Commit Graph

1398144 Commits

Author SHA1 Message Date
Linus Torvalds
241e99dbdc pmdomain providers:
- imx: Fix reference count leak in ->remove()
  - samsung: Rework legacy splash-screen handover workaround
  - samsung: Fix potential memleak during ->probe()
  - arm: Fix genpd leak on provider registration failure for scmi
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Merge tag 'pmdomain-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain fixes from Ulf Hansson:

 - imx: Fix reference count leak in ->remove()

 - samsung: Rework legacy splash-screen handover workaround

 - samsung: Fix potential memleak during ->probe()

 - arm: Fix genpd leak on provider registration failure for scmi

* tag 'pmdomain-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: imx: Fix reference count leak in imx_gpc_remove
  pmdomain: samsung: Rework legacy splash-screen handover workaround
  pmdomain: arm: scmi: Fix genpd leak on provider registration failure
  pmdomain: samsung: plug potential memleak during probe
2025-11-14 13:29:15 -08:00
Linus Torvalds
6014e75e87 cxl and related fixes for v6.18-rc6
- Fix incorrect device handle check for Generic Initiator
 - Fix offset calculation for extended linear cache poison injection
 - Fix lockdep warning for hmem_register_resource()
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Merge tag 'cxl-fixes-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl fixes from Dave Jiang:

 - Fix incorrect device handle check for Generic Initiator

 - Fix offset calculation for extended linear cache poison injection

 - Fix lockdep warning for hmem_register_resource()

* tag 'cxl-fixes-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  acpi/hmat: Fix lockdep warning for hmem_register_resource()
  cxl: Adjust offset calculation for poison injection
  acpi,srat: Fix incorrect device handle check for Generic Initiator
2025-11-14 13:25:00 -08:00
Linus Torvalds
de90cc610e spi: Fixes for v6.18
A few standard fixes here, plus one more interesting one from Hans which
 addresses an issue where a move in when we requested GPIOs on ACPI
 systems caused us to stop doing pinmuxing and leave things floating that
 we'd really rather not have floating.
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Merge tag 'spi-fix-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few standard fixes here, plus one more interesting one from Hans
  which addresses an issue where a move in when we requested GPIOs on
  ACPI systems caused us to stop doing pinmuxing and leave things
  floating that we'd really rather not have floating"

* tag 'spi-fix-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: Add TODO comment about ACPI GPIO setup
  spi: xilinx: increase number of retries before declaring stall
  spi: imx: keep dma request disabled before dma transfer setup
  spi: Try to get ACPI GPIO IRQ earlier
2025-11-14 13:04:35 -08:00
Linus Torvalds
809bd27452 regulator: Fix for v6.18
One simple fix for a GPIO descriptor leak in the probe error handling
 for the fixed regulator.
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Merge tag 'regulator-fix-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "One simple fix for a GPIO descriptor leak in the probe error handling
  for the fixed regulator"

* tag 'regulator-fix-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: fixed: fix GPIO descriptor leak on register failure
2025-11-14 13:01:23 -08:00
Linus Torvalds
27f518609e sound fixes for 6.18-rc6
A collection of small fixes.  All changes are device-specific, and
 nothing stands out.
 
 - A regression fix for HD-audio HDMI probe
 - USB-audio hardening patches for issues spotted by fuzzers
 - ASoC fixes for TAS278x, SoundWire and Cirrus
 - Usual HD-audio and USB-audio quirks
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Merge tag 'sound-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes. All changes are device-specific, and
  nothing stands out.

   - A regression fix for HD-audio HDMI probe

   - USB-audio hardening patches for issues spotted by fuzzers

   - ASoC fixes for TAS278x, SoundWire and Cirrus

   - Usual HD-audio and USB-audio quirks"

* tag 'sound-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Add native DSD quirks for PureAudio DAC series
  ASoC: rsnd: fix OF node reference leak in rsnd_ssiu_probe()
  ALSA: hda/tas2781: Correct the wrong project ID
  ALSA: usb-audio: Fix NULL pointer dereference in snd_usb_mixer_controls_badd
  ASoC: SDCA: bug fix while parsing mipi-sdca-control-cn-list
  ALSA: usb-audio: Fix potential overflow of PCM transfer buffer
  ALSA: hda/tas2781: Add new quirk for HP new projects
  ASoC: tas2781: fix getting the wrong device number
  ASoC: codecs: va-macro: fix resource leak in probe error path
  ASoC: tas2783A: Fix issues in firmware parsing
  ASoC: sdw_utils: fix device reference leak in is_sdca_endpoint_present()
  ASoC: cs4271: Fix regulator leak on probe failure
  ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver
  ASoC: da7213: Use component driver suspend/resume
  ALSA: usb-audio: add min_mute quirk for SteelSeries Arctis
  ASoC: doc: cs35l56: Update firmware filename description for B0 silicon
2025-11-14 12:50:08 -08:00
Linus Torvalds
d4f8cccc62 block-6.18-20251114
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Merge tag 'block-6.18-20251114' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block fixlet from Jens Axboe:
 "Been sitting on this one for a week or two, planning on sending it out
  when there were other block changes for 6.18. But as that hasn't
  materialized in the second week of sitting on it, let's flush it out.

