Commit Graph

1436960 Commits (98236343bb5dbbf3fcb3260795be2bbb1e3d2001)

Author SHA1 Message Date
Marco Crivellari 98236343bb block: Add WQ_PERCPU to alloc_workqueue users
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

   commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
   commit 930c2ea566 ("workqueue: Add new WQ_PERCPU flag")

The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.

In order to keep alloc_workqueue() behavior identical, explicitly request
WQ_PERCPU.

Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Link: https://patch.msgid.link/20260223092920.60424-2-marco.crivellari@suse.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-17 14:38:22 -06:00
Naman Jain 41c665aae2 block: relax pgmap check in bio_add_page for compatible zone device pages
bio_add_page() and bio_integrity_add_page() reject pages from different
dev_pagemaps entirely, returning 0 even when those pages have compatible
DMA mapping requirements. This forces callers to start a new bio when
buffers span pgmap boundaries, even though the pages could safely coexist
as separate bvec entries.

This matters for guests where memory is registered through
devm_memremap_pages() with MEMORY_DEVICE_GENERIC in multiple calls,
creating separate dev_pagemaps for each chunk. When a direct I/O buffer
spans two such chunks, bio_add_page() rejects the second page, forcing an
unnecessary bio split or I/O failure.

Introduce zone_device_pages_compatible() in blk.h to check whether two
pages can coexist in the same bio as separate bvec entries. The block DMA
iterator (blk_dma_map_iter_start) caches the P2PDMA mapping state from the
first segment and applies it to all others, so P2PDMA pages from different
pgmaps must not be mixed, and neither must P2PDMA and non-P2PDMA pages.
All other combinations (MEMORY_DEVICE_GENERIC pages from different pgmaps,
or MEMORY_DEVICE_GENERIC with normal RAM) use the same dma_map_phys path
and are safe.

Replace the blanket zone_device_pages_have_same_pgmap() rejection with
zone_device_pages_compatible(), while keeping
zone_device_pages_have_same_pgmap() as a merge guard.
Pages from different pgmaps can be added as separate bvec entries but
must not be coalesced into the same segment, as that would make
it impossible to recover the correct pgmap via page_pgmap().

Fixes: 49580e6907 ("block: add check when merging zone device pages")
Cc: stable@vger.kernel.org
Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260410153414.4159050-3-namjain@linux.microsoft.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-17 14:37:08 -06:00
Naman Jain 13920e4b7b block: add pgmap check to biovec_phys_mergeable
biovec_phys_mergeable() is used by the request merge, DMA mapping,
and integrity merge paths to decide if two physically contiguous
bvec segments can be coalesced into one. It currently has no check
for whether the segments belong to different dev_pagemaps.

When zone device memory is registered in multiple chunks, each chunk
gets its own dev_pagemap. A single bio can legitimately contain
bvecs from different pgmaps -- iov_iter_extract_bvecs() breaks at
pgmap boundaries but the outer loop in bio_iov_iter_get_pages()
continues filling the same bio. If such bvecs are physically
contiguous, biovec_phys_mergeable() will coalesce them, making it
impossible to recover the correct pgmap for the merged segment
via page_pgmap().

Add a zone_device_pages_have_same_pgmap() check to prevent merging
bvec segments that span different pgmaps.

Fixes: 49580e6907 ("block: add check when merging zone device pages")
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
Link: https://patch.msgid.link/20260410153414.4159050-2-namjain@linux.microsoft.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-17 14:37:08 -06:00
Guangshuo Li e784f2ea0b floppy: fix reference leak on platform_device_register() failure
When platform_device_register() fails in do_floppy_init(), the embedded
struct device in floppy_device[drive] has already been initialized by
device_initialize(), but the failure path jumps to out_remove_drives
without dropping the device reference for the current drive.

Previously registered floppy devices are cleaned up in out_remove_drives,
but the device for the drive that fails registration is not, leading to
a reference leak.

The issue was identified by a static analysis tool I developed and
confirmed by manual review. Fix this by calling put_device() for the
current floppy device before jumping to the common cleanup path.

Fixes: 94fd0db7bf ("[PATCH] Floppy: Add cmos attribute to floppy driver")
Cc: stable@vger.kernel.org
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Link: https://patch.msgid.link/20260415145708.3331818-1-lgs201920130244@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-17 14:36:40 -06:00
Ming Lei a7c9fa7f66 ublk: use unchecked copy helpers for bio page data
Bio pages may originate from slab caches that lack a usercopy region
(e.g. jbd2 frozen metadata buffers allocated via jbd2_alloc()).
When CONFIG_HARDENED_USERCOPY is enabled, copy_to_iter() calls
check_copy_size() which rejects these slab pages, triggering a
kernel BUG in usercopy_abort().

This is a false positive: the data is ordinary block I/O content —
the same data the loop driver writes to its backing file via
vfs_iter_write().  The bvec length is always trusted, so the size
check in check_copy_size() is not needed either.

Switch to _copy_to_iter()/_copy_from_iter() which skip the
check_copy_size() wrapper while the underlying copy_to_user()
remains unchanged.

Acked-by: Caleb Sander Mateos <csander@purestorage.com>
Fixes: 2299ceec36 ("ublk: use copy_{to,from}_iter() for user copy")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://patch.msgid.link/20260415230246.808176-1-tom.leiming@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-17 14:36:15 -06:00
Caleb Sander Mateos 2f50154619 t10-pi: reduce ref tag code duplication
t10_pi_ref_tag() and ext_pi_ref_tag() are identical except for the final
truncation of the ref tag to 32 or 48 bits. Factor out a helper
full_pi_ref_tag() to return the untruncated ref tag and use it in
t10_pi_ref_tag() and ext_pi_ref_tag().

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260415210847.1730016-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-17 14:23:26 -06:00
Christoph Hellwig 64b437c4a9 zloop: remove irq-safe locking
All of zloop runs in user context, so drop the irq-safe locking.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://patch.msgid.link/20260414081811.549755-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-15 13:58:37 -06:00
Christoph Hellwig ec5c045f6c zloop: factor out zloop_mark_{full,empty} helpers
Move a few chunks of duplicated code into helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://patch.msgid.link/20260414081811.549755-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-15 13:58:36 -06:00
Christoph Hellwig 5b680d7afc zloop: set RQF_QUIET when completing requests on deleted devices
Reduce the dmesg spam for tests that involve device deletion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://patch.msgid.link/20260414081811.549755-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-15 13:58:36 -06:00
Christoph Hellwig 6466b211f7 zloop: improve the unaligned write pointer warning
Use the IS_ALIGNED helper and avoid extra conversions, and tell the
user what the unaligned size is.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://patch.msgid.link/20260414081811.549755-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-15 13:58:36 -06:00
Christoph Hellwig 14e0077911 zloop: use vfs_truncate
While vfs_truncate does various extra checks that we don't really need,
it is always better to use a VFS helper rather than open coding the
logic.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://patch.msgid.link/20260414081811.549755-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-15 13:58:36 -06:00
Christoph Hellwig 32be3c01c3 zloop: fix write pointer calculation in zloop_forget_cache
The write pointer is absolute and in sector units, so we need to
convert it to a relative byte address first.

Fixes: c505448748f7 ("zloop: forget write cache on force removal")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://patch.msgid.link/20260414081811.549755-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-15 13:58:36 -06:00
Linus Torvalds 5bdb4078e1 sched_ext: Changes for v7.1
- Cgroup sub-scheduler groundwork. Multiple BPF schedulers can be
   attached to cgroups and the dispatch path is made hierarchical. This
   involves substantial restructuring of the core dispatch, bypass,
   watchdog, and dump paths to be per-scheduler, along with new
   infrastructure for scheduler ownership enforcement, lifecycle
   management, and cgroup subtree iteration. The enqueue path is not yet
   updated and will follow in a later cycle.
 
 - scx_bpf_dsq_reenq() generalized to support any DSQ including remote
   local DSQs and user DSQs. Built on top of this, SCX_ENQ_IMMED
   guarantees that tasks dispatched to local DSQs either run immediately
   or get reenqueued back through ops.enqueue(), giving schedulers tighter
   control over queueing latency. Also useful for opportunistic CPU
   sharing across sub-schedulers.
 
 - ops.dequeue() was only invoked when the core knew a task was in BPF
   data structures, missing scheduling property change events and skipping
   callbacks for non-local DSQ dispatches from ops.select_cpu(). Fixed to
   guarantee exactly one ops.dequeue() call when a task leaves BPF
   scheduler custody.
 
 - Kfunc access validation moved from runtime to BPF verifier time,
   removing runtime mask enforcement.
 
 - Idle SMT sibling prioritization in the idle CPU selection path.
 
 - Documentation, selftest, and tooling updates. Misc bug fixes and
   cleanups.
 
 - Merges from tip/sched-core, cgroup/for-7.1, and for-7.0-fixes to
   resolve dependencies and conflicts for the above changes.
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Merge tag 'sched_ext-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext updates from Tejun Heo:

 - cgroup sub-scheduler groundwork

   Multiple BPF schedulers can be attached to cgroups and the dispatch
   path is made hierarchical. This involves substantial restructuring of
   the core dispatch, bypass, watchdog, and dump paths to be
   per-scheduler, along with new infrastructure for scheduler ownership
   enforcement, lifecycle management, and cgroup subtree iteration

   The enqueue path is not yet updated and will follow in a later cycle

 - scx_bpf_dsq_reenq() generalized to support any DSQ including remote
   local DSQs and user DSQs

   Built on top of this, SCX_ENQ_IMMED guarantees that tasks dispatched
   to local DSQs either run immediately or get reenqueued back through
   ops.enqueue(), giving schedulers tighter control over queueing
   latency

   Also useful for opportunistic CPU sharing across sub-schedulers

 - ops.dequeue() was only invoked when the core knew a task was in BPF
   data structures, missing scheduling property change events and
   skipping callbacks for non-local DSQ dispatches from ops.select_cpu()

   Fixed to guarantee exactly one ops.dequeue() call when a task leaves
   BPF scheduler custody

 - Kfunc access validation moved from runtime to BPF verifier time,
   removing runtime mask enforcement

 - Idle SMT sibling prioritization in the idle CPU selection path

 - Documentation, selftest, and tooling updates. Misc bug fixes and
   cleanups

* tag 'sched_ext-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (134 commits)
  tools/sched_ext: Add explicit cast from void* in RESIZE_ARRAY()
  sched_ext: Make string params of __ENUM_set() const
  tools/sched_ext: Kick home CPU for stranded tasks in scx_qmap
  sched_ext: Drop spurious warning on kick during scheduler disable
  sched_ext: Warn on task-based SCX op recursion
  sched_ext: Rename scx_kf_allowed_on_arg_tasks() to scx_kf_arg_task_ok()
  sched_ext: Remove runtime kfunc mask enforcement
  sched_ext: Add verifier-time kfunc context filter
  sched_ext: Drop redundant rq-locked check from scx_bpf_task_cgroup()
  sched_ext: Decouple kfunc unlocked-context check from kf_mask
  sched_ext: Fix ops.cgroup_move() invocation kf_mask and rq tracking
  sched_ext: Track @p's rq lock across set_cpus_allowed_scx -> ops.set_cpumask
  sched_ext: Add select_cpu kfuncs to scx_kfunc_ids_unlocked
  sched_ext: Drop TRACING access to select_cpu kfuncs
  selftests/sched_ext: Fix wrong DSQ ID in peek_dsq error message
  sched_ext: Documentation: improve accuracy of task lifecycle pseudo-code
  selftests/sched_ext: Improve runner error reporting for invalid arguments
  sched_ext: Documentation: Fix scx_bpf_move_to_local kfunc name
  sched_ext: Documentation: Add ops.dequeue() to task lifecycle
  tools/sched_ext: Fix off-by-one in scx_sdt payload zeroing
  ...
2026-04-15 10:54:24 -07:00
Linus Torvalds 7de6b4a246 workqueue: Changes for v7.1
- New default WQ_AFFN_CACHE_SHARD affinity scope subdivides LLCs into
   smaller shards to improve scalability on machines with many CPUs per
   LLC.
 
 - Misc: system_dfl_long_wq for long unbound works, devm_alloc_workqueue()
   for device-managed allocation, sysfs exposure for ordered workqueues and
   the EFI workqueue, removal of HK_TYPE_WQ from wq_unbound_cpumask, and
   various small fixes.
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Merge tag 'wq-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - New default WQ_AFFN_CACHE_SHARD affinity scope subdivides LLCs into
   smaller shards to improve scalability on machines with many CPUs per
   LLC

 - Misc:
    - system_dfl_long_wq for long unbound works
    - devm_alloc_workqueue() for device-managed allocation
    - sysfs exposure for ordered workqueues and the EFI workqueue
    - removal of HK_TYPE_WQ from wq_unbound_cpumask
    - various small fixes

* tag 'wq-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (21 commits)
  workqueue: validate cpumask_first() result in llc_populate_cpu_shard_id()
  workqueue: use NR_STD_WORKER_POOLS instead of hardcoded value
  workqueue: avoid unguarded 64-bit division
  docs: workqueue: document WQ_AFFN_CACHE_SHARD affinity scope
  workqueue: add test_workqueue benchmark module
  tools/workqueue: add CACHE_SHARD support to wq_dump.py
  workqueue: set WQ_AFFN_CACHE_SHARD as the default affinity scope
  workqueue: add WQ_AFFN_CACHE_SHARD affinity scope
  workqueue: fix typo in WQ_AFFN_SMT comment
  workqueue: Remove HK_TYPE_WQ from affecting wq_unbound_cpumask
  workqueue: unlink pwqs from wq->pwqs list in alloc_and_link_pwqs() error path
  workqueue: Remove NULL wq WARN in __queue_delayed_work()
  workqueue: fix parse_affn_scope() prefix matching bug
  workqueue: devres: Add device-managed allocate workqueue
  workqueue: Add system_dfl_long_wq for long unbound works
  tools/workqueue/wq_dump.py: add NODE prefix to all node columns
  tools/workqueue/wq_dump.py: fix column alignment in node_nr/max_active section
  tools/workqueue/wq_dump.py: remove backslash separator from node_nr/max_active header
  efi: Allow to expose the workqueue via sysfs
  workqueue: Allow to expose ordered workqueues via sysfs
  ...
2026-04-15 10:32:08 -07:00
Linus Torvalds b71f0be2d2 cgroup: Changes for v7.1
- cgroup_file_notify() locking converted from a global lock to
   per-cgroup_file spinlock with a lockless fast-path when no notification
   is needed.
 
 - Misc changes including exposing cgroup helpers for sched_ext and minor
   fixes.
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Merge tag 'cgroup-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - cgroup_file_notify() locking converted from a global lock to
   per-cgroup_file spinlock with a lockless fast-path when no
   notification is needed

 - Misc changes including exposing cgroup helpers for sched_ext and
   minor fixes

* tag 'cgroup-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/rdma: fix swapped arguments in pr_warn() format string
  cgroup/dmem: remove region parameter from dmemcg_parse_limit
  cgroup: replace global cgroup_file_kn_lock with per-cgroup_file lock
  cgroup: add lockless fast-path checks to cgroup_file_notify()
  cgroup: reduce cgroup_file_kn_lock hold time in cgroup_file_notify()
  cgroup: Expose some cgroup helpers
2026-04-15 10:18:49 -07:00
Linus Torvalds 05cef13fa8 slab updates for 7.1
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Merge tag 'slab-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab updates from Vlastimil Babka:

 - Sheaves performance improvements for systems with memoryless NUMA
   nodes, developed in response to regression reports.

   These mainly ensure that percpu sheaves exist and are used on cpus
   that belong to these memoryless nodes (Vlastimil Babka, Hao Li).

