[PATCH 5.15 00/73] 5.15.13-rc1 review

[PATCH 5.15 00/73] 5.15.13-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 5.15.13 release.
There are 73 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, 05 Jan 2022 14:20:40 +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-5.15.13-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-5.15.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 5.15.13-rc1

Adrian Hunter <adrian.hunter@intel.com>
    perf scripts python: intel-pt-events.py: Fix printing of switch events

Adrian Hunter <adrian.hunter@intel.com>
    perf script: Fix CPU filtering of a script's switch events

Adrian Hunter <adrian.hunter@intel.com>
    perf intel-pt: Fix parsing of VM time correlation arguments

Christian Brauner <christian.brauner@ubuntu.com>
    fs/mount_setattr: always cleanup mount_kattr

Muchun Song <songmuchun@bytedance.com>
    net: fix use-after-free in tw_timer_handler

SeongJae Park <sj@kernel.org>
    mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfs_target_ids_write()'

Leo L. Schwab <ewhac@ewhac.org>
    Input: spaceball - fix parsing of movement data packets

Pavel Skripkin <paskripkin@gmail.com>
    Input: appletouch - initialize work before device registration

Alexey Makhalov <amakhalov@vmware.com>
    scsi: vmw_pvscsi: Set residual data length conditionally

Todd Kjos <tkjos@google.com>
    binder: fix async_free_space accounting for empty parcels

Andra Paraschiv <andraprs@amazon.com>
    nitro_enclaves: Use get_user_pages_unlocked() call to handle mmap assert

Chunfeng Yun <chunfeng.yun@mediatek.com>
    usb: mtu3: set interval of FS intr and isoc endpoint

Chunfeng Yun <chunfeng.yun@mediatek.com>
    usb: mtu3: fix list_head check warning

Chunfeng Yun <chunfeng.yun@mediatek.com>
    usb: mtu3: add memory barrier before set GPD's HWO

Vincent Pelletier <plr.vincent@gmail.com>
    usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.

Mathias Nyman <mathias.nyman@linux.intel.com>
    xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set.

Angus Wang <angus.wang@amd.com>
    drm/amd/display: Changed pipe split policy to allow for multi-display pipe split

Alex Deucher <alexander.deucher@amd.com>
    drm/amdgpu: add support for IP discovery gc_info table v2

chen gong <curry.gong@amd.com>
    drm/amdgpu: When the VCN(1.0) block is suspended, powergating is explicitly enabled

Christian König <christian.koenig@amd.com>
    drm/nouveau: wait for the exclusive fence after the shared ones v2

Dmitry V. Levin <ldv@altlinux.org>
    uapi: fix linux/nfc.h userspace compilation errors

Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
    nfc: uapi: use kernel size_t to fix user-space builds

Pavel Skripkin <paskripkin@gmail.com>
    i2c: validate user data in compat ioctl

Miaoqian Lin <linmq006@gmail.com>
    fsl/fman: Fix missing put_device() call in fman_port_probe

Jianguo Wu <wujianguo@chinatelecom.cn>
    selftests: net: using ping6 for IPv6 in udpgro_fwd.sh

Jiasheng Jiang <jiasheng@iscas.ac.cn>
    net/ncsi: check for error return from call to nla_put_u32

Nikolay Aleksandrov <nikolay@nvidia.com>
    net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper

Jianguo Wu <wujianguo@chinatelecom.cn>
    selftests: net: Fix a typo in udpgro_fwd.sh

wujianguo <wujianguo@chinatelecom.cn>
    selftests/net: udpgso_bench_tx: fix dst ip argument

Nikolay Aleksandrov <nikolay@nvidia.com>
    net: bridge: mcast: add and enforce startup query interval minimum

Nikolay Aleksandrov <nikolay@nvidia.com>
    net: bridge: mcast: add and enforce query interval minimum

Gal Pressman <gal@nvidia.com>
    net/mlx5e: Fix wrong features assignment in case of error

Christophe JAILLET <christophe.jaillet@wanadoo.fr>
    ionic: Initialize the 'lif->dbid_inuse' bitmap

Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
    drm/amd/display: Set optimize_pwr_state for DCN31

Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
    drm/amd/display: Send s0i2_rdy in stream_count == 0 optimization

James McLaughlin <james.mclaughlin@qsc.com>
    igc: Fix TX timestamp support for non-MSI-X platforms

Vinicius Costa Gomes <vinicius.gomes@intel.com>
    igc: Do not enable crosstimestamping for i225-V models

Dust Li <dust.li@linux.alibaba.com>
    net/smc: fix kernel panic caused by race of smc_sock

Dust Li <dust.li@linux.alibaba.com>
    net/smc: don't send CDC/LLC message if link not ready

Wei Yongjun <weiyongjun1@huawei.com>
    NFC: st21nfca: Fix memory leak in device probe and remove

Aleksander Jan Bajkowski <olek2@wp.pl>
    net: lantiq_xrx200: fix statistics of received bytes

Christophe JAILLET <christophe.jaillet@wanadoo.fr>
    net: ag71xx: Fix a potential double free in error handling paths

Matthias-Christian Ott <ott@mirix.org>
    net: usb: pegasus: Do not drop long Ethernet frames

Karsten Graul <kgraul@linux.ibm.com>
    net/smc: fix using of uninitialized completions

Xin Long <lucien.xin@gmail.com>
    sctp: use call_rcu to free endpoint

Miaoqian Lin <linmq006@gmail.com>
    net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register

Coco Li <lixiaoyan@google.com>
    selftests: Calculate udpgso segment count without header adjustment

Coco Li <lixiaoyan@google.com>
    udp: using datalen to cap ipv6 udp max gso segments

Chris Mi <cmi@nvidia.com>
    net/mlx5e: Delete forward rule for ct or sample action

Roi Dayan <roid@nvidia.com>
    net/mlx5e: Use tc sample stubs instead of ifdefs in source file

Maxim Mikityanskiy <maximmi@mellanox.com>
    net/mlx5e: Fix ICOSQ recovery flow for XSK

Maxim Mikityanskiy <maximmi@nvidia.com>
    net/mlx5e: Fix interoperability between XSK and ICOSQ recovery flow

Amir Tzin <amirtz@nvidia.com>
    net/mlx5e: Wrap the tx reporter dump callback to extract the sq

Chris Mi <cmi@nvidia.com>
    net/mlx5: Fix tc max supported prio for nic mode

Moshe Shemesh <moshe@nvidia.com>
    net/mlx5: Fix SF health recovery flow

Shay Drory <shayd@nvidia.com>
    net/mlx5: Fix error print in case of IRQ request failed

Miaoqian Lin <linmq006@gmail.com>
    net/mlx5: DR, Fix NULL vs IS_ERR checking in dr_domain_init_resources

Dan Carpenter <dan.carpenter@oracle.com>
    scsi: lpfc: Terminate string in lpfc_debugfs_nvmeio_trc_write()

Tom Rix <trix@redhat.com>
    selinux: initialize proto variable in selinux_ip_postroute_compat()

Javier Martinez Canillas <javierm@redhat.com>
    efi: Move efifb_setup_from_dmi() prototype from arch headers

Michael Ellerman <mpe@ellerman.id.au>
    powerpc/ptdump: Fix DEBUG_WX since generic ptdump conversion

Heiko Carstens <hca@linux.ibm.com>
    recordmcount.pl: fix typo in s390 mcount regex

Libin Yang <libin.yang@intel.com>
    ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2

Libin Yang <libin.yang@intel.com>
    ALSA: hda: intel-sdw-acpi: harden detection of controller

Jackie Liu <liuyun01@kylinos.cn>
    memblock: fix memblock_phys_alloc() section mismatch error

Wang Qing <wangqing@vivo.com>
    platform/x86: apple-gmux: use resource_size() with res

Miaoqian Lin <linmq006@gmail.com>
    platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters

Helge Deller <deller@gmx.de>
    parisc: Clear stale IIR value on instruction access rights trap

Paul Blakey <paulb@nvidia.com>
    net/sched: Extend qdisc control block with tc control block

Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
    tomoyo: use hwight16() in tomoyo_domain_quota_is_ok()

Dmitry Vyukov <dvyukov@google.com>
    tomoyo: Check exceeded quota early in tomoyo_domain_quota_is_ok().

Samuel Čavoj <samuel@cavoj.net>
    Input: i8042 - enable deferred probe quirk for ASUS UM325UA

Takashi Iwai <tiwai@suse.de>
    Input: i8042 - add deferred probe support


-------------

Diffstat:

 Documentation/admin-guide/kernel-parameters.txt    |  2 +
 Makefile                                           |  4 +-
 arch/arm/include/asm/efi.h                         |  1 -
 arch/arm64/include/asm/efi.h                       |  1 -
 arch/parisc/kernel/traps.c                         |  2 +
 arch/powerpc/mm/ptdump/ptdump.c                    |  2 +-
 arch/riscv/include/asm/efi.h                       |  1 -
 arch/x86/include/asm/efi.h                         |  2 -
 drivers/android/binder_alloc.c                     |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c      | 76 +++++++++++++++-------
 drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c              |  7 ++
 .../amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c   |  1 +
 .../gpu/drm/amd/display/dc/dcn20/dcn20_resource.c  |  2 +-
 .../gpu/drm/amd/display/dc/dcn21/dcn21_resource.c  |  2 +-
 .../gpu/drm/amd/display/dc/dcn30/dcn30_resource.c  |  2 +-
 .../drm/amd/display/dc/dcn301/dcn301_resource.c    |  2 +-
 .../drm/amd/display/dc/dcn302/dcn302_resource.c    |  2 +-
 .../drm/amd/display/dc/dcn303/dcn303_resource.c    |  2 +-
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c  |  1 +
 .../gpu/drm/amd/display/dc/dcn31/dcn31_resource.c  |  2 +-
 drivers/gpu/drm/amd/include/discovery.h            | 49 ++++++++++++++
 drivers/gpu/drm/nouveau/nouveau_fence.c            | 28 ++++----
 drivers/i2c/i2c-dev.c                              |  3 +
 drivers/input/joystick/spaceball.c                 | 11 +++-
 drivers/input/mouse/appletouch.c                   |  4 +-
 drivers/input/serio/i8042-x86ia64io.h              | 21 ++++++
 drivers/input/serio/i8042.c                        | 54 +++++++++------
 drivers/net/ethernet/atheros/ag71xx.c              | 23 +++----
 drivers/net/ethernet/freescale/fman/fman_port.c    | 12 ++--
 drivers/net/ethernet/intel/igc/igc_main.c          |  6 ++
 drivers/net/ethernet/intel/igc/igc_ptp.c           | 15 ++++-
 drivers/net/ethernet/lantiq_xrx200.c               |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en.h       |  5 +-
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  2 +
 .../net/ethernet/mellanox/mlx5/core/en/rep/tc.c    |  2 -
 .../ethernet/mellanox/mlx5/core/en/reporter_rx.c   | 35 +++++++++-
 .../ethernet/mellanox/mlx5/core/en/reporter_tx.c   | 10 ++-
 .../net/ethernet/mellanox/mlx5/core/en/tc/sample.h | 27 ++++++++
 .../net/ethernet/mellanox/mlx5/core/en/xsk/setup.c | 16 ++++-
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c  | 48 +++++++++-----
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c    | 29 ++-------
 .../ethernet/mellanox/mlx5/core/lib/fs_chains.c    |  3 +
 drivers/net/ethernet/mellanox/mlx5/core/main.c     | 11 ++--
 drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c  |  4 +-
 .../mellanox/mlx5/core/steering/dr_domain.c        |  5 +-
 drivers/net/ethernet/pensando/ionic/ionic_lif.c    |  2 +-
 drivers/net/phy/fixed_phy.c                        |  4 +-
 drivers/net/usb/pegasus.c                          |  4 +-
 drivers/nfc/st21nfca/i2c.c                         | 29 ++++++---
 drivers/platform/mellanox/mlxbf-pmc.c              |  4 +-
 drivers/platform/x86/apple-gmux.c                  |  2 +-
 drivers/scsi/lpfc/lpfc_debugfs.c                   |  4 +-
 drivers/scsi/vmw_pvscsi.c                          |  7 +-
 drivers/usb/gadget/function/f_fs.c                 |  9 ++-
 drivers/usb/host/xhci-pci.c                        |  5 +-
 drivers/usb/mtu3/mtu3_gadget.c                     |  8 +++
 drivers/usb/mtu3/mtu3_qmu.c                        |  7 +-
 drivers/virt/nitro_enclaves/ne_misc_dev.c          |  5 +-
 fs/namespace.c                                     |  9 ++-
 include/linux/efi.h                                |  6 ++
 include/linux/memblock.h                           |  4 +-
 include/net/pkt_sched.h                            | 15 +++++
 include/net/sch_generic.h                          |  2 -
 include/net/sctp/sctp.h                            |  6 +-
 include/net/sctp/structs.h                         |  3 +-
 include/uapi/linux/nfc.h                           |  6 +-
 mm/damon/dbgfs.c                                   |  8 +++
 net/bridge/br_multicast.c                          | 32 +++++++++
 net/bridge/br_netlink.c                            |  4 +-
 net/bridge/br_private.h                            | 12 +++-
 net/bridge/br_sysfs_br.c                           |  4 +-
 net/bridge/br_vlan_options.c                       |  4 +-
 net/core/dev.c                                     |  8 +--
 net/ipv4/af_inet.c                                 | 10 ++-
 net/ipv6/udp.c                                     |  2 +-
 net/ncsi/ncsi-netlink.c                            |  6 +-
 net/sched/act_ct.c                                 | 14 ++--
 net/sched/cls_api.c                                |  6 +-
 net/sched/cls_flower.c                             |  3 +-
 net/sched/sch_frag.c                               |  3 +-
 net/sctp/diag.c                                    | 12 ++--
 net/sctp/endpointola.c                             | 23 ++++---
 net/sctp/socket.c                                  | 23 ++++---
 net/smc/smc.h                                      |  5 ++
 net/smc/smc_cdc.c                                  | 52 +++++++--------
 net/smc/smc_cdc.h                                  |  2 +-
 net/smc/smc_core.c                                 | 27 ++++++--
 net/smc/smc_core.h                                 |  6 ++
 net/smc/smc_ib.c                                   |  4 +-
 net/smc/smc_ib.h                                   |  1 +
 net/smc/smc_llc.c                                  |  2 +-
 net/smc/smc_wr.c                                   | 51 +++------------
 net/smc/smc_wr.h                                   |  5 +-
 scripts/recordmcount.pl                            |  2 +-
 security/selinux/hooks.c                           |  2 +-
 security/tomoyo/util.c                             | 31 ++++-----
 sound/hda/intel-sdw-acpi.c                         | 13 +++-
 tools/perf/builtin-script.c                        |  2 +-
 tools/perf/scripts/python/intel-pt-events.py       | 23 ++++---
 tools/perf/util/intel-pt.c                         |  1 +
 tools/testing/selftests/net/udpgro_fwd.sh          |  6 +-
 tools/testing/selftests/net/udpgso.c               | 12 ++--
 tools/testing/selftests/net/udpgso_bench_tx.c      |  8 ++-
 103 files changed, 736 insertions(+), 375 deletions(-)

[PATCH 5.15 01/73] Input: i8042 - add deferred probe support

[Greg Kroah-Hartman]

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 9222ba68c3f4065f6364b99cc641b6b019ef2d42 ]

We've got a bug report about the non-working keyboard on ASUS ZenBook
UX425UA.  It seems that the PS/2 device isn't ready immediately at
boot but takes some seconds to get ready.  Until now, the only
workaround is to defer the probe, but it's available only when the
driver is a module.  However, many distros, including openSUSE as in
the original report, build the PS/2 input drivers into kernel, hence
it won't work easily.

This patch adds the support for the deferred probe for i8042 stuff as
a workaround of the problem above.  When the deferred probe mode is
enabled and the device couldn't be probed, it'll be repeated with the
standard deferred probe mechanism.

The deferred probe mode is enabled either via the new option
i8042.probe_defer or via the quirk table entry.  As of this patch, the
quirk table contains only ASUS ZenBook UX425UA.

The deferred probe part is based on Fabio's initial work.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1190256
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Samuel Čavoj <samuel@cavoj.net>
Link: https://lore.kernel.org/r/20211117063757.11380-1-tiwai@suse.de

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../admin-guide/kernel-parameters.txt         |  2 +
 drivers/input/serio/i8042-x86ia64io.h         | 14 +++++
 drivers/input/serio/i8042.c                   | 54 ++++++++++++-------
 3 files changed, 51 insertions(+), 19 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index a454f438bd621..8ff6dafafdf8d 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1690,6 +1690,8 @@
 			architectures force reset to be always executed
 	i8042.unlock	[HW] Unlock (ignore) the keylock
 	i8042.kbdreset	[HW] Reset device connected to KBD port
+	i8042.probe_defer
+			[HW] Allow deferred probing upon i8042 probe errors
 
 	i810=		[HW,DRM]
 
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index aedd055410443..1acc7c8449294 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -995,6 +995,17 @@ static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 	{ }
 };
 
+static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = {
+	{
+		/* ASUS ZenBook UX425UA */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA"),
+		},
+	},
+	{ }
+};
+
 #endif /* CONFIG_X86 */
 
 #ifdef CONFIG_PNP
@@ -1315,6 +1326,9 @@ static int __init i8042_platform_init(void)
 	if (dmi_check_system(i8042_dmi_kbdreset_table))
 		i8042_kbdreset = true;
 
+	if (dmi_check_system(i8042_dmi_probe_defer_table))
+		i8042_probe_defer = true;
+
 	/*
 	 * A20 was already enabled during early kernel init. But some buggy
 	 * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 0b9f1d0a8f8b0..3fc0a89cc785c 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -45,6 +45,10 @@ static bool i8042_unlock;
 module_param_named(unlock, i8042_unlock, bool, 0);
 MODULE_PARM_DESC(unlock, "Ignore keyboard lock.");
 
+static bool i8042_probe_defer;
+module_param_named(probe_defer, i8042_probe_defer, bool, 0);
+MODULE_PARM_DESC(probe_defer, "Allow deferred probing.");
+
 enum i8042_controller_reset_mode {
 	I8042_RESET_NEVER,
 	I8042_RESET_ALWAYS,
@@ -711,7 +715,7 @@ static int i8042_set_mux_mode(bool multiplex, unsigned char *mux_version)
  * LCS/Telegraphics.
  */
 
-static int __init i8042_check_mux(void)
+static int i8042_check_mux(void)
 {
 	unsigned char mux_version;
 
@@ -740,10 +744,10 @@ static int __init i8042_check_mux(void)
 /*
  * The following is used to test AUX IRQ delivery.
  */
-static struct completion i8042_aux_irq_delivered __initdata;
-static bool i8042_irq_being_tested __initdata;
+static struct completion i8042_aux_irq_delivered;
+static bool i8042_irq_being_tested;
 
-static irqreturn_t __init i8042_aux_test_irq(int irq, void *dev_id)
+static irqreturn_t i8042_aux_test_irq(int irq, void *dev_id)
 {
 	unsigned long flags;
 	unsigned char str, data;
@@ -770,7 +774,7 @@ static irqreturn_t __init i8042_aux_test_irq(int irq, void *dev_id)
  * verifies success by readinng CTR. Used when testing for presence of AUX
  * port.
  */
-static int __init i8042_toggle_aux(bool on)
+static int i8042_toggle_aux(bool on)
 {
 	unsigned char param;
 	int i;
@@ -798,7 +802,7 @@ static int __init i8042_toggle_aux(bool on)
  * the presence of an AUX interface.
  */
 
-static int __init i8042_check_aux(void)
+static int i8042_check_aux(void)
 {
 	int retval = -1;
 	bool irq_registered = false;
@@ -1005,7 +1009,7 @@ static int i8042_controller_init(void)
 
 		if (i8042_command(&ctr[n++ % 2], I8042_CMD_CTL_RCTR)) {
 			pr_err("Can't read CTR while initializing i8042\n");
-			return -EIO;
+			return i8042_probe_defer ? -EPROBE_DEFER : -EIO;
 		}
 
 	} while (n < 2 || ctr[0] != ctr[1]);
@@ -1320,7 +1324,7 @@ static void i8042_shutdown(struct platform_device *dev)
 	i8042_controller_reset(false);
 }
 
-static int __init i8042_create_kbd_port(void)
+static int i8042_create_kbd_port(void)
 {
 	struct serio *serio;
 	struct i8042_port *port = &i8042_ports[I8042_KBD_PORT_NO];
@@ -1349,7 +1353,7 @@ static int __init i8042_create_kbd_port(void)
 	return 0;
 }
 
-static int __init i8042_create_aux_port(int idx)
+static int i8042_create_aux_port(int idx)
 {
 	struct serio *serio;
 	int port_no = idx < 0 ? I8042_AUX_PORT_NO : I8042_MUX_PORT_NO + idx;
@@ -1386,13 +1390,13 @@ static int __init i8042_create_aux_port(int idx)
 	return 0;
 }
 
-static void __init i8042_free_kbd_port(void)
+static void i8042_free_kbd_port(void)
 {
 	kfree(i8042_ports[I8042_KBD_PORT_NO].serio);
 	i8042_ports[I8042_KBD_PORT_NO].serio = NULL;
 }
 
-static void __init i8042_free_aux_ports(void)
+static void i8042_free_aux_ports(void)
 {
 	int i;
 
@@ -1402,7 +1406,7 @@ static void __init i8042_free_aux_ports(void)
 	}
 }
 
-static void __init i8042_register_ports(void)
+static void i8042_register_ports(void)
 {
 	int i;
 
@@ -1443,7 +1447,7 @@ static void i8042_free_irqs(void)
 	i8042_aux_irq_registered = i8042_kbd_irq_registered = false;
 }
 
-static int __init i8042_setup_aux(void)
+static int i8042_setup_aux(void)
 {
 	int (*aux_enable)(void);
 	int error;
@@ -1485,7 +1489,7 @@ static int __init i8042_setup_aux(void)
 	return error;
 }
 
-static int __init i8042_setup_kbd(void)
+static int i8042_setup_kbd(void)
 {
 	int error;
 
@@ -1535,7 +1539,7 @@ static int i8042_kbd_bind_notifier(struct notifier_block *nb,
 	return 0;
 }
 
-static int __init i8042_probe(struct platform_device *dev)
+static int i8042_probe(struct platform_device *dev)
 {
 	int error;
 
@@ -1600,6 +1604,7 @@ static struct platform_driver i8042_driver = {
 		.pm	= &i8042_pm_ops,
 #endif
 	},
+	.probe		= i8042_probe,
 	.remove		= i8042_remove,
 	.shutdown	= i8042_shutdown,
 };
@@ -1610,7 +1615,6 @@ static struct notifier_block i8042_kbd_bind_notifier_block = {
 
 static int __init i8042_init(void)
 {
-	struct platform_device *pdev;
 	int err;
 
 	dbg_init();
@@ -1626,17 +1630,29 @@ static int __init i8042_init(void)
 	/* Set this before creating the dev to allow i8042_command to work right away */
 	i8042_present = true;
 
-	pdev = platform_create_bundle(&i8042_driver, i8042_probe, NULL, 0, NULL, 0);
-	if (IS_ERR(pdev)) {
-		err = PTR_ERR(pdev);
+	err = platform_driver_register(&i8042_driver);
+	if (err)
 		goto err_platform_exit;
+
+	i8042_platform_device = platform_device_alloc("i8042", -1);
+	if (!i8042_platform_device) {
+		err = -ENOMEM;
+		goto err_unregister_driver;
 	}
 
+	err = platform_device_add(i8042_platform_device);
+	if (err)
+		goto err_free_device;
+
 	bus_register_notifier(&serio_bus, &i8042_kbd_bind_notifier_block);
 	panic_blink = i8042_panic_blink;
 
 	return 0;
 
+err_free_device:
+	platform_device_put(i8042_platform_device);
+err_unregister_driver:
+	platform_driver_unregister(&i8042_driver);
  err_platform_exit:
 	i8042_platform_exit();
 	return err;
-- 
2.34.1

[PATCH 5.15 02/73] Input: i8042 - enable deferred probe quirk for ASUS UM325UA

[Greg Kroah-Hartman]

From: Samuel Čavoj <samuel@cavoj.net>

[ Upstream commit 44ee250aeeabb28b52a10397ac17ffb8bfe94839 ]

The ASUS UM325UA suffers from the same issue as the ASUS UX425UA, which
is a very similar laptop. The i8042 device is not usable immediately
after boot and fails to initialize, requiring a deferred retry.

Enable the deferred probe quirk for the UM325UA.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1190256
Signed-off-by: Samuel Čavoj <samuel@cavoj.net>
Link: https://lore.kernel.org/r/20211204015615.232948-1-samuel@cavoj.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/serio/i8042-x86ia64io.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 1acc7c8449294..148a7c5fd0e22 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -1003,6 +1003,13 @@ static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA"),
 		},
 	},
+	{
+		/* ASUS ZenBook UM325UA */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UA_UM325UA"),
+		},
+	},
 	{ }
 };
 
-- 
2.34.1

[PATCH 5.15 03/73] tomoyo: Check exceeded quota early in tomoyo_domain_quota_is_ok().

[Greg Kroah-Hartman]

From: Dmitry Vyukov <dvyukov@google.com>

[ Upstream commit 04e57a2d952bbd34bc45744e72be3eecdc344294 ]

If tomoyo is used in a testing/fuzzing environment in learning mode,
for lots of domains the quota will be exceeded and stay exceeded
for prolonged periods of time. In such cases it's pointless (and slow)
to walk the whole acl list again and again just to rediscover that
the quota is exceeded. We already have the TOMOYO_DIF_QUOTA_WARNED flag
that notes the overflow condition. Check it early to avoid the slowdown.

[penguin-kernel]
This patch causes a user visible change that the learning mode will not be
automatically resumed after the quota is increased. To resume the learning
mode, administrator will need to explicitly clear TOMOYO_DIF_QUOTA_WARNED
flag after increasing the quota. But I think that this change is generally
preferable, for administrator likely wants to optimize the acl list for
that domain before increasing the quota, or that domain likely hits the
quota again. Therefore, don't try to care to clear TOMOYO_DIF_QUOTA_WARNED
flag automatically when the quota for that domain changed.

Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/tomoyo/util.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index 1da2e3722b126..af8cd2af3466d 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -1051,6 +1051,8 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 		return false;
 	if (!domain)
 		return true;
+	if (READ_ONCE(domain->flags[TOMOYO_DIF_QUOTA_WARNED]))
+		return false;
 	list_for_each_entry_rcu(ptr, &domain->acl_info_list, list,
 				srcu_read_lock_held(&tomoyo_ss)) {
 		u16 perm;
@@ -1096,14 +1098,12 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 	if (count < tomoyo_profile(domain->ns, domain->profile)->
 	    pref[TOMOYO_PREF_MAX_LEARNING_ENTRY])
 		return true;
-	if (!domain->flags[TOMOYO_DIF_QUOTA_WARNED]) {
-		domain->flags[TOMOYO_DIF_QUOTA_WARNED] = true;
-		/* r->granted = false; */
-		tomoyo_write_log(r, "%s", tomoyo_dif[TOMOYO_DIF_QUOTA_WARNED]);
+	WRITE_ONCE(domain->flags[TOMOYO_DIF_QUOTA_WARNED], true);
+	/* r->granted = false; */
+	tomoyo_write_log(r, "%s", tomoyo_dif[TOMOYO_DIF_QUOTA_WARNED]);
 #ifndef CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING
-		pr_warn("WARNING: Domain '%s' has too many ACLs to hold. Stopped learning mode.\n",
-			domain->domainname->name);
+	pr_warn("WARNING: Domain '%s' has too many ACLs to hold. Stopped learning mode.\n",
+		domain->domainname->name);
 #endif
-	}
 	return false;
 }
-- 
2.34.1

[PATCH 5.15 04/73] tomoyo: use hwight16() in tomoyo_domain_quota_is_ok()

[Greg Kroah-Hartman]

From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

[ Upstream commit f702e1107601230eec707739038a89018ea3468d ]

hwight16() is much faster. While we are at it, no need to include
"perm =" part into data_race() macro, for perm is a local variable
that cannot be accessed by other threads.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/tomoyo/util.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index af8cd2af3466d..6799b1122c9d8 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -1056,7 +1056,6 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 	list_for_each_entry_rcu(ptr, &domain->acl_info_list, list,
 				srcu_read_lock_held(&tomoyo_ss)) {
 		u16 perm;
-		u8 i;
 
 		if (ptr->is_deleted)
 			continue;
@@ -1067,23 +1066,23 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 		 */
 		switch (ptr->type) {
 		case TOMOYO_TYPE_PATH_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_path_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_path_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_PATH2_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_path2_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_path2_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_PATH_NUMBER_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_path_number_acl, head)
+			perm = data_race(container_of(ptr, struct tomoyo_path_number_acl, head)
 				  ->perm);
 			break;
 		case TOMOYO_TYPE_MKDEV_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_mkdev_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_mkdev_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_INET_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_inet_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_inet_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_UNIX_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_unix_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_unix_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_MANUAL_TASK_ACL:
 			perm = 0;
@@ -1091,9 +1090,7 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 		default:
 			perm = 1;
 		}
-		for (i = 0; i < 16; i++)
-			if (perm & (1 << i))
-				count++;
+		count += hweight16(perm);
 	}
 	if (count < tomoyo_profile(domain->ns, domain->profile)->
 	    pref[TOMOYO_PREF_MAX_LEARNING_ENTRY])
-- 
2.34.1

[PATCH 5.15 05/73] net/sched: Extend qdisc control block with tc control block

[Greg Kroah-Hartman]

From: Paul Blakey <paulb@nvidia.com>

[ Upstream commit ec624fe740b416fb68d536b37fb8eef46f90b5c2 ]

BPF layer extends the qdisc control block via struct bpf_skb_data_end
and because of that there is no more room to add variables to the
qdisc layer control block without going over the skb->cb size.

