The mvneta driver uses the hardware Buffer Manager (BM) for RX buffer
allocation. During suspend, mvneta disables its clock, causing BM to
lose all buffer address state. On resume, mvneta_bm_port_init() re-
attaches the BM pool to the NIC, but BM hardware returns stale/garbage
buffer addresses. When NAPI poll processes these buffers, DMA cache
sync hits an invalid virtual address causing a kernel panic:
Unable to handle kernel paging request at virtual address b0000080
PC is at v7_dma_inv_range
Call trace:
v7_dma_inv_range from arch_sync_dma_for_cpu+0x94/0x158
arch_sync_dma_for_cpu from __dma_sync_single_for_cpu+0xc4/0x15c
__dma_sync_single_for_cpu from mvneta_rx_swbm+0x6c8/0xf48
mvneta_rx_swbm from mvneta_poll+0x6fc/0x70c
mvneta_poll from __napi_poll.constprop.0+0x2c/0x1e0
__napi_poll.constprop.0 from net_rx_action+0x160/0x2c4
net_rx_action from handle_softirqs+0xd8/0x2b8
handle_softirqs from run_ksoftirqd+0x30/0x94
run_ksoftirqd from smpboot_thread_fn+0x100/0x204
smpboot_thread_fn from kthread+0xf4/0x110
kthread from ret_from_fork+0x14/0x28
Fix by adding suspend/resume callbacks to the BM driver:
- suspend: drain all buffers (with DMA unmapping), free the BPPE
regions, and reset pool state to FREE before stopping BM and gating
the clock.
- resume: enable the clock, reinitialize BM defaults, and restore pool
read/write pointers and size registers. Pool allocation and buffer
refill are handled by mvneta_resume() through the normal
mvneta_bm_port_init() path, which sees pools as FREE and performs
full initialization identical to probe.
Add a device_link (DL_FLAG_AUTOREMOVE_CONSUMER) in mvneta_probe to
guarantee BM resumes before mvneta and suspends after mvneta. If the
link cannot be created, fall back to SW buffer management to avoid a
potential crash on resume due to unordered PM transitions.
Signed-off-by: Yun Zhou <yun.zhou@windriver.com>
Link: https://patch.msgid.link/20260630060311.4072140-1-yun.zhou@windriver.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The batch prepare path rereads its userspace element array when rolling
back a partially prepared batch. Userspace can change an already
processed tag before the second read, causing rollback to reject the
replacement tag and leave earlier I/O slots prepared. The
WARN_ON_ONCE() in the rollback path then fires.
Copy the bounded batch into kernel memory before changing any I/O state
and use the same snapshot for preparation and rollback. Commit and fetch
batches retain the existing chunked userspace walk.
Fixes: b256795b36 ("ublk: handle UBLK_U_IO_PREP_IO_CMDS")
Reported-by: syzbot+1a67ee1aa79484801ec6@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=1a67ee1aa79484801ec6
Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com>
Reviewed-by: Ming Lei <tom.leiming@gmail.com>
Link: https://patch.msgid.link/20260630211827.50475-1-alhouseenyousef@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
setup_boot_config() open-coded the same "is bootconfig requested on the
kernel command line?" check that setup_arch() performs via the shared
bootconfig_cmdline_requested() helper. Switch it to the helper so the
early (setup_arch) and late (setup_boot_config) paths use one parser and
cannot disagree on what counts as opt-in.
The helper also reports the offset of the init arguments following a "--"
separator, which is exactly what initargs_offs needs, so the local
parse_args() call, its bootconfig_params() callback and the tmp_cmdline
copy are removed.
No functional change intended.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-9-24ab72139c29@debian.org/
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
setup_boot_config() folds the embedded bootconfig "kernel" subtree into
the command line via xbc_make_cmdline("kernel"). A subsequent patch lets
an architecture prepend the build-time-rendered embedded "kernel" keys
to boot_command_line early in setup_arch(); rendering them again here
would then duplicate every key in saved_command_line and make
accumulating handlers (console=, earlycon=, ...) re-register the same
value.
Track whether the bootconfig data came from the embedded source
(from_embedded) and skip the runtime render only when the early prepend
actually happened, as reported by xbc_embedded_cmdline_applied(). On
architectures that do not select ARCH_SUPPORTS_CMDLINE_FROM_BOOTCONFIG
that helper is a stub returning false, so this path is unchanged and the
embedded "kernel" keys still reach the cmdline via the runtime parser
exactly as before.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-8-24ab72139c29@debian.org/
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Call xbc_prepend_embedded_cmdline() in setup_arch() right after the
CONFIG_CMDLINE merge and before strscpy(command_line, ...) so the
build-time-rendered embedded bootconfig "kernel" subtree is part of
boot_command_line by the time parse_early_param() runs. early_param()
handlers (mem=, earlycon=, loglevel=, ...) now see values supplied via
CONFIG_BOOT_CONFIG_EMBED_FILE without parsing bootconfig at runtime.