 - Cleanup API usage and constify sysfs attributes (Thomas Weißschuh)

 - Disable kfree_rcu() batching on builds intended for fuzzing/debugging
   that enable CONFIG_RCU_STRICT_GRACE_PERIOD (Jann Horn)

 - Add a kunit test for kmalloc_nolock()/kfree_nolock() (Harry Yoo)

* tag 'slab-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  slub: clarify kmem_cache_refill_sheaf() comments
  lib/tests/slub_kunit: add a test case for {kmalloc,kfree}_nolock
  MAINTAINERS: add lib/tests/slub_kunit.c to SLAB ALLOCATOR section
  slub: use N_NORMAL_MEMORY in can_free_to_pcs to handle remote frees
  slab,rcu: disable KVFREE_RCU_BATCHED for strict grace period
  slab: free remote objects to sheaves on memoryless nodes
  slab: create barns for online memoryless nodes
  slab: decouple pointer to barn from kmem_cache_node
  slab: remove alloc_full_sheaf()
  mm/slab: constify sysfs attributes
  mm/slab: create sysfs attribute through default_groups
2026-04-15 10:15:39 -07:00
Linus Torvalds a8e7ef3cec sound updates for 7.1-rc1
Nothing too thrilling here, but we see lots of driver updates and
 bug fixes, including quirk additions and refactoring works, while
 there have been little changes in the core functionality.
 Here are some highlights:
 
 * Core:
 - Add validation for the control API put callback
 - Fixes in compress-offload API timestamp handling
 - Continued ASoC core API cleanups
 
 * ASoC:
 - Add support for bus keepers (for Apple devices in future)
 - Enhancements to the SDCA support, including retaskable jacks
 - Test improvements for Cirrus Logic drivers
 - Lots of fixes for the NXP, nVidia and Qualcomm
 - Support for AMD RPL DMIC, Cirrus Logic CS42L43 and CS47L47, nVidia
   machines with CPCAP and WM8962
 
 * USB-audio:
 - Quirks for Huawei Headset, Focusrite Novation, MV-Silicon,
   Studio 1824, Arturia AF16Rig, Hotone Audio, Feaulle Rainbow,
   PreSonus AudioBox, Moondrop Ju Jiu, Scarlett 18i20, etc
 - Extended mixer volume quirk handling
 - UAF and other fixes for us144mkii, 6fire and caiaq drivers
 
 * HD-audio:
 - Add quirks or fixes for Acer, Lenovo, HP, ASUS machines
 - Fixes & cleanups of GPIO helper code
 
 * Misc:
 - Add suspend/resume support for multiple legacy ISA and Apple
   drivers
 - Further regression fixes for ctxfi driver
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Merge tag 'sound-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "Nothing too thrilling here, but we see lots of driver updates and bug
  fixes, including quirk additions and refactoring works, while there
  have been little changes in the core functionality. Here are some
  highlights:

  Core:
   - Add validation for the control API put callback
   - Fixes in compress-offload API timestamp handling
   - Continued ASoC core API cleanups

  ASoC:
   - Add support for bus keepers (for Apple devices in future)
   - Enhancements to the SDCA support, including retaskable jacks
   - Test improvements for Cirrus Logic drivers
   - Lots of fixes for the NXP, nVidia and Qualcomm
   - Support for AMD RPL DMIC, Cirrus Logic CS42L43 and CS47L47, nVidia
     machines with CPCAP and WM8962

  USB-audio:
   - Quirks for Huawei Headset, Focusrite Novation, MV-Silicon, Studio
     1824, Arturia AF16Rig, Hotone Audio, Feaulle Rainbow, PreSonus
     AudioBox, Moondrop Ju Jiu, Scarlett 18i20, etc
   - Extended mixer volume quirk handling
   - UAF and other fixes for us144mkii, 6fire and caiaq drivers

  HD-audio:
   - Add quirks or fixes for Acer, Lenovo, HP, ASUS machines
   - Fixes & cleanups of GPIO helper code

  Misc:
   - Add suspend/resume support for multiple legacy ISA and Apple
     drivers
   - Further regression fixes for ctxfi driver"

* tag 'sound-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (359 commits)
  ALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names()
  ALSA: usb-audio: Fix missing error handling for get_min_max*()
  ALSA: hda/realtek - fixed speaker no sound update
  ALSA: hda/realtek: Add quirk for Acer PT316-51S headset mic
  ALSA: usb-audio: Exclude Scarlett 18i20 1st Gen from SKIP_IFACE_SETUP
  ALSA: hda/realtek: Add quirk for Legion S7 15IMH
  ALSA: hda/realtek: Add quirk for HP Spectre x360 14-ea
  ALSA: caiaq: take a reference on the USB device in create_card()
  ASoC: dt-bindings: rockchip: convert rk3399-gru-sound to DT Schema
  ALSA: sscape: Add suspend and resume support
  ALSA: sscape: Cache per-card resources for board reinitialization
  ALSA: usb-audio: Do not expose sticky mixers
  ALSA: usb-audio: Move volume control resolution check into a function
  ALSA: usb-audio: Add error checks against get_min_max*()
  ALSA: usb-audio: Add quirk for PreSonus AudioBox USB
  ALSA: interwave: guard PM-only restore helpers with CONFIG_PM
  ALSA: usb-audio: Evaluate packsize caps at the right place
  ALSA: sc6000: Restore board setup across suspend
  ALSA: sc6000: Keep the programmed board state in card-private data
  ALSA: 6fire: fix use-after-free on disconnect
  ...
2026-04-15 09:20:49 -07:00
Linus Torvalds 4a57e0913e drm for v7.1-rc1
mm:
 - two pass MMU interval notifiers
 - add gpu active/reclaim per-node stat counters
 
 math:
 - provide __KERNEL_DIV_ROUND_CLOSEST() in UAPI
 - implement DIV_ROUND_CLOSEST() with __KERNEL_DIV_ROUND_CLOSEST()
 
 rust:
 - shared tag with driver-core: register macro and io infra
 - core: rework DMA coherent API
 - core: add interop::list to interop with C linked lists
 - core: add more num::Bounded operations
 - core: enable generic_arg_infer and add EMSGSIZE
 - workqueue: add ARef<T> support for work and delayed work
 - add GPU buddy allocator abstraction
 - add DRM shmem GEM helper abstraction
 - allow drm:::Device to dispatch work and delayed work items
   to driver private data
 - add dma_resv_lock helper and raw accessors
 
 core:
 - introduce DRM RAS infrastructure over netlink
 - add connector panel_type property
 - fourcc: add ARM interleaved 64k modifier
 - colorop: add destroy helper
 - suballoc: split into alloc and init helpers
 - mode: provide DRM_ARGB_GET*() macros for reading color components
 
 edid:
 - provide drm_output_color_Format
 
 dma-buf:
 - provide revoke mechanism for shared buffers
 - rename move_notify to invalidate_mappings
 - always enable move_notify
 - protect dma_fence_ops with RCU and improve locking
 - clean pages with helpers
 
 atomic:
 - allocate drm_private_state via callback
 - helper: use system_percpu_wq
 
 buddy:
 - make buddy allocator available to gpu level
 - add kernel-doc for buddy allocator
 - improve aligned allocation
 
 ttm:
 - fix fence signalling
 - improve tests and docs
 - improve handling of gfp_retry_mayfail
 - use per-node stat counters to track memory allocations
 - port pool to use list_lru
 - drop NUMA specific pools
 - make pool shrinker numa aware
 - track allocated pages per numa node
 
 coreboot:
 - cleanup coreboot framebuffer support
 
 sched:
 - fix race condition in drm_sched_fini
 
 pagemap:
 - enable THP support
 - pass pagemap_addr by reference
 
 gem-shmem:
 - Track page accessed/dirty status across mmap/vmap
 
 gpusvm:
 - reenable device to device migration
 - fix unbalanced unclock
 
 bridge:
 - anx7625: Support USB-C plus DT bindings
 - connector: Fix EDID detection
 - dw-hdmi-qp: Support Vendor-Specfic and SDP Infoframes; improve others
 - fsl-ldb: Fix visual artifacts plus related DT property 'enable-termination-resistor'
 - imx8qxp-pixel-link: Improve bridge reference handling
 - lt9611: Support Port-B-only input plus DT bindings
 - tda998x: Support DRM_BRIDGE_ATTACH_NO_CONNECTOR; Clean up
 - Support TH1520 HDMI plus DT bindings
 - waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus DT bindings
 - anx7625: Fix USB Type-C handling
 - cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check
 - Support Lontium LT8713SX DP MST bridge plus DT bindings
 - analogix_dp: Use DP helpers for link training
 
 panel:
 - panel-jdi-lt070me05000: Use mipi-dsi multi functions
 - panel-edp: Support Add AUO B116XAT04.1 (HW: 1A); Support CMN N116BCL-EAK (C2); Support FriendlyELEC plus DT changes
 - panel-edp: Fix timings for BOE NV140WUM-N64
 - ilitek-ili9882t: Allow GPIO calls to sleep
 - jadard: Support TAIGUAN XTI05101-01A
 - lxd: Support LXD M9189A plus DT bindings
 - mantix: Fix pixel clock; Clean up
 - motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings
 - novatek: Support Novatek/Tianma NT37700F plus DT bindings
 - simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip
   PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3"
 - novatek-nt36672a: Use mipi_dsi_*_multi() functions
 - panel-edp: Support BOE NV153WUM-N42, CMN N153JCA-ELK, CSW MNF307QS3-2
 - support Himax HX83121A plus DT bindings
 - support JuTouch JT070TM041 plus DT bindings
 - support Samsung S6E8FC0 plus DT bindings
 - himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support backlight
 - ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings
 - simple: support Tianma TM050RDH03 plus DT bindings
 
 amdgpu:
 - enable DC by default on CIK APUs
 - userq fence ioctl param size fixes
 - set panel_type to OLED for eDP
 - refactor DC i2c code
 - FAMS2 update
 - rework ttm handling to allow multiple engines
 - DC DCE 6.x cleanup
 - DC support for NUTMEG/TRAVIS DP bridge
 - DCN 4.2 support
 - GC12 idle power fix for compute
 - use struct drm_edid in non-DC code
 - enable NV12/P010 support on primary planes
 - support newer IP discovery tables
 - VCN/JPEG 5.0.2 support
 - GC/MES 12.1 updates
 - USERQ fixes
 - add DC idle state manager
 - eDP DSC seamless boot
 
 amdkfd:
 - GC 12.1 updates
 - non 4K page fixes
 
 xe:
 - basic Xe3p_LPG and NVL-P enabling patches
 - allow VM_BIND decompress support
 - add purgeable buffer object support
 - add xe_vm_get_property_ioctl
 - restrict multi-lrc to VCS/VECS engines
 - allow disabling VM overcommit in fault mode
 - dGPU memory optimizations
 - Workaround cleanups and simplification
 - Allow VFs VRAM quote changes using sysfs
 - convert GT stats to per-cpu counters
 - pagefault refactors
 - enable multi-queue on xe3p_xpc
 - disable DCC on PTL
 - make MMIO communication more robust
 - disable D3Cold for BMG on specific platforms
 - vfio: improve FLR sync for Xe VFIO
 
 i915/display:
 - C10/C20/LT PHY PLL divider verification
 - use trans push mechanism to generate PSR frame change on LNL+
 - refactor DP DSC slice config
 - VGA decode refactoring
 - refactor DPT, gen2-4 overlay, masked field register macro helpers
 - refactor stolen memory allocation decisions
 - prepare for UHBR DP tunnels
 - refactor LT PHY PLL to use DPLL framework
 - implement register polling/waiting in display code
 - add shared stepping header between i915 and display
 
 i915:
 - fix potential overflow of shmem scatterlist length
 
 nouveau:
 - provide Z cull info to userspace
 - initial GA100 support
 - shutdown on PCI device shutdown
 
 nova-core:
 - harden GSP command queue
 - add support for large RPCs
 - simplify GSP sequencer and message handling
 - refactor falcon firmware handling
 - convert to new register macro
 - conver to new DMA coherent API
 - use checked arithmetic
 - add debugfs support for gsp-rm log buffers
 - fix aux device registration for multi-GPU
 
 msm:
 - CI:
   - Uprev mesa
   - Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices
 - Core:
   - Switched to of_get_available_child_by_name()
 - DPU:
   - Fixes for DSC panels
   - Fixed brownout because of the frequency / OPP mismatch
   - Quad pipe preparation (not enabled yet)
   - Switched to virtual planes by default
   - Dropped VBIF_NRT support
   - Added support for Eliza platform
   - Reworked alpha handling
   - Switched to correct CWB definitions on Eliza
   - Dropped dummy INTF_0 on MSM8953
   - Corrected INTFs related to DP-MST
 - DP:
   - Removed debug prints looking into PHY internals
 - DSI:
   - Fixes for DSC panels
   - RGB101010 support
   - Support for SC8280XP
   - Moved PHY bindings from display/ to phy/
 - GPU:
   - Preemption support for x2-85 and a840
   - IFPC support for a840
   - SKU detection support for x2-85 and a840
   - Expose AQE support (VK ray-pipeline)
   - Avoid locking in VM_BIND fence signaling path
   - Fix to avoid reclaim in GPU snapshot path
   - Disallow foreign mapping of _NO_SHARE BOs
 - HDMI:
   - Fixed infoframes programming
 - MDP5:
   - Dropped support for MSM8974v1
   - Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998
 
 panthor:
 - add tracepoints for power and IRQs
 - fix fence handling
 - extend timestamp query with flags
 - support various sources for timestamp queries
 
 tyr:
 - fix names and model/versions
 
 rockchip:
 - vop2: use drm logging function
 - rk3576 displayport support
 - support CRTC background color
 
 atmel-hlcdc:
 - support sana5d65 LCD controller
 
 tilcdc:
 - use DT bindings schema
 - use managed DRM interfaces
 - support DRM_BRIDGE_ATTACH_NO_CONNECTOR
 
 verisilicon:
 - support DC8200 + DT bindings
 
 virtgpu:
 - support PRIME import with 3D enabled
 
 komeda:
 - fix integer overflow in AFBC checks
 
 mcde:
 - improve bridge handling
 
 gma500:
 - use drm client buffer for fbdev framebuffer
 
 amdxdna:
 - add sensors ioctls
 - provide NPU power estimate
 - support column utilization sensor
 - allow forcing DMA through IOMMU IOVA
 - support per-BO mem usage queries
 - refactor GEM implementation
 
 ivpu:
 - update boot API to v3.29.4
 - limit per-user number of doorbells/contexts
 - perform engine reset on TDR error
 
 loongson:
 - replace custom code with drm_gem_ttm_dumb_map_offset()
 
 imx:
 - support planes behind the primary plane
 - fix bus-format selection
 
 vkms:
 - support CRTC background color
 
 v3d:
 - improve handling of struct v3d_stats
 
 komeda:
 - support Arm China Linlon D6 plus DT bindings
 
 imagination:
 - improve power-off sequence
 - support context-reset notification from firmware
 
 mediatek:
 - mtk_dsi: enable hs clock during pre-enable
 - Remove all conflicting aperture devices during probe
 - Add support for mt8167 display blocks
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Merge tag 'drm-next-2026-04-15' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "Highlights:
   - new DRM RAS infrastructure using netlink
   - amdgpu: enable DC on CIK APUs, and more IP enablement, and more
     user queue work
   - xe: purgeable BO support, and new hw enablement
   - dma-buf : add revocable operations

