This reverts commit f5b1819193667bf62c3c99d3921b9429997a14b2.
As the original commit (c9b1150a68d9 ("drm/atomic-helper: Re-order
bridge chain pre-enable and post-disable")) causing the issue has been
reverted, let's revert the fix for mediatek.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Cc: stable@vger.kernel.org # v6.17+
Fixes: c9b1150a68d9 ("drm/atomic-helper: Re-order bridge chain pre-enable and post-disable")
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Tested-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20251205-drm-seq-fix-v1-2-fda68fa1b3de@ideasonboard.com
This reverts commit c9b1150a68d9362a0827609fc0dc1664c0d8bfe1.
Changing the enable/disable sequence has caused regressions on multiple
platforms: R-Car, MCDE, Rockchip. A series (see link below) was sent to
fix these, but it was decided that it's better to revert the original
patch and change the enable/disable sequence only in the tidss driver.
Reverting this commit breaks tidss's DSI and OLDI outputs, which will be
fixed in the following commits.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://lore.kernel.org/all/20251202-mcde-drm-regression-thirdfix-v6-0-f1bffd4ec0fa%40kernel.org/
Fixes: c9b1150a68d9 ("drm/atomic-helper: Re-order bridge chain pre-enable and post-disable")
Cc: stable@vger.kernel.org # v6.17+
Reviewed-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Tested-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20251205-drm-seq-fix-v1-1-fda68fa1b3de@ideasonboard.com
A number of small updates:
- skip building BPF skeletons if libopenssl is missing
- a couple of test updates
- handle error cases of filename__read_build_id()
- support NVIDIA Olympus for ARM SPE profiling
- update tool headers to sync with the kernel
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-fixes-for-v6.19-2026-01-02' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tool fixes and from Namhyung Kim:
- skip building BPF skeletons if libopenssl is missing
- a couple of test updates
- handle error cases of filename__read_build_id()
- support NVIDIA Olympus for ARM SPE profiling
- update tool headers to sync with the kernel
* tag 'perf-tools-fixes-for-v6.19-2026-01-02' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
tools build: Fix the common set of features test wrt libopenssl
tools headers: Sync syscall table with kernel sources
tools headers: Sync linux/socket.h with kernel sources
tools headers: Sync linux/gfp_types.h with kernel sources
tools headers: Sync arm64 headers with kernel sources
tools headers: Sync x86 headers with kernel sources
tools headers: Sync UAPI sound/asound.h with kernel sources
tools headers: Sync UAPI linux/mount.h with kernel sources
tools headers: Sync UAPI linux/fs.h with kernel sources
tools headers: Sync UAPI linux/fcntl.h with kernel sources
tools headers: Sync UAPI KVM headers with kernel sources
tools headers: Sync UAPI drm/drm.h with kernel sources
perf arm-spe: Add NVIDIA Olympus to neoverse list
tools headers arm64: Add NVIDIA Olympus part
perf tests top: Make the test exclusive
perf tests kvm: Avoid leaving perf.data.guest file around
perf symbol: Fix ENOENT case for filename__read_build_id
perf tools: Disable BPF skeleton if no libopenssl found
tools/build: Add a feature test for libopenssl
In unittest_data_add(), if of_resolve_phandles() fails, the allocated
unittest_data is not freed, leading to a memory leak.
Fix this by using scope-based cleanup helper __free(kfree) for automatic
resource cleanup. This ensures unittest_data is automatically freed when
it goes out of scope in error paths.
For the success path, use retain_and_null_ptr() to transfer ownership
of the memory to the device tree and prevent double freeing.
Fixes: 2eb46da2a760 ("of/selftest: Use the resolver to fixup phandles")
Suggested-by: Rob Herring <robh@kernel.org>
Co-developed-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Link: https://patch.msgid.link/20251231114915.234638-1-zilin@seu.edu.cn
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Fix a recent regression that affects system suspend testing at
the "core" level (Rafael Wysocki)
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Merge tag 'pm-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix a recent regression that affects system suspend testing
at the 'core' level (Rafael Wysocki)"
* tag 'pm-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: sleep: Fix suspend_test() at the TEST_CORE level
Fix the kunit_run_irq_test() function (which I recently added for the
CRC and crypto tests) to be less timing-dependent. This fixes flakiness
in the polyval kunit test suite.
