwise PHY will immediately wake up from suspend.
+ */
+ if (phy->wakeup_enabled && phy->mode != USB_DR_MODE_HOST)
+ readl_relaxed_poll_timeout(base + USB_PHY_VBUS_WAKEUP_ID,
+ val, !(val & VBUS_WAKEUP_STS),
+ 5000, 100000);
+
utmi_phy_clk_disable(phy);
/* PHY won't resume if reset is asserted */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 627/700] usb: phy: tegra: Correct definition of B_SESS_VLD_WAKEUP_EN bit
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (625 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 626/700] usb: phy: tegra: Wait for VBUS wakeup status deassertion on suspend Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 628/700] serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates Greg Kroah-Hartman
` (78 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dmitry Osipenko, Sasha Levin
From: Dmitry Osipenko <digetx@gmail.com>
[ Upstream commit 7917e90667bc8dce02daa3c2e6df47f6fc9481f7 ]
The B_SESS_VLD_WAKEUP_EN bit 6 was added by a mistake in a previous
commit. This bit corresponds to B_SESS_END_WAKEUP_EN, which we don't use.
The B_VBUS_VLD_WAKEUP_EN doesn't exist at all and B_SESS_VLD_WAKEUP_EN
needs to be in place of it. We don't utilize B-sensors in the driver,
so it never was a problem, nevertheless let's correct the definition of
the bits.
Fixes: 35192007d28d ("usb: phy: tegra: Support waking up from a low power mode")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210613145936.9902-2-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/phy/phy-tegra-usb.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 10fafcf9801b..c0f432d509aa 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -58,8 +58,7 @@
#define USB_WAKEUP_DEBOUNCE_COUNT(x) (((x) & 0x7) << 16)
#define USB_PHY_VBUS_SENSORS 0x404
-#define B_SESS_VLD_WAKEUP_EN BIT(6)
-#define B_VBUS_VLD_WAKEUP_EN BIT(14)
+#define B_SESS_VLD_WAKEUP_EN BIT(14)
#define A_SESS_VLD_WAKEUP_EN BIT(22)
#define A_VBUS_VLD_WAKEUP_EN BIT(30)
@@ -545,7 +544,7 @@ static int utmi_phy_power_on(struct tegra_usb_phy *phy)
val = readl_relaxed(base + USB_PHY_VBUS_SENSORS);
val &= ~(A_VBUS_VLD_WAKEUP_EN | A_SESS_VLD_WAKEUP_EN);
- val &= ~(B_VBUS_VLD_WAKEUP_EN | B_SESS_VLD_WAKEUP_EN);
+ val &= ~(B_SESS_VLD_WAKEUP_EN);
writel_relaxed(val, base + USB_PHY_VBUS_SENSORS);
val = readl_relaxed(base + UTMIP_BAT_CHRG_CFG0);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 628/700] serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (626 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 627/700] usb: phy: tegra: Correct definition of B_SESS_VLD_WAKEUP_EN bit Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 629/700] iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
` (77 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Maciej W. Rozycki, Sasha Levin
From: Maciej W. Rozycki <macro@orcam.me.uk>
[ Upstream commit 78bcae8616ac277d6cb7f38e211493948ed73e30 ]
Support for magic baud rate divisors of 32770 and 32769 used with SMSC
Super I/O chips for extra baud rates of 230400 and 460800 respectively
where base rate is 115200[1] has been added around Linux 2.5.64, which
predates our repo history, but the origin could be identified as commit
2a717aad772f ("Merge with Linux 2.5.64.") with the old MIPS/Linux repo
also at: <git://git.kernel.org/pub/scm/linux/kernel/git/ralf/linux.git>.
Code that is now in `serial8250_do_get_divisor' was added back then to
`serial8250_get_divisor', but that code would only ever trigger if one
of the higher baud rates was actually requested, and that cannot ever
happen, because the earlier call to `serial8250_get_baud_rate' never
returns them. This is because it calls `uart_get_baud_rate' with the
maximum requested being the base rate, that is clk/16 or 115200 for SMSC
chips at their nominal clock rate.
Fix it then and allow UPF_MAGIC_MULTIPLIER baud rates to be selected, by
requesting the maximum baud rate of clk/4 rather than clk/16 if the flag
has been set. Also correct the minimum baud rate, observing that these
ports only support actual (non-magic) divisors of up to 32767 only.
[1] "FDC37M81x, PC98/99 Compliant Enhanced Super I/O Controller with
Keyboard/Mouse Wake-Up", Standard Microsystems Corporation, Rev.
03/27/2000, Table 31 - "Baud Rates", p. 77
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2105190412280.29169@angie.orcam.me.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/8250/8250_port.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 6e141429c980..6d9c494bed7d 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2635,6 +2635,21 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
struct ktermios *old)
{
unsigned int tolerance = port->uartclk / 100;
+ unsigned int min;
+ unsigned int max;
+
+ /*
+ * Handle magic divisors for baud rates above baud_base on SMSC
+ * Super I/O chips. Enable custom rates of clk/4 and clk/8, but
+ * disable divisor values beyond 32767, which are unavailable.
+ */
+ if (port->flags & UPF_MAGIC_MULTIPLIER) {
+ min = port->uartclk / 16 / UART_DIV_MAX >> 1;
+ max = (port->uartclk + tolerance) / 4;
+ } else {
+ min = port->uartclk / 16 / UART_DIV_MAX;
+ max = (port->uartclk + tolerance) / 16;
+ }
/*
* Ask the core to calculate the divisor for us.
@@ -2642,9 +2657,7 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
* slower than nominal still match standard baud rates without
* causing transmission errors.
*/
- return uart_get_baud_rate(port, termios, old,
- port->uartclk / 16 / UART_DIV_MAX,
- (port->uartclk + tolerance) / 16);
+ return uart_get_baud_rate(port, termios, old, min, max);
}
/*
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 629/700] iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (627 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 628/700] serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 630/700] iio: prox: isl29501: " Greg Kroah-Hartman
` (76 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron,
Parthiban Nallathambi, Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit ec90b52c07c0403a6db60d752484ec08d605ead0 ]
Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.
Here an explicit structure is not used, because the holes would
necessitate the addition of an explict memset(), to avoid a potential
kernel data leak, making for a less minimal fix.
Fixes: 55707294c4eb ("iio: light: Add support for vishay vcnl4035")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Parthiban Nallathambi <pn@denx.de>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-8-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/light/vcnl4035.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c
index 73a28e30dddc..1342bbe111ed 100644
--- a/drivers/iio/light/vcnl4035.c
+++ b/drivers/iio/light/vcnl4035.c
@@ -102,7 +102,8 @@ static irqreturn_t vcnl4035_trigger_consumer_handler(int irq, void *p)
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct vcnl4035_data *data = iio_priv(indio_dev);
- u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)];
+ /* Ensure naturally aligned timestamp */
+ u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)] __aligned(8);
int ret;
ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, (int *)buffer);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 630/700] iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (628 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 629/700] iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 631/700] ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK Greg Kroah-Hartman
` (75 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jonathan Cameron, Mathieu Othacehe,
Nuno Sá,
Sasha Levin
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Upstream commit 92babc9938ebbf4050f2fba774836f7edc16a570 ]
Add __aligned(8) to ensure the buffer passed to
iio_push_to_buffers_with_timestamp() is suitable for the naturally
aligned timestamp that will be inserted.
Here an explicit structure is not used, because the holes would
necessitate the addition of an explict memset(), to avoid a kernel
data leak, making for a less minimal fix.
Fixes: 1c28799257bc ("iio: light: isl29501: Add support for the ISL29501 ToF sensor.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Mathieu Othacehe <m.othacehe@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210613152301.571002-9-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/proximity/isl29501.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/proximity/isl29501.c b/drivers/iio/proximity/isl29501.c
index 90e76451c972..5b6ea783795d 100644
--- a/drivers/iio/proximity/isl29501.c
+++ b/drivers/iio/proximity/isl29501.c
@@ -938,7 +938,7 @@ static irqreturn_t isl29501_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct isl29501_private *isl29501 = iio_priv(indio_dev);
const unsigned long *active_mask = indio_dev->active_scan_mask;
- u32 buffer[4] = {}; /* 1x16-bit + ts */
+ u32 buffer[4] __aligned(8) = {}; /* 1x16-bit + naturally aligned ts */
if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask))
isl29501_register_read(isl29501, REG_DISTANCE, buffer);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 631/700] ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (629 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 630/700] iio: prox: isl29501: " Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 632/700] of: Fix truncation of memory sizes on 32-bit platforms Greg Kroah-Hartman
` (74 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Richard Fitzgerald, Mark Brown, Sasha Levin
From: Richard Fitzgerald <rf@opensource.cirrus.com>
[ Upstream commit fac165f22ac947b55407cd3a60a2a9824f905235 ]
The definition of CS42L42_ADC_PDN_MASK was incorrectly defined
as the HP_PDN bit.
Fixes: 2c394ca79604 ("ASoC: Add support for CS42L42 codec")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210616135604.19363-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/cs42l42.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h
index 866d7c873e3c..ca2019732013 100644
--- a/sound/soc/codecs/cs42l42.h
+++ b/sound/soc/codecs/cs42l42.h
@@ -77,7 +77,7 @@
#define CS42L42_HP_PDN_SHIFT 3
#define CS42L42_HP_PDN_MASK (1 << CS42L42_HP_PDN_SHIFT)
#define CS42L42_ADC_PDN_SHIFT 2
-#define CS42L42_ADC_PDN_MASK (1 << CS42L42_HP_PDN_SHIFT)
+#define CS42L42_ADC_PDN_MASK (1 << CS42L42_ADC_PDN_SHIFT)
#define CS42L42_PDN_ALL_SHIFT 0
#define CS42L42_PDN_ALL_MASK (1 << CS42L42_PDN_ALL_SHIFT)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 632/700] of: Fix truncation of memory sizes on 32-bit platforms
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (630 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 631/700] ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 633/700] mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume() Greg Kroah-Hartman
` (73 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Geert Uytterhoeven, Marek Szyprowski,
Rob Herring, Sasha Levin
From: Geert Uytterhoeven <geert+renesas@glider.be>
[ Upstream commit 2892d8a00d23d511a0591ac4b2ff3f050ae1f004 ]
Variable "size" has type "phys_addr_t", which can be either 32-bit or
64-bit on 32-bit systems, while "unsigned long" is always 32-bit on
32-bit systems. Hence the cast in
(unsigned long)size / SZ_1M
may truncate a 64-bit size to 32-bit, as casts have a higher operator
precedence than divisions.
Fix this by inverting the order of the cast and division, which should
be safe for memory blocks smaller than 4 PiB. Note that the division is
actually a shift, as SZ_1M is a power-of-two constant, hence there is no
need to use div_u64().
While at it, use "%lu" to format "unsigned long".
Fixes: e8d9d1f5485b52ec ("drivers: of: add initialization code for static reserved memory")
Fixes: 3f0c8206644836e4 ("drivers: of: add initialization code for dynamic reserved memory")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/4a1117e72d13d26126f57be034c20dac02f1e915.1623835273.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/of/fdt.c | 8 ++++----
drivers/of/of_reserved_mem.c | 8 ++++----
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index adb26aff481d..c485b2c7720d 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -511,11 +511,11 @@ static int __init __reserved_mem_reserve_reg(unsigned long node,
if (size &&
early_init_dt_reserve_memory_arch(base, size, nomap) == 0)
- pr_debug("Reserved memory: reserved region for node '%s': base %pa, size %ld MiB\n",
- uname, &base, (unsigned long)size / SZ_1M);
+ pr_debug("Reserved memory: reserved region for node '%s': base %pa, size %lu MiB\n",
+ uname, &base, (unsigned long)(size / SZ_1M));
else
- pr_info("Reserved memory: failed to reserve memory for node '%s': base %pa, size %ld MiB\n",
- uname, &base, (unsigned long)size / SZ_1M);
+ pr_info("Reserved memory: failed to reserve memory for node '%s': base %pa, size %lu MiB\n",
+ uname, &base, (unsigned long)(size / SZ_1M));
len -= t_len;
if (first) {
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index a7fbc5e37e19..6c95bbdf9265 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -134,9 +134,9 @@ static int __init __reserved_mem_alloc_size(unsigned long node,
ret = early_init_dt_alloc_reserved_memory_arch(size,
align, start, end, nomap, &base);
if (ret == 0) {
- pr_debug("allocated memory for '%s' node: base %pa, size %ld MiB\n",
+ pr_debug("allocated memory for '%s' node: base %pa, size %lu MiB\n",
uname, &base,
- (unsigned long)size / SZ_1M);
+ (unsigned long)(size / SZ_1M));
break;
}
len -= t_len;
@@ -146,8 +146,8 @@ static int __init __reserved_mem_alloc_size(unsigned long node,
ret = early_init_dt_alloc_reserved_memory_arch(size, align,
0, 0, nomap, &base);
if (ret == 0)
- pr_debug("allocated memory for '%s' node: base %pa, size %ld MiB\n",
- uname, &base, (unsigned long)size / SZ_1M);
+ pr_debug("allocated memory for '%s' node: base %pa, size %lu MiB\n",
+ uname, &base, (unsigned long)(size / SZ_1M));
}
if (base == 0) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 633/700] mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (631 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 632/700] of: Fix truncation of memory sizes on 32-bit platforms Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 634/700] habanalabs: Fix an error handling path in hl_pci_probe() Greg Kroah-Hartman
` (72 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Yang Yingliang,
Miquel Raynal, Sasha Levin
From: Yang Yingliang <yangyingliang@huawei.com>
[ Upstream commit ae94c49527aa9bd3b563349adc4b5617747ca6bd ]
Add clk_disable_unprepare() on error path in marvell_nfc_resume().
Fixes: bd9c3f9b3c00 ("mtd: rawnand: marvell: add suspend and resume hooks")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210601125814.3260364-1-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/nand/raw/marvell_nand.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c
index 79da6b02e209..f83525a1ab0e 100644
--- a/drivers/mtd/nand/raw/marvell_nand.c
+++ b/drivers/mtd/nand/raw/marvell_nand.c
@@ -3030,8 +3030,10 @@ static int __maybe_unused marvell_nfc_resume(struct device *dev)
return ret;
ret = clk_prepare_enable(nfc->reg_clk);
- if (ret < 0)
+ if (ret < 0) {
+ clk_disable_unprepare(nfc->core_clk);
return ret;
+ }
/*
* Reset nfc->selected_chip so the next command will cause the timing
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 634/700] habanalabs: Fix an error handling path in hl_pci_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (632 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 633/700] mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 635/700] scsi: mpt3sas: Fix error return value in _scsih_expander_add() Greg Kroah-Hartman
` (71 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Oded Gabbay, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 3002f467a0b0a70aec01d9f446da4ac8c6fda10b ]
If an error occurs after a 'pci_enable_pcie_error_reporting()' call, it
must be undone by a corresponding 'pci_disable_pcie_error_reporting()'
call, as already done in the remove function.
Fixes: 2e5eda4681f9 ("habanalabs: PCIe Advanced Error Reporting support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/misc/habanalabs/common/habanalabs_drv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/misc/habanalabs/common/habanalabs_drv.c b/drivers/misc/habanalabs/common/habanalabs_drv.c
index 032d114f01ea..827140626244 100644
--- a/drivers/misc/habanalabs/common/habanalabs_drv.c
+++ b/drivers/misc/habanalabs/common/habanalabs_drv.c
@@ -437,6 +437,7 @@ static int hl_pci_probe(struct pci_dev *pdev,
return 0;
disable_device:
+ pci_disable_pcie_error_reporting(pdev);
pci_set_drvdata(pdev, NULL);
destroy_hdev(hdev);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 635/700] scsi: mpt3sas: Fix error return value in _scsih_expander_add()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (633 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 634/700] habanalabs: Fix an error handling path in hl_pci_probe() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:11 ` [PATCH 5.12 636/700] soundwire: stream: Fix test for DP prepare complete Greg Kroah-Hartman
` (70 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhen Lei,
Martin K. Petersen, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit d6c2ce435ffe23ef7f395ae76ec747414589db46 ]
When an expander does not contain any 'phys', an appropriate error code -1
should be returned, as done elsewhere in this function. However, we
currently do not explicitly assign this error code to 'rc'. As a result, 0
was incorrectly returned.
Link: https://lore.kernel.org/r/20210514081300.6650-1-thunder.leizhen@huawei.com
Fixes: f92363d12359 ("[SCSI] mpt3sas: add new driver supporting 12GB SAS")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index ae1973878cc7..7824e77bc6e2 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -6883,8 +6883,10 @@ _scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
handle, parent_handle,
(u64)sas_expander->sas_address, sas_expander->num_phys);
- if (!sas_expander->num_phys)
+ if (!sas_expander->num_phys) {
+ rc = -1;
goto out_fail;
+ }
sas_expander->phy = kcalloc(sas_expander->num_phys,
sizeof(struct _sas_phy), GFP_KERNEL);
if (!sas_expander->phy) {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 636/700] soundwire: stream: Fix test for DP prepare complete
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (634 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 635/700] scsi: mpt3sas: Fix error return value in _scsih_expander_add() Greg Kroah-Hartman
@ 2021-07-12 6:11 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 637/700] phy: uniphier-pcie: Fix updating phy parameters Greg Kroah-Hartman
` (69 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:11 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Richard Fitzgerald,
Pierre-Louis Bossart, Vinod Koul, Sasha Levin
From: Richard Fitzgerald <rf@opensource.cirrus.com>
[ Upstream commit 3d3e88e336338834086278236d42039f3cde50e1 ]
In sdw_prep_deprep_slave_ports(), after the wait_for_completion()
the DP prepare status register is read. If this indicates that the
port is now prepared, the code should continue with the port setup.
It is irrelevant whether the wait_for_completion() timed out if the
port is now ready.
The previous implementation would always fail if the
wait_for_completion() timed out, even if the port was reporting
successful prepare.
This patch also fixes a minor bug where the return from sdw_read()
was not checked for error - any error code with LSBits clear could
be misinterpreted as a successful port prepare.
Fixes: 79df15b7d37c ("soundwire: Add helpers for ports operations")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210618144745.30629-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soundwire/stream.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index a418c3c7001c..304ff2ee7d75 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -422,7 +422,6 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus,
struct completion *port_ready;
struct sdw_dpn_prop *dpn_prop;
struct sdw_prepare_ch prep_ch;
- unsigned int time_left;
bool intr = false;
int ret = 0, val;
u32 addr;
@@ -479,15 +478,15 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus,
/* Wait for completion on port ready */
port_ready = &s_rt->slave->port_ready[prep_ch.num];
- time_left = wait_for_completion_timeout(port_ready,
- msecs_to_jiffies(dpn_prop->ch_prep_timeout));
+ wait_for_completion_timeout(port_ready,
+ msecs_to_jiffies(dpn_prop->ch_prep_timeout));
val = sdw_read(s_rt->slave, SDW_DPN_PREPARESTATUS(p_rt->num));
- val &= p_rt->ch_mask;
- if (!time_left || val) {
+ if ((val < 0) || (val & p_rt->ch_mask)) {
+ ret = (val < 0) ? val : -ETIMEDOUT;
dev_err(&s_rt->slave->dev,
- "Chn prep failed for port:%d\n", prep_ch.num);
- return -ETIMEDOUT;
+ "Chn prep failed for port %d: %d\n", prep_ch.num, ret);
+ return ret;
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 637/700] phy: uniphier-pcie: Fix updating phy parameters
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (635 preceding siblings ...)
2021-07-12 6:11 ` [PATCH 5.12 636/700] soundwire: stream: Fix test for DP prepare complete Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 638/700] phy: ti: dm816x: Fix the error handling path in dm816x_usb_phy_probe() Greg Kroah-Hartman
` (68 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kunihiko Hayashi, Vinod Koul, Sasha Levin
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
[ Upstream commit 4a90bbb478dbf18ecdec9dcf8eb708e319d24264 ]
The current driver uses a value from register TEST_O as the original
value for register TEST_I, though, the value is overwritten by "param",
so there is a bug that the original value isn't no longer used.
The value of TEST_O[7:0] should be masked with "mask", replaced with
"param", and placed in the bitfield TESTI_DAT_MASK as new TEST_I value.
Fixes: c6d9b1324159 ("phy: socionext: add PCIe PHY driver support")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1623037842-19363-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/phy/socionext/phy-uniphier-pcie.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/phy/socionext/phy-uniphier-pcie.c b/drivers/phy/socionext/phy-uniphier-pcie.c
index e4adab375c73..6bdbd1f214dd 100644
--- a/drivers/phy/socionext/phy-uniphier-pcie.c
+++ b/drivers/phy/socionext/phy-uniphier-pcie.c
@@ -24,11 +24,13 @@
#define PORT_SEL_1 FIELD_PREP(PORT_SEL_MASK, 1)
#define PCL_PHY_TEST_I 0x2000
-#define PCL_PHY_TEST_O 0x2004
#define TESTI_DAT_MASK GENMASK(13, 6)
#define TESTI_ADR_MASK GENMASK(5, 1)
#define TESTI_WR_EN BIT(0)
+#define PCL_PHY_TEST_O 0x2004
+#define TESTO_DAT_MASK GENMASK(7, 0)
+
#define PCL_PHY_RESET 0x200c
#define PCL_PHY_RESET_N_MNMODE BIT(8) /* =1:manual */
#define PCL_PHY_RESET_N BIT(0) /* =1:deasssert */
@@ -77,11 +79,12 @@ static void uniphier_pciephy_set_param(struct uniphier_pciephy_priv *priv,
val = FIELD_PREP(TESTI_DAT_MASK, 1);
val |= FIELD_PREP(TESTI_ADR_MASK, reg);
uniphier_pciephy_testio_write(priv, val);
- val = readl(priv->base + PCL_PHY_TEST_O);
+ val = readl(priv->base + PCL_PHY_TEST_O) & TESTO_DAT_MASK;
/* update value */
- val &= ~FIELD_PREP(TESTI_DAT_MASK, mask);
- val = FIELD_PREP(TESTI_DAT_MASK, mask & param);
+ val &= ~mask;
+ val |= mask & param;
+ val = FIELD_PREP(TESTI_DAT_MASK, val);
val |= FIELD_PREP(TESTI_ADR_MASK, reg);
uniphier_pciephy_testio_write(priv, val);
uniphier_pciephy_testio_write(priv, val | TESTI_WR_EN);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 638/700] phy: ti: dm816x: Fix the error handling path in dm816x_usb_phy_probe()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (636 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 637/700] phy: uniphier-pcie: Fix updating phy parameters Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 639/700] extcon: sm5502: Drop invalid register write in sm5502_reg_data Greg Kroah-Hartman
` (67 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Vinod Koul, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit f7eedcb8539ddcbb6fe7791f1b4ccf43f905c72f ]
Add an error handling path in the probe to release some resources, as
already done in the remove function.
Fixes: 609adde838f4 ("phy: Add a driver for dm816x USB PHY")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ac5136881f6bdec50be19b3bf73b3bc1b15ef1f1.1622898974.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/phy/ti/phy-dm816x-usb.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/phy/ti/phy-dm816x-usb.c b/drivers/phy/ti/phy-dm816x-usb.c
index 57adc08a89b2..9fe6ea6fdae5 100644
--- a/drivers/phy/ti/phy-dm816x-usb.c
+++ b/drivers/phy/ti/phy-dm816x-usb.c
@@ -242,19 +242,28 @@ static int dm816x_usb_phy_probe(struct platform_device *pdev)
pm_runtime_enable(phy->dev);
generic_phy = devm_phy_create(phy->dev, NULL, &ops);
- if (IS_ERR(generic_phy))
- return PTR_ERR(generic_phy);
+ if (IS_ERR(generic_phy)) {
+ error = PTR_ERR(generic_phy);
+ goto clk_unprepare;
+ }
phy_set_drvdata(generic_phy, phy);
phy_provider = devm_of_phy_provider_register(phy->dev,
of_phy_simple_xlate);
- if (IS_ERR(phy_provider))
- return PTR_ERR(phy_provider);
+ if (IS_ERR(phy_provider)) {
+ error = PTR_ERR(phy_provider);
+ goto clk_unprepare;
+ }
usb_add_phy_dev(&phy->phy);
return 0;
+
+clk_unprepare:
+ pm_runtime_disable(phy->dev);
+ clk_unprepare(phy->refclk);
+ return error;
}
static int dm816x_usb_phy_remove(struct platform_device *pdev)
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 639/700] extcon: sm5502: Drop invalid register write in sm5502_reg_data
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (637 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 638/700] phy: ti: dm816x: Fix the error handling path in dm816x_usb_phy_probe() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 640/700] extcon: max8997: Add missing modalias string Greg Kroah-Hartman
` (66 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Stephan Gerhold, Chanwoo Choi, Sasha Levin
From: Stephan Gerhold <stephan@gerhold.net>
[ Upstream commit d25b224f8e5507879b36a769a6d1324cf163466c ]
When sm5502_init_dev_type() iterates over sm5502_reg_data to
initialize the registers it is limited by ARRAY_SIZE(sm5502_reg_data).