  Full summary:

  mm:
   - two-pass MMU interval notifiers
   - add gpu active/reclaim per-node stat counters

  math:
   - provide __KERNEL_DIV_ROUND_CLOSEST() in UAPI
   - implement DIV_ROUND_CLOSEST() with __KERNEL_DIV_ROUND_CLOSEST()

  rust:
   - shared tag with driver-core: register macro and io infra
   - core: rework DMA coherent API
   - core: add interop::list to interop with C linked lists
   - core: add more num::Bounded operations
   - core: enable generic_arg_infer and add EMSGSIZE
   - workqueue: add ARef<T> support for work and delayed work
   - add GPU buddy allocator abstraction
   - add DRM shmem GEM helper abstraction
   - allow drm:::Device to dispatch work and delayed work items
     to driver private data
   - add dma_resv_lock helper and raw accessors

  core:
   - introduce DRM RAS infrastructure over netlink
   - add connector panel_type property
   - fourcc: add ARM interleaved 64k modifier
   - colorop: add destroy helper
   - suballoc: split into alloc and init helpers
   - mode: provide DRM_ARGB_GET*() macros for reading color components

  edid:
   - provide drm_output_color_Format

  dma-buf:
   - provide revoke mechanism for shared buffers
   - rename move_notify to invalidate_mappings
   - always enable move_notify
   - protect dma_fence_ops with RCU and improve locking
   - clean pages with helpers

  atomic:
   - allocate drm_private_state via callback
   - helper: use system_percpu_wq

  buddy:
   - make buddy allocator available to gpu level
   - add kernel-doc for buddy allocator
   - improve aligned allocation

  ttm:
   - fix fence signalling
   - improve tests and docs
   - improve handling of gfp_retry_mayfail
   - use per-node stat counters to track memory allocations
   - port pool to use list_lru
   - drop NUMA specific pools
   - make pool shrinker numa aware
   - track allocated pages per numa node

  coreboot:
   - cleanup coreboot framebuffer support

  sched:
   - fix race condition in drm_sched_fini

  pagemap:
   - enable THP support
   - pass pagemap_addr by reference

  gem-shmem:
   - Track page accessed/dirty status across mmap/vmap

  gpusvm:
   - reenable device to device migration
   - fix unbalanced unclock

  bridge:
   - anx7625: Support USB-C plus DT bindings
   - connector: Fix EDID detection
   - dw-hdmi-qp: Support Vendor-Specfic and SDP Infoframes; improve
     others
   - fsl-ldb: Fix visual artifacts plus related DT property
     'enable-termination-resistor'
   - imx8qxp-pixel-link: Improve bridge reference handling
   - lt9611: Support Port-B-only input plus DT bindings
   - tda998x: Support DRM_BRIDGE_ATTACH_NO_CONNECTOR; Clean up
   - Support TH1520 HDMI plus DT bindings
   - waveshare-dsi: Fix register and attach; Support 1..4 DSI lanes plus
     DT bindings
   - anx7625: Fix USB Type-C handling
   - cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check
   - Support Lontium LT8713SX DP MST bridge plus DT bindings
   - analogix_dp: Use DP helpers for link training

  panel:
   - panel-jdi-lt070me05000: Use mipi-dsi multi functions
   - panel-edp: Support Add AUO B116XAT04.1 (HW: 1A); Support CMN
     N116BCL-EAK (C2); Support FriendlyELEC plus DT changes
   - panel-edp: Fix timings for BOE NV140WUM-N64
   - ilitek-ili9882t: Allow GPIO calls to sleep
   - jadard: Support TAIGUAN XTI05101-01A
   - lxd: Support LXD M9189A plus DT bindings
   - mantix: Fix pixel clock; Clean up
   - motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings
   - novatek: Support Novatek/Tianma NT37700F plus DT bindings
   - simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip
     PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3"
   - novatek-nt36672a: Use mipi_dsi_*_multi() functions
   - panel-edp: Support BOE NV153WUM-N42, CMN N153JCA-ELK, CSW
     MNF307QS3-2
   - support Himax HX83121A plus DT bindings
   - support JuTouch JT070TM041 plus DT bindings
   - support Samsung S6E8FC0 plus DT bindings
   - himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support
     backlight
   - ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings
   - simple: support Tianma TM050RDH03 plus DT bindings

  amdgpu:
   - enable DC by default on CIK APUs
   - userq fence ioctl param size fixes
   - set panel_type to OLED for eDP
   - refactor DC i2c code
   - FAMS2 update
   - rework ttm handling to allow multiple engines
   - DC DCE 6.x cleanup
   - DC support for NUTMEG/TRAVIS DP bridge
   - DCN 4.2 support
   - GC12 idle power fix for compute
   - use struct drm_edid in non-DC code
   - enable NV12/P010 support on primary planes
   - support newer IP discovery tables
   - VCN/JPEG 5.0.2 support
   - GC/MES 12.1 updates
   - USERQ fixes
   - add DC idle state manager
   - eDP DSC seamless boot

  amdkfd:
   - GC 12.1 updates
   - non 4K page fixes

  xe:
   - basic Xe3p_LPG and NVL-P enabling patches
   - allow VM_BIND decompress support
   - add purgeable buffer object support
   - add xe_vm_get_property_ioctl
   - restrict multi-lrc to VCS/VECS engines
   - allow disabling VM overcommit in fault mode
   - dGPU memory optimizations
   - Workaround cleanups and simplification
   - Allow VFs VRAM quote changes using sysfs
   - convert GT stats to per-cpu counters
   - pagefault refactors
   - enable multi-queue on xe3p_xpc
   - disable DCC on PTL
   - make MMIO communication more robust
   - disable D3Cold for BMG on specific platforms
   - vfio: improve FLR sync for Xe VFIO

  i915/display:
   - C10/C20/LT PHY PLL divider verification
   - use trans push mechanism to generate PSR frame change on LNL+
   - refactor DP DSC slice config
   - VGA decode refactoring
   - refactor DPT, gen2-4 overlay, masked field register macro helpers
   - refactor stolen memory allocation decisions
   - prepare for UHBR DP tunnels
   - refactor LT PHY PLL to use DPLL framework
   - implement register polling/waiting in display code
   - add shared stepping header between i915 and display

  i915:
   - fix potential overflow of shmem scatterlist length

  nouveau:
   - provide Z cull info to userspace
   - initial GA100 support
   - shutdown on PCI device shutdown

  nova-core:
   - harden GSP command queue
   - add support for large RPCs
   - simplify GSP sequencer and message handling
   - refactor falcon firmware handling
   - convert to new register macro
   - conver to new DMA coherent API
   - use checked arithmetic
   - add debugfs support for gsp-rm log buffers
   - fix aux device registration for multi-GPU

  msm:
   - CI:
      - Uprev mesa
      - Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices
   - Core:
      - Switched to of_get_available_child_by_name()
   - DPU:
      - Fixes for DSC panels
      - Fixed brownout because of the frequency / OPP mismatch
      - Quad pipe preparation (not enabled yet)
      - Switched to virtual planes by default
      - Dropped VBIF_NRT support
      - Added support for Eliza platform
      - Reworked alpha handling
      - Switched to correct CWB definitions on Eliza
      - Dropped dummy INTF_0 on MSM8953
      - Corrected INTFs related to DP-MST
   - DP:
      - Removed debug prints looking into PHY internals
   - DSI:
      - Fixes for DSC panels
      - RGB101010 support
      - Support for SC8280XP
      - Moved PHY bindings from display/ to phy/
   - GPU:
      - Preemption support for x2-85 and a840
      - IFPC support for a840
      - SKU detection support for x2-85 and a840
      - Expose AQE support (VK ray-pipeline)
      - Avoid locking in VM_BIND fence signaling path
      - Fix to avoid reclaim in GPU snapshot path
      - Disallow foreign mapping of _NO_SHARE BOs
   - HDMI:
      - Fixed infoframes programming
   - MDP5:
      - Dropped support for MSM8974v1
      - Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998

  panthor:
   - add tracepoints for power and IRQs
   - fix fence handling
   - extend timestamp query with flags
   - support various sources for timestamp queries

  tyr:
   - fix names and model/versions

  rockchip:
   - vop2: use drm logging function
   - rk3576 displayport support
   - support CRTC background color

  atmel-hlcdc:
   - support sana5d65 LCD controller

  tilcdc:
   - use DT bindings schema
   - use managed DRM interfaces
   - support DRM_BRIDGE_ATTACH_NO_CONNECTOR

  verisilicon:
   - support DC8200 + DT bindings

  virtgpu:
   - support PRIME import with 3D enabled

  komeda:
   - fix integer overflow in AFBC checks

  mcde:
   - improve bridge handling

  gma500:
   - use drm client buffer for fbdev framebuffer

  amdxdna:
   - add sensors ioctls
   - provide NPU power estimate
   - support column utilization sensor
   - allow forcing DMA through IOMMU IOVA
   - support per-BO mem usage queries
   - refactor GEM implementation

  ivpu:
   - update boot API to v3.29.4
   - limit per-user number of doorbells/contexts
   - perform engine reset on TDR error

  loongson:
   - replace custom code with drm_gem_ttm_dumb_map_offset()

  imx:
   - support planes behind the primary plane
   - fix bus-format selection

  vkms:
   - support CRTC background color

  v3d:
   - improve handling of struct v3d_stats

  komeda:
   - support Arm China Linlon D6 plus DT bindings

  imagination:
   - improve power-off sequence
   - support context-reset notification from firmware

  mediatek:
   - mtk_dsi: enable hs clock during pre-enable
   - Remove all conflicting aperture devices during probe
   - Add support for mt8167 display blocks"

* tag 'drm-next-2026-04-15' of https://gitlab.freedesktop.org/drm/kernel: (1735 commits)
  drm/ttm/tests: Remove checks from ttm_pool_free_no_dma_alloc
  drm/ttm/tests: fix lru_count ASSERT
  drm/vram: remove DRM_VRAM_MM_FILE_OPERATIONS from docs
  drm/fb-helper: Fix a locking bug in an error path
  dma-fence: correct kernel-doc function parameter @flags
  ttm/pool: track allocated_pages per numa node.
  ttm/pool: make pool shrinker NUMA aware (v2)
  ttm/pool: drop numa specific pools
  ttm/pool: port to list_lru. (v2)
  drm/ttm: use gpu mm stats to track gpu memory allocations. (v4)
  mm: add gpu active/reclaim per-node stat counters (v2)
  gpu: nova-core: fix missing colon in SEC2 boot debug message
  gpu: nova-core: vbios: use from_le_bytes() for PCI ROM header parsing
  gpu: nova-core: bitfield: fix broken Default implementation
  gpu: nova-core: falcon: pad firmware DMA object size to required block alignment
  gpu: nova-core: gsp: fix undefined behavior in command queue code
  drm/shmem_helper: Make sure PMD entries get the writeable upgrade
  accel/ivpu: Trigger recovery on TDR with OS scheduling
  drm/msm: Use of_get_available_child_by_name()
  dt-bindings: display/msm: move DSI PHY bindings to phy/ subdir
  ...
2026-04-15 08:45:00 -07:00
Linus Torvalds afac4c66d1 fbdev fixes & cleanups for 7.1-rc1:
A major refactorization by Thomas Zimmermann from SUSE regarding handling of
 console font data, addition of helpers for console font rotation and split into
 individual components for glyphs, fonts and the overall fbcon state.
 
 And there is the round of usual code cleanups and fixes:
 
 Cleanups:
 - atyfb: Remove unused fb_list [Geert Uytterhoeven]
 - goldfishfb, wmt_ge_rops: use devm_platform_ioremap_resource() [Amin GATTOUT]
 - matroxfb: Mark variable with __maybe_unused [Andy Shevchenko]
 - omapfb: Add missing error check for clk_get() [Chen Ni]
 - tdfxfb: Make the VGA register initialisation a bit more obvious [Daniel Palmer]
 - macfb: Replace deprecated strcpy with strscpy [Thorsten Blum]
 
 Fixes:
 - tdfxfb, udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO [Greg Kroah-Hartman]
 - omap2: fix inconsistent lock returns in omapfb_mmap [Hongling Zeng]
 - viafb: check ioremap return value in viafb_lcd_get_mobile_state [Wang Jun]
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Merge tag 'fbdev-for-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:
 "A major refactorization by Thomas Zimmermann from SUSE regarding
  handling of console font data, addition of helpers for console font
  rotation and split into individual components for glyphs, fonts and
  the overall fbcon state.

  And there is the round of usual code cleanups and fixes:

  Cleanups:
   - atyfb: Remove unused fb_list (Geert Uytterhoeven)
   - goldfishfb, wmt_ge_rops: use devm_platform_ioremap_resource() (Amin GATTOUT)
   - matroxfb: Mark variable with __maybe_unused (Andy Shevchenko)
   - omapfb: Add missing error check for clk_get() (Chen Ni)
   - tdfxfb: Make the VGA register initialisation a bit more obvious (Daniel Palmer)
   - macfb: Replace deprecated strcpy with strscpy (Thorsten Blum)

  Fixes:
   - tdfxfb, udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO (Greg Kroah-Hartman)
   - omap2: fix inconsistent lock returns in omapfb_mmap (Hongling Zeng)
   - viafb: check ioremap return value in viafb_lcd_get_mobile_state (Wang Jun)"

* tag 'fbdev-for-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (40 commits)
  fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO
  fbdev: tdfxfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO
  fbdev: omap2: fix inconsistent lock returns in omapfb_mmap
  MAINTAINERS: Add dedicated entry for fbcon
  fbcon: Put font-rotation state into separate struct
  fbcon: Fill cursor mask in helper function
  lib/fonts: Implement font rotation
  lib/fonts: Refactor glyph-rotation helpers
  lib/fonts: Refactor glyph-pattern helpers
  lib/fonts: Implement glyph rotation
  lib/fonts: Clean up Makefile
  lib/fonts: Provide helpers for calculating glyph pitch and size
  vt: Implement helpers for struct vc_font in source file
  fbcon: Avoid OOB font access if console rotation fails
  fbdev: atyfb: Remove unused fb_list
  fbdev: matroxfb: Mark variable with __maybe_unused to avoid W=1 build break
  fbdev: update help text for CONFIG_FB_NVIDIA
  fbdev: omapfb: Add missing error check for clk_get()
  fbdev: viafb: check ioremap return value in viafb_lcd_get_mobile_state
  lib/fonts: Remove internal symbols and macros from public header file
  ...
2026-04-15 08:37:45 -07:00
Linus Torvalds 00c6649baf [GIT PULL for v7.1] media updates
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Merge tag 'media/v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new CSI tegra support, covering Tegra20 and Tegra30

 - new camera sensor drivers: T4ka3 and ov2732

 - m88ds3103: add 3103c chip support

 - uvcvideo: add support for Intel RealSense D436/D555 and P010 pixel format

 - synopsys csi2rx: add i.MX93 support

 - imx8-isi: add i.MX95 support

 - imx8mq-mipi-csi2: add i.MX8ULP support

 - dw100: add V4L2 requests support

 - support for DTV devices from Hauppauge got some improvements

 - media staging: dropped starfive-camss driver

 - media docs: document multi-committers model and improve maint profile

 - media core:
    - add v4l2_subdev_get_frame_desc_passthrough() helper
    - improve error handling in fwnode parsing

 - lots of driver fixes, cleanups and improvements

* tag 'media/v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (251 commits)
  Revert "media: cx231xx: add USB ID 2040:8360 for Hauppauge WinTV-HVR-935"
  media: synopsys: csi2rx: add i.MX93 support
  media: dt-bindings: add NXP i.MX93 compatible string
  media: synopsys: csi2rx: Use enum and u32 array for register offsets
  media: synopsys: csi2rx: implement .get_frame_desc() callback
  media: synopsys: csi2rx: only check errors from devm_clk_bulk_get_all()
  media: synopsys: csi2rx: use devm_reset_control_get_optional_exclusive()
  media: i2c: imx283: add support for non-continuous MIPI clock mode
  media: i2c: ov08d10: add support for 24 MHz input clock
  media: i2c: ov08d10: add support for reset and power management
  media: i2c: ov08d10: add support for binding via device tree
  dt-bindings: media: i2c: document Omnivision OV08D10 CMOS image sensor
  media: i2c: ov08d10: add missing newline to prints
  media: i2c: ov08d10: fix some typos in comments
  media: i2c: ov08d10: remove duplicate register write
  media: i2c: ov08d10: fix image vertical start setting
  media: i2c: ov08d10: fix runtime PM handling in probe
  staging: media: ipu7: Update TODO
  media: Add t4ka3 camera sensor driver
  media: i2c: Add ov2732 image sensor driver
  ...
2026-04-15 08:32:10 -07:00
Linus Torvalds 1f5ffc6721 Fix mismerge of the arm64 / timer-core interrupt handling changes
Commit c43267e679 ("Merge tag 'arm64-upstream' of git://...") had a
conflict in the irq entry/exit code due to commit c5538d0141 ("entry:
Split kernel mode logic from irqentry_{enter,exit}()") having moved the
core code in irqentry_enter/exit() from kernel/entry/common.c into
helper inline functions in include/linux/irq-entry-common.h.

On the other side of the merge, the timer-core code had introduced
deferred hrtimer rearming infrastructure in commit 0e98eb1481 ("entry:
Prepare for deferred hrtimer rearming"), adding two calls to
hrtimer_rearm_deferred() in irqentry_enter().

When merging the two, moving the two calls to the new location wasn't a
problem, but afterwards I had made the mistake of looking what had
happened in linux-next.  And linux-next had a very different merge
resolution in commit 04f02dc3ea74 ("Merge tag 'entry-for-arm64-26-04-08'
into sched/hrtick"), which had unified the two calls into one single
call-site in irqentry_exit_to_kernel_mode_preempt().

And that merge resolution looked cleverer than the straightforward one I
had done, so I re-did my merge the way it had been done in linux-next.

But it turns out nobody apparently tests linux-next, and the merge in
linux-next was just wrong.

The difference is that hrtimer_rearm_deferred() doesn't get called at
all for the case when state.exit_rcu is true, and the boot will
typically fail due to timers not triggering correctly.

So this undoes the "clever" merge, and does the straightforward one
instead.

Fixes: c43267e679 ("Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux"
Reported-and-tested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Link: https://lore.kernel.org/all/CAADnVQJ=MoiX4=guPWhL9vtnAELkpNx=GNm8RA1-aV424UFz2A@mail.gmail.com/
Link: https://lore.kernel.org/all/CAHk-=wg8+BER4VyFKG3rnPi2gXxbf-jbHS=EU+xhFqGVQfbutw@mail.gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-04-14 23:03:02 -07:00
Linus Torvalds 5c0f43e853 kernel-7.1-rc1.misc
Please consider pulling these changes from the signed kernel-7.1-rc1.misc tag.
 
