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Merge tag 'io_uring-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Remove dead struct io_buffer_list member
- Fix for incrementally consumed buffers with recvmsg multishot, which
requires a minimum value left in a buffer for any receive for the
headers. If there's still a bit of buffer left but it's smaller than
that value, then userspace will see a spurious -EFAULT returned in
the CQE
- Locking fix for the DEFER_TASKRUN retry list, which otherwise could
race with fallback cancelations. If the task is exiting with
task_work left in both the normal and retry list AND the exit cleanup
races with the task running task work, then entries could either be
doubly completed or lost
- Cap NAPI busy poll timeout to something sane, to avoid syzbot running
into excessive polling and triggering warnings around that
* tag 'io_uring-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/tw: serialize ctx->retry_llist with ->uring_lock
io_uring/napi: cap busy_poll_to 10 msec
io_uring/kbuf: support min length left for incremental buffers
io_uring/kbuf: kill dead struct io_buffer_list 'nr_entries' member
The cpu_endpoint in mcasp0 specifies the TLV320AIC3106 codec as the
bitclock and frame master, but the phandles point to the codec's port
node (codec_port) rather than its endpoint node (codec_endpoint).
audio-graph-card calls simple_util_parse_daifmt() with ep_codec set to
the endpoint node (codec_endpoint). The function resolves the
bitclock-master phandle and checks whether it equals ep_codec. Since
codec_port is the parent of codec_endpoint, not the endpoint itself, the
comparison always evaluates to false. This causes the mcasp0 CPU side to
be silently configured as bitclock and frame master instead of the codec,
which is the opposite of the intended configuration.
Fix by pointing bitclock-master and frame-master to codec_endpoint.
Fixes: e5f89dbdeb ("ARM: dts: am335x-sl50: use audio-graph-card for sound")
Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com>
Link: https://patch.msgid.link/20260325223411.123666-1-jihed.chaibi.dev@gmail.com
Signed-off-by: Kevin Hilman (TI) <khilman@baylibre.com>
There are a couple of nasty issues fixed here in the axiado and rockchip
drivers. We've also got more of the fixes from Johan here, this time
for the two Cadence drivers, plus a couple of other similar fixes from
John and Felix.
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Merge tag 'spi-fix-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"There are a couple of nasty issues fixed here in the axiado and
rockchip drivers. We've also got more of the fixes from Johan here,
this time for the two Cadence drivers, plus a couple of other similar
fixes from John and Felix"
* tag 'spi-fix-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: amlogic-spisg: initialize completion before requesting IRQ
spi: axiado: replace usleep_range() with udelay() in IRQ path
spi: cadence-quadspi: fix runtime pm and clock imbalance on unbind
spi: cadence-quadspi: fix unclocked access on unbind
spi: cadence-quadspi: fix clock imbalance on probe failure
spi: cadence-quadspi: fix runtime pm disable imbalance on probe failure
spi: cadence: fix clock imbalance on probe failure
spi: cadence: fix unclocked access on unbind
spi: rockchip: Drop unused and broken CR0 macros
spi: rockchip: Read ISR, not IMR, to detect cs-inactive IRQ
spi: rzv2h-rspi: Fix silent failure in clock setup error path
Commit 2e8a1acea8 ("arm64: signal: Improve POR_EL0 handling to
avoid uaccess failures") delayed the write to POR_EL0 in
rt_sigreturn to avoid spurious uaccess failures. This change however
relies on the poe_context frame record being present: on a system
supporting POE, calling sigreturn without a poe_context record now
results in writing arbitrary data from the kernel stack into POR_EL0.
Fix this by adding a __valid_fields member to struct
user_access_state, and zeroing the struct on allocation.
restore_poe_context() then indicates that the por_el0 field is valid
by setting the corresponding bit in __valid_fields, and
restore_user_access_state() only touches POR_EL0 if there is a valid
value to set it to. This is in line with how POR_EL0 was originally
handled; all frame records are currently optional, except
fpsimd_context.
