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903,243 commits

Author SHA1 Message Date
Seyediman Seyedarab
ac7d620cad kbuild: fix argument parsing in scripts/config
[ Upstream commit f757f6011c92b5a01db742c39149bed9e526478f ]

The script previously assumed --file was always the first argument,
which caused issues when it appeared later. This patch updates the
parsing logic to scan all arguments to find --file, sets the config
file correctly, and resets the argument list with the remaining
commands.

It also fixes --refresh to respect --file by passing KCONFIG_CONFIG=$FN
to make oldconfig.

Signed-off-by: Seyediman Seyedarab <imandevel@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:31 +02:00
Kai Mäkisara
47d75cd6b3 scsi: st: ERASE does not change tape location
[ Upstream commit ad77cebf97bd42c93ab4e3bffd09f2b905c1959a ]

The SCSI ERASE command erases from the current position onwards.  Don't
clear the position variables.

Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250311112516.5548-3-Kai.Makisara@kolumbus.fi
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:31 +02:00
Kai Mäkisara
d885df76e7 scsi: st: Tighten the page format heuristics with MODE SELECT
[ Upstream commit 8db816c6f176321e42254badd5c1a8df8bfcfdb4 ]

In the days when SCSI-2 was emerging, some drives did claim SCSI-2 but did
not correctly implement it. The st driver first tries MODE SELECT with the
page format bit set to set the block descriptor.  If not successful, the
non-page format is tried.

The test only tests the sense code and this triggers also from illegal
parameter in the parameter list. The test is limited to "old" devices and
made more strict to remove false alarms.

Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250311112516.5548-4-Kai.Makisara@kolumbus.fi
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:31 +02:00
Christian Göttsche
3fc269dcc0 ext4: reorder capability check last
[ Upstream commit 1b419c889c0767a5b66d0a6c566cae491f1cb0f7 ]

capable() calls refer to enabled LSMs whether to permit or deny the
request.  This is relevant in connection with SELinux, where a
capability check results in a policy decision and by default a denial
message on insufficient permission is issued.
It can lead to three undesired cases:
  1. A denial message is generated, even in case the operation was an
     unprivileged one and thus the syscall succeeded, creating noise.
  2. To avoid the noise from 1. the policy writer adds a rule to ignore
     those denial messages, hiding future syscalls, where the task
     performs an actual privileged operation, leading to hidden limited
     functionality of that task.
  3. To avoid the noise from 1. the policy writer adds a rule to permit
     the task the requested capability, while it does not need it,
     violating the principle of least privilege.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20250302160657.127253-2-cgoettsche@seltendoof.de
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:31 +02:00
Tiwei Bie
874553032a um: Update min_low_pfn to match changes in uml_reserved
[ Upstream commit e82cf3051e6193f61e03898f8dba035199064d36 ]

When uml_reserved is updated, min_low_pfn must also be updated
accordingly. Otherwise, min_low_pfn will not accurately reflect
the lowest available PFN.

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20250221041855.1156109-1-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Benjamin Berg
ba38e64634 um: Store full CSGSFS and SS register from mcontext
[ Upstream commit cef721e0d53d2b64f2ba177c63a0dfdd7c0daf17 ]

Doing this allows using registers as retrieved from an mcontext to be
pushed to a process using PTRACE_SETREGS.

It is not entirely clear to me why CSGSFS was masked. Doing so creates
issues when using the mcontext as process state in seccomp and simply
copying the register appears to work perfectly fine for ptrace.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Link: https://patch.msgid.link/20250224181827.647129-2-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Filipe Manana
b8f420a5b1 btrfs: send: return -ENAMETOOLONG when attempting a path that is too long
[ Upstream commit a77749b3e21813566cea050bbb3414ae74562eba ]

When attempting to build a too long path we are currently returning
-ENOMEM, which is very odd and misleading. So update fs_path_ensure_buf()
to return -ENAMETOOLONG instead. Also, while at it, move the WARN_ON()
into the if statement's expression, as it makes it clear what is being
tested and also has the effect of adding 'unlikely' to the statement,
which allows the compiler to generate better code as this condition is
never expected to happen.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Mark Harmstone
9afb72df66 btrfs: avoid linker error in btrfs_find_create_tree_block()
[ Upstream commit 7ef3cbf17d2734ca66c4ed8573be45f4e461e7ee ]

The inline function btrfs_is_testing() is hardcoded to return 0 if
CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set. Currently we're relying on
the compiler optimizing out the call to alloc_test_extent_buffer() in
btrfs_find_create_tree_block(), as it's not been defined (it's behind an
 #ifdef).

Add a stub version of alloc_test_extent_buffer() to avoid linker errors
on non-standard optimization levels. This problem was seen on GCC 14
with -O0 and is helps to see symbols that would be otherwise optimized
out.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Mark Harmstone <maharmstone@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Vitalii Mordan
1fb065f237 i2c: pxa: fix call balance of i2c->clk handling routines
[ Upstream commit be7113d2e2a6f20cbee99c98d261a1fd6fd7b549 ]

If the clock i2c->clk was not enabled in i2c_pxa_probe(), it should not be
disabled in any path.