 Thanks!
 Christian
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Merge tag 'kernel-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull pid_namespace updates from Christian Brauner:

 - pid_namespace: make init creation more flexible

   Annotate ->child_reaper accesses with {READ,WRITE}_ONCE() to protect
   the unlocked readers from cpu/compiler reordering, and enforce that
   pid 1 in a pid namespace is always the first allocated pid (the
   set_tid path already required this).

   On top of that, allow opening pid_for_children before the pid
   namespace init has been created. This lets one process create the pid
   namespace and a different process create the init via setns(), which
   makes clone3(set_tid) usable in all cases evenly and is particularly
   useful to CRIU when restoring nested containers.

   A new selftest covers both the basic create-pidns-then-init flow and
   the cross-process variant, and a MAINTAINERS entry for the pid
   namespace code is added.

 - unrelated signal cleanup: update outdated comment for the removed
   freezable_schedule()

* tag 'kernel-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  signal: update outdated comment for removed freezable_schedule()
  MAINTAINERS: add a pid namespace entry
  selftests: Add tests for creating pidns init via setns
  pid_namespace: allow opening pid_for_children before init was created
  pid: check init is created first after idr alloc
  pid_namespace: avoid optimization of accesses to ->child_reaper
2026-04-14 20:28:40 -07:00
Linus Torvalds 7c8a4671dc vfs-7.1-rc1.mount.v2
Please consider pulling these changes from the signed vfs-7.1-rc1.mount.v2 tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.1-rc1.mount.v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount updates from Christian Brauner:

 - Add FSMOUNT_NAMESPACE flag to fsmount() that creates a new mount
   namespace with the newly created filesystem attached to a copy of the
   real rootfs. This returns a namespace file descriptor instead of an
   O_PATH mount fd, similar to how OPEN_TREE_NAMESPACE works for
   open_tree().

   This allows creating a new filesystem and immediately placing it in a
   new mount namespace in a single operation, which is useful for
   container runtimes and other namespace-based isolation mechanisms.

   This accompanies OPEN_TREE_NAMESPACE and avoids a needless detour via
   OPEN_TREE_NAMESPACE to get the same effect. Will be especially useful
   when you mount an actual filesystem to be used as the container
   rootfs.

 - Currently, creating a new mount namespace always copies the entire
   mount tree from the caller's namespace. For containers and sandboxes
   that intend to build their mount table from scratch this is wasteful:
   they inherit a potentially large mount tree only to immediately tear
   it down.

   This series adds support for creating a mount namespace that contains
   only a clone of the root mount, with none of the child mounts. Two
   new flags are introduced:

     - CLONE_EMPTY_MNTNS (0x400000000) for clone3(), using the 64-bit flag space
     - UNSHARE_EMPTY_MNTNS (0x00100000) for unshare()

   Both flags imply CLONE_NEWNS. The resulting namespace contains a
   single nullfs root mount with an immutable empty directory. The
   intended workflow is to then mount a real filesystem (e.g., tmpfs)
   over the root and build the mount table from there.

 - Allow MOVE_MOUNT_BENEATH to target the caller's rootfs, allowing to
   switch out the rootfs without pivot_root(2).

   The traditional approach to switching the rootfs involves
   pivot_root(2) or a chroot_fs_refs()-based mechanism that atomically
   updates fs->root for all tasks sharing the same fs_struct. This has
   consequences for fork(), unshare(CLONE_FS), and setns().

   This series instead decomposes root-switching into individually
   atomic, locally-scoped steps:

	fd_tree = open_tree(-EBADF, "/newroot", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
	fchdir(fd_tree);
	move_mount(fd_tree, "", AT_FDCWD, "/", MOVE_MOUNT_BENEATH | MOVE_MOUNT_F_EMPTY_PATH);
	chroot(".");
	umount2(".", MNT_DETACH);

   Since each step only modifies the caller's own state, the
   fork/unshare/setns races are eliminated by design.

   A key step to making this possible is to remove the locked mount
   restriction. Originally MOVE_MOUNT_BENEATH doesn't support mounting
   beneath a mount that is locked. The locked mount protects the
   underlying mount from being revealed. This is a core mechanism of
   unshare(CLONE_NEWUSER | CLONE_NEWNS). The mounts in the new mount
   namespace become locked. That effectively makes the new mount table
   useless as the caller cannot ever get rid of any of the mounts no
   matter how useless they are.

   We can lift this restriction though. We simply transfer the locked
   property from the top mount to the mount beneath. This works because
   what we care about is to protect the underlying mount aka the parent.
   The mount mounted between the parent and the top mount takes over the
   job of protecting the parent mount from the top mount mount. This
   leaves us free to remove the locked property from the top mount which
   can consequently be unmounted:

	unshare(CLONE_NEWUSER | CLONE_NEWNS)

   and we inherit a clone of procfs on /proc then currently we cannot
   unmount it as:

	umount -l /proc

   will fail with EINVAL because the procfs mount is locked.

   After this series we can now do:

	mount --beneath -t tmpfs tmpfs /proc
	umount -l /proc

   after which a tmpfs mount has been placed beneath the procfs mount.
   The tmpfs mount has become locked and the procfs mount has become
   unlocked.

   This means you can safely modify an inherited mount table after
   unprivileged namespace creation.

   Afterwards we simply make it possible to move a mount beneath the
   rootfs allowing to upgrade the rootfs.

   Removing the locked restriction makes this very useful for containers
   created with unshare(CLONE_NEWUSER | CLONE_NEWNS) to reshuffle an
   inherited mount table safely and MOVE_MOUNT_BENEATH makes it possible
   to switch out the rootfs instead of using the costly pivot_root(2).

* tag 'vfs-7.1-rc1.mount.v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  selftests/namespaces: remove unused utils.h include from listns_efault_test
  selftests/fsmount_ns: add missing TARGETS and fix cap test
  selftests/empty_mntns: fix wrong CLONE_EMPTY_MNTNS hex value in comment
  selftests/empty_mntns: fix statmount_alloc() signature mismatch
  selftests/statmount: remove duplicate wait_for_pid()
  mount: always duplicate mount
  selftests/filesystems: add MOVE_MOUNT_BENEATH rootfs tests
  move_mount: allow MOVE_MOUNT_BENEATH on the rootfs
  move_mount: transfer MNT_LOCKED
  selftests/filesystems: add clone3 tests for empty mount namespaces
  selftests/filesystems: add tests for empty mount namespaces
  namespace: allow creating empty mount namespaces
  selftests: add FSMOUNT_NAMESPACE tests
  selftests/statmount: add statmount_alloc() helper
  tools: update mount.h header
  mount: add FSMOUNT_NAMESPACE
  mount: simplify __do_loopback()
  mount: start iterating from start of rbtree
2026-04-14 19:59:25 -07:00
Linus Torvalds 91a4855d6c Networking changes for 7.1.
Core & protocols
 ----------------
 
  - Support HW queue leasing, allowing containers to be granted access
    to HW queues for zero-copy operations and AF_XDP.
 
  - Number of code moves to help the compiler with inlining.
    Avoid output arguments for returning drop reason where possible.
 
  - Rework drop handling within qdiscs to include more metadata
    about the reason and dropping qdisc in the tracepoints.
 
  - Remove the rtnl_lock use from IP Multicast Routing.
 
  - Pack size information into the Rx Flow Steering table pointer
    itself. This allows making the table itself a flat array of u32s,
    thus making the table allocation size a power of two.
 
  - Report TCP delayed ack timer information via socket diag.
 
  - Add ip_local_port_step_width sysctl to allow distributing the randomly
    selected ports more evenly throughout the allowed space.
 
  - Add support for per-route tunsrc in IPv6 segment routing.
 
  - Start work of switching sockopt handling to iov_iter.
 
  - Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid
    buffer size drifting up.
 
  - Support MSG_EOR in MPTCP.
 
  - Add stp_mode attribute to the bridge driver for STP mode selection.
    This addresses concerns about call_usermodehelper() usage.
 
  - Remove UDP-Lite support (as announced in 2023).
 
  - Remove support for building IPv6 as a module.
    Remove the now unnecessary function calling indirection.
 
 Cross-tree stuff
 ----------------
 
  - Move Michael MIC code from generic crypto into wireless,
    it's considered insecure but some WiFi networks still need it.
 
 Netfilter
 ---------
 
  - Switch nft_fib_ipv6 module to no longer need temporary dst_entry
    object allocations by using fib6_lookup() + RCU.
    Florian W reports this gets us ~13% higher packet rate.
 
  - Convert IPVS's global __ip_vs_mutex to per-net service_mutex and
    switch the service tables to be per-net. Convert some code that
    walks the service lists to use RCU instead of the service_mutex.
 
  - Add more opinionated input validation to lower security exposure.
 
  - Make IPVS hash tables to be per-netns and resizable.
 
 Wireless
 --------
 
  - Finished assoc frame encryption/EPPKE/802.1X-over-auth.
 
  - Radar detection improvements.
 
  - Add 6 GHz incumbent signal detection APIs.
 
  - Multi-link support for FILS, probe response templates and
    client probing.
 
  - New APIs and mac80211 support for NAN (Neighbor Aware Networking,
    aka Wi-Fi Aware) so less work must be in firmware.
 
 Driver API
 ----------
 
  - Add numerical ID for devlink instances (to avoid having to create
    fake bus/device pairs just to have an ID). Support shared devlink
    instances which span multiple PFs.
 
  - Add standard counters for reporting pause storm events
    (implement in mlx5 and fbnic).
 
  - Add configuration API for completion writeback buffering
    (implement in mana).
 
  - Support driver-initiated change of RSS context sizes.
 
  - Support DPLL monitoring input frequency (implement in zl3073x).
 
  - Support per-port resources in devlink (implement in mlx5).
 
 Misc
 ----
 
  - Expand the YAML spec for Netfilter.
 
 Drivers
 -------
 
  - Software:
    - macvlan: support multicast rx for bridge ports with shared source
      MAC address
    - team: decouple receive and transmit enablement for IEEE 802.3ad
      LACP "independent control"
 
  - Ethernet high-speed NICs:
    - nVidia/Mellanox:
      - support high order pages in zero-copy mode (for payload
        coalescing)
      - support multiple packets in a page (for systems with 64kB pages)
    - Broadcom 25-400GE (bnxt):
      - implement XDP RSS hash metadata extraction
      - add software fallback for UDP GSO, lowering the IOMMU cost
    - Broadcom 800GE (bnge):
      - add link status and configuration handling
      - add various HW and SW statistics
    - Marvell/Cavium:
      - NPC HW block support for cn20k
    - Huawei (hinic3):
      - add mailbox / control queue
      - add rx VLAN offload
      - add driver info and link management
 
  - Ethernet NICs:
    - Marvell/Aquantia:
      - support reading SFP module info on some AQC100 cards
    - Realtek PCI (r8169):
      - add support for RTL8125cp
    - Realtek USB (r8152):
      - support for the RTL8157 5Gbit chip
      - add 2500baseT EEE status/configuration support
 
  - Ethernet NICs embedded and off-the-shelf IP:
    - Synopsys (stmmac):
      - cleanup and reorganize SerDes handling and PCS support
      - cleanup descriptor handling and per-platform data
      - cleanup and consolidate MDIO defines and handling
      - shrink driver memory use for internal structures
      - improve Tx IRQ coalescing
      - improve TCP segmentation handling
      - add support for Spacemit K3
    - Cadence (macb):
      - support PHYs that have inband autoneg disabled with GEM
      - support IEEE 802.3az EEE
      - rework usrio capabilities and handling
    - AMD (xgbe):
      - improve power management for S0i3
      - improve TX resilience for link-down handling
 
  - Virtual:
    - Google cloud vNIC:
      - support larger ring sizes in DQO-QPL mode
      - improve HW-GRO handling
      - support UDP GSO for DQO format
    - PCIe NTB:
      - support queue count configuration
 
  - Ethernet PHYs:
    - automatically disable PHY autonomous EEE if MAC is in charge
    - Broadcom:
      - add BCM84891/BCM84892 support
    - Micrel:
      - support for LAN9645X internal PHY
    - Realtek:
      - add RTL8224 pair order support
      - support PHY LEDs on RTL8211F-VD
      - support spread spectrum clocking (SSC)
    - Maxlinear:
      - add PHY-level statistics via ethtool
 
  - Ethernet switches:
    - Maxlinear (mxl862xx):
      - support for bridge offloading
      - support for VLANs
      - support driver statistics
 
  - Bluetooth:
    - large number of fixes and new device IDs
    - Mediatek:
      - support MT6639 (MT7927)
      - support MT7902 SDIO
 
  - WiFi:
    - Intel (iwlwifi):
      - UNII-9 and continuing UHR work
    - MediaTek (mt76):
      - mt7996/mt7925 MLO fixes/improvements
      - mt7996 NPU support (HW eth/wifi traffic offload)
    - Qualcomm (ath12k):
      - monitor mode support on IPQ5332
      - basic hwmon temperature reporting
      - support IPQ5424
    - Realtek:
      - add USB RX aggregation to improve performance
      - add USB TX flow control by tracking in-flight URBs
 
  - Cellular:
    - IPA v5.2 support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Support HW queue leasing, allowing containers to be granted access
     to HW queues for zero-copy operations and AF_XDP

   - Number of code moves to help the compiler with inlining. Avoid
     output arguments for returning drop reason where possible

   - Rework drop handling within qdiscs to include more metadata about
     the reason and dropping qdisc in the tracepoints

   - Remove the rtnl_lock use from IP Multicast Routing

   - Pack size information into the Rx Flow Steering table pointer
     itself. This allows making the table itself a flat array of u32s,
     thus making the table allocation size a power of two

   - Report TCP delayed ack timer information via socket diag

   - Add ip_local_port_step_width sysctl to allow distributing the
     randomly selected ports more evenly throughout the allowed space

   - Add support for per-route tunsrc in IPv6 segment routing

   - Start work of switching sockopt handling to iov_iter

   - Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid
     buffer size drifting up

   - Support MSG_EOR in MPTCP

   - Add stp_mode attribute to the bridge driver for STP mode selection.
     This addresses concerns about call_usermodehelper() usage

   - Remove UDP-Lite support (as announced in 2023)

   - Remove support for building IPv6 as a module. Remove the now
     unnecessary function calling indirection

  Cross-tree stuff:

   - Move Michael MIC code from generic crypto into wireless, it's
     considered insecure but some WiFi networks still need it

  Netfilter:

   - Switch nft_fib_ipv6 module to no longer need temporary dst_entry
     object allocations by using fib6_lookup() + RCU.