To ensure that __valid_fields is kept in sync, fields (currently
just por_el0) are now accessed via accessors and prefixed with __ to
discourage direct access.
Fixes: 2e8a1acea8 ("arm64: signal: Improve POR_EL0 handling to avoid uaccess failures")
Cc: <stable@vger.kernel.org>
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
A fix from Arnd readding a dependency on gpiolib which was implicitly
pulled in via an OF specific route which got removed as part of a
cleanup.
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Merge tag 'regulator-fix-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"A fix from Arnd re-adding a dependency on gpiolib which was implicitly
pulled in via an OF specific route which got removed as part of a
cleanup"
* tag 'regulator-fix-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: rpi-panel-attiny: add back GPIOLIB dependency
A fix from Colin for a spelling mistake in a dev_warn() message.
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Merge tag 'regmap-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"A fix from Colin for a spelling mistake in a dev_warn() message"
* tag 'regmap-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: sdw-mbq: Fix spelling mistake "undeferable" -> "undeferrable"
and the remainder are for post-7.0 issues or aren't deemed suitable for
backporting.
There's a 2 patch DAMON series from SeongJae Park which address races
which could lead to use-after-free errors. And a 3 patch DAMON series
which avoids the possibility of presenting stale parameter values to
users.
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Merge tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM fixes from Andrew Morton:
"20 hotfixes. All are for MM (and for MMish maintainers). 9 are
cc:stable and the remainder are for post-7.0 issues or aren't deemed
suitable for backporting.
There are two DAMON series from SeongJae Park which address races
which could lead to use-after-free errors, and avoid the possibility
of presenting stale parameter values to users"
* tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: memcontrol: fix rcu unbalance in get_non_dying_memcg_end()
mm/userfaultfd: detect VMA type change after copy retry in mfill_copy_folio_retry()
MAINTAINERS: remove stale kdump project URL
mm/damon/stat: detect and use fresh enabled value
mm/damon/lru_sort: detect and use fresh enabled and kdamond_pid values
mm/damon/reclaim: detect and use fresh enabled and kdamond_pid values
selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y
mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock
mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock
MAINTAINERS: update Li Wang's email address
MAINTAINERS, mailmap: update email address for Qi Zheng
MAINTAINERS: update Liam's email address
mm/hugetlb_cma: round up per_node before logging it
MAINTAINERS: fix regex pattern in CORE MM category
mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
mm: start background writeback based on per-wb threshold for strictlimit BDIs
kho: fix error handling in kho_add_subtree()
liveupdate: fix return value on session allocation failure
mailmap: update entry for Dan Carpenter
vmalloc: fix buffer overflow in vrealloc_node_align()
Update the security_inode_listsecurity() interface to allow
use of the xattr_list_one() helper and update the hook
implementations.
Link: https://lore.kernel.org/selinux/20250424152822.2719-1-stephen.smalley.work@gmail.com
Signed-off-by: Stephen Smalley <stephen.smalley.work@gmail.com>
[PM: forward porting to bring this patch up to v7.1-rc1+]
Signed-off-by: Paul Moore <paul@paul-moore.com>
The final part of [data, end) segment may overflow into the next page of
init_pg_end[1] which is the gap page before early_init_stack[2]:
[1]
crash_arm64_v9.0.1> vtop ffffffed00601000
VIRTUAL PHYSICAL
ffffffed00601000 83401000
PAGE DIRECTORY: ffffffecffd62000
PGD: ffffffecffd62da0 => 10000000833fb003
PMD: ffffff80033fb018 => 10000000833fe003
PTE: ffffff80033fe008 => 68000083401f03
PAGE: 83401000
PTE PHYSICAL FLAGS
68000083401f03 83401000 (VALID|SHARED|AF|NG|PXN|UXN)
PAGE PHYSICAL MAPPING INDEX CNT FLAGS
fffffffec00d0040 83401000 0 0 1 4000 reserved
[2]
ffffffed002c8000 (r) __pi__data
ffffffed0054e000 (d) __pi___bss_start
ffffffed005f5000 (b) __pi_init_pg_dir
ffffffed005fe000 (b) __pi_init_pg_end
ffffffed005ff000 (B) early_init_stack
ffffffed00608000 (b) __pi__end
For 4K pages, the early kernel mapping may use 2MB block entries but the
kernel segments are only 64KB aligned. Segment boundaries that fall
within a 2MB block therefore require a PTE table so that different
attributes can be applied on either side of the boundary.