  A previous commit updated my git tree locations, but one was missed as
  it was already set to the git.kernel.org one. But the git location swap
  also renamed the actual tree from linux-block to just linux, let's get
  that last one updated too"

* tag 'block-6.18-20251114' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  MAINTAINERS: correct git location for block layer tree
2025-11-14 10:18:45 -08:00
Linus Torvalds
ac9f4f306d io_uring-6.18-20251113
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Merge tag 'io_uring-6.18-20251113' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:

 - Use the actual segments in a request when for bvec based buffers

 - Fix an odd case where the iovec might get leaked for a read/write
   request, if it was newly allocated, overflowed the alloc cache, and
   hit an early error

 - Minor tweak to the query API added in this release, returning the
   number of available entries

* tag 'io_uring-6.18-20251113' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/rsrc: don't use blk_rq_nr_phys_segments() as number of bvecs
  io_uring/query: return number of available queries
  io_uring/rw: ensure allocated iovec gets cleared for early failure
2025-11-14 09:57:30 -08:00
Linus Torvalds
b86caedd0b This push contains the following changes:
- Fix device reference leak in hisilicon.
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Merge tag 'v6.18-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:

 - Fix device reference leak in hisilicon

* tag 'v6.18-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: hisilicon/qm - Fix device reference leak in qm_get_qos_value
2025-11-14 08:32:58 -08:00
Linus Torvalds
95baf63fe8 Four smb client fixes
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Merge tag 'v6.18-rc5-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Multichannel reconnect channel selection fix

 - Fix for smbdirect (RDMA) disconnect bug

 - Fix for incorrect username length check

 - Fix memory leak in mount parm processing

* tag 'v6.18-rc5-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: let smbd_disconnect_rdma_connection() turn CREATED into DISCONNECTED
  smb: fix invalid username check in smb3_fs_context_parse_param()
  cifs: client: fix memory leak in smb3_fs_context_parse_param
  smb: client: fix cifs_pick_channel when channel needs reconnect
2025-11-14 08:30:48 -08:00
Lushih Hsieh
21a9ab5b90 ALSA: usb-audio: Add native DSD quirks for PureAudio DAC series
The PureAudio APA DAC and Lotus DAC5 series are USB Audio
2.0 Class devices that support native Direct Stream Digital (DSD)
playback via specific vendor protocols.

Without these quirks, the devices may only function in standard
PCM mode, or fail to correctly report their DSD format capabilities
to the ALSA framework, preventing native DSD playback under Linux.

This commit adds new quirk entries for the mentioned DAC models
based on their respective Vendor/Product IDs (VID:PID), for example:
0x16d0:0x0ab1 (APA DAC), 0x16d0:0xeca1 (DAC5 series), etc.

The quirk ensures correct DSD format handling by setting the required
SNDRV_PCM_FMTBIT_DSD_U32_BE format bit and defining the DSD-specific
Audio Class 2.0 (AC2.0) endpoint configurations. This allows the ALSA
DSD API to correctly address the device for high-bitrate DSD streams,
bypassing the need for DoP (DSD over PCM).

Test on APA DAC and Lotus DAC5 SE under Arch Linux.

Tested-by: Lushih Hsieh <bruce@mail.kh.edu.tw>
Signed-off-by: Lushih Hsieh <bruce@mail.kh.edu.tw>
Link: https://patch.msgid.link/20251114052053.54989-1-bruce@mail.kh.edu.tw
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-14 14:19:47 +01:00
Takashi Iwai
fa3c727e05 ASoC: Fixes for v6.18
A small collection of fixes, all driver specific and none especially
 remarkable unless you have the hardware (many not even then).
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Merge tag 'asoc-fix-v6.18-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.18

A small collection of fixes, all driver specific and none especially
remarkable unless you have the hardware (many not even then).
2025-11-14 09:47:28 +01:00
Linus Torvalds
6da43bbeb6 VFIO fixes for v6.18-rc6
- Fix vfio selftests to remove the expectation that the IOMMU
    supports a 64-bit IOVA space.  These manifest both in the original
    set of tests introduced this development cycle in identity mapping
    the IOVA to buffer virtual address space, as well as the more
    recent boundary testing.  Implement facilities for collecting the
    valid IOVA ranges from the backend, implement a simple IOVA
    allocator, and use the information for determining extents.
    (Alex Mastro)
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Merge tag 'vfio-v6.18-rc6' of https://github.com/awilliam/linux-vfio

Pull VFIO seftest fixes from Alex Williamson:

 - Fix vfio selftests to remove the expectation that the IOMMU supports
   a 64-bit IOVA space.

