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1,399,042 commits

Author SHA1 Message Date
Max Kellermann
249e0a47cd ceph: fix crash after fscrypt_encrypt_pagecache_blocks() error
The function move_dirty_folio_in_page_array() was created by commit
ce80b76dd3 ("ceph: introduce ceph_process_folio_batch() method") by
moving code from ceph_writepages_start() to this function.

This new function is supposed to return an error code which is checked
by the caller (now ceph_process_folio_batch()), and on error, the
caller invokes redirty_page_for_writepage() and then breaks from the
loop.

However, the refactoring commit has gone wrong, and it by accident, it
always returns 0 (= success) because it first NULLs the pointer and
then returns PTR_ERR(NULL) which is always 0.  This means errors are
silently ignored, leaving NULL entries in the page array, which may
later crash the kernel.

The simple solution is to call PTR_ERR() before clearing the pointer.

Cc: stable@vger.kernel.org
Fixes: ce80b76dd3 ("ceph: introduce ceph_process_folio_batch() method")
Link: https://lore.kernel.org/ceph-devel/aK4v548CId5GIKG1@swift.blarg.de/
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-09-09 12:57:03 +02:00
Max Kellermann
cce7c15faa ceph: always call ceph_shift_unused_folios_left()
The function ceph_process_folio_batch() sets folio_batch entries to
NULL, which is an illegal state.  Before folio_batch_release() crashes
due to this API violation, the function ceph_shift_unused_folios_left()
is supposed to remove those NULLs from the array.

However, since commit ce80b76dd3 ("ceph: introduce
ceph_process_folio_batch() method"), this shifting doesn't happen
anymore because the "for" loop got moved to ceph_process_folio_batch(),
and now the `i` variable that remains in ceph_writepages_start()
doesn't get incremented anymore, making the shifting effectively
unreachable much of the time.

Later, commit 1551ec61dc ("ceph: introduce ceph_submit_write()
method") added more preconditions for doing the shift, replacing the
`i` check (with something that is still just as broken):

- if ceph_process_folio_batch() fails, shifting never happens

- if ceph_move_dirty_page_in_page_array() was never called (because
  ceph_process_folio_batch() has returned early for some of various
  reasons), shifting never happens

- if `processed_in_fbatch` is zero (because ceph_process_folio_batch()
  has returned early for some of the reasons mentioned above or
  because ceph_move_dirty_page_in_page_array() has failed), shifting
  never happens

Since those two commits, any problem in ceph_process_folio_batch()
could crash the kernel, e.g. this way:

 BUG: kernel NULL pointer dereference, address: 0000000000000034
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 PGD 0 P4D 0
 Oops: Oops: 0002 [#1] SMP NOPTI
 CPU: 172 UID: 0 PID: 2342707 Comm: kworker/u778:8 Not tainted 6.15.10-cm4all1-es #714 NONE
 Hardware name: Dell Inc. PowerEdge R7615/0G9DHV, BIOS 1.6.10 12/08/2023
 Workqueue: writeback wb_workfn (flush-ceph-1)
 RIP: 0010:folios_put_refs+0x85/0x140
 Code: 83 c5 01 39 e8 7e 76 48 63 c5 49 8b 5c c4 08 b8 01 00 00 00 4d 85 ed 74 05 41 8b 44 ad 00 48 8b 15 b0 >
 RSP: 0018:ffffb880af8db778 EFLAGS: 00010207
 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000003
 RDX: ffffe377cc3b0000 RSI: 0000000000000000 RDI: ffffb880af8db8c0
 RBP: 0000000000000000 R08: 000000000000007d R09: 000000000102b86f
 R10: 0000000000000001 R11: 00000000000000ac R12: ffffb880af8db8c0
 R13: 0000000000000000 R14: 0000000000000000 R15: ffff9bd262c97000
 FS:  0000000000000000(0000) GS:ffff9c8efc303000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000034 CR3: 0000000160958004 CR4: 0000000000770ef0
 PKRU: 55555554
 Call Trace:
  <TASK>
  ceph_writepages_start+0xeb9/0x1410

The crash can be reproduced easily by changing the
ceph_check_page_before_write() return value to `-E2BIG`.