Extend the qdisc control block with a tc control block,
and move all tc related variables to there as a pre-step for
extending the tc control block with additional members.

Signed-off-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/pkt_sched.h   | 15 +++++++++++++++
 include/net/sch_generic.h |  2 --
 net/core/dev.c            |  8 ++++----
 net/sched/act_ct.c        | 14 +++++++-------
 net/sched/cls_api.c       |  6 ++++--
 net/sched/cls_flower.c    |  3 ++-
 net/sched/sch_frag.c      |  3 ++-
 7 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index bf79f3a890af2..05f18e81f3e87 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -193,4 +193,19 @@ static inline void skb_txtime_consumed(struct sk_buff *skb)
 	skb->tstamp = ktime_set(0, 0);
 }
 
+struct tc_skb_cb {
+	struct qdisc_skb_cb qdisc_cb;
+
+	u16 mru;
+	bool post_ct;
+};
+
+static inline struct tc_skb_cb *tc_skb_cb(const struct sk_buff *skb)
+{
+	struct tc_skb_cb *cb = (struct tc_skb_cb *)skb->cb;
+
+	BUILD_BUG_ON(sizeof(*cb) > sizeof_field(struct sk_buff, cb));
+	return cb;
+}
+
 #endif
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 8c2d611639fca..6e7cd00333577 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -440,8 +440,6 @@ struct qdisc_skb_cb {
 	};
 #define QDISC_CB_PRIV_LEN 20
 	unsigned char		data[QDISC_CB_PRIV_LEN];
-	u16			mru;
-	bool			post_ct;
 };
 
 typedef void tcf_chain_head_change_t(struct tcf_proto *tp_head, void *priv);
diff --git a/net/core/dev.c b/net/core/dev.c
index 91f53eeb0e79f..e0878a500aa92 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3934,8 +3934,8 @@ sch_handle_egress(struct sk_buff *skb, int *ret, struct net_device *dev)
 		return skb;
 
 	/* qdisc_skb_cb(skb)->pkt_len was already set by the caller. */
-	qdisc_skb_cb(skb)->mru = 0;
-	qdisc_skb_cb(skb)->post_ct = false;
+	tc_skb_cb(skb)->mru = 0;
+	tc_skb_cb(skb)->post_ct = false;
 	mini_qdisc_bstats_cpu_update(miniq, skb);
 
 	switch (tcf_classify(skb, miniq->block, miniq->filter_list, &cl_res, false)) {
@@ -5088,8 +5088,8 @@ sch_handle_ingress(struct sk_buff *skb, struct packet_type **pt_prev, int *ret,
 	}
 
 	qdisc_skb_cb(skb)->pkt_len = skb->len;
-	qdisc_skb_cb(skb)->mru = 0;
-	qdisc_skb_cb(skb)->post_ct = false;
+	tc_skb_cb(skb)->mru = 0;
+	tc_skb_cb(skb)->post_ct = false;
 	skb->tc_at_ingress = 1;
 	mini_qdisc_bstats_cpu_update(miniq, skb);
 
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index 90866ae45573a..98e248b9c0b17 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -690,10 +690,10 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
 				   u8 family, u16 zone, bool *defrag)
 {
 	enum ip_conntrack_info ctinfo;
-	struct qdisc_skb_cb cb;
 	struct nf_conn *ct;
 	int err = 0;
 	bool frag;
+	u16 mru;
 
 	/* Previously seen (loopback)? Ignore. */
 	ct = nf_ct_get(skb, &ctinfo);
@@ -708,7 +708,7 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
 		return err;
 
 	skb_get(skb);
-	cb = *qdisc_skb_cb(skb);
+	mru = tc_skb_cb(skb)->mru;
 
 	if (family == NFPROTO_IPV4) {
 		enum ip_defrag_users user = IP_DEFRAG_CONNTRACK_IN + zone;
@@ -722,7 +722,7 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
 
 		if (!err) {
 			*defrag = true;
-			cb.mru = IPCB(skb)->frag_max_size;
+			mru = IPCB(skb)->frag_max_size;
 		}
 	} else { /* NFPROTO_IPV6 */
 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
@@ -735,7 +735,7 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
 
 		if (!err) {
 			*defrag = true;
-			cb.mru = IP6CB(skb)->frag_max_size;
+			mru = IP6CB(skb)->frag_max_size;
 		}
 #else
 		err = -EOPNOTSUPP;
@@ -744,7 +744,7 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
 	}
 
 	if (err != -EINPROGRESS)
-		*qdisc_skb_cb(skb) = cb;
+		tc_skb_cb(skb)->mru = mru;
 	skb_clear_hash(skb);
 	skb->ignore_df = 1;
 	return err;
@@ -963,7 +963,7 @@ static int tcf_ct_act(struct sk_buff *skb, const struct tc_action *a,
 	tcf_action_update_bstats(&c->common, skb);
 
 	if (clear) {
-		qdisc_skb_cb(skb)->post_ct = false;
+		tc_skb_cb(skb)->post_ct = false;
 		ct = nf_ct_get(skb, &ctinfo);
 		if (ct) {
 			nf_conntrack_put(&ct->ct_general);
@@ -1048,7 +1048,7 @@ do_nat:
 out_push:
 	skb_push_rcsum(skb, nh_ofs);
 
-	qdisc_skb_cb(skb)->post_ct = true;
+	tc_skb_cb(skb)->post_ct = true;
 out_clear:
 	if (defrag)
 		qdisc_skb_cb(skb)->pkt_len = skb->len;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index e54f0a42270c1..ff8a9383bf1c4 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1617,12 +1617,14 @@ int tcf_classify(struct sk_buff *skb,
 
 	/* If we missed on some chain */
 	if (ret == TC_ACT_UNSPEC && last_executed_chain) {
+		struct tc_skb_cb *cb = tc_skb_cb(skb);
+
 		ext = tc_skb_ext_alloc(skb);
 		if (WARN_ON_ONCE(!ext))
 			return TC_ACT_SHOT;
 		ext->chain = last_executed_chain;
-		ext->mru = qdisc_skb_cb(skb)->mru;
-		ext->post_ct = qdisc_skb_cb(skb)->post_ct;
+		ext->mru = cb->mru;
+		ext->post_ct = cb->post_ct;
 	}
 
 	return ret;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index eb6345a027e13..161bd91c8c6b0 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -19,6 +19,7 @@
 
 #include <net/sch_generic.h>
 #include <net/pkt_cls.h>
+#include <net/pkt_sched.h>
 #include <net/ip.h>
 #include <net/flow_dissector.h>
 #include <net/geneve.h>
@@ -309,7 +310,7 @@ static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
 		       struct tcf_result *res)
 {
 	struct cls_fl_head *head = rcu_dereference_bh(tp->root);
-	bool post_ct = qdisc_skb_cb(skb)->post_ct;
+	bool post_ct = tc_skb_cb(skb)->post_ct;
 	struct fl_flow_key skb_key;
 	struct fl_flow_mask *mask;
 	struct cls_fl_filter *f;
diff --git a/net/sched/sch_frag.c b/net/sched/sch_frag.c
index 8c06381391d6f..5ded4c8672a64 100644
--- a/net/sched/sch_frag.c
+++ b/net/sched/sch_frag.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
 #include <net/netlink.h>
 #include <net/sch_generic.h>
+#include <net/pkt_sched.h>
 #include <net/dst.h>
 #include <net/ip.h>
 #include <net/ip6_fib.h>
@@ -137,7 +138,7 @@ err:
 
 int sch_frag_xmit_hook(struct sk_buff *skb, int (*xmit)(struct sk_buff *skb))
 {
-	u16 mru = qdisc_skb_cb(skb)->mru;
+	u16 mru = tc_skb_cb(skb)->mru;
 	int err;
 
 	if (mru && skb->len > mru + skb->dev->hard_header_len)
-- 
2.34.1

[PATCH 5.15 06/73] parisc: Clear stale IIR value on instruction access rights trap

[Greg Kroah-Hartman]

From: Helge Deller <deller@gmx.de>

[ Upstream commit 484730e5862f6b872dca13840bed40fd7c60fa26 ]

When a trap 7 (Instruction access rights) occurs, this means the CPU
couldn't execute an instruction due to missing execute permissions on
the memory region.  In this case it seems the CPU didn't even fetched
the instruction from memory and thus did not store it in the cr19 (IIR)
register before calling the trap handler. So, the trap handler will find
some random old stale value in cr19.

This patch simply overwrites the stale IIR value with a constant magic
"bad food" value (0xbaadf00d), in the hope people don't start to try to
understand the various random IIR values in trap 7 dumps.

Noticed-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/kernel/traps.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 747c328fb8862..197cb8480350c 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -729,6 +729,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 			}
 			mmap_read_unlock(current->mm);
 		}
+		/* CPU could not fetch instruction, so clear stale IIR value. */
+		regs->iir = 0xbaadf00d;
 		fallthrough;
 	case 27: 
 		/* Data memory protection ID trap */
-- 
2.34.1

[PATCH 5.15 07/73] platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 804034c4ffc502795cea9b3867acb2ec7fad99ba ]

The devm_ioremap() function returns NULL on error, it doesn't return
error pointers. Also according to doc of device_property_read_u64_array,
values in info array are properties of device or NULL.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20211210070753.10761-1-linmq006@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/mellanox/mlxbf-pmc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c
index 04bc3b50aa7a4..65b4a819f1bdf 100644
--- a/drivers/platform/mellanox/mlxbf-pmc.c
+++ b/drivers/platform/mellanox/mlxbf-pmc.c
@@ -1374,8 +1374,8 @@ static int mlxbf_pmc_map_counters(struct device *dev)
 		pmc->block[i].counters = info[2];
 		pmc->block[i].type = info[3];
 
-		if (IS_ERR(pmc->block[i].mmio_base))
-			return PTR_ERR(pmc->block[i].mmio_base);
+		if (!pmc->block[i].mmio_base)
+			return -ENOMEM;
 
 		ret = mlxbf_pmc_create_groups(dev, i);
 		if (ret)
-- 
2.34.1

[PATCH 5.15 08/73] platform/x86: apple-gmux: use resource_size() with res

[Greg Kroah-Hartman]

From: Wang Qing <wangqing@vivo.com>

[ Upstream commit eb66fb03a727cde0ab9b1a3858de55c26f3007da ]

This should be (res->end - res->start + 1) here actually,
use resource_size() derectly.

Signed-off-by: Wang Qing <wangqing@vivo.com>
Link: https://lore.kernel.org/r/1639484316-75873-1-git-send-email-wangqing@vivo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/apple-gmux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 9aae45a452002..57553f9b4d1dc 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -625,7 +625,7 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 	}
 
 	gmux_data->iostart = res->start;
-	gmux_data->iolen = res->end - res->start;
+	gmux_data->iolen = resource_size(res);
 
 	if (gmux_data->iolen < GMUX_MIN_IO_LEN) {
 		pr_err("gmux I/O region too small (%lu < %u)\n",
-- 
2.34.1

[PATCH 5.15 09/73] memblock: fix memblock_phys_alloc() section mismatch error

[Greg Kroah-Hartman]

From: Jackie Liu <liuyun01@kylinos.cn>

[ Upstream commit d7f55471db2719629f773c2d6b5742a69595bfd3 ]

Fix modpost Section mismatch error in memblock_phys_alloc()

[...]
WARNING: modpost: vmlinux.o(.text.unlikely+0x1dcc): Section mismatch in reference
from the function memblock_phys_alloc() to the function .init.text:memblock_phys_alloc_range()
The function memblock_phys_alloc() references
the function __init memblock_phys_alloc_range().
This is often because memblock_phys_alloc lacks a __init
annotation or the annotation of memblock_phys_alloc_range is wrong.

ERROR: modpost: Section mismatches detected.
Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
[...]

memblock_phys_alloc() is a one-line wrapper, make it __always_inline to
avoid these section mismatches.

Reported-by: k2ci <kernel-bot@kylinos.cn>
Suggested-by: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
[rppt: slightly massaged changelog ]
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20211217020754.2874872-1-liu.yun@linux.dev
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/memblock.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 34de69b3b8bad..5df38332e4139 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -388,8 +388,8 @@ phys_addr_t memblock_alloc_range_nid(phys_addr_t size,
 				      phys_addr_t end, int nid, bool exact_nid);
 phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
 
-static inline phys_addr_t memblock_phys_alloc(phys_addr_t size,
-					      phys_addr_t align)
+static __always_inline phys_addr_t memblock_phys_alloc(phys_addr_t size,
+						       phys_addr_t align)
 {
 	return memblock_phys_alloc_range(size, align, 0,
 					 MEMBLOCK_ALLOC_ACCESSIBLE);
-- 
2.34.1

[PATCH 5.15 10/73] ALSA: hda: intel-sdw-acpi: harden detection of controller

[Greg Kroah-Hartman]

From: Libin Yang <libin.yang@intel.com>

[ Upstream commit 385f287f9853da402d94278e59f594501c1d1dad ]

The existing code currently sets a pointer to an ACPI handle before
checking that it's actually a SoundWire controller. This can lead to
issues where the graph walk continues and eventually fails, but the
pointer was set already.

This patch changes the logic so that the information provided to
the caller is set when a controller is found.

Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20211221010817.23636-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-sdw-acpi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/hda/intel-sdw-acpi.c b/sound/hda/intel-sdw-acpi.c
index c0123bc31c0dd..ba8a872a29010 100644
--- a/sound/hda/intel-sdw-acpi.c
+++ b/sound/hda/intel-sdw-acpi.c
@@ -132,8 +132,6 @@ static acpi_status sdw_intel_acpi_cb(acpi_handle handle, u32 level,
 		return AE_NOT_FOUND;
 	}
 
-	info->handle = handle;
-
 	/*
 	 * On some Intel platforms, multiple children of the HDAS
 	 * device can be found, but only one of them is the SoundWire
@@ -144,6 +142,9 @@ static acpi_status sdw_intel_acpi_cb(acpi_handle handle, u32 level,
 	if (FIELD_GET(GENMASK(31, 28), adr) != SDW_LINK_TYPE)
 		return AE_OK; /* keep going */
 
+	/* found the correct SoundWire controller */
+	info->handle = handle;
+
 	/* device found, stop namespace walk */
 	return AE_CTRL_TERMINATE;
 }
-- 
2.34.1

[PATCH 5.15 11/73] ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2

[Greg Kroah-Hartman]

From: Libin Yang <libin.yang@intel.com>

[ Upstream commit 78ea40efb48e978756db2ce45fcfa55bac056b91 ]

In the HDAS ACPI scope, the SoundWire may not be the direct child of HDAS.
It needs to go through the ACPI table at max depth of 2 to find the
SoundWire device from HDAS.

Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20211221010817.23636-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-sdw-acpi.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/hda/intel-sdw-acpi.c b/sound/hda/intel-sdw-acpi.c
index ba8a872a29010..b7758dbe23714 100644
--- a/sound/hda/intel-sdw-acpi.c
+++ b/sound/hda/intel-sdw-acpi.c
@@ -165,8 +165,14 @@ int sdw_intel_acpi_scan(acpi_handle *parent_handle,
 	acpi_status status;
 
 	info->handle = NULL;
+	/*
+	 * In the HDAS ACPI scope, 'SNDW' may be either the child of
+	 * 'HDAS' or the grandchild of 'HDAS'. So let's go through
+	 * the ACPI from 'HDAS' at max depth of 2 to find the 'SNDW'
+	 * device.
+	 */
 	status = acpi_walk_namespace(ACPI_TYPE_DEVICE,
-				     parent_handle, 1,
+				     parent_handle, 2,
 				     sdw_intel_acpi_cb,
 				     NULL, info, NULL);
 	if (ACPI_FAILURE(status) || info->handle == NULL)
-- 
2.34.1

[PATCH 5.15 12/73] recordmcount.pl: fix typo in s390 mcount regex

[Greg Kroah-Hartman]

From: Heiko Carstens <hca@linux.ibm.com>

commit 4eb1782eaa9fa1c224ad1fa0d13a9f09c3ab2d80 upstream.

Commit 85bf17b28f97 ("recordmcount.pl: look for jgnop instruction as well
as bcrl on s390") added a new alternative mnemonic for the existing brcl
instruction. This is required for the combination old gcc version (pre 9.0)
and binutils since version 2.37.
However at the same time this commit introduced a typo, replacing brcl with
bcrl. As a result no mcount locations are detected anymore with old gcc
versions (pre 9.0) and binutils before version 2.37.
Fix this by using the correct mnemonic again.

Reported-by: Miroslav Benes <mbenes@suse.cz>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: <stable@vger.kernel.org>
Fixes: 85bf17b28f97 ("recordmcount.pl: look for jgnop instruction as well as bcrl on s390")
Link: https://lore.kernel.org/r/alpine.LSU.2.21.2112230949520.19849@pobox.suse.cz
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/recordmcount.pl |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -219,7 +219,7 @@ if ($arch eq "x86_64") {
 
 } elsif ($arch eq "s390" && $bits == 64) {
     if ($cc =~ /-DCC_USING_HOTPATCH/) {
-	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*c0 04 00 00 00 00\\s*(bcrl\\s*0,|jgnop\\s*)[0-9a-f]+ <([^\+]*)>\$";
+	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*c0 04 00 00 00 00\\s*(brcl\\s*0,|jgnop\\s*)[0-9a-f]+ <([^\+]*)>\$";
 	$mcount_adjust = 0;
     }
     $alignment = 8;

[PATCH 5.15 13/73] powerpc/ptdump: Fix DEBUG_WX since generic ptdump conversion

[Greg Kroah-Hartman]

From: Michael Ellerman <mpe@ellerman.id.au>

commit 8d84fca4375e3c35dadc16b8c7eee6821b2a575c upstream.

In note_prot_wx() we bail out without reporting anything if
CONFIG_PPC_DEBUG_WX is disabled.

But CONFIG_PPC_DEBUG_WX was removed in the conversion to generic ptdump,
we now need to use CONFIG_DEBUG_WX instead.

Fixes: e084728393a5 ("powerpc/ptdump: Convert powerpc to GENERIC_PTDUMP")
Cc: stable@vger.kernel.org # v5.15+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/20211203124112.2912562-1-mpe@ellerman.id.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/mm/ptdump/ptdump.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/mm/ptdump/ptdump.c
+++ b/arch/powerpc/mm/ptdump/ptdump.c
@@ -183,7 +183,7 @@ static void note_prot_wx(struct pg_state
 {
 	pte_t pte = __pte(st->current_flags);
 
-	if (!IS_ENABLED(CONFIG_PPC_DEBUG_WX) || !st->check_wx)
+	if (!IS_ENABLED(CONFIG_DEBUG_WX) || !st->check_wx)
 		return;
 
 	if (!pte_write(pte) || !pte_exec(pte))

[PATCH 5.15 14/73] efi: Move efifb_setup_from_dmi() prototype from arch headers

[Greg Kroah-Hartman]

From: Javier Martinez Canillas <javierm@redhat.com>

commit 4bc5e64e6cf37007e436970024e5998ee0935651 upstream.

Commit 8633ef82f101 ("drivers/firmware: consolidate EFI framebuffer setup
for all arches") made the Generic System Framebuffers (sysfb) driver able
to be built on non-x86 architectures.

But it left the efifb_setup_from_dmi() function prototype declaration in
the architecture specific headers. This could lead to the following
compiler warning as reported by the kernel test robot:

   drivers/firmware/efi/sysfb_efi.c:70:6: warning: no previous prototype for function 'efifb_setup_from_dmi' [-Wmissing-prototypes]
   void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
        ^
   drivers/firmware/efi/sysfb_efi.c:70:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void efifb_setup_from_dmi(struct screen_info *si, const char *opt)

Fixes: 8633ef82f101 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
Reported-by: kernel test robot <lkp@intel.com>
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20211126001333.555514-1-javierm@redhat.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/efi.h   |    1 -
 arch/arm64/include/asm/efi.h |    1 -
 arch/riscv/include/asm/efi.h |    1 -
 arch/x86/include/asm/efi.h   |    2 --
 include/linux/efi.h          |    6 ++++++
 5 files changed, 6 insertions(+), 5 deletions(-)

--- a/arch/arm/include/asm/efi.h
+++ b/arch/arm/include/asm/efi.h
@@ -17,7 +17,6 @@
 
 #ifdef CONFIG_EFI
 void efi_init(void);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
 
 int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);
 int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -14,7 +14,6 @@
 
 #ifdef CONFIG_EFI
 extern void efi_init(void);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
 #else
 #define efi_init()
 #endif
--- a/arch/riscv/include/asm/efi.h
+++ b/arch/riscv/include/asm/efi.h
@@ -13,7 +13,6 @@
 
 #ifdef CONFIG_EFI
 extern void efi_init(void);
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
 #else
 #define efi_init()
 #endif
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -197,8 +197,6 @@ static inline bool efi_runtime_supported
 
 extern void parse_efi_setup(u64 phys_addr, u32 data_len);
 
-extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-
 extern void efi_thunk_runtime_setup(void);
 efi_status_t efi_set_virtual_address_map(unsigned long memory_map_size,
 					 unsigned long descriptor_size,
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1282,4 +1282,10 @@ static inline struct efi_mokvar_table_en
 }
 #endif
 
+#ifdef CONFIG_SYSFB
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+#else
+static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { }
+#endif
+
 #endif /* _LINUX_EFI_H */

[PATCH 5.15 15/73] selinux: initialize proto variable in selinux_ip_postroute_compat()

[Greg Kroah-Hartman]

From: Tom Rix <trix@redhat.com>

commit 732bc2ff080c447f8524f40c970c481f5da6eed3 upstream.

Clang static analysis reports this warning

hooks.c:5765:6: warning: 4th function call argument is an uninitialized
                value
        if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

selinux_parse_skb() can return ok without setting proto.  The later call
to selinux_xfrm_postroute_last() does an early check of proto and can
return ok if the garbage proto value matches.  So initialize proto.

Cc: stable@vger.kernel.org
Fixes: eef9b41622f2 ("selinux: cleanup selinux_xfrm_sock_rcv_skb() and selinux_xfrm_postroute_last()")
Signed-off-by: Tom Rix <trix@redhat.com>
[PM: typo/spelling and checkpatch.pl description fixes]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/selinux/hooks.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5812,7 +5812,7 @@ static unsigned int selinux_ip_postroute
 	struct common_audit_data ad;
 	struct lsm_network_audit net = {0,};
 	char *addrp;
-	u8 proto;
+	u8 proto = 0;
 
 	if (sk == NULL)
 		return NF_ACCEPT;

[PATCH 5.15 16/73] scsi: lpfc: Terminate string in lpfc_debugfs_nvmeio_trc_write()

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 9020be114a47bf7ff33e179b3bb0016b91a098e6 ]

The "mybuf" string comes from the user, so we need to ensure that it is NUL
terminated.

Link: https://lore.kernel.org/r/20211214070527.GA27934@kili
Fixes: bd2cdd5e400f ("scsi: lpfc: NVME Initiator: Add debugfs support")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc_debugfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index bd6d459afce54..08b2e85dcd7d8 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -2954,8 +2954,8 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
 	char mybuf[64];
 	char *pbuf;
 
-	if (nbytes > 64)
-		nbytes = 64;
+	if (nbytes > 63)
+		nbytes = 63;
 
 	memset(mybuf, 0, sizeof(mybuf));
 
-- 
2.34.1

[PATCH 5.15 17/73] net/mlx5: DR, Fix NULL vs IS_ERR checking in dr_domain_init_resources

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 6b8b42585886c59a008015083282aae434349094 ]

The mlx5_get_uars_page() function  returns error pointers.
Using IS_ERR() to check the return value to fix this.

Fixes: 4ec9e7b02697 ("net/mlx5: DR, Expose steering domain functionality")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
index 0fe159809ba15..ea1b8ca5bf3aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
@@ -2,6 +2,7 @@
 /* Copyright (c) 2019 Mellanox Technologies. */
 
 #include <linux/mlx5/eswitch.h>
+#include <linux/err.h>
 #include "dr_types.h"
 
 #define DR_DOMAIN_SW_STEERING_SUPPORTED(dmn, dmn_type)	\
@@ -75,9 +76,9 @@ static int dr_domain_init_resources(struct mlx5dr_domain *dmn)
 	}
 
 	dmn->uar = mlx5_get_uars_page(dmn->mdev);
-	if (!dmn->uar) {
+	if (IS_ERR(dmn->uar)) {
 		mlx5dr_err(dmn, "Couldn't allocate UAR\n");
-		ret = -ENOMEM;
+		ret = PTR_ERR(dmn->uar);
 		goto clean_pd;
 	}
 
-- 
2.34.1

[PATCH 5.15 18/73] net/mlx5: Fix error print in case of IRQ request failed

[Greg Kroah-Hartman]

From: Shay Drory <shayd@nvidia.com>

[ Upstream commit aa968f922039706f6d13e8870b49e424d0a8d9ad ]

In case IRQ layer failed to find or to request irq, the driver is
printing the first cpu of the provided affinity as part of the error
print. Empty affinity is a valid input for the IRQ layer, and it is
an error to call cpumask_first() on empty affinity.

Remove the first cpu print from the error message.

Fixes: c36326d38d93 ("net/mlx5: Round-Robin EQs over IRQs")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
index 763c83a023809..11f3649fdaab1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
@@ -346,8 +346,8 @@ static struct mlx5_irq *irq_pool_request_affinity(struct mlx5_irq_pool *pool,
 	new_irq = irq_pool_create_irq(pool, affinity);
 	if (IS_ERR(new_irq)) {
 		if (!least_loaded_irq) {
-			mlx5_core_err(pool->dev, "Didn't find IRQ for cpu = %u\n",
-				      cpumask_first(affinity));
+			mlx5_core_err(pool->dev, "Didn't find a matching IRQ. err = %ld\n",
+				      PTR_ERR(new_irq));
 			mutex_unlock(&pool->lock);
 			return new_irq;
 		}
-- 
2.34.1

[PATCH 5.15 19/73] net/mlx5: Fix SF health recovery flow

[Greg Kroah-Hartman]

From: Moshe Shemesh <moshe@nvidia.com>

[ Upstream commit 33de865f7bce3968676e43b0182af0a2dd359dae ]

SF do not directly control the PCI device. During recovery flow SF
should not be allowed to do pci disable or pci reset, its PF will do it.