     Florian W reports this gets us ~13% higher packet rate

   - Convert IPVS's global __ip_vs_mutex to per-net service_mutex and
     switch the service tables to be per-net. Convert some code that
     walks the service lists to use RCU instead of the service_mutex

   - Add more opinionated input validation to lower security exposure

   - Make IPVS hash tables to be per-netns and resizable

  Wireless:

   - Finished assoc frame encryption/EPPKE/802.1X-over-auth

   - Radar detection improvements

   - Add 6 GHz incumbent signal detection APIs

   - Multi-link support for FILS, probe response templates and client
     probing

   - New APIs and mac80211 support for NAN (Neighbor Aware Networking,
     aka Wi-Fi Aware) so less work must be in firmware

  Driver API:

   - Add numerical ID for devlink instances (to avoid having to create
     fake bus/device pairs just to have an ID). Support shared devlink
     instances which span multiple PFs

   - Add standard counters for reporting pause storm events (implement
     in mlx5 and fbnic)

   - Add configuration API for completion writeback buffering (implement
     in mana)

   - Support driver-initiated change of RSS context sizes

   - Support DPLL monitoring input frequency (implement in zl3073x)

   - Support per-port resources in devlink (implement in mlx5)

  Misc:

   - Expand the YAML spec for Netfilter

  Drivers

   - Software:
      - macvlan: support multicast rx for bridge ports with shared
        source MAC address
      - team: decouple receive and transmit enablement for IEEE 802.3ad
        LACP "independent control"

   - Ethernet high-speed NICs:
      - nVidia/Mellanox:
         - support high order pages in zero-copy mode (for payload
           coalescing)
         - support multiple packets in a page (for systems with 64kB
           pages)
      - Broadcom 25-400GE (bnxt):
         - implement XDP RSS hash metadata extraction
         - add software fallback for UDP GSO, lowering the IOMMU cost
      - Broadcom 800GE (bnge):
         - add link status and configuration handling
         - add various HW and SW statistics
      - Marvell/Cavium:
         - NPC HW block support for cn20k
      - Huawei (hinic3):
         - add mailbox / control queue
         - add rx VLAN offload
         - add driver info and link management

   - Ethernet NICs:
      - Marvell/Aquantia:
         - support reading SFP module info on some AQC100 cards
      - Realtek PCI (r8169):
         - add support for RTL8125cp
      - Realtek USB (r8152):
         - support for the RTL8157 5Gbit chip
         - add 2500baseT EEE status/configuration support

   - Ethernet NICs embedded and off-the-shelf IP:
      - Synopsys (stmmac):
         - cleanup and reorganize SerDes handling and PCS support
         - cleanup descriptor handling and per-platform data
         - cleanup and consolidate MDIO defines and handling
         - shrink driver memory use for internal structures
         - improve Tx IRQ coalescing
         - improve TCP segmentation handling
         - add support for Spacemit K3
      - Cadence (macb):
         - support PHYs that have inband autoneg disabled with GEM
         - support IEEE 802.3az EEE
         - rework usrio capabilities and handling
      - AMD (xgbe):
         - improve power management for S0i3
         - improve TX resilience for link-down handling

   - Virtual:
      - Google cloud vNIC:
         - support larger ring sizes in DQO-QPL mode
         - improve HW-GRO handling
         - support UDP GSO for DQO format
      - PCIe NTB:
         - support queue count configuration

   - Ethernet PHYs:
      - automatically disable PHY autonomous EEE if MAC is in charge
      - Broadcom:
         - add BCM84891/BCM84892 support
      - Micrel:
         - support for LAN9645X internal PHY
      - Realtek:
         - add RTL8224 pair order support
         - support PHY LEDs on RTL8211F-VD
         - support spread spectrum clocking (SSC)
      - Maxlinear:
         - add PHY-level statistics via ethtool

   - Ethernet switches:
      - Maxlinear (mxl862xx):
         - support for bridge offloading
         - support for VLANs
         - support driver statistics

   - Bluetooth:
      - large number of fixes and new device IDs
      - Mediatek:
         - support MT6639 (MT7927)
         - support MT7902 SDIO

   - WiFi:
      - Intel (iwlwifi):
         - UNII-9 and continuing UHR work
      - MediaTek (mt76):
         - mt7996/mt7925 MLO fixes/improvements
         - mt7996 NPU support (HW eth/wifi traffic offload)
      - Qualcomm (ath12k):
         - monitor mode support on IPQ5332
         - basic hwmon temperature reporting
         - support IPQ5424
      - Realtek:
         - add USB RX aggregation to improve performance
         - add USB TX flow control by tracking in-flight URBs

   - Cellular:
      - IPA v5.2 support"

* tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1561 commits)
  net: pse-pd: fix kernel-doc function name for pse_control_find_by_id()
  wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit
  wireguard: allowedips: remove redundant space
  tools: ynl: add sample for wireguard
  wireguard: allowedips: Use kfree_rcu() instead of call_rcu()
  MAINTAINERS: Add netkit selftest files
  selftests/net: Add additional test coverage in nk_qlease
  selftests/net: Split netdevsim tests from HW tests in nk_qlease
  tools/ynl: Make YnlFamily closeable as a context manager
  net: airoha: Add missing PPE configurations in airoha_ppe_hw_init()
  net: airoha: Fix VIP configuration for AN7583 SoC
  net: caif: clear client service pointer on teardown
  net: strparser: fix skb_head leak in strp_abort_strp()
  net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()
  selftests/bpf: add test for xdp_master_redirect with bond not up
  net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master
  net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration
  sctp: disable BH before calling udp_tunnel_xmit_skb()
  sctp: fix missing encap_port propagation for GSO fragments
  net: airoha: Rely on net_device pointer in ETS callbacks
  ...
2026-04-14 18:36:10 -07:00
Linus Torvalds f5ad410100 bpf-next-7.1
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Merge tag 'bpf-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Welcome new BPF maintainers: Kumar Kartikeya Dwivedi, Eduard
   Zingerman while Martin KaFai Lau reduced his load to Reviwer.

 - Lots of fixes everywhere from many first time contributors. Thank you
   All.

 - Diff stat is dominated by mechanical split of verifier.c into
   multiple components:

    - backtrack.c: backtracking logic and jump history
    - states.c:    state equivalence
    - cfg.c:       control flow graph, postorder, strongly connected
                   components
    - liveness.c:  register and stack liveness
    - fixups.c:    post-verification passes: instruction patching, dead
                   code removal, bpf_loop inlining, finalize fastcall

   8k line were moved. verifier.c still stands at 20k lines.

   Further refactoring is planned for the next release.

 - Replace dynamic stack liveness with static stack liveness based on
   data flow analysis.

   This improved the verification time by 2x for some programs and
   equally reduced memory consumption. New logic is in liveness.c and
   supported by constant folding in const_fold.c (Eduard Zingerman,
   Alexei Starovoitov)

 - Introduce BTF layout to ease addition of new BTF kinds (Alan Maguire)

 - Use kmalloc_nolock() universally in BPF local storage (Amery Hung)

 - Fix several bugs in linked registers delta tracking (Daniel Borkmann)

 - Improve verifier support of arena pointers (Emil Tsalapatis)

 - Improve verifier tracking of register bounds in min/max and tnum
   domains (Harishankar Vishwanathan, Paul Chaignon, Hao Sun)

 - Further extend support for implicit arguments in the verifier (Ihor
   Solodrai)

 - Add support for nop,nop5 instruction combo for USDT probes in libbpf
   (Jiri Olsa)

 - Support merging multiple module BTFs (Josef Bacik)

 - Extend applicability of bpf_kptr_xchg (Kaitao Cheng)

 - Retire rcu_trace_implies_rcu_gp() (Kumar Kartikeya Dwivedi)

 - Support variable offset context access for 'syscall' programs (Kumar
   Kartikeya Dwivedi)

 - Migrate bpf_task_work and dynptr to kmalloc_nolock() (Mykyta
   Yatsenko)

 - Fix UAF in in open-coded task_vma iterator (Puranjay Mohan)

* tag 'bpf-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (241 commits)
  selftests/bpf: cover short IPv4/IPv6 inputs with adjust_room
  bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb
  selftests/bpf: Use memfd_create instead of shm_open in cgroup_iter_memcg
  selftests/bpf: Add test for cgroup storage OOB read
  bpf: Fix OOB in pcpu_init_value
  selftests/bpf: Fix reg_bounds to match new tnum-based refinement
  selftests/bpf: Add tests for non-arena/arena operations
  bpf: Allow instructions with arena source and non-arena dest registers
  bpftool: add missing fsession to the usage and docs of bpftool
  docs/bpf: add missing fsession attach type to docs
  bpf: add missing fsession to the verifier log
  bpf: Move BTF checking logic into check_btf.c
  bpf: Move backtracking logic to backtrack.c
  bpf: Move state equivalence logic to states.c
  bpf: Move check_cfg() into cfg.c
  bpf: Move compute_insn_live_regs() into liveness.c
  bpf: Move fixup/post-processing logic from verifier.c into fixups.c
  bpf: Simplify do_check_insn()
  bpf: Move checks for reserved fields out of the main pass
  bpf: Delete unused variable
  ...
2026-04-14 18:04:04 -07:00
Linus Torvalds e997ac58ad linux_kselftest-next-7.1-rc1
Improvements and fixes kselftest, kselftest harness, frameworks
 and individual tests:
 
 -- cpu-hotplug: fix to check if cpu hotplug is supported to avoid
    test failures when cpu hotplug isn't supported.
 -- frace: fix to relevant comparisons and path checks in the helper so
    it  handles those patterns without spurious shell warnings.
 -- runner.sh: add ktrap support
 -- tracing: fix to make --logdir option work again
 -- tracing: fix to check awk supports non POSIX strtonum()
 -- mqueue: fix incorrectly named settings file to make sure the test
    used the correct timeout value
 -- kselftest:
    - fix to treat xpass as successful result
    - add ksft_reset_state()
 -- kselftest_harness:
    - validate kselftest exit codes are handled explicitly
    - add detection of invalid mixing of kselftest and harness functionality
    - add validation of intermixing of kselftest and harness functionality
 -- run_kselftest.sh:
    - remove unused $ROOT
    - resolve BASE_DIR with pwd -P to avoid dependency on realpath
      or readlink commands to generate a physical absolute path for
      BASE_DIR
    - allow choosing per-test log directory
    - preserve subtarget failures in all/install
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Merge tag 'linux_kselftest-next-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - cpu-hotplug: fix to check if cpu hotplug is supported to avoid
   test failures when cpu hotplug isn't supported.

 - frace: fix to relevant comparisons and path checks in the helper so
   it  handles those patterns without spurious shell warnings.

 - runner.sh: add ktrap support

 - tracing: fix to make --logdir option work again

 - tracing: fix to check awk supports non POSIX strtonum()

 - mqueue: fix incorrectly named settings file to make sure the test
   used the correct timeout value

 - kselftest:
    - fix to treat xpass as successful result
    - add ksft_reset_state()

 - kselftest_harness:
    - validate kselftest exit codes are handled explicitly
    - add detection of invalid mixing of kselftest and harness
      functionality
    - add validation of intermixing of kselftest and harness
      functionality

 - run_kselftest.sh:
    - remove unused $ROOT
    - resolve BASE_DIR with pwd -P to avoid dependency on realpath
      or readlink commands to generate a physical absolute path for
      BASE_DIR
    - allow choosing per-test log directory
    - preserve subtarget failures in all/install

* tag 'linux_kselftest-next-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ftrace: Quote check_requires comparisons
  selftests: Preserve subtarget failures in all/install
  selftests/run_kselftest.sh: Allow choosing per-test log directory
  selftests/run_kselftest.sh: Resolve BASE_DIR with pwd -P
  selftests/run_kselftest.sh: Remove unused $ROOT
  selftests/cpu-hotplug: Fix check for cpu hotplug not supported
  selftests/mqueue: Fix incorrectly named file
  selftests: Use ktap helpers for runner.sh
  selftests: harness: Validate intermixing of kselftest and harness functionality
  selftests: harness: Detect illegal mixing of kselftest and harness functionality
  selftests: kselftest: Add ksft_reset_state()
  selftests: harness: Validate that explicit kselftest exitcodes are handled
  selftests: kselftest: Treat xpass as successful result
  selftests/tracing: Fix to check awk supports non POSIX strtonum()
  selftests/tracing: Fix to make --logdir option work again
2026-04-14 17:46:12 -07:00
Linus Torvalds 6198c86a97 linux_kselftest-kunit-7.1-rc1
Fixes kunit tool to
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    to make sure the TTY isn't messed up and terminate the running
    kernel.
 -- recommend --raw_output=all when KTAP header isn't found in the kernel
    output, it's useful to re-run the test with --raw_output=all to find
    out the reasons why the test didn't complete.
 -- skip stty when stdin is not a tty to avoid writing noise to stderr.
 -- show suites when user runs --list_suites option instead of entire
    list of tests to make the output user friendly and concise.
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Merge tag 'linux_kselftest-kunit-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit tool updates from Shuah Khan:

 - terminate kernel under test on SIGINT when it catches SIGINT to make
   sure the TTY isn't messed up and terminate the running kernel

 - recommend --raw_output=all when KTAP header isn't found in the kernel
   output, it's useful to re-run the test with --raw_output=all to find
   out the reasons why the test didn't complete.

 - skip stty when stdin is not a tty to avoid writing noise to stderr.

 - show suites when user runs --list_suites option instead of entire
   list of tests to make the output user friendly and concise.

* tag 'linux_kselftest-kunit-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: tool: Terminate kernel under test on SIGINT
  kunit: tool: skip stty when stdin is not a tty
  kunit: tool: Recommend --raw_output=all if no KTAP found
  kunit: Add --list_suites to show suites
2026-04-14 17:39:42 -07:00
Linus Torvalds 88b29f3f57 Modules changes for v7.1-rc1
Kernel symbol flags:
 
   - Replace the separate *_gpl symbol sections (__ksymtab_gpl and
     __kcrctab_gpl) with a unified symbol table and a new
     __kflagstab section. This section stores symbol flags, such as
     the GPL-only flag, as an 8-bit bitset for each exported symbol.
     This is a cleanup that simplifies symbol lookup in the module
     loader by avoiding table fragmentation and will allow a cleaner
     way to add more flags later if needed.
 
 Module signature UAPI:
 
   - Move struct module_signature to the UAPI headers to allow reuse
     by tools outside the kernel proper, such as kmod and
     scripts/sign-file. This also renames a few constants for clarity
     and drops unused signature types as preparation for hash-based
     module integrity checking work that's in progress.
 
 Sysfs:
 
   - Add a /sys/module/<module>/import_ns sysfs attribute to show
     the symbol namespaces imported by loaded modules. This makes it
     easier to verify driver API access at runtime on systems that
     care about such things (e.g. Android).
 
 Cleanups and fixes:
 
   - Force sh_addr to 0 for all sections in module.lds. This prevents
     non-zero section addresses when linking modules with ld.bfd -r,
     which confused elfutils.
 
   - Fix a memory leak of charp module parameters on module unload
     when the kernel is configured with CONFIG_SYSFS=n.
 
   - Override the -EEXIST error code returned by module_init() to
     userspace. This prevents confusion with the errno reserved by
     the module loader to indicate that a module is already loaded.
 
   - Simplify the warning message and drop the stack dump on positive
     returns from module_init().
 
   - Drop unnecessary extern keywords from function declarations and
     synchronize parse_args() arguments with their implementation.
 
 Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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Merge tag 'modules-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux

Pull module updates from Sami Tolvanen:
 "Kernel symbol flags:

   - Replace the separate *_gpl symbol sections (__ksymtab_gpl and
     __kcrctab_gpl) with a unified symbol table and a new __kflagstab
     section.

     This section stores symbol flags, such as the GPL-only flag, as an
     8-bit bitset for each exported symbol. This is a cleanup that
     simplifies symbol lookup in the module loader by avoiding table
     fragmentation and will allow a cleaner way to add more flags later
     if needed.

  Module signature UAPI:

   - Move struct module_signature to the UAPI headers to allow reuse by
     tools outside the kernel proper, such as kmod and
     scripts/sign-file.

     This also renames a few constants for clarity and drops unused
     signature types as preparation for hash-based module integrity
     checking work that's in progress.

  Sysfs:

   - Add a /sys/module/<module>/import_ns sysfs attribute to show the
     symbol namespaces imported by loaded modules.

     This makes it easier to verify driver API access at runtime on
     systems that care about such things (e.g. Android).

  Cleanups and fixes:

   - Force sh_addr to 0 for all sections in module.lds. This prevents
     non-zero section addresses when linking modules with 'ld.bfd -r',
     which confused elfutils.

   - Fix a memory leak of charp module parameters on module unload when
     the kernel is configured with CONFIG_SYSFS=n.

   - Override the -EEXIST error code returned by module_init() to
     userspace. This prevents confusion with the errno reserved by the
     module loader to indicate that a module is already loaded.

   - Simplify the warning message and drop the stack dump on positive
     returns from module_init().

