The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate().
Signed-off-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250810-net-round-rate-v1-1-dbb237c9fe5c@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Use 'unsigned int' instead of 'int' for the local variable 'devlist_len'
because snd_hda_get_devices() returns an 'unsigned int' and the length
cannot be negative. Update the print format specifier and the if
condition accordingly.
Reformat calling snd_hda_codec_read() to fit in a single line while
we're at it.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250813210059.215912-2-thorsten.blum@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Use min() to simplify snd_hda_get_devices() and improve its readability.
Change the function parameter 'max_devices' from 'int' to 'unsigned int'
to avoid a min() signedness error. Update all related local variables
and the function's return type to 'unsigned int' accordingly.
No functional changes intended.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250813205507.215658-2-thorsten.blum@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A reasonably small collection of fixes that came in since the merge
window, mostly small and driver specific plus a cleanup of the menu
reorganisation to address some user confusion with the way the generic
drivers had been handled.
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Merge tag 'asoc-fix-v6.17-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.17
A reasonably small collection of fixes that came in since the merge
window, mostly small and driver specific plus a cleanup of the menu
reorganisation to address some user confusion with the way the generic
drivers had been handled.
Convert the Renesas RZ/G2L MIPI DSI Encoder driver from
SET_RUNTIME_PM_OPS() to RUNTIME_PM_OPS() and pm_ptr(). This lets us
drop the __maybe_unused annotations from its runtime suspend and resume
callbacks, and reduces kernel size in case CONFIG_PM is disabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/cdfc1b8ec9e62553654639b9e9026bfed8dd07d1.1752086582.git.geert+renesas@glider.be
The thunderbolt driver sets up device link dependencies from hotplug ports
to the Host Router (aka Native Host Interface, NHI). When resuming from
system sleep, this allows the Host Router to re-establish tunnels to
attached Thunderbolt devices before the hotplug ports resume.
To identify the hotplug ports, the driver utilizes the is_hotplug_bridge
flag which also encompasses ACPI slots handled by the ACPI hotplug driver.
Thunderbolt hotplug ports are always Hot-Plug Capable PCIe ports, so it is
more apt to identify them with the is_pciehp flag.
Similarly, hotplug ports on older Thunderbolt controllers have broken MSI
support and are quirked to use legacy INTx interrupts instead. The quirk
identifies them with is_hotplug_bridge, even though all affected ports are
also matched by is_pciehp. So use is_pciehp here as well.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Unsafe code in CpumaskVar's methods assumes that the type has the same
layout as `bindings::cpumask_var_t`. This is not guaranteed by
the default struct representation in Rust, but requires specifying the
`transparent` representation.
Fixes: 8961b8cb30 ("rust: cpumask: Add initial abstractions")
Signed-off-by: Baptiste Lepers <baptiste.lepers@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
The prefix as_* shouldn't be used for constructors. For further
motivation, see commit 2f5606afa4 ("device: rust: rename
Device::as_ref() to Device::from_raw()").
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Thomas Weißschuh says:
====================
net: Don't use %pK through printk or tracepoints
In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74d24 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through printk(). They can still unintentionally leak raw pointers or
acquire sleeping locks in atomic contexts.
Switch to the regular pointer formatting which is safer and
easier to reason about.
There are still a few users of %pK left, but these use it through seq_file,
for which its usage is safe.
====================
Link: https://patch.msgid.link/20250811-restricted-pointers-net-v5-0-2e2fdc7d3f2c@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74d24 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through tracepoints. They can still unintentionally leak raw pointers or
acquire sleeping locks in atomic contexts.
Switch to the regular pointer formatting which is safer and
easier to reason about.
There are still a few users of %pK left, but these use it through seq_file,
for which its usage is safe.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250811-restricted-pointers-net-v5-2-2e2fdc7d3f2c@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74d24 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through printk(). They can still unintentionally leak raw pointers or
acquire sleeping locks in atomic contexts.
Switch to the regular pointer formatting which is safer and
easier to reason about.