It fixes the following kernel trace:
mlx5_core.sf mlx5_core.sf.25: mlx5_health_try_recover:387:(pid 40948): starting health recovery flow
mlx5_core 0000:03:00.0: mlx5_pci_slot_reset was called
mlx5_core 0000:03:00.0: wait vital counter value 0xab175 after 1 iterations
mlx5_core.sf mlx5_core.sf.25: firmware version: 24.32.532
mlx5_core.sf mlx5_core.sf.23: mlx5_health_try_recover:387:(pid 40946): starting health recovery flow
mlx5_core 0000:03:00.0: mlx5_pci_slot_reset was called
mlx5_core 0000:03:00.0: wait vital counter value 0xab193 after 1 iterations
mlx5_core.sf mlx5_core.sf.23: firmware version: 24.32.532
mlx5_core.sf mlx5_core.sf.25: mlx5_cmd_check:813:(pid 40948): ENABLE_HCA(0x104) op_mod(0x0) failed,
status bad resource state(0x9), syndrome (0x658908)
mlx5_core.sf mlx5_core.sf.25: mlx5_function_setup:1292:(pid 40948): enable hca failed
mlx5_core.sf mlx5_core.sf.25: mlx5_health_try_recover:389:(pid 40948): health recovery failed

Fixes: 1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 92b08fa07efae..92b01858d7f3e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1775,12 +1775,13 @@ void mlx5_disable_device(struct mlx5_core_dev *dev)
 
 int mlx5_recover_device(struct mlx5_core_dev *dev)
 {
-	int ret = -EIO;
+	if (!mlx5_core_is_sf(dev)) {
+		mlx5_pci_disable_device(dev);
+		if (mlx5_pci_slot_reset(dev->pdev) != PCI_ERS_RESULT_RECOVERED)
+			return -EIO;
+	}
 
-	mlx5_pci_disable_device(dev);
-	if (mlx5_pci_slot_reset(dev->pdev) == PCI_ERS_RESULT_RECOVERED)
-		ret = mlx5_load_one(dev);
-	return ret;
+	return mlx5_load_one(dev);
 }
 
 static struct pci_driver mlx5_core_driver = {
-- 
2.34.1

[PATCH 5.15 20/73] net/mlx5: Fix tc max supported prio for nic mode

[Greg Kroah-Hartman]

From: Chris Mi <cmi@nvidia.com>

[ Upstream commit d671e109bd8548d067b27e39e183a484430bf102 ]

Only prio 1 is supported if firmware doesn't support ignore flow
level for nic mode. The offending commit removed the check wrongly.
Add it back.

Fixes: 9a99c8f1253a ("net/mlx5e: E-Switch, Offload all chain 0 priorities when modify header and forward action is not supported")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c
index 97e5845b4cfdd..d5e47630e2849 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c
@@ -121,6 +121,9 @@ u32 mlx5_chains_get_nf_ft_chain(struct mlx5_fs_chains *chains)
 
 u32 mlx5_chains_get_prio_range(struct mlx5_fs_chains *chains)
 {
+	if (!mlx5_chains_prios_supported(chains))
+		return 1;
+
 	if (mlx5_chains_ignore_flow_level_supported(chains))
 		return UINT_MAX;
 
-- 
2.34.1

[PATCH 5.15 21/73] net/mlx5e: Wrap the tx reporter dump callback to extract the sq

[Greg Kroah-Hartman]

From: Amir Tzin <amirtz@nvidia.com>

[ Upstream commit 918fc3855a6507a200e9cf22c20be852c0982687 ]

Function mlx5e_tx_reporter_dump_sq() casts its void * argument to struct
mlx5e_txqsq *, but in TX-timeout-recovery flow the argument is actually
of type struct mlx5e_tx_timeout_ctx *.

 mlx5_core 0000:08:00.1 enp8s0f1: TX timeout detected
 mlx5_core 0000:08:00.1 enp8s0f1: TX timeout on queue: 1, SQ: 0x11ec, CQ: 0x146d, SQ Cons: 0x0 SQ Prod: 0x1, usecs since last trans: 21565000
 BUG: stack guard page was hit at 0000000093f1a2de (stack is 00000000b66ea0dc..000000004d932dae)
 kernel stack overflow (page fault): 0000 [#1] SMP NOPTI
 CPU: 5 PID: 95 Comm: kworker/u20:1 Tainted: G W OE 5.13.0_mlnx #1
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 Workqueue: mlx5e mlx5e_tx_timeout_work [mlx5_core]
 RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180
 [mlx5_core]
 Call Trace:
 mlx5e_tx_reporter_dump+0x43/0x1c0 [mlx5_core]
 devlink_health_do_dump.part.91+0x71/0xd0
 devlink_health_report+0x157/0x1b0
 mlx5e_reporter_tx_timeout+0xb9/0xf0 [mlx5_core]
 ? mlx5e_tx_reporter_err_cqe_recover+0x1d0/0x1d0
 [mlx5_core]
 ? mlx5e_health_queue_dump+0xd0/0xd0 [mlx5_core]
 ? update_load_avg+0x19b/0x550
 ? set_next_entity+0x72/0x80
 ? pick_next_task_fair+0x227/0x340
 ? finish_task_switch+0xa2/0x280
   mlx5e_tx_timeout_work+0x83/0xb0 [mlx5_core]
   process_one_work+0x1de/0x3a0
   worker_thread+0x2d/0x3c0
 ? process_one_work+0x3a0/0x3a0
   kthread+0x115/0x130
 ? kthread_park+0x90/0x90
   ret_from_fork+0x1f/0x30
 --[ end trace 51ccabea504edaff ]---
 RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180
 PKRU: 55555554
 Kernel panic - not syncing: Fatal exception
 Kernel Offset: disabled
 end Kernel panic - not syncing: Fatal exception

To fix this bug add a wrapper for mlx5e_tx_reporter_dump_sq() which
extracts the sq from struct mlx5e_tx_timeout_ctx and set it as the
TX-timeout-recovery flow dump callback.

Fixes: 5f29458b77d5 ("net/mlx5e: Support dump callback in TX reporter")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Amir Tzin <amirtz@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlx5/core/en/reporter_tx.c   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index bb682fd751c98..8024599994642 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -463,6 +463,14 @@ static int mlx5e_tx_reporter_dump_sq(struct mlx5e_priv *priv, struct devlink_fms
 	return mlx5e_health_fmsg_named_obj_nest_end(fmsg);
 }
 
+static int mlx5e_tx_reporter_timeout_dump(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
+					  void *ctx)
+{
+	struct mlx5e_tx_timeout_ctx *to_ctx = ctx;
+
+	return mlx5e_tx_reporter_dump_sq(priv, fmsg, to_ctx->sq);
+}
+
 static int mlx5e_tx_reporter_dump_all_sqs(struct mlx5e_priv *priv,
 					  struct devlink_fmsg *fmsg)
 {
@@ -558,7 +566,7 @@ int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq)
 	to_ctx.sq = sq;
 	err_ctx.ctx = &to_ctx;
 	err_ctx.recover = mlx5e_tx_reporter_timeout_recover;
-	err_ctx.dump = mlx5e_tx_reporter_dump_sq;
+	err_ctx.dump = mlx5e_tx_reporter_timeout_dump;
 	snprintf(err_str, sizeof(err_str),
 		 "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u",
 		 sq->ch_ix, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
-- 
2.34.1

[PATCH 5.15 22/73] net/mlx5e: Fix interoperability between XSK and ICOSQ recovery flow

[Greg Kroah-Hartman]

From: Maxim Mikityanskiy <maximmi@nvidia.com>

[ Upstream commit 17958d7cd731b977ae7d4af38d891c3a1235b5f1 ]

Both regular RQ and XSKRQ use the same ICOSQ for UMRs. When doing
recovery for the ICOSQ, don't forget to deactivate XSKRQ.

XSK can be opened and closed while channels are active, so a new mutex
prevents the ICOSQ recovery from running at the same time. The ICOSQ
recovery deactivates and reactivates XSKRQ, so any parallel change in
XSK state would break consistency. As the regular RQ is running, it's
not enough to just flush the recovery work, because it can be
rescheduled.

Fixes: be5323c8379f ("net/mlx5e: Report and recover from CQE error on ICOSQ")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h  |  2 ++
 .../ethernet/mellanox/mlx5/core/en/health.h   |  2 ++
 .../mellanox/mlx5/core/en/reporter_rx.c       | 35 ++++++++++++++++++-
 .../mellanox/mlx5/core/en/xsk/setup.c         | 16 ++++++++-
 .../net/ethernet/mellanox/mlx5/core/en_main.c |  7 ++--
 5 files changed, 58 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index c10a107a3ea53..54757117071db 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -727,6 +727,8 @@ struct mlx5e_channel {
 	DECLARE_BITMAP(state, MLX5E_CHANNEL_NUM_STATES);
 	int                        ix;
 	int                        cpu;
+	/* Sync between icosq recovery and XSK enable/disable. */
+	struct mutex               icosq_recovery_lock;
 };
 
 struct mlx5e_ptp;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index 018262d0164b3..3aaf3c2752feb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -30,6 +30,8 @@ void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv);
 void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq);
 void mlx5e_reporter_rq_cqe_err(struct mlx5e_rq *rq);
 void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq);
+void mlx5e_reporter_icosq_suspend_recovery(struct mlx5e_channel *c);
+void mlx5e_reporter_icosq_resume_recovery(struct mlx5e_channel *c);
 
 #define MLX5E_REPORTER_PER_Q_MAX_LEN 256
 #define MLX5E_REPORTER_FLUSH_TIMEOUT_MSEC 2000
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
index 0eb125316fe20..e329158fdc555 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -59,6 +59,7 @@ static void mlx5e_reset_icosq_cc_pc(struct mlx5e_icosq *icosq)
 
 static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx)
 {
+	struct mlx5e_rq *xskrq = NULL;
 	struct mlx5_core_dev *mdev;
 	struct mlx5e_icosq *icosq;
 	struct net_device *dev;
@@ -67,7 +68,13 @@ static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx)
 	int err;
 
 	icosq = ctx;
+
+	mutex_lock(&icosq->channel->icosq_recovery_lock);
+
+	/* mlx5e_close_rq cancels this work before RQ and ICOSQ are killed. */
 	rq = &icosq->channel->rq;
+	if (test_bit(MLX5E_RQ_STATE_ENABLED, &icosq->channel->xskrq.state))
+		xskrq = &icosq->channel->xskrq;
 	mdev = icosq->channel->mdev;
 	dev = icosq->channel->netdev;
 	err = mlx5_core_query_sq_state(mdev, icosq->sqn, &state);
@@ -81,6 +88,9 @@ static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx)
 		goto out;
 
 	mlx5e_deactivate_rq(rq);
+	if (xskrq)
+		mlx5e_deactivate_rq(xskrq);
+
 	err = mlx5e_wait_for_icosq_flush(icosq);
 	if (err)
 		goto out;
@@ -94,15 +104,28 @@ static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx)
 		goto out;
 
 	mlx5e_reset_icosq_cc_pc(icosq);
+
 	mlx5e_free_rx_in_progress_descs(rq);
+	if (xskrq)
+		mlx5e_free_rx_in_progress_descs(xskrq);
+
 	clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state);
 	mlx5e_activate_icosq(icosq);
-	mlx5e_activate_rq(rq);
 
+	mlx5e_activate_rq(rq);
 	rq->stats->recover++;
+
+	if (xskrq) {
+		mlx5e_activate_rq(xskrq);
+		xskrq->stats->recover++;
+	}
+
+	mutex_unlock(&icosq->channel->icosq_recovery_lock);
+
 	return 0;
 out:
 	clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state);
+	mutex_unlock(&icosq->channel->icosq_recovery_lock);
 	return err;
 }
 
@@ -703,6 +726,16 @@ void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq)
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
 }
 
+void mlx5e_reporter_icosq_suspend_recovery(struct mlx5e_channel *c)
+{
+	mutex_lock(&c->icosq_recovery_lock);
+}
+
+void mlx5e_reporter_icosq_resume_recovery(struct mlx5e_channel *c)
+{
+	mutex_unlock(&c->icosq_recovery_lock);
+}
+
 static const struct devlink_health_reporter_ops mlx5_rx_reporter_ops = {
 	.name = "rx",
 	.recover = mlx5e_rx_reporter_recover,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c
index 538bc2419bd83..8526a5fbbf0bf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/setup.c
@@ -4,6 +4,7 @@
 #include "setup.h"
 #include "en/params.h"
 #include "en/txrx.h"
+#include "en/health.h"
 
 /* It matches XDP_UMEM_MIN_CHUNK_SIZE, but as this constant is private and may
  * change unexpectedly, and mlx5e has a minimum valid stride size for striding
@@ -170,7 +171,13 @@ void mlx5e_close_xsk(struct mlx5e_channel *c)
 
 void mlx5e_activate_xsk(struct mlx5e_channel *c)
 {
+	/* ICOSQ recovery deactivates RQs. Suspend the recovery to avoid
+	 * activating XSKRQ in the middle of recovery.
+	 */
+	mlx5e_reporter_icosq_suspend_recovery(c);
 	set_bit(MLX5E_RQ_STATE_ENABLED, &c->xskrq.state);
+	mlx5e_reporter_icosq_resume_recovery(c);
+
 	/* TX queue is created active. */
 
 	spin_lock_bh(&c->async_icosq_lock);
@@ -180,6 +187,13 @@ void mlx5e_activate_xsk(struct mlx5e_channel *c)
 
 void mlx5e_deactivate_xsk(struct mlx5e_channel *c)
 {
-	mlx5e_deactivate_rq(&c->xskrq);
+	/* ICOSQ recovery may reactivate XSKRQ if clear_bit is called in the
+	 * middle of recovery. Suspend the recovery to avoid it.
+	 */
+	mlx5e_reporter_icosq_suspend_recovery(c);
+	clear_bit(MLX5E_RQ_STATE_ENABLED, &c->xskrq.state);
+	mlx5e_reporter_icosq_resume_recovery(c);
+	synchronize_net(); /* Sync with NAPI to prevent mlx5e_post_rx_wqes. */
+
 	/* TX queue is disabled on close. */
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 8cf5fbebd674b..611c8a0cbf4f0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -911,8 +911,6 @@ void mlx5e_deactivate_rq(struct mlx5e_rq *rq)
 void mlx5e_close_rq(struct mlx5e_rq *rq)
 {
 	cancel_work_sync(&rq->dim.work);
-	if (rq->icosq)
-		cancel_work_sync(&rq->icosq->recover_work);
 	cancel_work_sync(&rq->recover_work);
 	mlx5e_destroy_rq(rq);
 	mlx5e_free_rx_descs(rq);
@@ -1875,6 +1873,8 @@ static int mlx5e_open_queues(struct mlx5e_channel *c,
 	if (err)
 		goto err_close_xdpsq_cq;
 
+	mutex_init(&c->icosq_recovery_lock);
+
 	err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
 	if (err)
 		goto err_close_async_icosq;
@@ -1943,9 +1943,12 @@ static void mlx5e_close_queues(struct mlx5e_channel *c)
 	mlx5e_close_xdpsq(&c->xdpsq);
 	if (c->xdp)
 		mlx5e_close_xdpsq(&c->rq_xdpsq);
+	/* The same ICOSQ is used for UMRs for both RQ and XSKRQ. */
+	cancel_work_sync(&c->icosq.recover_work);
 	mlx5e_close_rq(&c->rq);
 	mlx5e_close_sqs(c);
 	mlx5e_close_icosq(&c->icosq);
+	mutex_destroy(&c->icosq_recovery_lock);
 	mlx5e_close_icosq(&c->async_icosq);
 	if (c->xdp)
 		mlx5e_close_cq(&c->rq_xdpsq.cq);
-- 
2.34.1

[PATCH 5.15 23/73] net/mlx5e: Fix ICOSQ recovery flow for XSK

[Greg Kroah-Hartman]

From: Maxim Mikityanskiy <maximmi@mellanox.com>

[ Upstream commit 19c4aba2d4e23997061fb11aed8a3e41334bfa14 ]

There are two ICOSQs per channel: one is needed for RX, and the other
for async operations (XSK TX, kTLS offload). Currently, the recovery
flow for both is the same, and async ICOSQ is mistakenly treated like
the regular ICOSQ.

This patch prevents running the regular ICOSQ recovery on async ICOSQ.
The purpose of async ICOSQ is to handle XSK wakeup requests and post
kTLS offload RX parameters, it has nothing to do with RQ and XSKRQ UMRs,
so the regular recovery sequence is not applicable here.

Fixes: be5323c8379f ("net/mlx5e: Report and recover from CQE error on ICOSQ")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h  |  3 --
 .../net/ethernet/mellanox/mlx5/core/en_main.c | 30 ++++++++++++++-----
 2 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 54757117071db..7204bc86e4741 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -956,9 +956,6 @@ int mlx5e_create_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param);
 void mlx5e_destroy_rq(struct mlx5e_rq *rq);
 
 struct mlx5e_sq_param;
-int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
-		     struct mlx5e_sq_param *param, struct mlx5e_icosq *sq);
-void mlx5e_close_icosq(struct mlx5e_icosq *sq);
 int mlx5e_open_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params,
 		     struct mlx5e_sq_param *param, struct xsk_buff_pool *xsk_pool,
 		     struct mlx5e_xdpsq *sq, bool is_redirect);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 611c8a0cbf4f0..685fe77de5ce4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1036,9 +1036,20 @@ static void mlx5e_icosq_err_cqe_work(struct work_struct *recover_work)
 	mlx5e_reporter_icosq_cqe_err(sq);
 }
 
+static void mlx5e_async_icosq_err_cqe_work(struct work_struct *recover_work)
+{
+	struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq,
+					      recover_work);
+
+	/* Not implemented yet. */
+
+	netdev_warn(sq->channel->netdev, "async_icosq recovery is not implemented\n");
+}
+
 static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
 			     struct mlx5e_sq_param *param,
-			     struct mlx5e_icosq *sq)
+			     struct mlx5e_icosq *sq,
+			     work_func_t recover_work_func)
 {
 	void *sqc_wq               = MLX5_ADDR_OF(sqc, param->sqc, wq);
 	struct mlx5_core_dev *mdev = c->mdev;
@@ -1059,7 +1070,7 @@ static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
 	if (err)
 		goto err_sq_wq_destroy;
 
-	INIT_WORK(&sq->recover_work, mlx5e_icosq_err_cqe_work);
+	INIT_WORK(&sq->recover_work, recover_work_func);
 
 	return 0;
 
@@ -1397,13 +1408,14 @@ void mlx5e_tx_err_cqe_work(struct work_struct *recover_work)
 	mlx5e_reporter_tx_err_cqe(sq);
 }
 
-int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
-		     struct mlx5e_sq_param *param, struct mlx5e_icosq *sq)
+static int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
+			    struct mlx5e_sq_param *param, struct mlx5e_icosq *sq,
+			    work_func_t recover_work_func)
 {
 	struct mlx5e_create_sq_param csp = {};
 	int err;
 
-	err = mlx5e_alloc_icosq(c, param, sq);
+	err = mlx5e_alloc_icosq(c, param, sq, recover_work_func);
 	if (err)
 		return err;
 
@@ -1442,7 +1454,7 @@ void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
 	synchronize_net(); /* Sync with NAPI. */
 }
 
-void mlx5e_close_icosq(struct mlx5e_icosq *sq)
+static void mlx5e_close_icosq(struct mlx5e_icosq *sq)
 {
 	struct mlx5e_channel *c = sq->channel;
 
@@ -1869,13 +1881,15 @@ static int mlx5e_open_queues(struct mlx5e_channel *c,
 
 	spin_lock_init(&c->async_icosq_lock);
 
-	err = mlx5e_open_icosq(c, params, &cparam->async_icosq, &c->async_icosq);
+	err = mlx5e_open_icosq(c, params, &cparam->async_icosq, &c->async_icosq,
+			       mlx5e_async_icosq_err_cqe_work);
 	if (err)
 		goto err_close_xdpsq_cq;
 
 	mutex_init(&c->icosq_recovery_lock);
 
-	err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
+	err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq,
+			       mlx5e_icosq_err_cqe_work);
 	if (err)
 		goto err_close_async_icosq;
 
-- 
2.34.1

[PATCH 5.15 24/73] net/mlx5e: Use tc sample stubs instead of ifdefs in source file

[Greg Kroah-Hartman]

From: Roi Dayan <roid@nvidia.com>

[ Upstream commit f3e02e479debb37777696c9f984f75152beeb56d ]

Instead of having sparse ifdefs in source files use a single
ifdef in the tc sample header file and use stubs.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/mellanox/mlx5/core/en/rep/tc.c   |  2 --
 .../mellanox/mlx5/core/en/tc/sample.h         | 27 +++++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/en_tc.c   | 12 ---------
 3 files changed, 27 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
index de03684528bbf..8451940c16ab9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -647,9 +647,7 @@ static void mlx5e_restore_skb_sample(struct mlx5e_priv *priv, struct sk_buff *sk
 			   "Failed to restore tunnel info for sampled packet\n");
 		return;
 	}
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 	mlx5e_tc_sample_skb(skb, mapped_obj);
-#endif /* CONFIG_MLX5_TC_SAMPLE */
 	mlx5_rep_tc_post_napi_receive(tc_priv);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.h
index db0146df9b303..9ef8a49d78014 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.h
@@ -19,6 +19,8 @@ struct mlx5e_sample_attr {
 	struct mlx5e_sample_flow *sample_flow;
 };
 
+#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
+
 void mlx5e_tc_sample_skb(struct sk_buff *skb, struct mlx5_mapped_obj *mapped_obj);
 
 struct mlx5_flow_handle *
@@ -38,4 +40,29 @@ mlx5e_tc_sample_init(struct mlx5_eswitch *esw, struct mlx5e_post_act *post_act);
 void
 mlx5e_tc_sample_cleanup(struct mlx5e_tc_psample *tc_psample);
 
+#else /* CONFIG_MLX5_TC_SAMPLE */
+
+static inline struct mlx5_flow_handle *
+mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample,
+			struct mlx5_flow_spec *spec,
+			struct mlx5_flow_attr *attr,
+			u32 tunnel_id)
+{ return ERR_PTR(-EOPNOTSUPP); }
+
+static inline void
+mlx5e_tc_sample_unoffload(struct mlx5e_tc_psample *tc_psample,
+			  struct mlx5_flow_handle *rule,
+			  struct mlx5_flow_attr *attr) {}
+
+static inline struct mlx5e_tc_psample *
+mlx5e_tc_sample_init(struct mlx5_eswitch *esw, struct mlx5e_post_act *post_act)
+{ return ERR_PTR(-EOPNOTSUPP); }
+
+static inline void
+mlx5e_tc_sample_cleanup(struct mlx5e_tc_psample *tc_psample) {}
+
+static inline void
+mlx5e_tc_sample_skb(struct sk_buff *skb, struct mlx5_mapped_obj *mapped_obj) {}
+
+#endif /* CONFIG_MLX5_TC_SAMPLE */
 #endif /* __MLX5_EN_TC_SAMPLE_H__ */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index e3b320b6d85b9..e7736421d1bc2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -248,7 +248,6 @@ get_ct_priv(struct mlx5e_priv *priv)
 	return priv->fs.tc.ct;
 }
 
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 static struct mlx5e_tc_psample *
 get_sample_priv(struct mlx5e_priv *priv)
 {
@@ -265,7 +264,6 @@ get_sample_priv(struct mlx5e_priv *priv)
 
 	return NULL;
 }
-#endif
 
 struct mlx5_flow_handle *
 mlx5_tc_rule_insert(struct mlx5e_priv *priv,
@@ -1148,11 +1146,9 @@ mlx5e_tc_offload_fdb_rules(struct mlx5_eswitch *esw,
 		rule = mlx5_tc_ct_flow_offload(get_ct_priv(flow->priv),
 					       flow, spec, attr,
 					       mod_hdr_acts);
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 	} else if (flow_flag_test(flow, SAMPLE)) {
 		rule = mlx5e_tc_sample_offload(get_sample_priv(flow->priv), spec, attr,
 					       mlx5e_tc_get_flow_tun_id(flow));
-#endif
 	} else {
 		rule = mlx5_eswitch_add_offloaded_rule(esw, spec, attr);
 	}
@@ -1188,12 +1184,10 @@ void mlx5e_tc_unoffload_fdb_rules(struct mlx5_eswitch *esw,
 		return;
 	}
 
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 	if (flow_flag_test(flow, SAMPLE)) {
 		mlx5e_tc_sample_unoffload(get_sample_priv(flow->priv), flow->rule[0], attr);
 		return;
 	}
-#endif
 
 	if (attr->esw_attr->split_count)
 		mlx5_eswitch_del_fwd_rule(esw, flow->rule[1], attr);
@@ -5014,9 +5008,7 @@ int mlx5e_tc_esw_init(struct rhashtable *tc_ht)
 					       MLX5_FLOW_NAMESPACE_FDB,
 					       uplink_priv->post_act);
 
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 	uplink_priv->tc_psample = mlx5e_tc_sample_init(esw, uplink_priv->post_act);
-#endif
 
 	mapping_id = mlx5_query_nic_system_image_guid(esw->dev);
 
@@ -5060,9 +5052,7 @@ err_ht_init:
 err_enc_opts_mapping:
 	mapping_destroy(uplink_priv->tunnel_mapping);
 err_tun_mapping:
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 	mlx5e_tc_sample_cleanup(uplink_priv->tc_psample);
-#endif
 	mlx5_tc_ct_clean(uplink_priv->ct_priv);
 	netdev_warn(priv->netdev,
 		    "Failed to initialize tc (eswitch), err: %d", err);
@@ -5082,9 +5072,7 @@ void mlx5e_tc_esw_cleanup(struct rhashtable *tc_ht)
 	mapping_destroy(uplink_priv->tunnel_enc_opts_mapping);
 	mapping_destroy(uplink_priv->tunnel_mapping);
 
-#if IS_ENABLED(CONFIG_MLX5_TC_SAMPLE)
 	mlx5e_tc_sample_cleanup(uplink_priv->tc_psample);
-#endif
 	mlx5_tc_ct_clean(uplink_priv->ct_priv);
 	mlx5e_tc_post_act_destroy(uplink_priv->post_act);
 }
-- 
2.34.1

[PATCH 5.15 25/73] net/mlx5e: Delete forward rule for ct or sample action

[Greg Kroah-Hartman]

From: Chris Mi <cmi@nvidia.com>

[ Upstream commit 2820110d945923ab2f4901753e4ccbb2a506fa8e ]

When there is ct or sample action, the ct or sample rule will be deleted
and return. But if there is an extra mirror action, the forward rule can't
be deleted because of the return.

Fix it by removing the return.

Fixes: 69e2916ebce4 ("net/mlx5: CT: Add support for mirroring")
Fixes: f94d6389f6a8 ("net/mlx5e: TC, Add support to offload sample action")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index e7736421d1bc2..fa461bc57baee 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1179,21 +1179,16 @@ void mlx5e_tc_unoffload_fdb_rules(struct mlx5_eswitch *esw,
 	if (attr->flags & MLX5_ESW_ATTR_FLAG_SLOW_PATH)
 		goto offload_rule_0;
 
-	if (flow_flag_test(flow, CT)) {
-		mlx5_tc_ct_delete_flow(get_ct_priv(flow->priv), flow, attr);
-		return;
-	}
-
-	if (flow_flag_test(flow, SAMPLE)) {
-		mlx5e_tc_sample_unoffload(get_sample_priv(flow->priv), flow->rule[0], attr);
-		return;
-	}
-
 	if (attr->esw_attr->split_count)
 		mlx5_eswitch_del_fwd_rule(esw, flow->rule[1], attr);
 
+	if (flow_flag_test(flow, CT))
+		mlx5_tc_ct_delete_flow(get_ct_priv(flow->priv), flow, attr);
+	else if (flow_flag_test(flow, SAMPLE))
+		mlx5e_tc_sample_unoffload(get_sample_priv(flow->priv), flow->rule[0], attr);
+	else
 offload_rule_0:
-	mlx5_eswitch_del_offloaded_rule(esw, flow->rule[0], attr);
+		mlx5_eswitch_del_offloaded_rule(esw, flow->rule[0], attr);
 }
 
 struct mlx5_flow_handle *
-- 
2.34.1

[PATCH 5.15 26/73] udp: using datalen to cap ipv6 udp max gso segments

[Greg Kroah-Hartman]

From: Coco Li <lixiaoyan@google.com>

[ Upstream commit 736ef37fd9a44f5966e25319d08ff7ea99ac79e8 ]

The max number of UDP gso segments is intended to cap to
UDP_MAX_SEGMENTS, this is checked in udp_send_skb().

skb->len contains network and transport header len here, we should use
only data len instead.