   These manifest both in the original set of tests introduced this
   development cycle in identity mapping the IOVA to buffer virtual
   address space, as well as the more recent boundary testing.

   Implement facilities for collecting the valid IOVA ranges from the
   backend, implement a simple IOVA allocator, and use the information
   for determining extents (Alex Mastro)

* tag 'vfio-v6.18-rc6' of https://github.com/awilliam/linux-vfio:
  vfio: selftests: replace iova=vaddr with allocated iovas
  vfio: selftests: add iova allocator
  vfio: selftests: fix map limit tests to use last available iova
  vfio: selftests: add iova range query helpers
2025-11-13 17:00:40 -08:00
Linus Torvalds
01814e11e5 hwmon fixes for v6.18-rc6
* gpd-fan: Fix compilation error for non-ACPI builds, and initialize EC
 	   when loading the driver
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Merge tag 'hwmon-for-v6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - gpd-fan: Fix compilation error for non-ACPI builds, and initialize EC
   when loading the driver

* tag 'hwmon-for-v6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (gpd-fan) initialize EC on driver load for Win 4
  hwmon: (gpd-fan) Fix compilation error in non-ACPI builds
2025-11-13 16:54:36 -08:00
Linus Torvalds
aecba2e013 Power management fixes for 6.18-rc6
- Fix issues related to using inadequate data types and incorrect use
    of atomic variables in the compressed hibernation images handling
    code that were introduced during the 6.9 development cycle (Mario
    Limonciello)
 
  - Move a X86_FEATURE_IDA check from turbo_is_disabled() to the places
    where a new value for MSR_IA32_PERF_CTL is computed in intel_pstate
    to address a regression preventing users from enabling turbo
    frequencies post-boot (Srinivas Pandruvada)
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Merge tag 'pm-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix issues related to the handling of compressed hibernation
  images and a recent intel_pstate driver regression:

   - Fix issues related to using inadequate data types and incorrect use
     of atomic variables in the compressed hibernation images handling
     code that were introduced during the 6.9 development cycle (Mario
     Limonciello)

   - Move a X86_FEATURE_IDA check from turbo_is_disabled() to the places
     where a new value for MSR_IA32_PERF_CTL is computed in intel_pstate
     to address a regression preventing users from enabling turbo
     frequencies post-boot (Srinivas Pandruvada)"

* tag 'pm-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Check IDA only before MSR_IA32_PERF_CTL writes
  PM: hibernate: Fix style issues in save_compressed_image()
  PM: hibernate: Use atomic64_t for compressed_size variable
  PM: hibernate: Emit an error when image writing fails
2025-11-13 16:31:07 -08:00
Linus Torvalds
6a3cc1b749 ACPI support fixes for 6.18-rc6
- Limit some checks in the ACPI CPPC library to online CPUs to avoid
    accessing uninitialized per-CPU variables when some CPUs are offline
    to start with, like during boot with "nosmt=force" (Gautham Shenoy)
 
  - Rework add_boot_memory_ranges() in the ACPI MRRM table parser to fix
    memory leaks and improve error handling (Kaushlendra Kumar)
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Merge tag 'acpi-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix issues in the ACPI CPPC library and in the recently added
  parser for the ACPI MRRM table:

   - Limit some checks in the ACPI CPPC library to online CPUs to avoid
     accessing uninitialized per-CPU variables when some CPUs are
     offline to start with, like during boot with 'nosmt=force' (Gautham
     Shenoy)

   - Rework add_boot_memory_ranges() in the ACPI MRRM table parser to
     fix memory leaks and improve error handling (Kaushlendra Kumar)"

* tag 'acpi-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: MRRM: Fix memory leaks and improve error handling
  ACPI: CPPC: Limit perf ctrs in PCC check only to online CPUs
  ACPI: CPPC: Perform fast check switch only for online CPUs
  ACPI: CPPC: Check _CPC validity for only the online CPUs
  ACPI: CPPC: Detect preferred core availability on online CPUs
2025-11-13 16:22:36 -08:00
Rafael J. Wysocki
161284b26f Merge branch 'pm-sleep'
Merge fixes for issues related to the handling of compressed hibernation
images that were introduced during the 6.9 development cycle.