Gate the prepend on the same opt-in the runtime parser uses: prepend
when "bootconfig" is present on the command line, or when
CONFIG_BOOT_CONFIG_FORCE is set. Detect it with parse_args(), exactly
as setup_boot_config() does, so both agree on what counts as opt-in:
any "bootconfig" key regardless of value (bare, =0, =1, ...), and only
before the "--" that separates init arguments. Sharing the parser keeps
the early and late paths from diverging -- e.g. "bootconfig=0" or a
"-- bootconfig" meant for init must not apply the embedded keys early
while the runtime parser skips them.
The prepend necessarily runs before setup_boot_config() detects an
initrd bootconfig, so an initrd cannot override the embedded "kernel"
keys for early_param(). This is intentional: the embedded cmdline acts
like a build-time CONFIG_CMDLINE. An initrd bootconfig's "kernel" keys
never reached early_param() anyway (they apply late via
extra_command_line), so nothing is lost -- the initrd keys still apply
late, with last-wins keeping the embedded values in effect.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-7-24ab72139c29@debian.org/
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Add a section describing CONFIG_CMDLINE_FROM_BOOTCONFIG: what it
does (renders the embedded "kernel" subtree to a flat cmdline at
build time so early_param() handlers see the values), what it
requires (BOOT_CONFIG_EMBED, a non-empty BOOT_CONFIG_EMBED_FILE,
CONFIG_CMDLINE to be empty, and ARCH_SUPPORTS_CMDLINE_FROM_BOOTCONFIG --
currently x86 only), the bootconfig opt-in semantics, the initrd-vs-embedded
precedence, and the soft-error overflow behavior.
This addresses feedback from the Sashiko AI review and Masami Hiramatsu to
document the CONFIG_CMDLINE requirement, which is enforced at the Kconfig
level but was not mentioned in the documentation, potentially confusing users
who might satisfy all other requirements but still find the option hidden in
menuconfig if CONFIG_CMDLINE is non-empty.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-6-24ab72139c29@debian.org/
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Add a helper that prepends the build-time-rendered embedded bootconfig
"kernel" subtree (embedded_kernel_cmdline[] from embedded-cmdline.S) to
a cmdline buffer with a separating space. Architectures call this from
setup_arch() before parse_early_param() so early_param() handlers
(mem=, earlycon=, loglevel=, ...) see values supplied via the embedded
bootconfig.
The in-place prepend (shift the existing string right, then drop the
embedded string in front) is factored into a small str_prepend() helper.
On overflow the helper logs an error and leaves the cmdline untouched
rather than panicking. Booting without the embedded values is better
than refusing to boot, and the error tells the user why their embedded
keys are missing.
The helper records whether it actually prepended, exposed via
xbc_embedded_cmdline_applied(). setup_boot_config() uses this to decide
whether the runtime "kernel" render would duplicate keys already folded
into boot_command_line.
Also add bootconfig_cmdline_requested(), a small parse_args() wrapper
that reports whether "bootconfig" was passed on the command line and,
via an optional out-parameter, where the "--" init arguments begin.
setup_arch() and setup_boot_config() share it so the early and late
paths agree on the opt-in. It sits under CONFIG_BOOT_CONFIG rather than
CONFIG_CMDLINE_FROM_BOOTCONFIG because the runtime parser needs it on
every bootconfig build.
When CONFIG_CMDLINE_FROM_BOOTCONFIG=n, the public declaration in
<linux/bootconfig.h> resolves to a no-op stub so callers compile
unchanged.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-5-24ab72139c29@debian.org/
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
The previous patch builds tools/bootconfig during 'make prepare' to
render the embedded bootconfig cmdline, but nothing removes it on
'make clean', leaving the compiled tool and its objects behind.
Wire a bootconfig_clean hook into the top-level clean target so the
compiled tool and its objects are removed by make clean, matching the
prepare-wired tools/objtool and tools/bpf/resolve_btfids.
The hook runs tools/bootconfig's Makefile via $(MAKE), which the kernel
build invokes with -rR (MAKEFLAGS += -rR). -rR drops the built-in $(RM)
variable, so the existing "$(RM) -f ..." clean recipe would expand to a
bare "-f ..." and fail. Spell the recipe with a literal "rm -f" so it
keeps working both standalone and when invoked from Kbuild.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-4-24ab72139c29@debian.org/
Reviewed-by: Nicolas Schier <n.schier@fritz.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Add the build-time pipeline that renders the "kernel" subtree of
CONFIG_BOOT_CONFIG_EMBED_FILE into a flat cmdline string and stashes
it in .init.rodata as embedded_kernel_cmdline[]. A follow-up patch
adds the runtime helper that prepends this string to boot_command_line
during early architecture setup so parse_early_param() sees the values.
