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85,943 commits

Author SHA1 Message Date
Kiryl Shutsemau (Meta)
3389648819 mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
PAGEMAP_SCAN already reports PAGE_IS_WRITTEN from the inverted uffd PTE
bit, targeting the UFFDIO_WRITEPROTECT workflow.  UFFDIO_RWPROTECT reuses
the same PTE bit as a marker for read-write protection, but "has been
written" and "has been accessed" are distinct semantic signals — they
happen to share one PTE bit today only because the two implementations
share infrastructure.

Give RWP its own pagemap category so the UAPI does not conflate them:

  PAGE_IS_WRITTEN   reported on VM_UFFD_WP VMAs,  !pte_uffd(pte)
  PAGE_IS_ACCESSED  reported on VM_UFFD_RWP VMAs, !pte_uffd(pte)

Both still read the same PTE bit today, but each is scoped to the VMA
whose registered mode makes the bit meaningful.  If a future
implementation moves RWP to a separate PTE bit, only PAGE_IS_ACCESSED
switches over.

This is a UAPI narrowing.  Outside VM_UFFD_WP VMAs the uffd bit is always
clear, so PAGEMAP_SCAN used to flag PAGE_IS_WRITTEN on every present PTE
there — a meaningless duplicate of PAGE_IS_PRESENT.  Now PAGE_IS_WRITTEN
fires only inside VM_UFFD_WP VMAs.

pagemap_hugetlb_category() now takes the vma like its PTE/PMD peers.

Link: https://lore.kernel.org/20260708111417.173443-12-kirill@shutemov.name
Signed-off-by: Kiryl Shutsemau <kas@kernel.org>
Assisted-by: Claude:claude-opus-4-6
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: James Houghton <jthoughton@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-04 19:18:38 -07:00
Kiryl Shutsemau (Meta)
6eab8f2cc6 userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing
Add the userspace interface for read-write protection tracking:

  - UFFDIO_REGISTER_MODE_RWP      register a range for RWP tracking
  - UFFD_FEATURE_RWP              capability bit
  - UFFDIO_RWPROTECT              install / remove RWP on a range

Introduce CONFIG_USERFAULTFD_RWP, auto-selected on 64-bit kernels with
ARCH_HAS_PTE_PROTNONE and HAVE_ARCH_USERFAULTFD_WP.  The symbol gates
VM_UFFD_RWP (previously aliased to VM_NONE) and the smaps/trace-flag hooks
added in the preparatory patches; without it the UAPI bits added here have
nothing to drive and would be unreachable.

Registration sets VM_UFFD_RWP on the VMA.  Combining MODE_WP with MODE_RWP
is rejected because both modes claim the uffd PTE bit.

UFFDIO_RWPROTECT is the bidirectional counterpart of
UFFDIO_WRITEPROTECT:

  - MODE_RWP              change_protection() with MM_CP_UFFD_RWP
                          installs PAGE_NONE and sets the uffd bit on
                          present PTEs
  - !MODE_RWP             change_protection() with MM_CP_UFFD_RWP_RESOLVE
                          restores vma->vm_page_prot and clears the bit

userfaultfd_clear_vma() runs the same resolve pass on unregister so RWP
state cannot outlive the uffd.

Re-registering a range must not drop a mode that installs per-PTE markers
(WP or RWP); doing so returns -EBUSY.  This also closes a pre-existing
window where re-registering without MODE_WP would strand uffd-wp markers:
before, those caused extra write-faults but were otherwise benign; with
RWP preservation in place, a subsequent mprotect() on a VM_UFFD_RWP VMA
would silently promote the stale markers to RWP.

The feature is not yet advertised.  UFFDIO_REGISTER_MODE_RWP,
UFFD_FEATURE_RWP, and _UFFDIO_RWPROTECT are intentionally absent from
UFFD_API_REGISTER_MODES, UFFD_API_FEATURES, and UFFD_API_RANGE_IOCTLS, so
UFFDIO_API masks them out and the register-mode validator rejects the bit.
The follow-up patch adds fault dispatch and exposes the UAPI.

Link: https://lore.kernel.org/20260708111417.173443-10-kirill@shutemov.name
Signed-off-by: Kiryl Shutsemau <kas@kernel.org>
Assisted-by: Claude:claude-opus-4-6
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: James Houghton <jthoughton@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-04 19:18:38 -07:00
Kiryl Shutsemau (Meta)
134c1d031a mm: add VM_UFFD_RWP VMA flag
Preparatory patch for userfaultfd read-write protection (RWP).  RWP
extends userfaultfd protection from plain write-protection (WP) to full
read-write protection: accesses to an RWP-protected range -- reads as well
as writes -- trap through userfaultfd.

Reserve VM_UFFD_RWP, add the userfaultfd_rwp() and userfaultfd_protected()
helpers, and wire up the smaps "ur" entry and the trace-flag table the
rest of the series will use.  The flag is gated on CONFIG_USERFAULTFD_RWP,
which is introduced together with the UAPI in a later patch; until then
VM_UFFD_RWP aliases VM_NONE and every downstream check folds to dead code.

Nothing sets or queries the flag yet.

Link: https://lore.kernel.org/20260708111417.173443-6-kirill@shutemov.name
Signed-off-by: Kiryl Shutsemau <kas@kernel.org>
Assisted-by: Claude:claude-opus-4-6
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: James Houghton <jthoughton@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam@infradead.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-04 19:18:37 -07:00
Jianyue Wu
0ba14428ab mm: rename swap.c to folio.c
Rename mm/swap.c to mm/folio.c so the filename better matches the code's
main responsibility.

This keeps the implementation split from swap-specific code without
changing the published LRU helper interfaces.

Update MAINTAINERS and the remaining mm/swap.c documentation references
after the rename.

[wujianyue000@gmail.com: MAINTAINERS: move mm/folio.c to MM CORE]
  Link: https://lore.kernel.org/20260804111109.393127-1-wujianyue000@gmail.com
Link: https://lore.kernel.org/20260708-ch-swap-series-plus-folio-lru-cleanup-v9-2-2bc72b4f8730@gmail.com
Signed-off-by: Jianyue Wu <wujianyue000@gmail.com>
Suggested-by: Baoquan He <bhe@redhat.com>
Suggested-by: David Hildenbrand <david@kernel.org>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-04 19:18:35 -07:00
Breno Leitao
97b03277ce Documentation: document panic_on_unrecoverable_memory_failure sysctl
Add documentation for the new vm.panic_on_unrecoverable_memory_failure
sysctl, describing which failures trigger a panic (kernel-owned pages the
handler cannot recover) and which are intentionally left out (transient
allocator races and unclassified pages).

Link: https://lore.kernel.org/20260630-ecc_panic-v10-5-c6ed5b62eea2@debian.org
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: David Hildenbrand (Arm) <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-04 19:18:28 -07:00
Arukonda Rahul
a398265301 docs: ABI: zram: fix spelling mistakes
Fix spelling mistakes in the zram sysfs ABI documentation.