(Interestingly, the crash happens only if `huge_zero_folio` has
already been allocated; without `huge_zero_folio`,
is_huge_zero_folio(NULL) returns true and folios_put_refs() skips NULL
entries instead of dereferencing them.  That makes reproducing the bug
somewhat unreliable.  See
https://lore.kernel.org/20250826231626.218675-1-max.kellermann@ionos.com
for a discussion of this detail.)

My suggestion is to move the ceph_shift_unused_folios_left() to right
after ceph_process_folio_batch() to ensure it always gets called to
fix up the illegal folio_batch state.

Cc: stable@vger.kernel.org
Fixes: ce80b76dd3 ("ceph: introduce ceph_process_folio_batch() method")
Link: https://lore.kernel.org/ceph-devel/aK4v548CId5GIKG1@swift.blarg.de/
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-09-09 12:57:02 +02:00
Alex Markuze
bec324f33d ceph: fix race condition where r_parent becomes stale before sending message
When the parent directory's i_rwsem is not locked, req->r_parent may become
stale due to concurrent operations (e.g. rename) between dentry lookup and
message creation. Validate that r_parent matches the encoded parent inode
and update to the correct inode if a mismatch is detected.

[ idryomov: folded a follow-up fix from Alex to drop extra reference
  from ceph_get_reply_dir() in ceph_fill_trace():

  ceph_get_reply_dir() may return a different, referenced inode when
  r_parent is stale and the parent directory lock is not held.
  ceph_fill_trace() used that inode but failed to drop the reference
  when it differed from req->r_parent, leaking an inode reference.

  Keep the directory inode in a local variable and iput() it at
  function end if it does not match req->r_parent. ]

Cc: stable@vger.kernel.org
Signed-off-by: Alex Markuze <amarkuze@redhat.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-09-09 12:57:02 +02:00
Alex Markuze
15f519e9f8 ceph: fix race condition validating r_parent before applying state
Add validation to ensure the cached parent directory inode matches the
directory info in MDS replies. This prevents client-side race conditions
where concurrent operations (e.g. rename) cause r_parent to become stale
between request initiation and reply processing, which could lead to
applying state changes to incorrect directory inodes.

[ idryomov: folded a kerneldoc fixup and a follow-up fix from Alex to
  move CEPH_CAP_PIN reference when r_parent is updated:

  When the parent directory lock is not held, req->r_parent can become
  stale and is updated to point to the correct inode.  However, the
  associated CEPH_CAP_PIN reference was not being adjusted.  The
  CEPH_CAP_PIN is a reference on an inode that is tracked for
  accounting purposes.  Moving this pin is important to keep the
  accounting balanced. When the pin was not moved from the old parent
  to the new one, it created two problems: The reference on the old,
  stale parent was never released, causing a reference leak.
  A reference for the new parent was never acquired, creating the risk
  of a reference underflow later in ceph_mdsc_release_request().  This
  patch corrects the logic by releasing the pin from the old parent and
  acquiring it for the new parent when r_parent is switched.  This
  ensures reference accounting stays balanced. ]

Cc: stable@vger.kernel.org
Signed-off-by: Alex Markuze <amarkuze@redhat.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-09-09 12:57:02 +02:00
Johannes Berg
2682e7a317 wifi: iwlwifi: fix 130/1030 configs
The 130/1030 devices are really derivatives of 6030,
with some small differences not pertaining to the MAC,
so they must use the 6030 MAC config.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220472
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220517
Fixes: 35ac275ebe ("wifi: iwlwifi: cfg: finish config split")
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909121728.8e4911f12528.I3aa7194012a4b584fbd5ddaa3a77e483280f1de4@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-09-09 13:54:26 +03:00
Reinette Chatre
d2e1b84c51 fs/resctrl: Eliminate false positive lockdep warning when reading SNC counters
Running resctrl_tests on an SNC-2 system with lockdep debugging enabled
triggers several warnings with following trace:

  WARNING: CPU: 0 PID: 1914 at kernel/cpu.c:528 lockdep_assert_cpus_held
  ...
  Call Trace:
  __mon_event_count
  ? __lock_acquire
  ? __pfx___mon_event_count
  mon_event_count
  ? __pfx_smp_mon_event_count
  smp_mon_event_count
  smp_call_on_cpu_callback

get_cpu_cacheinfo_level() called from __mon_event_count() requires CPU hotplug
lock to be held. The hotplug lock is indeed held during this time, as
confirmed by the lockdep_assert_cpus_held() within mon_event_read() that calls
mon_event_count() via IPI, but the lockdep tracking is not able to follow the
IPI.

Fresh CPU cache information via get_cpu_cacheinfo_level() from
__mon_event_count() was added to support the fix for the issue where resctrl
inappropriately maintained links to L3 cache information that will be stale in
the case when the associated CPU goes offline.

Keep the cacheinfo ID in struct rdt_mon_domain to ensure that resctrl does not
maintain stale cache information while CPUs can go offline. Return to using
a pointer to the L3 cache information (struct cacheinfo) in struct rmid_read,
rmid_read::ci. Initialize rmid_read::ci before the IPI where it is used. CPU
hotplug lock is held across rmid_read::ci initialization and use to ensure
that it points to accurate cache information.

Fixes: 594902c986 ("x86,fs/resctrl: Remove inappropriate references to cacheinfo in the resctrl subsystem")
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2025-09-09 12:43:36 +02:00
Thomas Weißschuh
3c3af563b3 hrtimer: Reorder branches in hrtimer_clockid_to_base()
Align the ordering to the one used for hrtimer_bases.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-9-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
009eb5da29 hrtimer: Remove hrtimer_clock_base:: Get_time
The get_time() callbacks always need to match the bases clockid.
Instead of maintaining that association twice in hrtimer_bases,
use a helper.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-8-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
cdea7cdae2 hrtimer: Use hrtimer_cb_get_time() helper
Various other helpers contain open-coded implementations of
hrtimer_cb_get_time(). This prevents refactoring the implementation.

Reuse the existing helper.

For this to work, move hrtimer_cb_get_time() a bit up in the file and also
make its argument 'const'.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-7-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
44d7fb8acd media: pwm-ir-tx: Avoid direct access to hrtimer clockbase
The field timer->base->get_time is a private implementation detail and
should not be accessed outside of the hrtimer core.

Switch to an equivalent higher-level helper.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Sean Young <sean@mess.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-6-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
645e064430 ALSA: hrtimer: Avoid direct access to hrtimer clockbase
The field timer->base->get_time is a private implementation detail and
should not be accessed outside of the hrtimer core.

Switch to the equivalent helper.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-5-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
e887579516 lib: test_objpool: Avoid direct access to hrtimer clockbase
The field timer->base->get_time is a private implementation detail and
should not be accessed outside of the hrtimer core.

Switch to the equivalent helper.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-4-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
b68b7f3e9b sched/core: Avoid direct access to hrtimer clockbase
The field timer->base->get_time is a private implementation detail and
should not be accessed outside of the hrtimer core.

Switch to the equivalent helper.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-3-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:18 +02:00
Thomas Weißschuh
5f531fe9cb timers/itimer: Avoid direct access to hrtimer clockbase
The field timer->base->get_time is a private implementation detail and
should not be accessed outside of the hrtimer core.

Switch to the equivalent helper.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-2-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:17 +02:00
Thomas Weißschuh
24fb08dcc4 posix-timers: Avoid direct access to hrtimer clockbase
The field timer->base->get_time is a private implementation detail and
should not be accessed outside of the hrtimer core.

Switch to the equivalent helpers.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250821-hrtimer-cleanup-get_time-v2-1-3ae822e5bfbd@linutronix.de
2025-09-09 12:27:17 +02:00
Peng Fan
88d3671baf firmware: arm_scmi: imx: Discover MISC board info from the system manager
The i.MX SCMI MISC protocol can report board information from the
System Manager (SM), including a board name and board-specific
attributes. Query this during protocol initialization.