   - Drop unnecessary extern keywords from function declarations and
     synchronize parse_args() arguments with their implementation"

* tag 'modules-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: (23 commits)
  module: Simplify warning on positive returns from module_init()
  module: Override -EEXIST module return
  documentation: remove references to *_gpl sections
  module: remove *_gpl sections from vmlinux and modules
  module: deprecate usage of *_gpl sections in module loader
  module: use kflagstab instead of *_gpl sections
  module: populate kflagstab in modpost
  module: add kflagstab section to vmlinux and modules
  module: define ksym_flags enumeration to represent kernel symbol flags
  selftests/bpf: verify_pkcs7_sig: Use 'struct module_signature' from the UAPI headers
  sign-file: use 'struct module_signature' from the UAPI headers
  tools uapi headers: add linux/module_signature.h
  module: Move 'struct module_signature' to UAPI
  module: Give MODULE_SIG_STRING a more descriptive name
  module: Give 'enum pkey_id_type' a more specific name
  module: Drop unused signature types
  extract-cert: drop unused definition of PKEY_ID_PKCS7
  docs: symbol-namespaces: mention sysfs attribute
  module: expose imported namespaces via sysfs
  module: Remove extern keyword from param prototypes
  ...
2026-04-14 17:16:38 -07:00
Linus Torvalds ee60c510fb nolibc changes for 7.1
Highlights:
 
 * Many new features and optimizations to printf().
 * Rename non-standard symbols to avoid collisions with application code.
 * Support for byteswap.h, endian.h, err.h and asprintf().
 * 64-bit dev_t.
 * Smaller cleanips and fixes to the code and build system.
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Merge tag 'nolibc-20260412-for-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc

Pull nolibc updates from Thomas Weißschuh:

 - Many new features and optimizations to printf()

 - Rename non-standard symbols to avoid collisions with application code

 - Support for byteswap.h, endian.h, err.h and asprintf()

 - 64-bit dev_t

 - Smaller cleanups and fixes to the code and build system

* tag 'nolibc-20260412-for-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (61 commits)
  selftests/nolibc: use gcc 15
  tools/nolibc: support UBSAN on gcc
  tools/nolibc: create __nolibc_no_sanitize_ubsan
  selftests/nolibc: don't skip tests for unimplemented syscalls anymore
  selftests/nolibc: explicitly handle ENOSYS from ptrace()
  tools/nolibc: add byteorder conversions
  tools/nolibc: add the _syscall() macro
  tools/nolibc: move the call to __sysret() into syscall()
  tools/nolibc: rename the internal macros used in syscall()
  selftests/nolibc: only use libgcc when really necessary
  selftests/nolibc: test the memory allocator
  tools/nolibc: check for overflow in calloc() without divisions
  tools/nolibc: add support for asprintf()
  tools/nolibc: use __builtin_offsetof()
  tools/nolibc: use makedev() in fstatat()
  tools/nolibc: handle all major and minor numbers in makedev() and friends
  tools/nolibc: make dev_t 64 bits wide
  tools/nolibc: move the logic of makedev() and friends into functions
  selftests/nolibc: add a test for stat().st_rdev
  selftests/nolibc: add some tests for makedev() and friends
  ...
2026-04-14 17:13:09 -07:00
Linus Torvalds 3203a08c12 powerpc updates for 7.1
- powerpc support for huge pfnmaps
 
  - Cleanups to use masked user access
 
  - Rework pnv_ioda_pick_m64_pe() to use better bitmap API
 
  - Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC
 
  - Backup region offset update to eflcorehdr
 
  - Fixes for wii/ps3 platform
 
  - Implement JIT support for private stack in powerpc
 
  - Implement JIT support for fsession in powerpc64 trampoline
 
  - Add support for instruction array and indirect jump in powerpc
 
  - Misc selftest fixes and cleanups
 
 Thanks to:
 Abhishek Dubey, Aditya Gupta, Alex Williamson, Amit Machhiwal, Andrew
 Donnellan, Bartosz Golaszewski, Cédric Le Goater, Chen Ni, Christophe Leroy (CS
 GROUP), Hari Bathini, J. Neuschäfer, Mukesh Kumar Chaurasiya (IBM), Nam Cao,
 Nilay Shroff, Pavithra Prakash, Randy Dunlap, Ritesh Harjani (IBM), Shrikanth
 Hegde, Sourabh Jain, Vaibhav Jain, Venkat Rao Bagalkote, Yury Norov (NVIDIA)
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Merge tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Madhavan Srinivasan:

 - powerpc support for huge pfnmaps

 - Cleanups to use masked user access

 - Rework pnv_ioda_pick_m64_pe() to use better bitmap API

 - Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC

 - Backup region offset update to eflcorehdr

 - Fixes for wii/ps3 platform

 - Implement JIT support for private stack in powerpc

 - Implement JIT support for fsession in powerpc64 trampoline

 - Add support for instruction array and indirect jump in powerpc

 - Misc selftest fixes and cleanups

Thanks to Abhishek Dubey, Aditya Gupta, Alex Williamson, Amit Machhiwal,
Andrew Donnellan, Bartosz Golaszewski, Cédric Le Goater, Chen Ni,
Christophe Leroy (CS GROUP), Hari Bathini, J. Neuschäfer, Mukesh Kumar
Chaurasiya (IBM), Nam Cao, Nilay Shroff, Pavithra Prakash, Randy Dunlap,
Ritesh Harjani (IBM), Shrikanth Hegde, Sourabh Jain, Vaibhav Jain,
Venkat Rao Bagalkote, and Yury Norov (NVIDIA)

* tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (47 commits)
  mailmap: Add entry for Andrew Donnellan
  powerpc32/bpf: fix loading fsession func metadata using PPC_LI32
  selftest/bpf: Enable gotox tests for powerpc64
  powerpc64/bpf: Add support for indirect jump
  selftest/bpf: Enable instruction array test for powerpc
  powerpc/bpf: Add support for instruction array
  powerpc32/bpf: Add fsession support
  powerpc64/bpf: Implement fsession support
  selftests/bpf: Enable private stack tests for powerpc64
  powerpc64/bpf: Implement JIT support for private stack
  powerpc: pci-ioda: Optimize pnv_ioda_pick_m64_pe()
  powerpc: pci-ioda: use bitmap_alloc() in pnv_ioda_pick_m64_pe()
  powerpc/net: Inline checksum wrappers and convert to scoped user access
  powerpc/sstep: Convert to scoped user access
  powerpc/align: Convert emulate_spe() to scoped user access
  powerpc/ptrace: Convert gpr32_set_common_user() to scoped user access
  powerpc/futex: Use masked user access
  powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC
  cpuidle: powerpc: avoid double clear when breaking snooze
  powerpc/ps3: spu.c: fix enum and Return kernel-doc warnings
  ...
2026-04-14 17:10:15 -07:00
Linus Torvalds e6b162a63f m68knommu: updates and fixes for v7.1
. fix task info flags handling for 68000 nommu
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Merge tag 'm68knommu-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

Pull m68knommu update from Greg Ungerer:

 - fix task info flags handling for 68000 nommu

* tag 'm68knommu-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: Fix task info flags handling for 68000
2026-04-14 17:07:45 -07:00
Linus Torvalds c43267e679 arm64 updates for 7.1:
Core features:
 
  - Add support for FEAT_LSUI, allowing futex atomic operations without
    toggling Privileged Access Never (PAN)
 
  - Further refactor the arm64 exception handling code towards the
    generic entry infrastructure
 
  - Optimise __READ_ONCE() with CONFIG_LTO=y and allow alias analysis
    through it
 
 Memory management:
 
  - Refactor the arm64 TLB invalidation API and implementation for better
    control over barrier placement and level-hinted invalidation
 
  - Enable batched TLB flushes during memory hot-unplug
 
  - Fix rodata=full block mapping support for realm guests (when
    BBML2_NOABORT is available)
 
 Perf and PMU:
 
  - Add support for a whole bunch of system PMUs featured in NVIDIA's
    Tegra410 SoC (cspmu extensions for the fabric and PCIe, new drivers
    for CPU/C2C memory latency PMUs)
 
  - Clean up iomem resource handling in the Arm CMN driver
 
  - Fix signedness handling of AA64DFR0.{PMUVer,PerfMon}
 
 MPAM (Memory Partitioning And Monitoring):
 
  - Add architecture context-switch and hiding of the feature from KVM
 
  - Add interface to allow MPAM to be exposed to user-space using resctrl
 
  - Add errata workaround for some existing platforms
 
  - Add documentation for using MPAM and what shape of platforms can use
    resctrl
 
 Miscellaneous:
 
  - Check DAIF (and PMR, where relevant) at task-switch time
 
  - Skip TFSR_EL1 checks and barriers in synchronous MTE tag check mode
    (only relevant to asynchronous or asymmetric tag check modes)
 
  - Remove a duplicate allocation in the kexec code
 
  - Remove redundant save/restore of SCS SP on entry to/from EL0
 
  - Generate the KERNEL_HWCAP_ definitions from the arm64 hwcap
    descriptions
 
  - Add kselftest coverage for cmpbr_sigill()
 
  - Update sysreg definitions
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "The biggest changes are MPAM enablement in drivers/resctrl and new PMU
  support under drivers/perf.

  On the core side, FEAT_LSUI lets futex atomic operations with EL0
  permissions, avoiding PAN toggling.

  The rest is mostly TLB invalidation refactoring, further generic entry
  work, sysreg updates and a few fixes.

  Core features:

   - Add support for FEAT_LSUI, allowing futex atomic operations without
     toggling Privileged Access Never (PAN)

   - Further refactor the arm64 exception handling code towards the
     generic entry infrastructure

   - Optimise __READ_ONCE() with CONFIG_LTO=y and allow alias analysis
     through it

  Memory management:

   - Refactor the arm64 TLB invalidation API and implementation for
     better control over barrier placement and level-hinted invalidation

   - Enable batched TLB flushes during memory hot-unplug

   - Fix rodata=full block mapping support for realm guests (when
     BBML2_NOABORT is available)

  Perf and PMU:

   - Add support for a whole bunch of system PMUs featured in NVIDIA's
     Tegra410 SoC (cspmu extensions for the fabric and PCIe, new drivers
     for CPU/C2C memory latency PMUs)

   - Clean up iomem resource handling in the Arm CMN driver

   - Fix signedness handling of AA64DFR0.{PMUVer,PerfMon}

  MPAM (Memory Partitioning And Monitoring):

   - Add architecture context-switch and hiding of the feature from KVM

   - Add interface to allow MPAM to be exposed to user-space using
     resctrl

   - Add errata workaround for some existing platforms

   - Add documentation for using MPAM and what shape of platforms can
     use resctrl

  Miscellaneous:

   - Check DAIF (and PMR, where relevant) at task-switch time

   - Skip TFSR_EL1 checks and barriers in synchronous MTE tag check mode
     (only relevant to asynchronous or asymmetric tag check modes)

   - Remove a duplicate allocation in the kexec code

   - Remove redundant save/restore of SCS SP on entry to/from EL0

   - Generate the KERNEL_HWCAP_ definitions from the arm64 hwcap
     descriptions

   - Add kselftest coverage for cmpbr_sigill()

   - Update sysreg definitions"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (109 commits)
  arm64: rsi: use linear-map alias for realm config buffer
  arm64: Kconfig: fix duplicate word in CMDLINE help text
  arm64: mte: Skip TFSR_EL1 checks and barriers in synchronous tag check mode
  arm64/sysreg: Update ID_AA64SMFR0_EL1 description to DDI0601 2025-12
  arm64/sysreg: Update ID_AA64ZFR0_EL1 description to DDI0601 2025-12
  arm64/sysreg: Update ID_AA64FPFR0_EL1 description to DDI0601 2025-12
  arm64/sysreg: Update ID_AA64ISAR2_EL1 description to DDI0601 2025-12
  arm64/sysreg: Update ID_AA64ISAR0_EL1 description to DDI0601 2025-12
  arm64/hwcap: Generate the KERNEL_HWCAP_ definitions for the hwcaps
  arm64: kexec: Remove duplicate allocation for trans_pgd
  ACPI: AGDI: fix missing newline in error message
  arm64: Check DAIF (and PMR) at task-switch time
  arm64: entry: Use split preemption logic
  arm64: entry: Use irqentry_{enter_from,exit_to}_kernel_mode()
  arm64: entry: Consistently prefix arm64-specific wrappers
  arm64: entry: Don't preempt with SError or Debug masked
  entry: Split preemption from irqentry_exit_to_kernel_mode()
  entry: Split kernel mode logic from irqentry_{enter,exit}()
  entry: Move irqentry_enter() prototype later
  entry: Remove local_irq_{enable,disable}_exit_to_user()
  ...
2026-04-14 16:48:56 -07:00
Linus Torvalds 508fed6795 - Add new AMD MCA bank names and types to the MCA code, preceded by a clean
up of the relevant places to have them more developer-friendly (read: sort
   them alphanumerically and clean up comments) such that adding new banks is
   easy
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Merge tag 'ras_core_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RAS updates from Borislav Petkov:

 - Add new AMD MCA bank names and types to the MCA code, preceded by a
   clean up of the relevant places to have them more developer-friendly
   (read: sort them alphanumerically and clean up comments) such that
   adding new banks is easy

* tag 'ras_core_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce, EDAC/mce_amd: Add new SMCA bank types
  x86/mce, EDAC/mce_amd: Update CS bank type naming
  x86/mce, EDAC/mce_amd: Reorder SMCA bank type enums
2026-04-14 15:32:39 -07:00
Linus Torvalds 1834703b84 - amd64_edac: Add support for AMD Zen 3 (family 19h, models 40h–4fh)
- i10nm: Add GNR error information decoder support as an alternative to the
   firmware decoder
 
 — versalnet: Restructure the init/teardown logic for correct and more readable
   error handling. Also, fix two memory leaks and a resource leak
 
 — Convert several internal structs to use bounded flex arrays, enabling the
   kernel's runtime checker to catch out-of-bounds memory accesses
 
 - Mark various sysfs attribute tables read-only, preventing accidental
   modification at runtime
 
 - The usual fixes and cleanups across the subsystem
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Merge tag 'edac_updates_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - amd64_edac: Add support for AMD Zen 3 (family 19h, models 40h–4fh)

 - i10nm: Add GNR error information decoder support as an alternative to
   the firmware decoder

 - versalnet: Restructure the init/teardown logic for correct and more
   readable error handling. Also, fix two memory leaks and a resource
   leak

 - Convert several internal structs to use bounded flex arrays, enabling
   the kernel's runtime checker to catch out-of-bounds memory accesses

 - Mark various sysfs attribute tables read-only, preventing accidental
   modification at runtime

 - The usual fixes and cleanups across the subsystem

* tag 'edac_updates_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/mc: Use kzalloc_flex()
  EDAC/ie31200: Make rpl_s_cfg static
  EDAC/i10nm: Fix spelling mistake "readd" -> "read"
  EDAC/versalnet: Fix device_node leak in mc_probe()
  EDAC/versalnet: Fix memory leak in remove and probe error paths
  EDAC/amd64: Add support for family 19h, models 40h-4fh
  EDAC/i10nm: Add driver decoder for Granite Rapids server
  EDAC/sb: Use kzalloc_flex()
  EDAC/i7core: Use kzalloc_flex()
  EDAC/mpc85xx: Constify device sysfs attributes
  EDAC/device: Allow addition of const sysfs attributes
  EDAC/pci_sysfs: Constify instance sysfs attributes
  EDAC/device: Constify info sysfs attributes
  EDAC/device: Drop unnecessary and dangerous casts of attributes
  EDAC/device: Drop unused macro to_edacdev_attr()
  EDAC/altera: Drop unused field eccmgr_sysfs_attr
  EDAC/versalnet: Refactor memory controller initialization and cleanup
2026-04-14 15:29:55 -07:00
Linus Torvalds 60b8d4d492 - Change the SEV host code handling of when SNP gets enabled in order to allow
the machine to claim SNP-related resources only when SNP guests are really
   going to be launched. The user requests this by loading the ccp module and
   thus it controls when SNP initialization is done
 
   So export an API which module code can call and do the necessary SNP setup
   only when really needed
 
 - Drop an unnecessary write-back and invalidate operation that was being
   performed too early, since the ccp driver already issues its own at the
   correct point in the initialization sequence
 
 — Drop the hotplug callbacks for enabling SNP on newly onlined CPUs, which
   were both architecturally unsound (the firmware rejects initialization if any
   CPU lacks the required configuration) and buggy (the MFDM SYSCFG MSR bit was
   not being set)
 
 - Code refactoring and cleanups to accomplish the above
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Merge tag 'x86_sev_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SEV updates from Borislav Petkov:

 - Change the SEV host code handling of when SNP gets enabled in order
   to allow the machine to claim SNP-related resources only when SNP
   guests are really going to be launched. The user requests this by
   loading the ccp module and thus it controls when SNP initialization
   is done

   So export an API which module code can call and do the necessary SNP
   setup only when really needed

 - Drop an unnecessary write-back and invalidate operation that was
   being performed too early, since the ccp driver already issues its
   own at the correct point in the initialization sequence

 - Drop the hotplug callbacks for enabling SNP on newly onlined CPUs,
   which were both architecturally unsound (the firmware rejects
   initialization if any CPU lacks the required configuration) and buggy
   (the MFDM SYSCFG MSR bit was not being set)

 - Code refactoring and cleanups to accomplish the above

* tag 'x86_sev_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  crypto/ccp: Update HV_FIXED page states to allow freeing of memory
  crypto/ccp: Implement SNP x86 shutdown
  x86/sev, crypto/ccp: Move HSAVE_PA setup to arch/x86/
  x86/sev, crypto/ccp: Move SNP init to ccp driver
  x86/sev: Create snp_shutdown()
  x86/sev: Create snp_prepare()
  x86/sev: Create a function to clear/zero the RMP
  x86/sev: Rename SNP_FEATURES_PRESENT to SNP_FEATURES_IMPL
  x86/virt/sev: Keep the RMP table bookkeeping area mapped
  x86/virt/sev: Drop WBINVD before setting MSR_AMD64_SYSCFG_SNP_EN
  x86/virt/sev: Drop support for SNP hotplug
2026-04-14 15:20:54 -07:00
Linus Torvalds 970216e023 — Reference the tip tree maintainer handbook directly from the relevant
MAINTAINERS file entries (covering timers, IRQ, locking, scheduling, perf,
   x86, and others) so that contributors and tooling can know where to
   look
 
 — Enable interrupt remapping in defconfig, which is an architectural
   requirement for x2APIC to function correctly on bare metal.  Without it,
   x2APIC was effectively enabled but non-functional.
 