Found by Linux Verification Center (linuxtesting.org) with Klever.

Signed-off-by: Vitalii Mordan <mordan@ispras.ru>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250212172803.1422136-1-mordan@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Erick Shepherd
65845b2f1d mmc: host: Wait for Vdd to settle on card power off
[ Upstream commit 31e75ed964582257f59156ce6a42860e1ae4cc39 ]

The SD spec version 6.0 section 6.4.1.5 requires that Vdd must be
lowered to less than 0.5V for a minimum of 1 ms when powering off a
card. Increase wait to 15 ms so that voltage has time to drain down
to 0.5V and cards can power off correctly. Issues with voltage drain
time were only observed on Apollo Lake and Bay Trail host controllers
so this fix is limited to those devices.

Signed-off-by: Erick Shepherd <erick.shepherd@ni.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20250314195021.1588090-1-erick.shepherd@ni.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Robert Richter
2bd4a938d2 libnvdimm/labels: Fix divide error in nd_label_data_init()
[ Upstream commit ef1d3455bbc1922f94a91ed58d3d7db440652959 ]

If a faulty CXL memory device returns a broken zero LSA size in its
memory device information (Identify Memory Device (Opcode 4000h), CXL
spec. 3.1, 8.2.9.9.1.1), a divide error occurs in the libnvdimm
driver:

 Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI
 RIP: 0010:nd_label_data_init+0x10e/0x800 [libnvdimm]

Code and flow:

1) CXL Command 4000h returns LSA size = 0
2) config_size is assigned to zero LSA size (CXL pmem driver):

drivers/cxl/pmem.c:             .config_size = mds->lsa_size,

3) max_xfer is set to zero (nvdimm driver):

drivers/nvdimm/label.c: max_xfer = min_t(size_t, ndd->nsarea.max_xfer, config_size);

4) A subsequent DIV_ROUND_UP() causes a division by zero:

drivers/nvdimm/label.c: /* Make our initial read size a multiple of max_xfer size */
drivers/nvdimm/label.c: read_size = min(DIV_ROUND_UP(read_size, max_xfer) * max_xfer,
drivers/nvdimm/label.c-                 config_size);

Fix this by checking the config size parameter by extending an
existing check.

Signed-off-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20250320112223.608320-1-rrichter@amd.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Trond Myklebust
995c72683c pNFS/flexfiles: Report ENETDOWN as a connection error
[ Upstream commit aa42add73ce9b9e3714723d385c254b75814e335 ]

If the client should see an ENETDOWN when trying to connect to the data
server, it might still be able to talk to the metadata server through
another NIC. If so, report the error.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Tested-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Ian Rogers
cf7c3d7e87 tools/build: Don't pass test log files to linker
[ Upstream commit 935e7cb5bb80106ff4f2fe39640f430134ef8cd8 ]

Separate test log files from object files. Depend on test log output
but don't pass to the linker.

Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250311213628.569562-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Jing Su
fa1cd3213e dql: Fix dql->limit value when reset.
[ Upstream commit 3a17f23f7c36bac3a3584aaf97d3e3e0b2790396 ]

Executing dql_reset after setting a non-zero value for limit_min can
lead to an unreasonable situation where dql->limit is less than
dql->limit_min.

For instance, after setting
/sys/class/net/eth*/queues/tx-0/byte_queue_limits/limit_min,
an ifconfig down/up operation might cause the ethernet driver to call
netdev_tx_reset_queue, which in turn invokes dql_reset.

In this case, dql->limit is reset to 0 while dql->limit_min remains
non-zero value, which is unexpected. The limit should always be
greater than or equal to limit_min.

Signed-off-by: Jing Su <jingsusu@didiglobal.com>
Link: https://patch.msgid.link/Z9qHD1s/NEuQBdgH@pilot-ThinkCentre-M930t-N000
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Trond Myklebust
0f0fdd5a75 SUNRPC: rpc_clnt_set_transport() must not change the autobind setting
[ Upstream commit bf9be373b830a3e48117da5d89bb6145a575f880 ]

The autobind setting was supposed to be determined in rpc_create(),
since commit c2866763b4 ("SUNRPC: use sockaddr + size when creating
remote transport endpoints").

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Trond Myklebust
c30bc4d291 NFSv4: Treat ENETUNREACH errors as fatal for state recovery
[ Upstream commit 0af5fb5ed3d2fd9e110c6112271f022b744a849a ]

If a containerised process is killed and causes an ENETUNREACH or
ENETDOWN error to be propagated to the state manager, then mark the
nfs_client as being dead so that we don't loop in functions that are
expecting recovery to succeed.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Zsolt Kajtar
b940374cf8 fbdev: core: tileblit: Implement missing margin clearing for tileblit
[ Upstream commit 76d3ca89981354e1f85a3e0ad9ac4217d351cc72 ]

I was wondering why there's garbage at the bottom of the screen when
tile blitting is used with an odd mode like 1080, 600 or 200. Sure there's
only space for half a tile but the same area is clean when the buffer
is bitmap.

