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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core fix from Ingo Molnar:
"Fix a CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y bug on older Clang versions"
* tag 'core-urgent-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kbuild: Disable CC_HAS_ASM_GOTO_OUTPUT on clang < 17
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clang < 17 fails to use scope local labels with CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y:
{
__label__ local_lbl;
...
unsafe_get_user(uval, uaddr, local_lbl);
...
return 0;
local_lbl:
return -EFAULT;
}
when two such scopes exist in the same function:
error: cannot jump from this asm goto statement to one of its possible targets
There are other failure scenarios. Shuffling code around slightly makes it
worse and fail even with one instance.
That issue prevents using local labels for a cleanup based user access
mechanism.
After failed attempts to provide a simple enough test case for the 'depends
on' test in Kconfig, the initial cure was to mark ASM goto broken on clang
versions < 17 to get this road block out of the way.
But Nathan pointed out that this is a known clang issue and indeed affects
clang < version 17 in combination with cleanup(). It's not even required to
use local labels for that.
The clang issue tracker has a small enough test case, which can be used as
a test in the 'depends on' section of CC_HAS_ASM_GOTO_OUTPUT:
void bar(void **);
void* baz(void);
int foo (void) {
{
asm goto("jmp %l0"::::l0);
return 0;
l0:
return 1;
}
void *x __attribute__((cleanup(bar))) = baz();
{
asm goto("jmp %l0"::::l1);
return 42;
l1:
return 0xff;
}
}
Add another dependency to config CC_HAS_ASM_GOTO_OUTPUT for it and use the
clang issue tracker test case for detection by condensing it to obfuscated
C-code contest format. This reliably catches the problem on clang < 17 and
did not show any issues on the non broken GCC versions.
That test might be sufficient to catch all issues and therefore could
replace the existing test, but keeping that around does no harm either.
Thanks to Nathan for pointing to the relevant clang issue!
Suggested-by: Nathan Chancellor <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Reviewed-by: Nathan Chancellor <[email protected]>
Link: https://github.com/ClangBuiltLinux/linux/issues/1886
Link: https://github.com/llvm/llvm-project/commit/f023f5cdb2e6c19026f04a15b5a935c041835d14
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Pull smb client fixes from Steve French:
- Fix unlink bug
- Fix potential out of bounds access in processing compound requests
* tag 'v6.17rc7-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: fix wrong index reference in smb2_compound_op()
smb: client: handle unlink(2) of files open by different clients
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In smb2_compound_op(), the loop that processes each command's response
uses wrong indices when accessing response bufferes.
This incorrect indexing leads to improper handling of command results.
Also, if incorrectly computed index is greather than or equal to
MAX_COMPOUND, it can cause out-of-bounds accesses.
Fixes: 3681c74d342d ("smb: client: handle lack of EA support in smb2_query_path_info()") # 6.14
Reviewed-by: Paulo Alcantara (Red Hat) <[email protected]>
Signed-off-by: Sang-Heon Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
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In order to identify whether a certain file is open by a different
client, start the unlink process by sending a compound request of
CREATE(DELETE_ON_CLOSE) + CLOSE with only FILE_SHARE_DELETE bit set in
smb2_create_req::ShareAccess. If the file is currently open, then the
server will fail the request with STATUS_SHARING_VIOLATION, in which
case we'll map it to -EBUSY, so __cifs_unlink() will fall back to
silly-rename the file.
This fixes the following case where open(O_CREAT) fails with
-ENOENT (STATUS_DELETE_PENDING) due to file still open by a different
client.
* Before patch
$ mount.cifs //srv/share /mnt/1 -o ...,nosharesock
$ mount.cifs //srv/share /mnt/2 -o ...,nosharesock
$ cd /mnt/1
$ touch foo
$ exec 3<>foo
$ cd /mnt/2
$ rm foo
$ touch foo
touch: cannot touch 'foo': No such file or directory
$ exec 3>&-
* After patch
$ mount.cifs //srv/share /mnt/1 -o ...,nosharesock
$ mount.cifs //srv/share /mnt/2 -o ...,nosharesock
$ cd /mnt/1
$ touch foo
$ exec 3<>foo
$ cd /mnt/2
$ rm foo
$ touch foo
$ exec 3>&-
Signed-off-by: Paulo Alcantara (Red Hat) <[email protected]>
Reviewed-by: David Howells <[email protected]>
Cc: Frank Sorenson <[email protected]>
Cc: [email protected]
Signed-off-by: Steve French <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Prevent double unlock in netfs
- Fix a NULL pointer dereference in afs_put_server()
- Fix a reference leak in netfs
* tag 'vfs-6.17-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
netfs: fix reference leak
afs: Fix potential null pointer dereference in afs_put_server
netfs: Prevent duplicate unlocking
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Commit 20d72b00ca81 ("netfs: Fix the request's work item to not
require a ref") modified netfs_alloc_request() to initialize the
reference counter to 2 instead of 1. The rationale was that the
requet's "work" would release the second reference after completion
(via netfs_{read,write}_collection_worker()). That works most of the
time if all goes well.