Link: https://lore.kernel.org/20260707165131.4408-1-rahularukonda2@gmail.com
Signed-off-by: Arukonda Rahul <rahularukonda2@gmail.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Richard Chang <richardycc@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-30 19:40:46 -07:00
Brendan Jackman
a4f6c0f83d mm: move __alloc_pages() to mm/page_alloc.h
It's no longer used outside of mm/.

Since this means __alloc_pages_noprof() is no longer visible from gfp.h,
this also means moving the definition of alloc_pages_node_noprof into
the .c file.

Also remove references to this API from the documentation tree -
referring to the specific function name was already questionable but
now the function is not even public it definitely seems wrong.

Link: https://lore.kernel.org/20260703-alloc-trylock-v5-14-c87b714e19d3@google.com
Signed-off-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-30 19:40:43 -07:00
SJ Park
fb6e06631d Docs/ABI/damon: document probe files
DAMON ABI document is not updated for the DAMON probe sysfs files. 
Update.

Link: https://lore.kernel.org/20260630141726.92246-3-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-30 19:40:25 -07:00
SJ Park
6eceb61256 Docs/mm/damon/design: update for DAMOS_QUOTA_NODE_ELIGIBLE_MEM_BP
Patch series "mm/damon: update, optimize, and clean up doc, tests, and
code".

Patches 1 and 2 update the design and ABI documents for recently added
DAMON features.  Patches 3-7 add or update more unit and self tests for
DAMON to cover recently changed or added functions and sysfs files.  Patch
8 optimizes damon_commit_target_regions() to skip unnecessary adjacent
ranges setup.  Patches 9-11 clean and fix up recently added DAMON sysfs
interface code for readability.


This patch (of 11):

Commit 9138e27a3b ("mm/damon: add node_eligible_mem_bp goal metric")
introduced DAMOS_QUOTA_NODE_ELIGIBLE_MEM_BP but forgot updating the DAMON
design document for that.  Update.

Link: https://lore.kernel.org/20260630141726.92246-1-sj@kernel.org
Link: https://lore.kernel.org/20260630141726.92246-2-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-30 19:40:25 -07:00
Doehyun Baek
914a458277 Docs/{admin-guide,mm}/damon: fix DAMON documentation details
Fix minor DAMON documentation issues.  Correct the sysfs scheme file name
apply_interval_us, the DAMON_STAT module count, a malformed reference, a
misplaced label indentation, and a few typos.

Link: https://lore.kernel.org/20260629145538.134832-4-sj@kernel.org
Signed-off-by: Doehyun Baek <doehyunbaek@gmail.com>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Liam R. Howlett" <liam@infradead.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Asier Gutierrez <gutierrez.asier@huawei-partners.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: Philippe Laferriere <plafer@proton.me>
Cc: Sailesh Nandanavanam <saileshnandanavanam@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-30 19:40:22 -07:00
Matthew Wilcox (Oracle)
b55cc244d0 percpu_ref: fix documentation of maximum value
Tejun changd percpu_ref to use long instead of int back in 2014 but missed
updating this bit of the documentation.  Also add the documentation to the
htmldocs.

Link: https://lore.kernel.org/20241211204017.184512-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-28 21:11:55 -07:00
Matthew Wilcox (Oracle)
eafe0dcdc0 mm: add writeback.h to docs build
There's four functions in this header file with kernel-doc; add them to
the htmldocs.

Link: https://lore.kernel.org/20260615162244.2170866-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-28 21:11:55 -07:00
Zhen Ni
e2c75342c2 mm/page_owner: document page_owner filter
Add documentation for the page_owner_filter userspace tool and
kernel-level filtering features.

[rdunlap@infradead.org: avoid docs build warning]
  Link: https://lore.kernel.org/20260708213548.469155-1-rdunlap@infradead.org
Link: https://lore.kernel.org/20260707115411.1714314-5-zhen.ni@easystack.cn
Signed-off-by: Zhen Ni <zhen.ni@easystack.cn>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-28 21:11:54 -07:00
Linus Torvalds
72841e8e83 spi: Fixes for v7.2
Just a couple of small bits for the SpacemiT driver - one small fix, and
 a new compatible in the DT binding.
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Merge tag 'spi-fix-v7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "Just a couple of small bits for the SpacemiT driver - one small fix,
  and a new compatible in the DT binding"

* tag 'spi-fix-v7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: dt-bindings: spacemit: add K3 SPI compatible
  spi: spacemit: Correct TX FIFO slot calculation
2026-07-26 12:13:42 -07:00
Linus Torvalds
d326f83e81 Lots of fixes, double the count even for the "new normal".
Largely due to my time off followed by a networking conference
 which distracted most maintainers (less so the AI generators).
 
 Including fixes from Bluetooth and WiFi.
 
 Current release - regressions:
 
  - wifi: mt76: fix MAC address for non OF pcie cards
 
 Current release - new code bugs:
 
  - mptcp: fix BUILD_BUG_ON on legacy ARM config
 
  - wifi: cfg80211: guard optional PMSR nominal time
 
 Previous releases - regressions:
 
  - qrtr: ns: raise node count limit to 512, we arbitrarily picked
    256 as a limit, turns out it was too low for real world deployments
 
  - vhost-net: fix TX stall when vhost owns virtio-net header
 
  - eth: amd-xgbe: fix MAC_AUTO_SW handling in CL37 AN
 
  - wifi: ath12k: fix low MLO RX throughput on WCN7850
 
 Previous releases - always broken:
 
  - number of random AI fixes for SCTP, RDS and TIPC protocols
 
  - more AI-looking fixes for WiFi drivers
 
  - number of fixes for missing pointer reloading after skb pull
 
  - reject BPF redirect use from qdisc qevent block
 
  - tcp: initialize standalone TCP-AO response padding
 
  - vsock/virtio: collapse receive queue under memory pressure to avoid
    client OOMing the host with tiny messages
 
  - ipv4: icmp: fill flow parameters in icmp_route_lookup decoy lookup,
    make sure the ICMP response routing follows the routing policy
 
  - gro: fix double aggregation of flush-marked skbs
 
  - ovpn: fix various refcount bugs
 
  - tls: device: push pending open record on splice EOF
 
  - eth: mlx5:
   - use sender devcom for MPV master-up
   - fix MCIA register buffer overflow on 32 dword reads
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Lots of fixes, double the count even for the 'new normal'. Largely due
  to my time off followed by a networking conference which distracted
  most maintainers (less so the AI generators).

  Including fixes from Bluetooth and WiFi.