Then later I found that it's supposed to be cleaned but that's not
implemented. So I took what's in bitblit and adapted it for tileblit.

This implementation was tested for both the horizontal and vertical case,
and now does the same as what's done for bitmap buffers.

If anyone is interested to reproduce the problem then I could bet that'd
be on a S3 or Ark. Just set up a mode with an odd line count and make
sure that the virtual size covers the complete tile at the bottom. E.g.
for 600 lines that's 608 virtual lines for a 16 tall tile. Then the
bottom area should be cleaned.

For the right side it's more difficult as there the drivers won't let an
odd size happen, unless the code is modified. But once it reports back a
few pixel columns short then fbcon won't use the last column. With the
patch that column is now clean.

Btw. the virtual size should be rounded up by the driver for both axes
(not only the horizontal) so that it's dividable by the tile size.
That's a driver bug but correcting it is not in scope for this patch.

Implement missing margin clearing for tileblit

Signed-off-by: Zsolt Kajtar <soci@c64.rulez.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Shixiong Ou
e9eb6288a4 fbdev: fsl-diu-fb: add missing device_remove_file()
[ Upstream commit 86d16cd12efa547ed43d16ba7a782c1251c80ea8 ]

Call device_remove_file() when driver remove.

Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Tudor Ambarus
f60ba8bd27 mailbox: use error ret code of of_parse_phandle_with_args()
[ Upstream commit 24fdd5074b205cfb0ef4cd0751a2d03031455929 ]

In case of error, of_parse_phandle_with_args() returns -EINVAL when the
passed index is negative, or -ENOENT when the index is for an empty
phandle. The mailbox core overwrote the error return code with a less
precise -ENODEV. Use the error returned code from
of_parse_phandle_with_args().

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
Daniel Gomez
94a78c618e kconfig: merge_config: use an empty file as initfile
[ Upstream commit a26fe287eed112b4e21e854f173c8918a6a8596d ]

The scripts/kconfig/merge_config.sh script requires an existing
$INITFILE (or the $1 argument) as a base file for merging Kconfig
fragments. However, an empty $INITFILE can serve as an initial starting
point, later referenced by the KCONFIG_ALLCONFIG Makefile variable
if -m is not used. This variable can point to any configuration file
containing preset config symbols (the merged output) as stated in
Documentation/kbuild/kconfig.rst. When -m is used $INITFILE will
contain just the merge output requiring the user to run make (i.e.
KCONFIG_ALLCONFIG=<$INITFILE> make <allnoconfig/alldefconfig> or make
olddefconfig).

Instead of failing when `$INITFILE` is missing, create an empty file and
use it as the starting point for merges.

Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:30 +02:00
gaoxu
973841022d cgroup: Fix compilation issue due to cgroup_mutex not being exported
[ Upstream commit 87c259a7a359e73e6c52c68fcbec79988999b4e6 ]

When adding folio_memcg function call in the zram module for
Android16-6.12, the following error occurs during compilation:
ERROR: modpost: "cgroup_mutex" [../soc-repo/zram.ko] undefined!

This error is caused by the indirect call to lockdep_is_held(&cgroup_mutex)
within folio_memcg. The export setting for cgroup_mutex is controlled by
the CONFIG_PROVE_RCU macro. If CONFIG_LOCKDEP is enabled while
CONFIG_PROVE_RCU is not, this compilation error will occur.

To resolve this issue, add a parallel macro CONFIG_LOCKDEP control to
ensure cgroup_mutex is properly exported when needed.

Signed-off-by: gao xu <gaoxu2@honor.com>
Acked-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:29 +02:00
Marek Szyprowski
c668e30528 dma-mapping: avoid potential unused data compilation warning
[ Upstream commit c9b19ea63036fc537a69265acea1b18dabd1cbd3 ]

When CONFIG_NEED_DMA_MAP_STATE is not defined, dma-mapping clients might
report unused data compilation warnings for dma_unmap_*() calls
arguments. Redefine macros for those calls to let compiler to notice that
it is okay when the provided arguments are not used.

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250415075659.428549-1-m.szyprowski@samsung.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:29 +02:00
Dmitry Bogdanov
571ce6b6f5 scsi: target: iscsi: Fix timeout on deleted connection
[ Upstream commit 7f533cc5ee4c4436cee51dc58e81dfd9c3384418 ]

NOPIN response timer may expire on a deleted connection and crash with
such logs:

Did not receive response to NOPIN on CID: 0, failing connection for I_T Nexus (null),i,0x00023d000125,iqn.2017-01.com.iscsi.target,t,0x3d

BUG: Kernel NULL pointer dereference on read at 0x00000000
NIP  strlcpy+0x8/0xb0
LR iscsit_fill_cxn_timeout_err_stats+0x5c/0xc0 [iscsi_target_mod]
Call Trace:
 iscsit_handle_nopin_response_timeout+0xfc/0x120 [iscsi_target_mod]
 call_timer_fn+0x58/0x1f0
 run_timer_softirq+0x740/0x860
 __do_softirq+0x16c/0x420
 irq_exit+0x188/0x1c0
 timer_interrupt+0x184/0x410

That is because nopin response timer may be re-started on nopin timer
expiration.