KERNEL_SEGMENT_COUNT still correctly counts the five permanent kernel
VMAs registered by declare_kernel_vmas(). However, since commit
5973a62efa ("arm64: map [_text, _stext) virtual address range
non-executable+read-only"), the early mapper also maps [_text, _stext)
separately from [_stext, _etext). This adds one more early-only split
and can require one more page-table page than the existing
EARLY_SEGMENT_EXTRA_PAGES allowance reserves.
Increase the 4K-page early mapping allowance by one page to cover that
additional split.
Fixes: 5973a62efa ("arm64: map [_text, _stext) virtual address range non-executable+read-only")
Assisted-by: TRAE:GLM-5.1
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
[catalin.marinas@arm.com: rewrote part of the commit log]
[catalin.marinas@arm.com: expanded the code comment]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Currently, if `drm_gem_object_init` fails, the object is freed without
any cleanup. Perform the cleanup in that case.
Cc: stable@vger.kernel.org
Fixes: c284d3e423 ("rust: drm: gem: Add GEM object abstraction")
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Onur Özkan <work@onurozkan.dev>
Link: https://patch.msgid.link/20260423-fix-gem-1-v1-1-e12e35f7bba9@nvidia.com
[ Move safety comment closer to unsafe block to avoid a clippy warning.
- Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
kselftest includes kernel uAPI headers with option:
-isystem $(top_srcdir)/usr/include
Include <asm/ptrace.h> in libc-gcs.c for the definition of struct
user_gcs from the uAPI headers, and remove the redundant definition in
gcs-util.h. This fixes a compilation error on systems where the
toolchain defines NT_ARM_GCS.
Fixes: a505a52b4e ("kselftest/arm64: Add a GCS test program built with the system libc")
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The Yoga Pro 9 16IMH9 (codec SSID 17aa:38d6) shares PCI audio device
subsystem ID 17aa:3811 with the Legion S7 15IMH05. The existing
SND_PCI_QUIRK entry for the Legion routes both machines to
ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS, which does not bind the TAS2781
smart amplifiers, resulting in near-silent built-in speakers.
Add an HDA_CODEC_QUIRK entry immediately before the conflicting PCI quirk
that matches the Yoga Pro 9's unique codec SSID and routes it to
ALC287_FIXUP_TAS2781_I2C. Codec quirks are evaluated after PCI quirks and
take precedence, leaving the Legion S7 15IMH05 entry unaffected.
This follows the same pattern used to disambiguate PCI SSID 17aa:3847
(shared between Yoga Pro 7 14IMH9 and Legion 7 16ACHG6), where a
HDA_CODEC_QUIRK for codec SSID 17aa:38cf resolves the conflict.
Signed-off-by: Rámon van Raaij <ramon@vanraaij.eu>
Link: https://patch.msgid.link/20260430191224.patch1-ramon@vanraaij.eu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When ublk_ch_uring_cmd_cb() runs as fallback task work (e.g., because
the submitting task is exiting), the command should not be issued as
current is a kworker, not the daemon task. This can cause io->task
to capture the wrong task in __ublk_fetch(), leading to a task
mismatch warning in ublk_uring_cmd_cancel_fn().
Check tw.cancel and return -ECANCELED instead of issuing the command
from fallback context.
Fixes: 3421c7f68b ("ublk: make sure io cmd handled in submitter task context")
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Link: https://patch.msgid.link/20260501112312.947327-1-tom.leiming@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add support for GEM buffer objects backed by shared memory.