There is no need to add another empty element to sm5502_reg_data.
Having the additional empty element in sm5502_reg_data will just
result in writing 0xff to register 0x00, which does not really
make sense.
Fixes: 914b881f9452 ("extcon: sm5502: Add support new SM5502 extcon device driver")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/extcon/extcon-sm5502.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
index 106d4da647bd..5e0718dee03b 100644
--- a/drivers/extcon/extcon-sm5502.c
+++ b/drivers/extcon/extcon-sm5502.c
@@ -88,7 +88,6 @@ static struct reg_data sm5502_reg_data[] = {
| SM5502_REG_INTM2_MHL_MASK,
.invert = true,
},
- { }
};
/* List of detectable cables */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 640/700] extcon: max8997: Add missing modalias string
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:12 ` [PATCH 5.12 639/700] extcon: sm5502: Drop invalid register write in sm5502_reg_data Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 641/700] powerpc/powernv: Fix machine check reporting of async store errors Greg Kroah-Hartman
` (65 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Marek Szyprowski, Chanwoo Choi, Sasha Levin
From: Marek Szyprowski <m.szyprowski@samsung.com>
[ Upstream commit dc11fc2991e9efbceef93912b83e333d2835fb19 ]
The platform device driver name is "max8997-muic", so advertise it
properly in the modalias string. This fixes automated module loading when
this driver is compiled as a module.
Fixes: b76668ba8a77 ("Extcon: add MAX8997 extcon driver")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/extcon/extcon-max8997.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 5c4f7746cbee..64008808675e 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -784,3 +784,4 @@ module_platform_driver(max8997_muic_driver);
MODULE_DESCRIPTION("Maxim MAX8997 Extcon driver");
MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:max8997-muic");
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 641/700] powerpc/powernv: Fix machine check reporting of async store errors
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (639 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 640/700] extcon: max8997: Add missing modalias string Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 642/700] ASoC: atmel-i2s: Set symmetric sample bits Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nicholas Piggin, Michael Ellerman,
Sasha Levin
From: Nicholas Piggin <npiggin@gmail.com>
[ Upstream commit 3729e0ec59a20825bd4c8c70996b2df63915e1dd ]
POWER9 and POWER10 asynchronous machine checks due to stores have their
cause reported in SRR1 but SRR1[42] is set, which in other cases
indicates DSISR cause.
Check for these cases and clear SRR1[42], so the cause matching uses
the i-side (SRR1) table.
Fixes: 7b9f71f974a1 ("powerpc/64s: POWER9 machine check handler")
Fixes: 201220bb0e8c ("powerpc/powernv: Machine check handler for POWER10")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210517140355.2325406-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/mce_power.c | 48 +++++++++++++++++++++++++++------
1 file changed, 40 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index 667104d4c455..2fff886c549d 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -481,12 +481,11 @@ static int mce_find_instr_ea_and_phys(struct pt_regs *regs, uint64_t *addr,
return -1;
}
-static int mce_handle_ierror(struct pt_regs *regs,
+static int mce_handle_ierror(struct pt_regs *regs, unsigned long srr1,
const struct mce_ierror_table table[],
struct mce_error_info *mce_err, uint64_t *addr,
uint64_t *phys_addr)
{
- uint64_t srr1 = regs->msr;
int handled = 0;
int i;
@@ -695,19 +694,19 @@ static long mce_handle_ue_error(struct pt_regs *regs,
}
static long mce_handle_error(struct pt_regs *regs,
+ unsigned long srr1,
const struct mce_derror_table dtable[],
const struct mce_ierror_table itable[])
{
struct mce_error_info mce_err = { 0 };
uint64_t addr, phys_addr = ULONG_MAX;
- uint64_t srr1 = regs->msr;
long handled;
if (SRR1_MC_LOADSTORE(srr1))
handled = mce_handle_derror(regs, dtable, &mce_err, &addr,
&phys_addr);
else
- handled = mce_handle_ierror(regs, itable, &mce_err, &addr,
+ handled = mce_handle_ierror(regs, srr1, itable, &mce_err, &addr,
&phys_addr);
if (!handled && mce_err.error_type == MCE_ERROR_TYPE_UE)
@@ -723,16 +722,20 @@ long __machine_check_early_realmode_p7(struct pt_regs *regs)
/* P7 DD1 leaves top bits of DSISR undefined */
regs->dsisr &= 0x0000ffff;
- return mce_handle_error(regs, mce_p7_derror_table, mce_p7_ierror_table);
+ return mce_handle_error(regs, regs->msr,
+ mce_p7_derror_table, mce_p7_ierror_table);
}
long __machine_check_early_realmode_p8(struct pt_regs *regs)
{
- return mce_handle_error(regs, mce_p8_derror_table, mce_p8_ierror_table);
+ return mce_handle_error(regs, regs->msr,
+ mce_p8_derror_table, mce_p8_ierror_table);
}
long __machine_check_early_realmode_p9(struct pt_regs *regs)
{
+ unsigned long srr1 = regs->msr;
+
/*
* On POWER9 DD2.1 and below, it's possible to get a machine check
* caused by a paste instruction where only DSISR bit 25 is set. This
@@ -746,10 +749,39 @@ long __machine_check_early_realmode_p9(struct pt_regs *regs)
if (SRR1_MC_LOADSTORE(regs->msr) && regs->dsisr == 0x02000000)
return 1;
- return mce_handle_error(regs, mce_p9_derror_table, mce_p9_ierror_table);
+ /*
+ * Async machine check due to bad real address from store or foreign
+ * link time out comes with the load/store bit (PPC bit 42) set in
+ * SRR1, but the cause comes in SRR1 not DSISR. Clear bit 42 so we're
+ * directed to the ierror table so it will find the cause (which
+ * describes it correctly as a store error).
+ */
+ if (SRR1_MC_LOADSTORE(srr1) &&
+ ((srr1 & 0x081c0000) == 0x08140000 ||
+ (srr1 & 0x081c0000) == 0x08180000)) {
+ srr1 &= ~PPC_BIT(42);
+ }
+
+ return mce_handle_error(regs, srr1,
+ mce_p9_derror_table, mce_p9_ierror_table);
}
long __machine_check_early_realmode_p10(struct pt_regs *regs)
{
- return mce_handle_error(regs, mce_p10_derror_table, mce_p10_ierror_table);
+ unsigned long srr1 = regs->msr;
+
+ /*
+ * Async machine check due to bad real address from store comes with
+ * the load/store bit (PPC bit 42) set in SRR1, but the cause comes in
+ * SRR1 not DSISR. Clear bit 42 so we're directed to the ierror table
+ * so it will find the cause (which describes it correctly as a store
+ * error).
+ */
+ if (SRR1_MC_LOADSTORE(srr1) &&
+ (srr1 & 0x081c0000) == 0x08140000) {
+ srr1 &= ~PPC_BIT(42);
+ }
+
+ return mce_handle_error(regs, srr1,
+ mce_p10_derror_table, mce_p10_ierror_table);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 642/700] ASoC: atmel-i2s: Set symmetric sample bits
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (640 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 641/700] powerpc/powernv: Fix machine check reporting of async store errors Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 643/700] ASoC: atmel-i2s: Fix usage of capture and playback at the same time Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Codrin Ciubotariu, Mark Brown, Sasha Levin
From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
[ Upstream commit 489a830a25e1730aebf7ff53430c170db9a1771b ]
The I2S needs to have the same sample bits for both capture and playback
streams.
Fixes: b543e467d1a9 ("ASoC: atmel-i2s: add driver for the new Atmel I2S controller")
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20210618150741.401739-1-codrin.ciubotariu@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/atmel/atmel-i2s.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index 7c6187e41f2b..e43acb54296b 100644
--- a/sound/soc/atmel/atmel-i2s.c
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -542,6 +542,7 @@ static struct snd_soc_dai_driver atmel_i2s_dai = {
},
.ops = &atmel_i2s_dai_ops,
.symmetric_rate = 1,
+ .symmetric_sample_bits = 1,
};
static const struct snd_soc_component_driver atmel_i2s_component = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 643/700] ASoC: atmel-i2s: Fix usage of capture and playback at the same time
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (641 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 642/700] ASoC: atmel-i2s: Set symmetric sample bits Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 644/700] ASoC: fsl_xcvr: disable all interrupts when suspend happens Greg Kroah-Hartman
` (62 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Codrin Ciubotariu, Mark Brown, Sasha Levin
From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
[ Upstream commit 3b7961a326f8a7e03f54a19f02fedae8d488b80f ]
For both capture and playback streams to work at the same time, only the
needed values from a register need to be updated. Also, clocks should be
enabled only when the first stream is started and stopped when there is no
running stream.
Fixes: b543e467d1a9 ("ASoC: atmel-i2s: add driver for the new Atmel I2S controller")
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20210618150741.401739-2-codrin.ciubotariu@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/atmel/atmel-i2s.c | 34 ++++++++++++++++++++++++++--------
1 file changed, 26 insertions(+), 8 deletions(-)
diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index e43acb54296b..a383c6bef8e0 100644
--- a/sound/soc/atmel/atmel-i2s.c
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -200,6 +200,7 @@ struct atmel_i2s_dev {
unsigned int fmt;
const struct atmel_i2s_gck_param *gck_param;
const struct atmel_i2s_caps *caps;
+ int clk_use_no;
};
static irqreturn_t atmel_i2s_interrupt(int irq, void *dev_id)
@@ -321,9 +322,16 @@ static int atmel_i2s_hw_params(struct snd_pcm_substream *substream,
{
struct atmel_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
- unsigned int mr = 0;
+ unsigned int mr = 0, mr_mask;
int ret;
+ mr_mask = ATMEL_I2SC_MR_FORMAT_MASK | ATMEL_I2SC_MR_MODE_MASK |
+ ATMEL_I2SC_MR_DATALENGTH_MASK;
+ if (is_playback)
+ mr_mask |= ATMEL_I2SC_MR_TXMONO;
+ else
+ mr_mask |= ATMEL_I2SC_MR_RXMONO;
+
switch (dev->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
mr |= ATMEL_I2SC_MR_FORMAT_I2S;
@@ -402,7 +410,7 @@ static int atmel_i2s_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
- return regmap_write(dev->regmap, ATMEL_I2SC_MR, mr);
+ return regmap_update_bits(dev->regmap, ATMEL_I2SC_MR, mr_mask, mr);
}
static int atmel_i2s_switch_mck_generator(struct atmel_i2s_dev *dev,
@@ -495,18 +503,28 @@ static int atmel_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
is_master = (mr & ATMEL_I2SC_MR_MODE_MASK) == ATMEL_I2SC_MR_MODE_MASTER;
/* If master starts, enable the audio clock. */
- if (is_master && mck_enabled)
- err = atmel_i2s_switch_mck_generator(dev, true);
- if (err)
- return err;
+ if (is_master && mck_enabled) {
+ if (!dev->clk_use_no) {
+ err = atmel_i2s_switch_mck_generator(dev, true);
+ if (err)
+ return err;
+ }
+ dev->clk_use_no++;
+ }
err = regmap_write(dev->regmap, ATMEL_I2SC_CR, cr);
if (err)
return err;
/* If master stops, disable the audio clock. */
- if (is_master && !mck_enabled)
- err = atmel_i2s_switch_mck_generator(dev, false);
+ if (is_master && !mck_enabled) {
+ if (dev->clk_use_no == 1) {
+ err = atmel_i2s_switch_mck_generator(dev, false);
+ if (err)
+ return err;
+ }
+ dev->clk_use_no--;
+ }
return err;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 644/700] ASoC: fsl_xcvr: disable all interrupts when suspend happens
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` (642 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 643/700] ASoC: atmel-i2s: Fix usage of capture and playback at the same time Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 645/700] configfs: fix memleak in configfs_release_bin_file Greg Kroah-Hartman
` (61 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shengjiu Wang, Fabio Estevam,
Mark Brown, Sasha Levin
From: Shengjiu Wang <shengjiu.wang@nxp.com>
[ Upstream commit ea837090b388245744988083313f6e9c7c9b9699 ]
There is an unhandled interrupt after suspend, which cause endless
interrupt when system resume, so system may hang.
Disable all interrupts in runtime suspend callback to avoid above
issue.
Fixes: 28564486866f ("ASoC: fsl_xcvr: Add XCVR ASoC CPU DAI driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/1624019913-3380-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/fsl/fsl_xcvr.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index 6dd0a5fcd455..070e3f32859f 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -1236,6 +1236,16 @@ static __maybe_unused int fsl_xcvr_runtime_suspend(struct device *dev)
struct fsl_xcvr *xcvr = dev_get_drvdata(dev);
int ret;
+ /*
+ * Clear interrupts, when streams starts or resumes after
+ * suspend, interrupts are enabled in prepare(), so no need
+ * to enable interrupts in resume().
+ */
+ ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
+ FSL_XCVR_IRQ_EARC_ALL, 0);
+ if (ret < 0)
+ dev_err(dev, "Failed to clear IER0: %d\n", ret);
+
/* Assert M0+ reset */
ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
FSL_XCVR_EXT_CTRL_CORE_RESET,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 645/700] configfs: fix memleak in configfs_release_bin_file
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (643 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 644/700] ASoC: fsl_xcvr: disable all interrupts when suspend happens Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 646/700] ASoC: Intel: sof_sdw: add SOF_RT715_DAI_ID_FIX for AlderLake Greg Kroah-Hartman
` (60 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chung-Chiang Cheng,
Christoph Hellwig, Sasha Levin
From: Chung-Chiang Cheng <shepjeng@gmail.com>
[ Upstream commit 3c252b087de08d3cb32468b54a158bd7ad0ae2f7 ]
When reading binary attributes in progress, buffer->bin_buffer is setup in
configfs_read_bin_file() but never freed.
Fixes: 03607ace807b4 ("configfs: implement binary attributes")
Signed-off-by: Chung-Chiang Cheng <cccheng@synology.com>
[hch: move the vfree rather than duplicating it]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/configfs/file.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/configfs/file.c b/fs/configfs/file.c
index da8351d1e455..4d0825213116 100644
--- a/fs/configfs/file.c
+++ b/fs/configfs/file.c
@@ -482,13 +482,13 @@ static int configfs_release_bin_file(struct inode *inode, struct file *file)
buffer->bin_buffer_size);
}
up_read(&frag->frag_sem);
- /* vfree on NULL is safe */
- vfree(buffer->bin_buffer);
- buffer->bin_buffer = NULL;
- buffer->bin_buffer_size = 0;
- buffer->needs_read_fill = 1;
}
+ vfree(buffer->bin_buffer);
+ buffer->bin_buffer = NULL;
+ buffer->bin_buffer_size = 0;
+ buffer->needs_read_fill = 1;
+
configfs_release(inode, file);
return 0;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 646/700] ASoC: Intel: sof_sdw: add SOF_RT715_DAI_ID_FIX for AlderLake
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (644 preceding siblings ...)
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@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 647/700] ASoC: Intel: sof_sdw: add quirk support for Brya and BT-offload Greg Kroah-Hartman
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705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bard Liao, Libin Yang,
Pierre-Louis Bossart, Mark Brown, Sasha Levin
From: Libin Yang <libin.yang@intel.com>
[ Upstream commit 81cd42e5174ba7918edd3d006406ce21ebaa8507 ]
AlderLake needs the flag SOF_RT715_DAI_ID_FIX if it is using the
rt715 DMIC.
Reviewed-by: Bard Liao <bard.liao@intel.com>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210505163705.305616-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/intel/boards/sof_sdw.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index ecd3f90f4bbe..dfad2ad129ab 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -196,6 +196,7 @@ static const struct dmi_system_id sof_sdw_quirk_table[] = {
},
.driver_data = (void *)(SOF_RT711_JD_SRC_JD1 |
SOF_SDW_TGL_HDMI |
+ SOF_RT715_DAI_ID_FIX |
SOF_SDW_PCH_DMIC),
},
{}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 647/700] ASoC: Intel: sof_sdw: add quirk support for Brya and BT-offload
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` (645 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 646/700] ASoC: Intel: sof_sdw: add SOF_RT715_DAI_ID_FIX for AlderLake Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 648/700] ASoC: Intel: sof_sdw: use mach data for ADL RVP DMIC count Greg Kroah-Hartman
` (58 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vamshi Krishna Gopal, Yong Zhi,
Bard Liao, Ranjani Sridharan, Kai Vehmanen, Mark Brown,
Sasha Levin
From: Vamshi Krishna Gopal <vamshi.krishna.gopal@intel.com>
[ Upstream commit 03effde3a2ea1d82c4dd6b634fc6174545d2c34f ]
Brya is another ADL-P product.
AlderLake has support for Bluetooth audio offload capability.
Enable the BT-offload quirk for ADL-P Brya and the Intel RVP.
Signed-off-by: Vamshi Krishna Gopal <vamshi.krishna.gopal@intel.com>
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210521155632.3736393-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/intel/boards/sof_sdw.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index dfad2ad129ab..35ad448902c7 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -197,7 +197,21 @@ static const struct dmi_system_id sof_sdw_quirk_table[] = {
.driver_data = (void *)(SOF_RT711_JD_SRC_JD1 |
SOF_SDW_TGL_HDMI |
SOF_RT715_DAI_ID_FIX |
- SOF_SDW_PCH_DMIC),
+ SOF_SDW_PCH_DMIC |
+ SOF_BT_OFFLOAD_SSP(2) |
+ SOF_SSP_BT_OFFLOAD_PRESENT),
+ },
+ {
+ .callback = sof_sdw_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Google"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Brya"),
+ },
+ .driver_data = (void *)(SOF_SDW_TGL_HDMI |
+ SOF_SDW_PCH_DMIC |
+ SOF_SDW_FOUR_SPK |
+ SOF_BT_OFFLOAD_SSP(2) |
+ SOF_SSP_BT_OFFLOAD_PRESENT),
},
{}
};
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 648/700] ASoC: Intel: sof_sdw: use mach data for ADL RVP DMIC count
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (646 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 647/700] ASoC: Intel: sof_sdw: add quirk support for Brya and BT-offload Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 649/700] ASoC: fsl_spdif: Fix unexpected interrupt after suspend Greg Kroah-Hartman
` (57 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Kai Vehmanen, Pierre-Louis Bossart,
Mark Brown, Sasha Levin
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
[ Upstream commit 505351329d26e684588a6919c0407b8a0f5c3813 ]
On the reference boards, number of PCH dmics may vary and the number
should be taken from driver machine data. Remove the SOF_SDW_PCH_DMIC
quirk to make DMIC number configurable.
Fixes:d25bbe80485f8 ("ASoC: Intel: sof_sdw: add quirk for new ADL-P Rvp")
BugLink: https://github.com/thesofproject/sof/issues/4185
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210621194057.21711-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/intel/boards/sof_sdw.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index 35ad448902c7..dd93f663803b 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -197,7 +197,6 @@ static const struct dmi_system_id sof_sdw_quirk_table[] = {
.driver_data = (void *)(SOF_RT711_JD_SRC_JD1 |
SOF_SDW_TGL_HDMI |
SOF_RT715_DAI_ID_FIX |
- SOF_SDW_PCH_DMIC |
SOF_BT_OFFLOAD_SSP(2) |
SOF_SSP_BT_OFFLOAD_PRESENT),
},
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 649/700] ASoC: fsl_spdif: Fix unexpected interrupt after suspend
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (647 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 648/700] ASoC: Intel: sof_sdw: use mach data for ADL RVP DMIC count Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 650/700] leds: as3645a: Fix error return code in as3645a_parse_node() Greg Kroah-Hartman
` (56 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Shengjiu Wang, Fabio Estevam,
Mark Brown, Sasha Levin
From: Shengjiu Wang <shengjiu.wang@nxp.com>
[ Upstream commit a7a0a2feb957e446b2bcf732f245ba04fc8b6314 ]
When system enter suspend, the machine driver suspend callback
function will be called, then the cpu driver trigger callback
(SNDRV_PCM_TRIGGER_SUSPEND) be called, it would disable the
interrupt.
But the machine driver suspend and cpu dai driver suspend order
maybe changed, the cpu dai driver's suspend callback is called before
machine driver's suppend callback, then the interrupt is not cleared
successfully in trigger callback.
So need to clear interrupts in cpu dai driver's suspend callback
to avoid such issue.
Fixes: 9cb2b3796e08 ("ASoC: fsl_spdif: Add pm runtime function")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/1624365084-7934-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/fsl/fsl_spdif.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index e5d366b2a6a4..6d5e9c0acdb4 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1429,6 +1429,9 @@ static int fsl_spdif_runtime_suspend(struct device *dev)
struct fsl_spdif_priv *spdif_priv = dev_get_drvdata(dev);
int i;
+ /* Disable all the interrupts */
+ regmap_update_bits(spdif_priv->regmap, REG_SPDIF_SIE, 0xffffff, 0);
+
regmap_read(spdif_priv->regmap, REG_SPDIF_SRPC,
&spdif_priv->regcache_srpc);
regcache_cache_only(spdif_priv->regmap, true);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 650/700] leds: as3645a: Fix error return code in as3645a_parse_node()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (648 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 649/700] ASoC: fsl_spdif: Fix unexpected interrupt after suspend Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 651/700] leds: ktd2692: Fix an error handling path Greg Kroah-Hartman
` (55 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Sakari Ailus, Zhen Lei,
Pavel Machek, Sasha Levin
From: Zhen Lei <thunder.leizhen@huawei.com>
[ Upstream commit 96a30960a2c5246c8ffebe8a3c9031f9df094d97 ]
Return error code -ENODEV rather than '0' when the indicator node can not
be found.
Fixes: a56ba8fbcb55 ("media: leds: as3645a: Add LED flash class driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/leds-as3645a.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index e8922fa03379..80411d41e802 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -545,6 +545,7 @@ static int as3645a_parse_node(struct as3645a *flash,
if (!flash->indicator_node) {
dev_warn(&flash->client->dev,
"can't find indicator node\n");
+ rval = -ENODEV;
goto out_err;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 651/700] leds: ktd2692: Fix an error handling path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (649 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 650/700] leds: as3645a: Fix error return code in as3645a_parse_node() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 652/700] selftests/ftrace: fix event-no-pid on 1-core machine Greg Kroah-Hartman
` (54 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Pavel Machek,
Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit ee78b9360e14c276f5ceaa4a0d06f790f04ccdad ]
In 'ktd2692_parse_dt()', if an error occurs after a successful
'regulator_enable()' call, we should call 'regulator_enable()'.
This is the same in 'ktd2692_probe()', if an error occurs after a
successful 'ktd2692_parse_dt()' call.
Instead of adding 'regulator_enable()' in several places, implement a
resource managed solution and simplify the remove function accordingly.
Fixes: b7da8c5c725c ("leds: Add ktd2692 flash LED driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/leds/leds-ktd2692.c | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/drivers/leds/leds-ktd2692.c b/drivers/leds/leds-ktd2692.c
index 632f10db4b3f..f341da1503a4 100644
--- a/drivers/leds/leds-ktd2692.c
+++ b/drivers/leds/leds-ktd2692.c
@@ -256,6 +256,17 @@ static void ktd2692_setup(struct ktd2692_context *led)
| KTD2692_REG_FLASH_CURRENT_BASE);
}
+static void regulator_disable_action(void *_data)
+{
+ struct device *dev = _data;
+ struct ktd2692_context *led = dev_get_drvdata(dev);
+ int ret;
+
+ ret = regulator_disable(led->regulator);
+ if (ret)
+ dev_err(dev, "Failed to disable supply: %d\n", ret);
+}
+
static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev,
struct ktd2692_led_config_data *cfg)
{
@@ -286,8 +297,14 @@ static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev,
if (led->regulator) {
ret = regulator_enable(led->regulator);
- if (ret)
+ if (ret) {
dev_err(dev, "Failed to enable supply: %d\n", ret);
+ } else {
+ ret = devm_add_action_or_reset(dev,
+ regulator_disable_action, dev);
+ if (ret)
+ return ret;
+ }
}
child_node = of_get_next_available_child(np, NULL);
@@ -377,17 +394,9 @@ static int ktd2692_probe(struct platform_device *pdev)
static int ktd2692_remove(struct platform_device *pdev)
{
struct ktd2692_context *led = platform_get_drvdata(pdev);
- int ret;
led_classdev_flash_unregister(&led->fled_cdev);
- if (led->regulator) {
- ret = regulator_disable(led->regulator);
- if (ret)
- dev_err(&pdev->dev,
- "Failed to disable supply: %d\n", ret);
- }
-
mutex_destroy(&led->lock);
return 0;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 652/700] selftests/ftrace: fix event-no-pid on 1-core machine
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (650 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 651/700] leds: ktd2692: Fix an error handling path Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 653/700] serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs Greg Kroah-Hartman
` (53 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Krzysztof Kozlowski,
Steven Rostedt (VMware),
Shuah Khan, Sasha Levin
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
[ Upstream commit 07b60713b57a8f952d029a2b6849d003d9c16108 ]
When running event-no-pid test on small machines (e.g. cloud 1-core
instance), other events might not happen:
+ cat trace
+ cnt=0
+ [ 0 -eq 0 ]
+ fail No other events were recorded
[15] event tracing - restricts events based on pid notrace filtering [FAIL]
Schedule a simple sleep task to be sure that some other process events
get recorded.