Stop nopin timer before stopping the nopin response timer to be sure
that no one of them will be re-started.

Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Link: https://lore.kernel.org/r/20241224101757.32300-1-d.bogdanov@yadro.com
Reviewed-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:29 +02:00
Eelco Chaudron
6712dc2150 openvswitch: Fix unsafe attribute parsing in output_userspace()
commit 6beb6835c1fbb3f676aebb51a5fee6b77fed9308 upstream.

This patch replaces the manual Netlink attribute iteration in
output_userspace() with nla_for_each_nested(), which ensures that only
well-formed attributes are processed.

Fixes: ccb1352e76 ("net: Add Open vSwitch kernel components.")
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Acked-by: Ilya Maximets <i.maximets@ovn.org>
Acked-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/0bd65949df61591d9171c0dc13e42cea8941da10.1746541734.git.echaudro@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Aditya Garg
2e765124c2 Input: synaptics - enable InterTouch on TUXEDO InfinityBook Pro 14 v5
commit 2abc698ac77314e0de5b33a6d96a39c5159d88e4 upstream.

Enable InterTouch mode on TUXEDO InfinityBook Pro 14 v5 by adding
"SYN1221" to the list of SMBus-enabled variants.

Add support for InterTouch on SYN1221 by adding it to the list of
SMBus-enabled variants.

Reported-by: Matthias Eilert <kernel.hias@eilert.tech>
Tested-by: Matthias Eilert <kernel.hias@eilert.tech>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Link: https://lore.kernel.org/r/PN3PR01MB9597C033C4BC20EE2A0C4543B888A@PN3PR01MB9597.INDPRD01.PROD.OUTLOOK.COM
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Dmitry Torokhov
2e45aaa4aa Input: synaptics - enable SMBus for HP Elitebook 850 G1
commit f04f03d3e99bc8f89b6af5debf07ff67d961bc23 upstream.

The kernel reports that the touchpad for this device can support
SMBus mode.

Reported-by: jt <enopatch@gmail.com>
Link: https://lore.kernel.org/r/iys5dbv3ldddsgobfkxldazxyp54kay4bozzmagga6emy45jop@2ebvuxgaui4u
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Sebastian Andrzej Siewior
0ebb19c657 clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable()
commit 94cff94634e506a4a44684bee1875d2dbf782722 upstream.

On x86 during boot, clockevent_i8253_disable() can be invoked via
x86_late_time_init -> hpet_time_init() -> pit_timer_init() which happens
with enabled interrupts.

If some of the old i8253 hardware is actually used then lockdep will notice
that i8253_lock is used in hard interrupt context. This causes lockdep to
complain because it observed the lock being acquired with interrupts
enabled and in hard interrupt context.

Make clockevent_i8253_disable() acquire the lock with
raw_spinlock_irqsave() to cure this.

[ tglx: Massage change log and use guard() ]

Fixes: c8c4076723 ("x86/timer: Skip PIT initialization on modern chipsets")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250404133116.p-XRWJXf@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Claudiu Beznea
2007f9dc73 phy: renesas: rcar-gen3-usb2: Set timing registers only once
commit 86e70849f4b2b4597ac9f7c7931f2a363774be25 upstream.

phy-rcar-gen3-usb2 driver exports 4 PHYs. The timing registers are common
to all PHYs. There is no need to set them every time a PHY is initialized.
Set timing register only when the 1st PHY is initialized.

Fixes: f3b5a8d9b5 ("phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver")
Cc: stable@vger.kernel.org
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/r/20250507125032.565017-6-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Ma Ke
01bd47af24 phy: Fix error handling in tegra_xusb_port_init
commit b2ea5f49580c0762d17d80d8083cb89bc3acf74f upstream.

If device_add() fails, do not use device_unregister() for error
handling. device_unregister() consists two functions: device_del() and
put_device(). device_unregister() should only be called after
device_add() succeeded because device_del() undoes what device_add()
does if successful. Change device_unregister() to put_device() call
before returning from the function.

As comment of device_add() says, 'if device_add() succeeds, you should
call device_del() when you want to get rid of it. If device_add() has
not succeeded, use only put_device() to drop the reference count'.

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 53d2a715c2 ("phy: Add Tegra XUSB pad controller support")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250303072739.3874987-1-make24@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Wentao Liang
1f73ccc674 ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2()
commit 9e000f1b7f31684cc5927e034360b87ac7919593 upstream.

The function snd_es1968_capture_open() calls the function
snd_pcm_hw_constraint_pow2(), but does not check its return
value. A proper implementation can be found in snd_cx25821_pcm_open().

Add error handling for snd_pcm_hw_constraint_pow2() and propagate its
error code.

Fixes: b942cf815b ("[ALSA] es1968 - Fix stuttering capture")
Cc: stable@vger.kernel.org # v2.6.22
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20250514092444.331-1-vulab@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Jeremy Linton
b8ee9fe570 ACPI: PPTT: Fix processor subtable walk
commit adfab6b39202481bb43286fff94def4953793fdb upstream.