* pm-sleep:
  PM: hibernate: Fix style issues in save_compressed_image()
  PM: hibernate: Use atomic64_t for compressed_size variable
  PM: hibernate: Emit an error when image writing fails
2025-11-13 21:05:46 +01:00
Linus Torvalds
9b9e43704d slab fix for 6.18-rc6
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Merge tag 'slab-for-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab fix from Vlastimil Babka:

 - Fix memory leak of objects from remote NUMA node when bulk freeing to
   a cache with sheaves (Harry Yoo)

* tag 'slab-for-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm/slub: fix memory leak in free_to_pcs_bulk()
2025-11-13 11:42:44 -08:00
Rafael J. Wysocki
7564f3543c Merge branches 'acpi-cppc' and 'acpi-tables'
Merge ACPI CPPC library fixes and an ACPI MRRM table parser fix for
6.18-rc6.

* acpi-cppc:
  ACPI: CPPC: Limit perf ctrs in PCC check only to online CPUs
  ACPI: CPPC: Perform fast check switch only for online CPUs
  ACPI: CPPC: Check _CPC validity for only the online CPUs
  ACPI: CPPC: Detect preferred core availability on online CPUs

* acpi-tables:
  ACPI: MRRM: Fix memory leaks and improve error handling
2025-11-13 20:40:51 +01:00
Linus Torvalds
8b4a014e28 linux_kselftest-fixes-6.18-rc6
Fixes event-filter-function.tc tracing test failure caused when a first
 run to sample events triggers kmem_cache_free which interferes with the
 rest of the test. Fix this calling sample_events twice to eliminate the
 kmem_cache_free related noise from the sampling.
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Merge tag 'linux_kselftest-fixes-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fix from Shuah Khan:
 "Fixes event-filter-function.tc tracing test failure caused when a
  first run to sample events triggers kmem_cache_free which interferes
  with the rest of the test.

  Fix this by calling sample_events twice to eliminate the
  kmem_cache_free related noise from the sampling"

* tag 'linux_kselftest-fixes-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/tracing: Run sample events to clear page cache events
2025-11-13 11:37:40 -08:00
Linus Torvalds
d0309c0543 Including fixes from Bluetooth and Wireless. No known outstanding
regressions.
 
 Current release - regressions:
 
   - eth: bonding: fix mii_status when slave is down
 
   - eth: mlx5e: fix missing error assignment in mlx5e_xfrm_add_state()
 
 Previous releases - regressions:
 
   - sched: limit try_bulk_dequeue_skb() batches
 
   - ipv4: route: prevent rt_bind_exception() from rebinding stale fnhe
 
   - af_unix: initialise scc_index in unix_add_edge()
 
   - netpoll: fix incorrect refcount handling causing incorrect cleanup
 
   - bluetooth: don't hold spin lock over sleeping functions
 
   - hsr: Fix supervision frame sending on HSRv0
 
   - sctp: prevent possible shift out-of-bounds
 
   - tipc: fix use-after-free in tipc_mon_reinit_self().
 
   - dsa: tag_brcm: do not mark link local traffic as offloaded
 
   - eth: virtio-net: fix incorrect flags recording in big mode
 
 Previous releases - always broken:
 
   - sched: initialize struct tc_ife to fix kernel-infoleak
 
   - wifi:
     - mac80211: reject address change while connecting
     - iwlwifi: avoid toggling links due to wrong element use
 
   - bluetooth: cancel mesh send timer when hdev removed
 
   - strparser: fix signed/unsigned mismatch bug
 
   - handshake: fix memory leak in tls_handshake_accept()
 
 Misc:
 
   - selftests: mptcp: fix some flaky tests
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from Bluetooth and Wireless. No known outstanding
  regressions.

  Current release - regressions:

   - eth:
      - bonding: fix mii_status when slave is down
      - mlx5e: fix missing error assignment in mlx5e_xfrm_add_state()

  Previous releases - regressions:

   - sched: limit try_bulk_dequeue_skb() batches

   - ipv4: route: prevent rt_bind_exception() from rebinding stale fnhe

   - af_unix: initialise scc_index in unix_add_edge()

   - netpoll: fix incorrect refcount handling causing incorrect cleanup

   - bluetooth: don't hold spin lock over sleeping functions

   - hsr: Fix supervision frame sending on HSRv0

   - sctp: prevent possible shift out-of-bounds

   - tipc: fix use-after-free in tipc_mon_reinit_self().