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Merge tag 'libcrypto-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library fix from Eric Biggers:
"Fix the kunit_run_irq_test() function (which I recently added for the
CRC and crypto tests) to be less timing-dependent.
This fixes flakiness in the polyval kunit test suite"
* tag 'libcrypto-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
kunit: Enforce task execution in {soft,hard}irq contexts
- Fix several syzkaller found bugs:
* Poor parsing of the RDMA_NL_LS_OP_IP_RESOLVE netlink
* GID entry refcount leaking when CM destruction races with multicast
establishment
* Missing refcount put in ib_del_sub_device_and_put()
- Fixup recently introduced uABI padding for 32 bit consistency
- Avoid user triggered math overflow in MANA and AFA
- Reading invalid netdev data during an event
- kdoc fixes
- Fix never-working gid copying in ib_get_gids_from_rdma_hdr
- Typo in bnxt when validating the BAR
- bnxt mis-parsed IB_SEND_IP_CSUM so it didn't work always
- bnxt out of bounds access in bnxt related to the counters on new devices
- Allocate the bnxt PDE table with the right sizing
- Use dma_free_coherent() correctly in bnxt
- Allow rxe to be unloadable when CONFIG_PROVE_LOCKING by adjusting the
tracking of the global sockets it uses
- Missing unlocking on error path in rxe
- Compute the right number of pages in a MR in rtrs
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
- Fix several syzkaller found bugs:
- Poor parsing of the RDMA_NL_LS_OP_IP_RESOLVE netlink
- GID entry refcount leaking when CM destruction races with
multicast establishment
- Missing refcount put in ib_del_sub_device_and_put()
- Fixup recently introduced uABI padding for 32 bit consistency
- Avoid user triggered math overflow in MANA and AFA
- Reading invalid netdev data during an event
- kdoc fixes
- Fix never-working gid copying in ib_get_gids_from_rdma_hdr
- Typo in bnxt when validating the BAR
- bnxt mis-parsed IB_SEND_IP_CSUM so it didn't work always
- bnxt out of bounds access in bnxt related to the counters on new
devices
- Allocate the bnxt PDE table with the right sizing
- Use dma_free_coherent() correctly in bnxt
- Allow rxe to be unloadable when CONFIG_PROVE_LOCKING by adjusting the
tracking of the global sockets it uses
- Missing unlocking on error path in rxe
- Compute the right number of pages in a MR in rtrs
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/bnxt_re: fix dma_free_coherent() pointer
RDMA/rtrs: Fix clt_path::max_pages_per_mr calculation
IB/rxe: Fix missing umem_odp->umem_mutex unlock on error path
RDMA/bnxt_re: Fix to use correct page size for PDE table
RDMA/bnxt_re: Fix OOB write in bnxt_re_copy_err_stats()
RDMA/bnxt_re: Fix IB_SEND_IP_CSUM handling in post_send
RDMA/core: always drop device refcount in ib_del_sub_device_and_put()
RDMA/rxe: let rxe_reclassify_recv_socket() call sk_owner_put()
RDMA/bnxt_re: Fix incorrect BAR check in bnxt_qplib_map_creq_db()
RDMA/core: Fix logic error in ib_get_gids_from_rdma_hdr()
RDMA/efa: Remove possible negative shift
RTRS/rtrs: clean up rtrs headers kernel-doc
RDMA/irdma: avoid invalid read in irdma_net_event
RDMA/mana_ib: check cqe length for kernel CQs
RDMA/irdma: Fix irdma_alloc_ucontext_resp padding
RDMA/ucma: Fix rdma_ucm_query_ib_service_resp struct padding
RDMA/cm: Fix leaking the multicast GID table reference
RDMA/core: Check for the presence of LS_NLA_TYPE_DGID correctly
-- Fix for build failures in tests that use an empty FIXTURE() seen in
Android's build environment, which uses -D_FORTIFY_SOURCE=3), a build
failure occurs in tests that use an empty FIXTURE().