  Current release - regressions:

   - wifi: mt76: fix MAC address for non OF pcie cards

  Current release - new code bugs:

   - mptcp: fix BUILD_BUG_ON on legacy ARM config

   - wifi: cfg80211: guard optional PMSR nominal time

  Previous releases - regressions:

   - qrtr: ns: raise node count limit to 512, we arbitrarily picked
     256 as a limit, turns out it was too low for real world deployments

   - vhost-net: fix TX stall when vhost owns virtio-net header

   - eth: amd-xgbe: fix MAC_AUTO_SW handling in CL37 AN

   - wifi: ath12k: fix low MLO RX throughput on WCN7850

  Previous releases - always broken:

   - number of random AI fixes for SCTP, RDS and TIPC protocols

   - more AI-looking fixes for WiFi drivers

   - number of fixes for missing pointer reloading after skb pull

   - reject BPF redirect use from qdisc qevent block

   - tcp: initialize standalone TCP-AO response padding

   - vsock/virtio: collapse receive queue under memory pressure to avoid
     client OOMing the host with tiny messages

   - ipv4: icmp: fill flow parameters in icmp_route_lookup decoy lookup,
     make sure the ICMP response routing follows the routing policy

   - gro: fix double aggregation of flush-marked skbs

   - ovpn: fix various refcount bugs

   - tls: device: push pending open record on splice EOF

   - eth: mlx5:
      - use sender devcom for MPV master-up
      - fix MCIA register buffer overflow on 32 dword reads"

* tag 'net-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (234 commits)
  drop_monitor: perform u64_stats updates under IRQ-disabled section
  drop_monitor: fix size calculations for 64-bit attributes
  net: drop_monitor: fix info leak in NET_DM_ATTR_PAYLOAD
  mptcp: fix BUILD_BUG_ON on legacy ARM config
  selftests: mptcp: userspace_pm: fix undefined variable port
  mptcp: fix stale skb->sk reference on subflow close
  mptcp: pm: userspace: fix use-after-free in get_local_id
  mptcp: decrement subflows counter on failed passive join
  mac802154: hold an interface reference across the scan worker
  sctp: don't free the ASCONF's own transport in DEL-IP processing
  phonet: check register_netdevice_notifier() error in phonet_device_init()
  phonet: pep: fix use-after-free in pep_get_sb()
  bnge/bng_re: fix ring ID widths
  tipc: fix integer overflow in tipc_recvmsg() and tipc_recvstream()
  net: airoha: fix ETS channel derivation in airoha_tc_setup_qdisc_ets()
  mctp: check register_netdevice_notifier() error in mctp_device_init()
  ptp: netc: explicitly clear TMR_OFF during initialization
  rds: tcp: unregister sysctl before tearing down listen socket
  ipv6: Change allocation flags to match rcu_read_lock section requirements
  net: slip: serialize receive against buffer reallocation
  ...
2026-07-23 12:58:08 -07:00
Linus Torvalds
08de7d9d24 watchdog fixes for v7.2-rc5
Notable fixes:
 
 - airoha: Prevent division by zero when clock frequency is zero
 
 - core: pretimeout: Fix UAF in watchdog_unregister_governor()
 
 - ni903x_wdt: Check ACPI_COMPANION() against NULL
 
 - s32g_wdt: remove incorrect options in watchdog_info struct
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Merge tag 'watchdog-for-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull watchdog fixes from Guenter Roeck:

 - airoha: Prevent division by zero when clock frequency is zero

 - core: pretimeout: Fix UAF in watchdog_unregister_governor()

 - ni903x_wdt: Check ACPI_COMPANION() against NULL

 - s32g_wdt: remove incorrect options in watchdog_info struct

* tag 'watchdog-for-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  watchdog: airoha: Prevent division by zero when clock frequency is zero
  watchdog: pretimeout: Fix UAF in watchdog_unregister_governor()
  docs: watchdog: Fix brackets
  watchdog: ni903x_wdt: Check ACPI_COMPANION() against NULL
  watchdog: s32g_wdt: remove incorrect options in watchdog_info struct
2026-07-22 11:15:49 -07:00
Zhengyu He
6389eaf11d
spi: dt-bindings: spacemit: add K3 SPI compatible
The K3 SPI controller is compatible with K1, so allow K3 device trees to
use "spacemit,k1-spi" as fallback.

Signed-off-by: Cody Kang <cody.kang.hk@outlook.com>
Signed-off-by: Zhengyu He <hezhy472013@gmail.com>
Link: https://patch.msgid.link/20260717-k3-com260-spi-v7-2-rc2-b4-preview-20260716-v1-2-969a1b0f783f@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-21 22:39:30 +01:00
Danielle Ratson
f6e3b21608 netlink: specs: rt-link: convert bridge port flag attributes to u8
A number of IFLA_BRPORT_* attributes are documented in the rt-link spec
as having the "flag" type, i.e. a payload-less NLA_FLAG attribute whose
meaning is presence-only. This does not match the kernel, which emits
these attributes with nla_put_u8() and validates them as NLA_U8 in
br_port_policy[]. The values are not mere presence flags but carry a u8
payload (0/1).

Convert these bridge port attributes from "flag" to "u8" so the spec
reflects the actual wire format.

Fixes: 077b6022d2 ("doc/netlink/specs: Add sub-message type to rt_link family")
Reviewed-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Link: https://patch.msgid.link/a57cdfcfc4a6dcb92106c25b4dde5059fde2bd44.1783236731.git.danieller@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-20 18:14:42 -07:00
Linus Torvalds
b95f03f04d 12 hotfixes. 8 are cc:stable and the remainder address post-7.1 issues or
aren't considered appropriate for backporting.  10 are for MM.
 
 All are singletons - please see the relevant changelogs for details.
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Merge tag 'mm-hotfixes-stable-2026-07-20-11-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "12 hotfixes. 8 are cc:stable and the remainder address post-7.1 issues
  or aren't considered appropriate for backporting. 10 are for MM.

  All are singletons - please see the relevant changelogs for details"

* tag 'mm-hotfixes-stable-2026-07-20-11-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/memory-failure: trace: change memory_failure_event to ras subsystem
  mm: page_reporting: allow driver to set batch capacity
  mm/kmemleak: fix checksum computation for per-cpu objects
  mm/damon/core: disallow overlapping input ranges for damon_set_regions()
  MAINTAINERS: add Usama as a THP reviewer
  fat: avoid stack overflow warning
  mm/damon/core: validate ranges in damon_set_regions()
  m68k: avoid -Wunused-but-set-parameter in clear_user_page()
  mm/huge_memory: set PG_has_hwpoisoned only after new folio head is established
  mm/page_vma_mapped: fix device-private PMD handling
  MAINTAINERS: s/SeongJae/SJ/
  userfaultfd: prevent registration of special VMAs
2026-07-20 13:04:47 -07:00
Linus Torvalds
0dde292a4c Crypto library fixes for v7.2-rc4
- Fix a build error in certain configurations
 
 - Clarify some parts of the documentation
 
 - Remove unused code that I forgot to remove in commit cf52058dcd
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull crypto library fixes from Eric Biggers:

 - Fix a build error in certain configurations

 - Clarify some parts of the documentation

 - Remove unused code that I forgot to remove in commit cf52058dcd
   ("lib/crypto: powerpc/md5: Drop powerpc optimized MD5 code")

* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  crypto: aes - Fix conditions for selecting MAC dependencies
  lib/crypto: docs: Improve introduction sentence
  lib/crypto: docs: Fix some sentence fragments
  lib/crypto: md5: Remove support for md5_mod_init_arch()
2026-07-17 10:53:57 -07:00
Linus Torvalds
45419d06c9 MMC core:
- Fix RPMB device unregister ordering
  - Fix __counted_by handling in mmc_test
 