The build wires up:
tools/bootconfig -C kernel - userspace tool already shared with
lib/bootconfig.c, used here in -C mode
to render a bootconfig file to a cmdline
lib/embedded-cmdline.S - .incbin's the rendered text plus a NUL
(listed under the EXTRA BOOT CONFIG
MAINTAINERS entry)
lib/Makefile rule - runs tools/bootconfig at build time
Makefile prepare dep - ensures tools/bootconfig is built first,
same pattern as tools/objtool and
tools/bpf/resolve_btfids
Drop the test target from tools/bootconfig/Makefile's default 'all'
recipe so that hooking the binary into the kernel build does not run
test-bootconfig.sh on every prepare. The tests stay available as
'make -C tools/bootconfig test', matching the convention of
tools/objtool and tools/bpf/resolve_btfids whose 'all' targets only
build the binary.
Require BOOT_CONFIG_EMBED_FILE to be non-empty before the new option
can be enabled, otherwise tools/bootconfig -C runs against an empty
file and prints a parse error on every kernel build.
The feature gates on CONFIG_ARCH_SUPPORTS_CMDLINE_FROM_BOOTCONFIG, a
silent symbol arches select once they've wired the prepend call into
setup_arch(). No arch selects it in this patch, so the user-visible
CONFIG_CMDLINE_FROM_BOOTCONFIG is not yet enableable; when an arch
later opts in, the runtime behavior is added by the follow-up patches.
tools/bootconfig also installs on target systems, so its own Makefile
keeps $(CC) and stays cross-buildable as a standalone tool. The kernel
build, which runs the tool on the build host during prepare, instead
forces CC=$(HOSTCC) from a dedicated tools/bootconfig rule and clears
CROSS_COMPILE= in the sub-make. Without that clear, an LLVM=1 cross
build would inherit CROSS_COMPILE and tools/scripts/Makefile.include
would inject --target=/--sysroot= flags into the host clang invocation,
producing a target binary that fails to exec ("Exec format error").
embedded-cmdline.S places the rendered string in its own .init.rodata
subsection (.init.rodata.embed_cmdline) with the "a" (allocatable,
read-only) flag and %progbits. lib/bootconfig-data.S already places
the embedded bootconfig blob in .init.rodata with the "aw" flag
(xbc_init() rewrites separators in place, so that data must be
writable). Using a distinct subsection name avoids the ld.lld section-
type mismatch that would otherwise arise from mixing "a" and "aw"
under the same name; the linker's "*(.init.rodata .init.rodata.*)"
glob still folds both into the init image and frees them after boot.
A follow-up patch wires the build-time tools/bootconfig into the
top-level clean target.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-3-24ab72139c29@debian.org/
Reviewed-by: Nicolas Schier <n.schier@fritz.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
xbc_node_for_each_key_value() walks to the first leaf under @root, and
when @root is itself a leaf it yields @root. That happens not only for
an empty "kernel {}" subtree, but also when @root carries both a value
and subkeys, e.g.
kernel = x
kernel.foo = bar
Here @root ("kernel") is a leaf because its first child is the value
node "x", so the iterator returns @root first. Feeding @root back into
xbc_node_compose_key_after(root, root) returns -EINVAL, which the only
in-kernel caller papers over with a "len <= 0" check -- but the
follow-up tools/bootconfig -C user propagates the error and turns such
a bootconfig into a build failure. Worse, short-circuiting the whole
call on a leaf @root would silently drop the valid "kernel.foo = bar"
descendant that this patch should render.
Skip @root inside the loop instead of bailing out: the value-only entry
is dropped (it is rendered through the "kernel" cmdline path, not here),
while real descendant keys are still emitted. An entirely empty subtree
now renders nothing and returns 0 rather than -EINVAL, matching the
"nothing to render is not an error" semantics expected by the new
build-time caller.
Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-2-24ab72139c29@debian.org/
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
For debugging probe events, it is helpful to verify the compiled
fetch instructions for each probe argument. This introduces a new
kernel config CONFIG_PROBE_EVENTS_DUMP_FETCHARG to decode the
instruction sequence of each argument and display it under a
commented line starting with '#' immediately following the dynamic
event definition (such as in dynamic_events, kprobe_events,
uprobe_events, etc.).
For example:
/sys/kernel/tracing # cat dynamic_events
p:kprobes/p_vfs_read_0 vfs_read arg1=+0(file):ustring arg2=%ax:x16
# arg1: ARG(0) -> ST_USTRING(offset=0,size=4) -> END
# arg2: REG(80) -> ST_RAW(size=2) -> END
Link: https://lore.kernel.org/all/178271359508.1176915.11895926894608440183.stgit@devnote2/
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a
macro that only gets defined by the Makefiles in the kernel.
This can be very confusing when switching between userspace
and kernelspace coding, or when dealing with uapi headers that
rather should use __ASSEMBLER__ instead. So let's standardize now
on the __ASSEMBLER__ macro that is provided by the compilers.