Fixes: ebed9628f5c2 ("selftests/ftrace: Add test to test new set_event_notrace_pid file")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../testing/selftests/ftrace/test.d/event/event-no-pid.tc | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc
index e6eb78f0b954..9933ed24f901 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc
@@ -57,6 +57,10 @@ enable_events() {
echo 1 > tracing_on
}
+other_task() {
+ sleep .001 || usleep 1 || sleep 1
+}
+
echo 0 > options/event-fork
do_reset
@@ -94,6 +98,9 @@ child=$!
echo "child = $child"
wait $child
+# Be sure some other events will happen for small systems (e.g. 1 core)
+other_task
+
echo 0 > tracing_on
cnt=`count_pid $mypid`
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 653/700] serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (651 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 652/700] selftests/ftrace: fix event-no-pid on 1-core machine Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 654/700] powerpc: Offline CPU in stop_this_cpu() Greg Kroah-Hartman
` (52 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jan Kiszka, Vignesh Raghavendra, Sasha Levin
From: Vignesh Raghavendra <vigneshr@ti.com>
[ Upstream commit b67e830d38fa9335d927fe67e812e3ed81b4689c ]
On K3 family of SoCs (which includes AM654 SoC), it is observed that RX
TIMEOUT is signalled after RX FIFO has been drained, in which case a
dummy read of RX FIFO is required to clear RX TIMEOUT condition.
Otherwise, this would lead to an interrupt storm.
Fix this by introducing UART_RX_TIMEOUT_QUIRK flag and doing a dummy
read in IRQ handler when RX TIMEOUT is reported with no data in RX FIFO.
Fixes: be70874498f3 ("serial: 8250_omap: Add support for AM654 UART controller")
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20210622145704.11168-1-vigneshr@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/8250/8250_omap.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 3161d3655670..c37468887fd2 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -43,6 +43,7 @@
#define UART_ERRATA_CLOCK_DISABLE (1 << 3)
#define UART_HAS_EFR2 BIT(4)
#define UART_HAS_RHR_IT_DIS BIT(5)
+#define UART_RX_TIMEOUT_QUIRK BIT(6)
#define OMAP_UART_FCR_RX_TRIG 6
#define OMAP_UART_FCR_TX_TRIG 4
@@ -104,6 +105,9 @@
#define UART_OMAP_EFR2 0x23
#define UART_OMAP_EFR2_TIMEOUT_BEHAVE BIT(6)
+/* RX FIFO occupancy indicator */
+#define UART_OMAP_RX_LVL 0x64
+
struct omap8250_priv {
int line;
u8 habit;
@@ -611,6 +615,7 @@ static int omap_8250_dma_handle_irq(struct uart_port *port);
static irqreturn_t omap8250_irq(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
+ struct omap8250_priv *priv = port->private_data;
struct uart_8250_port *up = up_to_u8250p(port);
unsigned int iir;
int ret;
@@ -625,6 +630,18 @@ static irqreturn_t omap8250_irq(int irq, void *dev_id)
serial8250_rpm_get(up);
iir = serial_port_in(port, UART_IIR);
ret = serial8250_handle_irq(port, iir);
+
+ /*
+ * On K3 SoCs, it is observed that RX TIMEOUT is signalled after
+ * FIFO has been drained, in which case a dummy read of RX FIFO
+ * is required to clear RX TIMEOUT condition.
+ */
+ if (priv->habit & UART_RX_TIMEOUT_QUIRK &&
+ (iir & UART_IIR_RX_TIMEOUT) == UART_IIR_RX_TIMEOUT &&
+ serial_port_in(port, UART_OMAP_RX_LVL) == 0) {
+ serial_port_in(port, UART_RX);
+ }
+
serial8250_rpm_put(up);
return IRQ_RETVAL(ret);
@@ -1218,7 +1235,8 @@ static struct omap8250_dma_params am33xx_dma = {
static struct omap8250_platdata am654_platdata = {
.dma_params = &am654_dma,
- .habit = UART_HAS_EFR2 | UART_HAS_RHR_IT_DIS,
+ .habit = UART_HAS_EFR2 | UART_HAS_RHR_IT_DIS |
+ UART_RX_TIMEOUT_QUIRK,
};
static struct omap8250_platdata am33xx_platdata = {
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 654/700] powerpc: Offline CPU in stop_this_cpu()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (652 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 653/700] serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 655/700] powerpc/papr_scm: Properly handle UUID types and API Greg Kroah-Hartman
` (51 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nicholas Piggin, Michael Ellerman,
Sasha Levin
From: Nicholas Piggin <npiggin@gmail.com>
[ Upstream commit bab26238bbd44d5a4687c0a64fd2c7f2755ea937 ]
printk_safe_flush_on_panic() has special lock breaking code for the case
where we panic()ed with the console lock held. It relies on panic IPI
causing other CPUs to mark themselves offline.
Do as most other architectures do.
This effectively reverts commit de6e5d38417e ("powerpc: smp_send_stop do
not offline stopped CPUs"), unfortunately it may result in some false
positive warnings, but the alternative is more situations where we can
crash without getting messages out.
Fixes: de6e5d38417e ("powerpc: smp_send_stop do not offline stopped CPUs")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210623041245.865134-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/smp.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 1d7daef1c3b6..216919de87d7 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -619,6 +619,8 @@ static void nmi_stop_this_cpu(struct pt_regs *regs)
/*
* IRQs are already hard disabled by the smp_handle_nmi_ipi.
*/
+ set_cpu_online(smp_processor_id(), false);
+
spin_begin();
while (1)
spin_cpu_relax();
@@ -634,6 +636,15 @@ void smp_send_stop(void)
static void stop_this_cpu(void *dummy)
{
hard_irq_disable();
+
+ /*
+ * Offlining CPUs in stop_this_cpu can result in scheduler warnings,
+ * (see commit de6e5d38417e), but printk_safe_flush_on_panic() wants
+ * to know other CPUs are offline before it breaks locks to flush
+ * printk buffers, in case we panic()ed while holding the lock.
+ */
+ set_cpu_online(smp_processor_id(), false);
+
spin_begin();
while (1)
spin_cpu_relax();
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 655/700] powerpc/papr_scm: Properly handle UUID types and API
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (653 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 654/700] powerpc: Offline CPU in stop_this_cpu() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 656/700] powerpc/64s: Fix copy-paste data exposure into newly created tasks Greg Kroah-Hartman
` (50 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Andy Shevchenko, Aneesh Kumar K.V,
Michael Ellerman, Sasha Levin
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ Upstream commit 0e8554b5d7801b0aebc6c348a0a9f7706aa17b3b ]
Parse to and export from UUID own type, before dereferencing.
This also fixes wrong comment (Little Endian UUID is something else)
and should eliminate the direct strict types assignments.
Fixes: 43001c52b603 ("powerpc/papr_scm: Use ibm,unit-guid as the iset cookie")
Fixes: 259a948c4ba1 ("powerpc/pseries/scm: Use a specific endian format for storing uuid from the device tree")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210616134303.58185-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/pseries/papr_scm.c | 27 +++++++++++++++--------
1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 835163f54244..0693bc8d70ac 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -18,6 +18,7 @@
#include <asm/plpar_wrappers.h>
#include <asm/papr_pdsm.h>
#include <asm/mce.h>
+#include <asm/unaligned.h>
#define BIND_ANY_ADDR (~0ul)
@@ -1047,8 +1048,9 @@ static int papr_scm_probe(struct platform_device *pdev)
u32 drc_index, metadata_size;
u64 blocks, block_size;
struct papr_scm_priv *p;
+ u8 uuid_raw[UUID_SIZE];
const char *uuid_str;
- u64 uuid[2];
+ uuid_t uuid;
int rc;
/* check we have all the required DT properties */
@@ -1090,16 +1092,23 @@ static int papr_scm_probe(struct platform_device *pdev)
p->is_volatile = !of_property_read_bool(dn, "ibm,cache-flush-required");
/* We just need to ensure that set cookies are unique across */
- uuid_parse(uuid_str, (uuid_t *) uuid);
+ uuid_parse(uuid_str, &uuid);
+
/*
- * cookie1 and cookie2 are not really little endian
- * we store a little endian representation of the
- * uuid str so that we can compare this with the label
- * area cookie irrespective of the endian config with which
- * the kernel is built.
+ * The cookie1 and cookie2 are not really little endian.
+ * We store a raw buffer representation of the
+ * uuid string so that we can compare this with the label
+ * area cookie irrespective of the endian configuration
+ * with which the kernel is built.
+ *
+ * Historically we stored the cookie in the below format.
+ * for a uuid string 72511b67-0b3b-42fd-8d1d-5be3cae8bcaa
+ * cookie1 was 0xfd423b0b671b5172
+ * cookie2 was 0xaabce8cae35b1d8d
*/
- p->nd_set.cookie1 = cpu_to_le64(uuid[0]);
- p->nd_set.cookie2 = cpu_to_le64(uuid[1]);
+ export_uuid(uuid_raw, &uuid);
+ p->nd_set.cookie1 = get_unaligned_le64(&uuid_raw[0]);
+ p->nd_set.cookie2 = get_unaligned_le64(&uuid_raw[8]);
/* might be zero */
p->metadata_size = metadata_size;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 656/700] powerpc/64s: Fix copy-paste data exposure into newly created tasks
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (654 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 655/700] powerpc/papr_scm: Properly handle UUID types and API Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 657/700] powerpc/papr_scm: Make perf_stats invisible if perf-stats unavailable Greg Kroah-Hartman
` (49 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nicholas Piggin, Michael Ellerman,
Sasha Levin
From: Nicholas Piggin <npiggin@gmail.com>
[ Upstream commit f35d2f249ef05b9671e7898f09ad89aa78f99122 ]
copy-paste contains implicit "copy buffer" state that can contain
arbitrary user data (if the user process executes a copy instruction).
This could be snooped by another process if a context switch hits while
the state is live. So cp_abort is executed on context switch to clear
out possible sensitive data and prevent the leak.
cp_abort is done after the low level _switch(), which means it is never
reached by newly created tasks, so they could snoop on this buffer
between their first and second context switch.
Fix this by doing the cp_abort before calling _switch. Add some
comments which should make the issue harder to miss.
Fixes: 07d2a628bc000 ("powerpc/64s: Avoid cpabort in context switch when possible")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210622053036.474678-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/process.c | 48 +++++++++++++++++++++++------------
1 file changed, 32 insertions(+), 16 deletions(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3231c2df9e26..03d7261e1492 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1212,6 +1212,19 @@ struct task_struct *__switch_to(struct task_struct *prev,
__flush_tlb_pending(batch);
batch->active = 0;
}
+
+ /*
+ * On POWER9 the copy-paste buffer can only paste into
+ * foreign real addresses, so unprivileged processes can not
+ * see the data or use it in any way unless they have
+ * foreign real mappings. If the new process has the foreign
+ * real address mappings, we must issue a cp_abort to clear
+ * any state and prevent snooping, corruption or a covert
+ * channel. ISA v3.1 supports paste into local memory.
+ */
+ if (new->mm && (cpu_has_feature(CPU_FTR_ARCH_31) ||
+ atomic_read(&new->mm->context.vas_windows)))
+ asm volatile(PPC_CP_ABORT);
#endif /* CONFIG_PPC_BOOK3S_64 */
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
@@ -1257,30 +1270,33 @@ struct task_struct *__switch_to(struct task_struct *prev,
last = _switch(old_thread, new_thread);
+ /*
+ * Nothing after _switch will be run for newly created tasks,
+ * because they switch directly to ret_from_fork/ret_from_kernel_thread
+ * etc. Code added here should have a comment explaining why that is
+ * okay.
+ */
+
#ifdef CONFIG_PPC_BOOK3S_64
+ /*
+ * This applies to a process that was context switched while inside
+ * arch_enter_lazy_mmu_mode(), to re-activate the batch that was
+ * deactivated above, before _switch(). This will never be the case
+ * for new tasks.
+ */
if (current_thread_info()->local_flags & _TLF_LAZY_MMU) {
current_thread_info()->local_flags &= ~_TLF_LAZY_MMU;
batch = this_cpu_ptr(&ppc64_tlb_batch);
batch->active = 1;
}
- if (current->thread.regs) {
+ /*
+ * Math facilities are masked out of the child MSR in copy_thread.
+ * A new task does not need to restore_math because it will
+ * demand fault them.
+ */
+ if (current->thread.regs)
restore_math(current->thread.regs);
-
- /*
- * On POWER9 the copy-paste buffer can only paste into
- * foreign real addresses, so unprivileged processes can not
- * see the data or use it in any way unless they have
- * foreign real mappings. If the new process has the foreign
- * real address mappings, we must issue a cp_abort to clear
- * any state and prevent snooping, corruption or a covert
- * channel. ISA v3.1 supports paste into local memory.
- */
- if (current->mm &&
- (cpu_has_feature(CPU_FTR_ARCH_31) ||
- atomic_read(¤t->mm->context.vas_windows)))
- asm volatile(PPC_CP_ABORT);
- }
#endif /* CONFIG_PPC_BOOK3S_64 */
return last;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 657/700] powerpc/papr_scm: Make perf_stats invisible if perf-stats unavailable
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (655 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 656/700] powerpc/64s: Fix copy-paste data exposure into newly created tasks Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 658/700] powerpc: Fix is_kvm_guest() / kvm_para_available() Greg Kroah-Hartman
` (48 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Vaibhav Jain, Dan Williams,
Michael Ellerman, Sasha Levin
From: Vaibhav Jain <vaibhav@linux.ibm.com>
[ Upstream commit ed78f56e1271f108e8af61baeba383dcd77adbec ]
In case performance stats for an nvdimm are not available, reading the
'perf_stats' sysfs file returns an -ENOENT error. A better approach is
to make the 'perf_stats' file entirely invisible to indicate that
performance stats for an nvdimm are unavailable.
So this patch updates 'papr_nd_attribute_group' to add a 'is_visible'
callback implemented as newly introduced 'papr_nd_attribute_visible()'
that returns an appropriate mode in case performance stats aren't
supported in a given nvdimm.
Also the initialization of 'papr_scm_priv.stat_buffer_len' is moved
from papr_scm_nvdimm_init() to papr_scm_probe() so that it value is
available when 'papr_nd_attribute_visible()' is called during nvdimm
initialization.
Even though 'perf_stats' attribute is available since v5.9, there are
no known user-space tools/scripts that are dependent on presence of its
sysfs file. Hence I dont expect any user-space breakage with this
patch.
Fixes: 2d02bf835e57 ("powerpc/papr_scm: Fetch nvdimm performance stats from PHYP")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210513092349.285021-1-vaibhav@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/ABI/testing/sysfs-bus-papr-pmem | 8 +++--
arch/powerpc/platforms/pseries/papr_scm.c | 35 +++++++++++++------
2 files changed, 29 insertions(+), 14 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem
index 8316c33862a0..0aa02bf2bde5 100644
--- a/Documentation/ABI/testing/sysfs-bus-papr-pmem
+++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem
@@ -39,9 +39,11 @@ KernelVersion: v5.9
Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org,
Description:
(RO) Report various performance stats related to papr-scm NVDIMM
- device. Each stat is reported on a new line with each line
- composed of a stat-identifier followed by it value. Below are
- currently known dimm performance stats which are reported:
+ device. This attribute is only available for NVDIMM devices
+ that support reporting NVDIMM performance stats. Each stat is
+ reported on a new line with each line composed of a
+ stat-identifier followed by it value. Below are currently known
+ dimm performance stats which are reported:
* "CtlResCt" : Controller Reset Count
* "CtlResTm" : Controller Reset Elapsed Time
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 0693bc8d70ac..057acbb9116d 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -868,6 +868,20 @@ static ssize_t flags_show(struct device *dev,
}
DEVICE_ATTR_RO(flags);
+static umode_t papr_nd_attribute_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct nvdimm *nvdimm = to_nvdimm(dev);
+ struct papr_scm_priv *p = nvdimm_provider_data(nvdimm);
+
+ /* For if perf-stats not available remove perf_stats sysfs */
+ if (attr == &dev_attr_perf_stats.attr && p->stat_buffer_len == 0)
+ return 0;
+
+ return attr->mode;
+}
+
/* papr_scm specific dimm attributes */
static struct attribute *papr_nd_attributes[] = {
&dev_attr_flags.attr,
@@ -877,6 +891,7 @@ static struct attribute *papr_nd_attributes[] = {
static struct attribute_group papr_nd_attribute_group = {
.name = "papr",
+ .is_visible = papr_nd_attribute_visible,
.attrs = papr_nd_attributes,
};
@@ -892,7 +907,6 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
struct nd_region_desc ndr_desc;
unsigned long dimm_flags;
int target_nid, online_nid;
- ssize_t stat_size;
p->bus_desc.ndctl = papr_scm_ndctl;
p->bus_desc.module = THIS_MODULE;
@@ -963,16 +977,6 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
list_add_tail(&p->region_list, &papr_nd_regions);
mutex_unlock(&papr_ndr_lock);
- /* Try retriving the stat buffer and see if its supported */
- stat_size = drc_pmem_query_stats(p, NULL, 0);
- if (stat_size > 0) {
- p->stat_buffer_len = stat_size;
- dev_dbg(&p->pdev->dev, "Max perf-stat size %lu-bytes\n",
- p->stat_buffer_len);
- } else {
- dev_info(&p->pdev->dev, "Dimm performance stats unavailable\n");
- }
-
return 0;
err: nvdimm_bus_unregister(p->bus);
@@ -1050,6 +1054,7 @@ static int papr_scm_probe(struct platform_device *pdev)
struct papr_scm_priv *p;
u8 uuid_raw[UUID_SIZE];
const char *uuid_str;
+ ssize_t stat_size;
uuid_t uuid;
int rc;
@@ -1133,6 +1138,14 @@ static int papr_scm_probe(struct platform_device *pdev)
p->res.name = pdev->name;
p->res.flags = IORESOURCE_MEM;
+ /* Try retrieving the stat buffer and see if its supported */
+ stat_size = drc_pmem_query_stats(p, NULL, 0);
+ if (stat_size > 0) {
+ p->stat_buffer_len = stat_size;
+ dev_dbg(&p->pdev->dev, "Max perf-stat size %lu-bytes\n",
+ p->stat_buffer_len);
+ }
+
rc = papr_scm_nvdimm_init(p);
if (rc)
goto err2;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 658/700] powerpc: Fix is_kvm_guest() / kvm_para_available()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (656 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 657/700] powerpc/papr_scm: Make perf_stats invisible if perf-stats unavailable Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 659/700] ALSA: firewire-lib: Fix amdtp_domain_start() when no AMDTP_OUT_STREAM stream is found Greg Kroah-Hartman
` (47 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Michael Ellerman, Sasha Levin
From: Michael Ellerman <mpe@ellerman.id.au>
[ Upstream commit 95839225639ba7c3d8d7231b542728dcf222bf2d ]
Commit a21d1becaa3f ("powerpc: Reintroduce is_kvm_guest() as a fast-path
check") added is_kvm_guest() and changed kvm_para_available() to use it.
is_kvm_guest() checks a static key, kvm_guest, and that static key is
set in check_kvm_guest().
The problem is check_kvm_guest() is only called on pseries, and even
then only in some configurations. That means is_kvm_guest() always
returns false on all non-pseries and some pseries depending on
configuration. That's a bug.
For PR KVM guests this is noticable because they no longer do live
patching of themselves, which can be detected by the omission of a
message in dmesg such as:
KVM: Live patching for a fast VM worked
To fix it make check_kvm_guest() an initcall, to ensure it's always
called at boot. It needs to be core so that it runs before
kvm_guest_init() which is postcore. To be an initcall it needs to return
int, where 0 means success, so update that.
We still call it manually in pSeries_smp_probe(), because that runs
before init calls are run.
Fixes: a21d1becaa3f ("powerpc: Reintroduce is_kvm_guest() as a fast-path check")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210623130514.2543232-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/include/asm/kvm_guest.h | 4 ++--
arch/powerpc/kernel/firmware.c | 10 ++++++----
arch/powerpc/platforms/pseries/smp.c | 4 +++-
3 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_guest.h b/arch/powerpc/include/asm/kvm_guest.h
index 2fca299f7e19..c63105d2c9e7 100644
--- a/arch/powerpc/include/asm/kvm_guest.h
+++ b/arch/powerpc/include/asm/kvm_guest.h
@@ -16,10 +16,10 @@ static inline bool is_kvm_guest(void)
return static_branch_unlikely(&kvm_guest);
}
-bool check_kvm_guest(void);
+int check_kvm_guest(void);
#else
static inline bool is_kvm_guest(void) { return false; }
-static inline bool check_kvm_guest(void) { return false; }
+static inline int check_kvm_guest(void) { return 0; }
#endif
#endif /* _ASM_POWERPC_KVM_GUEST_H_ */
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index c9e2819b095a..c7022c41cc31 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -23,18 +23,20 @@ EXPORT_SYMBOL_GPL(powerpc_firmware_features);
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
DEFINE_STATIC_KEY_FALSE(kvm_guest);
-bool check_kvm_guest(void)
+int __init check_kvm_guest(void)
{
struct device_node *hyper_node;
hyper_node = of_find_node_by_path("/hypervisor");
if (!hyper_node)
- return false;
+ return 0;
if (!of_device_is_compatible(hyper_node, "linux,kvm"))
- return false;
+ return 0;
static_branch_enable(&kvm_guest);
- return true;
+
+ return 0;
}
+core_initcall(check_kvm_guest); // before kvm_guest_init()
#endif
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index c70b4be9f0a5..096629f54576 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -211,7 +211,9 @@ static __init void pSeries_smp_probe(void)
if (!cpu_has_feature(CPU_FTR_SMT))
return;
- if (check_kvm_guest()) {
+ check_kvm_guest();
+
+ if (is_kvm_guest()) {
/*
* KVM emulates doorbells by disabling FSCR[MSGP] so msgsndp
* faults to the hypervisor which then reads the instruction
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 659/700] ALSA: firewire-lib: Fix amdtp_domain_start() when no AMDTP_OUT_STREAM stream is found
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (657 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 658/700] powerpc: Fix is_kvm_guest() / kvm_para_available() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 660/700] serial: mvebu-uart: do not allow changing baudrate when uartclk is not available Greg Kroah-Hartman
` (46 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Christophe JAILLET, Takashi Sakamoto,
Takashi Iwai, Sasha Levin
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 0cbbeaf370221fc469c95945dd3c1198865c5fe4 ]
The intent here is to return an error code if we don't find what we are
looking for in the 'list_for_each_entry()' loop.
's' is not NULL if the list is empty or if we scan the complete list.
Introduce a new 'found' variable to handle such cases.
Fixes: 60dd49298ec5 ("ALSA: firewire-lib: handle several AMDTP streams in callback handler of IRQ target")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/9c9a53a4905984a570ba5672cbab84f2027dedc1.1624560484.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/firewire/amdtp-stream.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index 5805c5de39fb..7a282d8e7148 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -1404,14 +1404,17 @@ int amdtp_domain_start(struct amdtp_domain *d, unsigned int ir_delay_cycle)
unsigned int queue_size;
struct amdtp_stream *s;
int cycle;
+ bool found = false;
int err;
// Select an IT context as IRQ target.
list_for_each_entry(s, &d->streams, list) {
- if (s->direction == AMDTP_OUT_STREAM)
+ if (s->direction == AMDTP_OUT_STREAM) {
+ found = true;
break;
+ }
}
- if (!s)
+ if (!found)
return -ENXIO;
d->irq_target = s;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 660/700] serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (658 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 659/700] ALSA: firewire-lib: Fix amdtp_domain_start() when no AMDTP_OUT_STREAM stream is found Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 661/700] serial: mvebu-uart: correctly calculate minimal possible baudrate Greg Kroah-Hartman
` (45 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pali Rohár, Sasha Levin
From: Pali Rohár <pali@kernel.org>
[ Upstream commit ecd6b010d81f97b06b2f64d2d4f50ebf5acddaa9 ]
Testing mvuart->clk for non-error is not enough as mvuart->clk may contain
valid clk pointer but when clk_prepare_enable(mvuart->clk) failed then
port->uartclk is zero.