However, it leaks this additional reference if the request is released
before the I/O operation has been submitted: the error code path only
decrements the reference counter once and the work item will never be
queued because there will never be a completion.
This has caused outages of our whole server cluster today because
tasks were blocked in netfs_wait_for_outstanding_io(), leading to
deadlocks in Ceph (another bug that I will address soon in another
patch). This was caused by a netfs_pgpriv2_begin_copy_to_cache() call
which failed in fscache_begin_write_operation(). The leaked
netfs_io_request was never completed, leaving `netfs_inode.io_count`
with a positive value forever.
All of this is super-fragile code. Finding out which code paths will
lead to an eventual completion and which do not is hard to see:
- Some functions like netfs_create_write_req() allocate a request, but
will never submit any I/O.
- netfs_unbuffered_read_iter_locked() calls netfs_unbuffered_read()
and then netfs_put_request(); however, netfs_unbuffered_read() can
also fail early before submitting the I/O request, therefore another
netfs_put_request() call must be added there.
A rule of thumb is that functions that return a `netfs_io_request` do
not submit I/O, and all of their callers must be checked.
For my taste, the whole netfs code needs an overhaul to make reference
counting easier to understand and less fragile & obscure. But to fix
this bug here and now and produce a patch that is adequate for a
stable backport, I tried a minimal approach that quickly frees the
request object upon early failure.
I decided against adding a second netfs_put_request() each time
because that would cause code duplication which obscures the code
further. Instead, I added the function netfs_put_failed_request()
which frees such a failed request synchronously under the assumption
that the reference count is exactly 2 (as initially set by
netfs_alloc_request() and never touched), verified by a
WARN_ON_ONCE(). It then deinitializes the request object (without
going through the "cleanup_work" indirection) and frees the allocation
(with RCU protection to protect against concurrent access by
netfs_requests_seq_start()).
All code paths that fail early have been changed to call
netfs_put_failed_request() instead of netfs_put_request().
Additionally, I have added a netfs_put_request() call to
netfs_unbuffered_read() as explained above because the
netfs_put_failed_request() approach does not work there.
Fixes: 20d72b00ca81 ("netfs: Fix the request's work item to not require a ref")
Signed-off-by: Max Kellermann <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: Paulo Alcantara <[email protected]>
cc: [email protected]
cc: [email protected]
cc: [email protected]
Signed-off-by: Christian Brauner <[email protected]>
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afs_put_server() accessed server->debug_id before the NULL check, which
could lead to a null pointer dereference. Move the debug_id assignment,
ensuring we never dereference a NULL server pointer.
Fixes: 2757a4dc1849 ("afs: Fix access after dec in put functions")
Cc: [email protected]
Signed-off-by: Zhen Ni <[email protected]>
Acked-by: David Howells <[email protected]>
Reviewed-by: Jeffrey Altman <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
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The filio lock has been released here, so there is no need to jump to
error_folio_unlock to release it again.
Reported-by: [email protected]
Closes: https://syzkaller.appspot.com/bug?extid=b73c7d94a151e2ee1e9b
Signed-off-by: Lizhi Xu <[email protected]>
Acked-by: David Howells <[email protected]>
Reviewed-by: Paulo Alcantara (Red Hat) <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain fix from Ulf Hansson:
- mediatek: Make sure MT8195 AUDIO power domain isn't left powered-on
* tag 'pmdomain-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
pmdomain: mediatek: set default off flag for MT8195 AUDIO power domain
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In MT8195 power domain data array, set the KEEP_DEFAULT_OFF and
ACTIVE_WAKEUP flags for the AUDIO power domain entry to avoid
having this domain being on during boot sequence when unneeded.
Fixes: 0e789b491ba0 ("pmdomain: core: Leave powered-on genpds on until sync_state")
Fixes: 13a4b7fb6260 ("pmdomain: core: Leave powered-on genpds on until late_initcall_sync")
Signed-off-by: Louis-Alexis Eyraud <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
"Fixes and New HW Supoort
- amd/pmc: Use 8042 quirk for Stellaris Slim Gen6 AMD
- dell: Set USTT mode according to BIOS after reboot
- dell-lis3lv02d: Add Latitude E6530
- lg-laptop: Fix setting the fan mode"
* tag 'platform-drivers-x86-v6.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: lg-laptop: Fix WMAB call in fan_mode_store()
platform/x86: dell-lis3lv02d: Add Latitude E6530
platform/x86/dell: Set USTT mode according to BIOS after reboot
platform/x86/amd/pmc: Add Stellaris Slim Gen6 AMD to spurious 8042 quirks list
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When WMAB is called to set the fan mode, the new mode is read from either
bits 0-1 or bits 4-5 (depending on the value of some other EC register).