This introduces the BoCreateArgs structure for passing creation parameters
including flags, and adds a flags field to BoData.
Co-developed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Link: https://patch.msgid.link/20260428-fw-boot-prerequisites-v1-5-c69af9abe1af@collabora.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Configure the device DMA mask during probe using the GPU's physical
address capability reported in GpuInfo. This ensures DMA allocations
use an appropriate address mask.
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Beata Michalska <beata.michalska@arm.com>
Co-developed-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Link: https://patch.msgid.link/20260428-fw-boot-prerequisites-v1-4-c69af9abe1af@collabora.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Tyr buffer objects are shmem-backed, so the driver should use
drm:💎:shmem::Object<BoData> as its GEM object type instead of the base
drm:💎:Object<BoData> type.
Switching to the shmem GEM object type matches how Tyr allocates and
manages its buffer objects, and uses the shmem-specific GEM abstraction
provided by the DRM Rust bindings.
Select RUST_DRM_GEM_SHMEM_HELPER to ensure the required helpers are
available when DRM_TYR is enabled.
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Link: https://patch.msgid.link/20260428-fw-boot-prerequisites-v1-3-c69af9abe1af@collabora.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Currently the GEM inner driver data object is called `TyrObject` which
is a fairly generic name. To make the code easier to understand,
rename `TyrObject` to `BoData` so that the name better reflects its
role.
No functional change is intended.
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Co-developed-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Link: https://patch.msgid.link/20260428-fw-boot-prerequisites-v1-2-c69af9abe1af@collabora.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Currently Tyr disables its clocks from TyrDrmDeviceData::drop(), which
causes them to be shut down before any other fields in TyrDrmDeviceData
are dropped. This prevents us from using the clocks when dropping the
other fields in TyrDrmDeviceData.
In order to better control when the clocks are dropped, move this cleanup
logic into a Drop implementation on the Clocks struct itself.
Since it serves no further purpose, remove the PinnedDrop implementation
for TyrDrmDeviceData.
Also, while here, remove the #[pin_data] annotation from both the struct
Clocks and struct Regulators since neither of these structs need this
macro to create structurally pinned fields.
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Link: https://patch.msgid.link/20260428-fw-boot-prerequisites-v1-1-c69af9abe1af@collabora.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
This adjusts the checksum, if required, after pulling the layer 2
header, either the pppoe header or the inner vlan header in the
double-tagged vlan packets.
Fixes: 4cd91f7c29 ("netfilter: flowtable: add vlan support")
Fixes: 72efd585f7 ("netfilter: flowtable: add pppoe support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Add the VID/PIDs for the ASUS ROG RAIKIRI II controller to xpad_device
and the VID to xpad_table. The controller has a physical PC/XBOX toggle
which switches between XBOX360 and XBOXONE protocols.
Signed-off-by: Dmitriy Zharov <contact@zharov.dev>
Link: https://patch.msgid.link/20260430183522.122151-1-contact@zharov.dev
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Support for the ezx series of phones was removed in 2022, this
driver is just dead code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260430164326.2766500-2-arnd@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Support for the ezx series of phones was removed in 2022, this
driver is just dead code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260430164326.2766500-1-arnd@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The BYTE_MASK macro is the central point of the black magic
in update_permission_bitmask(). Rename it to something
that relates to how it is used, and add a comment explaining
how it works.
Using shifts instead of powers of two was actually suggested by
David Hildenbrand back in 2017 for clarity[1] but I evidently
forgot his suggestion when applying to kvm.git.
[1] https://lore.kernel.org/kvm/e4b5df86-31ae-2f4e-0666-393753e256df@redhat.com/
Tested-by: David Riley <d.riley@proxmox.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
As the logic will become more complicated with the introduction
of MBEC, at least write it only once.