This is the ipv6 counterpart to the below referenced commit,
which missed the ipv6 change

Fixes: 158390e45612 ("udp: using datalen to cap max gso segments")
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211223222441.2975883-1-lixiaoyan@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 7bee95d8d2df0..8cd8c0bce0986 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1204,7 +1204,7 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6,
 			kfree_skb(skb);
 			return -EINVAL;
 		}
-		if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
+		if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) {
 			kfree_skb(skb);
 			return -EINVAL;
 		}
-- 
2.34.1

[PATCH 5.15 27/73] selftests: Calculate udpgso segment count without header adjustment

[Greg Kroah-Hartman]

From: Coco Li <lixiaoyan@google.com>

[ Upstream commit 5471d5226c3b39b3d2f7011c082d5715795bd65c ]

The below referenced commit correctly updated the computation of number
of segments (gso_size) by using only the gso payload size and
removing the header lengths.

With this change the regression test started failing. Update
the tests to match this new behavior.

Both IPv4 and IPv6 tests are updated, as a separate patch in this series
will update udp_v6_send_skb to match this change in udp_send_skb.

Fixes: 158390e45612 ("udp: using datalen to cap max gso segments")
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211223222441.2975883-2-lixiaoyan@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgso.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/net/udpgso.c b/tools/testing/selftests/net/udpgso.c
index c66da6ffd6d8d..7badaf215de28 100644
--- a/tools/testing/selftests/net/udpgso.c
+++ b/tools/testing/selftests/net/udpgso.c
@@ -156,13 +156,13 @@ struct testcase testcases_v4[] = {
 	},
 	{
 		/* send max number of min sized segments */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V4,
+		.tlen = UDP_MAX_SEGMENTS,
 		.gso_len = 1,
-		.r_num_mss = UDP_MAX_SEGMENTS - CONST_HDRLEN_V4,
+		.r_num_mss = UDP_MAX_SEGMENTS,
 	},
 	{
 		/* send max number + 1 of min sized segments: fail */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V4 + 1,
+		.tlen = UDP_MAX_SEGMENTS + 1,
 		.gso_len = 1,
 		.tfail = true,
 	},
@@ -259,13 +259,13 @@ struct testcase testcases_v6[] = {
 	},
 	{
 		/* send max number of min sized segments */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V6,
+		.tlen = UDP_MAX_SEGMENTS,
 		.gso_len = 1,
-		.r_num_mss = UDP_MAX_SEGMENTS - CONST_HDRLEN_V6,
+		.r_num_mss = UDP_MAX_SEGMENTS,
 	},
 	{
 		/* send max number + 1 of min sized segments: fail */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V6 + 1,
+		.tlen = UDP_MAX_SEGMENTS + 1,
 		.gso_len = 1,
 		.tfail = true,
 	},
-- 
2.34.1

[PATCH 5.15 28/73] net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit b45396afa4177f2b1ddfeff7185da733fade1dc3 ]

The fixed_phy_get_gpiod function() returns NULL, it doesn't return error
pointers, using NULL checking to fix this.i

Fixes: 5468e82f7034 ("net: phy: fixed-phy: Drop GPIO from fixed_phy_add()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20211224021500.10362-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/fixed_phy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c
index c65fb5f5d2dc5..a0c256bd54417 100644
--- a/drivers/net/phy/fixed_phy.c
+++ b/drivers/net/phy/fixed_phy.c
@@ -239,8 +239,8 @@ static struct phy_device *__fixed_phy_register(unsigned int irq,
 	/* Check if we have a GPIO associated with this fixed phy */
 	if (!gpiod) {
 		gpiod = fixed_phy_get_gpiod(np);
-		if (IS_ERR(gpiod))
-			return ERR_CAST(gpiod);
+		if (!gpiod)
+			return ERR_PTR(-EINVAL);
 	}
 
 	/* Get the next available PHY address, up to PHY_MAX_ADDR */
-- 
2.34.1

[PATCH 5.15 29/73] sctp: use call_rcu to free endpoint

[Greg Kroah-Hartman]

From: Xin Long <lucien.xin@gmail.com>

[ Upstream commit 5ec7d18d1813a5bead0b495045606c93873aecbb ]

This patch is to delay the endpoint free by calling call_rcu() to fix
another use-after-free issue in sctp_sock_dump():

  BUG: KASAN: use-after-free in __lock_acquire+0x36d9/0x4c20
  Call Trace:
    __lock_acquire+0x36d9/0x4c20 kernel/locking/lockdep.c:3218
    lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844
    __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
    _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
    spin_lock_bh include/linux/spinlock.h:334 [inline]
    __lock_sock+0x203/0x350 net/core/sock.c:2253
    lock_sock_nested+0xfe/0x120 net/core/sock.c:2774
    lock_sock include/net/sock.h:1492 [inline]
    sctp_sock_dump+0x122/0xb20 net/sctp/diag.c:324
    sctp_for_each_transport+0x2b5/0x370 net/sctp/socket.c:5091
    sctp_diag_dump+0x3ac/0x660 net/sctp/diag.c:527
    __inet_diag_dump+0xa8/0x140 net/ipv4/inet_diag.c:1049
    inet_diag_dump+0x9b/0x110 net/ipv4/inet_diag.c:1065
    netlink_dump+0x606/0x1080 net/netlink/af_netlink.c:2244
    __netlink_dump_start+0x59a/0x7c0 net/netlink/af_netlink.c:2352
    netlink_dump_start include/linux/netlink.h:216 [inline]
    inet_diag_handler_cmd+0x2ce/0x3f0 net/ipv4/inet_diag.c:1170
    __sock_diag_cmd net/core/sock_diag.c:232 [inline]
    sock_diag_rcv_msg+0x31d/0x410 net/core/sock_diag.c:263
    netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477
    sock_diag_rcv+0x2a/0x40 net/core/sock_diag.c:274

This issue occurs when asoc is peeled off and the old sk is freed after
getting it by asoc->base.sk and before calling lock_sock(sk).

To prevent the sk free, as a holder of the sk, ep should be alive when
calling lock_sock(). This patch uses call_rcu() and moves sock_put and
ep free into sctp_endpoint_destroy_rcu(), so that it's safe to try to
hold the ep under rcu_read_lock in sctp_transport_traverse_process().

If sctp_endpoint_hold() returns true, it means this ep is still alive
and we have held it and can continue to dump it; If it returns false,
it means this ep is dead and can be freed after rcu_read_unlock, and
we should skip it.

In sctp_sock_dump(), after locking the sk, if this ep is different from
tsp->asoc->ep, it means during this dumping, this asoc was peeled off
before calling lock_sock(), and the sk should be skipped; If this ep is
the same with tsp->asoc->ep, it means no peeloff happens on this asoc,
and due to lock_sock, no peeloff will happen either until release_sock.

Note that delaying endpoint free won't delay the port release, as the
port release happens in sctp_endpoint_destroy() before calling call_rcu().
Also, freeing endpoint by call_rcu() makes it safe to access the sk by
asoc->base.sk in sctp_assocs_seq_show() and sctp_rcv().

Thanks Jones to bring this issue up.

v1->v2:
  - improve the changelog.
  - add kfree(ep) into sctp_endpoint_destroy_rcu(), as Jakub noticed.

Reported-by: syzbot+9276d76e83e3bcde6c99@syzkaller.appspotmail.com
Reported-by: Lee Jones <lee.jones@linaro.org>
Fixes: d25adbeb0cdb ("sctp: fix an use-after-free issue in sctp_sock_dump")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/sctp/sctp.h    |  6 +++---
 include/net/sctp/structs.h |  3 ++-
 net/sctp/diag.c            | 12 ++++++------
 net/sctp/endpointola.c     | 23 +++++++++++++++--------
 net/sctp/socket.c          | 23 +++++++++++++++--------
 5 files changed, 41 insertions(+), 26 deletions(-)

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 189fdb9db1622..d314a180ab93d 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -105,6 +105,7 @@ extern struct percpu_counter sctp_sockets_allocated;
 int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *);
 struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int, int *);
 
+typedef int (*sctp_callback_t)(struct sctp_endpoint *, struct sctp_transport *, void *);
 void sctp_transport_walk_start(struct rhashtable_iter *iter);
 void sctp_transport_walk_stop(struct rhashtable_iter *iter);
 struct sctp_transport *sctp_transport_get_next(struct net *net,
@@ -115,9 +116,8 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
 				  struct net *net,
 				  const union sctp_addr *laddr,
 				  const union sctp_addr *paddr, void *p);
-int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
-			    int (*cb_done)(struct sctp_transport *, void *),
-			    struct net *net, int *pos, void *p);
+int sctp_transport_traverse_process(sctp_callback_t cb, sctp_callback_t cb_done,
+				    struct net *net, int *pos, void *p);
 int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *), void *p);
 int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc,
 		       struct sctp_info *info);
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 651bba654d77d..8d2c3dd9f5953 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1365,6 +1365,7 @@ struct sctp_endpoint {
 
 	u32 secid;
 	u32 peer_secid;
+	struct rcu_head rcu;
 };
 
 /* Recover the outter endpoint structure. */
@@ -1380,7 +1381,7 @@ static inline struct sctp_endpoint *sctp_ep(struct sctp_ep_common *base)
 struct sctp_endpoint *sctp_endpoint_new(struct sock *, gfp_t);
 void sctp_endpoint_free(struct sctp_endpoint *);
 void sctp_endpoint_put(struct sctp_endpoint *);
-void sctp_endpoint_hold(struct sctp_endpoint *);
+int sctp_endpoint_hold(struct sctp_endpoint *ep);
 void sctp_endpoint_add_asoc(struct sctp_endpoint *, struct sctp_association *);
 struct sctp_association *sctp_endpoint_lookup_assoc(
 	const struct sctp_endpoint *ep,
diff --git a/net/sctp/diag.c b/net/sctp/diag.c
index 760b367644c12..a7d6231715013 100644
--- a/net/sctp/diag.c
+++ b/net/sctp/diag.c
@@ -290,9 +290,8 @@ out:
 	return err;
 }
 
-static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
+static int sctp_sock_dump(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
 {
-	struct sctp_endpoint *ep = tsp->asoc->ep;
 	struct sctp_comm_param *commp = p;
 	struct sock *sk = ep->base.sk;
 	struct sk_buff *skb = commp->skb;
@@ -302,6 +301,8 @@ static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
 	int err = 0;
 
 	lock_sock(sk);
+	if (ep != tsp->asoc->ep)
+		goto release;
 	list_for_each_entry(assoc, &ep->asocs, asocs) {
 		if (cb->args[4] < cb->args[1])
 			goto next;
@@ -344,9 +345,8 @@ release:
 	return err;
 }
 
-static int sctp_sock_filter(struct sctp_transport *tsp, void *p)
+static int sctp_sock_filter(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
 {
-	struct sctp_endpoint *ep = tsp->asoc->ep;
 	struct sctp_comm_param *commp = p;
 	struct sock *sk = ep->base.sk;
 	const struct inet_diag_req_v2 *r = commp->r;
@@ -505,8 +505,8 @@ skip:
 	if (!(idiag_states & ~(TCPF_LISTEN | TCPF_CLOSE)))
 		goto done;
 
-	sctp_for_each_transport(sctp_sock_filter, sctp_sock_dump,
-				net, &pos, &commp);
+	sctp_transport_traverse_process(sctp_sock_filter, sctp_sock_dump,
+					net, &pos, &commp);
 	cb->args[2] = pos;
 
 done:
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 48c9c2c7602f7..efffde7f2328e 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -184,6 +184,18 @@ void sctp_endpoint_free(struct sctp_endpoint *ep)
 }
 
 /* Final destructor for endpoint.  */
+static void sctp_endpoint_destroy_rcu(struct rcu_head *head)
+{
+	struct sctp_endpoint *ep = container_of(head, struct sctp_endpoint, rcu);
+	struct sock *sk = ep->base.sk;
+
+	sctp_sk(sk)->ep = NULL;
+	sock_put(sk);
+
+	kfree(ep);
+	SCTP_DBG_OBJCNT_DEC(ep);
+}
+
 static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 {
 	struct sock *sk;
@@ -213,18 +225,13 @@ static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 	if (sctp_sk(sk)->bind_hash)
 		sctp_put_port(sk);
 
-	sctp_sk(sk)->ep = NULL;
-	/* Give up our hold on the sock */
-	sock_put(sk);
-
-	kfree(ep);
-	SCTP_DBG_OBJCNT_DEC(ep);
+	call_rcu(&ep->rcu, sctp_endpoint_destroy_rcu);
 }
 
 /* Hold a reference to an endpoint. */
-void sctp_endpoint_hold(struct sctp_endpoint *ep)
+int sctp_endpoint_hold(struct sctp_endpoint *ep)
 {
-	refcount_inc(&ep->base.refcnt);
+	return refcount_inc_not_zero(&ep->base.refcnt);
 }
 
 /* Release a reference to an endpoint and clean up if there are
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 6b937bfd47515..d2215d24634e8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5338,11 +5338,12 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
 }
 EXPORT_SYMBOL_GPL(sctp_transport_lookup_process);
 
-int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
-			    int (*cb_done)(struct sctp_transport *, void *),
-			    struct net *net, int *pos, void *p) {
+int sctp_transport_traverse_process(sctp_callback_t cb, sctp_callback_t cb_done,
+				    struct net *net, int *pos, void *p)
+{
 	struct rhashtable_iter hti;
 	struct sctp_transport *tsp;
+	struct sctp_endpoint *ep;
 	int ret;
 
 again:
@@ -5351,26 +5352,32 @@ again:
 
 	tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
 	for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
-		ret = cb(tsp, p);
-		if (ret)
-			break;
+		ep = tsp->asoc->ep;
+		if (sctp_endpoint_hold(ep)) { /* asoc can be peeled off */
+			ret = cb(ep, tsp, p);
+			if (ret)
+				break;
+			sctp_endpoint_put(ep);
+		}
 		(*pos)++;
 		sctp_transport_put(tsp);
 	}
 	sctp_transport_walk_stop(&hti);
 
 	if (ret) {
-		if (cb_done && !cb_done(tsp, p)) {
+		if (cb_done && !cb_done(ep, tsp, p)) {
 			(*pos)++;
+			sctp_endpoint_put(ep);
 			sctp_transport_put(tsp);
 			goto again;
 		}
+		sctp_endpoint_put(ep);
 		sctp_transport_put(tsp);
 	}
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(sctp_for_each_transport);
+EXPORT_SYMBOL_GPL(sctp_transport_traverse_process);
 
 /* 7.2.1 Association Status (SCTP_STATUS)
 
-- 
2.34.1

[PATCH 5.15 30/73] net/smc: fix using of uninitialized completions

[Greg Kroah-Hartman]

From: Karsten Graul <kgraul@linux.ibm.com>

[ Upstream commit 6d7373dabfd3933ee30c40fc8c09d2a788f6ece1 ]

In smc_wr_tx_send_wait() the completion on index specified by
pend->idx is initialized and after smc_wr_tx_send() was called the wait
for completion starts. pend->idx is used to get the correct index for
the wait, but the pend structure could already be cleared in
smc_wr_tx_process_cqe().
Introduce pnd_idx to hold and use a local copy of the correct index.

Fixes: 09c61d24f96d ("net/smc: wait for departure of an IB message")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_wr.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index a419e9af36b98..c9cd7a4c5acfc 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -288,18 +288,20 @@ int smc_wr_tx_send_wait(struct smc_link *link, struct smc_wr_tx_pend_priv *priv,
 			unsigned long timeout)
 {
 	struct smc_wr_tx_pend *pend;
+	u32 pnd_idx;
 	int rc;
 
 	pend = container_of(priv, struct smc_wr_tx_pend, priv);
 	pend->compl_requested = 1;
-	init_completion(&link->wr_tx_compl[pend->idx]);
+	pnd_idx = pend->idx;
+	init_completion(&link->wr_tx_compl[pnd_idx]);
 
 	rc = smc_wr_tx_send(link, priv);
 	if (rc)
 		return rc;
 	/* wait for completion by smc_wr_tx_process_cqe() */
 	rc = wait_for_completion_interruptible_timeout(
-					&link->wr_tx_compl[pend->idx], timeout);
+					&link->wr_tx_compl[pnd_idx], timeout);
 	if (rc <= 0)
 		rc = -ENODATA;
 	if (rc > 0)
-- 
2.34.1

[PATCH 5.15 31/73] net: usb: pegasus: Do not drop long Ethernet frames

[Greg Kroah-Hartman]

From: Matthias-Christian Ott <ott@mirix.org>

[ Upstream commit ca506fca461b260ab32952b610c3d4aadc6c11fd ]

The D-Link DSB-650TX (2001:4002) is unable to receive Ethernet frames
that are longer than 1518 octets, for example, Ethernet frames that
contain 802.1Q VLAN tags.

The frames are sent to the pegasus driver via USB but the driver
discards them because they have the Long_pkt field set to 1 in the
received status report. The function read_bulk_callback of the pegasus
driver treats such received "packets" (in the terminology of the
hardware) as errors but the field simply does just indicate that the
Ethernet frame (MAC destination to FCS) is longer than 1518 octets.

It seems that in the 1990s there was a distinction between
"giant" (> 1518) and "runt" (< 64) frames and the hardware includes
flags to indicate this distinction. It seems that the purpose of the
distinction "giant" frames was to not allow infinitely long frames due
to transmission errors and to allow hardware to have an upper limit of
the frame size. However, the hardware already has such limit with its
2048 octet receive buffer and, therefore, Long_pkt is merely a
convention and should not be treated as a receive error.

Actually, the hardware is even able to receive Ethernet frames with 2048
octets which exceeds the claimed limit frame size limit of the driver of
1536 octets (PEGASUS_MTU).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Matthias-Christian Ott <ott@mirix.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/pegasus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 6a92a3fef75e5..cd063f45785b7 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -493,11 +493,11 @@ static void read_bulk_callback(struct urb *urb)
 		goto goon;
 
 	rx_status = buf[count - 2];
-	if (rx_status & 0x1e) {
+	if (rx_status & 0x1c) {
 		netif_dbg(pegasus, rx_err, net,
 			  "RX packet error %x\n", rx_status);
 		net->stats.rx_errors++;
-		if (rx_status & 0x06)	/* long or runt	*/
+		if (rx_status & 0x04)	/* runt	*/
 			net->stats.rx_length_errors++;
 		if (rx_status & 0x08)
 			net->stats.rx_crc_errors++;
-- 
2.34.1

[PATCH 5.15 32/73] net: ag71xx: Fix a potential double free in error handling paths

[Greg Kroah-Hartman]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 1cd5384c88af5b59bf9f3b6c1a151bc14b88c2cd ]

'ndev' is a managed resource allocated with devm_alloc_etherdev(), so there
is no need to call free_netdev() explicitly or there will be a double
free().

Simplify all error handling paths accordingly.

Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/atheros/ag71xx.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index 02ae98aabf91c..416a5c99db5a2 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1915,15 +1915,12 @@ static int ag71xx_probe(struct platform_device *pdev)
 	ag->mac_reset = devm_reset_control_get(&pdev->dev, "mac");
 	if (IS_ERR(ag->mac_reset)) {
 		netif_err(ag, probe, ndev, "missing mac reset\n");
-		err = PTR_ERR(ag->mac_reset);
-		goto err_free;
+		return PTR_ERR(ag->mac_reset);
 	}
 
 	ag->mac_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
-	if (!ag->mac_base) {
-		err = -ENOMEM;
-		goto err_free;
-	}
+	if (!ag->mac_base)
+		return -ENOMEM;
 
 	ndev->irq = platform_get_irq(pdev, 0);
 	err = devm_request_irq(&pdev->dev, ndev->irq, ag71xx_interrupt,
@@ -1931,7 +1928,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 	if (err) {
 		netif_err(ag, probe, ndev, "unable to request IRQ %d\n",
 			  ndev->irq);
-		goto err_free;
+		return err;
 	}
 
 	ndev->netdev_ops = &ag71xx_netdev_ops;
@@ -1959,10 +1956,8 @@ static int ag71xx_probe(struct platform_device *pdev)
 	ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
 					    sizeof(struct ag71xx_desc),
 					    &ag->stop_desc_dma, GFP_KERNEL);
-	if (!ag->stop_desc) {
-		err = -ENOMEM;
-		goto err_free;
-	}
+	if (!ag->stop_desc)
+		return -ENOMEM;
 
 	ag->stop_desc->data = 0;
 	ag->stop_desc->ctrl = 0;
@@ -1977,7 +1972,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 	err = of_get_phy_mode(np, &ag->phy_if_mode);
 	if (err) {
 		netif_err(ag, probe, ndev, "missing phy-mode property in DT\n");
-		goto err_free;
+		return err;
 	}
 
 	netif_napi_add(ndev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
@@ -1985,7 +1980,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 	err = clk_prepare_enable(ag->clk_eth);
 	if (err) {
 		netif_err(ag, probe, ndev, "Failed to enable eth clk.\n");
-		goto err_free;
+		return err;
 	}
 
 	ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);
@@ -2021,8 +2016,6 @@ err_mdio_remove:
 	ag71xx_mdio_remove(ag);
 err_put_clk:
 	clk_disable_unprepare(ag->clk_eth);
-err_free:
-	free_netdev(ndev);
 	return err;
 }
 
-- 
2.34.1

[PATCH 5.15 33/73] net: lantiq_xrx200: fix statistics of received bytes

[Greg Kroah-Hartman]

From: Aleksander Jan Bajkowski <olek2@wp.pl>

[ Upstream commit 5be60a945329d82f06fc755a43eeefbfc5f77d72 ]

Received frames have FCS truncated. There is no need
to subtract FCS length from the statistics.

Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/lantiq_xrx200.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c
index fb78f17d734fe..b02f796b5422f 100644
--- a/drivers/net/ethernet/lantiq_xrx200.c
+++ b/drivers/net/ethernet/lantiq_xrx200.c
@@ -209,7 +209,7 @@ static int xrx200_hw_receive(struct xrx200_chan *ch)
 	skb->protocol = eth_type_trans(skb, net_dev);
 	netif_receive_skb(skb);
 	net_dev->stats.rx_packets++;
-	net_dev->stats.rx_bytes += len - ETH_FCS_LEN;
+	net_dev->stats.rx_bytes += len;
 
 	return 0;
 }
-- 
2.34.1

[PATCH 5.15 34/73] NFC: st21nfca: Fix memory leak in device probe and remove

[Greg Kroah-Hartman]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 1b9dadba502234eea7244879b8d5d126bfaf9f0c ]

'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:

unreferenced object 0xffff88800bc06800 (size 512):
  comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
  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:
    [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
    [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
    [<000000005fea522c>] __alloc_skb+0x124/0x380
    [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2

Fix it by freeing 'pending_skb' in error and remove.

Fixes: 68957303f44a ("NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/st21nfca/i2c.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 279d88128b2e4..d56bc24709b5c 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -528,7 +528,8 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
 	phy->gpiod_ena = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
 	if (IS_ERR(phy->gpiod_ena)) {
 		nfc_err(dev, "Unable to get ENABLE GPIO\n");
-		return PTR_ERR(phy->gpiod_ena);
+		r = PTR_ERR(phy->gpiod_ena);
+		goto out_free;
 	}
 
 	phy->se_status.is_ese_present =
@@ -539,7 +540,7 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
 	r = st21nfca_hci_platform_init(phy);
 	if (r < 0) {
 		nfc_err(&client->dev, "Unable to reboot st21nfca\n");
-		return r;
+		goto out_free;
 	}
 
 	r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
@@ -548,15 +549,23 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
 				ST21NFCA_HCI_DRIVER_NAME, phy);
 	if (r < 0) {
 		nfc_err(&client->dev, "Unable to register IRQ handler\n");
-		return r;
+		goto out_free;
 	}
 
-	return st21nfca_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,
-					ST21NFCA_FRAME_HEADROOM,
-					ST21NFCA_FRAME_TAILROOM,
-					ST21NFCA_HCI_LLC_MAX_PAYLOAD,
-					&phy->hdev,
-					&phy->se_status);
+	r = st21nfca_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,
+			       ST21NFCA_FRAME_HEADROOM,
+			       ST21NFCA_FRAME_TAILROOM,
+			       ST21NFCA_HCI_LLC_MAX_PAYLOAD,
+			       &phy->hdev,
+			       &phy->se_status);
+	if (r)
+		goto out_free;
+
+	return 0;
+
+out_free:
+	kfree_skb(phy->pending_skb);
+	return r;
 }
 
 static int st21nfca_hci_i2c_remove(struct i2c_client *client)
@@ -567,6 +576,8 @@ static int st21nfca_hci_i2c_remove(struct i2c_client *client)
 
 	if (phy->powered)
 		st21nfca_hci_i2c_disable(phy);
+	if (phy->pending_skb)
+		kfree_skb(phy->pending_skb);
 
 	return 0;
 }
-- 
2.34.1

[PATCH 5.15 35/73] net/smc: dont send CDC/LLC message if link not ready

[Greg Kroah-Hartman]

From: Dust Li <dust.li@linux.alibaba.com>

[ Upstream commit 90cee52f2e780345d3629e278291aea5ac74f40f ]

We found smc_llc_send_link_delete_all() sometimes wait
for 2s timeout when testing with RDMA link up/down.
It is possible when a smc_link is in ACTIVATING state,
the underlaying QP is still in RESET or RTR state, which
cannot send any messages out.

smc_llc_send_link_delete_all() use smc_link_usable() to
checks whether the link is usable, if the QP is still in
RESET or RTR state, but the smc_link is in ACTIVATING, this
LLC message will always fail without any CQE entering the
CQ, and we will always wait 2s before timeout.

Since we cannot send any messages through the QP before
the QP enter RTS. I add a wrapper smc_link_sendable()
which checks the state of QP along with the link state.
And replace smc_link_usable() with smc_link_sendable()
in all LLC & CDC message sending routine.