If the firmware does not implement BOARD_INFO, handle -EOPNOTSUPP
gracefully and continue.

Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250904-sm-misc-api-v1-v4-4-0bf10eaabdf1@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2025-09-09 11:26:20 +01:00
Ryan Chen
b2a0c13f8b irqchip/aspeed-scu-ic: Add support for AST2700 SCU interrupt controllers
AST2700 continues the multi-instance SCU interrupt controller model
introduced in the AST2600, with four independent interrupt domains (scu-ic0
to 3).

Unlike earlier generations which combine interrupt enable and status bits
into a single register, AST2700 separates these into distinct IER and ISR
registers. Support for this layout is implemented by using register offsets
and separate chained IRQ handlers.

The variant table is extended to cover AST2700 IC instances, enabling
shared initialization logic while preserving support for previous SoCs.

[ tglx: Simplified the logic and cleaned up coding style ]

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250908011812.1033858-5-ryan_chen@aspeedtech.com
2025-09-09 12:23:29 +02:00
Ryan Chen
ed7240444e dt-bindings: interrupt-controller: aspeed: Add AST2700 SCU IC compatibles
Add compatible strings for the four SCU interrupt controller instances
on the AST2700 SoC (scu-ic0 to 3), following the multi-instance model used
on AST2600.

Also define interrupt indices in the binding header.

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/all/20250908011812.1033858-4-ryan_chen@aspeedtech.com
2025-09-09 12:23:28 +02:00
Ryan Chen
23fc2a41a2 dt-bindings: mfd: aspeed: Add AST2700 SCU compatibles
Add SCU interrupt controller compatible strings for the AST2700 SoC:
scu-ic0 to 3. This extends the MFD binding to support AST2700-based
platforms.

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/all/20250908011812.1033858-3-ryan_chen@aspeedtech.com
2025-09-09 12:23:28 +02:00
Ryan Chen
86cd4301c2 irqchip/aspeed-scu-ic: Refactor driver to support variant-based initialization
The SCU IC driver handles each AST2600 instance with separate
initialization functions and hardcoded register definitions, which is
inflexible and creates duplicated code.

Consolidate the implementation by introducing a variant-based structure,
selected via compatible string, and use a unified init path and MMIO access
via of_iomap().  This simplifies the code and prepares for upcoming SoCs
like AST2700, which require split register handling.

[ tglx: Cleaned up coding style and massaged change log ]

Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250908011812.1033858-2-ryan_chen@aspeedtech.com
2025-09-09 12:23:28 +02:00
Nathan Chancellor
26a9f90b61 objtool: Ignore __pi___cfi_ prefixed symbols
When building with CONFIG_CFI_CLANG=y after the recent series to
separate the x86 startup code, there are objtool warnings along the
lines of:

  vmlinux.o: warning: objtool: __pi___cfi_startup_64_load_idt() falls through to next function __pi_startup_64_load_idt()
  vmlinux.o: warning: objtool: __pi___cfi_startup_64_setup_gdt_idt() falls through to next function __pi_startup_64_setup_gdt_idt()
  vmlinux.o: warning: objtool: __pi___cfi___startup_64() falls through to next function __pi___startup_64()

As the comment in validate_branch() states, this is expected, so ignore
these symbols in the same way that __cfi_ and __pfx_ symbols are already
ignored for the rest of the kernel.

Fixes: 7b38dec3c5 ("x86/boot: Create a confined code area for startup code")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
2025-09-09 12:02:01 +02:00
Dan Carpenter
a186120c78 irqchip/gic-v5: Fix error handling in gicv5_its_irq_domain_alloc()
Code in gicv5_its_irq_domain_alloc() has two issues:

 - it checks the wrong return value/variable when calling gicv5_alloc_lpi()

 - The cleanup code does not take previous loop iterations into account

Fix both issues at once by adding the right gicv5_alloc_lpi() variable
check and by reworking the function cleanup code to take into account
current and previous iterations.