 — Ensure that drivers which register custom restart handlers (such as those
   needed for SoC-based x86 devices like Intel Lightning Mountain) are actually
   invoked during reboot, bringing x86 in line with how other architectures
   handle this.
 
 - Cleanups
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Merge tag 'x86_misc_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 updates from Borislav Petkov:

 - Reference the tip tree maintainer handbook directly from the relevant
   MAINTAINERS file entries (covering timers, IRQ, locking, scheduling,
   perf, x86, and others) so that contributors and tooling can know
   where to look

 - Enable interrupt remapping in defconfig, which is an architectural
   requirement for x2APIC to function correctly on bare metal. Without
   it, x2APIC was effectively enabled but non-functional.

 - Ensure that drivers which register custom restart handlers (such as
   those needed for SoC-based x86 devices like Intel Lightning Mountain)
   are actually invoked during reboot, bringing x86 in line with how
   other architectures handle this.

 - Cleanups

* tag 'x86_misc_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Add references to tip tree handbook
  x86/64/defconfig: Add CONFIG_IRQ_REMAP
  x86/reboot: Execute the kernel restart handler upon machine restart
  x86/mtrr: Use kstrtoul() in parse_mtrr_spare_reg()
2026-04-14 15:15:08 -07:00
Linus Torvalds cd4cdc53cc - The kernel carries a table of Intel CPUs family,model,stepping,...,etc
tuples which say what is the latest microcode for that particular CPU. Some
   CPU variants differ only by the platform ID which determines what microcode
   needs to be loaded on them.
 
   Carve out the platform ID handling from the microcode loader and make it
   available in a more generic place so that the old microcode
   verification machinery can use it
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Merge tag 'x86_microcode_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode loading updates from Borislav Petkov:
 "The kernel carries a table of Intel CPUs family, model, stepping, etc
  tuples which say what is the latest microcode for that particular CPU.

  Some CPU variants differ only by the platform ID which determines what
  microcode needs to be loaded on them.

  Carve out the platform ID handling from the microcode loader and make it
  available in a more generic place so that the old microcode
  verification machinery can use it"

* tag 'x86_microcode_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Add platform mask to Intel microcode "old" list
  x86/cpu: Add platform ID to CPU matching structure
  x86/cpu: Add platform ID to CPU info structure
  x86/microcode: Refactor platform ID enumeration into a helper
2026-04-14 14:57:29 -07:00
Linus Torvalds e9635f2a73 - We made the FRED support an opt-in initially out of fear of it breaking
machines left and right in the case of a hw bug in the first generation of
   machines supporting it. Now that that the FRED code has seen a lot of
   hammering, flip the logic to be opt-out as is the usual case with new hw
   features
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Merge tag 'x86_fred_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 FRED updates from Borislav Petkov:
 "We made the FRED support an opt-in initially out of fear of it
  breaking machines left and right in the case of a hw bug in the first
  generation of machines supporting it.

  Now that that the FRED code has seen a lot of hammering, flip the
  logic to be opt-out as is the usual case with new hw features"

* tag 'x86_fred_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fred: Remove kernel log message when initializing exceptions
  x86/fred: Enable FRED by default
2026-04-14 14:50:51 -07:00
Linus Torvalds fabd5a8d24 — Add return value descriptions to several internal functions, addressing
kernel-doc complaints
 
 — Add the x86 maintainer mailing list to the resctrl section so they are
   automatically included in patch submissions, and reference the applicable
   contribution rules document
 
 — Allow users to apply a single Capacity Bitmask to all cache domains at once
   using '*' as a shorthand, instead of having to specify each domain
   individually. This is particularly user-friendly on high core-count systems
   with many cache clusters
 
 - When a user provides a non-existent domain ID while configuring cache
   allocation, ensure the failure reason is properly reported to the user
   rather than silently returning an error with a misleading "ok" status
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Merge tag 'x86_cache_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 resource control updates from Borislav Petkov:

 - Add return value descriptions to several internal functions,
   addressing kernel-doc complaints

 - Add the x86 maintainer mailing list to the resctrl section so they
   are automatically included in patch submissions, and reference the
   applicable contribution rules document

 - Allow users to apply a single Capacity Bitmask to all cache domains
   at once using '*' as a shorthand, instead of having to specify each
   domain individually. This is particularly user-friendly on high
   core-count systems with many cache clusters

 - When a user provides a non-existent domain ID while configuring cache
   allocation, ensure the failure reason is properly reported to the
   user rather than silently returning an error with a misleading "ok"
   status

* tag 'x86_cache_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  fs/resctrl: Add missing return value descriptions
  MAINTAINERS: Update resctrl entry
  fs/resctrl: Add "*" shorthand to set io_alloc CBM for all domains
  fs/resctrl: Report invalid domain ID when parsing io_alloc_cbm
2026-04-14 14:46:37 -07:00
Linus Torvalds 883af1f8e8 - Print TDX module version during boot
- Make TDX attribute naming consistent
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Merge tag 'x86_tdx_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 TDX updates from Dave Hansen:
 "The only real thing of note here is printing the TDX module version.

  This is a little silly on its own, but the upcoming TDX module update
  code needs the same TDX module call. This shrinks that set a wee bit.

  There's also few minor macro cleanups and a tweak to the GetQuote ABI
  to make it easier for userspace to detect zero-length (failed) quotes"

* tag 'x86_tdx_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  virt: tdx-guest: Return error for GetQuote failures
  KVM/TDX: Rename KVM_SUPPORTED_TD_ATTRS to KVM_SUPPORTED_TDX_TD_ATTRS
  x86/tdx: Rename TDX_ATTR_* to TDX_TD_ATTR_*
  KVM/TDX: Remove redundant definitions of TDX_TD_ATTR_*
  x86/tdx: Fix the typo in TDX_ATTR_MIGRTABLE
  x86/virt/tdx: Print TDX module version during init
  x86/virt/tdx: Retrieve TDX module version
2026-04-14 14:42:55 -07:00
Linus Torvalds 51efd08647 - Convert x86 code to use generic "pagetable" APIs and ptdescs
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Merge tag 'x86_mm_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm updates from Dave Hansen:

 - Convert x86 code to use generic "pagetable" APIs and ptdescs

   This aligns some the set_memory*() code better with the new page
   table APIs, especially using ptdescs as opposed to 'struct page'
   directly.

* tag 'x86_mm_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/pat: Convert split_large_page() to use ptdescs
  x86/mm/pat: Convert populate_pgd() to use page table apis
  x86/mm/pat: Convert pmd code to use page table apis
  x86/mm/pat: Convert pte code to use page table apis
2026-04-14 14:33:56 -07:00
Linus Torvalds 9f2bb6c7b3 - Complete LASS enabling: deal with vsyscall and EFI
- Clean up CPUID usage in newer Intel audio driver
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Merge tag 'x86_cpu_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Dave Hansen:

 - Complete LASS enabling: deal with vsyscall and EFI

   The existing Linear Address Space Separation (LASS) support punted
   on support for common EFI and vsyscall configs. Complete the
   implementation by supporting EFI and vsyscall=xonly.

 - Clean up CPUID usage in newer Intel "avs" audio driver and update the
   x86-cpuid-db file

* tag 'x86_cpu_for_7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.0
  ASoC: Intel: avs: Include CPUID header at file scope
  ASoC: Intel: avs: Check maximum valid CPUID leaf
  x86/cpu: Remove LASS restriction on vsyscall emulation
  x86/vsyscall: Disable LASS if vsyscall mode is set to EMULATE
  x86/vsyscall: Restore vsyscall=xonly mode under LASS
  x86/traps: Consolidate user fixups in the #GP handler
  x86/vsyscall: Reorganize the page fault emulation code
  x86/cpu: Remove LASS restriction on EFI
  x86/efi: Disable LASS while executing runtime services
  x86/cpu: Defer LASS enabling until userspace comes up
2026-04-14 14:24:45 -07:00
Linus Torvalds 49b30f3e9c x86/vdso changes for v7.1, by Thomas Weißschuh:
- Clean up remnants of VDSO32_NOTE_MASK
  - Drop pointless #ifdeffery in vvar_vclock_fault()
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-vdso-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 vdso updates from Ingo Molnar:
 "vdso cleanups by Thomas Weißschuh:

   - Clean up remnants of VDSO32_NOTE_MASK

   - Drop pointless #ifdeffery in vvar_vclock_fault()"

* tag 'x86-vdso-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vdso: Drop pointless #ifdeffery in vvar_vclock_fault()
  x86/vdso: Clean up remnants of VDSO32_NOTE_MASK
2026-04-14 14:16:27 -07:00
Linus Torvalds 0972ba5605 x86/platform changes for v7.1:
- Remove M486/M486SX/ELAN support, first minimal step (Ingo Molnar)
 
  - Print AGESA string from DMI additional information entry
    (Yazen Ghannam, Mario Limonciello)
 
  - Improve and fix the DMI code (Mario Limonciello):
     - Correct an indexing error in <linux/dmi.h>
     - Adjust dmi_decode() to use enums <linux/dmi.h>
     - Add pr_fmt() for dmi_scan.c to fix & standardize
       the log prefixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-platform-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform updates from Ingo Molnar:

 - Remove M486/M486SX/ELAN support, first minimal step (Ingo Molnar)

 - Print AGESA string from DMI additional information entry (Yazen
   Ghannam, Mario Limonciello)

 - Improve and fix the DMI code (Mario Limonciello):
     - Correct an indexing error in <linux/dmi.h>
     - Adjust dmi_decode() to use enums <linux/dmi.h>
     - Add pr_fmt() for dmi_scan.c to fix & standardize the log prefixes

* tag 'x86-platform-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU/AMD: Print AGESA string from DMI additional information entry
  firmware: dmi: Add pr_fmt() for dmi_scan.c
  firmware: dmi: Adjust dmi_decode() to use enums
  firmware: dmi: Correct an indexing error in dmi.h
  x86/cpu: Remove M486/M486SX/ELAN support
2026-04-14 14:10:44 -07:00
Linus Torvalds ac633ba77c Miscellaneous x86 cleanups for v7.1:
- Consolidate AMD and Hygon cases in parse_topology() (Wei Wang)
  - asm constraints cleanups in __iowrite32_copy() (Uros Bizjak)
  - Drop AMD Extended Interrupt LVT macros (Naveen N Rao)
  - Don't use REALLY_SLOW_IO for delays (Juergen Gross)
  - paravirt cleanups (Juergen Gross)
  - FPU code cleanups (Borislav Petkov)
  - split-lock handling code cleanups (Borislav Petkov, Ronan Pigott)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cleanups-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:

 - Consolidate AMD and Hygon cases in parse_topology() (Wei Wang)

 - asm constraints cleanups in __iowrite32_copy() (Uros Bizjak)

 - Drop AMD Extended Interrupt LVT macros (Naveen N Rao)

 - Don't use REALLY_SLOW_IO for delays (Juergen Gross)

 - paravirt cleanups (Juergen Gross)

 - FPU code cleanups (Borislav Petkov)

 - split-lock handling code cleanups (Borislav Petkov, Ronan Pigott)

* tag 'x86-cleanups-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Correct the comment explaining what xfeatures_in_use() does
  x86/split_lock: Don't warn about unknown split_lock_detect parameter
  x86/fpu: Correct misspelled xfeaures_to_write local var
  x86/apic: Drop AMD Extended Interrupt LVT macros
  x86/cpu/topology: Consolidate AMD and Hygon cases in parse_topology()
  block/floppy: Don't use REALLY_SLOW_IO for delays
  x86/paravirt: Replace io_delay() hook with a bool
  x86/irqflags: Preemptively move include paravirt.h directive where it belongs
  x86/split_lock: Restructure the unwieldy switch-case in sld_state_show()
  x86/local: Remove trailing semicolon from _ASM_XADD in local_add_return()
  x86/asm: Use inout "+" asm onstraint modifiers in __iowrite32_copy()
2026-04-14 14:03:27 -07:00
Linus Torvalds 2ee08a8963 x86/asm updates for v7.1, by Uros Bizjak:
- Remove unnecessary "memory" clobbers from FS/GS base (read-) accessors
  - Remove unnecessary "memory" clobber from savesegment()
  - Use ASM_INPUT_RM in __loadsegment_fs()
  - Implement loadsegment()/savesegment() macros with static inline helpers
  - Use savesegment() for segment register reads in ELF core dump
  - Use savesegment() in __show_regs() instead of inline asm
  - Use correct type for 'gs' variable in __show_regs() to avoid zero-extension
  - Clean up 'sel' variable usage in do_set_thread_area()
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-asm-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 asm from Ingo Molnar:
 "x86 asm cleanups by Uros Bizjak:

   - Remove unnecessary memory clobbers from FS/GS base (read-)
     accessors and savesegment()

   - Use ASM_INPUT_RM in __loadsegment_fs() to work around clang code
     generation problems

   - Implement loadsegment()/savesegment() macros with static inline
     helpers

   - Use savesegment() for segment register reads in ELF core dump and
     __show_regs()

   - Use correct type for 'gs' variable in __show_regs() to avoid
     zero-extension

   - Clean up 'sel' variable usage in do_set_thread_area()"

* tag 'x86-asm-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tls: Clean up 'sel' variable usage in do_set_thread_area()
  x86/process/32: Use correct type for 'gs' variable in __show_regs() to avoid zero-extension
  x86/process/64: Use savesegment() in __show_regs() instead of inline asm
  x86/elf: Use savesegment() for segment register reads in ELF core dump
  x86/asm/segment: Implement loadsegment()/savesegment() macros with static inline helpers
  x86/asm/segment: Use ASM_INPUT_RM in __loadsegment_fs()
  x86/asm/segment: Remove unnecessary "memory" clobber from savesegment()
  x86/asm/fsgsbase: Remove unnecessary "memory" clobbers from FS/GS base (read-) accessors
2026-04-14 13:54:17 -07:00
Linus Torvalds 1c3b68f0d5 Scheduler changes for v7.1:
Fair scheduling updates:
 
  - Skip SCHED_IDLE rq for SCHED_IDLE tasks (Christian Loehle)
  - Remove superfluous rcu_read_lock() in the wakeup path (K Prateek Nayak)
  - Simplify the entry condition for update_idle_cpu_scan() (K Prateek Nayak)
  - Simplify SIS_UTIL handling in select_idle_cpu() (K Prateek Nayak)
  - Avoid overflow in enqueue_entity() (K Prateek Nayak)
  - Update overutilized detection (Vincent Guittot)
  - Prevent negative lag increase during delayed dequeue (Vincent Guittot)
  - Clear buddies for preempt_short (Vincent Guittot)
  - Implement more complex proportional newidle balance (Peter Zijlstra)
  - Increase weight bits for avg_vruntime (Peter Zijlstra)
  - Use full weight to __calc_delta() (Peter Zijlstra)
 
 RT and DL scheduling updates:
 
  - Fix incorrect schedstats for rt and dl thread (Dengjun Su)
  - Skip group schedulable check with rt_group_sched=0 (Michal Koutný)
  - Move group schedulability check to sched_rt_global_validate()
    (Michal Koutný)
  - Add reporting of runtime left & abs deadline to sched_getattr()
    for DEADLINE tasks (Tommaso Cucinotta)
 
 Scheduling topology updates by K Prateek Nayak:
 
  - Compute sd_weight considering cpuset partitions
  - Extract "imb_numa_nr" calculation into a separate helper
  - Allocate per-CPU sched_domain_shared in s_data
  - Switch to assigning "sd->shared" from s_data
  - Remove sched_domain_shared allocation with sd_data
 
 Energy-aware scheduling updates:
 
  - Filter false overloaded_group case for EAS (Vincent Guittot)
  - PM: EM: Switch to rcu_dereference_all() in wakeup path
    (Dietmar Eggemann)
 
 Infrastructure updates:
 
  - Replace use of system_unbound_wq with system_dfl_wq (Marco Crivellari)
 
 Proxy scheduling updates by John Stultz:
 