When mvuart->clk is not available then port->uartclk is zero too.
Parent clock rate port->uartclk is needed to calculate UART clock divisor
and without it is not possible to change baudrate.
So fix test condition when it is possible to change baudrate.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 68a0db1d7da2 ("serial: mvebu-uart: add function to change baudrate")
Link: https://lore.kernel.org/r/20210624224909.6350-3-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/mvebu-uart.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 908a4ac6b5a7..9638ae6aae79 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -445,12 +445,11 @@ static void mvebu_uart_shutdown(struct uart_port *port)
static int mvebu_uart_baud_rate_set(struct uart_port *port, unsigned int baud)
{
- struct mvebu_uart *mvuart = to_mvuart(port);
unsigned int d_divisor, m_divisor;
u32 brdv, osamp;
- if (IS_ERR(mvuart->clk))
- return -PTR_ERR(mvuart->clk);
+ if (!port->uartclk)
+ return -EOPNOTSUPP;
/*
* The baudrate is derived from the UART clock thanks to two divisors:
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 661/700] serial: mvebu-uart: correctly calculate minimal possible baudrate
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (659 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 660/700] serial: mvebu-uart: do not allow changing baudrate when uartclk is not available Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 662/700] arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART Greg Kroah-Hartman
` (44 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pali Rohár, Sasha Levin
From: Pali Rohár <pali@kernel.org>
[ Upstream commit deeaf963569a0d9d1b08babb771f61bb501a5704 ]
For default (x16) scheme which is currently used by mvebu-uart.c driver,
maximal divisor of UART base clock is 1023*16. Therefore there is limit for
minimal supported baudrate. This change calculate it correctly and prevents
setting invalid divisor 0 into hardware registers.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 68a0db1d7da2 ("serial: mvebu-uart: add function to change baudrate")
Link: https://lore.kernel.org/r/20210624224909.6350-4-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/tty/serial/mvebu-uart.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 9638ae6aae79..1e26220c7852 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -481,7 +481,7 @@ static void mvebu_uart_set_termios(struct uart_port *port,
struct ktermios *old)
{
unsigned long flags;
- unsigned int baud;
+ unsigned int baud, min_baud, max_baud;
spin_lock_irqsave(&port->lock, flags);
@@ -500,16 +500,21 @@ static void mvebu_uart_set_termios(struct uart_port *port,
port->ignore_status_mask |= STAT_RX_RDY(port) | STAT_BRK_ERR;
/*
+ * Maximal divisor is 1023 * 16 when using default (x16) scheme.
* Maximum achievable frequency with simple baudrate divisor is 230400.
* Since the error per bit frame would be of more than 15%, achieving
* higher frequencies would require to implement the fractional divisor
* feature.
*/
- baud = uart_get_baud_rate(port, termios, old, 0, 230400);
+ min_baud = DIV_ROUND_UP(port->uartclk, 1023 * 16);
+ max_baud = 230400;
+
+ baud = uart_get_baud_rate(port, termios, old, min_baud, max_baud);
if (mvebu_uart_baud_rate_set(port, baud)) {
/* No clock available, baudrate cannot be changed */
if (old)
- baud = uart_get_baud_rate(port, old, NULL, 0, 230400);
+ baud = uart_get_baud_rate(port, old, NULL,
+ min_baud, max_baud);
} else {
tty_termios_encode_baud_rate(termios, baud, baud);
uart_update_timeout(port, termios->c_cflag, baud);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 662/700] arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (660 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 661/700] serial: mvebu-uart: correctly calculate minimal possible baudrate Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 663/700] powerpc/64s/interrupt: preserve regs->softe for NMI interrupts Greg Kroah-Hartman
` (43 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Pali Rohár, Sasha Levin
From: Pali Rohár <pali@kernel.org>
[ Upstream commit 2cbfdedef39fb5994b8f1e1df068eb8440165975 ]
UART1 (standard variant with DT node name 'uart0') has register space
0x12000-0x12018 and not whole size 0x200. So fix also this in example.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: c737abc193d1 ("arm64: dts: marvell: Fix A37xx UART0 register size")
Link: https://lore.kernel.org/r/20210624224909.6350-6-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 456dcd4a7793..6ffbb099fcac 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -134,7 +134,7 @@
uart0: serial@12000 {
compatible = "marvell,armada-3700-uart";
- reg = <0x12000 0x200>;
+ reg = <0x12000 0x18>;
clocks = <&xtalclk>;
interrupts =
<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 663/700] powerpc/64s/interrupt: preserve regs->softe for NMI interrupts
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (661 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 662/700] arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 664/700] vfio/pci: Handle concurrent vma faults Greg Kroah-Hartman
` (42 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Nicholas Piggin, Michael Ellerman,
Sasha Levin
From: Nicholas Piggin <npiggin@gmail.com>
[ Upstream commit 1b0482229c302a3c6afd00d6b3bf0169cf279b44 ]
If an NMI interrupt hits in an implicit soft-masked region, regs->softe
is modified to reflect that. This may not be necessary for correctness
at the moment, but it is less surprising and it's unhelpful when
debugging or adding checks.
Make sure this is changed back to how it was found before returning.
Fixes: 4ec5feec1ad0 ("powerpc/64s: Make NMI record implicitly soft-masked code as irqs disabled")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210630074621.2109197-6-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/include/asm/interrupt.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h
index 31ed5356590a..6d15728f0680 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -120,6 +120,7 @@ struct interrupt_nmi_state {
u8 irq_happened;
#endif
u8 ftrace_enabled;
+ u64 softe;
#endif
};
@@ -129,6 +130,7 @@ static inline void interrupt_nmi_enter_prepare(struct pt_regs *regs, struct inte
#ifdef CONFIG_PPC_BOOK3S_64
state->irq_soft_mask = local_paca->irq_soft_mask;
state->irq_happened = local_paca->irq_happened;
+ state->softe = regs->softe;
/*
* Set IRQS_ALL_DISABLED unconditionally so irqs_disabled() does
@@ -178,6 +180,7 @@ static inline void interrupt_nmi_exit_prepare(struct pt_regs *regs, struct inter
#ifdef CONFIG_PPC_BOOK3S_64
/* Check we didn't change the pending interrupt mask. */
WARN_ON_ONCE((state->irq_happened | PACA_IRQ_HARD_DIS) != local_paca->irq_happened);
+ regs->softe = state->softe;
local_paca->irq_happened = state->irq_happened;
local_paca->irq_soft_mask = state->irq_soft_mask;
#endif
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 664/700] vfio/pci: Handle concurrent vma faults
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (662 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 663/700] powerpc/64s/interrupt: preserve regs->softe for NMI interrupts Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 665/700] mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK Greg Kroah-Hartman
` (41 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Zeng Tao, Alex Williamson, Sasha Levin
From: Alex Williamson <alex.williamson@redhat.com>
[ Upstream commit 6a45ece4c9af473555f01f0f8b97eba56e3c7d0d ]
io_remap_pfn_range() will trigger a BUG_ON if it encounters a
populated pte within the mapping range. This can occur because we map
the entire vma on fault and multiple faults can be blocked behind the
vma_lock. This leads to traces like the one reported below.
We can use our vma_list to test whether a given vma is mapped to avoid
this issue.
[ 1591.733256] kernel BUG at mm/memory.c:2177!
[ 1591.739515] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[ 1591.747381] Modules linked in: vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)
[ 1591.760536] CPU: 2 PID: 227 Comm: lcore-worker-2 Tainted: G O 5.11.0-rc3+ #1
[ 1591.770735] Hardware name: , BIOS HixxxxFPGA 1P B600 V121-1
[ 1591.778872] pstate: 40400009 (nZcv daif +PAN -UAO -TCO BTYPE=--)
[ 1591.786134] pc : remap_pfn_range+0x214/0x340
[ 1591.793564] lr : remap_pfn_range+0x1b8/0x340
[ 1591.799117] sp : ffff80001068bbd0
[ 1591.803476] x29: ffff80001068bbd0 x28: 0000042eff6f0000
[ 1591.810404] x27: 0000001100910000 x26: 0000001300910000
[ 1591.817457] x25: 0068000000000fd3 x24: ffffa92f1338e358
[ 1591.825144] x23: 0000001140000000 x22: 0000000000000041
[ 1591.832506] x21: 0000001300910000 x20: ffffa92f141a4000
[ 1591.839520] x19: 0000001100a00000 x18: 0000000000000000
[ 1591.846108] x17: 0000000000000000 x16: ffffa92f11844540
[ 1591.853570] x15: 0000000000000000 x14: 0000000000000000
[ 1591.860768] x13: fffffc0000000000 x12: 0000000000000880
[ 1591.868053] x11: ffff0821bf3d01d0 x10: ffff5ef2abd89000
[ 1591.875932] x9 : ffffa92f12ab0064 x8 : ffffa92f136471c0
[ 1591.883208] x7 : 0000001140910000 x6 : 0000000200000000
[ 1591.890177] x5 : 0000000000000001 x4 : 0000000000000001
[ 1591.896656] x3 : 0000000000000000 x2 : 0168044000000fd3
[ 1591.903215] x1 : ffff082126261880 x0 : fffffc2084989868
[ 1591.910234] Call trace:
[ 1591.914837] remap_pfn_range+0x214/0x340
[ 1591.921765] vfio_pci_mmap_fault+0xac/0x130 [vfio_pci]
[ 1591.931200] __do_fault+0x44/0x12c
[ 1591.937031] handle_mm_fault+0xcc8/0x1230
[ 1591.942475] do_page_fault+0x16c/0x484
[ 1591.948635] do_translation_fault+0xbc/0xd8
[ 1591.954171] do_mem_abort+0x4c/0xc0
[ 1591.960316] el0_da+0x40/0x80
[ 1591.965585] el0_sync_handler+0x168/0x1b0
[ 1591.971608] el0_sync+0x174/0x180
[ 1591.978312] Code: eb1b027f 540000c0 f9400022 b4fffe02 (d4210000)
Fixes: 11c4cd07ba11 ("vfio-pci: Fault mmaps to enable vma tracking")
Reported-by: Zeng Tao <prime.zeng@hisilicon.com>
Suggested-by: Zeng Tao <prime.zeng@hisilicon.com>
Link: https://lore.kernel.org/r/162497742783.3883260.3282953006487785034.stgit@omen
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/vfio/pci/vfio_pci.c | 29 +++++++++++++++++++++--------
1 file changed, 21 insertions(+), 8 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index cb7f2dc09e9d..94b1dc07baee 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -1612,6 +1612,7 @@ static vm_fault_t vfio_pci_mmap_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
struct vfio_pci_device *vdev = vma->vm_private_data;
+ struct vfio_pci_mmap_vma *mmap_vma;
vm_fault_t ret = VM_FAULT_NOPAGE;
mutex_lock(&vdev->vma_lock);
@@ -1619,24 +1620,36 @@ static vm_fault_t vfio_pci_mmap_fault(struct vm_fault *vmf)
if (!__vfio_pci_memory_enabled(vdev)) {
ret = VM_FAULT_SIGBUS;
- mutex_unlock(&vdev->vma_lock);
goto up_out;
}
- if (__vfio_pci_add_vma(vdev, vma)) {
- ret = VM_FAULT_OOM;
- mutex_unlock(&vdev->vma_lock);
- goto up_out;
+ /*
+ * We populate the whole vma on fault, so we need to test whether
+ * the vma has already been mapped, such as for concurrent faults
+ * to the same vma. io_remap_pfn_range() will trigger a BUG_ON if
+ * we ask it to fill the same range again.
+ */
+ list_for_each_entry(mmap_vma, &vdev->vma_list, vma_next) {
+ if (mmap_vma->vma == vma)
+ goto up_out;
}
- mutex_unlock(&vdev->vma_lock);
-
if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
- vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot)) {
ret = VM_FAULT_SIGBUS;
+ zap_vma_ptes(vma, vma->vm_start, vma->vm_end - vma->vm_start);
+ goto up_out;
+ }
+
+ if (__vfio_pci_add_vma(vdev, vma)) {
+ ret = VM_FAULT_OOM;
+ zap_vma_ptes(vma, vma->vm_start, vma->vm_end - vma->vm_start);
+ }
up_out:
up_read(&vdev->memory_lock);
+ mutex_unlock(&vdev->vma_lock);
return ret;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 665/700] mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (663 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 664/700] vfio/pci: Handle concurrent vma faults Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 666/700] mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled() Greg Kroah-Hartman
` (40 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Yang Shi,
Anshuman Khandual, David Hildenbrand, Zi Yan, William Kucharski,
Matthew Wilcox, Aneesh Kumar K . V, Ralph Campbell, Song Liu,
Kirill A. Shutemov, Rik van Riel, Johannes Weiner, Minchan Kim,
Hugh Dickins, Alexey Dobriyan, Mike Kravetz, Andrew Morton,
Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit b2bd53f18bb7f7cfc91b3bb527d7809376700a8e ]
Patch series "Cleanup and fixup for huge_memory:, v3.
This series contains cleanups to remove dedicated macro and remove
unnecessary tlb_remove_page_size() for huge zero pmd. Also this adds
missing read-only THP checking for transparent_hugepage_enabled() and
avoids discarding hugepage if other processes are mapping it. More
details can be found in the respective changelogs.
Thi patch (of 5):
Rewrite the pgoff checking logic to remove macro HPAGE_CACHE_INDEX_MASK
which is only used here to simplify the code.
Link: https://lkml.kernel.org/r/20210511134857.1581273-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210511134857.1581273-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/huge_mm.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 6686a0baa91d..2a7c58ea5ca9 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -155,15 +155,13 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
bool transparent_hugepage_enabled(struct vm_area_struct *vma);
-#define HPAGE_CACHE_INDEX_MASK (HPAGE_PMD_NR - 1)
-
static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
unsigned long haddr)
{
/* Don't have to check pgoff for anonymous vma */
if (!vma_is_anonymous(vma)) {
- if (((vma->vm_start >> PAGE_SHIFT) & HPAGE_CACHE_INDEX_MASK) !=
- (vma->vm_pgoff & HPAGE_CACHE_INDEX_MASK))
+ if (!IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff,
+ HPAGE_PMD_NR))
return false;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 666/700] mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (664 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 665/700] mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 667/700] mm/huge_memory.c: dont discard hugepage if other processes are mapping it Greg Kroah-Hartman
` (39 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Yang Shi,
Alexey Dobriyan, Aneesh Kumar K . V, Anshuman Khandual,
David Hildenbrand, Hugh Dickins, Johannes Weiner,
Kirill A. Shutemov, Matthew Wilcox, Minchan Kim, Ralph Campbell,
Rik van Riel, Song Liu, William Kucharski, Zi Yan, Mike Kravetz,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit e6be37b2e7bddfe0c76585ee7c7eee5acc8efeab ]
Since commit 99cb0dbd47a1 ("mm,thp: add read-only THP support for
(non-shmem) FS"), read-only THP file mapping is supported. But it forgot
to add checking for it in transparent_hugepage_enabled(). To fix it, we
add checking for read-only THP file mapping and also introduce helper
transhuge_vma_enabled() to check whether thp is enabled for specified vma
to reduce duplicated code. We rename transparent_hugepage_enabled to
transparent_hugepage_active to make the code easier to follow as suggested
by David Hildenbrand.
[linmiaohe@huawei.com: define transhuge_vma_enabled next to transhuge_vma_suitable]
Link: https://lkml.kernel.org/r/20210514093007.4117906-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210511134857.1581273-4-linmiaohe@huawei.com
Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/proc/task_mmu.c | 2 +-
include/linux/huge_mm.h | 57 +++++++++++++++++++++++++----------------
mm/huge_memory.c | 11 +++++++-
mm/khugepaged.c | 4 +--
mm/shmem.c | 3 +--
5 files changed, 48 insertions(+), 29 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index e862cab69583..a3f27ccec742 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -829,7 +829,7 @@ static int show_smap(struct seq_file *m, void *v)
__show_smap(m, &mss, false);
seq_printf(m, "THPeligible: %d\n",
- transparent_hugepage_enabled(vma));
+ transparent_hugepage_active(vma));
if (arch_pkeys_enabled())
seq_printf(m, "ProtectionKey: %8u\n", vma_pkey(vma));
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 2a7c58ea5ca9..e72787731a5b 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -118,9 +118,34 @@ extern struct kobj_attribute shmem_enabled_attr;
extern unsigned long transparent_hugepage_flags;
+static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
+ unsigned long haddr)
+{
+ /* Don't have to check pgoff for anonymous vma */
+ if (!vma_is_anonymous(vma)) {
+ if (!IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff,
+ HPAGE_PMD_NR))
+ return false;
+ }
+
+ if (haddr < vma->vm_start || haddr + HPAGE_PMD_SIZE > vma->vm_end)
+ return false;
+ return true;
+}
+
+static inline bool transhuge_vma_enabled(struct vm_area_struct *vma,
+ unsigned long vm_flags)
+{
+ /* Explicitly disabled through madvise. */
+ if ((vm_flags & VM_NOHUGEPAGE) ||
+ test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))
+ return false;
+ return true;
+}
+
/*
* to be used on vmas which are known to support THP.
- * Use transparent_hugepage_enabled otherwise
+ * Use transparent_hugepage_active otherwise
*/
static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
{
@@ -131,15 +156,12 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
if (transparent_hugepage_flags & (1 << TRANSPARENT_HUGEPAGE_NEVER_DAX))
return false;
- if (vma->vm_flags & VM_NOHUGEPAGE)
+ if (!transhuge_vma_enabled(vma, vma->vm_flags))
return false;
if (vma_is_temporary_stack(vma))
return false;
- if (test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))
- return false;
-
if (transparent_hugepage_flags & (1 << TRANSPARENT_HUGEPAGE_FLAG))
return true;
@@ -153,22 +175,7 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
return false;
}
-bool transparent_hugepage_enabled(struct vm_area_struct *vma);
-
-static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
- unsigned long haddr)
-{
- /* Don't have to check pgoff for anonymous vma */
- if (!vma_is_anonymous(vma)) {
- if (!IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff,
- HPAGE_PMD_NR))
- return false;
- }
-
- if (haddr < vma->vm_start || haddr + HPAGE_PMD_SIZE > vma->vm_end)
- return false;
- return true;
-}
+bool transparent_hugepage_active(struct vm_area_struct *vma);
#define transparent_hugepage_use_zero_page() \
(transparent_hugepage_flags & \
@@ -355,7 +362,7 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
return false;
}
-static inline bool transparent_hugepage_enabled(struct vm_area_struct *vma)
+static inline bool transparent_hugepage_active(struct vm_area_struct *vma)
{
return false;
}
@@ -366,6 +373,12 @@ static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
return false;
}
+static inline bool transhuge_vma_enabled(struct vm_area_struct *vma,
+ unsigned long vm_flags)
+{
+ return false;
+}
+
static inline void prep_transhuge_page(struct page *page) {}
static inline bool is_transparent_hugepage(struct page *page)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 44c455dbbd63..3120b6952f0d 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -63,7 +63,14 @@ static atomic_t huge_zero_refcount;
struct page *huge_zero_page __read_mostly;
unsigned long huge_zero_pfn __read_mostly = ~0UL;
-bool transparent_hugepage_enabled(struct vm_area_struct *vma)
+static inline bool file_thp_enabled(struct vm_area_struct *vma)
+{
+ return transhuge_vma_enabled(vma, vma->vm_flags) && vma->vm_file &&
+ !inode_is_open_for_write(vma->vm_file->f_inode) &&
+ (vma->vm_flags & VM_EXEC);
+}
+
+bool transparent_hugepage_active(struct vm_area_struct *vma)
{
/* The addr is used to check if the vma size fits */
unsigned long addr = (vma->vm_end & HPAGE_PMD_MASK) - HPAGE_PMD_SIZE;
@@ -74,6 +81,8 @@ bool transparent_hugepage_enabled(struct vm_area_struct *vma)
return __transparent_hugepage_enabled(vma);
if (vma_is_shmem(vma))
return shmem_huge_enabled(vma);
+ if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS))
+ return file_thp_enabled(vma);
return false;
}
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 2680d5ffee7f..1259efcd94ca 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -442,9 +442,7 @@ static inline int khugepaged_test_exit(struct mm_struct *mm)
static bool hugepage_vma_check(struct vm_area_struct *vma,
unsigned long vm_flags)
{
- /* Explicitly disabled through madvise. */
- if ((vm_flags & VM_NOHUGEPAGE) ||
- test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))
+ if (!transhuge_vma_enabled(vma, vm_flags))
return false;
/* Enabled via shmem mount options or sysfs settings. */
diff --git a/mm/shmem.c b/mm/shmem.c
index 1a03744240e7..3c39116fd071 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4037,8 +4037,7 @@ bool shmem_huge_enabled(struct vm_area_struct *vma)
loff_t i_size;
pgoff_t off;
- if ((vma->vm_flags & VM_NOHUGEPAGE) ||
- test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))
+ if (!transhuge_vma_enabled(vma, vma->vm_flags))
return false;
if (shmem_huge == SHMEM_HUGE_FORCE)
return true;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 667/700] mm/huge_memory.c: dont discard hugepage if other processes are mapping it
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (665 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 666/700] mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 668/700] hugetlb: remove prep_compound_huge_page cleanup Greg Kroah-Hartman
` (38 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Yang Shi, Miaohe Lin,
Alexey Dobriyan, Aneesh Kumar K . V, Anshuman Khandual,
David Hildenbrand, Hugh Dickins, Johannes Weiner,
Kirill A. Shutemov, Matthew Wilcox, Minchan Kim, Ralph Campbell,
Rik van Riel, Song Liu, William Kucharski, Zi Yan, Mike Kravetz,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit babbbdd08af98a59089334eb3effbed5a7a0cf7f ]
If other processes are mapping any other subpages of the hugepage, i.e.
in pte-mapped thp case, page_mapcount() will return 1 incorrectly. Then
we would discard the page while other processes are still mapping it. Fix
it by using total_mapcount() which can tell whether other processes are
still mapping it.
Link: https://lkml.kernel.org/r/20210511134857.1581273-6-linmiaohe@huawei.com
Fixes: b8d3c4c3009d ("mm/huge_memory.c: don't split THP page when MADV_FREE syscall is called")
Reviewed-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/huge_memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 3120b6952f0d..bc642923e0c9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1615,7 +1615,7 @@ bool madvise_free_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
* If other processes are mapping this page, we couldn't discard
* the page unless they all do MADV_FREE so let's skip the page.
*/
- if (page_mapcount(page) != 1)
+ if (total_mapcount(page) != 1)
goto out;
if (!trylock_page(page))
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 668/700] hugetlb: remove prep_compound_huge_page cleanup
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (666 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 667/700] mm/huge_memory.c: dont discard hugepage if other processes are mapping it Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 669/700] hugetlb: address ref count racing in prep_compound_gigantic_page Greg Kroah-Hartman
` (37 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mike Kravetz, Andrea Arcangeli,
Jan Kara, Jann Horn, John Hubbard, Kirill A . Shutemov,
Matthew Wilcox, Michal Hocko, Youquan Song, Muchun Song,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Mike Kravetz <mike.kravetz@oracle.com>
[ Upstream commit 48b8d744ea841b8adf8d07bfe7a2d55f22e4d179 ]
Patch series "Fix prep_compound_gigantic_page ref count adjustment".
These patches address the possible race between
prep_compound_gigantic_page and __page_cache_add_speculative as described
by Jann Horn in [1].
The first patch simply removes the unnecessary/obsolete helper routine
prep_compound_huge_page to make the actual fix a little simpler.
The second patch is the actual fix and has a detailed explanation in the
commit message.
This potential issue has existed for almost 10 years and I am unaware of
anyone actually hitting the race. I did not cc stable, but would be happy
to squash the patches and send to stable if anyone thinks that is a good
idea.
[1] https://lore.kernel.org/linux-mm/CAG48ez23q0Jy9cuVnwAe7t_fdhMk2S7N5Hdi-GLcCeq5bsfLxw@mail.gmail.com/
This patch (of 2):
I could not think of a reliable way to recreate the issue for testing.
Rather, I 'simulated errors' to exercise all the error paths.
The routine prep_compound_huge_page is a simple wrapper to call either
prep_compound_gigantic_page or prep_compound_page. However, it is only
called from gather_bootmem_prealloc which only processes gigantic pages.
Eliminate the routine and call prep_compound_gigantic_page directly.