Thus when WMAB is called with bits 4-5 zeroed and called again with
bits 0-1 zeroed, the second call undoes the effect of the first call.
This causes writes to /sys/devices/platform/lg-laptop/fan_mode to have
no effect (and causes reads to always report a status of zero).
Fix this by calling WMAB once, with the mode set in bits 0,1 and 4,5.
When the fan mode is returned from WMAB it always has this form, so
there is no need to preserve the other bits. As a bonus, the driver
now supports the "Performance" fan mode seen in the LG-provided Windows
control app, which provides less aggressive CPU throttling but louder
fan noise and shorter battery life.
Also, correct the documentation to reflect that 0 corresponds to the
default mode (what the Windows app calls "Optimal") and 1 corresponds
to the silent mode.
Fixes: dbf0c5a6b1f8 ("platform/x86: Add LG Gram laptop special features driver")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=204913#c4
Signed-off-by: Daniel Lee <[email protected]>
Link: https://patch.msgid.link/MN2PR06MB55989CB10E91C8DA00EE868DDC1CA@MN2PR06MB5598.namprd06.prod.outlook.com
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>
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Add 0x29 as the accelerometer address for the Dell Latitude E6530 to
lis3lv02d_devices[].
The address was verified as below:
$ cd /sys/bus/pci/drivers/i801_smbus/0000:00:1f.3
$ ls -d i2c-*
i2c-20
$ sudo modprobe i2c-dev
$ sudo i2cdetect 20
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-20.
I will probe address range 0x08-0x77.
Continue? [Y/n] Y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: 08 -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- UU -- 2b -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- --
50: UU -- 52 -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- 61 -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-linux-cachyos-bore root=UUID=<redacted> rw loglevel=3 quiet dell_lis3lv02d.probe_i2c_addr=1
$ sudo dmesg
[ 0.000000] Linux version 6.16.6-2-cachyos-bore (linux-cachyos-bore@cachyos) (gcc (GCC) 15.2.1 20250813, GNU ld (GNU Binutils) 2.45.0) #1 SMP PREEMPT_DYNAMIC Thu, 11 Sep 2025 16:01:12 +0000
[…]
[ 0.000000] DMI: Dell Inc. Latitude E6530/07Y85M, BIOS A22 11/30/2018
[…]
[ 5.166442] i2c i2c-20: Probing for lis3lv02d on address 0x29
[ 5.167854] i2c i2c-20: Detected lis3lv02d on address 0x29, please report this upstream to [email protected] so that a quirk can be added
Signed-off-by: Nickolay Goppen <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Link: https://patch.msgid.link/20250917-dell-lis3lv02d-latitude-e6530-v1-1-8a6dec4e51e9@mainlining.org
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>
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After a reboot, if the user changes the thermal setting in the BIOS, the
BIOS applies this change. However, the current `dell-pc` driver does not
recognize the updated USTT value, resulting in inconsistent thermal
profiles between Windows and Linux.
To ensure alignment with Windows behavior, read the current USTT settings
during driver initialization and update the dell-pc USTT profile
accordingly whenever a change is detected.
Cc: Yijun Shen <[email protected]>
Co-developed-by: Patil Rajesh Reddy <[email protected]>
Signed-off-by: Patil Rajesh Reddy <[email protected]>
Signed-off-by: Shyam Sundar S K <[email protected]>
Reviewed-by: Lyndon Sanche <[email protected]>
Reviewed-by: Mario Limonciello (AMD) <[email protected]>
Tested-By: Yijun Shen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>
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Prevents instant wakeup ~1s after suspend
Signed-off-by: Christoffer Sandberg <[email protected]>
Signed-off-by: Werner Sembach <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- allow looking up GPIOs by the secondary firmware node too
- fix memory leak in gpio-regmap
* tag 'gpio-fixes-for-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: regmap: fix memory leak of gpio_regmap structure
gpiolib: Extend software-node support to support secondary software-nodes
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The gpio_regmap structure is leaked on the error path. Fix this by
jumping to the appropriate kfree instead of returning directly.
Fixes: db305161880a ("gpio: regmap: Allow ngpio to be read from the property")
Signed-off-by: Ioana Ciornei <[email protected]>
Suggested-by: Michael Walle <[email protected]>
Reviewed-by: Michael Walle <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>
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When a software-node gets added to a device which already has another
fwnode as primary node it will become the secondary fwnode for that
device.
Currently if a software-node with GPIO properties ends up as the secondary
fwnode then gpiod_find_by_fwnode() will fail to find the GPIOs.