The original PPTT code had a bug where the processor subtable length
was not correctly validated when encountering a truncated
acpi_pptt_processor node.

Commit 7ab4f0e37a0f4 ("ACPI PPTT: Fix coding mistakes in a couple of
sizeof() calls") attempted to fix this by validating the size is as
large as the acpi_pptt_processor node structure. This introduced a
regression where the last processor node in the PPTT table is ignored
if it doesn't contain any private resources. That results errors like:

  ACPI PPTT: PPTT table found, but unable to locate core XX (XX)
  ACPI: SPE must be homogeneous

Furthermore, it fails in a common case where the node length isn't
equal to the acpi_pptt_processor structure size, leaving the original
bug in a modified form.

Correct the regression by adjusting the loop termination conditions as
suggested by the bug reporters. An additional check performed after
the subtable node type is detected, validates the acpi_pptt_processor
node is fully contained in the PPTT table. Repeating the check in
acpi_pptt_leaf_node() is largely redundant as the node is already
known to be fully contained in the table.

The case where a final truncated node's parent property is accepted,
but the node itself is rejected should not be considered a bug.

Fixes: 7ab4f0e37a0f4 ("ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls")
Reported-by: Maximilian Heyne <mheyne@amazon.de>
Closes: https://lore.kernel.org/linux-acpi/20250506-draco-taped-15f475cd@mheyne-amazon/
Reported-by: Yicong Yang <yangyicong@hisilicon.com>
Closes: https://lore.kernel.org/linux-acpi/20250507035124.28071-1-yangyicong@huawei.com/
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Maximilian Heyne <mheyne@amazon.de>
Cc: All applicable <stable@vger.kernel.org> # 7ab4f0e37a0f4: ACPI PPTT: Fix coding mistakes ...
Link: https://patch.msgid.link/20250508023025.1301030-1-jeremy.linton@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Nathan Lynch
aeed6418c4 dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted"
commit df180e65305f8c1e020d54bfc2132349fd693de1 upstream.

Several issues with this change:

* The analysis is flawed and it's unclear what problem is being
  fixed. There is no difference between wait_event_freezable_timeout()
  and wait_event_timeout() with respect to device interrupts. And of
  course "the interrupt notifying the finish of an operation happens
  during wait_event_freezable_timeout()" -- that's how it's supposed
  to work.

* The link at the "Closes:" tag appears to be an unrelated
  use-after-free in idxd.

* It introduces a regression: dmatest threads are meant to be
  freezable and this change breaks that.

See discussion here:
https://lore.kernel.org/dmaengine/878qpa13fe.fsf@AUSNATLYNCH.amd.com/

Fixes: e87ca16e9911 ("dmaengine: dmatest: Fix dmatest waiting less when interrupted")
Signed-off-by: Nathan Lynch <nathan.lynch@amd.com>
Link: https://lore.kernel.org/r/20250403-dmaengine-dmatest-revert-waiting-less-v1-1-8227c5a3d7c8@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
Trond Myklebust
eb04621218 NFSv4/pnfs: Reset the layout state after a layoutreturn
[ Upstream commit 6d6d7f91cc8c111d40416ac9240a3bb9396c5235 ]

If there are still layout segments in the layout plh_return_lsegs list
after a layout return, we should be resetting the state to ensure they
eventually get returned as well.

Fixes: 68f744797e ("pNFS: Do not free layout segments that are marked for return")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:29 +02:00
Trond Myklebust
1057c7ae8b NFSv4/pnfs: pnfs_set_layout_stateid() should update the layout cred
[ Upstream commit 59b5639490f51aa604d18064dcf0c2d72eb1decf ]

If the cred assigned to the layout that we're updating differs from
the one used to retrieve the new layout segment, then we need to
update the layout plh_lc_cred field.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Stable-dep-of: 6d6d7f91cc8c ("NFSv4/pnfs: Reset the layout state after a layoutreturn")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:29 +02:00
Abdun Nihaal
7f42126b61 qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd()
[ Upstream commit 9d8a99c5a7c7f4f7eca2c168a4ec254409670035 ]

In one of the error paths in qlcnic_sriov_channel_cfg_cmd(), the memory
allocated in qlcnic_sriov_alloc_bc_mbx_args() for mailbox arguments is
not freed. Fix that by jumping to the error path that frees them, by
calling qlcnic_free_mbx_args(). This was found using static analysis.

Fixes: f197a7aa62 ("qlcnic: VF-PF communication channel implementation")
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250512044829.36400-1-abdun.nihaal@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:29 +02:00
Geert Uytterhoeven
8887470ae1 ALSA: sh: SND_AICA should depend on SH_DMA_API
[ Upstream commit 66e48ef6ef506c89ec1b3851c6f9f5f80b5835ff ]

If CONFIG_SH_DMA_API=n:

    WARNING: unmet direct dependencies detected for G2_DMA
      Depends on [n]: SH_DREAMCAST [=y] && SH_DMA_API [=n]
      Selected by [y]:
      - SND_AICA [=y] && SOUND [=y] && SND [=y] && SND_SUPERH [=y] && SH_DREAMCAST [=y]

SND_AICA selects G2_DMA.  As the latter depends on SH_DMA_API, the
former should depend on SH_DMA_API, too.