  - Make class_schedulers avoid pushing current, and get rid of proxy_tag_curr()
  - Minimise repeated sched_proxy_exec() checking
  - Fix potentially missing balancing with Proxy Exec
  - Fix and improve task::blocked_on et al handling
  - Add assert_balance_callbacks_empty() helper
  - Add logic to zap balancing callbacks if we pick again
  - Move attach_one_task() and attach_task() helpers to sched.h
  - Handle blocked-waiter migration (and return migration)
  - Add K Prateek Nayak to scheduler reviewers for proxy execution
 
 Misc cleanups and fixes by John Stultz, Joseph Salisbury,
 Peter Zijlstra, K Prateek Nayak, Michal Koutný, Randy Dunlap,
 Shrikanth Hegde, Vincent Guittot, Zhan Xusheng, Xie Yuanbin
 and Vincent Guittot.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Fair scheduling updates:
   - Skip SCHED_IDLE rq for SCHED_IDLE tasks (Christian Loehle)
   - Remove superfluous rcu_read_lock() in the wakeup path (K Prateek Nayak)
   - Simplify the entry condition for update_idle_cpu_scan() (K Prateek Nayak)
   - Simplify SIS_UTIL handling in select_idle_cpu() (K Prateek Nayak)
   - Avoid overflow in enqueue_entity() (K Prateek Nayak)
   - Update overutilized detection (Vincent Guittot)
   - Prevent negative lag increase during delayed dequeue (Vincent Guittot)
   - Clear buddies for preempt_short (Vincent Guittot)
   - Implement more complex proportional newidle balance (Peter Zijlstra)
   - Increase weight bits for avg_vruntime (Peter Zijlstra)
   - Use full weight to __calc_delta() (Peter Zijlstra)

  RT and DL scheduling updates:
   - Fix incorrect schedstats for rt and dl thread (Dengjun Su)
   - Skip group schedulable check with rt_group_sched=0 (Michal Koutný)
   - Move group schedulability check to sched_rt_global_validate()
     (Michal Koutný)
   - Add reporting of runtime left & abs deadline to sched_getattr()
     for DEADLINE tasks (Tommaso Cucinotta)

  Scheduling topology updates by K Prateek Nayak:
   - Compute sd_weight considering cpuset partitions
   - Extract "imb_numa_nr" calculation into a separate helper
   - Allocate per-CPU sched_domain_shared in s_data
   - Switch to assigning "sd->shared" from s_data
   - Remove sched_domain_shared allocation with sd_data

  Energy-aware scheduling updates:
   - Filter false overloaded_group case for EAS (Vincent Guittot)
   - PM: EM: Switch to rcu_dereference_all() in wakeup path
     (Dietmar Eggemann)

  Infrastructure updates:
   - Replace use of system_unbound_wq with system_dfl_wq (Marco Crivellari)

  Proxy scheduling updates by John Stultz:
   - Make class_schedulers avoid pushing current, and get rid of proxy_tag_curr()
   - Minimise repeated sched_proxy_exec() checking
   - Fix potentially missing balancing with Proxy Exec
   - Fix and improve task::blocked_on et al handling
   - Add assert_balance_callbacks_empty() helper
   - Add logic to zap balancing callbacks if we pick again
   - Move attach_one_task() and attach_task() helpers to sched.h
   - Handle blocked-waiter migration (and return migration)
   - Add K Prateek Nayak to scheduler reviewers for proxy execution

  Misc cleanups and fixes by John Stultz, Joseph Salisbury, Peter
  Zijlstra, K Prateek Nayak, Michal Koutný, Randy Dunlap, Shrikanth
  Hegde, Vincent Guittot, Zhan Xusheng, Xie Yuanbin and Vincent Guittot"

* tag 'sched-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  sched/eevdf: Clear buddies for preempt_short
  sched/rt: Cleanup global RT bandwidth functions
  sched/rt: Move group schedulability check to sched_rt_global_validate()
  sched/rt: Skip group schedulable check with rt_group_sched=0
  sched/fair: Avoid overflow in enqueue_entity()
  sched: Use u64 for bandwidth ratio calculations
  sched/fair: Prevent negative lag increase during delayed dequeue
  sched/fair: Use sched_energy_enabled()
  sched: Handle blocked-waiter migration (and return migration)
  sched: Move attach_one_task and attach_task helpers to sched.h
  sched: Add logic to zap balance callbacks if we pick again
  sched: Add assert_balance_callbacks_empty helper
  sched/locking: Add special p->blocked_on==PROXY_WAKING value for proxy return-migration
  sched: Fix modifying donor->blocked on without proper locking
  locking: Add task::blocked_lock to serialize blocked_on state
  sched: Fix potentially missing balancing with Proxy Exec
  sched: Minimise repeated sched_proxy_exec() checking
  sched: Make class_schedulers avoid pushing current, and get rid of proxy_tag_curr()
  MAINTAINERS: Add K Prateek Nayak to scheduler reviewers
  sched/core: Get this cpu once in ttwu_queue_cond()
  ...
2026-04-14 13:33:36 -07:00
Linus Torvalds 33c66eb5e9 Performance events changes for v7.1:
Core updates:
 
  - Try to allocate task_ctx_data quickly, to optimize
    O(N^2) algorithm on large systems with O(100k) threads
    (Namhyung Kim)
 
 AMD PMU driver IBS support updates and fixes, by Ravi Bangoria:
 
  - Fix interrupt accounting for discarded samples
  - Fix a Zen5-specific quirk
  - Fix PhyAddrVal handling
  - Fix NMI-safety with perf_allow_kernel()
  - Fix a race between event add and NMIs
 
 Intel PMU driver updates:
 
  - Only check GP counters for PEBS constraints validation (Dapeng Mi)
 
 MSR driver:
 
  - Turn SMI_COUNT and PPERF on by default, instead of a long
    list of CPU models to enable them on (Kan Liang)
 
 Misc cleanups and fixes by Aldf Conte, Anshuman Khandual, Namhyung Kim,
 Ravi Bangoria and Yen-Hsiang Hsu.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance events updates from Ingo Molnar:
 "Core updates:

   - Try to allocate task_ctx_data quickly, to optimize O(N^2) algorithm
     on large systems with O(100k) threads (Namhyung Kim)

  AMD PMU driver IBS support updates and fixes, by Ravi Bangoria:
   - Fix interrupt accounting for discarded samples
   - Fix a Zen5-specific quirk
   - Fix PhyAddrVal handling
   - Fix NMI-safety with perf_allow_kernel()
   - Fix a race between event add and NMIs

  Intel PMU driver updates:
   - Only check GP counters for PEBS constraints validation (Dapeng Mi)

  MSR driver:
   - Turn SMI_COUNT and PPERF on by default, instead of a long list of
     CPU models to enable them on (Kan Liang)

  ... and misc cleanups and fixes by Aldf Conte, Anshuman Khandual,
  Namhyung Kim, Ravi Bangoria and Yen-Hsiang Hsu"

* tag 'perf-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/events: Replace READ_ONCE() with standard pgtable accessors
  perf/x86/msr: Make SMI and PPERF on by default
  perf/x86/intel/p4: Fix unused variable warning in p4_pmu_init()
  perf/x86/intel: Only check GP counters for PEBS constraints validation
  perf/x86/amd/ibs: Fix comment typo in ibs_op_data
  perf/amd/ibs: Advertise remote socket capability
  perf/amd/ibs: Enable streaming store filter
  perf/amd/ibs: Enable RIP bit63 hardware filtering
  perf/amd/ibs: Enable fetch latency filtering
  perf/amd/ibs: Support IBS_{FETCH|OP}_CTL2[Dis] to eliminate RMW race
  perf/amd/ibs: Add new MSRs and CPUID bits definitions
  perf/amd/ibs: Define macro for ldlat mask and shift
  perf/amd/ibs: Avoid race between event add and NMI
  perf/amd/ibs: Avoid calling perf_allow_kernel() from the IBS NMI handler
  perf/amd/ibs: Preserve PhyAddrVal bit when clearing PhyAddr MSR
  perf/amd/ibs: Limit ldlat->l3missonly dependency to Zen5
  perf/amd/ibs: Account interrupt for discarded samples
  perf/core: Simplify __detach_global_ctx_data()
  perf/core: Try to allocate task_ctx_data quickly
  perf/core: Pass GFP flags to attach_task_ctx_data()
2026-04-14 13:22:40 -07:00
Linus Torvalds 4b2bdc2221 objtool updates for v7.1:
- KLP support updates and fixes (Song Liu)
 
  - KLP-build script updates and fixes (Joe Lawrence)
 
  - Support Clang RAX DRAP sequence, to address clang
    false positive (Josh Poimboeuf)
 
  - Reorder ORC register numbering to match regular x86
    register numbering (Josh Poimboeuf)
 
  - Misc cleanups (Wentong Tian, Song Liu)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:

 - KLP support updates and fixes (Song Liu)

 - KLP-build script updates and fixes (Joe Lawrence)

 - Support Clang RAX DRAP sequence, to address clang false positive
   (Josh Poimboeuf)

 - Reorder ORC register numbering to match regular x86 register
   numbering (Josh Poimboeuf)

 - Misc cleanups (Wentong Tian, Song Liu)

* tag 'objtool-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool/x86: Reorder ORC register numbering
  objtool: Support Clang RAX DRAP sequence
  livepatch/klp-build: report patch validation fuzz
  livepatch/klp-build: add terminal color output
  livepatch/klp-build: provide friendlier error messages
  livepatch/klp-build: improve short-circuit validation
  livepatch/klp-build: fix shellcheck complaints
  livepatch/klp-build: add Makefile with check target
  livepatch/klp-build: add grep-override function
  livepatch/klp-build: switch to GNU patch and recountdiff
  livepatch/klp-build: support patches that add/remove files
  objtool/klp: Correlate locals to globals
  objtool/klp: Match symbols based on demangled_name for global variables
  objtool/klp: Remove .llvm suffix in demangle_name()
  objtool/klp: Also demangle global objects
  objtool/klp: Use sym->demangled_name for symbol_name hash
  objtool/klp: Remove trailing '_' in demangle_name()
  objtool/klp: Remove redundant strcmp() in correlate_symbols()
  objtool: Use section/symbol type helpers
2026-04-14 13:00:04 -07:00
Linus Torvalds 7393febcb1 Locking updates for v7.1:
Mutexes:
 
  - Add killable flavor to guard definitions (Davidlohr Bueso)
  - Remove the list_head from struct mutex (Matthew Wilcox)
  - Rename mutex_init_lockep() (Davidlohr Bueso)
 
 rwsems:
 
  - Remove the list_head from struct rw_semaphore and
    replace it with a single pointer (Matthew Wilcox)
  - Fix logic error in rwsem_del_waiter() (Andrei Vagin)
 
 Semaphores:
 
  - Remove the list_head from struct semaphore (Matthew Wilcox)
 
 Jump labels:
 
  - Use ATOMIC_INIT() for initialization of .enabled (Thomas Weißschuh)
  - Remove workaround for old compilers in initializations
    (Thomas Weißschuh)
 
 Lock context analysis changes and improvements:
 
  - Add context analysis for rwsems (Peter Zijlstra)
  - Fix rwlock and spinlock lock context annotations (Bart Van Assche)
  - Fix rwlock support in <linux/spinlock_up.h> (Bart Van Assche)
  - Add lock context annotations in the spinlock implementation
    (Bart Van Assche)
  - signal: Fix the lock_task_sighand() annotation (Bart Van Assche)
  - ww-mutex: Fix the ww_acquire_ctx function annotations
    (Bart Van Assche)
  - Add lock context support in do_raw_{read,write}_trylock()
    (Bart Van Assche)
  - arm64, compiler-context-analysis: Permit alias analysis through
    __READ_ONCE() with CONFIG_LTO=y (Marco Elver)
  - Add __cond_releases() (Peter Zijlstra)
  - Add context analysis for mutexes (Peter Zijlstra)
  - Add context analysis for rtmutexes (Peter Zijlstra)
  - Convert futexes to compiler context analysis (Peter Zijlstra)
 
 Rust integration updates:
 
  - Add atomic fetch_sub() implementation (Andreas Hindborg)
  - Refactor various rust_helper_ methods for expansion (Boqun Feng)
  - Add Atomic<*{mut,const} T> support (Boqun Feng)
  - Add atomic operation helpers over raw pointers (Boqun Feng)
  - Add performance-optimal Flag type for atomic booleans, to avoid
    slow byte-sized RMWs on architectures that don't support them.
    (FUJITA Tomonori)
  - Misc cleanups and fixes (Andreas Hindborg, Boqun Feng,
    FUJITA Tomonori)
 
 LTO support updates:
 
  - arm64: Optimize __READ_ONCE() with CONFIG_LTO=y (Marco Elver)
  - compiler: Simplify generic RELOC_HIDE() (Marco Elver)
 
 Miscellaneous fixes and cleanups by Peter Zijlstra, Randy Dunlap,
 Thomas Weißschuh, Davidlohr Bueso and Mikhail Gavrilov.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "Mutexes:

   - Add killable flavor to guard definitions (Davidlohr Bueso)

   - Remove the list_head from struct mutex (Matthew Wilcox)

   - Rename mutex_init_lockep() (Davidlohr Bueso)

  rwsems:

   - Remove the list_head from struct rw_semaphore and
     replace it with a single pointer (Matthew Wilcox)

   - Fix logic error in rwsem_del_waiter() (Andrei Vagin)

  Semaphores:

   - Remove the list_head from struct semaphore (Matthew Wilcox)

  Jump labels:

   - Use ATOMIC_INIT() for initialization of .enabled (Thomas Weißschuh)

   - Remove workaround for old compilers in initializations
     (Thomas Weißschuh)

  Lock context analysis changes and improvements:

   - Add context analysis for rwsems (Peter Zijlstra)

   - Fix rwlock and spinlock lock context annotations (Bart Van Assche)

   - Fix rwlock support in <linux/spinlock_up.h> (Bart Van Assche)

   - Add lock context annotations in the spinlock implementation
     (Bart Van Assche)

   - signal: Fix the lock_task_sighand() annotation (Bart Van Assche)

   - ww-mutex: Fix the ww_acquire_ctx function annotations
     (Bart Van Assche)

   - Add lock context support in do_raw_{read,write}_trylock()
     (Bart Van Assche)

   - arm64, compiler-context-analysis: Permit alias analysis through
     __READ_ONCE() with CONFIG_LTO=y (Marco Elver)

   - Add __cond_releases() (Peter Zijlstra)

   - Add context analysis for mutexes (Peter Zijlstra)

   - Add context analysis for rtmutexes (Peter Zijlstra)

   - Convert futexes to compiler context analysis (Peter Zijlstra)

  Rust integration updates:

   - Add atomic fetch_sub() implementation (Andreas Hindborg)

   - Refactor various rust_helper_ methods for expansion (Boqun Feng)

   - Add Atomic<*{mut,const} T> support (Boqun Feng)

   - Add atomic operation helpers over raw pointers (Boqun Feng)

   - Add performance-optimal Flag type for atomic booleans, to avoid
     slow byte-sized RMWs on architectures that don't support them.
     (FUJITA Tomonori)

   - Misc cleanups and fixes (Andreas Hindborg, Boqun Feng, FUJITA
     Tomonori)

  LTO support updates:

   - arm64: Optimize __READ_ONCE() with CONFIG_LTO=y (Marco Elver)

   - compiler: Simplify generic RELOC_HIDE() (Marco Elver)

  Miscellaneous fixes and cleanups by Peter Zijlstra, Randy Dunlap,
  Thomas Weißschuh, Davidlohr Bueso and Mikhail Gavrilov"

* tag 'locking-core-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
  compiler: Simplify generic RELOC_HIDE()
  locking: Add lock context annotations in the spinlock implementation
  locking: Add lock context support in do_raw_{read,write}_trylock()
  locking: Fix rwlock support in <linux/spinlock_up.h>
  lockdep: Raise default stack trace limits when KASAN is enabled
  cleanup: Optimize guards
  jump_label: remove workaround for old compilers in initializations
  jump_label: use ATOMIC_INIT() for initialization of .enabled
  futex: Convert to compiler context analysis
  locking/rwsem: Fix logic error in rwsem_del_waiter()
  locking/rwsem: Add context analysis
  locking/rtmutex: Add context analysis
  locking/mutex: Add context analysis
  compiler-context-analysys: Add __cond_releases()
  locking/mutex: Remove the list_head from struct mutex
  locking/semaphore: Remove the list_head from struct semaphore
  locking/rwsem: Remove the list_head from struct rw_semaphore
  rust: atomic: Update a safety comment in impl of `fetch_add()`
  rust: sync: atomic: Update documentation for `fetch_add()`
  rust: sync: atomic: Add fetch_sub()
  ...
2026-04-14 12:36:25 -07:00