[ lpieralisi: Reworded commit message ]

Fixes: 57d72196df ("irqchip/gic-v5: Add GICv5 ITS support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/all/20250908082745.113718-4-lpieralisi@kernel.org
2025-09-09 11:51:09 +02:00
Dan Carpenter
bfcd1fdaae irqchip/gic-v5: Fix loop in gicv5_its_create_itt_two_level() cleanup path
The "i" variable in gicv5_its_create_itt_two_level() needs to be signed
otherwise it can cause a forever loop in the function's cleanup path.

[ lpieralisi: Reworded commit message ]

Fixes: 57d72196df ("irqchip/gic-v5: Add GICv5 ITS support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/all/20250908082745.113718-3-lpieralisi@kernel.org
2025-09-09 11:51:09 +02:00
Dan Carpenter
5a5c48e870 irqchip/gic-v5: Delete a stray tab
Delete a stray tab that is indenting the code erroneously.

[ lpieralisi: Reworded commit message]

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/all/20250908082745.113718-2-lpieralisi@kernel.org
2025-09-09 11:51:08 +02:00
Brett A C Sheffield
aeb8d48ea9 selftests: net: add test for ipv6 fragmentation
Add selftest for the IPv6 fragmentation regression which affected
several stable kernels.

Commit a18dfa9925 ("ipv6: save dontfrag in cork") was backported to
stable without some prerequisite commits.  This caused a regression when
sending IPv6 UDP packets by preventing fragmentation and instead
returning -1 (EMSGSIZE).

Add selftest to check for this issue by attempting to send a packet
larger than the interface MTU. The packet will be fragmented on a
working kernel, with sendmsg(2) correctly returning the expected number
of bytes sent.  When the regression is present, sendmsg returns -1 and
sets errno to EMSGSIZE.

Link: https://lore.kernel.org/stable/aElivdUXqd1OqgMY@karahi.gladserv.com
Signed-off-by: Brett A C Sheffield <bacs@librecast.net>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250903154925.13481-1-bacs@librecast.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-09 11:43:59 +02:00
Chen Ni
52bdd69671 gpio: loongson-64bit: Remove unneeded semicolon
Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250909065913.4011133-1-nichen@iscas.ac.cn
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-09-09 11:36:42 +02:00
Oscar Maes
bf59028ea8 selftests: net: add test for destination in broadcast packets
Add test to check the broadcast ethernet destination field is set
correctly.

This test sends a broadcast ping, captures it using tcpdump and
ensures that all bits of the 6 octet ethernet destination address
are correctly set by examining the output capture file.

Co-developed-by: Brett A C Sheffield <bacs@librecast.net>
Signed-off-by: Brett A C Sheffield <bacs@librecast.net>
Signed-off-by: Oscar Maes <oscmaes92@gmail.com>
Link: https://patch.msgid.link/20250902150240.4272-1-oscmaes92@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-09 11:29:58 +02:00
Michal Wajdeczko
fd548b77d5 drm/xe/vf: Move VF CCS debugfs attribute
The VF CCS handling is per-device so its debugfs file should not
be exposed on per-GT basis. Move it up to the device level.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-8-michal.wajdeczko@intel.com
2025-09-09 11:27:52 +02:00
Michal Wajdeczko
55ddca2a3c drm/xe/vf: Move VF CCS data to xe_device
We only need single set of VF CCS contexts, they are not per-tile
as initial implementation might suggest. Move all VF CCS data from
xe_tile.sriov.vf to xe_device.sriov.vf. Also rename some structs to
align with the usage and fix their kernel-doc.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-7-michal.wajdeczko@intel.com
2025-09-09 11:27:50 +02:00
Michal Wajdeczko
e699700834 drm/xe/bo: Add xe_bo_has_valid_ccs_bb helper
This will allow as to drop ugly IS_VF_CCS_BB_VALID macro.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-6-michal.wajdeczko@intel.com
2025-09-09 11:27:49 +02:00
Michal Wajdeczko
b179dfd0db drm/xe/vf: Use single check when calling VF CCS functions
All xe_sriov_vf_ccs() functions but init() expect to be called
when initialization was successful and CCS handling is ready.