-- Fix func_traceonoff_triggers.tc sometimes failures on Kunpeng-920 board
resulting from including transient trace file name in checksum compare.
-- Fix to remove available_events requirement from toplevel-enable for
instance as it isn't a valid requirement for this test.
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Merge tag 'linux_kselftest-fixes-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
- Fix for build failures in tests that use an empty FIXTURE() seen in
Android's build environment, which uses -D_FORTIFY_SOURCE=3, a build
failure occurs in tests that use an empty FIXTURE()
- Fix func_traceonoff_triggers.tc sometimes failures on Kunpeng-920
board resulting from including transient trace file name in checksum
compare
- Fix to remove available_events requirement from toplevel-enable for
instance as it isn't a valid requirement for this test
* tag 'linux_kselftest-fixes-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kselftest/harness: Use helper to avoid zero-size memset warning
selftests/ftrace: Test toplevel-enable for instance
selftests/ftrace: traceonoff_triggers: strip off names
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Merge tag 'block-6.19-20260102' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Scan partition tables asynchronously for ublk, similarly to how nvme
does it. This avoids potential deadlocks, which is why nvme does it
that way too. Includes a set of selftests as well.
- MD pull request via Yu:
- Fix null-pointer dereference in raid5 sysfs group_thread_cnt
store (Tuo Li)
- Fix possible mempool corruption during raid1 raid_disks update
via sysfs (FengWei Shih)
- Fix logical_block_size configuration being overwritten during
super_1_validate() (Li Nan)
- Fix forward incompatibility with configurable logical block size:
arrays assembled on new kernels could not be assembled on older
kernels (v6.18 and before) due to non-zero reserved pad rejection
(Li Nan)
- Fix static checker warning about iterator not incremented (Li Nan)
- Skip CPU offlining notifications on unmapped hardware queues
- bfq-iosched block stats fix
- Fix outdated comment in bfq-iosched
* tag 'block-6.19-20260102' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
block, bfq: update outdated comment
blk-mq: skip CPU offline notify on unmapped hctx
selftests/ublk: fix Makefile to rebuild on header changes
selftests/ublk: add test for async partition scan
ublk: scan partition in async way
block,bfq: fix aux stat accumulation destination
md: Fix forward incompatibility from configurable logical block size
md: Fix logical_block_size configuration being overwritten
md: suspend array while updating raid_disks via sysfs
md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt()
md: Fix static checker warning in analyze_sbs
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Merge tag 'io_uring-6.19-20260102' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Removed dead argument length for io_uring_validate_mmap_request()
- Use GFP_NOWAIT for overflow CQEs on legacy ring setups rather than
GFP_ATOMIC, which makes it play nicer with memcg limits
- Fix a potential circular locking issue with tctx node removal and
exec based cancelations
* tag 'io_uring-6.19-20260102' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/memmap: drop unused sz param in io_uring_validate_mmap_request()
io_uring/tctx: add separate lock for list of tctx's in ctx
io_uring: use GFP_NOWAIT for overflow CQEs on legacy rings
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Merge tag 'loongarch-fixes-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Complete CPUCFG registers definition, set correct protection_map[] for
VM_NONE/VM_SHARED, fix some bugs in the orc stack unwinder, ftrace and
BPF JIT"
* tag 'loongarch-fixes-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
samples/ftrace: Adjust LoongArch register restore order in direct calls
LoongArch: BPF: Enhance the bpf_arch_text_poke() function
LoongArch: BPF: Enable trampoline-based tracing for module functions
LoongArch: BPF: Adjust the jump offset of tail calls
LoongArch: BPF: Save return address register ra to t0 before trampoline
LoongArch: BPF: Zero-extend bpf_tail_call() index
LoongArch: BPF: Sign extend kfunc call arguments
LoongArch: Refactor register restoration in ftrace_common_return
LoongArch: Enable exception fixup for specific ADE subcode
LoongArch: Remove unnecessary checks for ORC unwinder
LoongArch: Remove is_entry_func() and kernel_entry_end
LoongArch: Use UNWIND_HINT_END_OF_STACK for entry points
LoongArch: Set correct protection_map[] for VM_NONE/VM_SHARED
LoongArch: Complete CPUCFG registers definition
When the NFSD instance doesn't to startup, the net ref data memory is
not properly reclaimed, which triggers the memory leak issue reported
by syzbot [1].