Fixes: f477a538c14d07f8 ("sh: dma: fix kconfig dependency for G2_DMA")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505131320.PzgTtl9H-lkp@intel.com/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/b90625f8a9078d0d304bafe862cbe3a3fab40082.1747121335.git.geert+renesas@glider.be
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Vladimir Oltean
7d2bbcf834 net: dsa: sja1105: discard incoming frames in BR_STATE_LISTENING
[ Upstream commit 498625a8ab2c8e1c9ab5105744310e8d6952cc01 ]

It has been reported that when under a bridge with stp_state=1, the logs
get spammed with this message:

[  251.734607] fsl_dpaa2_eth dpni.5 eth0: Couldn't decode source port

Further debugging shows the following info associated with packets:
source_port=-1, switch_id=-1, vid=-1, vbid=1

In other words, they are data plane packets which are supposed to be
decoded by dsa_tag_8021q_find_port_by_vbid(), but the latter (correctly)
refuses to do so, because no switch port is currently in
BR_STATE_LEARNING or BR_STATE_FORWARDING - so the packet is effectively
unexpected.

The error goes away after the port progresses to BR_STATE_LEARNING in 15
seconds (the default forward_time of the bridge), because then,
dsa_tag_8021q_find_port_by_vbid() can correctly associate the data plane
packets with a plausible bridge port in a plausible STP state.

Re-reading IEEE 802.1D-1990, I see the following:

"4.4.2 Learning: (...) The Forwarding Process shall discard received
frames."

IEEE 802.1D-2004 further clarifies:

"DISABLED, BLOCKING, LISTENING, and BROKEN all correspond to the
DISCARDING port state. While those dot1dStpPortStates serve to
distinguish reasons for discarding frames, the operation of the
Forwarding and Learning processes is the same for all of them. (...)
LISTENING represents a port that the spanning tree algorithm has
selected to be part of the active topology (computing a Root Port or
Designated Port role) but is temporarily discarding frames to guard
against loops or incorrect learning."

Well, this is not what the driver does - instead it sets
mac[port].ingress = true.

To get rid of the log spam, prevent unexpected data plane packets to
be received by software by discarding them on ingress in the LISTENING
state.

In terms of blame attribution: the prints only date back to commit
d7f9787a763f ("net: dsa: tag_8021q: add support for imprecise RX based
on the VBID"). However, the settings would permit a LISTENING port to
forward to a FORWARDING port, and the standard suggests that's not OK.

Fixes: 640f763f98 ("net: dsa: sja1105: Add support for Spanning Tree Protocol")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250509113816.2221992-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Geert Uytterhoeven
b383443f20 spi: loopback-test: Do not split 1024-byte hexdumps
[ Upstream commit a73fa3690a1f3014d6677e368dce4e70767a6ba2 ]

spi_test_print_hex_dump() prints buffers holding less than 1024 bytes in
full.  Larger buffers are truncated: only the first 512 and the last 512
bytes are printed, separated by a truncation message.  The latter is
confusing in case the buffer holds exactly 1024 bytes, as all data is
printed anyway.

Fix this by printing buffers holding up to and including 1024 bytes in
full.

Fixes: 84e0c4e5e2 ("spi: add loopback test driver to allow for spi_master regression tests")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/37ee1bc90c6554c9347040adabf04188c8f704aa.1746184171.git.geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Li Lingfeng
db6f5ee1fc nfs: handle failure of nfs_get_lock_context in unlock path
[ Upstream commit c457dc1ec770a22636b473ce5d35614adfe97636 ]

When memory is insufficient, the allocation of nfs_lock_context in
nfs_get_lock_context() fails and returns -ENOMEM. If we mistakenly treat
an nfs4_unlockdata structure (whose l_ctx member has been set to -ENOMEM)
as valid and proceed to execute rpc_run_task(), this will trigger a NULL
pointer dereference in nfs4_locku_prepare. For example:

BUG: kernel NULL pointer dereference, address: 000000000000000c
PGD 0 P4D 0
Oops: Oops: 0000 [#1] SMP PTI
CPU: 15 UID: 0 PID: 12 Comm: kworker/u64:0 Not tainted 6.15.0-rc2-dirty #60
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40
Workqueue: rpciod rpc_async_schedule
RIP: 0010:nfs4_locku_prepare+0x35/0xc2
Code: 89 f2 48 89 fd 48 c7 c7 68 69 ef b5 53 48 8b 8e 90 00 00 00 48 89 f3
RSP: 0018:ffffbbafc006bdb8 EFLAGS: 00010246
RAX: 000000000000004b RBX: ffff9b964fc1fa00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: fffffffffffffff4 RDI: ffff9ba53fddbf40
RBP: ffff9ba539934000 R08: 0000000000000000 R09: ffffbbafc006bc38
R10: ffffffffb6b689c8 R11: 0000000000000003 R12: ffff9ba539934030
R13: 0000000000000001 R14: 0000000004248060 R15: ffffffffb56d1c30
FS: 0000000000000000(0000) GS:ffff9ba5881f0000(0000) knlGS:00000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000000c CR3: 000000093f244000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __rpc_execute+0xbc/0x480
 rpc_async_schedule+0x2f/0x40
 process_one_work+0x232/0x5d0
 worker_thread+0x1da/0x3d0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0x10d/0x240
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x34/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
CR2: 000000000000000c
---[ end trace 0000000000000000 ]---

Free the allocated nfs4_unlockdata when nfs_get_lock_context() fails and
return NULL to terminate subsequent rpc_run_task, preventing NULL pointer
dereference.