There are still a few users of %pK left, but these use it through seq_file,
for which its usage is safe.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250811-restricted-pointers-net-v5-1-2e2fdc7d3f2c@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Davide Caratti says:
====================
ets: use old 'nbands' while purging unused classes
- patch 1/2 fixes a NULL dereference in the control path of sch_ets qdisc
- patch 2/2 extends kselftests to verify effectiveness of the above fix
====================
Link: https://patch.msgid.link/cover.1755016081.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tony Nguyen says:
====================
ixgbe: bypass devlink phys_port_name generation
Jedrzej adds option to skip phys_port_name generation and opts
ixgbe into it as some configurations rely on pre-devlink naming
which could end up broken as a result.
* '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
ixgbe: prevent from unwanted interface name changes
devlink: let driver opt out of automatic phys_port_name generation
====================
Link: https://patch.msgid.link/20250812205226.1984369-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Extend the existing netconsole cmdline selftest to also validate that
interface selection can be performed via MAC address.
The test now validates that netconsole works with both interface name
and MAC address, improving test coverage.
Suggested-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Link: https://patch.msgid.link/20250812-netcons-cmdline-selftest-v2-1-8099fb7afa9e@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The data page pool always fills the HW rx ring with pages. On arm64 with
64K pages, this will waste _at least_ 32K of memory per entry in the rx
ring.
Fix by fragmenting the pages if PAGE_SIZE > BNXT_RX_PAGE_SIZE. This
makes the data page pool the same as the header pool.
Tested with iperf3 with a small (64 entries) rx ring to encourage buffer
circulation.
Fixes: cd1fafe7da ("eth: bnxt: add support rx side device memory TCP")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Link: https://patch.msgid.link/20250812182907.1540755-1-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When `devm_add_action_or_reset()` fails, it is due to a failed memory
allocation and will thus return `-ENOMEM`. `dev_err_probe()` doesn't do
anything when error is `-ENOMEM`. Therefore, remove the useless call to
`dev_err_probe()` when `devm_add_action_or_reset()` fails, and just
return the value instead.
Signed-off-by: Waqar Hameed <waqar.hameed@axis.com>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/pnd1ppghh4p.a.out@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Replace the strcpy() calls that copy the device name into ifr->ifr_name
with strscpy() to avoid potential overflows and guarantee NULL termination.
Destination is ifr->ifr_name (size IFNAMSIZ).
Tested in QEMU (BusyBox rootfs):
- Created TUN devices via TUNSETIFF helper
- Set addresses and brought links up
- Verified long interface names are safely truncated (IFNAMSIZ-1)
Signed-off-by: Miguel García <miguelgarciaroman8@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250812082244.60240-1-miguelgarciaroman8@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Test various aspects of FDB activity notification control:
* Transitioning of an FDB entry from inactive to active state.
* Transitioning of an FDB entry from active to inactive state.
* Avoiding the resetting of an FDB entry's last activity time (i.e.,
"updated" time) using the "norefresh" keyword.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20250812071810.312346-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce the second WDMA RX ring in WED driver for MT7988 SoC since the
Mediatek MT7992 WiFi chipset supports two separated WDMA rings.
Add missing MT7988 configurations to properly support WED for MT7992 in
MT76 driver.
Co-developed-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250812-mt7992-wed-support-v3-1-9ada78a819a4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Previous commit 230b183921 ("net: Use standard structures for generic
socket address structures.") use 'struct sockaddr_storage address;'
to replace 'char address[MAX_SOCK_ADDR];'.
The macro MAX_SOCK_ADDR is removed by commit 01893c82b4 ("net: Remove
MAX_SOCK_ADDR constant").
The comment in vsock_getname() is outdated, use sizeof(struct
sockaddr_storage) instead of magic value 128.
Signed-off-by: Wang Liang <wangliang74@huawei.com>
Link: https://patch.msgid.link/20250812015929.1419896-1-wangliang74@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the data argument of Devres::new() is Err(), we leak the preceding
call to devm_add_action().
In order to fix this, call devm_add_action() in a unit type initializer in
try_pin_init!() after the initializers of all other fields.