To avoid the problem reported in [1], the net ref data memory reclamation
action is moved outside of nfsd_net_up when the net is shutdown.
[1]
unreferenced object 0xffff88812a39dfc0 (size 64):
backtrace (crc a2262fc6):
percpu_ref_init+0x94/0x1e0 lib/percpu-refcount.c:76
nfsd_create_serv+0xbe/0x260 fs/nfsd/nfssvc.c:605
nfsd_nl_listener_set_doit+0x62/0xb00 fs/nfsd/nfsctl.c:1882
genl_family_rcv_msg_doit+0x11e/0x190 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x2fd/0x440 net/netlink/genetlink.c:1210
BUG: memory leak
Reported-by: syzbot+6ee3b889bdeada0a6226@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=6ee3b889bdeada0a6226
Fixes: 39972494e318 ("nfsd: update percpu_ref to manage references on nfsd_net")
Cc: stable@vger.kernel.org
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
If we are trying to unlock the filesystem via an administrative
interface and nfsd isn't running, it crashes the server. This
happens currently because nfsd4_revoke_states() access state
structures (eg., conf_id_hashtbl) that has been freed as a part
of the server shutdown.
[ 59.465072] Call trace:
[ 59.465308] nfsd4_revoke_states+0x1b4/0x898 [nfsd] (P)
[ 59.465830] write_unlock_fs+0x258/0x440 [nfsd]
[ 59.466278] nfsctl_transaction_write+0xb0/0x120 [nfsd]
[ 59.466780] vfs_write+0x1f0/0x938
[ 59.467088] ksys_write+0xfc/0x1f8
[ 59.467395] __arm64_sys_write+0x74/0xb8
[ 59.467746] invoke_syscall.constprop.0+0xdc/0x1e8
[ 59.468177] do_el0_svc+0x154/0x1d8
[ 59.468489] el0_svc+0x40/0xe0
[ 59.468767] el0t_64_sync_handler+0xa0/0xe8
[ 59.469138] el0t_64_sync+0x1ac/0x1b0
Ensure this can't happen by taking the nfsd_mutex and checking that
the server is still up, and then holding the mutex across the call to
nfsd4_revoke_states().
Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Fixes: 1ac3629bf0125 ("nfsd: prepare for supporting admin-revocation of state")
Cc: stable@vger.kernel.org
Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
The loop in nfsd4_revoke_states() stops one too early because
the end value given is CLIENT_HASH_MASK where it should be
CLIENT_HASH_SIZE.
This means that an admin request to drop all locks for a filesystem will
miss locks held by clients which hash to the maximum possible hash value.
Fixes: 1ac3629bf012 ("nfsd: prepare for supporting admin-revocation of state")
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Writing to v4_end_grace can race with server shutdown and result in
memory being accessed after it was freed - reclaim_str_hashtbl in
particularly.
We cannot hold nfsd_mutex across the nfsd4_end_grace() call as that is
held while client_tracking_op->init() is called and that can wait for
an upcall to nfsdcltrack which can write to v4_end_grace, resulting in a
deadlock.
nfsd4_end_grace() is also called by the landromat work queue and this
doesn't require locking as server shutdown will stop the work and wait
for it before freeing anything that nfsd4_end_grace() might access.
However, we must be sure that writing to v4_end_grace doesn't restart
the work item after shutdown has already waited for it. For this we
add a new flag protected with nn->client_lock. It is set only while it
is safe to make client tracking calls, and v4_end_grace only schedules
work while the flag is set with the spinlock held.
So this patch adds a nfsd_net field "client_tracking_active" which is
set as described. Another field "grace_end_forced", is set when
v4_end_grace is written. After this is set, and providing
client_tracking_active is set, the laundromat is scheduled.
This "grace_end_forced" field bypasses other checks for whether the
grace period has finished.
This resolves a race which can result in use-after-free.