Fixes: f30cb757f6 ("NFS: Always wait for I/O completion before unlock")
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20250417072508.3850532-1-lilingfeng3@huawei.com
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Zhu Yanjun
7c7c80c32e RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug
[ Upstream commit f81b33582f9339d2dc17c69b92040d3650bb4bae ]

Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcf/0x610 mm/kasan/report.c:489
 kasan_report+0xb5/0xe0 mm/kasan/report.c:602
 rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195
 rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132
 __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232
 rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109
 create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052
 ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095
 ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679
 vfs_write fs/read_write.c:677 [inline]
 vfs_write+0x26a/0xcc0 fs/read_write.c:659
 ksys_write+0x1b8/0x200 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

In the function rxe_create_cq, when rxe_cq_from_init fails, the function
rxe_cleanup will be called to handle the allocated resources. In fact,
some memory resources have already been freed in the function
rxe_cq_from_init. Thus, this problem will occur.

The solution is to let rxe_cleanup do all the work.

Fixes: 8700e3e7c4 ("Soft RoCE driver")
Link: https://paste.ubuntu.com/p/tJgC42wDf6/
Tested-by: liuyi <liuy22@mails.tsinghua.edu.cn>
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://patch.msgid.link/20250412075714.3257358-1-yanjun.zhu@linux.dev
Reviewed-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
David Lechner
df6fbd8380 iio: chemical: sps30: use aligned_s64 for timestamp
[ Upstream commit bb49d940344bcb8e2b19e69d7ac86f567887ea9a ]

Follow the pattern of other drivers and use aligned_s64 for the
timestamp. This will ensure that the timestamp is correctly aligned on
all architectures.

Fixes: a5bf6fdd19c3 ("iio:chemical:sps30: Fix timestamp alignment")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250417-iio-more-timestamp-alignment-v1-5-eafac1e22318@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Jonathan Cameron
d04c98d2c8 iio: adc: ad7768-1: Fix insufficient alignment of timestamp.
[ Upstream commit ffbc26bc91c1f1eb3dcf5d8776e74cbae21ee13a ]

On architectures where an s64 is not 64-bit aligned, this may result
insufficient alignment of the timestamp and the structure being too small.
Use aligned_s64 to force the alignment.

Fixes: a1caeebab07e ("iio: adc: ad7768-1: Fix too small buffer passed to iio_push_to_buffers_with_timestamp()") # aligned_s64 newer
Reported-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250413103443.2420727-3-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Gabriel Shahrouzi
4ec0ce14c3 staging: axis-fifo: Correct handling of tx_fifo_depth for size validation
[ Upstream commit 2ca34b508774aaa590fc3698a54204706ecca4ba ]

Remove erroneous subtraction of 4 from the total FIFO depth read from
device tree. The stored depth is for checking against total capacity,
not initial vacancy. This prevented writes near the FIFO's full size.

The check performed just before data transfer, which uses live reads of
the TDFV register to determine current vacancy, correctly handles the
initial Depth - 4 hardware state and subsequent FIFO fullness.

Fixes: 4a965c5f89 ("staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core")
Cc: stable@vger.kernel.org
Signed-off-by: Gabriel Shahrouzi <gshahrouzi@gmail.com>
Link: https://lore.kernel.org/r/20250419012937.674924-1-gshahrouzi@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Quentin Deslandes
51d31e083a staging: axis-fifo: avoid parsing ignored device tree properties
[ Upstream commit ed6daf2b2832d9b07582a6ff884039afa9063206 ]

Some properties were parsed from the device tree and then ignored by the
driver. Some would return an error if absent from the device tree, then
return an error if they were found because they are unsupported by the
driver.

Avoid parsing unused properties and clearly explain in the documentation
the ignored / unsupported properties.

Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Link: https://lore.kernel.org/r/20191101214232.16960-2-quentin.deslandes@itdev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 2ca34b508774 ("staging: axis-fifo: Correct handling of tx_fifo_depth for size validation")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Gabriel Shahrouzi
5afeeda4f3 staging: axis-fifo: Remove hardware resets for user errors
[ Upstream commit c6e8d85fafa7193613db37da29c0e8d6e2515b13 ]

The axis-fifo driver performs a full hardware reset (via
reset_ip_core()) in several error paths within the read and write
functions. This reset flushes both TX and RX FIFOs and resets the
AXI-Stream links.

Allow the user to handle the error without causing hardware disruption
or data loss in other FIFO paths.