Add a new gpiod_fwnode_lookup() helper which falls back to calling
gpiod_find_by_fwnode() with the secondary fwnode if the GPIO was not
found in the primary fwnode.
Fixes: e7f9ff5dc90c ("gpiolib: add support for software nodes")
Cc: [email protected]
Signed-off-by: Hans de Goede <[email protected]>
Reviewed-by: Dmitry Torokhov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
"A regression fix for this series where an attempt to silence an EOD
error got messed up a bit, and then a change of git trees for the
block and io_uring trees.
Switching the git trees to kernel.org now, as I've just about had it
trying to battle AI bots that bring the box to its knees, continually.
At least I don't have to maintain the kernel.org side"
* tag 'block-6.17-20250925' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
MAINTAINERS: update io_uring and block tree git trees
block: fix EOD return for device with nr_sectors == 0
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Move to using the git.kernel.org trees as the canonical trees for both
the block and io_uring tree.
Signed-off-by: Jens Axboe <[email protected]>
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A recent commit skipped dumping the usual "attempt to access beyond end
of device" message if the device size is 0 sectors, as that's a common
pattern for devices that have been hot removed. But while it stopped
that message, it also prevented returning -EIO for that condition.
Reinstate the -EIO return, while retaining the quiet operation for
triggering EOD for a device with 0 sectors.
Reported-by: [email protected]
Reported-by: Sahil Chandna <[email protected]>
Fixes: d0a2b527d8c3 ("block: tone down bio_check_eod")
Tested-by: Sahil Chandna <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Pull drm fixes from Dave Airlie:
"Weekly fixes, some fbcon font handling fixes, then amdgpu/xe/i915 with
a few, and a few misc fixes for other drivers. Seems about right for
this stage, and I don't know of anything outstanding.
fbcon:
- fix OOB access in font allocation
- fix integer overflow in font handling
amdgpu:
- Backlight fix
- DC preblend fix
- DCN 3.5 fix
- Cleanup output_tf_change
xe:
- Don't expose sysfs attributes not applicable for VFs
- Fix build with CONFIG_MODULES=n
- Don't copy pinned kernel bos twice on suspend
i915:
- Set O_LARGEFILE in __create_shmem()
- Guard reg_val against a INVALID_TRANSCODER [ddi]
ast:
- sleeps causing cpu stall fix
panthor:
- scheduler race condition fix
gma500:
- NULL ptr deref in hdmi teardown fix"
* tag 'drm-fixes-2025-09-26' of https://gitlab.freedesktop.org/drm/kernel:
drm/panthor: Defer scheduler entitiy destruction to queue release
drm/amd/display: remove output_tf_change flag
drm/amd/display: Init DCN35 clocks from pre-os HW values
drm/amd/display: Use mpc.preblend flag to indicate preblend
drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume
fbcon: Fix OOB access in font allocation
drm/i915/ddi: Guard reg_val against a INVALID_TRANSCODER
drm/i915: set O_LARGEFILE in __create_shmem()
drm/xe: Don't copy pinned kernel bos twice on suspend
drm/xe: Fix build with CONFIG_MODULES=n
drm/xe/vf: Don't expose sysfs attributes not applicable for VFs
fbcon: fix integer overflow in fbcon_do_set_font
drm/gma500: Fix null dereference in hdmi teardown
drm/ast: Use msleep instead of mdelay for edid read
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
- Don't expose sysfs attributes not applicable for VFs (Michal)
- Fix build with CONFIG_MODULES=n (Lucas)
- Don't copy pinned kernel bos twice on suspend (Thomas)
Signed-off-by: Dave Airlie <[email protected]>
From: Rodrigo Vivi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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We were copying the bo content the bos on the list
"xe->pinned.late.kernel_bo_present" twice on suspend.
Presumingly the intent is to copy the pinned external bos on
the first pass.
This is harmless since we (currently) should have no pinned
external bos needing copy since
a) exernal system bos don't have compressed content,
b) We do not (yet) allow pinning of VRAM bos.
Still, fix this up so that we copy pinned external bos on
the first pass. We're about to allow bos pinned in VRAM.
Fixes: c6a4d46ec1d7 ("drm/xe: evict user memory in PM notifier")
Cc: Matthew Auld <[email protected]>
Cc: <[email protected]> # v6.16+
Signed-off-by: Thomas Hellström <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
(cherry picked from commit 9e69bafece43dcefec864f00b3ec7e088aa7fcbc)
Signed-off-by: Rodrigo Vivi <[email protected]>
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When building with CONFIG_MODULES=n, the __exit functions are dropped.
However our init functions may call them for error handling, so they are
not good candidates for the exit sections.