Link: https://lore.kernel.org/all/20260619161434.88270-1-thuth@redhat.com/
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
We can pass NULL as id pointer to btf_type_skip_modifiers if we do not
need the id of the returned btf_type.
Link: https://lore.kernel.org/all/20260623132937.3494895-1-martin@kaiser.cx/
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
The shared probe argument parser rejects file offsets for kernel probes.
This path is used outside the kprobe event parser too, but the diagnostic
currently says "with kprobe" even when emitted from another probe path.
Make the diagnostic probe-agnostic.
Link: https://lore.kernel.org/all/20260622160032.99834-1-pyudistira519@gmail.com/
Signed-off-by: Yudistira Putra <pyudistira519@gmail.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
When a QP/CQ/SRQ is created, a two step process is used
where the buffer is allocated in userspace and explicitly
registered with the normal reg_mr mechanism prior to creating
the actual QP/CQ/SRQ object.
These special registrations are indicated via an ABI field
so the driver knows that they do not have a valid mkey and
to skip the actual CQP command submission.
Since these are real MR objects from the core's perspective,
it is possible for a user application to invoke rereg_mr on them
and cause a real CQP op to be emitted with the zero-initialized
mkey value of 0.
Fix this by preventing rereg_mr on these special regions.
Fixes: 5ac388db27 ("RDMA/irdma: Add support to re-register a memory region")
Signed-off-by: Jacob Moroni <jmoroni@google.com>
Reviewed-by: David Hu <xuehaohu@google.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
try_smi_init() allocates new_smi->si_sm and later calls
ipmi_register_smi_mod(), which maps to ipmi_add_smi().
During ipmi_add_smi(), the upper IPMI message handler obtains the
initial BMC device information through __bmc_get_device_id(). This can
fail if the BMC does not return a successful response to the Get Device
ID command.
When the BMC returns a nonzero completion code, the device-id helper
retries the command and eventually returns -EIO if the device ID still
cannot be fetched.
On this failure path, ipmi_add_smi() logs "Unable to get the device id"
and goes to out_err_started, where it invokes the lower driver's
shutdown callback. try_smi_init() then logs the returned registration
failure:
ipmi_si IPI0001:00: IPMI message handler: Unable to get the device id: -5
ipmi_si IPI0001:00: Unable to register device: error -5
For ipmi_si, the shutdown callback is shutdown_smi(), which cleans up
the SI state machine data, frees smi_info->si_sm, and sets
smi_info->si_sm and smi_info->intf to NULL.
However, intf->in_shutdown is not set on this failed-registration
rollback path. Therefore, the asynchronous redo_bmc_reg work item can
still retry BMC device-id probing after the lower driver has already
cleared its SI state machine data. In the observed case, that retry path
reached start_next_msg(), which passed the NULL smi_info->si_sm pointer
to the selected KCS state machine handler:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
Workqueue: events redo_bmc_reg [ipmi_msghandler]
RIP: start_kcs_transaction+0x2c/0x190 [ipmi_si]
Call Trace:
start_next_msg+0x50/0x80 [ipmi_si]
check_start_timer_thread.part.9+0x3b/0x50 [ipmi_si]
sender+0x69/0x80 [ipmi_si]
i_ipmi_request+0x2ac/0x9d0 [ipmi_msghandler]
__get_device_id.isra.29+0xaa/0x180 [ipmi_msghandler]
__bmc_get_device_id+0xef/0x950 [ipmi_msghandler]
redo_bmc_reg+0x52/0x60 [ipmi_msghandler]
process_one_work+0x1a7/0x360
Set intf->in_shutdown on the out_err_started path before invoking the
lower driver's shutdown callback. This prevents later redo_bmc_reg
retries from using an interface whose lower driver state has been
cleaned up, and applies the same shutdown state to other IPMI interfaces
as well.
Fixes: 2512e40e48 ("ipmi: Rework SMI registration failure")
Cc: stable@vger.kernel.org
Signed-off-by: Seiji Nishikawa <snishika@redhat.com>
Message-ID: <20260630174348.1483814-1-snishika@redhat.com>
Signed-off-by: Corey Minyard <corey@minyard.net>
ipmb_write() read message fields before validating the length byte.
A zero or short write can read uninitialized stack bytes.
A length smaller than the SMBus header underflows the block write length.
Require a non-empty buffer and the minimum IPMB request length.
Also require the length byte plus payload before parsing the message.
Fixes: 51bd6f2915 ("Add support for IPMB driver")
Cc: stable@vger.kernel.org
Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com>
Message-ID: <20260624175353.8592-1-alhouseenyousef@gmail.com>
Signed-off-by: Corey Minyard <corey@minyard.net>
As documented in commit 8bd67ebb50 ("net: bridge: xmit: make sure we have
at least eth header len bytes"), it is possible by for a local user with
eBPF TC hook access to attach a tc filter which truncates the packet and
redirects to an batadv interface. But the code assumes that at least
ETH_HLEN bytes are available and thus might read outside of the available
buffer.