Reported-by: Li Lingfeng <lilingfeng3@huawei.com>
Closes: https://lore.kernel.org/linux-nfs/20250623030015.2353515-1-neil@brown.name/T/#t
Fixes: 7f5ef2e900d9 ("nfsd: add a v4_end_grace file to /proc/fs/nfsd")
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neil@brown.name>
Tested-by: Li Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Commit abc02e5602f7 ("NFSD: Support write delegations in LAYOUTGET")
added NFSD_MAY_OWNER_OVERRIDE to the access flags passed from
nfsd4_layoutget() to fh_verify(). This causes LAYOUTGET to fail for
executable-only files, and causes xfstests generic/126 to fail on
pNFS SCSI.
To allow read access to executable-only files, what we really want is:
1. The "permissions" portion of the access flags (the lower 6 bits)
must be exactly NFSD_MAY_READ
2. The "hints" portion of the access flags (the upper 26 bits) can
contain any combination of NFSD_MAY_OWNER_OVERRIDE and
NFSD_MAY_READ_IF_EXEC
Fixes: abc02e5602f7 ("NFSD: Support write delegations in LAYOUTGET")
Cc: stable@vger.kernel.org # v6.6+
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
I haven't found an NFSERR_EAGAIN in RFCs 1094, 1813, 7530, or 8881.
None of these RFCs have an NFS status code that match the numeric
value "11".
Based on the meaning of the EAGAIN errno, I presume the use of this
status in NFSD means NFS4ERR_DELAY. So replace the one usage of
nfserr_eagain, and remove it from NFSD's NFS status conversion
tables.
As far as I can tell, NFSERR_EAGAIN has existed since the pre-git
era, but was not actually used by any code until commit f4e44b393389
("NFSD: delay unmount source's export after inter-server copy
completed."), at which time it become possible for NFSD to return
a status code of 11 (which is not valid NFS protocol).
Fixes: f4e44b393389 ("NFSD: delay unmount source's export after inter-server copy completed.")
Cc: stable@vger.kernel.org
Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
The `pci` module is conditional on CONFIG_PCI. When it's disabled, the
intra-doc link to `pci::Device` causes rustdoc warnings:
warning: unresolved link to `kernel::pci::Device`
--> rust/kernel/device.rs:163:22
|
163 | /// [`pci::Device`]: kernel::pci::Device
| ^^^^^^^^^^^^^^^^^^^ no item named `pci` in module `kernel`
|
= note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
Fix this by making the documentation conditional on CONFIG_PCI.
Fixes: d6e26c1ae4a6 ("device: rust: expand documentation for Device")
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://patch.msgid.link/20251231045728.1912024-2-fujita.tomonori@gmail.com
[ Keep the "such as" part indicating a list of examples; fix typos in
commit message. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The `pci` module is conditional on CONFIG_PCI. When it's disabled, the
intra-doc link to `pci::Device` causes rustdoc warnings:
warning: unresolved link to `::kernel::pci::Device`
--> rust/kernel/dma.rs:30:70
|
30 | /// where the underlying bus is DMA capable, such as [`pci::Device`](::kernel::pci::Device) or
| ^^^^^^^^^^^^^^^^^^^^^ no item named `pci` in module `kernel`
Fix this by making the documentation conditional on CONFIG_PCI.
Fixes: d06d5f66f549 ("rust: dma: implement `dma::Device` trait")
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://patch.msgid.link/20251231045728.1912024-1-fujita.tomonori@gmail.com
[ Keep the "such as" part indicating a list of examples; fix typos in
commit message. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
shmem:
- docs and MODULE_LICENSE fix
xe:
- Ensure svm device memory is idle before migration completes
- Fix a SVM debug printout
- Use READ_ONCE() / WRITE_ONCE() for g2h_fence
i915:
- Fix eb_lookup_vmas() failure path
nouveau:
- fix prepare_fb warnings
imagination:
- prevent export of protected objects
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Merge tag 'drm-fixes-2026-01-02' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Happy New Year, jetlagged fixes from me, still pretty quiet, xe is
most of this, with i915/nouveau/imagination fixes and some shmem
cleanups.