Fix this error reported by 0day:
ld.lld: error: relocation refers to a symbol in a discarded section: xe_configfs_exit
>>> defined in vmlinux.a(drivers/gpu/drm/xe/xe_configfs.o)
>>> referenced by xe_module.c
>>> drivers/gpu/drm/xe/xe_module.o:(init_funcs) in archive vmlinux.a
This is the only exit function using __exit. Drop it to fix the build.
Cc: Riana Tauro <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Fixes: 16280ded45fb ("drm/xe: Add configfs to enable survivability mode")
Reviewed-by: Balasubramani Vivekanandan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lucas De Marchi <[email protected]>
(cherry picked from commit d9b2623319fa20c2206754284291817488329648)
Signed-off-by: Rodrigo Vivi <[email protected]>
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VFs can't read BMG_PCIE_CAP(0x138340) register nor access PCODE
(already guarded by the info.skip_pcode flag) so we shouldn't
expose attributes that require any of them to avoid errors like:
[] xe 0000:03:00.1: [drm] Tile0: GT0: VF is trying to read an \
inaccessible register 0x138340+0x0
[] RIP: 0010:xe_gt_sriov_vf_read32+0x6c2/0x9a0 [xe]
[] Call Trace:
[] xe_mmio_read32+0x110/0x280 [xe]
[] auto_link_downgrade_capable_show+0x2e/0x70 [xe]
[] dev_attr_show+0x1a/0x70
[] sysfs_kf_seq_show+0xaa/0x120
[] kernfs_seq_show+0x41/0x60
Fixes: 0e414bf7ad01 ("drm/xe: Expose PCIe link downgrade attributes")
Fixes: cdc36b66cd41 ("drm/xe: Expose fan control and voltage regulator version")
Signed-off-by: Michal Wajdeczko <[email protected]>
Cc: Lucas De Marchi <[email protected]>
Cc: Lukasz Laguna <[email protected]>
Reviewed-by: Raag Jadav <[email protected]>
Reviewed-by: Lucas De Marchi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
(cherry picked from commit a2d6223d224f333f705ed8495bf8bebfbc585c35)
Signed-off-by: Rodrigo Vivi <[email protected]>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
A CPU stall fix for ast, a NULL pointer dereference fix for gma500, an
OOB and overflow fixes for fbcon, and a race condition fix for panthor.
Signed-off-by: Dave Airlie <[email protected]>
From: Maxime Ripard <[email protected]>
Link: https://lore.kernel.org/r/20250925-smilodon-of-luxurious-genius-4ebee7@penduick
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Commit de8548813824 ("drm/panthor: Add the scheduler logical block")
handled destruction of a group's queues' drm scheduler entities early
into the group destruction procedure.
However, that races with the group submit ioctl, because by the time
entities are destroyed (through the group destroy ioctl), the submission
procedure might've already obtained a group handle, and therefore the
ability to push jobs into entities. This is met with a DRM error message
within the drm scheduler core as a situation that should never occur.
Fix by deferring drm scheduler entity destruction to queue release time.
Fixes: de8548813824 ("drm/panthor: Add the scheduler logical block")
Signed-off-by: Adrián Larumbe <[email protected]>
Reviewed-by: Steven Price <[email protected]>
Reviewed-by: Boris Brezillon <[email protected]>
Signed-off-by: Steven Price <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Commit 1a194e6c8e1e ("fbcon: fix integer overflow in fbcon_do_set_font")
introduced an out-of-bounds access by storing data and allocation sizes
in the same variable. Restore the old size calculation and use the new
variable 'alloc_size' for the allocation.
Signed-off-by: Thomas Zimmermann <[email protected]>
Fixes: 1a194e6c8e1e ("fbcon: fix integer overflow in fbcon_do_set_font")
Reported-by: Jani Nikula <[email protected]>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15020
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6201
Cc: Samasth Norway Ananda <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: George Kennedy <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Simona Vetter <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: "Ville Syrjälä" <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Qianqiang Liu <[email protected]>
Cc: Shixiong Ou <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: <[email protected]> # v5.9+
Cc: Zsolt Kajtar <[email protected]>
Reviewed-by: Lucas De Marchi <[email protected]>
Reviewed-by: Qianqiang Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Fix integer overflow vulnerabilities in fbcon_do_set_font() where font
size calculations could overflow when handling user-controlled font
parameters.
The vulnerabilities occur when:
1. CALC_FONTSZ(h, pitch, charcount) performs h * pith * charcount
multiplication with user-controlled values that can overflow.
2. FONT_EXTRA_WORDS * sizeof(int) + size addition can also overflow
3. This results in smaller allocations than expected, leading to buffer
overflows during font data copying.
Add explicit overflow checking using check_mul_overflow() and
check_add_overflow() kernel helpers to safety validate all size
calculations before allocation.