 MMC host:
  - mtk-sd: Document missing clocks for MT8189
  - sdhci-esdhc-imx: Fix the support for system suspend/resume for SDIO
  - sdhci-of-dwcmshc: Fix error handling for clock prepare/enable
  - vub300: Fix lockdep issue for the cmd_mutex
  - vub300: Fix use-after-free on probe failure
 
 MEMSTICK:
  - Reject a card that reports too many blocks
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Merge tag 'mmc-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Fix RPMB device unregister ordering
   - Fix __counted_by handling in mmc_test

  MMC host:
   - mtk-sd: Document missing clocks for MT8189
   - sdhci-esdhc-imx: Fix the support for system suspend/resume for SDIO
   - sdhci-of-dwcmshc: Fix error handling for clock prepare/enable
   - vub300:
       - Fix lockdep issue for the cmd_mutex
       - Fix use-after-free on probe failure

  MEMSTICK:
   - Reject a card that reports too many blocks"

* tag 'mmc-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-esdhc-imx: fix resume error handling
  mmc: sdhci-esdhc-imx: make non-fatal errors non-blocking in suspend
  mmc: sdhci-esdhc-imx: use pm_runtime_resume_and_get() in suspend
  mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt
  mmc: sdhci-esdhc-imx: restore pinctrl before restoring ios timing on resume
  mmc: sdhci-esdhc-imx: fix esdhc_change_pinstate() to allow default state restore
  mmc: sdhci-esdhc-imx: restore DLL override for DDR modes on resume
  mmc: sdhci-esdhc-imx: remove unnecessary mmc_card_wake_sdio_irq check for tuning save/restore
  mmc: block: fix RPMB device unregister ordering
  memstick: ms_block: reject a card that reports too many blocks
  dt-bindings: mmc: mtk-sd: Document extra clocks for MT8189
  mmc: vub300: defer reset until cmd_mutex is unlocked
  mmc: vub300: fix use-after-free on probe failure
  mmc: mmc_test: Fix __counted_by handling after kzalloc_flex() conversion
  mmc: sdhci-of-dwcmshc: check bus clock enable result in the probe() method
2026-07-17 09:27:02 -07:00
Linus Torvalds
58717b2a13 A collection of small fixes. All are device-specific fixes (including
regression fixes) or quirks accumulated since the last update.
 Some highlights:
 
 * USB-audio:
 - Fix per-channel volume imbalance regression for sticky mixers
 - Validate input packet length in caiaq driver
 - Quirks for iBasso DC-Elite, Musical Fidelity M6s DAC, and Redragon
   H510-PRO Wireless headset
 
 * HD-audio:
 - Fix a long-standing bug of cached processing coefficient verbs
 - Make cs35l56 driver failing with missing firmware
 - Fix cirrus codec Kconfig dependency, update MAINTAINERS
 - Remove unneeded mic bias threshold override on Conexant
 - Realtek codec quirks for ASUS ROG Ally X (headphone & mic), Dell
   QCM1255, Legion Pro 7, HP/Victus laptops, Framework, and TongFang
   laptops
 
 * ASoC:
 - Add Eliza audio support on Qualcomm sc8280xp/sm8250 SoCs
 - Fix SDCA linker error with ACP on AMD
 - A few fixes for AMD ACP PCI driver
 - Add TAS2783 support on AMD ACP 7.0 platforms
 - Reset RT712-SDCA codec to fix silent headphone issue
 - Soft reset S/PDIF datapath on Meson AIU FIFO
 - Jack report fix for cs42l43
 - TAS2562 shutdown GPIO clearing fix
 - Sidecar amps quirk for Lenovo laptop in SOF SDW driver
 
 * Misc:
 - Drop redundant mod_devicetable.h includes from FireWire drivers
 - Fix memory leak and format mismatch in mixer kselftest
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Merge tag 'sound-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes. All are device-specific fixes (including
  regression fixes) or quirks accumulated since the last update. Some
  highlights:

  USB-audio:
   - Fix per-channel volume imbalance regression for sticky mixers
   - Validate input packet length in caiaq driver
   - Quirks for iBasso DC-Elite, Musical Fidelity M6s DAC, and Redragon
     H510-PRO Wireless headset

  HD-audio:
   - Fix a long-standing bug of cached processing coefficient verbs
   - Make cs35l56 driver failing with missing firmware
   - Fix cirrus codec Kconfig dependency, update MAINTAINERS
   - Remove unneeded mic bias threshold override on Conexant
   - Realtek codec quirks for ASUS ROG Ally X (headphone & mic), Dell
     QCM1255, Legion Pro 7, HP/Victus laptops, Framework, and TongFang
     laptops

  ASoC:
   - Add Eliza audio support on Qualcomm sc8280xp/sm8250 SoCs
   - Fix SDCA linker error with ACP on AMD
   - A few fixes for AMD ACP PCI driver
   - Add TAS2783 support on AMD ACP 7.0 platforms
   - Reset RT712-SDCA codec to fix silent headphone issue
   - Soft reset S/PDIF datapath on Meson AIU FIFO
   - Jack report fix for cs42l43
   - TAS2562 shutdown GPIO clearing fix
   - Sidecar amps quirk for Lenovo laptop in SOF SDW driver

  Misc:
   - Drop redundant mod_devicetable.h includes from FireWire drivers
   - Fix memory leak and format mismatch in mixer kselftest"

* tag 'sound-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (36 commits)
  ALSA: usb-audio: Add delay quirk for iBasso DC-Elite
  ALSA: hda: conexant: Remove mic bias threshold override
  ALSA: hda/realtek: Fix speakers on Legion Pro 7 16ARX8H with codec SSID 17aa:38a7
  ALSA: hda/realtek: Fix speakers on MECHREVO WUJIE Series
  ALSA: hda: cs35l56: Fail if wmfw file is missing
  ALSA: usb-audio: Skip DSD quirk for Musical Fidelity M6s DAC
  ALSA: hda: MAINTAINERS: Fix missing cirrus* file reference
  ALSA: hda/cirrus_scodec: Make Kconfig visible if KUNIT
  ALSA: hda/realtek: Add quirk for TongFang X6xx45xU
  ALSA: hda/realtek - Fixed Headphone noise issue for Dell QCM1255
  ASoC: tas2562: fix deprecated 'shut-down' GPIO always cleared after lookup
  ASoC: cs42l43: Correct report for forced microphone jack
  ASoC: qcom: sc8280xp: Add support for Eliza
  ASoC: dt-bindings: qcom,sm8250: Add Eliza sound card
  ASoC: dt-bindings: qcom: Add Eliza LPASS macro codecs
  ALSA: hda/realtek: Add mic mute LED quirk for HP Laptop 15-fd0xxx
  ALSA: hda/realtek - Add quirk for HP Victus 15-fa0xxx (MB 8A50)
  ALSA: usb-audio: Add quirk for Redragon H510-PRO Wireless headset
  ASoC: amd: ps: replace bitwise OR with logical OR in IRQ return check
  ASoC: amd: ps: fix wrong ACP version string in pci_request_regions()
  ...
2026-07-14 09:18:19 -07:00
Linus Torvalds
3b029c035b cgroup: Fixes for v7.2-rc3
- A cpuset that never set its memory nodes could divide by zero when a
   task's mempolicy rebinds on CPU hotplug. Rebind against the effective
   nodes, which are always populated.
 
