* [PATCH AUTOSEL 4.4 2/5] sparc64: fix pci_iounmap() when CONFIG_PCI is not set
2021-09-28 5:57 [PATCH AUTOSEL 4.4 1/5] xen-netback: correct success/error reporting for the SKB-with-fraglist case Sasha Levin
@ 2021-09-28 5:57 ` Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 3/5] ext2: fix sleeping in atomic bugs on error Sasha Levin
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Sasha Levin @ 2021-09-28 5:57 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Linus Torvalds, Guenter Roeck, David Miller, Sasha Levin, sparclinux
From: Linus Torvalds <torvalds@linux-foundation.org>
[ Upstream commit d8b1e10a2b8efaf71d151aa756052fbf2f3b6d57 ]
Guenter reported [1] that the pci_iounmap() changes remain problematic,
with sparc64 allnoconfig and tinyconfig still not building due to the
header file changes and confusion with the arch-specific pci_iounmap()
implementation.
I'm pretty convinced that sparc should just use GENERIC_IOMAP instead of
doing its own thing, since it turns out that the sparc64 version of
pci_iounmap() is somewhat buggy (see [2]). But in the meantime, this
just fixes the build by avoiding the trivial re-definition of the empty
case.
Link: https://lore.kernel.org/lkml/20210920134424.GA346531@roeck-us.net/ [1]
Link: https://lore.kernel.org/lkml/CAHk-=wgheheFx9myQyy5osh79BAazvmvYURAtub2gQtMvLrhqQ@mail.gmail.com/ [2]
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/sparc/lib/iomap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index c4d42a50ebc0..fa4abbaf27de 100644
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -18,8 +18,10 @@ void ioport_unmap(void __iomem *addr)
EXPORT_SYMBOL(ioport_map);
EXPORT_SYMBOL(ioport_unmap);
+#ifdef CONFIG_PCI
void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
{
/* nothing to do */
}
EXPORT_SYMBOL(pci_iounmap);
+#endif
--
2.33.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH AUTOSEL 4.4 3/5] ext2: fix sleeping in atomic bugs on error
2021-09-28 5:57 [PATCH AUTOSEL 4.4 1/5] xen-netback: correct success/error reporting for the SKB-with-fraglist case Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 2/5] sparc64: fix pci_iounmap() when CONFIG_PCI is not set Sasha Levin
@ 2021-09-28 5:57 ` Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 4/5] scsi: sd: Free scsi_disk device via put_device() Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 5/5] usb: testusb: Fix for showing the connection speed Sasha Levin
3 siblings, 0 replies; 5+ messages in thread
From: Sasha Levin @ 2021-09-28 5:57 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Dan Carpenter, Jan Kara, Sasha Levin, jack, linux-ext4
From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit 372d1f3e1bfede719864d0d1fbf3146b1e638c88 ]
The ext2_error() function syncs the filesystem so it sleeps. The caller
is holding a spinlock so it's not allowed to sleep.
ext2_statfs() <- disables preempt
-> ext2_count_free_blocks()
-> ext2_get_group_desc()
Fix this by using WARN() to print an error message and a stack trace
instead of using ext2_error().
Link: https://lore.kernel.org/r/20210921203233.GA16529@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext2/balloc.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 9f9992b37924..2e4747e0aaf0 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -46,10 +46,9 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
struct ext2_sb_info *sbi = EXT2_SB(sb);
if (block_group >= sbi->s_groups_count) {
- ext2_error (sb, "ext2_get_group_desc",
- "block_group >= groups_count - "
- "block_group = %d, groups_count = %lu",
- block_group, sbi->s_groups_count);
+ WARN(1, "block_group >= groups_count - "
+ "block_group = %d, groups_count = %lu",
+ block_group, sbi->s_groups_count);
return NULL;
}
@@ -57,10 +56,9 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
group_desc = block_group >> EXT2_DESC_PER_BLOCK_BITS(sb);
offset = block_group & (EXT2_DESC_PER_BLOCK(sb) - 1);
if (!sbi->s_group_desc[group_desc]) {
- ext2_error (sb, "ext2_get_group_desc",
- "Group descriptor not loaded - "
- "block_group = %d, group_desc = %lu, desc = %lu",
- block_group, group_desc, offset);
+ WARN(1, "Group descriptor not loaded - "
+ "block_group = %d, group_desc = %lu, desc = %lu",
+ block_group, group_desc, offset);
return NULL;
}
--
2.33.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH AUTOSEL 4.4 4/5] scsi: sd: Free scsi_disk device via put_device()
2021-09-28 5:57 [PATCH AUTOSEL 4.4 1/5] xen-netback: correct success/error reporting for the SKB-with-fraglist case Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 2/5] sparc64: fix pci_iounmap() when CONFIG_PCI is not set Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 3/5] ext2: fix sleeping in atomic bugs on error Sasha Levin
@ 2021-09-28 5:57 ` Sasha Levin
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 5/5] usb: testusb: Fix for showing the connection speed Sasha Levin
3 siblings, 0 replies; 5+ messages in thread
From: Sasha Levin @ 2021-09-28 5:57 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Ming Lei, Bart Van Assche, Christoph Hellwig,
Martin K . Petersen, Sasha Levin, jejb, linux-scsi
From: Ming Lei <ming.lei@redhat.com>
[ Upstream commit 265dfe8ebbabae7959060bd1c3f75c2473b697ed ]
After a device is initialized via device_initialize() it should be freed
via put_device(). sd_probe() currently gets this wrong, fix it up.