The batadv_interface_tx() must therefore always check itself if enough data
is available for the ethernet header and don't rely on min_header_len.
Cc: stable@vger.kernel.org
Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
In the unregister path we use __in_uprobe_trampoline check with
current->mm for the VMA lookup, which is wrong, because we are
in the tracer context, not the traced process.
Add mm_struct pointer argument to __in_uprobe_trampoline and
changing related callers to pass proper mm_struct pointer.
Fixes: ba2bfc97b4 ("uprobes/x86: Add support to optimize uprobes")
Reported-by: syzbot+61ce80689253f42e6d80@syzkaller.appspotmail.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: syzbot+61ce80689253f42e6d80@syzkaller.appspotmail.com
Link: https://patch.msgid.link/20260701111337.53943-2-jolsa@kernel.org
Add coverage for entry uprobes installed on CALL instructions while user
shadow stack is enabled. The test puts an entry uprobe on a helper whose
first instruction is a relative CALL, then verifies that the call/return
sequence completes without SIGSEGV.
This catches regressions where x86 uprobe CALL emulation updates the
regular user stack but leaves the CET shadow stack stale.
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/b957039191118c5eba97d01d80c494b859f115a6.1782777969.git.dwindsor@gmail.com
Uprobe CALL emulation updates the normal user stack, but not the CET user
shadow stack. The subsequent RET then sees a stale shadow stack entry and
raises #CP.
Update the relative CALL emulation and XOL CALL fixup paths to keep the
shadow stack in sync.
Fixes: 488af8ea71 ("x86/shstk: Wire in shadow stack interface")
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Link: https://patch.msgid.link/8b5b1c7407b98f31664ad7b6a6faf20d2d4a6cad.1782777969.git.dwindsor@gmail.com
perf_event_remove_on_exec() removes events by calling
perf_event_exit_event(). For top-level events, this removes the event from
the context with DETACH_EXIT only.
This can leave inconsistent group state when a removed event is a group
leader and the group contains siblings without remove_on_exec. If the group
was active, the surviving siblings can remain active and attached to the
removed leader's sibling list, but are no longer represented by a valid
group leader on the PMU context active lists.
A later close of the removed leader uses DETACH_GROUP and can promote the
still-active siblings from this stale group state. The next schedule-in can
then add an already-linked active_list entry again, corrupting the PMU
context active list.
With DEBUG_LIST enabled, this is caught as a list_add double-add in
merge_sched_in().
Fix this by detaching group relationships when remove_on_exec removes an
event. This preserves the existing task-exit and revoke behavior, while
ensuring surviving siblings are ungrouped before the removed event leaves
the context.
Fixes: 2e498d0a74 ("perf: Add support for event removal on exec")
Signed-off-by: Taeyang Lee <0wn@theori.io>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/ai65GgZcC0LAlWLG@Taeyangs-MacBook-Pro.local
The cited commit hardcoded the hardware address comparison len to ETH_ALEN.
This breaks IPoIB, which uses 20-byte addresses. By truncating the
memcmp, the CMA may incorrectly assume the target address is
unchanged and fails to abort the stalled connection.
Fix this by replacing ETH_ALEN with the dynamic neigh->dev->addr_len
to correctly evaluate the full address regardless of the link layer.
Fixes: 925d046e7e ("RDMA/core: Add a netevent notifier to cma")
Signed-off-by: Or Gerlitz <ogerlitz@ddn.com>
Link: https://patch.msgid.link/20260617-fix-cma-ipoib-v1-1-03f869344304@ddn.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Commit 93d7356e4b ("arm64: sysreg: Describe ID_AA64DFR2_EL1 fields")
encodes the FEAT_BWE2 value of the BWE field as '0b0002'. Binary
literals only accept the digits 0 and 1, so the intended value is 2,
i.e. 0b0010.
The macro generated by gen-sysreg.awk currently expands to
#define ID_AA64DFR2_EL1_BWE_FEAT_BWE2 UL(0b0002)
is not legal C and would fail to compile if any in-tree code referenced
it. At present no caller uses this enum value, so the kernel still
builds cleanly, but the bug is latent.
Fix the typo by using the correct binary literal 0b0010.
Cc: Bin Guo <guobin@linux.alibaba.com>
Fixes: 93d7356e4b ("arm64: sysreg: Describe ID_AA64DFR2_EL1 fields")
Signed-off-by: Jia He <justin.he@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Oliver Upton <oupton@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
During a page table walk for binding, xe_pt_stage_bind() explicitly
skips initializing the xe_res_cursor for purged BOs, treating them
similarly to NULL VMAs by only setting the cursor size.