 - Documentation fixes for memory.stat, io.stat, and the misc and v1 RDMA
   controllers.
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Merge tag 'cgroup-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:

 - A cpuset that never set its memory nodes could divide by zero when a
   task's mempolicy rebinds on CPU hotplug. Rebind against the effective
   nodes, which are always populated

 - Documentation fixes for memory.stat, io.stat, and the misc and v1
   RDMA controllers

* tag 'cgroup-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  Docs/admin-guide/cgroup-v2: note blkcg_debug_stats gates io.latency stats
  Docs/admin-guide/cgroup-v1: document rdma.peak, rdma.events and rdma.events.local
  Docs/admin-guide/cgroup-v2: drop stale misc interface file count
  cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed
  Docs/admin-guide/cgroup-v2: fix memory.stat doc details
2026-07-13 16:14:06 -07:00
Linus Torvalds
f7574d3f90 sched_ext: Fixes for v7.2-rc3
- Lifecycle fixes for the new sub-scheduler support: two use-after-frees
   and an enable-failure path that left a half-initialized sub-scheduler
   linked.
 
 - Two dispatch-path locking bugs: a spurious scheduler abort from a
   migration race, and a lockdep splat from stale runqueue-lock tracking.
 
 - Callback and task-state fixes: stale scheduler-owned state on a task
   leaving SCX, a weight callback running after disable, and a bogus
   warning on core-scheduling forced idle.
 
 - On nohz_full, finite-slice tasks could miss the tick that expires their
   slice. Enable it when such a task is picked, with a selftest.
 
 - Smaller fixes: userspace CPU-mask helpers, ratelimited deprecation
   warnings, docs and a sparse annotation.
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Merge tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Lifecycle fixes for the new sub-scheduler support: two
   use-after-frees and an enable-failure path that left a
   half-initialized sub-scheduler linked.

 - Two dispatch-path locking bugs: a spurious scheduler abort from a
   migration race, and a lockdep splat from stale runqueue-lock
   tracking.

 - Callback and task-state fixes: stale scheduler-owned state on a task
   leaving SCX, a weight callback running after disable, and a bogus
   warning on core-scheduling forced idle.

 - On nohz_full, finite-slice tasks could miss the tick that expires
   their slice. Enable it when such a task is picked, with a selftest.

 - Smaller fixes: userspace CPU-mask helpers, ratelimited deprecation
   warnings, docs and a sparse annotation.

* tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Skip ops.set_weight() for disabled tasks
  tools/sched_ext: scx - Fix cmask_subset(), cmask_equal() and cmask_weight()
  sched_ext: Fix premature ops->priv publication in scx_alloc_and_add_sched()
  sched_ext: Record an error on errno-only sub-enable failure
  selftests/sched_ext: Verify nohz_full tick behavior
  sched_ext: Enable tick for finite slices on nohz_full
  sched_ext: Preserve rq tracking across local DSQ dispatch
  sched_ext: Documentation: Fix ops table header reference
  sched_ext: Don't warn on core-sched forced idle in put_prev_task_scx()
  sched_ext: Pin parent scx_sched across a child sub-scheduler's lifetime
  sched_ext: Annotate ksyncs with __rcu in alloc/free_kick_syncs()
  sched_ext: Check remote rq eligibility under task's rq lock
  sched_ext: Reset dsq_vtime and slice when a task leaves SCX
  sched_ext: Avoid flooding the log with deprecation warnings
2026-07-13 15:55:17 -07:00
Linus Torvalds
534f8f051e USB fixes for 7.2-rc3
Here are a number of small USB driver fixes for many reported issues.
 Included in here are:
   - usb serial driver corruption and use-after-free fixes
   - usb gadget rndis bugfixes for malicious/buggy host connections
   - typec driver fixes for a load of different tiny reported issues
   - typec mux driver revert for a broken patch in -rc1
   - usb gadget driver fixes for many different reported problems
   - new usb device quirks added
   - usbip tool fixes and some core usbip fixes as well
   - dwc3 driver fixes for minor issues
   - xhci driver fixes for reported problems
   - lots of other tiny usb driver fixes for many tiny issues
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of small USB driver fixes for many reported issues.
  Included in here are:

   - usb serial driver corruption and use-after-free fixes

   - usb gadget rndis bugfixes for malicious/buggy host connections

   - typec driver fixes for a load of different tiny reported issues

   - typec mux driver revert for a broken patch in -rc1

   - usb gadget driver fixes for many different reported problems

   - new usb device quirks added

   - usbip tool fixes and some core usbip fixes as well

   - dwc3 driver fixes for minor issues

   - xhci driver fixes for reported problems

   - lots of other tiny usb driver fixes for many tiny issues

  All of these have been in linux-next with no reported issues"

* tag 'usb-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (56 commits)
  USB: core: ratelimit cabling message
  usb: misc: usbio: fix disconnect UAF in client teardown
  Revert "usb: typec: mux: avoid duplicated mux switches"
  USB: chaoskey: Fix slab-use-after-free in chaoskey_release()
  usb: ucsi: huawei_gaokun: move typec_altmode off stack
  usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
  usb: typec: tcpm: Fix VDM type for Enter Mode commands
  usb: typec: ucsi: cancel pending work on system suspend
  usb: typec: class: drop PD lookup reference
  usb: typec: ps883x: Fix DP+USB3 configuration
  usb: xhci: Fix sleep in atomic context in xhci_free_streams()
  xhci: sideband: fix ring sg table pages leak
  usb: gadget: udc: Fix use-after-free in gadget_match_driver
  usb: dwc3: run gadget disconnect from sleepable suspend context
  usb: sl811-hcd: disable controller wakeup on remove
  usb: typec: anx7411: use devm_pm_runtime_enable()
  usb: dwc3: fix dwc3_readl() and dwc3_writel() calls in dwc3_ulpi_setup()
  USB: misc: uss720: unregister parport on probe failure
  usb: gadget: function: rndis: add length check for header
  usb: gadget: function: rndis: add length check to response query
  ...
2026-07-12 12:12:41 -07:00
Linus Torvalds
2f9eb0c54a RISC-V updates for v7.2-rc3
- Avoid a null pointer deference in machine_kexec_prepare() that the
   IMA subsystem can trigger
 
 - Bypass libc in part of the ptrace_v_not_enabled kselftest to avoid
   noise from child atfork handlers that libc might run
 
 - Include Kconfig support for UltraRISC SoCs, already referenced by
   some device drivers; and enable it in our defconfig
 
 - Fix the build of the rseq kselftest for RISC-V by borrowing a
   technique from the KVM and S390 kselftests that includes
   arch-specific header files from tools/arch/<arch>/include
 
 - Fix some memory leaks in the RISC-V vector ptrace kselftests
 
 - Clean up some DT bindings and hwprobe documentation
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Merge tag 'riscv-for-linus-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Paul Walmsley:
 "The most notable change involves the rseq kselftest common Makefile
  (as it is not RISC-V-specific). The basic approach in the patch
  appears similar to one used in the KVM and S390 selftests (grep for
  LINUX_TOOL_ARCH_INCLUDE and SUBARCH), and the rseq kselftests pass a
  quick build test on x86 after this.