   - dsa: tag_brcm: do not mark link local traffic as offloaded

   - eth: virtio-net: fix incorrect flags recording in big mode

  Previous releases - always broken:

   - sched: initialize struct tc_ife to fix kernel-infoleak

   - wifi:
      - mac80211: reject address change while connecting
      - iwlwifi: avoid toggling links due to wrong element use

   - bluetooth: cancel mesh send timer when hdev removed

   - strparser: fix signed/unsigned mismatch bug

   - handshake: fix memory leak in tls_handshake_accept()

  Misc:

   - selftests: mptcp: fix some flaky tests"

* tag 'net-6.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (60 commits)
  hsr: Follow standard for HSRv0 supervision frames
  hsr: Fix supervision frame sending on HSRv0
  virtio-net: fix incorrect flags recording in big mode
  ipv4: route: Prevent rt_bind_exception() from rebinding stale fnhe
  wifi: iwlwifi: mld: always take beacon ies in link grading
  wifi: iwlwifi: mvm: fix beacon template/fixed rate
  wifi: iwlwifi: fix aux ROC time event iterator usage
  net_sched: limit try_bulk_dequeue_skb() batches
  selftests: mptcp: join: properly kill background tasks
  selftests: mptcp: connect: trunc: read all recv data
  selftests: mptcp: join: userspace: longer transfer
  selftests: mptcp: join: endpoints: longer transfer
  selftests: mptcp: join: rm: set backup flag
  selftests: mptcp: connect: fix fallback note due to OoO
  ethtool: fix incorrect kernel-doc style comment in ethtool.h
  mlx5: Fix default values in create CQ
  Bluetooth: btrtl: Avoid loading the config file on security chips
  net/mlx5e: Fix potentially misleading debug message
  net/mlx5e: Fix wraparound in rate limiting for values above 255 Gbps
  net/mlx5e: Fix maxrate wraparound in threshold between units
  ...
2025-11-13 11:20:25 -08:00
Harry Yoo
cbcff934fa mm/slub: fix memory leak in free_to_pcs_bulk()
The commit 989b09b739 ("slab: skip percpu sheaves for remote object
freeing") introduced the remote_objects array in free_to_pcs_bulk() to
skip sheaves when objects from a remote node are freed.

However, the array is flushed only when:
  1) the array becomes full (++remote_nr >= PCS_BATCH_MAX), or
  2) slab_free_hook() returns false and size becomes zero.

When neither of the conditions is met, objects in the array are leaked.
This resulted in a memory leak [1], where 82 GiB of memory was allocated
for the maple_node cache.

Flush the array after successfully freeing objects to sheaves
in the do_free: path.

In the meantime, move the snippet if (!size) goto flush_remote; outside
the while loop for readability. Let's say all objects in the array are
from a remote node: then we acquire s->cpu_sheaves->lock and try to free
an object even when size is zero. This doesn't appear to be harmful,
but isn't really readable.

Reported-by: Tytus Rogalewski <admin@simplepod.ai>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220765 [1]
Closes: https://lore.kernel.org/linux-mm/20251107094809.12e9d705b7bf4815783eb184@linux-foundation.org
Closes: https://lore.kernel.org/all/aRGDTwbt2EIz2CYn@hyeyoo
Fixes: 989b09b739 ("slab: skip percpu sheaves for remote object freeing")
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Link: https://patch.msgid.link/20251111125331.12246-1-harry.yoo@oracle.com
Acked-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Tested-by: Darrick J. Wong <djwong@kernel.org>
Tested-by: Tytus Rogalewski <admin@simplepod.ai>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2025-11-13 19:56:46 +01:00
Paolo Abeni
94909c53e4 Merge branch 'hsr-send-correct-hsrv0-supervision-frames'
Felix Maurer says:

====================
hsr: Send correct HSRv0 supervision frames

Hangbin recently reported that the hsr selftests were failing and noted
that the entries in the node table were not merged, i.e., had
00:00:00:00:00:00 as MacAddressB forever [1].

This failure only occured with HSRv0 because it was not sending
supervision frames anymore. While debugging this I found that we were
not really following the HSRv0 standard for the supervision frames we
sent, so I additionally made a few changes to get closer to the standard
and restore a more correct behavior we had a while ago.

The selftests can still fail because they take a while and run into the
timeout. I did not include a change of the timeout because I have more
improvements to the selftests mostly ready that change the test duration
but are net-next material.