Fixes: f5d3ef25d2 ("rust: devres: get rid of Devres' inner Arc")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250812130928.11075-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Introduce error handling to address an issue where, after a hotplug
event, the cursor continues to update. This situation can lead to a
kernel panic due to accessing the NULL `old_state->crtc`.
E,g.
Unable to handle kernel NULL pointer dereference at virtual address
Call trace:
mtk_crtc_plane_disable+0x24/0x140
mtk_plane_atomic_update+0x8c/0xa8
drm_atomic_helper_commit_planes+0x114/0x2c8
drm_atomic_helper_commit_tail_rpm+0x4c/0x158
commit_tail+0xa0/0x168
drm_atomic_helper_commit+0x110/0x120
drm_atomic_commit+0x8c/0xe0
drm_atomic_helper_update_plane+0xd4/0x128
__setplane_atomic+0xcc/0x110
drm_mode_cursor_common+0x250/0x440
drm_mode_cursor_ioctl+0x44/0x70
drm_ioctl+0x264/0x5d8
__arm64_sys_ioctl+0xd8/0x510
invoke_syscall+0x6c/0xe0
do_el0_svc+0x68/0xe8
el0_svc+0x34/0x60
el0t_64_sync_handler+0x1c/0xf8
el0t_64_sync+0x180/0x188
Adding NULL pointer checks to ensure stability by preventing operations
on an invalid CRTC state.
Fixes: d208261e9f ("drm/mediatek: Add wait_event_timeout when disabling plane")
Signed-off-by: Jason-JH Lin <jason-jh.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20250728025036.24953-1-jason-jh.lin@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Tiezhu Yang says:
====================
Refine stmmac code
Here are three small patches to refine stmmac code when debugging and
testing the problem "Failed to reset the dma".
====================
Link: https://patch.msgid.link/20250811073506.27513-1-yangtiezhu@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If the MAC controller does not connect to any PHY interface, there is a
missing clock, then the DMA reset fails.
For this case, the DMA_BUS_MODE_SFT_RESET bit is 1 before software reset,
just print an error message which gives a hint the PHY clock is missing,
and then return -EINVAL immediately to avoid waiting for the timeout when
the DMA reset fails in loongson_dwmac_fix_reset().
With this patch, for the normal end user, the computer start faster with
reducing boot time for 2 seconds on the specified mainboard.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://patch.msgid.link/20250811073506.27513-4-yangtiezhu@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In order to use netdev_err() to print message in the callback function of
fix_soc_reset(), change fix_soc_reset() to have "struct stmmac_priv *" as
its first parameter.
This is preparation for later patch, no functionality change.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://patch.msgid.link/20250811073506.27513-3-yangtiezhu@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
stmmac_hw_setup() may return 0 on success and an appropriate negative
integer as defined in errno.h file on failure, just check it and then
return early if failed in stmmac_resume().
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://patch.msgid.link/20250811073506.27513-2-yangtiezhu@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit d6212d82bf ("selftests/bpf: Consolidate kernel modules into
common directory") consolidated the Makefile of test_kmods. However,
since it removed test_kmods from TEST_GEN_PROGS_EXTENDED, the kernel
modules required by bpf selftests are now missing from kselftest_install
when "make install". Fix it by adding test_kmod to TEST_GEN_FILES.
Fixes: d6212d82bf ("selftests/bpf: Consolidate kernel modules into common directory")
Signed-off-by: Amery Hung <ameryhung@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250812175039.2323570-1-ameryhung@gmail.com
In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74d24 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through printk(). They can still unintentionally leak raw pointers or
acquire sleeping locks in atomic contexts.
Switch to the regular pointer formatting which is safer and
easier to reason about.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250811-restricted-pointers-bpf-v1-1-a1d7cc3cb9e7@linutronix.de
Use the newly added of_reserved_mem_region_to_resource() function to
handle "memory-region" properties.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250703183447.2073902-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
The FRED specification has been changed in v9.0 to state that there
is no need for FRED event handlers to begin with ENDBR64, because
in the presence of supervisor indirect branch tracking, FRED event
delivery does not enter the WAIT_FOR_ENDBRANCH state.