   - Avoid a null pointer deference in machine_kexec_prepare() that the
     IMA subsystem can trigger

   - Bypass libc in part of the ptrace_v_not_enabled kselftest to avoid
     noise from child atfork handlers that libc might run

   - Include Kconfig support for UltraRISC SoCs, already referenced by
     some device drivers; and enable it in our defconfig

   - Fix the build of the rseq kselftest for RISC-V by borrowing a
     technique from the KVM and S390 kselftests that includes
     arch-specific header files from tools/arch/<arch>/include

   - Fix some memory leaks in the RISC-V vector ptrace kselftests

   - Clean up some DT bindings and hwprobe documentation"

* tag 'riscv-for-linus-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  selftests/riscv: ptrace: Fix memory leak of regset_data in vector tests
  selftests/rseq: Fix a building error for riscv arch
  riscv: defconfig: enable ARCH_ULTRARISC
  riscv: add UltraRISC SoC family Kconfig support
  riscv: hwprobe.rst: Document EXT_ZICFISS and EXT_ZICFILP
  riscv: hwprobe.rst: Make indentation consistent
  dt-bindings: riscv: sort multi-letter Z extensions alphanumerically
  selftests: riscv: Bypass libc in inactive vector ptrace test
  riscv: Prevent NULL pointer dereference in machine_kexec_prepare()
2026-07-12 11:25:40 -07:00
Linus Torvalds
d96fcfe1b7 arm64 fixes for -rc3
- Fix crash when using SMT hotplug on ACPI systems in conjunction with
   maxcpus=.
 
 - Fix 30% kswapd performance regression introduced by C1-Pro SME erratum
   workaround.
 
 - Fix TLB over-invalidation regression during memory hotplug.
 
 - Fix incorrect encoding of FEAT_BWE2 value in ID_AA64DFR2_EL1.BWE.
 
 - Typo fixes in the arm64 selftests.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:

 - Fix crash when using SMT hotplug on ACPI systems in conjunction with
   maxcpus=

 - Fix 30% kswapd performance regression introduced by C1-Pro SME
   erratum workaround

 - Fix TLB over-invalidation regression during memory hotplug

 - Fix incorrect encoding of FEAT_BWE2 value in ID_AA64DFR2_EL1.BWE

 - Typo fixes in the arm64 selftests

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  selftests/arm64: fix spelling errors in comments
  arm64/sysreg: Fix BWE field encoding in ID_AA64DFR2_EL1
  arm64/mm: Optimize TLB flush in unmap_hotplug_[pmd|pud]_range()
  arm64: Avoid eager DVMSync reclaim batches with C1-Pro SME erratum
  cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()
  arm64: smp: Fix hot-unplug tearing by forcing unregistration
2026-07-10 09:59:55 -07:00
SJ Park
14afcf67dc MAINTAINERS: s/SeongJae/SJ/
My legal and preferred first names are SeongJae and SJ, respectively.  I
was using the legal name for commits and tags, while using the preferred
name for conversations.  It sometimes confuses people including myself. 
Consistently use the preferred name.

Together remove copyright notes on files.  Those are only confusing for
people who are not familiar with the law.  Meanwhile, we can infer the
information in a better way from git logs and public information.

Link: https://lore.kernel.org/20260630013820.143366-1-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Acked-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-09 15:48:53 -07:00
Eric Biggers
9665e22579 lib/crypto: docs: Improve introduction sentence
Make it clear that lib/crypto/ is a kernel-internal library.  It's easy
for people to come across this page, especially the HTML version online,
without that context.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://patch.msgid.link/20260709022747.44635-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2026-07-09 11:06:05 -04:00
Eric Biggers
8008d6b59a lib/crypto: docs: Fix some sentence fragments
Currently, the section about the library API for each algorithm begins
with a noun phrase that was intended to serve as an elaboration on the
title.  It's better to use complete sentences.

Suggested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Link: https://patch.msgid.link/20260709022651.44216-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2026-07-09 11:05:54 -04:00
Ravi Hothi
4214220c31
ASoC: dt-bindings: qcom,sm8250: Add Eliza sound card
Add bindings for Eliza sound card, which is compatible with
the existing SM8450.

Signed-off-by: Ravi Hothi <ravi.hothi@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260703073434.2589657-3-ravi.hothi@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-08 12:25:19 +01:00
Ravi Hothi
bc0d4444f3
ASoC: dt-bindings: qcom: Add Eliza LPASS macro codecs
Add bindings for Qualcomm Eliza LPASS RX, TX, VA and WSA macro codecs,
which are compatible with the existing SM8550 generation.

Signed-off-by: Ravi Hothi <ravi.hothi@oss.qualcomm.com>
Link: https://patch.msgid.link/20260703073434.2589657-2-ravi.hothi@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-08 12:25:18 +01:00
Guodong Xu
a914034334 riscv: hwprobe.rst: Document EXT_ZICFISS and EXT_ZICFILP
RISCV_HWPROBE_EXT_ZICFISS and RISCV_HWPROBE_EXT_ZICFILP are defined in
the hwprobe uAPI but are not documented in
Documentation/arch/riscv/hwprobe.rst.  Add documentation for them.

Link: 302a2d45c2
Reviewed-by: Andrew Jones <andrew.jones@oss.qualcomm.com>
Signed-off-by: Guodong Xu <docular.xu@gmail.com>
Link: https://patch.msgid.link/20260701-rva23u64-hwprobe-v2-v5-3-2c61f94a695a@gmail.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2026-07-08 01:21:08 -06:00
Andrew Jones
dbff364636 riscv: hwprobe.rst: Make indentation consistent
A handful of vendor-extension entries indent continuation lines with a
tab character, while the rest of hwprobe.rst uses spaces.  In addition,
many list items align their continuation lines under the 'm' of
':c:macro:' (column 7) rather than under the item text (column 4), so
the file mixes several indentation styles.

Replace the tabs with spaces and align every list item's continuation
lines under the item text, giving the whole file one consistent style.

Whitespace-only change, no functional change.

[Guodong: extend from tabs->spaces to normalizing all continuation-line
 indentation across the file]

Signed-off-by: Andrew Jones <andrew.jones@oss.qualcomm.com>
Signed-off-by: Guodong Xu <docular.xu@gmail.com>
Link: https://patch.msgid.link/20260701-rva23u64-hwprobe-v2-v5-2-2c61f94a695a@gmail.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2026-07-08 01:21:08 -06:00
Guodong Xu
e0776dde10 dt-bindings: riscv: sort multi-letter Z extensions alphanumerically
The multi-letter extension enum is documented as being sorted
alphanumerically (see the "multi-letter extensions, sorted
alphanumerically" comment), but several Z entries have drifted out of
order.