Signed-off-by: Samasth Norway Ananda <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Fixes: 39b3cffb8cf3 ("fbcon: prevent user font height or width change from causing potential out-of-bounds access")
Cc: George Kennedy <[email protected]>
Cc: stable <[email protected]>
Cc: [email protected]
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Simona Vetter <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: "Ville Syrjälä" <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Qianqiang Liu <[email protected]>
Cc: Shixiong Ou <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: <[email protected]> # v5.9+
Signed-off-by: Thomas Zimmermann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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pci_set_drvdata sets the value of pdev->driver_data to NULL,
after which the driver_data obtained from the same dev is
dereferenced in oaktrail_hdmi_i2c_exit, and the i2c_dev is
extracted from it. To prevent this, swap these calls.
Found by Linux Verification Center (linuxtesting.org) with Svacer.
Fixes: 1b082ccf5901 ("gma500: Add Oaktrail support")
Signed-off-by: Zabelin Nikita <[email protected]>
Signed-off-by: Patrik Jakobsson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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The busy-waiting in `mdelay()` can cause CPU stalls and kernel timeouts
during boot.
Signed-off-by: Nirmoy Das <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Tested-by: Carol L Soto [email protected]<mailto:[email protected]>
Fixes: 594e9c04b586 ("drm/ast: Create the driver for ASPEED proprietory Display-Port")
Cc: KuoHsiang Chou <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Jocelyn Falempe <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # v5.19+
Signed-off-by: Thomas Zimmermann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Set O_LARGEFILE in __create_shmem() (Taotao Chen)
- Guard reg_val against a INVALID_TRANSCODER [ddi] (Suraj Kandpal)
Signed-off-by: Dave Airlie <[email protected]>
From: Tvrtko Ursulin <[email protected]>
Link: https://lore.kernel.org/r/aNTxWfhsMkFZ3Q-a@linux
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Currently we check if the encoder is INVALID or -1 and throw a
WARN_ON but we still end up writing the temp value which will
overflow and corrupt the whole programmed value.
--v2
-Assign a bogus transcoder to master in case we get a INVALID
TRANSCODER [Jani]
Fixes: 6671c367a9bea ("drm/i915/tgl: Select master transcoder for MST stream")
Signed-off-by: Suraj Kandpal <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
(cherry picked from commit c8e8e9ab14a6ea926641d161768e1e3ef286a853)
Signed-off-by: Tvrtko Ursulin <[email protected]>
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Without O_LARGEFILE, file->f_op->write_iter calls
generic_write_check_limits(), which enforces a 2GB (MAX_NON_LFS) limit,
causing -EFBIG on large writes.
In shmem_pwrite(), this error is later masked as -EIO due to the error
handling order, leading to igt failures like gen9_exec_parse(bb-large).
Set O_LARGEFILE in __create_shmem() to prevent -EFBIG on large writes.
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-lkp/[email protected]
Fixes: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter")
Signed-off-by: Taotao Chen <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
(cherry picked from commit e296a2266c572a7537e638b0dbbfc66d11df46f9)
Signed-off-by: Tvrtko Ursulin <[email protected]>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.17-2025-09-24:
amdgpu:
- Backlight fix
- DC preblend fix
- DCN 3.5 fix
- Cleanup output_tf_change
Signed-off-by: Dave Airlie <[email protected]>
From: Alex Deucher <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Remove this flag as the driver stopped managing it individually since
commit a4056c2a6344 ("drm/amd/display: use HW hdr mult for brightness
boost"). After some back and forth it was reintroduced as a condition to
`set_output_transfer_func()` in [1]. Without direct management, this
flag only changes value when all surface update flags are set true on
UPDATE_TYPE_FULL with no output TF status meaning.
Fixes: bb622e0c0044 ("drm/amd/display: program output tf when required") [1]
Signed-off-by: Melissa Wen <[email protected]>
Reviewed-by: Alex Hung <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit 752e6f283ec59ae007aa15a93d5a4b2eefa8cec9)
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[Why]
We did not initialize dc clocks with boot-time hw values during init.
This lead to incorrect clock values in dc, causing `dcn35_update_clocks`
to make incorrect updates.
[How]
Correctly initialize DC with pre-os clk values from HW.
s/dump/save/ as that accurately reflects the purpose of the functions.
Fixes: 8774029f76b9 ("drm/amd/display: Add DCN35 CLK_MGR")
Reviewed-by: Aurabindo Pillai <[email protected]>
Signed-off-by: Leo Li <[email protected]>
Signed-off-by: Fangzhi Zuo <[email protected]>
Signed-off-by: Ivan Lipski <[email protected]>
Tested-by: Dan Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit d43cc4ea1f9d720ab4bf06806f79260bfe981508)
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[Description]
Modifications in per asic capability means mpc.preblend flag should be used
to indicate preblend. Update relevant paths to use this flag.