[1]: https://lore.kernel.org/netdev/aMONxDXkzBZZRfE5@fedora/
====================

Link: https://patch.msgid.link/cover.1762876095.git.fmaurer@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-13 15:55:06 +01:00
Felix Maurer
b2c26c82f7 hsr: Follow standard for HSRv0 supervision frames
For HSRv0, the path_id has the following meaning:
- 0000: PRP supervision frame
- 0001-1001: HSR ring identifier
- 1010-1011: Frames from PRP network (A/B, with RedBoxes)
- 1111: HSR supervision frame

Follow the IEC 62439-3:2010 standard more closely by setting the right
path_id for HSRv0 supervision frames (actually, it is correctly set when
the frame is constructed, but hsr_set_path_id() overwrites it) and set a
fixed HSR ring identifier of 1. The ring identifier seems to be generally
unused and we ignore it anyways on reception, but some fixed identifier is
definitely better than using one identifier in one direction and a wrong
identifier in the other.

This was also the behavior before commit f266a683a4 ("net/hsr: Better
frame dispatch") which introduced the alternating path_id. This was later
moved to hsr_set_path_id() in commit 451d8123f8 ("net: prp: add packet
handling support").

The IEC 62439-3:2010 also contains 6 unused bytes after the MacAddressA in
the HSRv0 supervision frames. Adjust a TODO comment accordingly.

Fixes: f266a683a4 ("net/hsr: Better frame dispatch")
Fixes: 451d8123f8 ("net: prp: add packet handling support")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/ea0d5133cd593856b2fa673d6e2067bf1d4d1794.1762876095.git.fmaurer@redhat.com
Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-13 15:55:04 +01:00
Felix Maurer
96a3a03abf hsr: Fix supervision frame sending on HSRv0
On HSRv0, no supervision frames were sent. The supervison frames were
generated successfully, but failed the check for a sufficiently long mac
header, i.e., at least sizeof(struct hsr_ethhdr), in hsr_fill_frame_info()
because the mac header only contained the ethernet header.

Fix this by including the HSR header in the mac header when generating HSR
supervision frames. Note that the mac header now also includes the TLV
fields. This matches how we set the headers on rx and also the size of
struct hsrv0_ethhdr_sp.

Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Closes: https://lore.kernel.org/netdev/aMONxDXkzBZZRfE5@fedora/
Fixes: 9cfb5e7f0d ("net: hsr: fix hsr_init_sk() vs network/transport headers.")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/4354114fea9a642fe71f49aeeb6c6159d1d61840.1762876095.git.fmaurer@redhat.com
Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-13 15:55:04 +01:00
Linus Torvalds
2ccec59446 Changes since last update:
- Add Chunhai Guo as a EROFS reviewer to get more eyes from interested
    industry vendors
 
  - Fix infinite loop caused by incomplete craftd zstd-compressed data
    (thanks to Robert again!)
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Merge tag 'erofs-for-6.18-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs fixes from Gao Xiang:

 - Add Chunhai Guo as a EROFS reviewer to get more eyes from interested
   industry vendors

 - Fix infinite loop caused by incomplete crafted zstd-compressed data
   (thanks to Robert again!)

* tag 'erofs-for-6.18-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: avoid infinite loop due to incomplete zstd-compressed data
  MAINTAINERS: erofs: add myself as reviewer
2025-11-13 05:02:59 -08:00
Linus Torvalds
967a72fa7f Three ksmbd server fixes
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Merge tag 'v6.18-rc5-smb-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - Fix smbdirect (RDMA) disconnect hang bug

 - Fix potential Denial of Service when connection limit exceeded

 - Fix smbdirect (RDMA) connection (potentially accessing freed memory)
   bug

* tag 'v6.18-rc5-smb-server-fixes' of git://git.samba.org/ksmbd:
  smb: server: let smb_direct_disconnect_rdma_connection() turn CREATED into DISCONNECTED
  ksmbd: close accepted socket when per-IP limit rejects connection
  smb: server: rdma: avoid unmapping posted recv on accept failure
2025-11-13 04:57:38 -08:00
Xuan Zhuo
0eff2eaa53 virtio-net: fix incorrect flags recording in big mode
The purpose of commit 703eec1b24 ("virtio_net: fixing XDP for fully
checksummed packets handling") is to record the flags in advance, as
their value may be overwritten in the XDP case. However, the flags
recorded under big mode are incorrect, because in big mode, the passed
buf does not point to the rx buffer, but rather to the page of the
submitted buffer. This commit fixes this issue.

For the small mode, the commit c11a49d58a ("virtio_net: Fix mismatched
buf address when unmapping for small packets") fixed it.