Reorder the affected entries so the multi-letter Z list is sorted
alphanumerically again.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Guodong Xu <docular.xu@gmail.com>
Link: https://patch.msgid.link/20260701-rva23u64-hwprobe-v2-v5-1-2c61f94a695a@gmail.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
2026-07-08 01:21:08 -06:00
Guopeng Zhang
97fef60258 Docs/admin-guide/cgroup-v2: note blkcg_debug_stats gates io.latency stats
The io.stat section says that enabling the io.latency controller exposes
the depth, avg_lat and win stats in addition to the normal ones. However,
these io.latency-specific stats are debug stats and are only emitted when
the blkcg_debug_stats module parameter is enabled, which is disabled by
default.

Make this explicit so users do not expect these fields to appear in
io.stat by default, and qualify the usage text that suggests using
avg_lat to pick an io.latency target.

Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:26:23 -10:00
Guopeng Zhang
451a746757 Docs/admin-guide/cgroup-v1: document rdma.peak, rdma.events and rdma.events.local
The v1 RDMA controller documentation only describes rdma.max and
rdma.current, but the controller exposes three more files -- rdma.peak,
rdma.events and rdma.events.local -- which are already documented for
v2. Mirror the v2 wording so the v1 documentation matches the files
actually visible on a v1 mount.

Co-developed-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:26:23 -10:00
Guopeng Zhang
5aa31cb1df Docs/admin-guide/cgroup-v2: drop stale misc interface file count
The Miscellaneous controller documentation states it "provides 3 interface
files", but misc_cg_files[] actually registers six (max, current, peak,
capacity, events, events.local). Drop the stale count and let the file
list that follows speak for itself.

Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:26:23 -10:00
Liang Luo
030db7005e sched_ext: Documentation: Fix ops table header reference
The "Where to Look" and "ABI Instability" sections state that the ops
table is defined in include/linux/sched/ext.h. However, struct
sched_ext_ops is actually defined in kernel/sched/ext/internal.h, along
with the SCX_OPS_* flags; include/linux/sched/ext.h holds the core data
structures (struct sched_ext_entity, struct scx_dispatch_q, ...) and the
DSQ constants. Point the ops table references to the correct header.

Signed-off-by: Liang Luo <luoliang@kylinos.cn>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:23:33 -10:00
Nick Desaulniers
cead34ac1c MAINTAINERS: update ndesaulniers
I'm coming back.  I will return.  I will possess your body, and I'll
make LKML burn.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-07-06 15:49:29 -07:00
Louis-Alexis Eyraud
c505d54c1a dt-bindings: mmc: mtk-sd: Document extra clocks for MT8189
MT8189 SoC MMC Controller IP has 4 additional clocks.
Describe them in the dt-bindings for this SoC.

Fixes: 7514f64780 ("dt-bindings: mmc: mtk-sd: Add support for MT8189 SoC")
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
2026-07-06 17:03:58 +02:00
Linus Torvalds
216a8b2179 sound fixes for 7.2-rc2
A standard set of driver-specific fixes and quirks accumulated since
 the merge window:
 
 ASoC:
 - SOF: Sanity check to prevent OOB reads
 - rsnd: Fix clock leak and double-disable issues with PM
 - tas675x: Misc fixes for register fields, etc
 - lpass-va-macro: Correct codec version for Qualcomm SC7280
 - amd-yc: DMIC quirk for Alienware m15 R7 AMD
 
 Others:
 - us144mkii: Fix a UAF on disconnect and anchor list corruption
 - HD-audio: Realtek quirks for HP models
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Merge tag 'sound-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A standard set of driver-specific fixes and quirks accumulated since
  the merge window:

  ASoC:
   - SOF: Sanity check to prevent OOB reads
   - rsnd: Fix clock leak and double-disable issues with PM
   - tas675x: Misc fixes for register fields, etc
   - lpass-va-macro: Correct codec version for Qualcomm SC7280
   - amd-yc: DMIC quirk for Alienware m15 R7 AMD

  Others:
   - us144mkii: Fix a UAF on disconnect and anchor list corruption
   - HD-audio: Realtek quirks for HP models"

* tag 'sound-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: rsnd: src: Add missing scu_supply clock to suspend/resume
  Documentation: sound: tas675x: Fix temperature range and impedance documentation
  ASoC: codecs: tas675x: Fix CHx temperature range register bit fields
  ASoC: codecs: tas675x: use READ_ONCE for params to be used concurrently
  ASoC: rsnd: adg: make rsnd_adg_clk_control() idempotent
  ASoC: SOF: validate probe info element counts
  ALSA: usx2y: us144mkii: fix work UAF on disconnect
  ASoC: amd: yc: Add Alienware m15 R7 AMD to DMIC quirk table
  ALSA: hda/realtek: Add quirk for HP Victus 16-e0xxx (88EE) to enable mute LED
  MAINTAINERS: ASoC: SOF: add AMD reviewer for Sound Open Firmware
  ASoC: codecs: lpass-va-macro: Fix LPASS Codec Version for SC7280
  ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission
2026-07-05 05:26:45 -10:00
Linus Torvalds
9c9330c764 spi: Fixes for v7.2
A small set of fixes that came in since -rc1, we have one core fix for
 shutting down target mode properly if the system suspends while it's
 running plus a small set of fairly unremarkable device specific fixes.
 There's also a couple of pure DT binding changes for Renesas SoCs, the
 power domains one allows some SoCs to be correctly described with
 existing code.
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Merge tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A small set of fixes that came in since -rc1, we have one core fix for
  shutting down target mode properly if the system suspends while it's
  running plus a small set of fairly unremarkable device specific fixes.
  There's also a couple of pure DT binding changes for Renesas SoCs, the
  power domains one allows some SoCs to be correctly described with
  existing code"

* tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: rzv2h-rspi: Fix DMA transfer error handling for signal interruption
  spi: dt-bindings: snps,dw-apb-ssi: add 'power-domains' property
  spi: dt-bindings: snps,dw-apb-ssi: drop superfluous RZ/N1 entry
  spi: dw: use the correct error msg if request_irq() fails
  spi: dw: fix first spi transfer with dma always fallback to PIO
  spi: core: Abort active target transfer on controller suspend
  spi: sh-msiof: abort transfers when reset times out
2026-07-05 05:24:06 -10:00
Linus Torvalds
1e9cdc2ea1 16 ksmbd server fixes
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Merge tag 'v7.2-rc1-smb3-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - Fix several use-after-free races in durable handle reconnect,
   supersede, and oplock handling

 - Avoid holding the inode oplock lock while waiting for a lease break
   acknowledgement. This removes delays of up to 35 seconds when cifs.ko
   closes a deferred handle in response to a lease break

 - Fix malformed security descriptor handling, including an undersized
   DACL allocation issue and an out-of-bounds ACE SID read