Tested-by: David Riley <d.riley@proxmox.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Eric Dumazet says:
====================
net/sched: tc_dump_qdisc() optimizations
Before converting tc_dump_qdisc() to RCU, we make the following changes:
- Use for_each_netdev_dump() instead of for_each_netdev()
- Only dump qdiscs of a single device at user space request.
====================
Link: https://patch.msgid.link/20260430023628.3216283-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There is no point dumping qdiscs for all devices when user space
wants them for a single device:
tc -s -d qdisc show dev eth1
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430023628.3216283-5-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use for_each_netdev_dump() instead of for_each_netdev().
This is more scalable, and will ease RCU conversion.
This also offer better behavior when other threads
are adding or deleting netevices concurrently.
This enables dumping qdiscs for a single device
at user space request in the following patch.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430023628.3216283-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Change tc_fill_qdisc() to return -EMSGSIZE when skb is too small.
Change tc_dump_qdisc_root() to propagate tc_fill_qdisc() error to its callers.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430023628.3216283-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Change tc_fill_tclass() to return -EMSGSIZE when skb is too small.
Change its caller to propagate this error (instead of -EINVAL)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260430023628.3216283-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These tests check syncookie mode is able to reconstruct some
client options when TCP TS are used:
- wscale option.
- sackOK.
- MSS (in a limited way, especially for IPv4).
- ECN : not enabled.
Note that IPv4 and IPv6 have different msstab[] values:
IPv4 msstab[4] = { 536, 1300, 1440, 1460 }
IPv6 msstab[4] = { 1280 - 60, 1480 - 60, 1500 - 60, 9000 - 60 }
IPv4 is currently capping SND_MSS to 1460, even on a 9K MTU network.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Link: https://patch.msgid.link/20260430021444.2929534-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Change INTEL_SIP_SMC_FCS_GET_PROVISION_DATA's SMC call to async from sync
to avoid long runtime which may cause the watchdog timeout issue.
Signed-off-by: Richard Gong <richard.gong@intel.com>
Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
- Add missing pad and extensions check (Jonathan)
- Reject unsafe PAT indices for CPU cached memory (Jia)
Driver Fixes:
- Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge (Brost)
- Xe3p tuning and workaround fixes (Roper, Gustavo)
- USE drm mm instead of drm SA for CCS read/write (Satya)
- Fix leaks and null derefs (Shuicheng)
- Fix Wa_18022495364 (Tvrtko)
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Merge tag 'drm-xe-fixes-2026-04-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
API Fixes:
- Add missing pad and extensions check (Jonathan)
- Reject unsafe PAT indices for CPU cached memory (Jia)
Driver Fixes:
- Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge (Brost)
- Xe3p tuning and workaround fixes (Roper, Gustavo)
- USE drm mm instead of drm SA for CCS read/write (Satya)
- Fix leaks and null derefs (Shuicheng)
- Fix Wa_18022495364 (Tvrtko)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/afO05KvmFMn_7qcY@intel.com
Use a flexible array member to combine allocations. Simplifies memory
management.
Add __counted_by for extra runtime analysis. Also move counting variable
assignment up as required by __counted_by.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
The condition checking whether a specific errata needs patching uses
logical AND (&&) instead of bitwise AND (&). Since logical AND only
checks that both operands are non-zero, this causes all errata patches
to be applied whenever any single errata is detected, rather than only
applying the matching one.
The SiFive errata implementation correctly uses bitwise AND for the same
check.