Fixes: 4a965c5f89 ("staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core")
Cc: stable@vger.kernel.org
Signed-off-by: Gabriel Shahrouzi <gshahrouzi@gmail.com>
Link: https://lore.kernel.org/r/20250419004306.669605-1-gshahrouzi@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Quentin Deslandes
7570ce5bdd staging: axis-fifo: replace spinlock with mutex
[ Upstream commit 0443b3f4436321e1098fdf74432c8867016339da ]

Following the device's documentation guidance, reading a packet from the
device or writing a packet to it must be atomic. Previously, only
reading device's vacancy (before writing on it) or occupancy (before
reading from it) was locked. Hence, effectively reading the packet or
writing the packet wasn't locked at all. However, reading a packet (and
writing one, to a lesser extent) requires to read 3 different registers
in a specific order, without missing one or else we should reset the
device.

This patch fixes the device's locking mechanism on the FIFO character
device. As the device was using copy_from_user() and copy_to_user(), we
need to replace spinlocks with mutexes.

Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Link: https://lore.kernel.org/r/20200121103958.12941-1-quentin.deslandes@itdev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: c6e8d85fafa7 ("staging: axis-fifo: Remove hardware resets for user errors")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Hans de Goede
af2fa177ed platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection
[ Upstream commit bfcfe6d335a967f8ea0c1980960e6f0205b5de6e ]

The wlan_ctrl_by_user detection was introduced by commit a50bd128f2
("asus-wmi: record wlan status while controlled by userapp").

Quoting from that commit's commit message:

"""
When you call WMIMethod(DSTS, 0x00010011) to get WLAN status, it may return

(1) 0x00050001 (On)
(2) 0x00050000 (Off)
(3) 0x00030001 (On)
(4) 0x00030000 (Off)
(5) 0x00000002 (Unknown)

(1), (2) means that the model has hardware GPIO for WLAN, you can call
WMIMethod(DEVS, 0x00010011, 1 or 0) to turn WLAN on/off.
(3), (4) means that the model doesn’t have hardware GPIO, you need to use
API or driver library to turn WLAN on/off, and call
WMIMethod(DEVS, 0x00010012, 1 or 0) to set WLAN LED status.
After you set WLAN LED status, you can see the WLAN status is changed with
WMIMethod(DSTS, 0x00010011). Because the status is recorded lastly
(ex: Windows), you can use it for synchronization.
(5) means that the model doesn’t have WLAN device.

WLAN is the ONLY special case with upper rule.
"""

The wlan_ctrl_by_user flag should be set on 0x0003000? ((3), (4) above)
return values, but the flag mistakenly also gets set on laptops with
0x0005000? ((1), (2)) return values. This is causing rfkill problems on
laptops where 0x0005000? is returned.

Fix the check to only set the wlan_ctrl_by_user flag for 0x0003000?
return values.

Fixes: a50bd128f2 ("asus-wmi: record wlan status while controlled by userapp")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219786
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250501131702.103360-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Al Viro
80a00ec057 do_umount(): add missing barrier before refcount checks in sync case
[ Upstream commit 65781e19dcfcb4aed1167d87a3ffcc2a0c071d47 ]

do_umount() analogue of the race fixed in 119e1ef80e "fix
__legitimize_mnt()/mntput() race".  Here we want to make sure that
if __legitimize_mnt() doesn't notice our lock_mount_hash(), we will
notice their refcount increment.  Harder to hit than mntput_no_expire()
one, fortunately, and consequences are milder (sync umount acting
like umount -l on a rare race with RCU pathwalk hitting at just the
wrong time instead of use-after-free galore mntput_no_expire()
counterpart used to be hit).  Still a bug...

Fixes: 48a066e72d ("RCU'd vfsmounts")
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Daniel Wagner
746723dfea nvme: unblock ctrl state transition for firmware update
[ Upstream commit 650415fca0a97472fdd79725e35152614d1aad76 ]

The original nvme subsystem design didn't have a CONNECTING state; the
state machine allowed transitions from RESETTING to LIVE directly.

With the introduction of nvme fabrics the CONNECTING state was
introduce. Over time the nvme-pci started to use the CONNECTING state as
well.

Eventually, a bug fix for the nvme-fc started to depend that the only
valid transition to LIVE was from CONNECTING. Though this change didn't
update the firmware update handler which was still depending on
RESETTING to LIVE transition.

The simplest way to address it for the time being is to switch into
CONNECTING state before going to LIVE state.

Fixes: d2fe192348f9 ("nvme: only allow entering LIVE from CONNECTING state")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Closes: https://lore.kernel.org/all/0134ea15-8d5f-41f7-9e9a-d7e6d82accaa@roeck-us.net
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
Thorsten Blum
c775b024d0 MIPS: Fix MAX_REG_OFFSET
[ Upstream commit c44572e0cc13c9afff83fd333135a0aa9b27ba26 ]

Fix MAX_REG_OFFSET to point to the last register in 'pt_regs' and not to
the marker itself, which could allow regs_get_register() to return an
invalid offset.

Fixes: 40e084a506 ("MIPS: Add uprobes support.")
Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00