 - Fix memory leaks in security descriptor and DOS attribute xattr
   encoding/decoding error paths

 - Fix outstanding SMB2 credit leaks on aborted requests and correct the
   QUERY_INFO credit charge calculation

 - Fix hard-link creation without replacement being incorrectly rejected
   when the handle lacks DELETE access

 - Avoid unnecessary zeroing of large SMB2 read buffers

 - Add an oplock list lockdep annotation and update the documented
   support status for durable handles and SMB3.1.1 compression

 - Durable handle fixes to address ownership and lifetime races during
   reconnect, session teardown, oplock handling, and superseding opens,
   preventing stale session and file references from being used by
   concurrent operations

* tag 'v7.2-rc1-smb3-server-fixes' of git://git.samba.org/ksmbd:
  ksmbd: fix app-instance durable supersede session UAF
  ksmbd: snapshot previous oplock state before durable checks
  ksmbd: close superseded durable handles through refcount handoff
  ksmbd: fix use-after-free of fp->owner.name in durable handle owner check
  smb/server: do not require delete access for non-replacing links
  ksmbd: don't hold ci->m_lock while waiting for a lease break ack
  ksmbd: doc: update feature support status for durable handles and compression
  ksmbd: annotate oplock list traversals under m_lock
  ksmbd: fix outstanding credit leak on abort and error paths
  ksmbd: fix credit charge calculation for SMB2 QUERY_INFO
  ksmbd: avoid zeroing the read buffer in smb2_read()
  ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl
  ksmbd: reject undersized DACLs before parsing ACEs
  ksmbd: fix n.data memory leak in ksmbd_vfs_set_dos_attrib_xattr
  ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling
  ksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr
2026-07-03 18:55:34 -10:00
Linus Torvalds
826eec5b5e VFIO fixes for v7.2-rc2
- Fix racy bitfield updates in vfio-pci-core and the mlx5 vfio-pci
    variant driver with a binary split between setup/release and
    runtime modified flags.  These were noted across several Sashiko
    reviews as pre-existing issues. (Alex Williamson)
 
  - Fix runtime PM inconsistency where the vfio-pci driver module_init
    could modify the idle PM policy of existing devices through globals
    managed in vfio-pci-core, leading to unbalanced runtime PM
    operations. (Alex Williamson)
 
  - Restore mutability of writable vfio-pci module options by further
    pulling policy globals out of vfio-pci-core, to instead be latched
    per device at device init.  Provide visibility of the per device
    latched values through debugfs. (Alex Williamson)
 
  - Fix missing VGA arbiter uninit callback in unwind path.
    (Alex Williamson)
 
  - Reorder device debugfs removal before device_del() to avoid gap
    where debugfs is available with stale devres pointers.
    (Alex Williamson)
 
  - Move UUID library linking flag from vfio selftest Makefile into
    libvfio.mk to avoid exposing such dependencies when linking with
    KVM selftests. (Sean Christopherson)
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Merge tag 'vfio-v7.2-rc2' of https://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:
 "Mostly straightforward fixes here, inconsistent runtime PM handling
  due to global device policies, bitfield races, unwind path gaps,
  teardown ordering, and a misplaced library flag.

   - Fix racy bitfield updates in vfio-pci-core and the mlx5 vfio-pci
     variant driver with a binary split between setup/release and
     runtime modified flags. These were noted across several Sashiko
     reviews as pre-existing issues (Alex Williamson)

   - Fix runtime PM inconsistency where the vfio-pci driver module_init
     could modify the idle PM policy of existing devices through globals
     managed in vfio-pci-core, leading to unbalanced runtime PM
     operations (Alex Williamson)

   - Restore mutability of writable vfio-pci module options by further
     pulling policy globals out of vfio-pci-core, to instead be latched
     per device at device init. Provide visibility of the per device
     latched values through debugfs (Alex Williamson)

   - Fix missing VGA arbiter uninit callback in unwind path (Alex
     Williamson)

   - Reorder device debugfs removal before device_del() to avoid gap
     where debugfs is available with stale devres pointers (Alex
     Williamson)

   - Move UUID library linking flag from vfio selftest Makefile into
     libvfio.mk to avoid exposing such dependencies when linking with
     KVM selftests (Sean Christopherson)"

* tag 'vfio-v7.2-rc2' of https://github.com/awilliam/linux-vfio:
  vfio: selftests: Add luuid to libvfio.mk's list of libraries, not to the Makefile
  vfio/pci: Expose latched module parameter policy in debugfs
  vfio: Remove device debugfs before releasing devres
  vfio/pci: Latch all module parameters per device
  vfio/mlx5: Fix racy bitfields and tighten struct layout
  vfio/pci: Fix racy bitfields and tighten struct layout
  vfio/pci: Release the VGA arbiter client on register_device() failure
  vfio/pci: Latch disable_idle_d3 per device
2026-07-02 15:25:54 -10:00
Manuel Ebner
0be186a120 docs: watchdog: Fix brackets
Add missing brackets ')'.

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20260627091707.29688-2-manuelebner@mailbox.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-07-02 07:12:58 -07:00
Sen Wang
c34a4be8b8
Documentation: sound: tas675x: Fix temperature range and impedance documentation
Two corrections against the TRM (SLOU589A):
- Corrected channel temperature range
- Corrected conversion formula for global temperature

Fixes: ba46edca35 ("Documentation: sound: Add TAS675x codec mixer controls documentation")
Signed-off-by: Sen Wang <sen@ti.com>
Link: https://patch.msgid.link/20260630183126.2588322-4-sen@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-01 19:52:38 +01:00
Namjae Jeon
23aa1873ce ksmbd: doc: update feature support status for durable handles and compression
Update ksmbd.rst to reflect the current implementation status of SMB
features. Durable handles (v1, v2) and SMB3.1.1 Compression are now
fully supported in ksmbd, so update their status from "Planned for future"
to "Supported".

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-06-30 21:29:46 -05:00
Wolfram Sang
eeda4e1e6d
spi: dt-bindings: snps,dw-apb-ssi: add 'power-domains' property
This SPI controller likely belongs to a power domain for all the SoCs
listed. For sure, it belongs to one on the Renesas RZ/N1 SoC, so
enable the property to be able to describe its power domain in DTs.

Suggested-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260626180326.9593-3-wsa+renesas@sang-engineering.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-06-30 18:20:45 +01:00
Wolfram Sang
d1f02ae476
spi: dt-bindings: snps,dw-apb-ssi: drop superfluous RZ/N1 entry
Commit 164c05f03f ("spi: Convert DW SPI binding to DT schema") added
an RZ/N1 entry which was not in the original txt-file. It doesn't follow
the usual "<soc entry>, <soc family entry>" style for Renesas SoCs which
was properly added later with commit 029d32a892 ("spi: dw-apb-ssi:
Integrate Renesas RZ/N1 SPI controller"). In that commit, removing the
bogus entry was overlooked and is finally done now.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260626180326.9593-2-wsa+renesas@sang-engineering.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-06-30 18:20:43 +01:00