Tested-by: Alyssa Ross <hi@alyssa.is>
Fixes: 703eec1b24 ("virtio_net: fixing XDP for fully checksummed packets handling")
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20251111090828.23186-1-xuanzhuo@linux.alibaba.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-11-13 13:16:30 +01:00
Linus Torvalds
6fa9041b71 nfsd-6.18 fixes:
Address recently reported issues or issues found at the recent NFS
 bake-a-thon held in Raleigh, NC.
 
 Issues reported with v6.18-rc:
 - Address a kernel build issue
 - Reorder SEQUENCE processing to avoid spurious NFS4ERR_SEQ_MISORDERED
 
 Issues that need expedient stable backports:
 - Close a refcount leak exposure
 - Report support for NFSv4.2 CLONE correctly
 - Fix oops during COPY_NOTIFY processing
 - Prevent rare crash after XDR encoding failure
 - Prevent crash due to confused or malicious NFSv4.1 client
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Merge tag 'nfsd-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:
 "Address recently reported issues or issues found at the recent NFS
  bake-a-thon held in Raleigh, NC.

  Issues reported with v6.18-rc:
   - Address a kernel build issue
   - Reorder SEQUENCE processing to avoid spurious NFS4ERR_SEQ_MISORDERED

  Issues that need expedient stable backports:
   - Close a refcount leak exposure
   - Report support for NFSv4.2 CLONE correctly
   - Fix oops during COPY_NOTIFY processing
   - Prevent rare crash after XDR encoding failure
   - Prevent crash due to confused or malicious NFSv4.1 client"

* tag 'nfsd-6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  Revert "SUNRPC: Make RPCSEC_GSS_KRB5 select CRYPTO instead of depending on it"
  nfsd: ensure SEQUENCE replay sends a valid reply.
  NFSD: Never cache a COMPOUND when the SEQUENCE operation fails
  NFSD: Skip close replay processing if XDR encoding fails
  NFSD: free copynotify stateid in nfs4_free_ol_stateid()
  nfsd: add missing FATTR4_WORD2_CLONE_BLKSIZE from supported attributes
  nfsd: fix refcount leak in nfsd_set_fh_dentry()
2025-11-12 18:41:01 -08:00
Linus Torvalds
92385a075a dma-mapping fixes for Linux 6.18
- two minor fixes for DMA API infrastructure: restoring proper structure
 padding used in benchmark tests (Qinxin Xia) and global DMA_BIT_MASK
 macro rework to make it a bit more clang friendly (James Clark)
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Merge tag 'dma-mapping-6.18-2025-11-12' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

Pull dma-mapping fixes from Marek Szyprowski:

 - two minor fixes for DMA API infrastructure: restoring proper
   structure padding used in benchmark tests (Qinxin Xia) and global
   DMA_BIT_MASK macro rework to make it a bit more clang friendly (James
   Clark)

* tag 'dma-mapping-6.18-2025-11-12' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
  dma-mapping: Allow use of DMA_BIT_MASK(64) in global scope
  dma-mapping: benchmark: Restore padding to ensure uABI remained consistent
2025-11-12 18:31:22 -08:00
Linus Torvalds
e927c520e1 LoongArch fixes for v6.18-rc6
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Merge tag 'loongarch-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:

 - Fix a Rust build error

 - Fix exception/interrupt, memory management, perf event, hardware
   breakpoint, kexec and KVM bugs

* tag 'loongarch-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: KVM: Fix max supported vCPUs set with EIOINTC
  LoongArch: KVM: Skip PMU checking on vCPU context switch
  LoongArch: KVM: Restore guest PMU if it is enabled
  LoongArch: KVM: Add delay until timer interrupt injected
  LoongArch: KVM: Set page with write attribute if dirty track disabled
  LoongArch: kexec: Print out debugging message if required
  LoongArch: kexec: Initialize the kexec_buf structure
  LoongArch: Use correct accessor to read FWPC/MWPC
  LoongArch: Refine the init_hw_perf_events() function
  LoongArch: Remove __GFP_HIGHMEM masking in pud_alloc_one()
  LoongArch: Let {pte,pmd}_modify() record the status of _PAGE_DIRTY
  LoongArch: Consolidate max_pfn & max_low_pfn calculation
  LoongArch: Consolidate early_ioremap()/ioremap_prot()
  LoongArch: Use physical addresses for CSR_MERRENTRY/CSR_TLBRENTRY
  LoongArch: Clarify 3 MSG interrupt features
  rust: Add -fno-isolate-erroneous-paths-dereference to bindgen_skip_c_flags
2025-11-12 18:21:30 -08:00
Linus Torvalds
89ee862a4d alpha: Fixes for v6.18
Add Magnus as a maintainer of the alpha port.
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Merge tag 'alpha-fixes-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha

Pull alpha fix from Matt Turner:
 "Add Magnus as a maintainer of the alpha port"

* tag 'alpha-fixes-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
  MAINTAINERS: Add Magnus Lindholm as maintainer for alpha port
2025-11-12 18:18:12 -08:00
Haotian Zhang
360b3730f8
ASoC: rsnd: fix OF node reference leak in rsnd_ssiu_probe()
rsnd_ssiu_probe() leaks an OF node reference obtained by
rsnd_ssiu_of_node(). The node reference is acquired but
never released across all return paths.