Fixes: 5f08318f617b ("smc: connection data control (CDC)")
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_core.c | 2 +-
 net/smc/smc_core.h | 6 ++++++
 net/smc/smc_llc.c  | 2 +-
 net/smc/smc_wr.c   | 4 ++--
 net/smc/smc_wr.h   | 2 +-
 5 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 5a9c22ee75fa4..cb06568cf422f 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -604,7 +604,7 @@ static void smcr_lgr_link_deactivate_all(struct smc_link_group *lgr)
 	for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
 		struct smc_link *lnk = &lgr->lnk[i];
 
-		if (smc_link_usable(lnk))
+		if (smc_link_sendable(lnk))
 			lnk->state = SMC_LNK_INACTIVE;
 	}
 	wake_up_all(&lgr->llc_msg_waiter);
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h
index c043ecdca5c44..51a3e8248ade2 100644
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -366,6 +366,12 @@ static inline bool smc_link_usable(struct smc_link *lnk)
 	return true;
 }
 
+static inline bool smc_link_sendable(struct smc_link *lnk)
+{
+	return smc_link_usable(lnk) &&
+		lnk->qp_attr.cur_qp_state == IB_QPS_RTS;
+}
+
 static inline bool smc_link_active(struct smc_link *lnk)
 {
 	return lnk->state == SMC_LNK_ACTIVE;
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index f1d323439a2af..ee1f0fdba0855 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -1358,7 +1358,7 @@ void smc_llc_send_link_delete_all(struct smc_link_group *lgr, bool ord, u32 rsn)
 	delllc.reason = htonl(rsn);
 
 	for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
-		if (!smc_link_usable(&lgr->lnk[i]))
+		if (!smc_link_sendable(&lgr->lnk[i]))
 			continue;
 		if (!smc_llc_send_message_wait(&lgr->lnk[i], &delllc))
 			break;
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index c9cd7a4c5acfc..fcc1942001760 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -169,7 +169,7 @@ void smc_wr_tx_cq_handler(struct ib_cq *ib_cq, void *cq_context)
 static inline int smc_wr_tx_get_free_slot_index(struct smc_link *link, u32 *idx)
 {
 	*idx = link->wr_tx_cnt;
-	if (!smc_link_usable(link))
+	if (!smc_link_sendable(link))
 		return -ENOLINK;
 	for_each_clear_bit(*idx, link->wr_tx_mask, link->wr_tx_cnt) {
 		if (!test_and_set_bit(*idx, link->wr_tx_mask))
@@ -212,7 +212,7 @@ int smc_wr_tx_get_free_slot(struct smc_link *link,
 	} else {
 		rc = wait_event_interruptible_timeout(
 			link->wr_tx_wait,
-			!smc_link_usable(link) ||
+			!smc_link_sendable(link) ||
 			lgr->terminating ||
 			(smc_wr_tx_get_free_slot_index(link, &idx) != -EBUSY),
 			SMC_WR_TX_WAIT_FREE_SLOT_TIME);
diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 2bc626f230a56..102d515757ee2 100644
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -62,7 +62,7 @@ static inline void smc_wr_tx_set_wr_id(atomic_long_t *wr_tx_id, long val)
 
 static inline bool smc_wr_tx_link_hold(struct smc_link *link)
 {
-	if (!smc_link_usable(link))
+	if (!smc_link_sendable(link))
 		return false;
 	atomic_inc(&link->wr_tx_refcnt);
 	return true;
-- 
2.34.1

[PATCH 5.15 36/73] net/smc: fix kernel panic caused by race of smc_sock

[Greg Kroah-Hartman]

From: Dust Li <dust.li@linux.alibaba.com>

[ Upstream commit 349d43127dac00c15231e8ffbcaabd70f7b0e544 ]

A crash occurs when smc_cdc_tx_handler() tries to access smc_sock
but smc_release() has already freed it.

[ 4570.695099] BUG: unable to handle page fault for address: 000000002eae9e88
[ 4570.696048] #PF: supervisor write access in kernel mode
[ 4570.696728] #PF: error_code(0x0002) - not-present page
[ 4570.697401] PGD 0 P4D 0
[ 4570.697716] Oops: 0002 [#1] PREEMPT SMP NOPTI
[ 4570.698228] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc4+ #111
[ 4570.699013] Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 8c24b4c 04/0
[ 4570.699933] RIP: 0010:_raw_spin_lock+0x1a/0x30
<...>
[ 4570.711446] Call Trace:
[ 4570.711746]  <IRQ>
[ 4570.711992]  smc_cdc_tx_handler+0x41/0xc0
[ 4570.712470]  smc_wr_tx_tasklet_fn+0x213/0x560
[ 4570.712981]  ? smc_cdc_tx_dismisser+0x10/0x10
[ 4570.713489]  tasklet_action_common.isra.17+0x66/0x140
[ 4570.714083]  __do_softirq+0x123/0x2f4
[ 4570.714521]  irq_exit_rcu+0xc4/0xf0
[ 4570.714934]  common_interrupt+0xba/0xe0

Though smc_cdc_tx_handler() checked the existence of smc connection,
smc_release() may have already dismissed and released the smc socket
before smc_cdc_tx_handler() further visits it.

smc_cdc_tx_handler()           |smc_release()
if (!conn)                     |
                               |
                               |smc_cdc_tx_dismiss_slots()
                               |      smc_cdc_tx_dismisser()
                               |
                               |sock_put(&smc->sk) <- last sock_put,
                               |                      smc_sock freed
bh_lock_sock(&smc->sk) (panic) |

To make sure we won't receive any CDC messages after we free the
smc_sock, add a refcount on the smc_connection for inflight CDC
message(posted to the QP but haven't received related CQE), and
don't release the smc_connection until all the inflight CDC messages
haven been done, for both success or failed ones.

Using refcount on CDC messages brings another problem: when the link
is going to be destroyed, smcr_link_clear() will reset the QP, which
then remove all the pending CQEs related to the QP in the CQ. To make
sure all the CQEs will always come back so the refcount on the
smc_connection can always reach 0, smc_ib_modify_qp_reset() was replaced
by smc_ib_modify_qp_error().
And remove the timeout in smc_wr_tx_wait_no_pending_sends() since we
need to wait for all pending WQEs done, or we may encounter use-after-
free when handling CQEs.

For IB device removal routine, we need to wait for all the QPs on that
device been destroyed before we can destroy CQs on the device, or
the refcount on smc_connection won't reach 0 and smc_sock cannot be
released.

Fixes: 5f08318f617b ("smc: connection data control (CDC)")
Reported-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc.h      |  5 +++++
 net/smc/smc_cdc.c  | 52 +++++++++++++++++++++-------------------------
 net/smc/smc_cdc.h  |  2 +-
 net/smc/smc_core.c | 25 +++++++++++++++++-----
 net/smc/smc_ib.c   |  4 ++--
 net/smc/smc_ib.h   |  1 +
 net/smc/smc_wr.c   | 41 +++---------------------------------
 net/smc/smc_wr.h   |  3 +--
 8 files changed, 57 insertions(+), 76 deletions(-)

diff --git a/net/smc/smc.h b/net/smc/smc.h
index d65e15f0c944c..e6919fe31617b 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -170,6 +170,11 @@ struct smc_connection {
 	u16			tx_cdc_seq;	/* sequence # for CDC send */
 	u16			tx_cdc_seq_fin;	/* sequence # - tx completed */
 	spinlock_t		send_lock;	/* protect wr_sends */
+	atomic_t		cdc_pend_tx_wr; /* number of pending tx CDC wqe
+						 * - inc when post wqe,
+						 * - dec on polled tx cqe
+						 */
+	wait_queue_head_t	cdc_pend_tx_wq; /* wakeup on no cdc_pend_tx_wr*/
 	struct delayed_work	tx_work;	/* retry of smc_cdc_msg_send */
 	u32			tx_off;		/* base offset in peer rmb */
 
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index 99acd337ba90d..84c8a4374fddd 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -31,10 +31,6 @@ static void smc_cdc_tx_handler(struct smc_wr_tx_pend_priv *pnd_snd,
 	struct smc_sock *smc;
 	int diff;
 
-	if (!conn)
-		/* already dismissed */
-		return;
-
 	smc = container_of(conn, struct smc_sock, conn);
 	bh_lock_sock(&smc->sk);
 	if (!wc_status) {
@@ -51,6 +47,12 @@ static void smc_cdc_tx_handler(struct smc_wr_tx_pend_priv *pnd_snd,
 			      conn);
 		conn->tx_cdc_seq_fin = cdcpend->ctrl_seq;
 	}
+
+	if (atomic_dec_and_test(&conn->cdc_pend_tx_wr) &&
+	    unlikely(wq_has_sleeper(&conn->cdc_pend_tx_wq)))
+		wake_up(&conn->cdc_pend_tx_wq);
+	WARN_ON(atomic_read(&conn->cdc_pend_tx_wr) < 0);
+
 	smc_tx_sndbuf_nonfull(smc);
 	bh_unlock_sock(&smc->sk);
 }
@@ -107,6 +109,10 @@ int smc_cdc_msg_send(struct smc_connection *conn,
 	conn->tx_cdc_seq++;
 	conn->local_tx_ctrl.seqno = conn->tx_cdc_seq;
 	smc_host_msg_to_cdc((struct smc_cdc_msg *)wr_buf, conn, &cfed);
+
+	atomic_inc(&conn->cdc_pend_tx_wr);
+	smp_mb__after_atomic(); /* Make sure cdc_pend_tx_wr added before post */
+
 	rc = smc_wr_tx_send(link, (struct smc_wr_tx_pend_priv *)pend);
 	if (!rc) {
 		smc_curs_copy(&conn->rx_curs_confirmed, &cfed, conn);
@@ -114,6 +120,7 @@ int smc_cdc_msg_send(struct smc_connection *conn,
 	} else {
 		conn->tx_cdc_seq--;
 		conn->local_tx_ctrl.seqno = conn->tx_cdc_seq;
+		atomic_dec(&conn->cdc_pend_tx_wr);
 	}
 
 	return rc;
@@ -136,7 +143,18 @@ int smcr_cdc_msg_send_validation(struct smc_connection *conn,
 	peer->token = htonl(local->token);
 	peer->prod_flags.failover_validation = 1;
 
+	/* We need to set pend->conn here to make sure smc_cdc_tx_handler()
+	 * can handle properly
+	 */
+	smc_cdc_add_pending_send(conn, pend);
+
+	atomic_inc(&conn->cdc_pend_tx_wr);
+	smp_mb__after_atomic(); /* Make sure cdc_pend_tx_wr added before post */
+
 	rc = smc_wr_tx_send(link, (struct smc_wr_tx_pend_priv *)pend);
+	if (unlikely(rc))
+		atomic_dec(&conn->cdc_pend_tx_wr);
+
 	return rc;
 }
 
@@ -193,31 +211,9 @@ int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn)
 	return rc;
 }
 
-static bool smc_cdc_tx_filter(struct smc_wr_tx_pend_priv *tx_pend,
-			      unsigned long data)
+void smc_cdc_wait_pend_tx_wr(struct smc_connection *conn)
 {
-	struct smc_connection *conn = (struct smc_connection *)data;
-	struct smc_cdc_tx_pend *cdc_pend =
-		(struct smc_cdc_tx_pend *)tx_pend;
-
-	return cdc_pend->conn == conn;
-}
-
-static void smc_cdc_tx_dismisser(struct smc_wr_tx_pend_priv *tx_pend)
-{
-	struct smc_cdc_tx_pend *cdc_pend =
-		(struct smc_cdc_tx_pend *)tx_pend;
-
-	cdc_pend->conn = NULL;
-}
-
-void smc_cdc_tx_dismiss_slots(struct smc_connection *conn)
-{
-	struct smc_link *link = conn->lnk;
-
-	smc_wr_tx_dismiss_slots(link, SMC_CDC_MSG_TYPE,
-				smc_cdc_tx_filter, smc_cdc_tx_dismisser,
-				(unsigned long)conn);
+	wait_event(conn->cdc_pend_tx_wq, !atomic_read(&conn->cdc_pend_tx_wr));
 }
 
 /* Send a SMC-D CDC header.
diff --git a/net/smc/smc_cdc.h b/net/smc/smc_cdc.h
index 0a0a89abd38b2..696cc11f2303b 100644
--- a/net/smc/smc_cdc.h
+++ b/net/smc/smc_cdc.h
@@ -291,7 +291,7 @@ int smc_cdc_get_free_slot(struct smc_connection *conn,
 			  struct smc_wr_buf **wr_buf,
 			  struct smc_rdma_wr **wr_rdma_buf,
 			  struct smc_cdc_tx_pend **pend);
-void smc_cdc_tx_dismiss_slots(struct smc_connection *conn);
+void smc_cdc_wait_pend_tx_wr(struct smc_connection *conn);
 int smc_cdc_msg_send(struct smc_connection *conn, struct smc_wr_buf *wr_buf,
 		     struct smc_cdc_tx_pend *pend);
 int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn);
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index cb06568cf422f..506b8498623b0 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1056,7 +1056,7 @@ void smc_conn_free(struct smc_connection *conn)
 			smc_ism_unset_conn(conn);
 		tasklet_kill(&conn->rx_tsklet);
 	} else {
-		smc_cdc_tx_dismiss_slots(conn);
+		smc_cdc_wait_pend_tx_wr(conn);
 		if (current_work() != &conn->abort_work)
 			cancel_work_sync(&conn->abort_work);
 	}
@@ -1133,7 +1133,7 @@ void smcr_link_clear(struct smc_link *lnk, bool log)
 	smc_llc_link_clear(lnk, log);
 	smcr_buf_unmap_lgr(lnk);
 	smcr_rtoken_clear_link(lnk);
-	smc_ib_modify_qp_reset(lnk);
+	smc_ib_modify_qp_error(lnk);
 	smc_wr_free_link(lnk);
 	smc_ib_destroy_queue_pair(lnk);
 	smc_ib_dealloc_protection_domain(lnk);
@@ -1264,7 +1264,7 @@ static void smc_conn_kill(struct smc_connection *conn, bool soft)
 		else
 			tasklet_unlock_wait(&conn->rx_tsklet);
 	} else {
-		smc_cdc_tx_dismiss_slots(conn);
+		smc_cdc_wait_pend_tx_wr(conn);
 	}
 	smc_lgr_unregister_conn(conn);
 	smc_close_active_abort(smc);
@@ -1387,11 +1387,16 @@ void smc_smcd_terminate_all(struct smcd_dev *smcd)
 /* Called when an SMCR device is removed or the smc module is unloaded.
  * If smcibdev is given, all SMCR link groups using this device are terminated.
  * If smcibdev is NULL, all SMCR link groups are terminated.
+ *
+ * We must wait here for QPs been destroyed before we destroy the CQs,
+ * or we won't received any CQEs and cdc_pend_tx_wr cannot reach 0 thus
+ * smc_sock cannot be released.
  */
 void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 {
 	struct smc_link_group *lgr, *lg;
 	LIST_HEAD(lgr_free_list);
+	LIST_HEAD(lgr_linkdown_list);
 	int i;
 
 	spin_lock_bh(&smc_lgr_list.lock);
@@ -1403,7 +1408,7 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 		list_for_each_entry_safe(lgr, lg, &smc_lgr_list.list, list) {
 			for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
 				if (lgr->lnk[i].smcibdev == smcibdev)
-					smcr_link_down_cond_sched(&lgr->lnk[i]);
+					list_move_tail(&lgr->list, &lgr_linkdown_list);
 			}
 		}
 	}
@@ -1415,6 +1420,16 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 		__smc_lgr_terminate(lgr, false);
 	}
 
+	list_for_each_entry_safe(lgr, lg, &lgr_linkdown_list, list) {
+		for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
+			if (lgr->lnk[i].smcibdev == smcibdev) {
+				mutex_lock(&lgr->llc_conf_mutex);
+				smcr_link_down_cond(&lgr->lnk[i]);
+				mutex_unlock(&lgr->llc_conf_mutex);
+			}
+		}
+	}
+
 	if (smcibdev) {
 		if (atomic_read(&smcibdev->lnk_cnt))
 			wait_event(smcibdev->lnks_deleted,
@@ -1514,7 +1529,6 @@ static void smcr_link_down(struct smc_link *lnk)
 	if (!lgr || lnk->state == SMC_LNK_UNUSED || list_empty(&lgr->list))
 		return;
 
-	smc_ib_modify_qp_reset(lnk);
 	to_lnk = smc_switch_conns(lgr, lnk, true);
 	if (!to_lnk) { /* no backup link available */
 		smcr_link_clear(lnk, true);
@@ -1742,6 +1756,7 @@ create:
 	conn->local_tx_ctrl.common.type = SMC_CDC_MSG_TYPE;
 	conn->local_tx_ctrl.len = SMC_WR_TX_SIZE;
 	conn->urg_state = SMC_URG_READ;
+	init_waitqueue_head(&conn->cdc_pend_tx_wq);
 	INIT_WORK(&smc->conn.abort_work, smc_conn_abort_work);
 	if (ini->is_smcd) {
 		conn->rx_off = sizeof(struct smcd_cdc_msg);
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
index a8845343d183e..f0ec1f1d50fac 100644
--- a/net/smc/smc_ib.c
+++ b/net/smc/smc_ib.c
@@ -101,12 +101,12 @@ int smc_ib_modify_qp_rts(struct smc_link *lnk)
 			    IB_QP_MAX_QP_RD_ATOMIC);
 }
 
-int smc_ib_modify_qp_reset(struct smc_link *lnk)
+int smc_ib_modify_qp_error(struct smc_link *lnk)
 {
 	struct ib_qp_attr qp_attr;
 
 	memset(&qp_attr, 0, sizeof(qp_attr));
-	qp_attr.qp_state = IB_QPS_RESET;
+	qp_attr.qp_state = IB_QPS_ERR;
 	return ib_modify_qp(lnk->roce_qp, &qp_attr, IB_QP_STATE);
 }
 
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h
index 3085f5180da79..6967c3d52b03e 100644
--- a/net/smc/smc_ib.h
+++ b/net/smc/smc_ib.h
@@ -79,6 +79,7 @@ int smc_ib_create_queue_pair(struct smc_link *lnk);
 int smc_ib_ready_link(struct smc_link *lnk);
 int smc_ib_modify_qp_rts(struct smc_link *lnk);
 int smc_ib_modify_qp_reset(struct smc_link *lnk);
+int smc_ib_modify_qp_error(struct smc_link *lnk);
 long smc_ib_setup_per_ibdev(struct smc_ib_device *smcibdev);
 int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
 			     struct smc_buf_desc *buf_slot, u8 link_idx);
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index fcc1942001760..59ca1a2d5c650 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -62,13 +62,9 @@ static inline bool smc_wr_is_tx_pend(struct smc_link *link)
 }
 
 /* wait till all pending tx work requests on the given link are completed */
-int smc_wr_tx_wait_no_pending_sends(struct smc_link *link)
+void smc_wr_tx_wait_no_pending_sends(struct smc_link *link)
 {
-	if (wait_event_timeout(link->wr_tx_wait, !smc_wr_is_tx_pend(link),
-			       SMC_WR_TX_WAIT_PENDING_TIME))
-		return 0;
-	else /* timeout */
-		return -EPIPE;
+	wait_event(link->wr_tx_wait, !smc_wr_is_tx_pend(link));
 }
 
 static inline int smc_wr_tx_find_pending_index(struct smc_link *link, u64 wr_id)
@@ -87,7 +83,6 @@ static inline void smc_wr_tx_process_cqe(struct ib_wc *wc)
 	struct smc_wr_tx_pend pnd_snd;
 	struct smc_link *link;
 	u32 pnd_snd_idx;
-	int i;
 
 	link = wc->qp->qp_context;
 
@@ -115,14 +110,6 @@ static inline void smc_wr_tx_process_cqe(struct ib_wc *wc)
 	if (!test_and_clear_bit(pnd_snd_idx, link->wr_tx_mask))
 		return;
 	if (wc->status) {
-		for_each_set_bit(i, link->wr_tx_mask, link->wr_tx_cnt) {
-			/* clear full struct smc_wr_tx_pend including .priv */
-			memset(&link->wr_tx_pends[i], 0,
-			       sizeof(link->wr_tx_pends[i]));
-			memset(&link->wr_tx_bufs[i], 0,
-			       sizeof(link->wr_tx_bufs[i]));
-			clear_bit(i, link->wr_tx_mask);
-		}
 		/* terminate link */
 		smcr_link_down_cond_sched(link);
 	}
@@ -351,25 +338,6 @@ int smc_wr_reg_send(struct smc_link *link, struct ib_mr *mr)
 	return rc;
 }
 
-void smc_wr_tx_dismiss_slots(struct smc_link *link, u8 wr_tx_hdr_type,
-			     smc_wr_tx_filter filter,
-			     smc_wr_tx_dismisser dismisser,
-			     unsigned long data)
-{
-	struct smc_wr_tx_pend_priv *tx_pend;
-	struct smc_wr_rx_hdr *wr_tx;
-	int i;
-
-	for_each_set_bit(i, link->wr_tx_mask, link->wr_tx_cnt) {
-		wr_tx = (struct smc_wr_rx_hdr *)&link->wr_tx_bufs[i];
-		if (wr_tx->type != wr_tx_hdr_type)
-			continue;
-		tx_pend = &link->wr_tx_pends[i].priv;
-		if (filter(tx_pend, data))
-			dismisser(tx_pend);
-	}
-}
-
 /****************************** receive queue ********************************/
 
 int smc_wr_rx_register_handler(struct smc_wr_rx_handler *handler)
@@ -574,10 +542,7 @@ void smc_wr_free_link(struct smc_link *lnk)
 	smc_wr_wakeup_reg_wait(lnk);
 	smc_wr_wakeup_tx_wait(lnk);
 
-	if (smc_wr_tx_wait_no_pending_sends(lnk))
-		memset(lnk->wr_tx_mask, 0,
-		       BITS_TO_LONGS(SMC_WR_BUF_CNT) *
-						sizeof(*lnk->wr_tx_mask));
+	smc_wr_tx_wait_no_pending_sends(lnk);
 	wait_event(lnk->wr_reg_wait, (!atomic_read(&lnk->wr_reg_refcnt)));
 	wait_event(lnk->wr_tx_wait, (!atomic_read(&lnk->wr_tx_refcnt)));
 
diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 102d515757ee2..cb58e60078f57 100644
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -22,7 +22,6 @@
 #define SMC_WR_BUF_CNT 16	/* # of ctrl buffers per link */
 
 #define SMC_WR_TX_WAIT_FREE_SLOT_TIME	(10 * HZ)
-#define SMC_WR_TX_WAIT_PENDING_TIME	(5 * HZ)
 
 #define SMC_WR_TX_SIZE 44 /* actual size of wr_send data (<=SMC_WR_BUF_SIZE) */
 
@@ -122,7 +121,7 @@ void smc_wr_tx_dismiss_slots(struct smc_link *lnk, u8 wr_rx_hdr_type,
 			     smc_wr_tx_filter filter,
 			     smc_wr_tx_dismisser dismisser,
 			     unsigned long data);
-int smc_wr_tx_wait_no_pending_sends(struct smc_link *link);
+void smc_wr_tx_wait_no_pending_sends(struct smc_link *link);
 
 int smc_wr_rx_register_handler(struct smc_wr_rx_handler *handler);
 int smc_wr_rx_post_init(struct smc_link *link);
-- 
2.34.1

[PATCH 5.15 37/73] igc: Do not enable crosstimestamping for i225-V models

[Greg Kroah-Hartman]

From: Vinicius Costa Gomes <vinicius.gomes@intel.com>

[ Upstream commit 1e81dcc1ab7de7a789e60042ce82d5a612632599 ]

It was reported that when PCIe PTM is enabled, some lockups could
be observed with some integrated i225-V models.

While the issue is investigated, we can disable crosstimestamp for
those models and see no loss of functionality, because those models
don't have any support for time synchronization.

Fixes: a90ec8483732 ("igc: Add support for PTP getcrosststamp()")
Link: https://lore.kernel.org/all/924175a188159f4e03bd69908a91e606b574139b.camel@gmx.de/
Reported-by: Stefan Dietrich <roots@gmx.de>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igc/igc_ptp.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c
index 30568e3544cda..4f9245aa79a18 100644
--- a/drivers/net/ethernet/intel/igc/igc_ptp.c
+++ b/drivers/net/ethernet/intel/igc/igc_ptp.c
@@ -768,7 +768,20 @@ int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr)
  */
 static bool igc_is_crosststamp_supported(struct igc_adapter *adapter)
 {
-	return IS_ENABLED(CONFIG_X86_TSC) ? pcie_ptm_enabled(adapter->pdev) : false;
+	if (!IS_ENABLED(CONFIG_X86_TSC))
+		return false;
+
+	/* FIXME: it was noticed that enabling support for PCIe PTM in
+	 * some i225-V models could cause lockups when bringing the
+	 * interface up/down. There should be no downsides to
+	 * disabling crosstimestamping support for i225-V, as it
+	 * doesn't have any PTP support. That way we gain some time
+	 * while root causing the issue.
+	 */
+	if (adapter->pdev->device == IGC_DEV_ID_I225_V)
+		return false;
+
+	return pcie_ptm_enabled(adapter->pdev);
 }
 
 static struct system_counterval_t igc_device_tstamp_to_system(u64 tstamp)
-- 
2.34.1

[PATCH 5.15 38/73] igc: Fix TX timestamp support for non-MSI-X platforms

[Greg Kroah-Hartman]

From: James McLaughlin <james.mclaughlin@qsc.com>

[ Upstream commit f85846bbf43de38fb2c89fe7d2a085608c4eb25a ]

Time synchronization was not properly enabled on non-MSI-X platforms.

Fixes: 2c344ae24501 ("igc: Add support for TX timestamping")
Signed-off-by: James McLaughlin <james.mclaughlin@qsc.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 0e19b4d02e628..0a96627391a8c 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -5466,6 +5466,9 @@ static irqreturn_t igc_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+	if (icr & IGC_ICR_TS)
+		igc_tsync_interrupt(adapter);
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
@@ -5509,6 +5512,9 @@ static irqreturn_t igc_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+	if (icr & IGC_ICR_TS)
+		igc_tsync_interrupt(adapter);
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
-- 
2.34.1

[PATCH 5.15 39/73] drm/amd/display: Send s0i2_rdy in stream_count == 0 optimization

[Greg Kroah-Hartman]

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[ Upstream commit a07f8b9983543d465b50870ab4f845d4d710ed3f ]

[Why]
Otherwise SMU won't mark Display as idle when trying to perform s2idle.

[How]
Mark the bit in the dcn31 codepath, doesn't apply to older ASIC.

It needed to be split from phy refclk off to prevent entering s2idle
when PSR was engaged but driver was not ready.

Fixes: 118a33151658 ("drm/amd/display: Add DCN3.1 clock manager support")

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index 377c4e53a2b37..407e19412a949 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -157,6 +157,7 @@ static void dcn31_update_clocks(struct clk_mgr *clk_mgr_base,
 				union display_idle_optimization_u idle_info = { 0 };
 				idle_info.idle_info.df_request_disabled = 1;
 				idle_info.idle_info.phy_ref_clk_off = 1;
+				idle_info.idle_info.s0i2_rdy = 1;
 				dcn31_smu_set_display_idle_optimization(clk_mgr, idle_info.data);
 				/* update power state */
 				clk_mgr_base->clks.pwr_state = DCN_PWR_STATE_LOW_POWER;
-- 
2.34.1

[PATCH 5.15 40/73] drm/amd/display: Set optimize_pwr_state for DCN31

[Greg Kroah-Hartman]

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[ Upstream commit 33735c1c8d0223170d79dbe166976d9cd7339c7a ]

[Why]
We'll exit optimized power state to do link detection but we won't enter
back into the optimized power state.

This could potentially block s2idle entry depending on the sequencing,
but it also means we're losing some power during the transition period.

[How]
Hook up the handler like DCN21. It was also missed like the
exit_optimized_pwr_state callback.

Fixes: 64b1d0e8d500 ("drm/amd/display: Add DCN3.1 HWSEQ")

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
index ac8fb202fd5ee..4e9fe090b770a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
@@ -100,6 +100,7 @@ static const struct hw_sequencer_funcs dcn31_funcs = {
 	.z10_save_init = dcn31_z10_save_init,
 	.is_abm_supported = dcn31_is_abm_supported,
 	.set_disp_pattern_generator = dcn30_set_disp_pattern_generator,
+	.optimize_pwr_state = dcn21_optimize_pwr_state,
 	.exit_optimized_pwr_state = dcn21_exit_optimized_pwr_state,
 	.update_visual_confirm_color = dcn20_update_visual_confirm_color,
 };
-- 
2.34.1

[PATCH 5.15 41/73] ionic: Initialize the lif->dbid_inuse bitmap

[Greg Kroah-Hartman]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 140c7bc7d1195750342ea0e6ab76179499ae7cd7 ]

When allocated, this bitmap is not initialized. Only the first bit is set a
few lines below.

Use bitmap_zalloc() to make sure that it is cleared before being used.

Fixes: 6461b446f2a0 ("ionic: Add interrupts and doorbells")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Link: https://lore.kernel.org/r/6a478eae0b5e6c63774e1f0ddb1a3f8c38fa8ade.1640527506.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 7f3322ce044c7..6ac507ddf09af 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -3283,7 +3283,7 @@ int ionic_lif_init(struct ionic_lif *lif)
 		return -EINVAL;
 	}
 
-	lif->dbid_inuse = bitmap_alloc(lif->dbid_count, GFP_KERNEL);
+	lif->dbid_inuse = bitmap_zalloc(lif->dbid_count, GFP_KERNEL);
 	if (!lif->dbid_inuse) {
 		dev_err(dev, "Failed alloc doorbell id bitmap, aborting\n");
 		return -ENOMEM;
-- 
2.34.1

[PATCH 5.15 42/73] net/mlx5e: Fix wrong features assignment in case of error

[Greg Kroah-Hartman]

From: Gal Pressman <gal@nvidia.com>

[ Upstream commit 992d8a4e38f0527f24e273ce3a9cd6dea1a6a436 ]

In case of an error in mlx5e_set_features(), 'netdev->features' must be
updated with the correct state of the device to indicate which features
were updated successfully.
To do that we maintain a copy of 'netdev->features' and update it after
successful feature changes, so we can assign it to back to
'netdev->features' if needed.