However, xe_pt_hugepte_possible() and xe_pt_scan_64K() did not check
if the BO was purged before attempting to walk the cursor using
xe_res_dma() and xe_res_next(). Because the cursor was left
uninitialized for purged BOs, this falls through and triggers
warnings like:
WARNING: drivers/gpu/drm/xe/xe_res_cursor.h:274 at xe_res_next
Fix this by explicitly checking if the BO is purged in both
xe_pt_hugepte_possible() and xe_pt_scan_64K(), returning early just
as we do for NULL VMAs, avoiding the invalid cursor accesses entirely.
As a precaution, also zero-initialize the cursor in xe_pt_stage_bind()
to ensure we don't pass garbage data into the page table walkers
if we ever hit a similar edge case in the future.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/8418
Fixes: ad9843aac9 ("drm/xe/madvise: Implement purgeable buffer object support")
Assisted-by: Copilot:gemini-3.1-pro-preview
Reported-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Arvind Yadav <arvind.yadav@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Tested-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Link: https://patch.msgid.link/20260625152054.450125-8-matthew.auld@intel.com
(cherry picked from commit 4c7b9c6ece)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
When a buffer object is purged, its ttm.resource is set to NULL via the
TTM pipeline gutting flow. However, the BO remains in the client's
object list until userspace explicitly closes the GEM handle. If memory
stats are queried during this time, accessing bo->ttm.resource->mem_type
will result in a NULL pointer dereference.
Fix this by safely skipping purged BOs in bo_meminfo, as they no longer
consume any memory.
User is getting NPD on device resume, and possible theory is that in
bo_move(), if we need to evict something to SYSTEM to save the CCS state,
but the BO is marked as dontneed, this won't trigger a move but will
nuke the pages, leaving us with a NULL bo resource. And the meminfo()
doesn't look ready to handle a NULL resource.
v2 (Sashiko):
- There could potentially be other cases where we might end up with a
NULL resource, so make this a general NULL check for now.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/8419
Fixes: ad9843aac9 ("drm/xe/madvise: Implement purgeable buffer object support")
Assisted-by: Copilot:gemini-3.1-pro-preview
Reported-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Arvind Yadav <arvind.yadav@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Tested-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Link: https://patch.msgid.link/20260625152054.450125-6-matthew.auld@intel.com
(cherry picked from commit c9a8e7daa0)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Currently defined VF/PF relay actions use regular REQUEST messages
only and the PF shouldn't attempt to handle FAST_REQUEST nor EVENT
messages as this would result in breaking the VFPF ABI protocol
and also might trigger an assert on the PF side.
Fixes: 98e6280592 ("drm/xe/pf: Add SR-IOV GuC Relay PF services")
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260527183735.22616-1-michal.wajdeczko@intel.com
(cherry picked from commit 1714d360fc)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
The error path in hw_engine_init() explicitly frees a BO allocated
with xe_managed_bo_create_pin_map() via xe_bo_unpin_map_no_vm().
Since the managed BO already has a devm cleanup action registered,
this causes a double-free when devm unwinds during probe failure.
Remove the explicit free and let devm handle it, consistent with
all other xe_managed_bo_create_pin_map() callers.
Fixes: 0e1a47fcab ("drm/xe: Add a helper for DRM device-lifetime BO create")
Assisted-by: Claude:claude-opus-4.6
Reviewed-by: Zongyao Bai <zongyao.bai@intel.com>
Link: https://patch.msgid.link/20260626210631.3887291-1-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
(cherry picked from commit e459a3bdeb)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
The local "finish" pointer in xe_vma_userptr_force_invalidate() is
unconditionally written before each read, so the static storage class
serves no purpose. Worse, it makes the variable a process-wide shared
slot: the function's per-VM asserts do not exclude concurrent callers
on different VMs, so two such callers can race on the slot and take
the wrong if (finish) branch.
The function is gated by CONFIG_DRM_XE_USERPTR_INVAL_INJECT
(developer/test option, default n), so production builds are
unaffected.
Drop the static.
Fixes: 18c4e53695 ("drm/xe/userptr: Convert invalidation to two-pass MMU notifier")
Assisted-by: Claude:claude-opus-4.7
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Zongyao Bai <zongyao.bai@intel.com>
Link: https://patch.msgid.link/20260625224452.3243231-1-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
(cherry picked from commit ed382e3b07)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
When CONFIG_DRM_XE_USERPTR_INVAL_INJECT=y, xe_pt_svm_userptr_pre_commit()
runs vma_check_userptr() with the svm notifier_lock taken for read. The
test injection causes vma_check_userptr() to call
xe_vma_userptr_force_invalidate(), which feeds into
xe_vma_userptr_do_inval() with drm_gpusvm_ctx.in_notifier=true. That
flag tells drm_gpusvm_unmap_pages() the caller already holds
notifier_lock for write and only asserts the mode. Because the caller
actually holds it for read, the assertion fires:
WARNING: drivers/gpu/drm/drm_gpusvm.c:1669 at \
drm_gpusvm_unmap_pages+0xd4/0x130 [drm_gpusvm_helper]
Call Trace:
xe_vma_userptr_do_inval+0x40d/0xfd0 [xe]
xe_vma_userptr_invalidate_pass1+0x3e6/0x8d0 [xe]
xe_vma_userptr_force_invalidate+0xde/0x290 [xe]
vma_check_userptr.constprop.0+0x1c6/0x220 [xe]
xe_pt_svm_userptr_pre_commit+0x6a3/0xc60 [xe]
...