Link: https://lkml.kernel.org/r/20210622021423.154662-1-mike.kravetz@oracle.com
Link: https://lkml.kernel.org/r/20210622021423.154662-2-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Youquan Song <youquan.song@intel.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/hugetlb.c | 29 ++++++++++-------------------
1 file changed, 10 insertions(+), 19 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 7ba7d9b20494..dbf44b92651b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1313,8 +1313,6 @@ static struct page *alloc_gigantic_page(struct hstate *h, gfp_t gfp_mask,
return alloc_contig_pages(nr_pages, gfp_mask, nid, nodemask);
}
-static void prep_new_huge_page(struct hstate *h, struct page *page, int nid);
-static void prep_compound_gigantic_page(struct page *page, unsigned int order);
#else /* !CONFIG_CONTIG_ALLOC */
static struct page *alloc_gigantic_page(struct hstate *h, gfp_t gfp_mask,
int nid, nodemask_t *nodemask)
@@ -2504,16 +2502,10 @@ found:
return 1;
}
-static void __init prep_compound_huge_page(struct page *page,
- unsigned int order)
-{
- if (unlikely(order > (MAX_ORDER - 1)))
- prep_compound_gigantic_page(page, order);
- else
- prep_compound_page(page, order);
-}
-
-/* Put bootmem huge pages into the standard lists after mem_map is up */
+/*
+ * Put bootmem huge pages into the standard lists after mem_map is up.
+ * Note: This only applies to gigantic (order > MAX_ORDER) pages.
+ */
static void __init gather_bootmem_prealloc(void)
{
struct huge_bootmem_page *m;
@@ -2522,20 +2514,19 @@ static void __init gather_bootmem_prealloc(void)
struct page *page = virt_to_page(m);
struct hstate *h = m->hstate;
+ VM_BUG_ON(!hstate_is_gigantic(h));
WARN_ON(page_count(page) != 1);
- prep_compound_huge_page(page, huge_page_order(h));
+ prep_compound_gigantic_page(page, huge_page_order(h));
WARN_ON(PageReserved(page));
prep_new_huge_page(h, page, page_to_nid(page));
put_page(page); /* free it into the hugepage allocator */
/*
- * If we had gigantic hugepages allocated at boot time, we need
- * to restore the 'stolen' pages to totalram_pages in order to
- * fix confusing memory reports from free(1) and another
- * side-effects, like CommitLimit going negative.
+ * We need to restore the 'stolen' pages to totalram_pages
+ * in order to fix confusing memory reports from free(1) and
+ * other side-effects, like CommitLimit going negative.
*/
- if (hstate_is_gigantic(h))
- adjust_managed_page_count(page, pages_per_huge_page(h));
+ adjust_managed_page_count(page, pages_per_huge_page(h));
cond_resched();
}
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 669/700] hugetlb: address ref count racing in prep_compound_gigantic_page
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (667 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 668/700] hugetlb: remove prep_compound_huge_page cleanup Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-13 21:37 ` Mike Kravetz
2021-07-12 6:12 ` [PATCH 5.12 670/700] mm/z3fold: fix potential memory leak in z3fold_destroy_pool() Greg Kroah-Hartman
` (36 subsequent siblings)
705 siblings, 1 reply; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Mike Kravetz, Jann Horn,
Youquan Song, Andrea Arcangeli, Jan Kara, John Hubbard,
Kirill A . Shutemov, Matthew Wilcox, Michal Hocko, Muchun Song,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Mike Kravetz <mike.kravetz@oracle.com>
[ Upstream commit 7118fc2906e2925d7edb5ed9c8a57f2a5f23b849 ]
In [1], Jann Horn points out a possible race between
prep_compound_gigantic_page and __page_cache_add_speculative. The root
cause of the possible race is prep_compound_gigantic_page uncondittionally
setting the ref count of pages to zero. It does this because
prep_compound_gigantic_page is handed a 'group' of pages from an allocator
and needs to convert that group of pages to a compound page. The ref
count of each page in this 'group' is one as set by the allocator.
However, the ref count of compound page tail pages must be zero.
The potential race comes about when ref counted pages are returned from
the allocator. When this happens, other mm code could also take a
reference on the page. __page_cache_add_speculative is one such example.
Therefore, prep_compound_gigantic_page can not just set the ref count of
pages to zero as it does today. Doing so would lose the reference taken
by any other code. This would lead to BUGs in code checking ref counts
and could possibly even lead to memory corruption.
There are two possible ways to address this issue.
1) Make all allocators of gigantic groups of pages be able to return a
properly constructed compound page.
2) Make prep_compound_gigantic_page be more careful when constructing a
compound page.
This patch takes approach 2.
In prep_compound_gigantic_page, use cmpxchg to only set ref count to zero
if it is one. If the cmpxchg fails, call synchronize_rcu() in the hope
that the extra ref count will be driopped during a rcu grace period. This
is not a performance critical code path and the wait should be
accceptable. If the ref count is still inflated after the grace period,
then undo any modifications made and return an error.
Currently prep_compound_gigantic_page is type void and does not return
errors. Modify the two callers to check for and handle error returns. On
error, the caller must free the 'group' of pages as they can not be used
to form a gigantic page. After freeing pages, the runtime caller
(alloc_fresh_huge_page) will retry the allocation once. Boot time
allocations can not be retried.
The routine prep_compound_page also unconditionally sets the ref count of
compound page tail pages to zero. However, in this case the buddy
allocator is constructing a compound page from freshly allocated pages.
The ref count on those freshly allocated pages is already zero, so the
set_page_count(p, 0) is unnecessary and could lead to confusion. Just
remove it.
[1] https://lore.kernel.org/linux-mm/CAG48ez23q0Jy9cuVnwAe7t_fdhMk2S7N5Hdi-GLcCeq5bsfLxw@mail.gmail.com/
Link: https://lkml.kernel.org/r/20210622021423.154662-3-mike.kravetz@oracle.com
Fixes: 58a84aa92723 ("thp: set compound tail page _count to zero")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: Jann Horn <jannh@google.com>
Cc: Youquan Song <youquan.song@intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/hugetlb.c | 72 +++++++++++++++++++++++++++++++++++++++++++------
mm/page_alloc.c | 1 -
2 files changed, 64 insertions(+), 9 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index dbf44b92651b..9fdcad652c34 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1504,9 +1504,9 @@ static void prep_new_huge_page(struct hstate *h, struct page *page, int nid)
spin_unlock(&hugetlb_lock);
}
-static void prep_compound_gigantic_page(struct page *page, unsigned int order)
+static bool prep_compound_gigantic_page(struct page *page, unsigned int order)
{
- int i;
+ int i, j;
int nr_pages = 1 << order;
struct page *p = page + 1;
@@ -1528,11 +1528,48 @@ static void prep_compound_gigantic_page(struct page *page, unsigned int order)
* after get_user_pages().
*/
__ClearPageReserved(p);
+ /*
+ * Subtle and very unlikely
+ *
+ * Gigantic 'page allocators' such as memblock or cma will
+ * return a set of pages with each page ref counted. We need
+ * to turn this set of pages into a compound page with tail
+ * page ref counts set to zero. Code such as speculative page
+ * cache adding could take a ref on a 'to be' tail page.
+ * We need to respect any increased ref count, and only set
+ * the ref count to zero if count is currently 1. If count
+ * is not 1, we call synchronize_rcu in the hope that a rcu
+ * grace period will cause ref count to drop and then retry.
+ * If count is still inflated on retry we return an error and
+ * must discard the pages.
+ */
+ if (!page_ref_freeze(p, 1)) {
+ pr_info("HugeTLB unexpected inflated ref count on freshly allocated page\n");
+ synchronize_rcu();
+ if (!page_ref_freeze(p, 1))
+ goto out_error;
+ }
set_page_count(p, 0);
set_compound_head(p, page);
}
atomic_set(compound_mapcount_ptr(page), -1);
atomic_set(compound_pincount_ptr(page), 0);
+ return true;
+
+out_error:
+ /* undo tail page modifications made above */
+ p = page + 1;
+ for (j = 1; j < i; j++, p = mem_map_next(p, page, j)) {
+ clear_compound_head(p);
+ set_page_refcounted(p);
+ }
+ /* need to clear PG_reserved on remaining tail pages */
+ for (; j < nr_pages; j++, p = mem_map_next(p, page, j))
+ __ClearPageReserved(p);
+ set_compound_order(page, 0);
+ page[1].compound_nr = 0;
+ __ClearPageHead(page);
+ return false;
}
/*
@@ -1652,7 +1689,9 @@ static struct page *alloc_fresh_huge_page(struct hstate *h,
nodemask_t *node_alloc_noretry)
{
struct page *page;
+ bool retry = false;
+retry:
if (hstate_is_gigantic(h))
page = alloc_gigantic_page(h, gfp_mask, nid, nmask);
else
@@ -1661,8 +1700,21 @@ static struct page *alloc_fresh_huge_page(struct hstate *h,
if (!page)
return NULL;
- if (hstate_is_gigantic(h))
- prep_compound_gigantic_page(page, huge_page_order(h));
+ if (hstate_is_gigantic(h)) {
+ if (!prep_compound_gigantic_page(page, huge_page_order(h))) {
+ /*
+ * Rare failure to convert pages to compound page.
+ * Free pages and try again - ONCE!
+ */
+ free_gigantic_page(page, huge_page_order(h));
+ if (!retry) {
+ retry = true;
+ goto retry;
+ }
+ pr_warn("HugeTLB page can not be used due to unexpected inflated ref count\n");
+ return NULL;
+ }
+ }
prep_new_huge_page(h, page, page_to_nid(page));
return page;
@@ -2516,10 +2568,14 @@ static void __init gather_bootmem_prealloc(void)
VM_BUG_ON(!hstate_is_gigantic(h));
WARN_ON(page_count(page) != 1);
- prep_compound_gigantic_page(page, huge_page_order(h));
- WARN_ON(PageReserved(page));
- prep_new_huge_page(h, page, page_to_nid(page));
- put_page(page); /* free it into the hugepage allocator */
+ if (prep_compound_gigantic_page(page, huge_page_order(h))) {
+ WARN_ON(PageReserved(page));
+ prep_new_huge_page(h, page, page_to_nid(page));
+ put_page(page); /* add to the hugepage allocator */
+ } else {
+ free_gigantic_page(page, huge_page_order(h));
+ pr_warn("HugeTLB page can not be used due to unexpected inflated ref count\n");
+ }
/*
* We need to restore the 'stolen' pages to totalram_pages
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 382af5377274..fe9b8975e69d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -676,7 +676,6 @@ void prep_compound_page(struct page *page, unsigned int order)
__SetPageHead(page);
for (i = 1; i < nr_pages; i++) {
struct page *p = page + i;
- set_page_count(p, 0);
p->mapping = TAIL_MAPPING;
set_compound_head(p, page);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* Re: [PATCH 5.12 669/700] hugetlb: address ref count racing in prep_compound_gigantic_page
2021-07-12 6:12 ` [PATCH 5.12 669/700] hugetlb: address ref count racing in prep_compound_gigantic_page Greg Kroah-Hartman
@ 2021-07-13 21:37 ` Mike Kravetz
0 siblings, 0 replies; 708+ messages in thread
From: Mike Kravetz @ 2021-07-13 21:37 UTC (permalink / raw)
To: Greg Kroah-Hartman, linux-kernel
Cc: stable, Jann Horn, Youquan Song, Andrea Arcangeli, Jan Kara,
John Hubbard, Kirill A . Shutemov, Matthew Wilcox, Michal Hocko,
Muchun Song, Andrew Morton, Linus Torvalds, Sasha Levin
On 7/11/21 11:12 PM, Greg Kroah-Hartman wrote:
> From: Mike Kravetz <mike.kravetz@oracle.com>
>
> [ Upstream commit 7118fc2906e2925d7edb5ed9c8a57f2a5f23b849 ]
>
Please do not add or the requisite patch to stable tree.
Although this is a real potential issue, it was only found during code
inspection. It has existed for more than 10 years and I am unaware of
anyone hitting this in actual use. In addition, this proposed fix will
likely be updated/simplified based on more discussions.
--
Mike Kravetz
^ permalink raw reply [flat|nested] 708+ messages in thread
* [PATCH 5.12 670/700] mm/z3fold: fix potential memory leak in z3fold_destroy_pool()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (668 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 669/700] hugetlb: address ref count racing in prep_compound_gigantic_page Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 671/700] mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page Greg Kroah-Hartman
` (35 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Vitaly Wool,
Hillf Danton, Andrew Morton, Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit dac0d1cfda56472378d330b1b76b9973557a7b1d ]
There is a memory leak in z3fold_destroy_pool() as it forgets to
free_percpu pool->unbuddied. Call free_percpu for pool->unbuddied to fix
this issue.
Link: https://lkml.kernel.org/r/20210619093151.1492174-6-linmiaohe@huawei.com
Fixes: d30561c56f41 ("z3fold: use per-cpu unbuddied lists")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Hillf Danton <hdanton@sina.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/z3fold.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/z3fold.c b/mm/z3fold.c
index 9d889ad2bb86..56a5551f2ba8 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -1059,6 +1059,7 @@ static void z3fold_destroy_pool(struct z3fold_pool *pool)
destroy_workqueue(pool->compact_wq);
destroy_workqueue(pool->release_wq);
z3fold_unregister_migration(pool);
+ free_percpu(pool->unbuddied);
kfree(pool);
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 671/700] mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (669 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 670/700] mm/z3fold: fix potential memory leak in z3fold_destroy_pool() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 672/700] mm: migrate: fix missing update page_private to hugetlb_page_subpool Greg Kroah-Hartman
` (34 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Vitaly Wool,
Hillf Danton, Andrew Morton, Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit 28473d91ff7f686d58047ff55f2fa98ab59114a4 ]
We should use release_z3fold_page_locked() to release z3fold page when
it's locked, although it looks harmless to use release_z3fold_page() now.
Link: https://lkml.kernel.org/r/20210619093151.1492174-7-linmiaohe@huawei.com
Fixes: dcf5aedb24f8 ("z3fold: stricter locking and more careful reclaim")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Hillf Danton <hdanton@sina.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/z3fold.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/z3fold.c b/mm/z3fold.c
index 56a5551f2ba8..7c417fb8404a 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -1383,7 +1383,7 @@ static int z3fold_reclaim_page(struct z3fold_pool *pool, unsigned int retries)
if (zhdr->foreign_handles ||
test_and_set_bit(PAGE_CLAIMED, &page->private)) {
if (kref_put(&zhdr->refcount,
- release_z3fold_page))
+ release_z3fold_page_locked))
atomic64_dec(&pool->pages_nr);
else
z3fold_page_unlock(zhdr);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 672/700] mm: migrate: fix missing update page_private to hugetlb_page_subpool
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (670 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 671/700] mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 673/700] mm/zswap.c: fix two bugs in zswap_writeback_entry() Greg Kroah-Hartman
` (33 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Muchun Song, Anshuman Khandual,
Mike Kravetz, Michal Hocko, Oscar Salvador, David Hildenbrand,
Matthew Wilcox, Xiongchun Duan, Andrew Morton, Linus Torvalds,
Sasha Levin
From: Muchun Song <songmuchun@bytedance.com>
[ Upstream commit 6acfb5ba150cf75005ce85e0e25d79ef2fec287c ]
Since commit d6995da31122 ("hugetlb: use page.private for hugetlb specific
page flags") converts page.private for hugetlb specific page flags. We
should use hugetlb_page_subpool() to get the subpool pointer instead of
page_private().
This 'could' prevent the migration of hugetlb pages. page_private(hpage)
is now used for hugetlb page specific flags. At migration time, the only
flag which could be set is HPageVmemmapOptimized. This flag will only be
set if the new vmemmap reduction feature is enabled. In addition,
!page_mapping() implies an anonymous mapping. So, this will prevent
migration of hugetb pages in anonymous mappings if the vmemmap reduction
feature is enabled.
In addition, that if statement checked for the rare race condition of a
page being migrated while in the process of being freed. Since that check
is now wrong, we could leak hugetlb subpool usage counts.
The commit forgot to update it in the page migration routine. So fix it.
[songmuchun@bytedance.com: fix compiler error when !CONFIG_HUGETLB_PAGE reported by Randy]
Link: https://lkml.kernel.org/r/20210521022747.35736-1-songmuchun@bytedance.com
Link: https://lkml.kernel.org/r/20210520025949.1866-1-songmuchun@bytedance.com
Fixes: d6995da31122 ("hugetlb: use page.private for hugetlb specific page flags")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Reported-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Tested-by: Anshuman Khandual <anshuman.khandual@arm.com> [arm64]
Cc: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Xiongchun Duan <duanxiongchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/hugetlb.h | 5 +++++
mm/migrate.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 28fa3f9bbbfd..7bbef3f195ae 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -862,6 +862,11 @@ static inline void huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
#else /* CONFIG_HUGETLB_PAGE */
struct hstate {};
+static inline struct hugepage_subpool *hugetlb_page_subpool(struct page *hpage)
+{
+ return NULL;
+}
+
static inline struct page *alloc_huge_page(struct vm_area_struct *vma,
unsigned long addr,
int avoid_reserve)
diff --git a/mm/migrate.c b/mm/migrate.c
index 40455e753c5b..3138600cf435 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1315,7 +1315,7 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
* page_mapping() set, hugetlbfs specific move page routine will not
* be called and we could leak usage counts for subpools.
*/
- if (page_private(hpage) && !page_mapping(hpage)) {
+ if (hugetlb_page_subpool(hpage) && !page_mapping(hpage)) {
rc = -EBUSY;
goto out_unlock;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 673/700] mm/zswap.c: fix two bugs in zswap_writeback_entry()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (671 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 672/700] mm: migrate: fix missing update page_private to hugetlb_page_subpool Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 674/700] lib/math/rational.c: fix divide by zero Greg Kroah-Hartman
` (32 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Miaohe Lin, Colin Ian King,
Dan Streetman, Nathan Chancellor, Sebastian Andrzej Siewior,
Seth Jennings, Tian Tao, Vitaly Wool, Andrew Morton,
Linus Torvalds, Sasha Levin
From: Miaohe Lin <linmiaohe@huawei.com>
[ Upstream commit 46b76f2e09dc35f70aca2f4349eb0d158f53fe93 ]
In the ZSWAP_SWAPCACHE_FAIL and ZSWAP_SWAPCACHE_EXIST case, we forgot to
call zpool_unmap_handle() when zpool can't sleep. And we might sleep in
zswap_get_swap_cache_page() while zpool can't sleep. To fix all of these,
zpool_unmap_handle() should be done before zswap_get_swap_cache_page()
when zpool can't sleep.
Link: https://lkml.kernel.org/r/20210522092242.3233191-4-linmiaohe@huawei.com
Fixes: fc6697a89f56 ("mm/zswap: add the flag can_sleep_mapped")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Tian Tao <tiantao6@hisilicon.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/zswap.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/mm/zswap.c b/mm/zswap.c
index 578d9f256920..91f7439fde7f 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -967,6 +967,13 @@ static int zswap_writeback_entry(struct zpool *pool, unsigned long handle)
spin_unlock(&tree->lock);
BUG_ON(offset != entry->offset);
+ src = (u8 *)zhdr + sizeof(struct zswap_header);
+ if (!zpool_can_sleep_mapped(pool)) {
+ memcpy(tmp, src, entry->length);
+ src = tmp;
+ zpool_unmap_handle(pool, handle);
+ }
+
/* try to allocate swap cache page */
switch (zswap_get_swap_cache_page(swpentry, &page)) {
case ZSWAP_SWAPCACHE_FAIL: /* no memory or invalidate happened */
@@ -982,17 +989,7 @@ static int zswap_writeback_entry(struct zpool *pool, unsigned long handle)
case ZSWAP_SWAPCACHE_NEW: /* page is locked */
/* decompress */
acomp_ctx = raw_cpu_ptr(entry->pool->acomp_ctx);
-
dlen = PAGE_SIZE;
- src = (u8 *)zhdr + sizeof(struct zswap_header);
-
- if (!zpool_can_sleep_mapped(pool)) {
-
- memcpy(tmp, src, entry->length);
- src = tmp;
-
- zpool_unmap_handle(pool, handle);
- }
mutex_lock(acomp_ctx->mutex);
sg_init_one(&input, src, entry->length);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 674/700] lib/math/rational.c: fix divide by zero
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (672 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 673/700] mm/zswap.c: fix two bugs in zswap_writeback_entry() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 675/700] selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random Greg Kroah-Hartman
` (31 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Trent Piepho, Yiyuan Guo,
Andy Shevchenko, Oskar Schirmer, Daniel Latypov, Andrew Morton,
Linus Torvalds, Sasha Levin
From: Trent Piepho <tpiepho@gmail.com>
[ Upstream commit 65a0d3c14685663ba111038a35db70f559e39336 ]
If the input is out of the range of the allowed values, either larger than
the largest value or closer to zero than the smallest non-zero allowed
value, then a division by zero would occur.
In the case of input too large, the division by zero will occur on the
first iteration. The best result (largest allowed value) will be found by
always choosing the semi-convergent and excluding the denominator based
limit when finding it.
In the case of the input too small, the division by zero will occur on the
second iteration. The numerator based semi-convergent should not be
calculated to avoid the division by zero. But the semi-convergent vs
previous convergent test is still needed, which effectively chooses
between 0 (the previous convergent) vs the smallest allowed fraction (best
semi-convergent) as the result.
Link: https://lkml.kernel.org/r/20210525144250.214670-1-tpiepho@gmail.com
Fixes: 323dd2c3ed0 ("lib/math/rational.c: fix possible incorrect result from rational fractions helper")
Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Reported-by: Yiyuan Guo <yguoaz@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Oskar Schirmer <oskar@scara.com>
Cc: Daniel Latypov <dlatypov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
lib/math/rational.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/lib/math/rational.c b/lib/math/rational.c
index 9781d521963d..c0ab51d8fbb9 100644
--- a/lib/math/rational.c
+++ b/lib/math/rational.c
@@ -12,6 +12,7 @@
#include <linux/compiler.h>
#include <linux/export.h>
#include <linux/minmax.h>
+#include <linux/limits.h>
/*
* calculate best rational approximation for a given fraction
@@ -78,13 +79,18 @@ void rational_best_approximation(
* found below as 't'.
*/
if ((n2 > max_numerator) || (d2 > max_denominator)) {
- unsigned long t = min((max_numerator - n0) / n1,
- (max_denominator - d0) / d1);
+ unsigned long t = ULONG_MAX;
- /* This tests if the semi-convergent is closer
- * than the previous convergent.
+ if (d1)
+ t = (max_denominator - d0) / d1;
+ if (n1)
+ t = min(t, (max_numerator - n0) / n1);
+
+ /* This tests if the semi-convergent is closer than the previous
+ * convergent. If d1 is zero there is no previous convergent as this
+ * is the 1st iteration, so always choose the semi-convergent.
*/
- if (2u * t > a || (2u * t == a && d0 * dp > d1 * d)) {
+ if (!d1 || 2u * t > a || (2u * t == a && d0 * dp > d1 * d)) {
n1 = n0 + t * n1;
d1 = d0 + t * d1;
}
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 675/700] selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (673 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 674/700] lib/math/rational.c: fix divide by zero Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 676/700] selftests/vm/pkeys: handle negative sys_pkey_alloc() return code Greg Kroah-Hartman
` (30 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dave Hansen, Thomas Gleixner,
Aneesh Kumar K.V, Ram Pai, Sandipan Das, Florian Weimer,
Desnes A. Nunes do Rosario, Ingo Molnar, Thiago Jung Bauermann,
Michael Ellerman, Michal Hocko, Michal Suchanek, Shuah Khan,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Dave Hansen <dave.hansen@linux.intel.com>
[ Upstream commit f36ef407628835a7d7fb3d235b1f1aac7022d9a3 ]
Patch series "selftests/vm/pkeys: Bug fixes and a new test".
There has been a lot of activity on the x86 front around the XSAVE
architecture which is used to context-switch processor state (among other
things). In addition, AMD has recently joined the protection keys club by
adding processor support for PKU.
The AMD implementation helped uncover a kernel bug around the PKRU "init
state", which actually applied to Intel's implementation but was just
harder to hit. This series adds a test which is expected to help find
this class of bug both on AMD and Intel. All the work around pkeys on x86
also uncovered a few bugs in the selftest.
This patch (of 4):
The "random" pkey allocation code currently does the good old:
srand((unsigned int)time(NULL));
*But*, it unfortunately does this on every random pkey allocation.
There may be thousands of these a second. time() has a one second
resolution. So, each time alloc_random_pkey() is called, the PRNG is
*RESET* to time(). This is nasty. Normally, if you do:
srand(<ANYTHING>);
foo = rand();
bar = rand();
You'll be quite guaranteed that 'foo' and 'bar' are different. But, if
you do:
srand(1);
foo = rand();
srand(1);
bar = rand();
You are quite guaranteed that 'foo' and 'bar' are the *SAME*. The recent
"fix" effectively forced the test case to use the same "random" pkey for
the whole test, unless the test run crossed a second boundary.
Only run srand() once at program startup.
This explains some very odd and persistent test failures I've been seeing.