shmem:
- docs and MODULE_LICENSE fix
xe:
- Ensure svm device memory is idle before migration completes
- Fix a SVM debug printout
- Use READ_ONCE() / WRITE_ONCE() for g2h_fence
i915:
- Fix eb_lookup_vmas() failure path
nouveau:
- fix prepare_fb warnings
imagination:
- prevent export of protected objects"
* tag 'drm-fixes-2026-01-02' of https://gitlab.freedesktop.org/drm/kernel:
drm/i915/gem: Zero-initialize the eb.vma array in i915_gem_do_execbuffer
drm/xe/guc: READ/WRITE_ONCE g2h_fence->done
drm/pagemap, drm/xe: Ensure that the devmem allocation is idle before use
drm/xe/svm: Fix a debug printout
drm/gem-shmem: Fix the MODULE_LICENSE() string
drm/gem-shmem: Fix typos in documentation
drm/nouveau/dispnv50: Don't call drm_atomic_get_crtc_state() in prepare_fb
drm/imagination: Disallow exporting of PM/FW protected objects
HP Laptop 15s-eq1xxx with ALC236 codec does not enable the
mute LED automatically. This patch adds a quirk entry for
subsystem ID 0x8706 using the ALC236_FIXUP_HP_MUTE_LED_COEFBIT2
fixup, enabling correct mute LED behavior.
Signed-off-by: Ruslan Krupitsa <krupitsarus@outlook.com>
Link: https://patch.msgid.link/AS8P194MB112895B8EC2D87D53A876085BBBAA@AS8P194MB1128.EURP194.PROD.OUTLOOK.COM
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The reference obtained by calling usb_get_dev() is not released in the
gpio_mpsse_probe() error paths. Fix that by using device managed helper
functions. Also remove the usb_put_dev() call in the disconnect function
since now it will be released automatically.
Cc: stable@vger.kernel.org
Fixes: c46a74ff05c0 ("gpio: add support for FTDI's MPSSE as GPIO")
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Link: https://lore.kernel.org/r/20251226060414.20785-1-nihaal@cse.iitm.ac.in
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Currently last_gc is being updated everytime a new connection is
tracked, that means that it is updated even if a GC wasn't performed.
With a sufficiently high packet rate, it is possible to always bypass
the GC, causing the list to grow infinitely.
Update the last_gc value only when a GC has been actually performed.
Fixes: d265929930e2 ("netfilter: nf_conncount: reduce unnecessary GC")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
In nf_tables_newrule(), if nft_use_inc() fails, the function jumps to
the err_release_rule label without freeing the allocated flow, leading
to a memory leak.
Fix this by adding a new label err_destroy_flow and jumping to it when
nft_use_inc() fails. This ensures that the flow is properly released
in this error case.
Fixes: 1689f25924ada ("netfilter: nf_tables: report use refcount overflow")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Florian Westphal <fw@strlen.de>
GPIO drivers with latch input support may miss short pulses on input
pins even when input latching is enabled. The generic interrupt logic in
the pca953x driver reports interrupts by comparing the current input
value against the previously sampled one and only signals an event when
a level change is observed between two reads.
For short pulses, the first edge is captured when the input register is
read, but if the signal returns to its previous level before the read,
the second edge is not observed. As a result, successive pulses can
produce identical input values at read time and no level change is
detected, causing interrupts to be missed. Below timing diagram shows
this situation where the top signal is the input pin level and the
bottom signal indicates the latched value.
─────┐ ┌──*───────────────┐ ┌──*─────────────────┐ ┌──*───
│ │ . │ │ . │ │ .
│ │ │ │ │ │ │ │ │
└──*──┘ │ └──*──┘ │ └──*──┘ │
Input │ │ │ │ │ │
▼ │ ▼ │ ▼ │
IRQ │ IRQ │ IRQ │
. . .
─────┐ .┌──────────────┐ .┌────────────────┐ .┌──
│ │ │ │ │ │
│ │ │ │ │ │
└────────*┘ └────────*┘ └────────*┘
Latched │ │ │
▼ ▼ ▼
READ 0 READ 0 READ 0
NO CHANGE NO CHANGE
PCAL variants provide an interrupt status register that records which
pins triggered an interrupt, but the status and input registers cannot
be read atomically. The interrupt status is only cleared when the input
port is read, and the input value must also be read to determine the
triggering edge. If another interrupt occurs on a different line after
the status register has been read but before the input register is
sampled, that event will not be reflected in the earlier status
snapshot, so relying solely on the interrupt status register is also
insufficient.