xe_vm_bind_ioctl+0x3a0a/0x4480 [xe]
Acquire notifier_lock for write in pre-commit when the inject Kconfig
is enabled, via new helpers xe_pt_svm_userptr_notifier_lock()/_unlock().
Rename xe_svm_assert_held_read() to
xe_svm_assert_held_read_or_inject_write() so it asserts the correct
mode under each build configuration. Production builds
(CONFIG_DRM_XE_USERPTR_INVAL_INJECT=n) keep the existing read-mode
behavior bit-for-bit.
Fixes: 9e97874148 ("drm/xe/userptr: replace xe_hmm with gpusvm")
Assisted-by: Claude:claude-opus-4.7
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Zongyao Bai <zongyao.bai@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260625215615.3016892-1-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
(cherry picked from commit 80ccbd97ff)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Currently, xe_display_bo_framebuffer_init() unconditionally attempts to
apply XE_BO_FLAG_FORCE_WC to the buffer and rejects the FB creation with
-EINVAL if the BO is already VM_BINDed.
However, for imported dma-bufs (ttm_bo_type_sg), this check doesn't seem
to make much sense since CPU caching policy is entirely controlled by
the exporter. Plus there is no place to set this flag, in the first
place. Also this is not rejected if not yet vm_binded, but that seems
arbitrary since setting or not setting FORCE_WC should a noop either
way, at this stage, and whether it is currently VM_BINDed makes no
difference.
Currently if we run an app and offload rendering to an external dGPU,
like NV or another xe device, the dma-buf passed back to the compositor
(igpu) will be an actual external import from xe pov, and it will be
missing FORCE_WC, and if the compositor side did a VM_BIND before
turning into it into an fb the whole thing gets rejected.
So it looks like we either need to reject outright, no matter what, or
this usecase is valid and we need to loosen the restriction for sg
buffers. Proposing here to loosen the restriction.
Assisted-by: Gemini:gemini-3.1-pro-preview
Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/7919
Fixes: 44e694958b ("drm/xe/display: Implement display support")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Maarten Lankhorst <dev@lankhorst.se>
Cc: <stable@vger.kernel.org> # v6.12+
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Link: https://patch.msgid.link/20260612170501.550816-2-matthew.auld@intel.com
(cherry picked from commit 3e493f88c8)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Non-migratable faults that require devmem incorrectly jump to the 'out'
label, which squashes the error code intended to be returned to the
upper layers. Fix this by returning -EACCES instead.
Reported-by: Sashiko <sashiko-bot@kernel.org>
Fixes: 4208fac3dc ("drm/xe: Add more SVM GT stats")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Link: https://patch.msgid.link/20260617135101.1245574-1-matthew.brost@intel.com
(cherry picked from commit c4508edb2c)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Since multiple OA streams might be open in parallel on a gt, ensure that
proper locking is in place. Also ensure that OA registers are whitelisted
when the first OA stream is open and de-whitelisted after the last OA
stream is closed.
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-10-ashutosh.dixit@intel.com
(cherry picked from commit 645f1a2589)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Whitelist OA registers on stream open and de-whitelist on stream
close/release. Whitelisting is only done when 'stream->sample' is
true. 'stream->sample' is only true when (a) xe_observation_paranoid is set
to false by system admin, or (b) the process is perfmon_capable(). This
therefore enforces the OA register whitelisting security requirements.
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-9-ashutosh.dixit@intel.com
(cherry picked from commit f8e6874f46)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Whitelist or de-whitelist OA registers for all hwe's on the gt on which the
OA stream is opened. This simplifies the case where an oa unit has 0
attached hwe's (but which monitors OA events on the associated GT).
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-8-ashutosh.dixit@intel.com
(cherry picked from commit 6f73bf8fff)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Whitelist or de-whitelist OA registers by setting or resetting the 'deny'
bit in OA nonpriv registers and writing new register values to HW.
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-7-ashutosh.dixit@intel.com
(cherry picked from commit aeaa7d2bb0)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Now we can save OA whitelisting nonpriv registers to register save/restore
lists. OA nonpriv registers are saved to both hwe->oa_sr as well as
hwe->reg_sr.