Update IS_VF_CCS_READY macro and use it as single entry guard.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-5-michal.wajdeczko@intel.com
2025-09-09 11:27:46 +02:00
Michal Wajdeczko
aa8d9d75ea drm/xe/vf: Drop IS_VF_CCS_INIT_NEEDED macro
We only use this macro once and we can open-code it to explicitly
show relevant conditions and avoid duplications.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-4-michal.wajdeczko@intel.com
2025-09-09 11:27:45 +02:00
Michal Wajdeczko
4e5bc50ad2 drm/xe/guc: Use proper flag definitions when registering context
In H2G action context type is specified in flags dword in bits 2:1.
Use generic FIELD_PREP macro instead of misleading BIT logic.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-3-michal.wajdeczko@intel.com
2025-09-09 11:27:44 +02:00
Michal Wajdeczko
dd432009f1 drm/xe/guc: Rename xe_guc_register_exec_queue
This function is dedicated for use by the VFs, we shouldn't use
name that might suggests it's general purpose. While there, update
asserts to better reflect intended usage.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Link: https://lore.kernel.org/r/20250908123025.747-2-michal.wajdeczko@intel.com
2025-09-09 11:27:42 +02:00
Hangbin Liu
d67ca09ca3 hsr: use netdev_master_upper_dev_link() when linking lower ports
Unlike VLAN devices, HSR changes the lower device’s rx_handler, which
prevents the lower device from being attached to another master.
Switch to using netdev_master_upper_dev_link() when setting up the lower
device.

This could improves user experience, since ip link will now display the
HSR device as the master for its ports.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250902065558.360927-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-09 11:27:37 +02:00
Miri Korenblit
bc4a45f8da wifi: iwlwifi: mld: CHANNEL_SURVEY_NOTIF is always supported
This notification is supported in FW since API 100.
Since we don't support any API older than that, we don't need to check
whether the notification is supported.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.b43f7da0d63b.I7386aeef5fae70dc4b0901cfb650eeaecb4c1575@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
9a8a37c14f wifi: iwlwifi: mld: remove support of iwl_esr_mode_notif version 1
The last FW API that supports version 5 is 99. Since this API is no
longer supported on any device that loads iwlmld, we can remove support
of it.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.e15a7fa15c70.Ibb8636e826136c8c31931e77f5ffa853372b4301@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
79c0faefef wifi: iwlwifi: mld: remove support from of sta cmd version 1
The last FW API that supports version 1 is 99. Since this API is no
longer supported on any device that loads iwlmld, we can remove support
of it.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.4d6689d5c4b2.I5d2bf7302eea8ac7a805f58e4e60e527d6f5b346@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
9175f32e3f wifi: iwlwifi: mld: remove support of roc cmd version 5
The last FW API that supports version 5 is 97. Since this API is no
longer supported on any device that loads iwlmld, we can remove support
of it.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.e53bd8553360.I6978c216b52b818b879d076a85c5f9edafcf2e99@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
d243f5c112 wifi: iwlwifi: mld: remove support of mac cmd ver 2
The last FW API that supported ver 2 is API 99 (core 96)
Since we no longer support it in any device that loads iwlmld, we can
remove support of it.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.a56bf370d31a.Ie1e93654ce9ee52e6ae3fda9bc898d611456ec41@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
e5e8d86eb1 wifi: iwlwifi: mld: don't consider phy cmd version 5
It was planed that iwlmld will be loaded also for HR and GF, which has
versions < 6. But eventually it was decided to keep use iwlmvm for those
devices, so iwlmld doesn't need to support those versions.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.42501c7b0baa.I207ff53d259cc90781a0082320e2646b35925e5f@changeid
2025-09-09 12:08:34 +03:00
Rotem Kerem
639401f629 wifi: iwlwifi: implement wowlan status notification API update
Add per key status indication in the WOWLAN status notification.
This update is required for fips. Each key entry now
includes a status field.