Link: https://lkml.kernel.org/r/20210611164153.91B76FB8@viggo.jf.intel.com
Link: https://lkml.kernel.org/r/20210611164155.192D00FF@viggo.jf.intel.com
Fixes: 6e373263ce07 ("selftests/vm/pkeys: fix alloc_random_pkey() to make it really random")
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/vm/protection_keys.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
index fdbb602ecf32..9ee0ae5d3e06 100644
--- a/tools/testing/selftests/vm/protection_keys.c
+++ b/tools/testing/selftests/vm/protection_keys.c
@@ -561,7 +561,6 @@ int alloc_random_pkey(void)
int nr_alloced = 0;
int random_index;
memset(alloced_pkeys, 0, sizeof(alloced_pkeys));
- srand((unsigned int)time(NULL));
/* allocate every possible key and make a note of which ones we got */
max_nr_pkey_allocs = NR_PKEYS;
@@ -1552,6 +1551,8 @@ int main(void)
int nr_iterations = 22;
int pkeys_supported = is_pkeys_supported();
+ srand((unsigned int)time(NULL));
+
setup_handlers();
printf("has pkeys: %d\n", pkeys_supported);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 676/700] selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (674 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 675/700] selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 677/700] selftests/vm/pkeys: refill shadow register after implicit kernel write Greg Kroah-Hartman
` (29 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Thomas Gleixner, Dave Hansen,
Aneesh Kumar K.V, Ram Pai, Sandipan Das, Florian Weimer,
Desnes A. Nunes do Rosario, Ingo Molnar, Thiago Jung Bauermann,
Michael Ellerman, Michal Hocko, Michal Suchanek, Shuah Khan,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Dave Hansen <dave.hansen@linux.intel.com>
[ Upstream commit bf68294a2ec39ed7fec6a5b45d52034e6983157a ]
The alloc_pkey() sefltest function wraps the sys_pkey_alloc() system call.
On success, it updates its "shadow" register value because
sys_pkey_alloc() updates the real register.
But, the success check is wrong. pkey_alloc() considers any non-zero
return code to indicate success where the pkey register will be modified.
This fails to take negative return codes into account.
Consider only a positive return value as a successful call.
Link: https://lkml.kernel.org/r/20210611164157.87AB4246@viggo.jf.intel.com
Fixes: 5f23f6d082a9 ("x86/pkeys: Add self-tests")
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/vm/protection_keys.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
index 9ee0ae5d3e06..356d62fca27f 100644
--- a/tools/testing/selftests/vm/protection_keys.c
+++ b/tools/testing/selftests/vm/protection_keys.c
@@ -510,7 +510,7 @@ int alloc_pkey(void)
" shadow: 0x%016llx\n",
__func__, __LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
- if (ret) {
+ if (ret > 0) {
/* clear both the bits: */
shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, ret,
~PKEY_MASK);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 677/700] selftests/vm/pkeys: refill shadow register after implicit kernel write
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (675 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 676/700] selftests/vm/pkeys: handle negative sys_pkey_alloc() return code Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 678/700] perf llvm: Return -ENOMEM when asprintf() fails Greg Kroah-Hartman
` (28 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Dave Hansen, Thomas Gleixner,
Aneesh Kumar K.V, Ram Pai, Sandipan Das, Florian Weimer,
Desnes A. Nunes do Rosario, Ingo Molnar, Thiago Jung Bauermann,
Michael Ellerman, Michal Hocko, Michal Suchanek, Shuah Khan,
Andrew Morton, Linus Torvalds, Sasha Levin
From: Dave Hansen <dave.hansen@linux.intel.com>
[ Upstream commit 6039ca254979694c5362dfebadd105e286c397bb ]
The pkey test code keeps a "shadow" of the pkey register around. This
ensures that any bugs which might write to the register can be caught more
quickly.
Generally, userspace has a good idea when the kernel is going to write to
the register. For instance, alloc_pkey() is passed a permission mask.
The caller of alloc_pkey() can update the shadow based on the return value
and the mask.
But, the kernel can also modify the pkey register in a more sneaky way.
For mprotect(PROT_EXEC) mappings, the kernel will allocate a pkey and
write the pkey register to create an execute-only mapping. The kernel
never tells userspace what key it uses for this.
This can cause the test to fail with messages like:
protection_keys_64.2: pkey-helpers.h:132: _read_pkey_reg: Assertion `pkey_reg == shadow_pkey_reg' failed.
because the shadow was not updated with the new kernel-set value.
Forcibly update the shadow value immediately after an mprotect().
Link: https://lkml.kernel.org/r/20210611164200.EF76AB73@viggo.jf.intel.com
Fixes: 6af17cf89e99 ("x86/pkeys/selftests: Add PROT_EXEC test")
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/vm/protection_keys.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
index 356d62fca27f..87eecd5ba577 100644
--- a/tools/testing/selftests/vm/protection_keys.c
+++ b/tools/testing/selftests/vm/protection_keys.c
@@ -1448,6 +1448,13 @@ void test_implicit_mprotect_exec_only_memory(int *ptr, u16 pkey)
ret = mprotect(p1, PAGE_SIZE, PROT_EXEC);
pkey_assert(!ret);
+ /*
+ * Reset the shadow, assuming that the above mprotect()
+ * correctly changed PKRU, but to an unknown value since
+ * the actual alllocated pkey is unknown.
+ */
+ shadow_pkey_reg = __read_pkey_reg();
+
dprintf2("pkey_reg: %016llx\n", read_pkey_reg());
/* Make sure this is an *instruction* fault */
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 678/700] perf llvm: Return -ENOMEM when asprintf() fails
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (676 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 677/700] selftests/vm/pkeys: refill shadow register after implicit kernel write Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 679/700] csky: fix syscache.c fallthrough warning Greg Kroah-Hartman
` (27 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Zhihao Cheng,
Alexei Starovoitov, Andrii Nakryiko, Daniel Borkmann,
Ingo Molnar, Jiri Olsa, Nathan Chancellor, Nick Desaulniers,
Peter Zijlstra, Yu Kuai, clang-built-linux,
Arnaldo Carvalho de Melo, Sasha Levin
From: Arnaldo Carvalho de Melo <acme@redhat.com>
[ Upstream commit c435c166dcf526ac827bc964d82cc0d5e7a1fd0b ]
Zhihao sent a patch but it made llvm__compile_bpf() return what
asprintf() returns on error, which is just -1, but since this function
returns -errno, fix it by returning -ENOMEM for this case instead.
Fixes: cb76371441d098 ("perf llvm: Allow passing options to llc ...")
Fixes: 5eab5a7ee032ac ("perf llvm: Display eBPF compiling command ...")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Zhihao Cheng <chengzhihao1@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yu Kuai <yukuai3@huawei.com>
Cc: clang-built-linux@googlegroups.com
Link: http://lore.kernel.org/lkml/20210609115945.2193194-1-chengzhihao1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/perf/util/llvm-utils.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index dbdffb6673fe..0bf6b4d4c90a 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -504,6 +504,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
goto errout;
}
+ err = -ENOMEM;
if (asprintf(&pipe_template, "%s -emit-llvm | %s -march=bpf %s -filetype=obj -o -",
template, llc_path, opts) < 0) {
pr_err("ERROR:\tnot enough memory to setup command line\n");
@@ -524,6 +525,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
pr_debug("llvm compiling command template: %s\n", template);
+ err = -ENOMEM;
if (asprintf(&command_echo, "echo -n \"%s\"", template) < 0)
goto errout;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 679/700] csky: fix syscache.c fallthrough warning
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (677 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 678/700] perf llvm: Return -ENOMEM when asprintf() fails Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 680/700] csky: syscache: Fixup duplicate cache flush Greg Kroah-Hartman
` (26 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Guo Ren, linux-csky,
Arnd Bergmann, Sasha Levin
From: Randy Dunlap <rdunlap@infradead.org>
[ Upstream commit 0679d29d3e2351a1c3049c26a63ce1959cad5447 ]
This case of the switch statement falls through to the following case.
This appears to be on purpose, so declare it as OK.
../arch/csky/mm/syscache.c: In function '__do_sys_cacheflush':
../arch/csky/mm/syscache.c:17:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
17 | flush_icache_mm_range(current->mm,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
18 | (unsigned long)addr,
| ~~~~~~~~~~~~~~~~~~~~
19 | (unsigned long)addr + bytes);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../arch/csky/mm/syscache.c:20:2: note: here
20 | case DCACHE:
| ^~~~
Fixes: 997153b9a75c ("csky: Add flush_icache_mm to defer flush icache all")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guo Ren <guoren@kernel.org>
Cc: linux-csky@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/csky/mm/syscache.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/csky/mm/syscache.c b/arch/csky/mm/syscache.c
index ffade2f9a4c8..4e51d63850c4 100644
--- a/arch/csky/mm/syscache.c
+++ b/arch/csky/mm/syscache.c
@@ -17,6 +17,7 @@ SYSCALL_DEFINE3(cacheflush,
flush_icache_mm_range(current->mm,
(unsigned long)addr,
(unsigned long)addr + bytes);
+ fallthrough;
case DCACHE:
dcache_wb_range((unsigned long)addr,
(unsigned long)addr + bytes);
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 680/700] csky: syscache: Fixup duplicate cache flush
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (678 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 679/700] csky: fix syscache.c fallthrough warning Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 681/700] exfat: handle wrong stream entry size in exfat_readdir() Greg Kroah-Hartman
` (25 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Randy Dunlap, Guo Ren, Arnd Bergmann,
Sasha Levin
From: Guo Ren <guoren@linux.alibaba.com>
[ Upstream commit 6ea42c84f33368eb3fe1ec1bff8d7cb1a5c7b07a ]
The current csky logic of sys_cacheflush is wrong, it'll cause
icache flush call dcache flush again. Now fixup it with a
conditional "break & fallthrough".
Fixes: 997153b9a75c ("csky: Add flush_icache_mm to defer flush icache all")
Fixes: 0679d29d3e23 ("csky: fix syscache.c fallthrough warning")
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Co-Developed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/csky/mm/syscache.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/csky/mm/syscache.c b/arch/csky/mm/syscache.c
index 4e51d63850c4..cd847ad62c7e 100644
--- a/arch/csky/mm/syscache.c
+++ b/arch/csky/mm/syscache.c
@@ -12,15 +12,17 @@ SYSCALL_DEFINE3(cacheflush,
int, cache)
{
switch (cache) {
- case ICACHE:
case BCACHE:
- flush_icache_mm_range(current->mm,
- (unsigned long)addr,
- (unsigned long)addr + bytes);
- fallthrough;
case DCACHE:
dcache_wb_range((unsigned long)addr,
(unsigned long)addr + bytes);
+ if (cache != BCACHE)
+ break;
+ fallthrough;
+ case ICACHE:
+ flush_icache_mm_range(current->mm,
+ (unsigned long)addr,
+ (unsigned long)addr + bytes);
break;
default:
return -EINVAL;
--
2.30.2
^ permalink raw reply related [flat|nested] 708+ messages in thread* [PATCH 5.12 681/700] exfat: handle wrong stream entry size in exfat_readdir()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (679 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 680/700] csky: syscache: Fixup duplicate cache flush Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 682/700] scsi: megaraid_sas: Send all non-RW I/Os for TYPE_ENCLOSURE device through firmware Greg Kroah-Hartman
` (24 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Florian Cramer, Sungjong Seo,
Chris Down, Namjae Jeon
From: Namjae Jeon <namjae.jeon@samsung.com>
commit 1e5654de0f51890f88abd409ebf4867782431e81 upstream.
The compatibility issue between linux exfat and exfat of some camera
company was reported from Florian. In their exfat, if the number of files
exceeds any limit, the DataLength in stream entry of the directory is
no longer updated. So some files created from camera does not show in
linux exfat. because linux exfat doesn't allow that cpos becomes larger
than DataLength of stream entry. This patch check DataLength in stream
entry only if the type is ALLOC_NO_FAT_CHAIN and add the check ensure
that dentry offset does not exceed max dentries size(256 MB) to avoid
the circular FAT chain issue.
Fixes: ca06197382bd ("exfat: add directory operations")
Cc: stable@vger.kernel.org # v5.9
Reported-by: Florian Cramer <flrncrmr@gmail.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Tested-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/exfat/dir.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/fs/exfat/dir.c
+++ b/fs/exfat/dir.c
@@ -62,7 +62,7 @@ static void exfat_get_uniname_from_ext_e
static int exfat_readdir(struct inode *inode, loff_t *cpos, struct exfat_dir_entry *dir_entry)
{
int i, dentries_per_clu, dentries_per_clu_bits = 0, num_ext;
- unsigned int type, clu_offset;
+ unsigned int type, clu_offset, max_dentries;
sector_t sector;
struct exfat_chain dir, clu;
struct exfat_uni_name uni_name;
@@ -85,6 +85,8 @@ static int exfat_readdir(struct inode *i
dentries_per_clu = sbi->dentries_per_clu;
dentries_per_clu_bits = ilog2(dentries_per_clu);
+ max_dentries = (unsigned int)min_t(u64, MAX_EXFAT_DENTRIES,
+ (u64)sbi->num_clusters << dentries_per_clu_bits);
clu_offset = dentry >> dentries_per_clu_bits;
exfat_chain_dup(&clu, &dir);
@@ -108,7 +110,7 @@ static int exfat_readdir(struct inode *i
}
}
- while (clu.dir != EXFAT_EOF_CLUSTER) {
+ while (clu.dir != EXFAT_EOF_CLUSTER && dentry < max_dentries) {
i = dentry & (dentries_per_clu - 1);
for ( ; i < dentries_per_clu; i++, dentry++) {
@@ -244,7 +246,7 @@ static int exfat_iterate(struct file *fi
if (err)
goto unlock;
get_new:
- if (cpos >= i_size_read(inode))
+ if (ei->flags == ALLOC_NO_FAT_CHAIN && cpos >= i_size_read(inode))
goto end_of_dir;
err = exfat_readdir(inode, &cpos, &de);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 682/700] scsi: megaraid_sas: Send all non-RW I/Os for TYPE_ENCLOSURE device through firmware
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (680 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 681/700] exfat: handle wrong stream entry size in exfat_readdir() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 683/700] scsi: fc: Correct RHBA attributes length Greg Kroah-Hartman
` (23 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Chandrakanth Patil, Sumit Saxena,
Martin K. Petersen
From: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
commit 79db830162b733f5f3ee80f0673eeeb0245fe38b upstream.
The driver issues all non-ReadWrite I/Os for TYPE_ENCLOSURE devices through
the fast path with invalid dev handle. Fast path in turn directs all the
I/Os to the firmware. As firmware stopped handling those I/Os from SAS3.5
generation of controllers (Ventura generation and onwards) this will lead
to I/O failures.
Switch the driver to issue all the non-ReadWrite I/Os for TYPE_ENCLOSURE
devices directly to firmware for SAS3.5 generation of controllers and
later.
Link: https://lore.kernel.org/r/20210528131307.25683-2-chandrakanth.patil@broadcom.com
Cc: <stable@vger.kernel.org> # v5.11+
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/megaraid/megaraid_sas_fusion.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3167,6 +3167,8 @@ megasas_build_io_fusion(struct megasas_i
{
int sge_count;
u8 cmd_type;
+ u16 pd_index = 0;
+ u8 drive_type = 0;
struct MPI2_RAID_SCSI_IO_REQUEST *io_request = cmd->io_request;
struct MR_PRIV_DEVICE *mr_device_priv_data;
mr_device_priv_data = scp->device->hostdata;
@@ -3201,8 +3203,12 @@ megasas_build_io_fusion(struct megasas_i
megasas_build_syspd_fusion(instance, scp, cmd, true);
break;
case NON_READ_WRITE_SYSPDIO:
- if (instance->secure_jbod_support ||
- mr_device_priv_data->is_tm_capable)
+ pd_index = MEGASAS_PD_INDEX(scp);
+ drive_type = instance->pd_list[pd_index].driveType;
+ if ((instance->secure_jbod_support ||
+ mr_device_priv_data->is_tm_capable) ||
+ (instance->adapter_type >= VENTURA_SERIES &&
+ drive_type == TYPE_ENCLOSURE))
megasas_build_syspd_fusion(instance, scp, cmd, false);
else
megasas_build_syspd_fusion(instance, scp, cmd, true);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 683/700] scsi: fc: Correct RHBA attributes length
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (681 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 682/700] scsi: megaraid_sas: Send all non-RW I/Os for TYPE_ENCLOSURE device through firmware Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 684/700] scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd() Greg Kroah-Hartman
` (22 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Himanshu Madhani, Javed Hasan,
Martin K. Petersen
From: Javed Hasan <jhasan@marvell.com>
commit 40445fd2c9fa427297acdfcc2c573ff10493f209 upstream.
As per the FC-GS-5 specification, attribute lengths of node_name and
manufacturer should in range of "4 to 64 Bytes" only.
Link: https://lore.kernel.org/r/20210603101404.7841-2-jhasan@marvell.com
Fixes: e721eb0616f6 ("scsi: scsi_transport_fc: Match HBA Attribute Length with HBAAPI V2.0 definitions")
CC: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/scsi/fc/fc_ms.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/scsi/fc/fc_ms.h
+++ b/include/scsi/fc/fc_ms.h
@@ -63,8 +63,8 @@ enum fc_fdmi_hba_attr_type {
* HBA Attribute Length
*/
#define FC_FDMI_HBA_ATTR_NODENAME_LEN 8
-#define FC_FDMI_HBA_ATTR_MANUFACTURER_LEN 80
-#define FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN 80
+#define FC_FDMI_HBA_ATTR_MANUFACTURER_LEN 64
+#define FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN 64
#define FC_FDMI_HBA_ATTR_MODEL_LEN 256
#define FC_FDMI_HBA_ATTR_MODELDESCR_LEN 256
#define FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN 256
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 684/700] scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (682 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 683/700] scsi: fc: Correct RHBA attributes length Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 685/700] scsi: lpfc: Fix unreleased RPIs when NPIV ports are created Greg Kroah-Hartman
` (21 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Varun Prakash, Martin K. Petersen
From: Varun Prakash <varun@chelsio.com>
commit 6ecdafaec79d4b3388a5b017245f23a0ff9d852d upstream.
Instead of calling dma_unmap_sg() after completing WRITE I/O, call
dma_unmap_sg() before calling target_execute_cmd() to sync the DMA buffer.
Link: https://lore.kernel.org/r/1618403949-3443-1-git-send-email-varun@chelsio.com
Cc: <stable@vger.kernel.org> # 5.4+
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/target/iscsi/cxgbit/cxgbit_ddp.c | 19 ++++++++++---------
drivers/target/iscsi/cxgbit/cxgbit_target.c | 21 ++++++++++++++++++---
2 files changed, 28 insertions(+), 12 deletions(-)
--- a/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_ddp.c
@@ -265,12 +265,13 @@ void cxgbit_unmap_cmd(struct iscsi_conn
struct cxgbit_cmd *ccmd = iscsit_priv_cmd(cmd);
if (ccmd->release) {
- struct cxgbi_task_tag_info *ttinfo = &ccmd->ttinfo;
-
- if (ttinfo->sgl) {
+ if (cmd->se_cmd.se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC) {
+ put_page(sg_page(&ccmd->sg));
+ } else {
struct cxgbit_sock *csk = conn->context;
struct cxgbit_device *cdev = csk->com.cdev;
struct cxgbi_ppm *ppm = cdev2ppm(cdev);
+ struct cxgbi_task_tag_info *ttinfo = &ccmd->ttinfo;
/* Abort the TCP conn if DDP is not complete to
* avoid any possibility of DDP after freeing
@@ -280,14 +281,14 @@ void cxgbit_unmap_cmd(struct iscsi_conn
cmd->se_cmd.data_length))
cxgbit_abort_conn(csk);
+ if (unlikely(ttinfo->sgl)) {
+ dma_unmap_sg(&ppm->pdev->dev, ttinfo->sgl,
+ ttinfo->nents, DMA_FROM_DEVICE);
+ ttinfo->nents = 0;
+ ttinfo->sgl = NULL;
+ }
cxgbi_ppm_ppod_release(ppm, ttinfo->idx);
-
- dma_unmap_sg(&ppm->pdev->dev, ttinfo->sgl,
- ttinfo->nents, DMA_FROM_DEVICE);
- } else {
- put_page(sg_page(&ccmd->sg));
}
-
ccmd->release = false;
}
}
--- a/drivers/target/iscsi/cxgbit/cxgbit_target.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_target.c
@@ -997,17 +997,18 @@ static int cxgbit_handle_iscsi_dataout(s
struct scatterlist *sg_start;
struct iscsi_conn *conn = csk->conn;
struct iscsi_cmd *cmd = NULL;
+ struct cxgbit_cmd *ccmd;
+ struct cxgbi_task_tag_info *ttinfo;
struct cxgbit_lro_pdu_cb *pdu_cb = cxgbit_rx_pdu_cb(csk->skb);
struct iscsi_data *hdr = (struct iscsi_data *)pdu_cb->hdr;
u32 data_offset = be32_to_cpu(hdr->offset);
- u32 data_len = pdu_cb->dlen;
+ u32 data_len = ntoh24(hdr->dlength);
int rc, sg_nents, sg_off;
bool dcrc_err = false;
if (pdu_cb->flags & PDUCBF_RX_DDP_CMP) {
u32 offset = be32_to_cpu(hdr->offset);
u32 ddp_data_len;
- u32 payload_length = ntoh24(hdr->dlength);
bool success = false;
cmd = iscsit_find_cmd_from_itt_or_dump(conn, hdr->itt, 0);
@@ -1022,7 +1023,7 @@ static int cxgbit_handle_iscsi_dataout(s
cmd->data_sn = be32_to_cpu(hdr->datasn);
rc = __iscsit_check_dataout_hdr(conn, (unsigned char *)hdr,
- cmd, payload_length, &success);
+ cmd, data_len, &success);
if (rc < 0)
return rc;
else if (!success)
@@ -1060,6 +1061,20 @@ static int cxgbit_handle_iscsi_dataout(s
cxgbit_skb_copy_to_sg(csk->skb, sg_start, sg_nents, skip);
}
+ ccmd = iscsit_priv_cmd(cmd);
+ ttinfo = &ccmd->ttinfo;
+
+ if (ccmd->release && ttinfo->sgl &&
+ (cmd->se_cmd.data_length == (cmd->write_data_done + data_len))) {
+ struct cxgbit_device *cdev = csk->com.cdev;
+ struct cxgbi_ppm *ppm = cdev2ppm(cdev);
+
+ dma_unmap_sg(&ppm->pdev->dev, ttinfo->sgl, ttinfo->nents,
+ DMA_FROM_DEVICE);
+ ttinfo->nents = 0;
+ ttinfo->sgl = NULL;
+ }
+
check_payload:
rc = iscsit_check_dataout_payload(cmd, hdr, dcrc_err);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 685/700] scsi: lpfc: Fix unreleased RPIs when NPIV ports are created
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (683 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 684/700] scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 686/700] scsi: lpfc: Fix Node recovery when driver is handling simultaneous PLOGIs Greg Kroah-Hartman
` (20 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Justin Tee, James Smart, Martin K. Petersen
From: James Smart <jsmart2021@gmail.com>
commit 01131e7aae5d30e23e3cdd1eebe51bbc5489ae8f upstream.
While testing NPIV and watching logins and used RPI levels, it was seen the
used RPI count was much higher than the number of remote ports discovered.
Code inspection showed that remote port removals on any NPIV instance are
releasing the RPI, but not performing an UNREG_RPI with the adapter thus
the reference counting never fully drops and the RPI is never fully
released. This was happening on NPIV nodes due to a log of fabric ELS's to
fabric addresses. This lack of UNREG_RPI was introduced by a prior node
rework patch that performed the UNREG_RPI as part of node cleanup.
To resolve the issue, do the following:
- Restore the RPI release code, but move the location to so that it is in
line with the new node cleanup design.
- NPIV ports now release the RPI and drop the node when the caller sets
the NLP_RELEASE_RPI flag.
- Set the NLP_RELEASE_RPI flag in node cleanup which will trigger a
release of RPI to free pool.
- Ensure there's an UNREG_RPI at LOGO completion so that RPI release is
completed.
- Stop offline_prep from skipping nodes that are UNUSED. The RPI may
not have been released.
- Stop the default RPI handling in lpfc_cmpl_els_rsp() for SLI4.
- Fixed up debugfs RPI displays for better debugging.