Fixes: 0b0ca959d2 ("riscv: errata: Fix the PAUSE Opcode for MIPS P8700")
Signed-off-by: Michael Neuling <mikey@neuling.org>
Assisted-by: Cursor:claude-4.6-opus-high-thinking
Link: https://patch.msgid.link/20260409091143.1348853-2-mikey@neuling.org
[pjw@kernel.org: fixed checkpatch warning]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Tariq Toukan says:
====================
mlx5-next updates 2026-04-29
* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Extend query_esw_functions output for multi-function support
net/mlx5: Remove unused host_sf_enable field
net/mlx5: Add function_id_type for enable/disable_hca cmds
mlx5: Rename the vport number enums for host PF and VF
====================
Link: https://patch.msgid.link/20260429212747.224411-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ratheesh Kannoth says:
====================
octeontx2-af: npc: cn20k: MCAM fixes
This series tightens Marvell OcteonTX2 AF NPC support for CN20K silicon
around MCAM key typing, optional debugfs setup, defrag allocation rollback,
defrag entry relocation bookkeeping, logical MCAM clear and programming,
default-rule index handling with explicit teardown, and NIXLF reserved-slot
lookup when default rules are missing.
Patches 1 through 3 focus on AF error handling: propagate
npc_mcam_idx_2_key_type() failures through cn20k MCAM enable, config, copy,
and read paths; treat cn20k NPC debugfs nodes as optional so probe does not
fail when debugfs is unavailable; and fix defrag MCAM allocation rollback
so allocation errno is not overwritten during subbank index resolution.
Patch 4 fixes npc_defrag_move_vdx_to_free(): when an MCAM line is moved to
a new physical index, move entry2target_pffunc[] association to the new
slot, clear the old slot, and retarget the matching mcam_rules entry so
software state matches hardware after defrag.
Patches 5 through 7 refine cn20k MCAM programming: clear entries using the
logical MCAM index and resolved key width, fix bank/CFG sequencing in
npc_cn20k_config_mcam_entry(), and read action metadata from the correct
bank in npc_cn20k_read_mcam_entry().
Patches 8 through 10 complete default-rule lifecycle handling: initialize
default-rule index outputs eagerly, tear down reserved default MCAM rules
explicitly (coordinated with npc_mcam_free_all_entries()), and reject
USHRT_MAX sentinel indices from npc_get_nixlf_mcam_index() on cn20k.
====================
Link: https://patch.msgid.link/20260429022722.1110289-1-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When cn20k default L2 rules are not installed,
npc_cn20k_dft_rules_idx_get() leaves broadcast, multicast, promiscuous, and
unicast slots at USHRT_MAX. npc_get_nixlf_mcam_index() previously returned
that sentinel as a valid MCAM index, so callers could program hardware with
an invalid index.
Return -EINVAL from the cn20k branches of npc_get_nixlf_mcam_index() when
the requested slot is still USHRT_MAX. Harden cn20k NPC MCAM entry helpers
to reject out-of-range indices before touching hardware.
Drop the early bounds check in npc_enable_mcam_entry() for cn20k so invalid
indices are validated inside npc_cn20k_enable_mcam_entry() instead of being
silently ignored.
In rvu_npc_update_flowkey_alg_idx(), treat negative MCAM indices like
out-of-range values, and only update RSS actions for promiscuous and
all-multi paths when the resolved index is non-negative.
Cc: Suman Ghosh <sumang@marvell.com>
Fixes: 6d1e70282f ("octeontx2-af: npc: cn20k: Use common APIs")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-11-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
npc_cn20k_dft_rules_free() used the NPC MCAM mbox "free all" path, which
does not match how cn20k tracks default-rule MCAM slots indexes.
Resolve the default-rule indices, then for each valid slot clear the bitmap
entry, drop the PF/VF map, disable the MCAM line, clear the target
function, and npc_cn20k_idx_free(). Remove any matching software mcam_rules
nodes. On hard failure from idx_free, WARN and stop so the box stays up for
analysis.
In npc_mcam_free_all_entries(), prefetch the same default-rule indices and,
on cn20k, skip bitmap clear and idx_free when the scanned entry is one of
those reserved defaults (they are released by npc_cn20k_dft_rules_free).
Fixes: 09d3b7a140 ("octeontx2-af: npc: cn20k: Allocate default MCAM indexes")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-10-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
npc_cn20k_dft_rules_idx_get() wrote USHRT_MAX into individual outputs only
on some error paths (lbk promisc lookup, VF ucast lookup, and the PF rule
walk), which could leave other caller slots stale across retries.