However, since not all netdev features are handled by the driver (e.g.
GRO/TSO/etc), some features may not be updated correctly in case of an
error updating another feature.

For example, while requesting to disable TSO (feature which is not
handled by the driver) and enable HW-GRO, if an error occurs during
HW-GRO enable, 'oper_features' will be assigned with 'netdev->features'
and HW-GRO turned off. TSO will remain enabled in such case, which is a
bug.

To solve that, instead of using 'netdev->features' as the baseline of
'oper_features' and changing it on set feature success, use 'features'
instead and update it in case of errors.

Fixes: 75b81ce719b7 ("net/mlx5e: Don't override netdev features field unless in error flow")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 685fe77de5ce4..baa0d7d48fc0c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3450,12 +3450,11 @@ static int set_feature_arfs(struct net_device *netdev, bool enable)
 
 static int mlx5e_handle_feature(struct net_device *netdev,
 				netdev_features_t *features,
-				netdev_features_t wanted_features,
 				netdev_features_t feature,
 				mlx5e_feature_handler feature_handler)
 {
-	netdev_features_t changes = wanted_features ^ netdev->features;
-	bool enable = !!(wanted_features & feature);
+	netdev_features_t changes = *features ^ netdev->features;
+	bool enable = !!(*features & feature);
 	int err;
 
 	if (!(changes & feature))
@@ -3463,22 +3462,22 @@ static int mlx5e_handle_feature(struct net_device *netdev,
 
 	err = feature_handler(netdev, enable);
 	if (err) {
+		MLX5E_SET_FEATURE(features, feature, !enable);
 		netdev_err(netdev, "%s feature %pNF failed, err %d\n",
 			   enable ? "Enable" : "Disable", &feature, err);
 		return err;
 	}
 
-	MLX5E_SET_FEATURE(features, feature, enable);
 	return 0;
 }
 
 int mlx5e_set_features(struct net_device *netdev, netdev_features_t features)
 {
-	netdev_features_t oper_features = netdev->features;
+	netdev_features_t oper_features = features;
 	int err = 0;
 
 #define MLX5E_HANDLE_FEATURE(feature, handler) \
-	mlx5e_handle_feature(netdev, &oper_features, features, feature, handler)
+	mlx5e_handle_feature(netdev, &oper_features, feature, handler)
 
 	err |= MLX5E_HANDLE_FEATURE(NETIF_F_LRO, set_feature_lro);
 	err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_FILTER,
-- 
2.34.1

[PATCH 5.15 43/73] net: bridge: mcast: add and enforce query interval minimum

[Greg Kroah-Hartman]

From: Nikolay Aleksandrov <nikolay@nvidia.com>

[ Upstream commit 99b40610956a8a8755653a67392e2a8b772453be ]

As reported[1] if query interval is set too low and we have multiple
bridges or even a single bridge with multiple querier vlans configured
we can crash the machine. Add a 1 second minimum which must be enforced
by overwriting the value if set lower (i.e. without returning an error) to
avoid breaking user-space. If that happens a log message is emitted to let
the administrator know that the interval has been set to the minimum.
The issue has been present since these intervals could be user-controlled.

[1] https://lore.kernel.org/netdev/e8b9ce41-57b9-b6e2-a46a-ff9c791cf0ba@gmail.com/

Fixes: d902eee43f19 ("bridge: Add multicast count/interval sysfs entries")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_multicast.c    | 16 ++++++++++++++++
 net/bridge/br_netlink.c      |  2 +-
 net/bridge/br_private.h      |  3 +++
 net/bridge/br_sysfs_br.c     |  2 +-
 net/bridge/br_vlan_options.c |  2 +-
 5 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index f3d751105343c..998da4a2d2092 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -4522,6 +4522,22 @@ int br_multicast_set_mld_version(struct net_bridge_mcast *brmctx,
 }
 #endif
 
+void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx,
+				  unsigned long val)
+{
+	unsigned long intvl_jiffies = clock_t_to_jiffies(val);
+
+	if (intvl_jiffies < BR_MULTICAST_QUERY_INTVL_MIN) {
+		br_info(brmctx->br,
+			"trying to set multicast query interval below minimum, setting to %lu (%ums)\n",
+			jiffies_to_clock_t(BR_MULTICAST_QUERY_INTVL_MIN),
+			jiffies_to_msecs(BR_MULTICAST_QUERY_INTVL_MIN));
+		intvl_jiffies = BR_MULTICAST_QUERY_INTVL_MIN;
+	}
+
+	brmctx->multicast_query_interval = intvl_jiffies;
+}
+
 /**
  * br_multicast_list_adjacent - Returns snooped multicast addresses
  * @dev:	The bridge port adjacent to which to retrieve addresses
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 5c6c4305ed235..09812df3bc91d 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1357,7 +1357,7 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
 	if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
 		u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
 
-		br->multicast_ctx.multicast_query_interval = clock_t_to_jiffies(val);
+		br_multicast_set_query_intvl(&br->multicast_ctx, val);
 	}
 
 	if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index fd5e7e74573ce..30c9411bfb646 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -28,6 +28,7 @@
 #define BR_MAX_PORTS	(1<<BR_PORT_BITS)
 
 #define BR_MULTICAST_DEFAULT_HASH_MAX 4096
+#define BR_MULTICAST_QUERY_INTVL_MIN msecs_to_jiffies(1000)
 
 #define BR_HWDOM_MAX BITS_PER_LONG
 
@@ -968,6 +969,8 @@ int br_multicast_dump_querier_state(struct sk_buff *skb,
 				    int nest_attr);
 size_t br_multicast_querier_state_size(void);
 size_t br_rports_size(const struct net_bridge_mcast *brmctx);
+void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx,
+				  unsigned long val);
 
 static inline bool br_group_is_l2(const struct br_ip *group)
 {
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index d9a89ddd03310..f5bd1114a434d 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -658,7 +658,7 @@ static ssize_t multicast_query_interval_show(struct device *d,
 static int set_query_interval(struct net_bridge *br, unsigned long val,
 			      struct netlink_ext_ack *extack)
 {
-	br->multicast_ctx.multicast_query_interval = clock_t_to_jiffies(val);
+	br_multicast_set_query_intvl(&br->multicast_ctx, val);
 	return 0;
 }
 
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index 8ffd4ed2563c6..bf1ac08742794 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -521,7 +521,7 @@ static int br_vlan_process_global_one_opts(const struct net_bridge *br,
 		u64 val;
 
 		val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]);
-		v->br_mcast_ctx.multicast_query_interval = clock_t_to_jiffies(val);
+		br_multicast_set_query_intvl(&v->br_mcast_ctx, val);
 		*changed = true;
 	}
 	if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]) {
-- 
2.34.1

[PATCH 5.15 44/73] net: bridge: mcast: add and enforce startup query interval minimum

[Greg Kroah-Hartman]

From: Nikolay Aleksandrov <nikolay@nvidia.com>

[ Upstream commit f83a112bd91a494cdee671aec74e777470fb4a07 ]

As reported[1] if startup query interval is set too low in combination with
large number of startup queries and we have multiple bridges or even a
single bridge with multiple querier vlans configured we can crash the
machine. Add a 1 second minimum which must be enforced by overwriting the
value if set lower (i.e. without returning an error) to avoid breaking
user-space. If that happens a log message is emitted to let the admin know
that the startup interval has been set to the minimum. It doesn't make
sense to make the startup interval lower than the normal query interval
so use the same value of 1 second. The issue has been present since these
intervals could be user-controlled.

[1] https://lore.kernel.org/netdev/e8b9ce41-57b9-b6e2-a46a-ff9c791cf0ba@gmail.com/

Fixes: d902eee43f19 ("bridge: Add multicast count/interval sysfs entries")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_multicast.c    | 16 ++++++++++++++++
 net/bridge/br_netlink.c      |  2 +-
 net/bridge/br_private.h      |  3 +++
 net/bridge/br_sysfs_br.c     |  2 +-
 net/bridge/br_vlan_options.c |  2 +-
 5 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 998da4a2d2092..de24098894897 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -4538,6 +4538,22 @@ void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx,
 	brmctx->multicast_query_interval = intvl_jiffies;
 }
 
+void br_multicast_set_startup_query_intvl(struct net_bridge_mcast *brmctx,
+					  unsigned long val)
+{
+	unsigned long intvl_jiffies = clock_t_to_jiffies(val);
+
+	if (intvl_jiffies < BR_MULTICAST_STARTUP_QUERY_INTVL_MIN) {
+		br_info(brmctx->br,
+			"trying to set multicast startup query interval below minimum, setting to %lu (%ums)\n",
+			jiffies_to_clock_t(BR_MULTICAST_STARTUP_QUERY_INTVL_MIN),
+			jiffies_to_msecs(BR_MULTICAST_STARTUP_QUERY_INTVL_MIN));
+		intvl_jiffies = BR_MULTICAST_STARTUP_QUERY_INTVL_MIN;
+	}
+
+	brmctx->multicast_startup_query_interval = intvl_jiffies;
+}
+
 /**
  * br_multicast_list_adjacent - Returns snooped multicast addresses
  * @dev:	The bridge port adjacent to which to retrieve addresses
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 09812df3bc91d..e365cf82f0615 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1369,7 +1369,7 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
 	if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
 		u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
 
-		br->multicast_ctx.multicast_startup_query_interval = clock_t_to_jiffies(val);
+		br_multicast_set_startup_query_intvl(&br->multicast_ctx, val);
 	}
 
 	if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 30c9411bfb646..5951e3142fe94 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -29,6 +29,7 @@
 
 #define BR_MULTICAST_DEFAULT_HASH_MAX 4096
 #define BR_MULTICAST_QUERY_INTVL_MIN msecs_to_jiffies(1000)
+#define BR_MULTICAST_STARTUP_QUERY_INTVL_MIN BR_MULTICAST_QUERY_INTVL_MIN
 
 #define BR_HWDOM_MAX BITS_PER_LONG
 
@@ -971,6 +972,8 @@ size_t br_multicast_querier_state_size(void);
 size_t br_rports_size(const struct net_bridge_mcast *brmctx);
 void br_multicast_set_query_intvl(struct net_bridge_mcast *brmctx,
 				  unsigned long val);
+void br_multicast_set_startup_query_intvl(struct net_bridge_mcast *brmctx,
+					  unsigned long val);
 
 static inline bool br_group_is_l2(const struct br_ip *group)
 {
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index f5bd1114a434d..7b0c19772111c 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -706,7 +706,7 @@ static ssize_t multicast_startup_query_interval_show(
 static int set_startup_query_interval(struct net_bridge *br, unsigned long val,
 				      struct netlink_ext_ack *extack)
 {
-	br->multicast_ctx.multicast_startup_query_interval = clock_t_to_jiffies(val);
+	br_multicast_set_startup_query_intvl(&br->multicast_ctx, val);
 	return 0;
 }
 
diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c
index bf1ac08742794..a6382973b3e70 100644
--- a/net/bridge/br_vlan_options.c
+++ b/net/bridge/br_vlan_options.c
@@ -535,7 +535,7 @@ static int br_vlan_process_global_one_opts(const struct net_bridge *br,
 		u64 val;
 
 		val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]);
-		v->br_mcast_ctx.multicast_startup_query_interval = clock_t_to_jiffies(val);
+		br_multicast_set_startup_query_intvl(&v->br_mcast_ctx, val);
 		*changed = true;
 	}
 	if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]) {
-- 
2.34.1

[PATCH 5.15 45/73] selftests/net: udpgso_bench_tx: fix dst ip argument

[Greg Kroah-Hartman]

From: wujianguo <wujianguo@chinatelecom.cn>

[ Upstream commit 9c1952aeaa98b3cfc49e2a79cb2c7d6a674213e9 ]

udpgso_bench_tx call setup_sockaddr() for dest address before
parsing all arguments, if we specify "-p ${dst_port}" after "-D ${dst_ip}",
then ${dst_port} will be ignored, and using default cfg_port 8000.

This will cause test case "multiple GRO socks" failed in udpgro.sh.

Setup sockaddr after parsing all arguments.

Fixes: 3a687bef148d ("selftests: udp gso benchmark")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/ff620d9f-5b52-06ab-5286-44b945453002@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgso_bench_tx.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/udpgso_bench_tx.c b/tools/testing/selftests/net/udpgso_bench_tx.c
index 17512a43885e7..f1fdaa2702913 100644
--- a/tools/testing/selftests/net/udpgso_bench_tx.c
+++ b/tools/testing/selftests/net/udpgso_bench_tx.c
@@ -419,6 +419,7 @@ static void usage(const char *filepath)
 
 static void parse_opts(int argc, char **argv)
 {
+	const char *bind_addr = NULL;
 	int max_len, hdrlen;
 	int c;
 
@@ -446,7 +447,7 @@ static void parse_opts(int argc, char **argv)
 			cfg_cpu = strtol(optarg, NULL, 0);
 			break;
 		case 'D':
-			setup_sockaddr(cfg_family, optarg, &cfg_dst_addr);
+			bind_addr = optarg;
 			break;
 		case 'l':
 			cfg_runtime_ms = strtoul(optarg, NULL, 10) * 1000;
@@ -492,6 +493,11 @@ static void parse_opts(int argc, char **argv)
 		}
 	}
 
+	if (!bind_addr)
+		bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+	setup_sockaddr(cfg_family, bind_addr, &cfg_dst_addr);
+
 	if (optind != argc)
 		usage(argv[0]);
 
-- 
2.34.1

[PATCH 5.15 46/73] selftests: net: Fix a typo in udpgro_fwd.sh

[Greg Kroah-Hartman]

From: Jianguo Wu <wujianguo@chinatelecom.cn>

[ Upstream commit add25d6d6c85f7b6d00a055ee0a4169acf845681 ]

$rvs -> $rcv

Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Link: https://lore.kernel.org/r/d247d7c8-a03a-0abf-3c71-4006a051d133@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgro_fwd.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/udpgro_fwd.sh b/tools/testing/selftests/net/udpgro_fwd.sh
index 7f26591f236b9..6a3985b8cd7f6 100755
--- a/tools/testing/selftests/net/udpgro_fwd.sh
+++ b/tools/testing/selftests/net/udpgro_fwd.sh
@@ -132,7 +132,7 @@ run_test() {
 	local rcv=`ip netns exec $NS_DST $ipt"-save" -c | grep 'dport 8000' | \
 							  sed -e 's/\[//' -e 's/:.*//'`
 	if [ $rcv != $pkts ]; then
-		echo " fail - received $rvs packets, expected $pkts"
+		echo " fail - received $rcv packets, expected $pkts"
 		ret=1
 		return
 	fi
-- 
2.34.1

[PATCH 5.15 47/73] net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper

[Greg Kroah-Hartman]

From: Nikolay Aleksandrov <nikolay@nvidia.com>

[ Upstream commit 168fed986b3a7ec7b98cab1fe84e2f282b9e6a8f ]

We need to first check if the context is a vlan one, then we need to
check the global bridge multicast vlan snooping flag, and finally the
vlan's multicast flag, otherwise we will unnecessarily enable vlan mcast
processing (e.g. querier timers).

Fixes: 7b54aaaf53cb ("net: bridge: multicast: add vlan state initialization and control")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/r/20211228153142.536969-1-nikolay@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_private.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 5951e3142fe94..bd218c2b2cd97 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -1158,9 +1158,9 @@ br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx)
 static inline bool
 br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx)
 {
-	return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) &&
-	       br_multicast_ctx_is_vlan(brmctx) &&
-	       !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED);
+	return br_multicast_ctx_is_vlan(brmctx) &&
+	       (!br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) ||
+		!(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED));
 }
 
 static inline bool
-- 
2.34.1

[PATCH 5.15 48/73] net/ncsi: check for error return from call to nla_put_u32

[Greg Kroah-Hartman]

From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

[ Upstream commit 92a34ab169f9eefe29cd420ce96b0a0a2a1da853 ]

As we can see from the comment of the nla_put() that it could return
-EMSGSIZE if the tailroom of the skb is insufficient.
Therefore, it should be better to check the return value of the
nla_put_u32 and return the error code if error accurs.
Also, there are many other functions have the same problem, and if this
patch is correct, I will commit a new version to fix all.

Fixes: 955dc68cb9b2 ("net/ncsi: Add generic netlink family")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211229032118.1706294-1-jiasheng@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ncsi/ncsi-netlink.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index bb5f1650f11cb..c189b4c8a1823 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -112,7 +112,11 @@ static int ncsi_write_package_info(struct sk_buff *skb,
 		pnest = nla_nest_start_noflag(skb, NCSI_PKG_ATTR);
 		if (!pnest)
 			return -ENOMEM;
-		nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
+		rc = nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
+		if (rc) {
+			nla_nest_cancel(skb, pnest);
+			return rc;
+		}
 		if ((0x1 << np->id) == ndp->package_whitelist)
 			nla_put_flag(skb, NCSI_PKG_ATTR_FORCED);
 		cnest = nla_nest_start_noflag(skb, NCSI_PKG_ATTR_CHANNEL_LIST);
-- 
2.34.1

[PATCH 5.15 49/73] selftests: net: using ping6 for IPv6 in udpgro_fwd.sh

[Greg Kroah-Hartman]

From: Jianguo Wu <wujianguo@chinatelecom.cn>

[ Upstream commit 8b3170e07539855ee91bc5e2fa7780a4c9b5c7aa ]

udpgro_fwd.sh output following message:
  ping: 2001:db8:1::100: Address family for hostname not supported

Using ping6 when pinging IPv6 addresses.

Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgro_fwd.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/udpgro_fwd.sh b/tools/testing/selftests/net/udpgro_fwd.sh
index 6a3985b8cd7f6..3ea73013d9568 100755
--- a/tools/testing/selftests/net/udpgro_fwd.sh
+++ b/tools/testing/selftests/net/udpgro_fwd.sh
@@ -185,6 +185,7 @@ for family in 4 6; do
 	IPT=iptables
 	SUFFIX=24
 	VXDEV=vxlan
+	PING=ping
 
 	if [ $family = 6 ]; then
 		BM_NET=$BM_NET_V6
@@ -192,6 +193,7 @@ for family in 4 6; do
 		SUFFIX="64 nodad"
 		VXDEV=vxlan6
 		IPT=ip6tables
+		PING="ping6"
 	fi
 
 	echo "IPv$family"
@@ -237,7 +239,7 @@ for family in 4 6; do
 
 	# load arp cache before running the test to reduce the amount of
 	# stray traffic on top of the UDP tunnel
-	ip netns exec $NS_SRC ping -q -c 1 $OL_NET$DST_NAT >/dev/null
+	ip netns exec $NS_SRC $PING -q -c 1 $OL_NET$DST_NAT >/dev/null
 	run_test "GRO fwd over UDP tunnel" $OL_NET$DST_NAT 1 1 $OL_NET$DST
 	cleanup
 
-- 
2.34.1

[PATCH 5.15 50/73] fsl/fman: Fix missing put_device() call in fman_port_probe

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit bf2b09fedc17248b315f80fb249087b7d28a69a6 ]

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the and error handling paths.

Fixes: 18a6c85fcc78 ("fsl/fman: Add FMan Port Support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/fman/fman_port.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c
index d9baac0dbc7d0..4c9d05c45c033 100644
--- a/drivers/net/ethernet/freescale/fman/fman_port.c
+++ b/drivers/net/ethernet/freescale/fman/fman_port.c
@@ -1805,7 +1805,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 	fman = dev_get_drvdata(&fm_pdev->dev);
 	if (!fman) {
 		err = -EINVAL;
-		goto return_err;
+		goto put_device;
 	}
 
 	err = of_property_read_u32(port_node, "cell-index", &val);
@@ -1813,7 +1813,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 		dev_err(port->dev, "%s: reading cell-index for %pOF failed\n",
 			__func__, port_node);
 		err = -EINVAL;
-		goto return_err;
+		goto put_device;
 	}
 	port_id = (u8)val;
 	port->dts_params.id = port_id;
@@ -1847,7 +1847,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 	}  else {
 		dev_err(port->dev, "%s: Illegal port type\n", __func__);
 		err = -EINVAL;
-		goto return_err;
+		goto put_device;
 	}
 
 	port->dts_params.type = port_type;
@@ -1861,7 +1861,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 			dev_err(port->dev, "%s: incorrect qman-channel-id\n",
 				__func__);
 			err = -EINVAL;
-			goto return_err;
+			goto put_device;
 		}
 		port->dts_params.qman_channel_id = qman_channel_id;
 	}
@@ -1871,7 +1871,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 		dev_err(port->dev, "%s: of_address_to_resource() failed\n",
 			__func__);
 		err = -ENOMEM;
-		goto return_err;
+		goto put_device;
 	}
 
 	port->dts_params.fman = fman;
@@ -1896,6 +1896,8 @@ static int fman_port_probe(struct platform_device *of_dev)
 
 	return 0;
 
+put_device:
+	put_device(&fm_pdev->dev);
 return_err:
 	of_node_put(port_node);
 free_port:
-- 
2.34.1

[PATCH 5.15 51/73] i2c: validate user data in compat ioctl

[Greg Kroah-Hartman]

From: Pavel Skripkin <paskripkin@gmail.com>

[ Upstream commit bb436283e25aaf1533ce061605d23a9564447bdf ]

Wrong user data may cause warning in i2c_transfer(), ex: zero msgs.
Userspace should not be able to trigger warnings, so this patch adds
validation checks for user data in compact ioctl to prevent reported
warnings

Reported-and-tested-by: syzbot+e417648b303855b91d8a@syzkaller.appspotmail.com
Fixes: 7d5cb45655f2 ("i2c compat ioctls: move to ->compat_ioctl()")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/i2c-dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index bce0e8bb78520..cf5d049342ead 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -535,6 +535,9 @@ static long compat_i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned lo
 				   sizeof(rdwr_arg)))
 			return -EFAULT;
 
+		if (!rdwr_arg.msgs || rdwr_arg.nmsgs == 0)
+			return -EINVAL;
+
 		if (rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
 			return -EINVAL;
 
-- 
2.34.1

[PATCH 5.15 52/73] nfc: uapi: use kernel size_t to fix user-space builds

[Greg Kroah-Hartman]

From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

commit 79b69a83705e621b258ac6d8ae6d3bfdb4b930aa upstream.

Fix user-space builds if it includes /usr/include/linux/nfc.h before
some of other headers:

  /usr/include/linux/nfc.h:281:9: error: unknown type name ‘size_t’
    281 |         size_t service_name_len;
        |         ^~~~~~

Fixes: d646960f7986 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/nfc.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -278,7 +278,7 @@ struct sockaddr_nfc_llcp {
 	__u8 dsap; /* Destination SAP, if known */
 	__u8 ssap; /* Source SAP to be bound to */
 	char service_name[NFC_LLCP_MAX_SERVICE_NAME]; /* Service name URI */;
-	size_t service_name_len;
+	__kernel_size_t service_name_len;
 };
 
 /* NFC socket protocols */

[PATCH 5.15 53/73] uapi: fix linux/nfc.h userspace compilation errors

[Greg Kroah-Hartman]

From: Dmitry V. Levin <ldv@altlinux.org>

commit 7175f02c4e5f5a9430113ab9ca0fd0ce98b28a51 upstream.

Replace sa_family_t with __kernel_sa_family_t to fix the following
linux/nfc.h userspace compilation errors:

/usr/include/linux/nfc.h:266:2: error: unknown type name 'sa_family_t'
  sa_family_t sa_family;
/usr/include/linux/nfc.h:274:2: error: unknown type name 'sa_family_t'
  sa_family_t sa_family;

Fixes: 23b7869c0fd0 ("NFC: add the NFC socket raw protocol")
Fixes: d646960f7986 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/nfc.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -263,7 +263,7 @@ enum nfc_sdp_attr {
 #define NFC_SE_ENABLED  0x1
 
 struct sockaddr_nfc {
-	sa_family_t sa_family;
+	__kernel_sa_family_t sa_family;
 	__u32 dev_idx;
 	__u32 target_idx;
 	__u32 nfc_protocol;
@@ -271,7 +271,7 @@ struct sockaddr_nfc {
 
 #define NFC_LLCP_MAX_SERVICE_NAME 63
 struct sockaddr_nfc_llcp {
-	sa_family_t sa_family;
+	__kernel_sa_family_t sa_family;
 	__u32 dev_idx;
 	__u32 target_idx;
 	__u32 nfc_protocol;

[PATCH 5.15 54/73] drm/nouveau: wait for the exclusive fence after the shared ones v2

[Greg Kroah-Hartman]

From: Christian König <christian.koenig@amd.com>

commit 67f74302f45d5d862f22ced3297624e50ac352f0 upstream.

Always waiting for the exclusive fence resulted on some performance
regressions. So try to wait for the shared fences first, then the
exclusive fence should always be signaled already.

v2: fix incorrectly placed "(", add some comment why we do this.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Stefan Fritsch <sf@sfritsch.de>
Tested-by: Dan Moulding <dmoulding@me.com>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: <stable@vger.kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211209102335.18321-1-christian.koenig@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nouveau_fence.c |   28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -353,15 +353,22 @@ nouveau_fence_sync(struct nouveau_bo *nv
 
 		if (ret)
 			return ret;
-	}
 
-	fobj = dma_resv_shared_list(resv);
-	fence = dma_resv_excl_fence(resv);
+		fobj = NULL;
+	} else {
+		fobj = dma_resv_shared_list(resv);
+	}
 
-	if (fence) {
+	/* Waiting for the exclusive fence first causes performance regressions
+	 * under some circumstances. So manually wait for the shared ones first.
+	 */
+	for (i = 0; i < (fobj ? fobj->shared_count : 0) && !ret; ++i) {
 		struct nouveau_channel *prev = NULL;
 		bool must_wait = true;
 
+		fence = rcu_dereference_protected(fobj->shared[i],
+						dma_resv_held(resv));
+
 		f = nouveau_local_fence(fence, chan->drm);
 		if (f) {
 			rcu_read_lock();
@@ -373,20 +380,13 @@ nouveau_fence_sync(struct nouveau_bo *nv
 
 		if (must_wait)
 			ret = dma_fence_wait(fence, intr);
-
-		return ret;
 	}
 
-	if (!exclusive || !fobj)
-		return ret;
-
-	for (i = 0; i < fobj->shared_count && !ret; ++i) {
+	fence = dma_resv_excl_fence(resv);
+	if (fence) {
 		struct nouveau_channel *prev = NULL;
 		bool must_wait = true;
 
-		fence = rcu_dereference_protected(fobj->shared[i],
-						dma_resv_held(resv));
-
 		f = nouveau_local_fence(fence, chan->drm);
 		if (f) {
 			rcu_read_lock();
@@ -398,6 +398,8 @@ nouveau_fence_sync(struct nouveau_bo *nv
 
 		if (must_wait)
 			ret = dma_fence_wait(fence, intr);
+
+		return ret;
 	}
 
 	return ret;

[PATCH 5.15 55/73] drm/amdgpu: When the VCN(1.0) block is suspended, powergating is explicitly enabled

[Greg Kroah-Hartman]

From: chen gong <curry.gong@amd.com>

commit b7865173cf6ae59942e2c69326a06e1c1df5ecf6 upstream.

Play a video on the raven (or PCO, raven2) platform, and then do the S3
test. When resume, the following error will be reported:

amdgpu 0000:02:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring
vcn_dec test failed (-110)
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block
<vcn_v1_0> failed -110
amdgpu 0000:02:00.0: amdgpu: amdgpu_device_ip_resume failed (-110).
PM: dpm_run_callback(): pci_pm_resume+0x0/0x90 returns -110

[why]
When playing the video: The power state flag of the vcn block is set to
POWER_STATE_ON.