Keys are now processed as follows:
0: no key, ignore entry
1: old, use only metadata
2: new, use key material and metadata

While at it, fix tid_offloaded_tx error message to print the
actual variable being validated in iwl_mld_handle_wowlan_info_notif.

Signed-off-by: Rotem Kerem <rotem.kerem@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.0a2e7a62504c.Id195c9c83f9f767d1e3e458468af2d933774daa1@changeid
2025-09-09 12:08:34 +03:00
Nidhish A N
c5318e6e1c wifi: iwlwifi: fw: Add ASUS to PPAG and TAS list
Add ASUS to the list of OEMs that are allowed to use
the PPAG and TAS feature.

Signed-off-by: Nidhish A N <nidhish.a.n@intel.com>
Reviewed-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.499af6568e89.Iafb2cb1c83ff82712c0e9d5529f76bc226ed12dd@changeid
2025-09-09 12:08:34 +03:00
Pagadala Yesu Anjaneyulu
7a7c52645c wifi: iwlwifi: add kunit tests for nvm parse
nvm flags is part of nvm parse. Add test for VLP AP/CLIENT
enable/disable scenarios.

Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.a7a4713fbfee.Ia0caf8865e63b40826c9b66084bd20438554f15c@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
59cb902371 wifi: iwlwifi: api: add a flag to iwl_link_ctx_modify_flags
Add a new flag which, when set, will indicate that the UHR parameters in
the link command have changed.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.b399aebbc384.I8a5a2728e71d92db67d4a4e0f4c358ca7b16ff51@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
6a5114d8bf wifi: iwlwifi: pcie: move ltr_enabled to the specific transport
Currently it is under iwl_trans, which is the bus agnostic part of the
transport. But really it is relevant for pcie only, so move it to the
iwl_trans_pcie and export it via an API to the opmode.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.9f9dc80ab06c.I3eeca8b17abeba6ed30f0d681518c81ede0acf30@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
579c6a6e28 wifi: iwlwifi: pcie: move pm_support to the specific transport
Currently it is under iwl_trans, which is the bus agnostic part of the
transport. But really it is relevant for pcie only, so move it to the
iwl_trans_pcie and export it via an API to the opmode.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.997193cabd04.Ic6648f040430c94150d0fa11601f50a6a630b862@changeid
2025-09-09 12:08:34 +03:00
Miri Korenblit
da4234c0c4 wifi: iwlwifi: rename iwl_finish_nic_init
The function is called so because for older devices it sets a bit called
"init_done". But for the latest devices it sets a different bit,
"mac_init". Since this name is not clear anyway, rename it such that it
indicates the logic of the newer devices.
Also add the 'trans' prefix so iw will be clear from the name that this
is a transport API.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.a1de688e574b.Ibd41b0c8f7fbae77026e76dbbc085df3eecec538@changeid
2025-09-09 12:08:34 +03:00
Rotem Kerem
b7a962584f wifi: iwlwifi: replace SUPPRESS_CMD_ERROR_ONCE status bit with a boolean
Convert STATUS_SUPPRESS_CMD_ERROR_ONCE from a status bit to a simple
bool field in struct iwl_trans, as atomicity is not needed.

Signed-off-by: Rotem Kerem <rotem.kerem@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.b33366c11a45.I75aac05afd8c4d8ef217d03327c1a027d6e7667e@changeid
2025-09-09 12:08:34 +03:00
Rotem Kerem
728d92a341 wifi: iwlwifi: add STATUS_FW_ERROR API
Add iwl_trans_notify_fw_error() and iwl_trans_is_fw_error() for use by
op modes. These helpers provide a clean interface for marking and
checking firmware error state. This hides the trans internal
implementation details from callers.

Signed-off-by: Rotem Kerem <rotem.kerem@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250909061931.23f5160b3265.Iba325ffa4c6c6f7fc3a702fb6c1827b0857d0db3@changeid
2025-09-09 12:08:34 +03:00