Set every non-NULL bcast/mcast/promisc/ucast pointer to USHRT_MAX once at
entry, then drop the duplicate assignments on failure. Successful lookups
still overwrite the relevant slot before returning.
Fixes: 09d3b7a140 ("octeontx2-af: npc: cn20k: Allocate default MCAM indexes")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-9-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
npc_cn20k_read_mcam_entry() always reloaded action and vtag_action from
bank 0 after programming the CAM words. Use the bank returned by
npc_get_bank() for the ACTION reads as well, and read those registers once
up front so both X2 and X4 paths share the same metadata.
Return directly from the X2 keyword path now that the action fields are
already populated.
Cc: Suman Ghosh <sumang@marvell.com>
Fixes: 6d1e70282f ("octeontx2-af: npc: cn20k: Use common APIs")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-8-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For X4 keys its loop reused the bank parameter as the loop counter, so bank
no longer reflected the caller's bank after the loop and the control flow
was hard to follow.
Program NPC_AF_CN20K_MCAMEX_BANKX_CFG_EXT directly in
npc_cn20k_config_mcam_entry(): one CFG write for X2 using the computed
bank, and one CFG write per bank inside the X4 action loop. Enable the
entry at the end with npc_cn20k_enable_mcam_entry(..., true) instead of
embedding the enable bit in bank_cfg via the removed helper.
Cc: Suman Ghosh <sumang@marvell.com>
Fixes: 4e527f1e5c ("octeontx2-af: npc: cn20k: Add new mailboxes for CN20K silicon")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-7-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Replace the old four-argument CN20K MCAM clear with a per-bank static
helper and npc_cn20k_clear_mcam_entry() that takes a logical MCAM index,
resolves the key width via npc_mcam_idx_2_key_type(), and clears either one
bank (X2) or every bank (X4).
Call it from npc_clear_mcam_entry() on cn20k and log when key-type lookup
fails. Use the per-bank helper from npc_cn20k_config_mcam_entry() for
pre-program clears.
For loopback VFs, use the promisc MCAM index as ucast_idx when copying RSS
action for promisc, matching cn20k default-rule layout.
Cc: Suman Ghosh <sumang@marvell.com>
Fixes: 6d1e70282f ("octeontx2-af: npc: cn20k: Use common APIs")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-6-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
npc_defrag_move_vdx_to_free() disables, copies, and enables the MCAM entry
at a new index but previously left entry2target_pffunc[] and the mcam_rules
list still keyed to the old index. Copy the target PF association to the
new slot, clear the old one, and retarget the rule entry so software state
matches the relocated hardware context.
Fixes: 645c6e3c19 ("octeontx2-af: npc: cn20k: virtual index support")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-5-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
npc_defrag_alloc_free_slots() allocates MCAM indexes in up to two passes on
bank0 then bank1. On failure it rolls back by freeing entries already
placed in save[].
__npc_subbank_alloc() can return a negative errno while only part of the
indexes are valid. The rollback loop used rc for
npc_mcam_idx_2_subbank_idx() as well, so a successful lookup stored zero in
rc and a later __npc_subbank_free() failure could still end with return 0
when the allocation path had also left rc at zero (for example shortfall
after zero return values from the alloc helpers).
Jump to the rollback path immediately when either __npc_subbank_alloc()
call fails, preserving its errno. If both calls succeed but the total
allocated count is still less than cnt, set rc to -ENOSPC before rollback.
Use a separate err variable for npc_mcam_idx_2_subbank_idx() so a
successful lookup no longer clears a non-zero rc from the allocation phase.
Cc: Dan Carpenter <error27@gmail.com>
Fixes: 645c6e3c19 ("octeontx2-af: npc: cn20k: virtual index support")
Link: https://lore.kernel.org/netdev/adjNJEpILRZATB2N@stanley.mountain/
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-4-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