Fixes: a70e63eee1c1 ("scsi: lpfc: Fix NPIV Fabric Node reference counting")
Link: https://lore.kernel.org/r/20210514195559.119853-2-jsmart2021@gmail.com
Cc: <stable@vger.kernel.org> # v5.11+
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/lpfc/lpfc_debugfs.c | 7 ---
drivers/scsi/lpfc/lpfc_els.c | 79 +++++++++++++++++++++++++++++--------
drivers/scsi/lpfc/lpfc_hbadisc.c | 27 +++++++++++-
drivers/scsi/lpfc/lpfc_init.c | 7 ---
drivers/scsi/lpfc/lpfc_nportdisc.c | 25 +++++++----
drivers/scsi/lpfc/lpfc_sli.c | 10 +++-
6 files changed, 115 insertions(+), 40 deletions(-)
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -868,11 +868,8 @@ lpfc_debugfs_nodelist_data(struct lpfc_v
len += scnprintf(buf+len, size-len,
"WWNN x%llx ",
wwn_to_u64(ndlp->nlp_nodename.u.wwn));
- if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
- len += scnprintf(buf+len, size-len, "RPI:%03d ",
- ndlp->nlp_rpi);
- else
- len += scnprintf(buf+len, size-len, "RPI:none ");
+ len += scnprintf(buf+len, size-len, "RPI:x%04x ",
+ ndlp->nlp_rpi);
len += scnprintf(buf+len, size-len, "flag:x%08x ",
ndlp->nlp_flag);
if (!ndlp->nlp_type)
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -2856,6 +2856,11 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba
* log into the remote port.
*/
if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
+ spin_lock_irq(&ndlp->lock);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ ndlp->nlp_flag |= NLP_RELEASE_RPI;
+ ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+ spin_unlock_irq(&ndlp->lock);
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_DEVICE_RM);
lpfc_els_free_iocb(phba, cmdiocb);
@@ -4363,6 +4368,7 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
struct lpfc_vport *vport = cmdiocb->vport;
IOCB_t *irsp;
+ u32 xpt_flags = 0, did_mask = 0;
irsp = &rspiocb->iocb;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
@@ -4378,9 +4384,20 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *
if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
/* NPort Recovery mode or node is just allocated */
if (!lpfc_nlp_not_used(ndlp)) {
- /* If the ndlp is being used by another discovery
- * thread, just unregister the RPI.
+ /* A LOGO is completing and the node is in NPR state.
+ * If this a fabric node that cleared its transport
+ * registration, release the rpi.
*/
+ xpt_flags = SCSI_XPT_REGD | NVME_XPT_REGD;
+ did_mask = ndlp->nlp_DID & Fabric_DID_MASK;
+ if (did_mask == Fabric_DID_MASK &&
+ !(ndlp->fc4_xpt_flags & xpt_flags)) {
+ spin_lock_irq(&ndlp->lock);
+ ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ ndlp->nlp_flag |= NLP_RELEASE_RPI;
+ spin_unlock_irq(&ndlp->lock);
+ }
lpfc_unreg_rpi(vport, ndlp);
} else {
/* Indicate the node has already released, should
@@ -4416,28 +4433,37 @@ lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *
{
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
+ u32 mbx_flag = pmb->mbox_flag;
+ u32 mbx_cmd = pmb->u.mb.mbxCommand;
pmb->ctx_buf = NULL;
pmb->ctx_ndlp = NULL;
- lpfc_mbuf_free(phba, mp->virt, mp->phys);
- kfree(mp);
- mempool_free(pmb, phba->mbox_mem_pool);
if (ndlp) {
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
- "0006 rpi x%x DID:%x flg:%x %d x%px\n",
+ "0006 rpi x%x DID:%x flg:%x %d x%px "
+ "mbx_cmd x%x mbx_flag x%x x%px\n",
ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
- kref_read(&ndlp->kref),
- ndlp);
- /* This is the end of the default RPI cleanup logic for
- * this ndlp and it could get released. Clear the nlp_flags to
- * prevent any further processing.
+ kref_read(&ndlp->kref), ndlp, mbx_cmd,
+ mbx_flag, pmb);
+
+ /* This ends the default/temporary RPI cleanup logic for this
+ * ndlp and the node and rpi needs to be released. Free the rpi
+ * first on an UNREG_LOGIN and then release the final
+ * references.
*/
+ spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
+ if (mbx_cmd == MBX_UNREG_LOGIN)
+ ndlp->nlp_flag &= ~NLP_UNREG_INP;
+ spin_unlock_irq(&ndlp->lock);
lpfc_nlp_put(ndlp);
- lpfc_nlp_not_used(ndlp);
+ lpfc_drop_node(ndlp->vport, ndlp);
}
+ lpfc_mbuf_free(phba, mp->virt, mp->phys);
+ kfree(mp);
+ mempool_free(pmb, phba->mbox_mem_pool);
return;
}
@@ -4495,11 +4521,11 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba,
/* ELS response tag <ulpIoTag> completes */
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0110 ELS response tag x%x completes "
- "Data: x%x x%x x%x x%x x%x x%x x%x\n",
+ "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%px\n",
cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
- ndlp->nlp_rpi);
+ ndlp->nlp_rpi, kref_read(&ndlp->kref), mbox);
if (mbox) {
if ((rspiocb->iocb.ulpStatus == 0) &&
(ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
@@ -4579,6 +4605,16 @@ out:
spin_unlock_irq(&ndlp->lock);
}
+ /* An SLI4 NPIV instance wants to drop the node at this point under
+ * these conditions and release the RPI.
+ */
+ if (phba->sli_rev == LPFC_SLI_REV4 &&
+ (vport && vport->port_type == LPFC_NPIV_PORT) &&
+ ndlp->nlp_flag & NLP_RELEASE_RPI) {
+ lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
+ lpfc_drop_node(vport, ndlp);
+ }
+
/* Release the originating I/O reference. */
lpfc_els_free_iocb(phba, cmdiocb);
lpfc_nlp_put(ndlp);
@@ -4762,10 +4798,10 @@ lpfc_els_rsp_acc(struct lpfc_vport *vpor
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0128 Xmit ELS ACC response Status: x%x, IoTag: x%x, "
"XRI: x%x, DID: x%x, nlp_flag: x%x nlp_state: x%x "
- "RPI: x%x, fc_flag x%x\n",
+ "RPI: x%x, fc_flag x%x refcnt %d\n",
rc, elsiocb->iotag, elsiocb->sli4_xritag,
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
- ndlp->nlp_rpi, vport->fc_flag);
+ ndlp->nlp_rpi, vport->fc_flag, kref_read(&ndlp->kref));
return 0;
io_err:
@@ -5978,6 +6014,17 @@ lpfc_els_rdp_cmpl(struct lpfc_hba *phba,
goto free_rdp_context;
}
+ /* The NPIV instance is rejecting this unsolicited ELS. Make sure the
+ * node's assigned RPI needs to be released as this node will get
+ * freed.
+ */
+ if (phba->sli_rev == LPFC_SLI_REV4 &&
+ vport->port_type == LPFC_NPIV_PORT) {
+ spin_lock_irq(&ndlp->lock);
+ ndlp->nlp_flag |= NLP_RELEASE_RPI;
+ spin_unlock_irq(&ndlp->lock);
+ }
+
rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
if (rc == IOCB_ERROR) {
lpfc_nlp_put(ndlp);
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -4789,12 +4789,17 @@ lpfc_nlp_logo_unreg(struct lpfc_hba *phb
ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
} else {
+ /* NLP_RELEASE_RPI is only set for SLI4 ports. */
if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
+ spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
+ spin_unlock_irq(&ndlp->lock);
}
+ spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_UNREG_INP;
+ spin_unlock_irq(&ndlp->lock);
}
}
@@ -5129,8 +5134,10 @@ lpfc_cleanup_node(struct lpfc_vport *vpo
list_del_init(&ndlp->dev_loss_evt.evt_listp);
list_del_init(&ndlp->recovery_evt.evt_listp);
lpfc_cleanup_vports_rrqs(vport, ndlp);
+
if (phba->sli_rev == LPFC_SLI_REV4)
ndlp->nlp_flag |= NLP_RELEASE_RPI;
+
return 0;
}
@@ -6174,8 +6181,23 @@ lpfc_nlp_release(struct kref *kref)
lpfc_cancel_retry_delay_tmo(vport, ndlp);
lpfc_cleanup_node(vport, ndlp);
- /* Clear Node key fields to give other threads notice
- * that this node memory is not valid anymore.
+ /* Not all ELS transactions have registered the RPI with the port.
+ * In these cases the rpi usage is temporary and the node is
+ * released when the WQE is completed. Catch this case to free the
+ * RPI to the pool. Because this node is in the release path, a lock
+ * is unnecessary. All references are gone and the node has been
+ * dequeued.
+ */
+ if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
+ if (ndlp->nlp_rpi != LPFC_RPI_ALLOC_ERROR &&
+ !(ndlp->nlp_flag & (NLP_RPI_REGISTERED | NLP_UNREG_INP))) {
+ lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
+ ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
+ }
+ }
+
+ /* The node is not freed back to memory, it is released to a pool so
+ * the node fields need to be cleaned up.
*/
ndlp->vport = NULL;
ndlp->nlp_state = NLP_STE_FREED_NODE;
@@ -6255,6 +6277,7 @@ lpfc_nlp_not_used(struct lpfc_nodelist *
"node not used: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
kref_read(&ndlp->kref));
+
if (kref_read(&ndlp->kref) == 1)
if (lpfc_nlp_put(ndlp))
return 1;
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -3532,13 +3532,6 @@ lpfc_offline_prep(struct lpfc_hba *phba,
list_for_each_entry_safe(ndlp, next_ndlp,
&vports[i]->fc_nodes,
nlp_listp) {
- if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
- /* Driver must assume RPI is invalid for
- * any unused or inactive node.
- */
- ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
- continue;
- }
spin_lock_irq(&ndlp->lock);
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -557,15 +557,24 @@ lpfc_rcv_plogi(struct lpfc_vport *vport,
/* no deferred ACC */
kfree(save_iocb);
- /* In order to preserve RPIs, we want to cleanup
- * the default RPI the firmware created to rcv
- * this ELS request. The only way to do this is
- * to register, then unregister the RPI.
+ /* This is an NPIV SLI4 instance that does not need to register
+ * a default RPI.
*/
- spin_lock_irq(&ndlp->lock);
- ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN |
- NLP_RCV_PLOGI);
- spin_unlock_irq(&ndlp->lock);
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ mempool_free(login_mbox, phba->mbox_mem_pool);
+ login_mbox = NULL;
+ } else {
+ /* In order to preserve RPIs, we want to cleanup
+ * the default RPI the firmware created to rcv
+ * this ELS request. The only way to do this is
+ * to register, then unregister the RPI.
+ */
+ spin_lock_irq(&ndlp->lock);
+ ndlp->nlp_flag |= (NLP_RM_DFLT_RPI | NLP_ACC_REGLOGIN |
+ NLP_RCV_PLOGI);
+ spin_unlock_irq(&ndlp->lock);
+ }
+
stat.un.b.lsRjtRsnCode = LSRJT_INVALID_CMD;
stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
rc = lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -13628,9 +13628,15 @@ lpfc_sli4_sp_handle_mbox_event(struct lp
if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
- /* Reg_LOGIN of dflt RPI was successful. Now lets get
- * RID of the PPI using the same mbox buffer.
+
+ /* Reg_LOGIN of dflt RPI was successful. Mark the
+ * node as having an UNREG_LOGIN in progress to stop
+ * an unsolicited PLOGI from the same NPortId from
+ * starting another mailbox transaction.
*/
+ spin_lock_irqsave(&ndlp->lock, iflags);
+ ndlp->nlp_flag |= NLP_UNREG_INP;
+ spin_unlock_irqrestore(&ndlp->lock, iflags);
lpfc_unreg_login(phba, vport->vpi,
pmbox->un.varWords[0], pmb);
pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 686/700] scsi: lpfc: Fix Node recovery when driver is handling simultaneous PLOGIs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (684 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 685/700] scsi: lpfc: Fix unreleased RPIs when NPIV ports are created Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 687/700] scsi: libfc: Correct the condition check and invalid argument passed Greg Kroah-Hartman
` (19 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Justin Tee, James Smart, Martin K. Petersen
From: James Smart <jsmart2021@gmail.com>
commit 4012baeab6ca22b7f7beb121b6d0da0a62942fdd upstream.
When lpfc is handling a solicited and unsolicited PLOGI with another
initiator, the remote initiator is never recovered. The node for the
initiator is erroneouosly removed and all resources released.
In lpfc_cmpl_els_plogi(), when lpfc_els_retry() returns a failure code, the
driver is calling the state machine with a device remove event because the
remote port is not currently registered with the SCSI or NVMe
transports. The issue is that on a PLOGI "collision" the driver correctly
aborts the solicited PLOGI and allows the unsolicited PLOGI to complete the
process, but this process is interrupted with a device_rm event.
Introduce logic in the PLOGI completion to capture the PLOGI collision
event and jump out of the routine. This will avoid removal of the node.
If there is no collision, the normal node removal will occur.
Fixes: 52edb2caf675 ("scsi: lpfc: Remove ndlp when a PLOGI/ADISC/PRLI/REG_RPI ultimately fails")
Cc: <stable@vger.kernel.org> # v5.11+
Link: https://lore.kernel.org/r/20210514195559.119853-6-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/lpfc/lpfc_els.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1985,9 +1985,20 @@ lpfc_cmpl_els_plogi(struct lpfc_hba *phb
lpfc_disc_state_machine(vport, ndlp, cmdiocb,
NLP_EVT_CMPL_PLOGI);
- /* As long as this node is not registered with the scsi or nvme
- * transport, it is no longer an active node. Otherwise
- * devloss handles the final cleanup.
+ /* If a PLOGI collision occurred, the node needs to continue
+ * with the reglogin process.
+ */
+ spin_lock_irq(&ndlp->lock);
+ if ((ndlp->nlp_flag & (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI)) &&
+ ndlp->nlp_state == NLP_STE_REG_LOGIN_ISSUE) {
+ spin_unlock_irq(&ndlp->lock);
+ goto out;
+ }
+ spin_unlock_irq(&ndlp->lock);
+
+ /* No PLOGI collision and the node is not registered with the
+ * scsi or nvme transport. It is no longer an active node. Just
+ * start the device remove process.
*/
if (!(ndlp->fc4_xpt_flags & (SCSI_XPT_REGD | NVME_XPT_REGD))) {
spin_lock_irq(&ndlp->lock);
@@ -4612,6 +4623,10 @@ out:
(vport && vport->port_type == LPFC_NPIV_PORT) &&
ndlp->nlp_flag & NLP_RELEASE_RPI) {
lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
+ spin_lock_irq(&ndlp->lock);
+ ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
+ ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
+ spin_unlock_irq(&ndlp->lock);
lpfc_drop_node(vport, ndlp);
}
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 687/700] scsi: libfc: Correct the condition check and invalid argument passed
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (685 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 686/700] scsi: lpfc: Fix Node recovery when driver is handling simultaneous PLOGIs Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 688/700] mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion Greg Kroah-Hartman
` (18 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Himanshu Madhani, Javed Hasan,
Martin K. Petersen
From: Javed Hasan <jhasan@marvell.com>
commit 8f70328c068f9f5c5db82848724cb276f657b9cd upstream.
Incorrect condition check was leading to data corruption.
Link: https://lore.kernel.org/r/20210603101404.7841-3-jhasan@marvell.com
Fixes: 8fd9efca86d0 ("scsi: libfc: Work around -Warray-bounds warning")
CC: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/libfc/fc_encode.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/scsi/libfc/fc_encode.h
+++ b/drivers/scsi/libfc/fc_encode.h
@@ -166,9 +166,11 @@ static inline int fc_ct_ns_fill(struct f
static inline void fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry *entry,
const char *in, size_t len)
{
- int copied = strscpy(entry->value, in, len);
- if (copied > 0)
- memset(entry->value, copied, len - copied);
+ int copied;
+
+ copied = strscpy((char *)&entry->value, in, len);
+ if (copied > 0 && (copied + 1) < len)
+ memset((entry->value + copied + 1), 0, len - copied - 1);
}
/**
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 688/700] mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (686 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 687/700] scsi: libfc: Correct the condition check and invalid argument passed Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 689/700] fscrypt: dont ignore minor_hash when hash is 0 Greg Kroah-Hartman
` (17 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Sibi Sankar, Bjorn Andersson,
Manivannan Sadhasivam, Jassi Brar
From: Sibi Sankar <sibis@codeaurora.org>
commit d6fbfdbc12745ce24bcd348dbf7e652353b3e59c upstream.
Fix IPCC (Inter-Processor Communication Controller) channel exhaustion by
setting the channel private data to NULL on mbox shutdown.
Err Logs:
remoteproc: MBA booted without debug policy, loading mpss
remoteproc: glink-edge: failed to acquire IPC channel
remoteproc: failed to probe subdevices for remoteproc: -16
Fixes: fa74a0257f45 ("mailbox: Add support for Qualcomm IPCC")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Cc: stable@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mailbox/qcom-ipcc.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/mailbox/qcom-ipcc.c
+++ b/drivers/mailbox/qcom-ipcc.c
@@ -155,6 +155,11 @@ static int qcom_ipcc_mbox_send_data(stru
return 0;
}
+static void qcom_ipcc_mbox_shutdown(struct mbox_chan *chan)
+{
+ chan->con_priv = NULL;
+}
+
static struct mbox_chan *qcom_ipcc_mbox_xlate(struct mbox_controller *mbox,
const struct of_phandle_args *ph)
{
@@ -184,6 +189,7 @@ static struct mbox_chan *qcom_ipcc_mbox_
static const struct mbox_chan_ops ipcc_mbox_chan_ops = {
.send_data = qcom_ipcc_mbox_send_data,
+ .shutdown = qcom_ipcc_mbox_shutdown,
};
static int qcom_ipcc_setup_mbox(struct qcom_ipcc *ipcc)
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 689/700] fscrypt: dont ignore minor_hash when hash is 0
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (687 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 688/700] mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 690/700] fscrypt: fix derivation of SipHash keys on big endian CPUs Greg Kroah-Hartman
` (16 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Eric Biggers
From: Eric Biggers <ebiggers@google.com>
commit 77f30bfcfcf484da7208affd6a9e63406420bf91 upstream.
When initializing a no-key name, fscrypt_fname_disk_to_usr() sets the
minor_hash to 0 if the (major) hash is 0.
This doesn't make sense because 0 is a valid hash code, so we shouldn't
ignore the filesystem-provided minor_hash in that case. Fix this by
removing the special case for 'hash == 0'.
This is an old bug that appears to have originated when the encryption
code in ext4 and f2fs was moved into fs/crypto/. The original ext4 and
f2fs code passed the hash by pointer instead of by value. So
'if (hash)' actually made sense then, as it was checking whether a
pointer was NULL. But now the hashes are passed by value, and
filesystems just pass 0 for any hashes they don't have. There is no
need to handle this any differently from the hashes actually being 0.
It is difficult to reproduce this bug, as it only made a difference in
the case where a filename's 32-bit major hash happened to be 0.
However, it probably had the largest chance of causing problems on
ubifs, since ubifs uses minor_hash to do lookups of no-key names, in
addition to using it as a readdir cookie. ext4 only uses minor_hash as
a readdir cookie, and f2fs doesn't use minor_hash at all.
Fixes: 0b81d0779072 ("fs crypto: move per-file encryption from f2fs tree to fs/crypto")
Cc: <stable@vger.kernel.org> # v4.6+
Link: https://lore.kernel.org/r/20210527235236.2376556-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/crypto/fname.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -344,13 +344,9 @@ int fscrypt_fname_disk_to_usr(const stru
offsetof(struct fscrypt_nokey_name, sha256));
BUILD_BUG_ON(BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX) > NAME_MAX);
- if (hash) {
- nokey_name.dirhash[0] = hash;
- nokey_name.dirhash[1] = minor_hash;
- } else {
- nokey_name.dirhash[0] = 0;
- nokey_name.dirhash[1] = 0;
- }
+ nokey_name.dirhash[0] = hash;
+ nokey_name.dirhash[1] = minor_hash;
+
if (iname->len <= sizeof(nokey_name.bytes)) {
memcpy(nokey_name.bytes, iname->name, iname->len);
size = offsetof(struct fscrypt_nokey_name, bytes[iname->len]);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 690/700] fscrypt: fix derivation of SipHash keys on big endian CPUs
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (688 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 689/700] fscrypt: dont ignore minor_hash when hash is 0 Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 691/700] tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status() Greg Kroah-Hartman
` (15 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Eric Biggers
From: Eric Biggers <ebiggers@google.com>
commit 2fc2b430f559fdf32d5d1dd5ceaa40e12fb77bdf upstream.
Typically, the cryptographic APIs that fscrypt uses take keys as byte
arrays, which avoids endianness issues. However, siphash_key_t is an
exception. It is defined as 'u64 key[2];', i.e. the 128-bit key is
expected to be given directly as two 64-bit words in CPU endianness.
fscrypt_derive_dirhash_key() and fscrypt_setup_iv_ino_lblk_32_key()
forgot to take this into account. Therefore, the SipHash keys used to
index encrypted+casefolded directories differ on big endian vs. little
endian platforms, as do the SipHash keys used to hash inode numbers for
IV_INO_LBLK_32-encrypted directories. This makes such directories
non-portable between these platforms.
Fix this by always using the little endian order. This is a breaking
change for big endian platforms, but this should be fine in practice
since these features (encrypt+casefold support, and the IV_INO_LBLK_32
flag) aren't known to actually be used on any big endian platforms yet.
Fixes: aa408f835d02 ("fscrypt: derive dirhash key for casefolded directories")
Fixes: e3b1078bedd3 ("fscrypt: add support for IV_INO_LBLK_32 policies")
Cc: <stable@vger.kernel.org> # v5.6+
Link: https://lore.kernel.org/r/20210605075033.54424-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/crypto/keysetup.c | 40 ++++++++++++++++++++++++++++++++--------
1 file changed, 32 insertions(+), 8 deletions(-)
--- a/fs/crypto/keysetup.c
+++ b/fs/crypto/keysetup.c
@@ -210,15 +210,40 @@ out_unlock:
return err;
}
+/*
+ * Derive a SipHash key from the given fscrypt master key and the given
+ * application-specific information string.
+ *
+ * Note that the KDF produces a byte array, but the SipHash APIs expect the key
+ * as a pair of 64-bit words. Therefore, on big endian CPUs we have to do an
+ * endianness swap in order to get the same results as on little endian CPUs.
+ */
+static int fscrypt_derive_siphash_key(const struct fscrypt_master_key *mk,
+ u8 context, const u8 *info,
+ unsigned int infolen, siphash_key_t *key)
+{
+ int err;
+
+ err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf, context, info, infolen,
+ (u8 *)key, sizeof(*key));
+ if (err)
+ return err;
+
+ BUILD_BUG_ON(sizeof(*key) != 16);
+ BUILD_BUG_ON(ARRAY_SIZE(key->key) != 2);
+ le64_to_cpus(&key->key[0]);
+ le64_to_cpus(&key->key[1]);
+ return 0;
+}
+
int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
const struct fscrypt_master_key *mk)
{
int err;
- err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf, HKDF_CONTEXT_DIRHASH_KEY,
- ci->ci_nonce, FSCRYPT_FILE_NONCE_SIZE,
- (u8 *)&ci->ci_dirhash_key,
- sizeof(ci->ci_dirhash_key));
+ err = fscrypt_derive_siphash_key(mk, HKDF_CONTEXT_DIRHASH_KEY,
+ ci->ci_nonce, FSCRYPT_FILE_NONCE_SIZE,
+ &ci->ci_dirhash_key);
if (err)
return err;
ci->ci_dirhash_key_initialized = true;
@@ -253,10 +278,9 @@ static int fscrypt_setup_iv_ino_lblk_32_
if (mk->mk_ino_hash_key_initialized)
goto unlock;
- err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,
- HKDF_CONTEXT_INODE_HASH_KEY, NULL, 0,
- (u8 *)&mk->mk_ino_hash_key,
- sizeof(mk->mk_ino_hash_key));
+ err = fscrypt_derive_siphash_key(mk,
+ HKDF_CONTEXT_INODE_HASH_KEY,
+ NULL, 0, &mk->mk_ino_hash_key);
if (err)
goto unlock;
/* pairs with smp_load_acquire() above */
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 691/700] tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (689 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 690/700] fscrypt: fix derivation of SipHash keys on big endian CPUs Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 692/700] erofs: fix error return code in erofs_read_superblock() Greg Kroah-Hartman
` (14 subsequent siblings)
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Jarkko Sakkinen
From: Jarkko Sakkinen <jarkko@kernel.org>
commit 0178f9d0f60ba07e09bab57381a3ef18e2c1fd7f upstream.
Do not tear down the system when getting invalid status from a TPM chip.
This can happen when panic-on-warn is used.
Instead, introduce TPM_TIS_INVALID_STATUS bitflag and use it to trigger
once the error reporting per chip. In addition, print out the value of
TPM_STS for improved forensics.