When doing suspend: There is no change to the power state flag of the
vcn block, it is still POWER_STATE_ON.

When doing resume: Need to open the power gate of the vcn block and set
the power state flag of the VCN block to POWER_STATE_ON.
But at this time, the power state flag of the vcn block is already
POWER_STATE_ON. The power status flag check in the "8f2cdef drm/amd/pm:
avoid duplicate powergate/ungate setting" patch will return the
amdgpu_dpm_set_powergating_by_smu function directly.
As a result, the gate of the power was not opened, causing the
subsequent ring test to fail.

[how]
In the suspend function of the vcn block, explicitly change the power
state flag of the vcn block to POWER_STATE_OFF.

BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1828
Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -253,6 +253,13 @@ static int vcn_v1_0_suspend(void *handle
 {
 	int r;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool idle_work_unexecuted;
+
+	idle_work_unexecuted = cancel_delayed_work_sync(&adev->vcn.idle_work);
+	if (idle_work_unexecuted) {
+		if (adev->pm.dpm_enabled)
+			amdgpu_dpm_enable_uvd(adev, false);
+	}
 
 	r = vcn_v1_0_hw_fini(adev);
 	if (r)

[PATCH 5.15 56/73] drm/amdgpu: add support for IP discovery gc_info table v2

[Greg Kroah-Hartman]

From: Alex Deucher <alexander.deucher@amd.com>

commit 5e713c6afa34c0fd6f113bf7bb1c2847172d7b20 upstream.

Used on gfx9 based systems. Fixes incorrect CU counts reported
in the kernel log.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1833
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c |   76 ++++++++++++++++++--------
 drivers/gpu/drm/amd/include/discovery.h       |   49 ++++++++++++++++
 2 files changed, 103 insertions(+), 22 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -415,10 +415,15 @@ void amdgpu_discovery_harvest_ip(struct
 	}
 }
 
+union gc_info {
+	struct gc_info_v1_0 v1;
+	struct gc_info_v2_0 v2;
+};
+
 int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev)
 {
 	struct binary_header *bhdr;
-	struct gc_info_v1_0 *gc_info;
+	union gc_info *gc_info;
 
 	if (!adev->mman.discovery_bin) {
 		DRM_ERROR("ip discovery uninitialized\n");
@@ -426,27 +431,54 @@ int amdgpu_discovery_get_gfx_info(struct
 	}
 
 	bhdr = (struct binary_header *)adev->mman.discovery_bin;
-	gc_info = (struct gc_info_v1_0 *)(adev->mman.discovery_bin +
+	gc_info = (union gc_info *)(adev->mman.discovery_bin +
 			le16_to_cpu(bhdr->table_list[GC].offset));
-
-	adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->gc_num_se);
-	adev->gfx.config.max_cu_per_sh = 2 * (le32_to_cpu(gc_info->gc_num_wgp0_per_sa) +
-					      le32_to_cpu(gc_info->gc_num_wgp1_per_sa));
-	adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->gc_num_sa_per_se);
-	adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->gc_num_rb_per_se);
-	adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->gc_num_gl2c);
-	adev->gfx.config.max_gprs = le32_to_cpu(gc_info->gc_num_gprs);
-	adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->gc_num_max_gs_thds);
-	adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->gc_gs_table_depth);
-	adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->gc_gsprim_buff_depth);
-	adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->gc_double_offchip_lds_buffer);
-	adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->gc_wave_size);
-	adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->gc_max_waves_per_simd);
-	adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->gc_max_scratch_slots_per_cu);
-	adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->gc_lds_size);
-	adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->gc_num_sc_per_se) /
-					 le32_to_cpu(gc_info->gc_num_sa_per_se);
-	adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->gc_num_packer_per_sc);
-
+	switch (gc_info->v1.header.version_major) {
+	case 1:
+		adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->v1.gc_num_se);
+		adev->gfx.config.max_cu_per_sh = 2 * (le32_to_cpu(gc_info->v1.gc_num_wgp0_per_sa) +
+						      le32_to_cpu(gc_info->v1.gc_num_wgp1_per_sa));
+		adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->v1.gc_num_sa_per_se);
+		adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->v1.gc_num_rb_per_se);
+		adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->v1.gc_num_gl2c);
+		adev->gfx.config.max_gprs = le32_to_cpu(gc_info->v1.gc_num_gprs);
+		adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->v1.gc_num_max_gs_thds);
+		adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->v1.gc_gs_table_depth);
+		adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->v1.gc_gsprim_buff_depth);
+		adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->v1.gc_double_offchip_lds_buffer);
+		adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->v1.gc_wave_size);
+		adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->v1.gc_max_waves_per_simd);
+		adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->v1.gc_max_scratch_slots_per_cu);
+		adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->v1.gc_lds_size);
+		adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->v1.gc_num_sc_per_se) /
+			le32_to_cpu(gc_info->v1.gc_num_sa_per_se);
+		adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->v1.gc_num_packer_per_sc);
+		break;
+	case 2:
+		adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->v2.gc_num_se);
+		adev->gfx.config.max_cu_per_sh = le32_to_cpu(gc_info->v2.gc_num_cu_per_sh);
+		adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->v2.gc_num_sh_per_se);
+		adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->v2.gc_num_rb_per_se);
+		adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->v2.gc_num_tccs);
+		adev->gfx.config.max_gprs = le32_to_cpu(gc_info->v2.gc_num_gprs);
+		adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->v2.gc_num_max_gs_thds);
+		adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->v2.gc_gs_table_depth);
+		adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->v2.gc_gsprim_buff_depth);
+		adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->v2.gc_double_offchip_lds_buffer);
+		adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->v2.gc_wave_size);
+		adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->v2.gc_max_waves_per_simd);
+		adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->v2.gc_max_scratch_slots_per_cu);
+		adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->v2.gc_lds_size);
+		adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->v2.gc_num_sc_per_se) /
+			le32_to_cpu(gc_info->v2.gc_num_sh_per_se);
+		adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->v2.gc_num_packer_per_sc);
+		break;
+	default:
+		dev_err(adev->dev,
+			"Unhandled GC info table %d.%d\n",
+			gc_info->v1.header.version_major,
+			gc_info->v1.header.version_minor);
+		return -EINVAL;
+	}
 	return 0;
 }
--- a/drivers/gpu/drm/amd/include/discovery.h
+++ b/drivers/gpu/drm/amd/include/discovery.h
@@ -143,6 +143,55 @@ struct gc_info_v1_0 {
 	uint32_t gc_num_gl2a;
 };
 
+struct gc_info_v1_1 {
+	struct gpu_info_header header;
+
+	uint32_t gc_num_se;
+	uint32_t gc_num_wgp0_per_sa;
+	uint32_t gc_num_wgp1_per_sa;
+	uint32_t gc_num_rb_per_se;
+	uint32_t gc_num_gl2c;
+	uint32_t gc_num_gprs;
+	uint32_t gc_num_max_gs_thds;
+	uint32_t gc_gs_table_depth;
+	uint32_t gc_gsprim_buff_depth;
+	uint32_t gc_parameter_cache_depth;
+	uint32_t gc_double_offchip_lds_buffer;
+	uint32_t gc_wave_size;
+	uint32_t gc_max_waves_per_simd;
+	uint32_t gc_max_scratch_slots_per_cu;
+	uint32_t gc_lds_size;
+	uint32_t gc_num_sc_per_se;
+	uint32_t gc_num_sa_per_se;
+	uint32_t gc_num_packer_per_sc;
+	uint32_t gc_num_gl2a;
+	uint32_t gc_num_tcp_per_sa;
+	uint32_t gc_num_sdp_interface;
+	uint32_t gc_num_tcps;
+};
+
+struct gc_info_v2_0 {
+	struct gpu_info_header header;
+
+	uint32_t gc_num_se;
+	uint32_t gc_num_cu_per_sh;
+	uint32_t gc_num_sh_per_se;
+	uint32_t gc_num_rb_per_se;
+	uint32_t gc_num_tccs;
+	uint32_t gc_num_gprs;
+	uint32_t gc_num_max_gs_thds;
+	uint32_t gc_gs_table_depth;
+	uint32_t gc_gsprim_buff_depth;
+	uint32_t gc_parameter_cache_depth;
+	uint32_t gc_double_offchip_lds_buffer;
+	uint32_t gc_wave_size;
+	uint32_t gc_max_waves_per_simd;
+	uint32_t gc_max_scratch_slots_per_cu;
+	uint32_t gc_lds_size;
+	uint32_t gc_num_sc_per_se;
+	uint32_t gc_num_packer_per_sc;
+};
+
 typedef struct harvest_info_header {
 	uint32_t signature; /* Table Signature */
 	uint32_t version;   /* Table Version */

[PATCH 5.15 57/73] drm/amd/display: Changed pipe split policy to allow for multi-display pipe split

[Greg Kroah-Hartman]

From: Angus Wang <angus.wang@amd.com>

commit ee2698cf79cc759a397c61086c758d4cc85938bf upstream.

[WHY]
Current implementation of pipe split policy prevents pipe split with
multiple displays connected, which caused the MCLK speed to be stuck at
max

[HOW]
Changed the pipe split policies so that pipe split is allowed for
multi-display configurations

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1522
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1709
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1655
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1403

Note this is a backport of this commit from amdgpu drm-next for 5.16.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Angus Wang <angus.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c   |    2 +-
 drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c   |    2 +-
 drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c   |    2 +-
 drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c |    2 +-
 drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c |    2 +-
 drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c |    2 +-
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c   |    2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1067,7 +1067,7 @@ static const struct dc_debug_options deb
 		.timing_trace = false,
 		.clock_trace = true,
 		.disable_pplib_clock_request = true,
-		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+		.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 		.force_single_disp_pipe_split = false,
 		.disable_dcc = DCC_ENABLE,
 		.vsr_support = true,
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -874,7 +874,7 @@ static const struct dc_debug_options deb
 		.clock_trace = true,
 		.disable_pplib_clock_request = true,
 		.min_disp_clk_khz = 100000,
-		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+		.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 		.force_single_disp_pipe_split = false,
 		.disable_dcc = DCC_ENABLE,
 		.vsr_support = true,
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
@@ -840,7 +840,7 @@ static const struct dc_debug_options deb
 	.timing_trace = false,
 	.clock_trace = true,
 	.disable_pplib_clock_request = true,
-	.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+	.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 	.force_single_disp_pipe_split = false,
 	.disable_dcc = DCC_ENABLE,
 	.vsr_support = true,
--- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
@@ -863,7 +863,7 @@ static const struct dc_debug_options deb
 	.disable_clock_gate = true,
 	.disable_pplib_clock_request = true,
 	.disable_pplib_wm_range = true,
-	.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+	.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 	.force_single_disp_pipe_split = false,
 	.disable_dcc = DCC_ENABLE,
 	.vsr_support = true,
--- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
@@ -211,7 +211,7 @@ static const struct dc_debug_options deb
 		.timing_trace = false,
 		.clock_trace = true,
 		.disable_pplib_clock_request = true,
-		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+		.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 		.force_single_disp_pipe_split = false,
 		.disable_dcc = DCC_ENABLE,
 		.vsr_support = true,
--- a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
@@ -193,7 +193,7 @@ static const struct dc_debug_options deb
 		.timing_trace = false,
 		.clock_trace = true,
 		.disable_pplib_clock_request = true,
-		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
+		.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 		.force_single_disp_pipe_split = false,
 		.disable_dcc = DCC_ENABLE,
 		.vsr_support = true,
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
@@ -923,7 +923,7 @@ static const struct dc_debug_options deb
 	.timing_trace = false,
 	.clock_trace = true,
 	.disable_pplib_clock_request = false,
-	.pipe_split_policy = MPC_SPLIT_AVOID,
+	.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 	.force_single_disp_pipe_split = false,
 	.disable_dcc = DCC_ENABLE,
 	.vsr_support = true,

[PATCH 5.15 58/73] xhci: Fresco FL1100 controller should not have BROKEN_MSI quirk set.

[Greg Kroah-Hartman]

From: Mathias Nyman <mathias.nyman@linux.intel.com>

commit e4844092581ceec22489b66c42edc88bc6079783 upstream.

The Fresco Logic FL1100 controller needs the TRUST_TX_LENGTH quirk like
other Fresco controllers, but should not have the BROKEN_MSI quirks set.

BROKEN_MSI quirk causes issues in detecting usb drives connected to docks
with this FL1100 controller.
The BROKEN_MSI flag was apparently accidentally set together with the
TRUST_TX_LENGTH quirk

Original patch went to stable so this should go there as well.

Fixes: ea0f69d82119 ("xhci: Enable trust tx length quirk for Fresco FL11 USB controller")
Cc: stable@vger.kernel.org
cc: Nikolay Martynov <mar.kolya@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211221112825.54690-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -123,7 +123,6 @@ static void xhci_pci_quirks(struct devic
 	/* Look for vendor-specific quirks */
 	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
 			(pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
-			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 ||
 			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) {
 		if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
 				pdev->revision == 0x0) {
@@ -158,6 +157,10 @@ static void xhci_pci_quirks(struct devic
 			pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 
+	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
+			pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100)
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+
 	if (pdev->vendor == PCI_VENDOR_ID_NEC)
 		xhci->quirks |= XHCI_NEC_HOST;
 

[PATCH 5.15 59/73] usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.

[Greg Kroah-Hartman]

From: Vincent Pelletier <plr.vincent@gmail.com>

commit b1e0887379422975f237d43d8839b751a6bcf154 upstream.

ffs_data_clear is indirectly called from both ffs_fs_kill_sb and
ffs_ep0_release, so it ends up being called twice when userland closes ep0
and then unmounts f_fs.
If userland provided an eventfd along with function's USB descriptors, it
ends up calling eventfd_ctx_put as many times, causing a refcount
underflow.
NULL-ify ffs_eventfd to prevent these extraneous eventfd_ctx_put calls.

Also, set epfiles to NULL right after de-allocating it, for readability.

For completeness, ffs_data_clear actually ends up being called thrice, the
last call being before the whole ffs structure gets freed, so when this
specific sequence happens there is a second underflow happening (but not
being reported):

/sys/kernel/debug/tracing# modprobe usb_f_fs
/sys/kernel/debug/tracing# echo ffs_data_clear > set_ftrace_filter
/sys/kernel/debug/tracing# echo function > current_tracer
/sys/kernel/debug/tracing# echo 1 > tracing_on
(setup gadget, run and kill function userland process, teardown gadget)
/sys/kernel/debug/tracing# echo 0 > tracing_on
/sys/kernel/debug/tracing# cat trace
 smartcard-openp-436     [000] .....  1946.208786: ffs_data_clear <-ffs_data_closed
 smartcard-openp-431     [000] .....  1946.279147: ffs_data_clear <-ffs_data_closed
 smartcard-openp-431     [000] .n...  1946.905512: ffs_data_clear <-ffs_data_put

Warning output corresponding to above trace:
[ 1946.284139] WARNING: CPU: 0 PID: 431 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15c
[ 1946.293094] refcount_t: underflow; use-after-free.
[ 1946.298164] Modules linked in: usb_f_ncm(E) u_ether(E) usb_f_fs(E) hci_uart(E) btqca(E) btrtl(E) btbcm(E) btintel(E) bluetooth(E) nls_ascii(E) nls_cp437(E) vfat(E) fat(E) bcm2835_v4l2(CE) bcm2835_mmal_vchiq(CE) videobuf2_vmalloc(E) videobuf2_memops(E) sha512_generic(E) videobuf2_v4l2(E) sha512_arm(E) videobuf2_common(E) videodev(E) cpufreq_dt(E) snd_bcm2835(CE) brcmfmac(E) mc(E) vc4(E) ctr(E) brcmutil(E) snd_soc_core(E) snd_pcm_dmaengine(E) drbg(E) snd_pcm(E) snd_timer(E) snd(E) soundcore(E) drm_kms_helper(E) cec(E) ansi_cprng(E) rc_core(E) syscopyarea(E) raspberrypi_cpufreq(E) sysfillrect(E) sysimgblt(E) cfg80211(E) max17040_battery(OE) raspberrypi_hwmon(E) fb_sys_fops(E) regmap_i2c(E) ecdh_generic(E) rfkill(E) ecc(E) bcm2835_rng(E) rng_core(E) vchiq(CE) leds_gpio(E) libcomposite(E) fuse(E) configfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) crc32c_generic(E) sdhci_iproc(E) sdhci_pltfm(E) sdhci(E)
[ 1946.399633] CPU: 0 PID: 431 Comm: smartcard-openp Tainted: G         C OE     5.15.0-1-rpi #1  Debian 5.15.3-1
[ 1946.417950] Hardware name: BCM2835
[ 1946.425442] Backtrace:
[ 1946.432048] [<c08d60a0>] (dump_backtrace) from [<c08d62ec>] (show_stack+0x20/0x24)
[ 1946.448226]  r7:00000009 r6:0000001c r5:c04a948c r4:c0a64e2c
[ 1946.458412] [<c08d62cc>] (show_stack) from [<c08d9ae0>] (dump_stack+0x28/0x30)
[ 1946.470380] [<c08d9ab8>] (dump_stack) from [<c0123500>] (__warn+0xe8/0x154)
[ 1946.482067]  r5:c04a948c r4:c0a71dc8
[ 1946.490184] [<c0123418>] (__warn) from [<c08d6948>] (warn_slowpath_fmt+0xa0/0xe4)
[ 1946.506758]  r7:00000009 r6:0000001c r5:c0a71dc8 r4:c0a71e04
[ 1946.517070] [<c08d68ac>] (warn_slowpath_fmt) from [<c04a948c>] (refcount_warn_saturate+0x110/0x15c)
[ 1946.535309]  r8:c0100224 r7:c0dfcb84 r6:ffffffff r5:c3b84c00 r4:c24a17c0
[ 1946.546708] [<c04a937c>] (refcount_warn_saturate) from [<c0380134>] (eventfd_ctx_put+0x48/0x74)
[ 1946.564476] [<c03800ec>] (eventfd_ctx_put) from [<bf5464e8>] (ffs_data_clear+0xd0/0x118 [usb_f_fs])
[ 1946.582664]  r5:c3b84c00 r4:c2695b00
[ 1946.590668] [<bf546418>] (ffs_data_clear [usb_f_fs]) from [<bf547cc0>] (ffs_data_closed+0x9c/0x150 [usb_f_fs])
[ 1946.609608]  r5:bf54d014 r4:c2695b00
[ 1946.617522] [<bf547c24>] (ffs_data_closed [usb_f_fs]) from [<bf547da0>] (ffs_fs_kill_sb+0x2c/0x30 [usb_f_fs])
[ 1946.636217]  r7:c0dfcb84 r6:c3a12260 r5:bf54d014 r4:c229f000
[ 1946.646273] [<bf547d74>] (ffs_fs_kill_sb [usb_f_fs]) from [<c0326d50>] (deactivate_locked_super+0x54/0x9c)
[ 1946.664893]  r5:bf54d014 r4:c229f000
[ 1946.672921] [<c0326cfc>] (deactivate_locked_super) from [<c0326df8>] (deactivate_super+0x60/0x64)
[ 1946.690722]  r5:c2a09000 r4:c229f000
[ 1946.698706] [<c0326d98>] (deactivate_super) from [<c0349a28>] (cleanup_mnt+0xe4/0x14c)
[ 1946.715553]  r5:c2a09000 r4:00000000
[ 1946.723528] [<c0349944>] (cleanup_mnt) from [<c0349b08>] (__cleanup_mnt+0x1c/0x20)
[ 1946.739922]  r7:c0dfcb84 r6:c3a12260 r5:c3a126fc r4:00000000
[ 1946.750088] [<c0349aec>] (__cleanup_mnt) from [<c0143d10>] (task_work_run+0x84/0xb8)
[ 1946.766602] [<c0143c8c>] (task_work_run) from [<c010bdc8>] (do_work_pending+0x470/0x56c)
[ 1946.783540]  r7:5ac3c35a r6:c0d0424c r5:c200bfb0 r4:c200a000
[ 1946.793614] [<c010b958>] (do_work_pending) from [<c01000c0>] (slow_work_pending+0xc/0x20)
[ 1946.810553] Exception stack(0xc200bfb0 to 0xc200bff8)
[ 1946.820129] bfa0:                                     00000000 00000000 000000aa b5e21430
[ 1946.837104] bfc0: bef867a0 00000001 bef86840 00000034 bef86838 bef86790 bef86794 bef867a0
[ 1946.854125] bfe0: 00000000 bef86798 b67b7a1c b6d626a4 60000010 b5a23760
[ 1946.865335]  r10:00000000 r9:c200a000 r8:c0100224 r7:00000034 r6:bef86840 r5:00000001
[ 1946.881914]  r4:bef867a0
[ 1946.888793] ---[ end trace 7387f2a9725b28d0 ]---

Fixes: 5e33f6fdf735 ("usb: gadget: ffs: add eventfd notification about ffs events")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Link: https://lore.kernel.org/r/f79eeea29f3f98de6782a064ec0f7351ad2f598f.1639793920.git.plr.vincent@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/f_fs.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1773,11 +1773,15 @@ static void ffs_data_clear(struct ffs_da
 
 	BUG_ON(ffs->gadget);
 
-	if (ffs->epfiles)
+	if (ffs->epfiles) {
 		ffs_epfiles_destroy(ffs->epfiles, ffs->eps_count);
+		ffs->epfiles = NULL;
+	}
 
-	if (ffs->ffs_eventfd)
+	if (ffs->ffs_eventfd) {
 		eventfd_ctx_put(ffs->ffs_eventfd);
+		ffs->ffs_eventfd = NULL;
+	}
 
 	kfree(ffs->raw_descs_data);
 	kfree(ffs->raw_strings);
@@ -1790,7 +1794,6 @@ static void ffs_data_reset(struct ffs_da
 
 	ffs_data_clear(ffs);
 
-	ffs->epfiles = NULL;
 	ffs->raw_descs_data = NULL;
 	ffs->raw_descs = NULL;
 	ffs->raw_strings = NULL;

[PATCH 5.15 60/73] usb: mtu3: add memory barrier before set GPDs HWO

[Greg Kroah-Hartman]

From: Chunfeng Yun <chunfeng.yun@mediatek.com>

commit a7aae769ca626819a7f9f078ebdc69a8a1b00c81 upstream.

There is a seldom issue that the controller access invalid address
and trigger devapc or emimpu violation. That is due to memory access
is out of order and cause gpd data is not correct.
Add mb() to prohibit compiler or cpu from reordering to make sure GPD
is fully written before setting its HWO.

Fixes: 48e0d3735aa5 ("usb: mtu3: supports new QMU format")
Cc: stable@vger.kernel.org
Reported-by: Eddie Hung <eddie.hung@mediatek.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-2-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/mtu3/mtu3_qmu.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/usb/mtu3/mtu3_qmu.c
+++ b/drivers/usb/mtu3/mtu3_qmu.c
@@ -273,6 +273,8 @@ static int mtu3_prepare_tx_gpd(struct mt
 			gpd->dw3_info |= cpu_to_le32(GPD_EXT_FLAG_ZLP);
 	}
 
+	/* prevent reorder, make sure GPD's HWO is set last */
+	mb();
 	gpd->dw0_info |= cpu_to_le32(GPD_FLAGS_IOC | GPD_FLAGS_HWO);
 
 	mreq->gpd = gpd;
@@ -306,6 +308,8 @@ static int mtu3_prepare_rx_gpd(struct mt
 	gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
 	ext_addr |= GPD_EXT_NGP(mtu, upper_32_bits(enq_dma));
 	gpd->dw3_info = cpu_to_le32(ext_addr);
+	/* prevent reorder, make sure GPD's HWO is set last */
+	mb();
 	gpd->dw0_info |= cpu_to_le32(GPD_FLAGS_IOC | GPD_FLAGS_HWO);
 
 	mreq->gpd = gpd;
@@ -445,7 +449,8 @@ static void qmu_tx_zlp_error_handler(str
 		return;
 	}
 	mtu3_setbits(mbase, MU3D_EP_TXCR0(mep->epnum), TX_TXPKTRDY);
-
+	/* prevent reorder, make sure GPD's HWO is set last */
+	mb();
 	/* by pass the current GDP */
 	gpd_current->dw0_info |= cpu_to_le32(GPD_FLAGS_BPS | GPD_FLAGS_HWO);
 

[PATCH 5.15 61/73] usb: mtu3: fix list_head check warning

[Greg Kroah-Hartman]

From: Chunfeng Yun <chunfeng.yun@mediatek.com>

commit 8c313e3bfd9adae8d5c4ba1cc696dcbc86fbf9bf upstream.

This is caused by uninitialization of list_head.

BUG: KASAN: use-after-free in __list_del_entry_valid+0x34/0xe4

Call trace:
dump_backtrace+0x0/0x298
show_stack+0x24/0x34
dump_stack+0x130/0x1a8
print_address_description+0x88/0x56c
__kasan_report+0x1b8/0x2a0
kasan_report+0x14/0x20
__asan_load8+0x9c/0xa0
__list_del_entry_valid+0x34/0xe4
mtu3_req_complete+0x4c/0x300 [mtu3]
mtu3_gadget_stop+0x168/0x448 [mtu3]
usb_gadget_unregister_driver+0x204/0x3a0
unregister_gadget_item+0x44/0xa4

Fixes: 83374e035b62 ("usb: mtu3: add tracepoints to help debug")
Cc: stable@vger.kernel.org
Reported-by: Yuwen Ng <yuwen.ng@mediatek.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-3-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/mtu3/mtu3_gadget.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -235,6 +235,7 @@ struct usb_request *mtu3_alloc_request(s
 	mreq->request.dma = DMA_ADDR_INVALID;
 	mreq->epnum = mep->epnum;
 	mreq->mep = mep;
+	INIT_LIST_HEAD(&mreq->list);
 	trace_mtu3_alloc_request(mreq);
 
 	return &mreq->request;

[PATCH 5.15 62/73] usb: mtu3: set interval of FS intr and isoc endpoint

[Greg Kroah-Hartman]

From: Chunfeng Yun <chunfeng.yun@mediatek.com>

commit 43f3b8cbcf93da7c2755af4a543280c31f4adf16 upstream.

Add support to set interval also for FS intr and isoc endpoint.

Fixes: 4d79e042ed8b ("usb: mtu3: add support for usb3.1 IP")
Cc: stable@vger.kernel.org
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-4-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/mtu3/mtu3_gadget.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -93,6 +93,13 @@ static int mtu3_ep_enable(struct mtu3_ep
 			mult = usb_endpoint_maxp_mult(desc) - 1;
 		}
 		break;
+	case USB_SPEED_FULL:
+		if (usb_endpoint_xfer_isoc(desc))
+			interval = clamp_val(desc->bInterval, 1, 16);
+		else if (usb_endpoint_xfer_int(desc))
+			interval = clamp_val(desc->bInterval, 1, 255);
+
+		break;
 	default:
 		break; /*others are ignored */
 	}

[PATCH 5.15 63/73] nitro_enclaves: Use get_user_pages_unlocked() call to handle mmap assert

[Greg Kroah-Hartman]

From: Andra Paraschiv <andraprs@amazon.com>

commit 3a0152b219523227c2a62a0a122cf99608287176 upstream.