Fixes: 39923050615c ("drm/amd/display: Clear DPP 3DLUT Cap")
Reviewed-by: Dillon Varone <[email protected]>
Signed-off-by: Alvin Lee <[email protected]>
Signed-off-by: Ivan Lipski <[email protected]>
Tested-by: Dan Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit 9e5d4a5e27c6dc4e1b4fc9d654d13de12b8ce156)
Cc: [email protected]
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On clients that utilize AMD_PRIVATE_COLOR properties for HDR support,
brightness sliders can include a hardware controlled portion and a
gamma-based portion. This is the case on the Steam Deck OLED when using
gamescope with Steam as a client.
When a user sets a brightness level while HDR is active, the gamma-based
portion and/or hardware portion are adjusted to achieve the desired
brightness. However, when a modeset takes place while the gamma-based
portion is in-use, restoring the hardware brightness level overrides the
user's overall brightness level and results in a mismatch between what
the slider reports and the display's current brightness.
To avoid overriding gamma-based brightness, only restore HW backlight
level after boot or resume. This ensures that the backlight level is
set correctly after the DC layer resets it while avoiding interference
with subsequent modesets.
Fixes: 7875afafba84 ("drm/amd/display: Fix brightness level not retained over reboot")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4551
Signed-off-by: Matthew Schwartz <[email protected]>
Reviewed-by: Mario Limonciello <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit a490c8d77d500b5981e739be3d59c60cfe382536)
Cc: [email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from Bluetooth, IPsec and CAN.
No known regressions at this point.
Current release - regressions:
- xfrm: xfrm_alloc_spi shouldn't use 0 as SPI
Previous releases - regressions:
- xfrm: fix offloading of cross-family tunnels
- bluetooth: fix several races leading to UaFs
- dsa: lantiq_gswip: fix FDB entries creation for the CPU port
- eth:
- tun: update napi->skb after XDP process
- mlx: fix UAF in flow counter release
Previous releases - always broken:
- core: forbid FDB status change while nexthop is in a group
- smc: fix warning in smc_rx_splice() when calling get_page()
- can: provide missing ndo_change_mtu(), to prevent buffer overflow.
- eth:
- i40e: fix VF config validation
- broadcom: fix support for PTP_EXTTS_REQUEST2 ioctl"
* tag 'net-6.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port
net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup()
libie: fix string names for AQ error codes
net/mlx5e: Fix missing FEC RS stats for RS_544_514_INTERLEAVED_QUAD
net/mlx5: HWS, ignore flow level for multi-dest table
net/mlx5: fs, fix UAF in flow counter release
selftests: fib_nexthops: Add test cases for FDB status change
selftests: fib_nexthops: Fix creation of non-FDB nexthops
nexthop: Forbid FDB status change while nexthop is in a group
net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS
bnxt_en: correct offset handling for IPv6 destination address
ptp: document behavior of PTP_STRICT_FLAGS
broadcom: fix support for PTP_EXTTS_REQUEST2 ioctl
broadcom: fix support for PTP_PEROUT_DUTY_CYCLE
Bluetooth: MGMT: Fix possible UAFs
Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync
Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue
Bluetooth: hci_sync: Fix hci_resume_advertising_sync
Bluetooth: Fix build after header cleanup
...
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This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node"
and then dereferences it on the next line. Two lines later, we take
a mutex so I don't think this is an RCU safe region. Re-order it to do
the dereferences before queuing up the free.
Fixes: 68fbff68dbea ("octeontx2-pf: Add police action for TC flower")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Vadim Fedorenko <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>
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Vladimir Oltean says:
====================
lantiq_gswip fixes
This is a small set of fixes which I believe should be backported for
the lantiq_gswip driver. Daniel Golle asked me to submit them here:
https://lore.kernel.org/netdev/[email protected]/
As mentioned there, a merge conflict with net-next is expected, due to
the movement of the driver to the 'drivers/net/dsa/lantiq' folder there.
Good luck :-/
Patch 2/2 fixes an old regression and is the minimal fix for that, as
discussed here:
https://lore.kernel.org/netdev/[email protected]/
Patch 1/2 was identified by me through static analysis, and I consider
it to be a serious deficiency. It needs a test tag.
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>
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to the CPU port
The blamed commit and others in that patch set started the trend
of reusing existing DSA driver API for a new purpose: calling
ds->ops->port_fdb_add() on the CPU port.