Support for input latching and interrupt status handling was previously
added by [1], but the interrupt status-based logic was reverted by [2]
due to these issues. This patch addresses the original problem by
combining both sources of information. Events indicated by the interrupt
status register are merged with events detected through the existing
level-change logic. As a result:
* short pulses, whose second edges are invisible, are detected via the
interrupt status register, and
* interrupts that occur between the status and input reads are still
caught by the generic level-change logic.
This significantly improves robustness on devices that signal interrupts
as short pulses, while avoiding the issues that led to the earlier
reversion. In practice, even if only the first edge of a pulse is
observable, the interrupt is reliably detected.
This fixes missed interrupts from an Ilitek touch controller with its
interrupt line connected to a PCAL6416A, where active-low pulses are
approximately 200 us long.
[1] commit 44896beae605 ("gpio: pca953x: add PCAL9535 interrupt support for Galileo Gen2")
[2] commit d6179f6c6204 ("gpio: pca953x: Improve interrupt support")
Fixes: d6179f6c6204 ("gpio: pca953x: Improve interrupt support")
Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20251217153050.142057-1-ernestvanhoecke@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
We currently support sharing GPIOs between multiple devices whose drivers
use either the GPIOLIB API *OR* the reset control API but not both at
the same time.
There's an unlikely corner-case where a reset-gpios pin can be shared by
one driver using the GPIOLIB API and a second using the reset API. This
will currently not work as the reset-gpio consumers are not described in
firmware at the time of scanning so the shared GPIO just chooses one of
the proxies created for the consumers when the reset-gpio driver performs
the lookup. This can of course conflict in the case described above.
In order to fix it: if we deal with the "reset-gpios" pin that's shared
acconding to the firmware node setup, create a proxy for each described
consumer as well as another one for the potential reset-gpio device. To
that end: rework the matching to take this into account.
Fixes: 7b78b26757e0 ("gpio: shared: handle the reset-gpios corner case")
Link: https://lore.kernel.org/r/20251222-gpio-shared-reset-gpio-proxy-v1-3-8d4bba7d8c14@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
When matching the firmware node with the potential consumer, we
currently omit the con_id string. This can lead to false positives in
the unlikely case of the consumer having been assigned more than one
shared GPIO. Check the connector ID before proceeding.
Fixes: a060b8c511ab ("gpiolib: implement low-level, shared GPIO support")
Link: https://lore.kernel.org/r/20251222-gpio-shared-reset-gpio-proxy-v1-2-8d4bba7d8c14@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
The GPIO machine lookup mechanism dates back to old ARM board files
where lookup tables would all be defined in a single place. Since then,
lookup tables have also been used to address various DT and ACPI quirks
like missing GPIOs and - as of recently - setting up shared GPIO proxy
devices.
The lookup itself stops when we find the first matching table for a
consumer and - if it doesn't contain the right entry - the lookup fails.
Since the tables can now be defined in multiple places and we can't know
how many there are, effectively limiting a consumer to only a single
lookup table is no longer viable.
Rework the code to always look through all tables matching the consumer.
Link: https://lore.kernel.org/r/20251222-gpio-shared-reset-gpio-proxy-v1-1-8d4bba7d8c14@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
The function bfq_bfqq_may_idle() was renamed as bfq_better_to_idle()
in commit 277a4a9b56cd ("block, bfq: give a better name to
bfq_bfqq_may_idle"). Update the comment accordingly.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring_validate_mmap_request() doesn't use its size_t sz argument, so
remove it.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In line with other drivers depending on REGMAP_*, select the required
symbol to prevent a linker error when building with COMPILE_TEST=y:
ld: drivers/pinctrl/pinctrl-pic64gx-gpio2.o: in function `pic64gx_gpio2_probe':
pinctrl-pic64gx-gpio2.c:315:(.text+0x198): undefined reference to `__devm_regmap_init_mmio_clk'
Fixes: 38cf9d641314 ("pinctrl: add pic64gx "gpio2" pinmux driver")
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Signed-off-by: Linus Walleij <linusw@kernel.org>
The -EEXIST error code is reserved by the module loading infrastructure
to indicate that a module is already loaded. When a module's init
function returns -EEXIST, userspace tools like kmod interpret this as
"module already loaded" and treat the operation as successful, returning
0 to the user even though the module initialization actually failed.