After commit 5b78ed24e8ec ("mm/pagemap: add mmap_assert_locked()
annotations to find_vma*()"), the call to get_user_pages() will trigger
the mmap assert.

static inline void mmap_assert_locked(struct mm_struct *mm)
{
	lockdep_assert_held(&mm->mmap_lock);
	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);
}

[   62.521410] kernel BUG at include/linux/mmap_lock.h:156!
...........................................................
[   62.538938] RIP: 0010:find_vma+0x32/0x80
...........................................................
[   62.605889] Call Trace:
[   62.608502]  <TASK>
[   62.610956]  ? lock_timer_base+0x61/0x80
[   62.614106]  find_extend_vma+0x19/0x80
[   62.617195]  __get_user_pages+0x9b/0x6a0
[   62.620356]  __gup_longterm_locked+0x42d/0x450
[   62.623721]  ? finish_wait+0x41/0x80
[   62.626748]  ? __kmalloc+0x178/0x2f0
[   62.629768]  ne_set_user_memory_region_ioctl.isra.0+0x225/0x6a0 [nitro_enclaves]
[   62.635776]  ne_enclave_ioctl+0x1cf/0x6d7 [nitro_enclaves]
[   62.639541]  __x64_sys_ioctl+0x82/0xb0
[   62.642620]  do_syscall_64+0x3b/0x90
[   62.645642]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Use get_user_pages_unlocked() when setting the enclave memory regions.
That's a similar pattern as mmap_read_lock() used together with
get_user_pages().

Fixes: 5b78ed24e8ec ("mm/pagemap: add mmap_assert_locked() annotations to find_vma*()")
Cc: stable@vger.kernel.org
Signed-off-by: Andra Paraschiv <andraprs@amazon.com>
Link: https://lore.kernel.org/r/20211220195856.6549-1-andraprs@amazon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virt/nitro_enclaves/ne_misc_dev.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/virt/nitro_enclaves/ne_misc_dev.c
+++ b/drivers/virt/nitro_enclaves/ne_misc_dev.c
@@ -886,8 +886,9 @@ static int ne_set_user_memory_region_ioc
 			goto put_pages;
 		}
 
-		gup_rc = get_user_pages(mem_region.userspace_addr + memory_size, 1, FOLL_GET,
-					ne_mem_region->pages + i, NULL);
+		gup_rc = get_user_pages_unlocked(mem_region.userspace_addr + memory_size, 1,
+						 ne_mem_region->pages + i, FOLL_GET);
+
 		if (gup_rc < 0) {
 			rc = gup_rc;
 

[PATCH 5.15 64/73] binder: fix async_free_space accounting for empty parcels

[Greg Kroah-Hartman]

From: Todd Kjos <tkjos@google.com>

commit cfd0d84ba28c18b531648c9d4a35ecca89ad9901 upstream.

In 4.13, commit 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
fixed a kernel structure visibility issue. As part of that patch,
sizeof(void *) was used as the buffer size for 0-length data payloads so
the driver could detect abusive clients sending 0-length asynchronous
transactions to a server by enforcing limits on async_free_size.

Unfortunately, on the "free" side, the accounting of async_free_space
did not add the sizeof(void *) back. The result was that up to 8-bytes of
async_free_space were leaked on every async transaction of 8-bytes or
less.  These small transactions are uncommon, so this accounting issue
has gone undetected for several years.

The fix is to use "buffer_size" (the allocated buffer size) instead of
"size" (the logical buffer size) when updating the async_free_space
during the free operation. These are the same except for this
corner case of asynchronous transactions with payloads < 8 bytes.

Fixes: 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
Signed-off-by: Todd Kjos <tkjos@google.com>
Cc: stable@vger.kernel.org # 4.14+
Link: https://lore.kernel.org/r/20211220190150.2107077-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder_alloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -671,7 +671,7 @@ static void binder_free_buf_locked(struc
 	BUG_ON(buffer->user_data > alloc->buffer + alloc->buffer_size);
 
 	if (buffer->async_transaction) {
-		alloc->free_async_space += size + sizeof(struct binder_buffer);
+		alloc->free_async_space += buffer_size + sizeof(struct binder_buffer);
 
 		binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
 			     "%d: binder_free_buf size %zd async free %zd\n",

[PATCH 5.15 65/73] scsi: vmw_pvscsi: Set residual data length conditionally

[Greg Kroah-Hartman]

From: Alexey Makhalov <amakhalov@vmware.com>

commit 142c779d05d1fef75134c3cb63f52ccbc96d9e1f upstream.

The PVSCSI implementation in the VMware hypervisor under specific
configuration ("SCSI Bus Sharing" set to "Physical") returns zero dataLen
in the completion descriptor for READ CAPACITY(16). As a result, the kernel
can not detect proper disk geometry. This can be recognized by the kernel
message:

  [ 0.776588] sd 1:0:0:0: [sdb] Sector size 0 reported, assuming 512.

The PVSCSI implementation in QEMU does not set dataLen at all, keeping it
zeroed. This leads to a boot hang as was reported by Shmulik Ladkani.

It is likely that the controller returns the garbage at the end of the
buffer. Residual length should be set by the driver in that case. The SCSI
layer will erase corresponding data. See commit bdb2b8cab439 ("[SCSI] erase
invalid data returned by device") for details.

Commit e662502b3a78 ("scsi: vmw_pvscsi: Set correct residual data length")
introduced the issue by setting residual length unconditionally, causing
the SCSI layer to erase the useful payload beyond dataLen when this value
is returned as 0.

As a result, considering existing issues in implementations of PVSCSI
controllers, we do not want to call scsi_set_resid() when dataLen ==
0. Calling scsi_set_resid() has no effect if dataLen equals buffer length.

Link: https://lore.kernel.org/lkml/20210824120028.30d9c071@blondie/
Link: https://lore.kernel.org/r/20211220190514.55935-1-amakhalov@vmware.com
Fixes: e662502b3a78 ("scsi: vmw_pvscsi: Set correct residual data length")
Cc: Matt Wang <wwentao@vmware.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Vishal Bhakta <vbhakta@vmware.com>
Cc: VMware PV-Drivers <pv-drivers@vmware.com>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: linux-scsi@vger.kernel.org
Cc: stable@vger.kernel.org
Reported-and-suggested-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/vmw_pvscsi.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -586,9 +586,12 @@ static void pvscsi_complete_request(stru
 			 * Commands like INQUIRY may transfer less data than
 			 * requested by the initiator via bufflen. Set residual
 			 * count to make upper layer aware of the actual amount
-			 * of data returned.
+			 * of data returned. There are cases when controller
+			 * returns zero dataLen with non zero data - do not set
+			 * residual count in that case.
 			 */
-			scsi_set_resid(cmd, scsi_bufflen(cmd) - e->dataLen);
+			if (e->dataLen && (e->dataLen < scsi_bufflen(cmd)))
+				scsi_set_resid(cmd, scsi_bufflen(cmd) - e->dataLen);
 			cmd->result = (DID_OK << 16);
 			break;
 

[PATCH 5.15 66/73] Input: appletouch - initialize work before device registration

[Greg Kroah-Hartman]

From: Pavel Skripkin <paskripkin@gmail.com>

commit 9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0 upstream.

Syzbot has reported warning in __flush_work(). This warning is caused by
work->func == NULL, which means missing work initialization.

This may happen, since input_dev->close() calls
cancel_work_sync(&dev->work), but dev->work initalization happens _after_
input_register_device() call.

So this patch moves dev->work initialization before registering input
device

Fixes: 5a6eb676d3bc ("Input: appletouch - improve powersaving for Geyser3 devices")
Reported-and-tested-by: syzbot+b88c5eae27386b252bbd@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211230141151.17300-1-paskripkin@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/mouse/appletouch.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -916,6 +916,8 @@ static int atp_probe(struct usb_interfac
 	set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
 	set_bit(BTN_LEFT, input_dev->keybit);
 
+	INIT_WORK(&dev->work, atp_reinit);
+
 	error = input_register_device(dev->input);
 	if (error)
 		goto err_free_buffer;
@@ -923,8 +925,6 @@ static int atp_probe(struct usb_interfac
 	/* save our data pointer in this interface device */
 	usb_set_intfdata(iface, dev);
 
-	INIT_WORK(&dev->work, atp_reinit);
-
 	return 0;
 
  err_free_buffer:

[PATCH 5.15 67/73] Input: spaceball - fix parsing of movement data packets

[Greg Kroah-Hartman]

From: Leo L. Schwab <ewhac@ewhac.org>

commit bc7ec91718c49d938849697cfad98fcd9877cc26 upstream.

The spaceball.c module was not properly parsing the movement reports
coming from the device.  The code read axis data as signed 16-bit
little-endian values starting at offset 2.

In fact, axis data in Spaceball movement reports are signed 16-bit
big-endian values starting at offset 3.  This was determined first by
visually inspecting the data packets, and later verified by consulting:
http://spacemice.org/pdf/SpaceBall_2003-3003_Protocol.pdf

If this ever worked properly, it was in the time before Git...

Signed-off-by: Leo L. Schwab <ewhac@ewhac.org>
Link: https://lore.kernel.org/r/20211221101630.1146385-1-ewhac@ewhac.org
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/joystick/spaceball.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/input/joystick/spaceball.c
+++ b/drivers/input/joystick/spaceball.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/input.h>
 #include <linux/serio.h>
+#include <asm/unaligned.h>
 
 #define DRIVER_DESC	"SpaceTec SpaceBall 2003/3003/4000 FLX driver"
 
@@ -75,9 +76,15 @@ static void spaceball_process_packet(str
 
 		case 'D':					/* Ball data */
 			if (spaceball->idx != 15) return;
-			for (i = 0; i < 6; i++)
+			/*
+			 * Skip first three bytes; read six axes worth of data.
+			 * Axis values are signed 16-bit big-endian.
+			 */
+			data += 3;
+			for (i = 0; i < ARRAY_SIZE(spaceball_axes); i++) {
 				input_report_abs(dev, spaceball_axes[i],
-					(__s16)((data[2 * i + 3] << 8) | data[2 * i + 2]));
+					(__s16)get_unaligned_be16(&data[i * 2]));
+			}
 			break;
 
 		case 'K':					/* Button data */

[PATCH 5.15 68/73] mm/damon/dbgfs: fix struct pid leaks in dbgfs_target_ids_write()

[Greg Kroah-Hartman]

From: SeongJae Park <sj@kernel.org>

commit ebb3f994dd92f8fb4d70c7541091216c1e10cb71 upstream.

DAMON debugfs interface increases the reference counts of 'struct pid's
for targets from the 'target_ids' file write callback
('dbgfs_target_ids_write()'), but decreases the counts only in DAMON
monitoring termination callback ('dbgfs_before_terminate()').

Therefore, when 'target_ids' file is repeatedly written without DAMON
monitoring start/termination, the reference count is not decreased and
therefore memory for the 'struct pid' cannot be freed.  This commit
fixes this issue by decreasing the reference counts when 'target_ids' is
written.

Link: https://lkml.kernel.org/r/20211229124029.23348-1-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>	[5.15+]
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/damon/dbgfs.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -185,6 +185,7 @@ static ssize_t dbgfs_target_ids_write(st
 		const char __user *buf, size_t count, loff_t *ppos)
 {
 	struct damon_ctx *ctx = file->private_data;
+	struct damon_target *t, *next_t;
 	char *kbuf, *nrs;
 	unsigned long *targets;
 	ssize_t nr_targets;
@@ -224,6 +225,13 @@ static ssize_t dbgfs_target_ids_write(st
 		goto unlock_out;
 	}
 
+	/* remove previously set targets */
+	damon_for_each_target_safe(t, next_t, ctx) {
+		if (targetid_is_pid(ctx))
+			put_pid((struct pid *)t->id);
+		damon_destroy_target(t);
+	}
+
 	err = damon_set_targets(ctx, targets, nr_targets);
 	if (err) {
 		if (targetid_is_pid(ctx))

[PATCH 5.15 69/73] net: fix use-after-free in tw_timer_handler

[Greg Kroah-Hartman]

From: Muchun Song <songmuchun@bytedance.com>

commit e22e45fc9e41bf9fcc1e92cfb78eb92786728ef0 upstream.

A real world panic issue was found as follow in Linux 5.4.

    BUG: unable to handle page fault for address: ffffde49a863de28
    PGD 7e6fe62067 P4D 7e6fe62067 PUD 7e6fe63067 PMD f51e064067 PTE 0
    RIP: 0010:tw_timer_handler+0x20/0x40
    Call Trace:
     <IRQ>
     call_timer_fn+0x2b/0x120
     run_timer_softirq+0x1ef/0x450
     __do_softirq+0x10d/0x2b8
     irq_exit+0xc7/0xd0
     smp_apic_timer_interrupt+0x68/0x120
     apic_timer_interrupt+0xf/0x20

This issue was also reported since 2017 in the thread [1],
unfortunately, the issue was still can be reproduced after fixing
DCCP.

The ipv4_mib_exit_net is called before tcp_sk_exit_batch when a net
namespace is destroyed since tcp_sk_ops is registered befrore
ipv4_mib_ops, which means tcp_sk_ops is in the front of ipv4_mib_ops
in the list of pernet_list. There will be a use-after-free on
net->mib.net_statistics in tw_timer_handler after ipv4_mib_exit_net
if there are some inflight time-wait timers.

This bug is not introduced by commit f2bf415cfed7 ("mib: add net to
NET_ADD_STATS_BH") since the net_statistics is a global variable
instead of dynamic allocation and freeing. Actually, commit
61a7e26028b9 ("mib: put net statistics on struct net") introduces
the bug since it put net statistics on struct net and free it when
net namespace is destroyed.

Moving init_ipv4_mibs() to the front of tcp_init() to fix this bug
and replace pr_crit() with panic() since continuing is meaningless
when init_ipv4_mibs() fails.

[1] https://groups.google.com/g/syzkaller/c/p1tn-_Kc6l4/m/smuL_FMAAgAJ?pli=1

Fixes: 61a7e26028b9 ("mib: put net statistics on struct net")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Cc: Cong Wang <cong.wang@bytedance.com>
Cc: Fam Zheng <fam.zheng@bytedance.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211228104145.9426-1-songmuchun@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/af_inet.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -2004,6 +2004,10 @@ static int __init inet_init(void)
 
 	ip_init();
 
+	/* Initialise per-cpu ipv4 mibs */
+	if (init_ipv4_mibs())
+		panic("%s: Cannot init ipv4 mibs\n", __func__);
+
 	/* Setup TCP slab cache for open requests. */
 	tcp_init();
 
@@ -2034,12 +2038,6 @@ static int __init inet_init(void)
 
 	if (init_inet_pernet_ops())
 		pr_crit("%s: Cannot init ipv4 inet pernet ops\n", __func__);
-	/*
-	 *	Initialise per-cpu ipv4 mibs
-	 */
-
-	if (init_ipv4_mibs())
-		pr_crit("%s: Cannot init ipv4 mibs\n", __func__);
 
 	ipv4_proc_init();
 

[PATCH 5.15 70/73] fs/mount_setattr: always cleanup mount_kattr

[Greg Kroah-Hartman]

From: Christian Brauner <christian.brauner@ubuntu.com>

commit 012e332286e2bb9f6ac77d195f17e74b2963d663 upstream.

Make sure that finish_mount_kattr() is called after mount_kattr was
succesfully built in both the success and failure case to prevent
leaking any references we took when we built it.  We returned early if
path lookup failed thereby risking to leak an additional reference we
took when building mount_kattr when an idmapped mount was requested.

Cc: linux-fsdevel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: 9caccd41541a ("fs: introduce MOUNT_ATTR_IDMAP")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/namespace.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -4263,12 +4263,11 @@ SYSCALL_DEFINE5(mount_setattr, int, dfd,
 		return err;
 
 	err = user_path_at(dfd, path, kattr.lookup_flags, &target);
-	if (err)
-		return err;
-
-	err = do_mount_setattr(&target, &kattr);
+	if (!err) {
+		err = do_mount_setattr(&target, &kattr);
+		path_put(&target);
+	}
 	finish_mount_kattr(&kattr);
-	path_put(&target);
 	return err;
 }
 

[PATCH 5.15 71/73] perf intel-pt: Fix parsing of VM time correlation arguments

[Greg Kroah-Hartman]

From: Adrian Hunter <adrian.hunter@intel.com>

commit a78abde220243d6f44a265fe36c49957f6fa9851 upstream.

Parser did not take ':' into account.

Example:

 Before:

  $ perf record -e intel_pt//u uname
  Linux
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.026 MB perf.data ]
  $ perf inject -i perf.data --vm-time-correlation="dry-run 123"
  $ perf inject -i perf.data --vm-time-correlation="dry-run 123:456"
  Failed to parse VM Time Correlation options
  0x620 [0x98]: failed to process type: 70 [Invalid argument]
  $

 After:

  $ perf inject -i perf.data --vm-time-correlation="dry-run 123:456"
  $

Fixes: e3ff42bdebcfeb5f ("perf intel-pt: Parse VM Time Correlation options and set up decoding")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215080636.149562-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/intel-pt.c |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -3540,6 +3540,7 @@ static int intel_pt_parse_vm_tm_corr_arg
 		*args = p;
 		return 0;
 	}
+	p += 1;
 	while (1) {
 		vmcs = strtoull(p, &p, 0);
 		if (errno)

[PATCH 5.15 72/73] perf script: Fix CPU filtering of a scripts switch events

[Greg Kroah-Hartman]

From: Adrian Hunter <adrian.hunter@intel.com>

commit 5e0c325cdb714409a5b242c9e73a1b61157abb36 upstream.

CPU filtering was not being applied to a script's switch events.

Fixes: 5bf83c29a0ad2e78 ("perf script: Add scripting operation process_switch()")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215080636.149562-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/builtin-script.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2463,7 +2463,7 @@ static int process_switch_event(struct p
 	if (perf_event__process_switch(tool, event, sample, machine) < 0)
 		return -1;
 
-	if (scripting_ops && scripting_ops->process_switch)
+	if (scripting_ops && scripting_ops->process_switch && !filter_cpu(sample))
 		scripting_ops->process_switch(event, sample, machine);
 
 	if (!script->show_switch_events)

[PATCH 5.15 73/73] perf scripts python: intel-pt-events.py: Fix printing of switch events

[Greg Kroah-Hartman]

From: Adrian Hunter <adrian.hunter@intel.com>

commit 0f80bfbf4919e32f52fe1312c3900ff4fbb7eeb9 upstream.

The intel-pt-events.py script displays only the last of consecutive switch
statements but that may not be the last switch event for the CPU. Fix by
keeping a dictionary of last context switch keyed by CPU, and make it
possible to see all switch events by adding option --all-switch-events.

Fixes: a92bf335fd82eeee ("perf scripts python: intel-pt-events.py: Add branches to script")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215080636.149562-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/scripts/python/intel-pt-events.py |   23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

--- a/tools/perf/scripts/python/intel-pt-events.py
+++ b/tools/perf/scripts/python/intel-pt-events.py
@@ -32,8 +32,7 @@ try:
 except:
 	broken_pipe_exception = IOError
 
-glb_switch_str		= None
-glb_switch_printed	= True
+glb_switch_str		= {}
 glb_insn		= False
 glb_disassembler	= None
 glb_src			= False
@@ -70,6 +69,7 @@ def trace_begin():
 	ap = argparse.ArgumentParser(usage = "", add_help = False)
 	ap.add_argument("--insn-trace", action='store_true')
 	ap.add_argument("--src-trace", action='store_true')
+	ap.add_argument("--all-switch-events", action='store_true')
 	global glb_args
 	global glb_insn
 	global glb_src
@@ -256,10 +256,6 @@ def print_srccode(comm, param_dict, samp
 	print(start_str, src_str)
 
 def do_process_event(param_dict):
-	global glb_switch_printed
-	if not glb_switch_printed:
-		print(glb_switch_str)
-		glb_switch_printed = True
 	event_attr = param_dict["attr"]
 	sample	   = param_dict["sample"]
 	raw_buf	   = param_dict["raw_buf"]
@@ -274,6 +270,11 @@ def do_process_event(param_dict):
 	dso    = get_optional(param_dict, "dso")
 	symbol = get_optional(param_dict, "symbol")
 
+	cpu = sample["cpu"]
+	if cpu in glb_switch_str:
+		print(glb_switch_str[cpu])
+		del glb_switch_str[cpu]
+
 	if name[0:12] == "instructions":
 		if glb_src:
 			print_srccode(comm, param_dict, sample, symbol, dso, True)
@@ -336,8 +337,6 @@ def auxtrace_error(typ, code, cpu, pid,
 		sys.exit(1)
 
 def context_switch(ts, cpu, pid, tid, np_pid, np_tid, machine_pid, out, out_preempt, *x):
-	global glb_switch_printed
-	global glb_switch_str
 	if out:
 		out_str = "Switch out "
 	else:
@@ -350,6 +349,10 @@ def context_switch(ts, cpu, pid, tid, np
 		machine_str = ""
 	else:
 		machine_str = "machine PID %d" % machine_pid
-	glb_switch_str = "%16s %5d/%-5d [%03u] %9u.%09u %5d/%-5d %s %s" % \
+	switch_str = "%16s %5d/%-5d [%03u] %9u.%09u %5d/%-5d %s %s" % \
 		(out_str, pid, tid, cpu, ts / 1000000000, ts %1000000000, np_pid, np_tid, machine_str, preempt_str)
-	glb_switch_printed = False
+	if glb_args.all_switch_events:
+		print(switch_str);
+	else:
+		global glb_switch_str
+		glb_switch_str[cpu] = switch_str

Re: [PATCH 5.15 28/73] net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register

[Florian Fainelli]

On 1/3/2022 6:23 AM, Greg Kroah-Hartman wrote:
> From: Miaoqian Lin <linmq006@gmail.com>
> 
> [ Upstream commit b45396afa4177f2b1ddfeff7185da733fade1dc3 ]
> 
> The fixed_phy_get_gpiod function() returns NULL, it doesn't return error
> pointers, using NULL checking to fix this.i
> 
> Fixes: 5468e82f7034 ("net: phy: fixed-phy: Drop GPIO from fixed_phy_add()")
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> Link: https://lore.kernel.org/r/20211224021500.10362-1-linmq006@gmail.com
> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> Signed-off-by: Sasha Levin <sashal@kernel.org>

Same as 5.4 and 5.10, this patch causes a regression on 5.15 as well and 
should be dropped. Since this is also affecting Linus' master a revert 
of that changes has been submitted to the net/master tree and should 
reach Linus' tree shortly assuming it gets applied:

https://lore.kernel.org/lkml/20220103193453.1214961-1-f.fainelli@gmail.com/

Thank you
-- 
Florian

Re: [PATCH 5.15 00/73] 5.15.13-rc1 review

[Guenter Roeck]

On Mon, Jan 03, 2022 at 03:23:21PM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.13 release.
> There are 73 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, 05 Jan 2022 14:20:40 +0000.
> Anything received after that time might be too late.
> 

Build results:
	total: 154 pass: 154 fail: 0
Qemu test results:
	total: 480 pass: 480 fail: 0

Tested-by: Guenter Roeck <linux@roeck-us.net>

Guenter

Re: [PATCH 5.15 00/73] 5.15.13-rc1 review

[Naresh Kamboju]

On Mon, 3 Jan 2022 at 20:02, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.15.13 release.
> There are 73 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, 05 Jan 2022 14:20:40 +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-5.15.13-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-5.15.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: 5.15.13-rc1
* git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* git branch: linux-5.15.y
* git commit: fbfd9867da50607c6a409bccb822c48823505929
* git describe: v5.15.12-74-gfbfd9867da50
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15.12-74-gfbfd9867da50

## No Test Regressions (compared to v5.15.11-129-g47b0c2878802)

## No Test Fixes (compared to v5.15.11-129-g47b0c2878802)

## Test result summary
total: 98758, pass: 84383, fail: 1055, skip: 12352, xfail: 968

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 263 total, 257 passed, 6 failed
* arm64: 42 total, 40 passed, 2 failed
* dragonboard-410c: 1 total, 1 passed, 0 failed
* hi6220-hikey: 1 total, 1 passed, 0 failed
* i386: 40 total, 37 passed, 3 failed
* juno-r2: 1 total, 1 passed, 0 failed
* mips: 37 total, 31 passed, 6 failed
* parisc: 14 total, 14 passed, 0 failed
* powerpc: 56 total, 50 passed, 6 failed
* riscv: 28 total, 19 passed, 9 failed
* s390: 22 total, 20 passed, 2 failed
* sh: 26 total, 24 passed, 2 failed
* sparc: 14 total, 14 passed, 0 failed
* x15: 1 total, 1 passed, 0 failed
* x86: 1 total, 1 passed, 0 failed
* x86_64: 42 total, 40 passed, 2 failed

## Test suites summary
* fwts
* kselftest-android
* kselftest-arm64
* kselftest-arm64/arm64.btitest.bti_c_func
* kselftest-arm64/arm64.btitest.bti_j_func
* kselftest-arm64/arm64.btitest.bti_jc_func
* kselftest-arm64/arm64.btitest.bti_none_func
* kselftest-arm64/arm64.btitest.nohint_func
* kselftest-arm64/arm64.btitest.paciasp_func
* kselftest-arm64/arm64.nobtitest.bti_c_func
* kselftest-arm64/arm64.nobtitest.bti_j_func
* kselftest-arm64/arm64.nobtitest.bti_jc_func
* kselftest-arm64/arm64.nobtitest.bti_none_func
* kselftest-arm64/arm64.nobtitest.nohint_func
* kselftest-arm64/arm64.nobtitest.paciasp_func
* kselftest-bpf
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-drivers
* kselftest-ef[
* 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-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
* prep-inline
* rcutorture
* ssuite
* v4l2-compliance

--
Linaro LKFT
https://lkft.linaro.org

Re: [PATCH 5.15 00/73] 5.15.13-rc1 review

[Rudi Heitbaum]

On Mon, Jan 03, 2022 at 03:23:21PM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.13 release.
> There are 73 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, 05 Jan 2022 14:20:40 +0000.
> Anything received after that time might be too late.

Hi Greg,

Looking good.

Run tested on:
- Intel Tiger Lake x86_64 (nuc11 i7-1165G7)

In addition: build tested on:
- Allwinner A64
- Allwinner H3
- Allwinner H5
- Allwinner H6
- NXP iMX6
- NXP iMX8
- Qualcomm Dragonboard
- Rockchip RK3288
- Rockchip RK3328
- Rockchip RK3399pro
- Samsung Exynos

Tested-by: Rudi Heitbaum <rudi@heitbaum.com>
--
Rudi

Re: [PATCH 5.15 28/73] net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register

[Greg Kroah-Hartman]

On Mon, Jan 03, 2022 at 11:47:34AM -0800, Florian Fainelli wrote:
> 
> 
> On 1/3/2022 6:23 AM, Greg Kroah-Hartman wrote:
> > From: Miaoqian Lin <linmq006@gmail.com>
> > 
> > [ Upstream commit b45396afa4177f2b1ddfeff7185da733fade1dc3 ]
> > 
> > The fixed_phy_get_gpiod function() returns NULL, it doesn't return error
> > pointers, using NULL checking to fix this.i
> > 
> > Fixes: 5468e82f7034 ("net: phy: fixed-phy: Drop GPIO from fixed_phy_add()")
> > Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> > Link: https://lore.kernel.org/r/20211224021500.10362-1-linmq006@gmail.com
> > Signed-off-by: Jakub Kicinski <kuba@kernel.org>
> > Signed-off-by: Sasha Levin <sashal@kernel.org>
> 
> Same as 5.4 and 5.10, this patch causes a regression on 5.15 as well and
> should be dropped. Since this is also affecting Linus' master a revert of
> that changes has been submitted to the net/master tree and should reach
> Linus' tree shortly assuming it gets applied:
> 
> https://lore.kernel.org/lkml/20220103193453.1214961-1-f.fainelli@gmail.com/

Thanks, I have dropped this from all 3 stable queues now.

greg k-h

Re: [PATCH 5.15 00/73] 5.15.13-rc1 review

[Jon Hunter]

On Mon, 03 Jan 2022 15:23:21 +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.13 release.
> There are 73 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, 05 Jan 2022 14:20:40 +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-5.15.13-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-5.15.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

All tests passing for Tegra ...

Test results for stable-v5.15:
    10 builds:	10 pass, 0 fail
    28 boots:	28 pass, 0 fail
    114 tests:	114 pass, 0 fail

Linux version:	5.15.13-rc1-gfbfd9867da50
Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
                tegra194-p2972-0000, tegra194-p3509-0000+p3668-0000,
                tegra20-ventana, tegra210-p2371-2180,
                tegra210-p3450-0000, tegra30-cardhu-a04

Tested-by: Jon Hunter <jonathanh@nvidia.com>

Jon