During probe, resume and gt-reset flows KMD will apply hwe->reg_sr,
ensuring OA registers are de-whitelisted after these events. For
engine-reset, hwe->reg_sr is registered with GuC and GuC will apply these
registers, ensuring OA registers are de-whitelisted after engine resets.
hwe->oa_sr is used for whitelisting or de-whitelisting OA registers during
OA operation, by toggling the 'deny' bit on oa stream open/close.
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-6-ashutosh.dixit@intel.com
(cherry picked from commit 3a3c3e56db)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
In order to dynamically whitelist/dewhitelist OA registers on OA stream
open/close, we need to keep track of nonpriv slots occupied by non-OA
register whitelists.
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-4-ashutosh.dixit@intel.com
(cherry picked from commit 15739920b7)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
OA registers are dynamically whitelisted (and again dewhitelisted) on OA
stream open/close. Maintaining OA whitelists separately from non-OA
register whitlists simplifies this management of OA register
whitelisting/dewhitelisting.
Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-3-ashutosh.dixit@intel.com
(cherry picked from commit c478244a9e)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Breno Leitao says:
====================
net: convert UDP getsockopt to sockopt_t
The leaf proto_ops getsockopt callbacks have been moving to the new
getsockopt_iter()/sockopt_t interface.
I was trying to get SMC into getsockop and retire .getsockopt, but,
I found the best approach is to keep converting other protocols.
This series starts the same conversion one layer down, at the struct proto
getsockopt path, beginning with UDP.
Example of the current code.
static int udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level == SOL_UDP)
return udp_lib_getsockopt(sk, level, optname, optval, optlen);
return ip_getsockopt(sk, level, optname, optval, optlen);
}
We want udp_getsockopt to go to .getsockopt_iter, and there are two
approaches in this case:
1) Create a patchset that moves both of them to getsockopt_iter, which
is will be a huge change (ip_getsockopt() is used in many places)
2) Break this down, and transform from bottoms up. First
udp_lib_getsockopt() up to the point we can easily convert
others, such as ip_getsockopt().
I am taking the approach 2), so, the intermediate code will be something
like:
static int udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
sockopt_t opt;
int err;
if (level != SOL_UDP)
return ip_getsockopt(sk, level, optname, optval, optlen);
// Convert optlen/optval in sockopt // (first patch)
err = udp_lib_getsockopt(sk, level, optname, &opt);
}
The work is bottom-up and mergeable in small steps: a protocol's inner
getsockopt helper is switched to sockopt_t behind its existing thin
__user wrapper, one patch at a time.
Once every inner helper speaks sockopt_t, a later series flips the shared
struct proto.getsockopt and inet_connection_sock_af_ops.getsockopt signatures
and drops the transitional wrappers.
Signed-off-by: Breno Leitao <leitao@debian.org>
====================
Link: https://patch.msgid.link/20260630-getsockopt_phase2-v2-0-193335f3d4d1@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Exercise the raw getsockopt path now backed by sockopt_t. ICMP_FILTER
returns a fixed-size struct and, unlike the int/u64 options already
covered, clamps the length down to the user buffer on a short read
instead of failing, so check that semantic explicitly along with the
exact and oversized cases, the -EOPNOTSUPP path on a non-ICMP raw
socket, and an unknown optname.
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260630-getsockopt_phase2-v2-4-193335f3d4d1@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Continue converting the proto-layer getsockopt callbacks to the sockopt_t
interface, switching do_raw_getsockopt() and its raw_geticmpfilter()
helper to take a sockopt_t.
The thin raw_getsockopt() wrapper keeps its __user signature for now: it
builds a user-backed sockopt_t with sockopt_init_user(), calls the helper,
and writes the returned length back to optlen. The helper uses
copy_to_iter() instead of copy_to_user(). No functional change.
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260630-getsockopt_phase2-v2-3-193335f3d4d1@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In preparation for converting the proto-layer getsockopt callbacks to the
sockopt_t interface, switch udp_lib_getsockopt() to take a sockopt_t.
The thin udp_getsockopt()/udpv6_getsockopt() wrappers keep their __user
signature for now: they build a user-backed sockopt_t with
sockopt_init_user(), call the helper, and write the returned length back
to optlen. The helper uses copy_to_iter() instead of copy_to_user().
No functional change.
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260630-getsockopt_phase2-v2-2-193335f3d4d1@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add a helper that initializes a user-backed sockopt_t from the (optval,
optlen) __user pair passed to a getsockopt() callback.
It is used by transitional __user getsockopt wrappers while the
proto-layer getsockopt callbacks are converted to take a sockopt_t, and
is removed once the conversion is complete.
The goal is to help to convert leafs. Example:
sock_common_getsockopt(... char __user *optval, int __user *optlen)
→ udp_getsockopt(sk, level, optname, optval__user, optlen__user)
→ udp_lib_getsockopt(sk, level, optname, &opt) /* needs a sockopt_t */
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260630-getsockopt_phase2-v2-1-193335f3d4d1@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