The lantiq_gswip driver was not prepared to handle that, as can be seen
from the many errors that Daniel presents in the logs:
[ 174.050000] gswip 1e108000.switch: port 2 failed to add fa:aa:72:f4:8b:1e vid 1 to fdb: -22
[ 174.060000] gswip 1e108000.switch lan2: entered promiscuous mode
[ 174.070000] gswip 1e108000.switch: port 2 failed to add 00:01:02:03:04:02 vid 0 to fdb: -22
[ 174.090000] gswip 1e108000.switch: port 2 failed to add 00:01:02:03:04:02 vid 1 to fdb: -22
[ 174.090000] gswip 1e108000.switch: port 2 failed to delete fa:aa:72:f4:8b:1e vid 1 from fdb: -2
The errors are because gswip_port_fdb() wants to get a handle to the
bridge that originated these FDB events, to associate it with a FID.
Absolutely honourable purpose, however this only works for user ports.
To get the bridge that generated an FDB entry for the CPU port, one
would need to look at the db.bridge.dev argument. But this was
introduced in commit c26933639b54 ("net: dsa: request drivers to perform
FDB isolation"), first appeared in v5.18, and when the blamed commit was
introduced in v5.14, no such API existed.
So the core DSA feature was introduced way too soon for lantiq_gswip.
Not acting on these host FDB entries and suppressing any errors has no
other negative effect, and practically returns us to not supporting the
host filtering feature at all - peacefully, this time.
Fixes: 10fae4ac89ce ("net: dsa: include bridge addresses which are local in the host fdb list")
Reported-by: Daniel Golle <[email protected]>
Closes: https://lore.kernel.org/netdev/[email protected]/
Signed-off-by: Vladimir Oltean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Tested-by: Daniel Golle <[email protected]>
Reviewed-by: Daniel Golle <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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A port added to a "single port bridge" operates as standalone, and this
is mutually exclusive to being part of a Linux bridge. In fact,
gswip_port_bridge_join() calls gswip_add_single_port_br() with
add=false, i.e. removes the port from the "single port bridge" to enable
autonomous forwarding.
The blamed commit seems to have incorrectly thought that ds->ops->port_enable()
is called one time per port, during the setup phase of the switch.
However, it is actually called during the ndo_open() implementation of
DSA user ports, which is to say that this sequence of events:
1. ip link set swp0 down
2. ip link add br0 type bridge
3. ip link set swp0 master br0
4. ip link set swp0 up
would cause swp0 to join back the "single port bridge" which step 3 had
just removed it from.
The correct DSA hook for one-time actions per port at switch init time
is ds->ops->port_setup(). This is what seems to match the coder's
intention; also see the comment at the beginning of the file:
* At the initialization the driver allocates one bridge table entry for
~~~~~~~~~~~~~~~~~~~~~
* each switch port which is used when the port is used without an
* explicit bridge.
Fixes: 8206e0ce96b3 ("net: dsa: lantiq: Add VLAN unaware bridge offloading")
Signed-off-by: Vladimir Oltean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Tested-by: Daniel Golle <[email protected]>
Reviewed-by: Daniel Golle <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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The LIBIE_AQ_STR macro() introduced by commit 5feaa7a07b85 ("libie: add
adminq helper for converting err to str") is used in order to generate
strings for printing human readable error codes. Its definition is missing
the separating underscore ('_') character which makes the resulting strings
difficult to read. Additionally, the string won't match the source code,
preventing search tools from working properly.
Add the missing underscore character, fixing the error string names.
Signed-off-by: Jacob Keller <[email protected]>
Fixes: 5feaa7a07b85 ("libie: add adminq helper for converting err to str")
Reviewed-by: Paul Menzel <[email protected]>
Reviewed-by: Aleksandr Loktionov <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Tariq Toukan says:
====================
mlx5 misc fixes 2025-09-22
This patchset provides misc bug fixes from the team to the mlx5 Eth
and core drivers.
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Include MLX5E_FEC_RS_544_514_INTERLEAVED_QUAD in the FEC RS stats
handling. This addresses a gap introduced when adding support for
200G/lane link modes.
Fixes: 4e343c11efbb ("net/mlx5e: Support FEC settings for 200G per lane link modes")
Signed-off-by: Carolina Jubran <[email protected]>
Reviewed-by: Dragos Tatulea <[email protected]>
Reviewed-by: Yael Chemla <[email protected]>
Signed-off-by: Tariq Toukan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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When HWS creates multi-dest FW table and adds rules to
forward to other tables, ignore the flow level enforcement
in FW, because HWS is responsible for table levels.
This fixes the following error:
mlx5_core 0000:08:00.0: mlx5_cmd_out_err:818:(pid 192306):
SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed,
status bad parameter(0x3), syndrome (0x6ae84c), err(-22)
Fixes: 504e536d9010 ("net/mlx5: HWS, added actions handling")
Signed-off-by: Yevgeny Kliteynik <[email protected]>
Reviewed-by: Moshe Shemesh <[email protected]>
Reviewed-by: Mark Bloch <[email protected]>
Signed-off-by: Tariq Toukan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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