As a result, remove ENDBR64 from FRED entry points.
Then add ANNOTATE_NOENDBR to indicate that FRED entry points will
never be used for indirect calls to suppress an objtool warning.
This change implies that any indirect CALL/JMP to FRED entry points
causes #CP in the presence of supervisor indirect branch tracking.
Credit goes to Jennifer Miller <jmill@asu.edu> and other contributors
from Arizona State University whose research shows that placing ENDBR
at entry points has negative value thus led to this change.
Note: This is obviously an incompatible change to the FRED
architecture. But, it's OK because there no FRED systems out in the
wild today. All production hardware and late pre-production hardware
will follow the FRED v9 spec and be compatible with this approach.
[ dhansen: add note to changelog about incompatibility ]
Fixes: 14619d912b ("x86/fred: FRED entry/exit and dispatch code")
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Link: https://lore.kernel.org/linux-hardening/Z60NwR4w%2F28Z7XUa@ubun/
Cc:stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250716063320.1337818-1-xin%40zytor.com
This commit adds to the rcu_barrier() kerneldoc header stating that this
function hurries lazy callbacks and that it does not normally result in
additional RCU grace periods.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
emulate_vsyscall() expects to see X86_PF_INSTR in PFEC on a vsyscall
page fault, but the CPU does not report X86_PF_INSTR if neither
X86_FEATURE_NX nor X86_FEATURE_SMEP are enabled.
X86_FEATURE_NX should be enabled on nearly all 64-bit CPUs, except for
early P4 processors that did not support this feature.
Instead of explicitly checking for X86_PF_INSTR, compare the fault
address to RIP.
On machines with X86_FEATURE_NX enabled, issue a warning if RIP is equal
to fault address but X86_PF_INSTR is absent.
[ dhansen: flesh out code comments ]
Originally-by: Dave Hansen <dave.hansen@intel.com>
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Link: https://lore.kernel.org/all/bd81a98b-f8d4-4304-ac55-d4151a1a77ab@intel.com
Link: https://lore.kernel.org/all/20250624145918.2720487-1-kirill.shutemov%40linux.intel.com
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Merge tag 'nf-25-08-13' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for *net*:
1) I managed to add a null dereference crash in nft_set_pipapo
in the current development cycle, was not caught by CI
because the avx2 implementation is fine, but selftest
splats when run on non-avx2 host.
2) Fix the ipvs estimater kthread affinity, was incorrect
since 6.14. From Frederic Weisbecker.
3) nf_tables should not allow to add a device to a flowtable
or netdev chain more than once -- reject this.
From Pablo Neira Ayuso. This has been broken for long time,
blamed commit dates from v5.8.
* tag 'nf-25-08-13' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: reject duplicate device on updates
ipvs: Fix estimator kthreads preferred affinity
netfilter: nft_set_pipapo: fix null deref for empty set
====================
Link: https://patch.msgid.link/20250813113800.20775-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Refactor the gpio-aggregator module as a prerequisite for merging the
pin controller driver for AAEON UP boards.
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Merge tag 'gpio-aggregator-refactoring-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel
Immutable branch for the pinctrl tree to pull from
Refactor the gpio-aggregator module as a prerequisite for merging the
pin controller driver for AAEON UP boards.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It is now possible to assign BARs while creating a vNTB endpoint function.
Update the documentation accordingly.
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250731-vntb-doc-v1-1-95a0e0cd28d0@baylibre.com
Commit eefb83790a ("misc: pci_endpoint_test: Add doorbell test case")
added NO_BAR (-1) to the pci_barno enum which, in practical terms,
changes the enum from an unsigned int to a signed int. If the user
passes a negative number in pci_endpoint_test_ioctl() then it results in
an array underflow in pci_endpoint_test_bar().
Fixes: eefb83790a ("misc: pci_endpoint_test: Add doorbell test case")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/aIzzZ4vc6ZrmM9rI@suswa