Link: https://lore.kernel.org/r/20210906090112.531442-1-ming.lei@redhat.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/sd.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 9176fb1b1615..935add4d6f83 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3146,15 +3146,16 @@ static int sd_probe(struct device *dev)
}
device_initialize(&sdkp->dev);
- sdkp->dev.parent = dev;
+ sdkp->dev.parent = get_device(dev);
sdkp->dev.class = &sd_disk_class;
dev_set_name(&sdkp->dev, "%s", dev_name(dev));
error = device_add(&sdkp->dev);
- if (error)
- goto out_free_index;
+ if (error) {
+ put_device(&sdkp->dev);
+ goto out;
+ }
- get_device(dev);
dev_set_drvdata(dev, sdkp);
get_device(&sdkp->dev); /* prevent release before async_schedule */
--
2.33.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH AUTOSEL 4.4 5/5] usb: testusb: Fix for showing the connection speed
2021-09-28 5:57 [PATCH AUTOSEL 4.4 1/5] xen-netback: correct success/error reporting for the SKB-with-fraglist case Sasha Levin
` (2 preceding siblings ...)
2021-09-28 5:57 ` [PATCH AUTOSEL 4.4 4/5] scsi: sd: Free scsi_disk device via put_device() Sasha Levin
@ 2021-09-28 5:57 ` Sasha Levin
3 siblings, 0 replies; 5+ messages in thread
From: Sasha Levin @ 2021-09-28 5:57 UTC (permalink / raw)
To: linux-kernel, stable; +Cc: Faizel K B, Greg Kroah-Hartman, Sasha Levin
From: Faizel K B <faizel.kb@dicortech.com>
[ Upstream commit f81c08f897adafd2ed43f86f00207ff929f0b2eb ]
testusb' application which uses 'usbtest' driver reports 'unknown speed'
from the function 'find_testdev'. The variable 'entry->speed' was not
updated from the application. The IOCTL mentioned in the FIXME comment can
only report whether the connection is low speed or not. Speed is read using
the IOCTL USBDEVFS_GET_SPEED which reports the proper speed grade. The
call is implemented in the function 'handle_testdev' where the file
descriptor was availble locally. Sample output is given below where 'high
speed' is printed as the connected speed.
sudo ./testusb -a
high speed /dev/bus/usb/001/011 0
/dev/bus/usb/001/011 test 0, 0.000015 secs
/dev/bus/usb/001/011 test 1, 0.194208 secs
/dev/bus/usb/001/011 test 2, 0.077289 secs
/dev/bus/usb/001/011 test 3, 0.170604 secs
/dev/bus/usb/001/011 test 4, 0.108335 secs
/dev/bus/usb/001/011 test 5, 2.788076 secs
/dev/bus/usb/001/011 test 6, 2.594610 secs
/dev/bus/usb/001/011 test 7, 2.905459 secs
/dev/bus/usb/001/011 test 8, 2.795193 secs
/dev/bus/usb/001/011 test 9, 8.372651 secs
/dev/bus/usb/001/011 test 10, 6.919731 secs
/dev/bus/usb/001/011 test 11, 16.372687 secs
/dev/bus/usb/001/011 test 12, 16.375233 secs
/dev/bus/usb/001/011 test 13, 2.977457 secs
/dev/bus/usb/001/011 test 14 --> 22 (Invalid argument)
/dev/bus/usb/001/011 test 17, 0.148826 secs
/dev/bus/usb/001/011 test 18, 0.068718 secs
/dev/bus/usb/001/011 test 19, 0.125992 secs
/dev/bus/usb/001/011 test 20, 0.127477 secs
/dev/bus/usb/001/011 test 21 --> 22 (Invalid argument)
/dev/bus/usb/001/011 test 24, 4.133763 secs
/dev/bus/usb/001/011 test 27, 2.140066 secs
/dev/bus/usb/001/011 test 28, 2.120713 secs
/dev/bus/usb/001/011 test 29, 0.507762 secs
Signed-off-by: Faizel K B <faizel.kb@dicortech.com>
Link: https://lore.kernel.org/r/20210902114444.15106-1-faizel.kb@dicortech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/usb/testusb.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/tools/usb/testusb.c b/tools/usb/testusb.c
index 0692d99b6d8f..18c895654e76 100644
--- a/tools/usb/testusb.c
+++ b/tools/usb/testusb.c
@@ -278,12 +278,6 @@ static int find_testdev(const char *name, const struct stat *sb, int flag)
}
entry->ifnum = ifnum;
-
- /* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */
-
- fprintf(stderr, "%s speed\t%s\t%u\n",
- speed(entry->speed), entry->name, entry->ifnum);
-
entry->next = testdevs;
testdevs = entry;
return 0;
@@ -312,6 +306,14 @@ static void *handle_testdev (void *arg)
return 0;
}
+ status = ioctl(fd, USBDEVFS_GET_SPEED, NULL);
+ if (status < 0)
+ fprintf(stderr, "USBDEVFS_GET_SPEED failed %d\n", status);
+ else
+ dev->speed = status;
+ fprintf(stderr, "%s speed\t%s\t%u\n",
+ speed(dev->speed), dev->name, dev->ifnum);
+
restart:
for (i = 0; i < TEST_CASES; i++) {
if (dev->test != -1 && dev->test != i)
--
2.33.0
^ permalink raw reply related [flat|nested] 5+ messages in thread