Replace -EEXIST with -EBUSY to ensure correct error reporting in the module
initialization path.
Affected modules:
* ebtable_broute ebtable_filter ebtable_nat arptable_filter
* ip6table_filter ip6table_mangle ip6table_nat ip6table_raw
* ip6table_security iptable_filter iptable_mangle iptable_nat
* iptable_raw iptable_security
Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
During nft_synproxy eval we are reading nf_synproxy_info struct which
can be modified on update operation concurrently. As nf_synproxy_info
struct fits in 32 bits, use READ_ONCE/WRITE_ONCE annotations.
Fixes: ee394f96ad75 ("netfilter: nft_synproxy: add synproxy stateful object support")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
without 'netfilter: nft_set_pipapo: fix range overlap detection':
reject overlapping range on add 0s [FAIL]
Returned success for add { 1.2.3.4 . 1.2.4.1-1.2.4.2 } given set:
table inet filter {
[..]
elements = { 1.2.3.4 . 1.2.4.1 counter packets 0 bytes 0,
1.2.3.0-1.2.3.4 . 1.2.4.2 counter packets 0 bytes 0 }
}
The element collides with existing ones and was not added, but kernel
returned success to userspace.
Signed-off-by: Florian Westphal <fw@strlen.de>
set->klen has to be used, not sizeof(). The latter only compares a
single register but a full check of the entire key is needed.
Example:
table ip t {
map s {
typeof iifname . ip saddr : verdict
flags interval
}
}
nft add element t s '{ "lo" . 10.0.0.0/24 : drop }' # no error, expected
nft add element t s '{ "lo" . 10.0.0.0/24 : drop }' # no error, expected
nft add element t s '{ "lo" . 10.0.0.0/8 : drop }' # bug: no error
The 3rd 'add element' should be rejected via -ENOTEMPTY, not -EEXIST,
so userspace / nft can report an error to the user.
The latter is only correct for the 2nd case (re-add of existing element).
As-is, userspace is told that the command was successful, but no elements were
added.
After this patch, 3rd command gives:
Error: Could not process rule: File exists
add element t s { "lo" . 127.0.0.0/8 . "lo" : drop }
^^^^^^^^^^^^^^^^^^^^^^^^^
Fixes: 0eb4b5ee33f2 ("netfilter: nft_set_pipapo: Separate partial and complete overlap cases on insertion")
Signed-off-by: Florian Westphal <fw@strlen.de>
Add headset mic quirk for Acer Nitro AN517-55. This laptop uses
the same audio configuration as the AN515-58 model.
Signed-off-by: Matouš Lánský <matouslansky@post.cz>
Link: https://patch.msgid.link/20251231171207.76943-1-matouslansky@post.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
drm-misc-fixes for v6.19-rc4:
- Documentation fixes and MODULE_LICENSE fix for shmem helper.
- Fix warnings in nouveau prepare_fb().
- Prevent export of protected objects in imagination driver.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/5506492b-02ca-47bc-8712-51e67f0e4b8b@linux.intel.com
An extra blank line gets printed after printing firmware version
because the build date is null terminated. Remove the "\n" from
dev_info() calls to print firmware version and build date to fix
the problem.
Reported-by: Mario Limonciello <superm1@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jump to the existing dev_put label when devm_request_irq() fails
so drm_dev_put() and of_reserved_mem_device_release() run
instead of returning early and leaking resources.
Found via static analysis and code review.
Fixes: bed41005e617 ("drm/pl111: Initial drm/kms driver for pl111")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20251211123345.2392065-1-linmq006@gmail.com
Developers run into bouncing emails from my old address,
so add it to .mailmap. Stuff in the rest of my old mail
addresses as well while we're at it.
Reported-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