Link: https://lore.kernel.org/keyrings/YKzlTR1AzUigShtZ@kroah.com/
Fixes: 55707d531af6 ("tpm_tis: Add a check for invalid status")
Cc: stable@vger.kernel.org
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/tpm/tpm_tis_core.c | 25 ++++++++++++++++++-------
drivers/char/tpm/tpm_tis_core.h | 3 ++-
2 files changed, 20 insertions(+), 8 deletions(-)
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -196,13 +196,24 @@ static u8 tpm_tis_status(struct tpm_chip
return 0;
if (unlikely((status & TPM_STS_READ_ZERO) != 0)) {
- /*
- * If this trips, the chances are the read is
- * returning 0xff because the locality hasn't been
- * acquired. Usually because tpm_try_get_ops() hasn't
- * been called before doing a TPM operation.
- */
- WARN_ONCE(1, "TPM returned invalid status\n");
+ if (!test_and_set_bit(TPM_TIS_INVALID_STATUS, &priv->flags)) {
+ /*
+ * If this trips, the chances are the read is
+ * returning 0xff because the locality hasn't been
+ * acquired. Usually because tpm_try_get_ops() hasn't
+ * been called before doing a TPM operation.
+ */
+ dev_err(&chip->dev, "invalid TPM_STS.x 0x%02x, dumping stack for forensics\n",
+ status);
+
+ /*
+ * Dump stack for forensics, as invalid TPM_STS.x could be
+ * potentially triggered by impaired tpm_try_get_ops() or
+ * tpm_find_get_ops().
+ */
+ dump_stack();
+ }
+
return 0;
}
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -83,6 +83,7 @@ enum tis_defaults {
enum tpm_tis_flags {
TPM_TIS_ITPM_WORKAROUND = BIT(0),
+ TPM_TIS_INVALID_STATUS = BIT(1),
};
struct tpm_tis_data {
@@ -90,7 +91,7 @@ struct tpm_tis_data {
int locality;
int irq;
bool irq_tested;
- unsigned int flags;
+ unsigned long flags;
void __iomem *ilb_base_addr;
u16 clkrun_enabled;
wait_queue_head_t int_queue;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 692/700] erofs: fix error return code in erofs_read_superblock()
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (690 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 691/700] tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 693/700] block: return the correct bvec when checking for gaps Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Hulk Robot, Wei Yongjun, Gao Xiang, Chao Yu
From: Wei Yongjun <weiyongjun1@huawei.com>
commit 0508c1ad0f264a24c4643701823a45f6c9bd8146 upstream.
'ret' will be overwritten to 0 if erofs_sb_has_sb_chksum() return true,
thus 0 will return in some error handling cases. Fix to return negative
error code -EINVAL instead of 0.
Link: https://lore.kernel.org/r/20210519141657.3062715-1-weiyongjun1@huawei.com
Fixes: b858a4844cfb ("erofs: support superblock checksum")
Cc: stable <stable@vger.kernel.org> # 5.5+
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Gao Xiang <xiang@kernel.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/erofs/super.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -155,6 +155,7 @@ static int erofs_read_superblock(struct
goto out;
}
+ ret = -EINVAL;
blkszbits = dsb->blkszbits;
/* 9(512 bytes) + LOG_SECTORS_PER_BLOCK == LOG_BLOCK_SIZE */
if (blkszbits != LOG_BLOCK_SIZE) {
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 693/700] block: return the correct bvec when checking for gaps
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (691 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 692/700] erofs: fix error return code in erofs_read_superblock() Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 694/700] io_uring: fix blocking inline submission Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Jens Axboe, Johannes Thumshirn,
Pavel Begunkov, Ming Lei, Tejun Heo, Matthew Wilcox (Oracle),
Jeffle Xu, Long Li, Christoph Hellwig
From: Long Li <longli@microsoft.com>
commit c9c9762d4d44dcb1b2ba90cfb4122dc11ceebf31 upstream.
After commit 07173c3ec276 ("block: enable multipage bvecs"), a bvec can
have multiple pages. But bio_will_gap() still assumes one page bvec while
checking for merging. If the pages in the bvec go across the
seg_boundary_mask, this check for merging can potentially succeed if only
the 1st page is tested, and can fail if all the pages are tested.
Later, when SCSI builds the SG list the same check for merging is done in
__blk_segment_map_sg_merge() with all the pages in the bvec tested. This
time the check may fail if the pages in bvec go across the
seg_boundary_mask (but tested okay in bio_will_gap() earlier, so those
BIOs were merged). If this check fails, we end up with a broken SG list
for drivers assuming the SG list not having offsets in intermediate pages.
This results in incorrect pages written to the disk.
Fix this by returning the multi-page bvec when testing gaps for merging.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Jeffle Xu <jefflexu@linux.alibaba.com>
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: 07173c3ec276 ("block: enable multipage bvecs")
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/1623094445-22332-1-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/bio.h | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -44,9 +44,6 @@ static inline unsigned int bio_max_segs(
#define bio_offset(bio) bio_iter_offset((bio), (bio)->bi_iter)
#define bio_iovec(bio) bio_iter_iovec((bio), (bio)->bi_iter)
-#define bio_multiple_segments(bio) \
- ((bio)->bi_iter.bi_size != bio_iovec(bio).bv_len)
-
#define bvec_iter_sectors(iter) ((iter).bi_size >> 9)
#define bvec_iter_end_sector(iter) ((iter).bi_sector + bvec_iter_sectors((iter)))
@@ -271,7 +268,7 @@ static inline void bio_clear_flag(struct
static inline void bio_get_first_bvec(struct bio *bio, struct bio_vec *bv)
{
- *bv = bio_iovec(bio);
+ *bv = mp_bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
}
static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv)
@@ -279,10 +276,9 @@ static inline void bio_get_last_bvec(str
struct bvec_iter iter = bio->bi_iter;
int idx;
- if (unlikely(!bio_multiple_segments(bio))) {
- *bv = bio_iovec(bio);
- return;
- }
+ bio_get_first_bvec(bio, bv);
+ if (bv->bv_len == bio->bi_iter.bi_size)
+ return; /* this bio only has a single bvec */
bio_advance_iter(bio, &iter, iter.bi_size);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 694/700] io_uring: fix blocking inline submission
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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2021-07-12 6:12 ` [PATCH 5.12 693/700] block: return the correct bvec when checking for gaps Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 695/700] io_uring: add IOPOLL and reserved field checks to IORING_OP_RENAMEAT Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Birk Hirdman, Pavel Begunkov, Jens Axboe
From: Pavel Begunkov <asml.silence@gmail.com>
commit 976517f162a05f4315b2373fd11585c395506259 upstream.
There is a complaint against sys_io_uring_enter() blocking if it submits
stdin reads. The problem is in __io_file_supports_async(), which
sees that it's a cdev and allows it to be processed inline.
Punt char devices using generic rules of io_file_supports_async(),
including checking for presence of *_iter() versions of rw callbacks.
Apparently, it will affect most of cdevs with some exceptions like
null and zero devices.
Cc: stable@vger.kernel.org
Reported-by: Birk Hirdman <lonjil@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d60270856b8a4560a639ef5f76e55eb563633599.1623236455.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2683,7 +2683,7 @@ static bool io_file_supports_async(struc
return true;
return false;
}
- if (S_ISCHR(mode) || S_ISSOCK(mode))
+ if (S_ISSOCK(mode))
return true;
if (S_ISREG(mode)) {
if (IS_ENABLED(CONFIG_BLOCK) &&
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 695/700] io_uring: add IOPOLL and reserved field checks to IORING_OP_RENAMEAT
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (693 preceding siblings ...)
2021-07-12 6:12 ` [PATCH 5.12 694/700] io_uring: fix blocking inline submission Greg Kroah-Hartman
@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:12 ` [PATCH 5.12 696/700] io_uring: add IOPOLL and reserved field checks to IORING_OP_UNLINKAT Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dmitry Kadashev, Jens Axboe
From: Jens Axboe <axboe@kernel.dk>
commit ed7eb2592286ead7d3bfdf8adf65e65392167cc4 upstream.
We can't support IOPOLL with non-pollable request types, and we should
check for unused/reserved fields like we do for other request types.
Fixes: 80a261fd0032 ("io_uring: add support for IORING_OP_RENAMEAT")
Cc: stable@vger.kernel.org
Reported-by: Dmitry Kadashev <dkadashev@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/io_uring.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3497,6 +3497,10 @@ static int io_renameat_prep(struct io_ki
struct io_rename *ren = &req->rename;
const char __user *oldf, *newf;
+ if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
+ return -EINVAL;
+ if (sqe->ioprio || sqe->buf_index)
+ return -EINVAL;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
return -EBADF;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 696/700] io_uring: add IOPOLL and reserved field checks to IORING_OP_UNLINKAT
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (694 preceding siblings ...)
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@ 2021-07-12 6:12 ` Greg Kroah-Hartman
2021-07-12 6:13 ` [PATCH 5.12 697/700] mmc: block: Disable CMDQ on the ioctl path Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:12 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Dmitry Kadashev, Jens Axboe
From: Jens Axboe <axboe@kernel.dk>
commit 22634bc5620d29765e5199c7b230a372c7ddcda2 upstream.
We can't support IOPOLL with non-pollable request types, and we should
check for unused/reserved fields like we do for other request types.
Fixes: 14a1143b68ee ("io_uring: add support for IORING_OP_UNLINKAT")
Cc: stable@vger.kernel.org
Reported-by: Dmitry Kadashev <dkadashev@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/io_uring.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3548,6 +3548,10 @@ static int io_unlinkat_prep(struct io_ki
struct io_unlink *un = &req->unlink;
const char __user *fname;
+ if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
+ return -EINVAL;
+ if (sqe->ioprio || sqe->off || sqe->len || sqe->buf_index)
+ return -EINVAL;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
return -EBADF;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 697/700] mmc: block: Disable CMDQ on the ioctl path
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (695 preceding siblings ...)
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@ 2021-07-12 6:13 ` Greg Kroah-Hartman
2021-07-12 6:13 ` [PATCH 5.12 698/700] mmc: vub3000: fix control-request direction Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:13 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Michael Brunner, Bean Huo,
Adrian Hunter, Ulf Hansson
From: Bean Huo <beanhuo@micron.com>
commit 70b52f09080565030a530a784f1c9948a7f48ca3 upstream.
According to the eMMC Spec:
"When command queuing is enabled (CMDQ Mode En bit in CMDQ_MODE_EN
field is set to ‘1’) class 11 commands are the only method through
which data transfer tasks can be issued. Existing data transfer
commands, namely CMD18/CMD17 and CMD25/CMD24, are not supported when
command queuing is enabled."
which means if CMDQ is enabled, the FFU commands will not be supported.
To fix this issue, just simply disable CMDQ on the ioctl path, and
re-enable CMDQ once ioctl request is completed.
Tested-by: Michael Brunner <Michael.Brunner@kontron.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: 1e8e55b67030 (mmc: block: Add CQE support)
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210504203209.361597-1-huobean@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/core/block.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1004,6 +1004,12 @@ static void mmc_blk_issue_drv_op(struct
switch (mq_rq->drv_op) {
case MMC_DRV_OP_IOCTL:
+ if (card->ext_csd.cmdq_en) {
+ ret = mmc_cmdq_disable(card);
+ if (ret)
+ break;
+ }
+ fallthrough;
case MMC_DRV_OP_IOCTL_RPMB:
idata = mq_rq->drv_op_data;
for (i = 0, ret = 0; i < mq_rq->ioc_count; i++) {
@@ -1014,6 +1020,8 @@ static void mmc_blk_issue_drv_op(struct
/* Always switch back to main area after RPMB access */
if (rpmb_ioctl)
mmc_blk_part_switch(card, 0);
+ else if (card->reenable_cmdq && !card->ext_csd.cmdq_en)
+ mmc_cmdq_enable(card);
break;
case MMC_DRV_OP_BOOT_WP:
ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP,
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 698/700] mmc: vub3000: fix control-request direction
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (696 preceding siblings ...)
2021-07-12 6:13 ` [PATCH 5.12 697/700] mmc: block: Disable CMDQ on the ioctl path Greg Kroah-Hartman
@ 2021-07-12 6:13 ` Greg Kroah-Hartman
2021-07-12 6:13 ` [PATCH 5.12 699/700] media: exynos4-is: remove a now unused integer Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:13 UTC (permalink / raw)
To: linux-kernel; +Cc: Greg Kroah-Hartman, stable, Johan Hovold, Ulf Hansson
From: Johan Hovold <johan@kernel.org>
commit 3c0bb3107703d2c58f7a0a7a2060bb57bc120326 upstream.
The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.
Fix the SET_ROM_WAIT_STATES request which erroneously used
usb_rcvctrlpipe().
Fixes: 88095e7b473a ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Cc: stable@vger.kernel.org # 3.0
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210521133026.17296-1-johan@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/mmc/host/vub300.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -2279,7 +2279,7 @@ static int vub300_probe(struct usb_inter
if (retval < 0)
goto error5;
retval =
- usb_control_msg(vub300->udev, usb_rcvctrlpipe(vub300->udev, 0),
+ usb_control_msg(vub300->udev, usb_sndctrlpipe(vub300->udev, 0),
SET_ROM_WAIT_STATES,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
firmware_rom_wait_states, 0x0000, NULL, 0, HZ);
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 699/700] media: exynos4-is: remove a now unused integer
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (697 preceding siblings ...)
2021-07-12 6:13 ` [PATCH 5.12 698/700] mmc: vub3000: fix control-request direction Greg Kroah-Hartman
@ 2021-07-12 6:13 ` Greg Kroah-Hartman
2021-07-12 6:13 ` [PATCH 5.12 700/700] scsi: core: Retry I/O for Notify (Enable Spinup) Required error Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2021-07-12 6:13 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Stephen Rothwell, Mauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
commit 29dd19e3ac7b2a8671ebeac02859232ce0e34f58 upstream.
The usage of pm_runtime_resume_and_get() removed the need of a
temporary integer. So, drop it.
Fixes: 59f96244af94 ("media: exynos4-is: fix pm_runtime_get_sync() usage count")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/media/platform/exynos4-is/media-dev.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -1282,7 +1282,6 @@ static DEVICE_ATTR(subdev_conf_mode, S_I
static int cam_clk_prepare(struct clk_hw *hw)
{
struct cam_clk *camclk = to_cam_clk(hw);
- int ret;
if (camclk->fmd->pmf == NULL)
return -ENODEV;
^ permalink raw reply [flat|nested] 708+ messages in thread* [PATCH 5.12 700/700] scsi: core: Retry I/O for Notify (Enable Spinup) Required error
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
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@ 2021-07-12 6:13 ` Greg Kroah-Hartman
2021-07-12 13:48 ` [PATCH 5.12 000/700] 5.12.17-rc1 review Guenter Roeck
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From: Greg Kroah-Hartman @ 2021-07-12 6:13 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, stable, Bart Van Assche, Quat Le, Martin K. Petersen
From: Quat Le <quat.le@oracle.com>
commit 104739aca4488909175e9e31d5cd7d75b82a2046 upstream.
If the device is power-cycled, it takes time for the initiator to transmit
the periodic NOTIFY (ENABLE SPINUP) SAS primitive, and for the device to
respond to the primitive to become ACTIVE. Retry the I/O request to allow
the device time to become ACTIVE.
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210629155826.48441-1-quat.le@oracle.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Quat Le <quat.le@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/scsi_lib.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -761,6 +761,7 @@ static void scsi_io_completion_action(st
case 0x07: /* operation in progress */
case 0x08: /* Long write in progress */
case 0x09: /* self test in progress */
+ case 0x11: /* notify (enable spinup) required */
case 0x14: /* space allocation in progress */
case 0x1a: /* start stop unit in progress */
case 0x1b: /* sanitize in progress */
^ permalink raw reply [flat|nested] 708+ messages in thread* Re: [PATCH 5.12 000/700] 5.12.17-rc1 review
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (699 preceding siblings ...)
2021-07-12 6:13 ` [PATCH 5.12 700/700] scsi: core: Retry I/O for Notify (Enable Spinup) Required error Greg Kroah-Hartman
@ 2021-07-12 13:48 ` Guenter Roeck
2021-07-12 17:12 ` Florian Fainelli
` (4 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Guenter Roeck @ 2021-07-12 13:48 UTC (permalink / raw)
To: Greg Kroah-Hartman, linux-kernel
Cc: torvalds, akpm, shuah, patches, lkft-triage, pavel, jonathanh,
f.fainelli, stable
On 7/11/21 11:01 PM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.12.17 release.
> There are 700 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 14 Jul 2021 06:02:46 +0000.
> Anything received after that time might be too late.
>
Build results:
total: 154 pass: 153 fail: 1
Failed builds:
riscv32:allmodconfig
Qemu test results:
total: 462 pass: 462 fail: 0
riscv32 build failure as before, inherited from mainline.
Error log:
cc1: error: '10208' is not a valid offset in '-mstack-protector-guard-offset='
Tested-by: Guenter Roeck <linux@roeck-us.net>
Guenter
^ permalink raw reply [flat|nested] 708+ messages in thread* Re: [PATCH 5.12 000/700] 5.12.17-rc1 review
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (700 preceding siblings ...)
2021-07-12 13:48 ` [PATCH 5.12 000/700] 5.12.17-rc1 review Guenter Roeck
@ 2021-07-12 17:12 ` Florian Fainelli
2021-07-13 0:12 ` Fox Chen
` (3 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Florian Fainelli @ 2021-07-12 17:12 UTC (permalink / raw)
To: Greg Kroah-Hartman, linux-kernel
Cc: torvalds, akpm, linux, shuah, patches, lkft-triage, pavel,
jonathanh, stable
On 7/11/21 11:01 PM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.12.17 release.
> There are 700 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 14 Jul 2021 06:02:46 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.12.17-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
On ARCH_BRCMSTB, using 32-bit and 64-bit ARM kernels:
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian
^ permalink raw reply [flat|nested] 708+ messages in thread* RE: [PATCH 5.12 000/700] 5.12.17-rc1 review
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (701 preceding siblings ...)
2021-07-12 17:12 ` Florian Fainelli
@ 2021-07-13 0:12 ` Fox Chen
2021-07-13 1:13 ` Shuah Khan
` (2 subsequent siblings)
705 siblings, 0 replies; 708+ messages in thread
From: Fox Chen @ 2021-07-13 0:12 UTC (permalink / raw)
To: linux-kernel
Cc: Greg Kroah-Hartman, torvalds, akpm, linux, shuah, patches,
lkft-triage, pavel, jonathanh, f.fainelli, stable, Fox Chen
On Mon, 12 Jul 2021 08:01:23 +0200, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
> This is the start of the stable review cycle for the 5.12.17 release.
> There are 700 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 14 Jul 2021 06:02:46 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.12.17-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
5.12.17-rc1 Successfully Compiled and booted on my Raspberry PI 4b (8g) (bcm2711)
Tested-by: Fox Chen <foxhlchen@gmail.com>
^ permalink raw reply [flat|nested] 708+ messages in thread* Re: [PATCH 5.12 000/700] 5.12.17-rc1 review
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (702 preceding siblings ...)
2021-07-13 0:12 ` Fox Chen
@ 2021-07-13 1:13 ` Shuah Khan
2021-07-13 8:32 ` Naresh Kamboju
2021-07-13 15:20 ` Justin Forbes
705 siblings, 0 replies; 708+ messages in thread
From: Shuah Khan @ 2021-07-13 1:13 UTC (permalink / raw)
To: Greg Kroah-Hartman, linux-kernel
Cc: torvalds, akpm, linux, shuah, patches, lkft-triage, pavel,
jonathanh, f.fainelli, stable, Shuah Khan
On 7/12/21 12:01 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.12.17 release.
> There are 700 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 14 Jul 2021 06:02:46 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.12.17-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
Compiled and booted on my test system. No dmesg regressions.
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
thanks,
-- Shuah
^ permalink raw reply [flat|nested] 708+ messages in thread* Re: [PATCH 5.12 000/700] 5.12.17-rc1 review
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (703 preceding siblings ...)
2021-07-13 1:13 ` Shuah Khan
@ 2021-07-13 8:32 ` Naresh Kamboju
2021-07-13 15:20 ` Justin Forbes
705 siblings, 0 replies; 708+ messages in thread
From: Naresh Kamboju @ 2021-07-13 8:32 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: open list, Linus Torvalds, Andrew Morton, Guenter Roeck,
Shuah Khan, patches, lkft-triage, Pavel Machek, Jon Hunter,
Florian Fainelli, linux-stable
On Mon, 12 Jul 2021 at 12:25, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.12.17 release.
> There are 700 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 14 Jul 2021 06:02:46 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.12.17-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
## Build
* kernel: 5.12.17-rc1
* git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* git branch: linux-5.12.y
* git commit: fd3222df4dfe575b8d1fd1aef320a441f3833513
* git describe: v5.12.16-705-gfd3222df4dfe
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.12.y/build/v5.12.16-705-gfd3222df4dfe
## No regressions (compared to v5.12.16-700-g60202d2cb2e2)
## No fixes (compared to v5.12.16-700-g60202d2cb2e2)
## Test result summary
total: 83175, pass: 68018, fail: 1941, skip: 11855, xfail: 1361,
## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 193 total, 193 passed, 0 failed
* arm64: 27 total, 27 passed, 0 failed
* dragonboard-410c: 1 total, 1 passed, 0 failed
* hi6220-hikey: 1 total, 1 passed, 0 failed
* i386: 26 total, 26 passed, 0 failed
* juno-r2: 1 total, 1 passed, 0 failed
* mips: 45 total, 45 passed, 0 failed
* parisc: 9 total, 9 passed, 0 failed
* powerpc: 27 total, 27 passed, 0 failed
* riscv: 21 total, 21 passed, 0 failed
* s390: 18 total, 18 passed, 0 failed
* sh: 18 total, 18 passed, 0 failed
* sparc: 9 total, 9 passed, 0 failed
* x15: 1 total, 0 passed, 1 failed
* x86: 1 total, 1 passed, 0 failed
* x86_64: 27 total, 27 passed, 0 failed
## Test suites summary
* fwts
* igt-gpu-tools
* install-android-platform-tools-r2600
* kselftest-
* kselftest-android
* kselftest-bpf
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-drivers
* kselftest-efivarfs
* kselftest-filesystems
* kselftest-firmware
* kselftest-fpu
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-ir
* kselftest-kcmp
* kselftest-kexec
* kselftest-kvm
* kselftest-lib
* kselftest-livepatch
* kselftest-lkdtm
* kselftest-membarrier
* kselftest-memfd
* kselftest-memory-hotplug
* kselftest-mincore
* kselftest-mount
* kselftest-mqueue
* kselftest-net
* kselftest-netfilter
* kselftest-nsfs
* kselftest-openat2
* kselftest-pid_namespace
* kselftest-pidfd
* kselftest-proc
* kselftest-pstore
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-splice
* kselftest-static_keys
* kselftest-sync
* kselftest-sysctl
* kselftest-tc-testing
* kselftest-timens
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user
* kselftest-vm
* kselftest-vsyscall-mode-native-
* kselftest-vsyscall-mode-none-
* kselftest-x86
* kselftest-zram
* kunit
* kvm-unit-tests
* libgpiod
* libhugetlbfs
* linux-log-parser
* ltp-cap_bounds-tests
* ltp-commands-tests
* ltp-containers-tests
* ltp-controllers-tests
* ltp-cpuhotplug-tests
* ltp-crypto-tests
* ltp-cve-tests
* ltp-dio-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl-tests
* ltp-open-posix-tests
* ltp-pty-tests
* ltp-sched-tests
* ltp-securebits-tests
* ltp-syscalls-tests
* ltp-tracing-tests
* network-basic-tests
* packetdrill
* perf
* rcutorture
* v4l2-compliance
--
Linaro LKFT
https://lkft.linaro.org
^ permalink raw reply [flat|nested] 708+ messages in thread* Re: [PATCH 5.12 000/700] 5.12.17-rc1 review
2021-07-12 6:01 [PATCH 5.12 000/700] 5.12.17-rc1 review Greg Kroah-Hartman
` (704 preceding siblings ...)
2021-07-13 8:32 ` Naresh Kamboju
@ 2021-07-13 15:20 ` Justin Forbes
705 siblings, 0 replies; 708+ messages in thread
From: Justin Forbes @ 2021-07-13 15:20 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: linux-kernel, torvalds, akpm, linux, shuah, patches, lkft-triage,
pavel, jonathanh, f.fainelli, stable
On Mon, Jul 12, 2021 at 08:01:23AM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.12.17 release.
> There are 700 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 14 Jul 2021 06:02:46 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.12.17-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
Tested rc1 minus the offending patch against the Fedora build system
(aarch64, armv7, ppc64le, s390x, x86_64), and boot tested x86_64. No
regressions noted.
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
^ permalink raw reply [flat|nested] 708+ messages in thread