Fix it by declaring the device node with the __free(device_node)
cleanup construct to ensure automatic release when the variable goes
out of scope.

Fixes: 4e7788fb80 ("ASoC: rsnd: add SSIU BUSIF support")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/20251112065709.1522-1-vulab@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-13 00:36:01 +00:00
Dave Jiang
214291cbaa acpi/hmat: Fix lockdep warning for hmem_register_resource()
The following lockdep splat was observed while kernel auto-online a CXL
memory region:

======================================================
WARNING: possible circular locking dependency detected
6.17.0djtest+ #53 Tainted: G        W
------------------------------------------------------
systemd-udevd/3334 is trying to acquire lock:
ffffffff90346188 (hmem_resource_lock){+.+.}-{4:4}, at: hmem_register_resource+0x31/0x50

but task is already holding lock:
ffffffff90338890 ((node_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x2e/0x70

which lock already depends on the new lock.
[..]
Chain exists of:
  hmem_resource_lock --> mem_hotplug_lock --> (node_chain).rwsem

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  rlock((node_chain).rwsem);
                               lock(mem_hotplug_lock);
                               lock((node_chain).rwsem);
  lock(hmem_resource_lock);

The lock ordering can cause potential deadlock. There are instances
where hmem_resource_lock is taken after (node_chain).rwsem, and vice
versa.

Split out the target update section of hmat_register_target() so that
hmat_callback() only envokes that section instead of attempt to register
hmem devices that it does not need to.

[ dj: Fix up comment to be closer to 80cols. (Jonathan) ]

Fixes: cf8741ac57 ("ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device")
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Tested-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Reviewed-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20251105235115.85062-3-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-11-12 14:47:55 -07:00
Cryolitia PukNgae
c55a8e24cd hwmon: (gpd-fan) initialize EC on driver load for Win 4
The original implement will re-init the EC when it reports a zero
value, and it's a workaround for the black box buggy firmware.

Now a contributer test and report that, the bug is that, the firmware
won't initialize the EC on boot, so the EC ramains in unusable status.
And it won't need to re-init it during runtime. The original implement
is not perfect, any write command will be ignored until we first read
it. Just re-init it unconditionally when the driver load could work.

Fixes: 0ab88e2394 ("hwmon: add GPD devices sensor driver")
Co-developed-by: kylon <3252255+kylon@users.noreply.github.com>
Signed-off-by: kylon <3252255+kylon@users.noreply.github.com>
Link: https://github.com/Cryolitia/gpd-fan-driver/pull/20
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://lore.kernel.org/r/20251030-win4-v1-1-c374dcb86985@uniontech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2025-11-12 11:54:37 -08:00
Gopi Krishna Menon
9efb297c52 hwmon: (gpd-fan) Fix compilation error in non-ACPI builds
Building gpd-fan driver without CONFIG_ACPI results in the following
build errors:

drivers/hwmon/gpd-fan.c: In function ‘gpd_ecram_read’:
drivers/hwmon/gpd-fan.c:228:9: error: implicit declaration of function ‘outb’ [-Werror=implicit-function-declaration]
  228 |         outb(0x2E, addr_port);
      |         ^~~~
drivers/hwmon/gpd-fan.c:241:16: error: implicit declaration of function ‘inb’ [-Werror=implicit-function-declaration]
  241 |         *val = inb(data_port);

The definitions for inb() and outb() come from <linux/io.h>
(specifically through <asm/io.h>), which is implicitly included via
<acpi_io.h>. When CONFIG_ACPI is not set, <acpi_io.h> is not included
resulting in <linux/io.h> to be omitted as well.

Since the driver does not depend on ACPI, remove <linux/acpi.h> and add
<linux/io.h> directly to fix the compilation errors.

Signed-off-by: Gopi Krishna Menon <krishnagopi487@gmail.com>
Link: https://lore.kernel.org/r/20251024202042.752160-1-krishnagopi487@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2025-11-12 11:54:37 -08:00
Jakub Kicinski
fe82c4f8a2 Couple more fixes:
- mwl8k: work around FW expecting a DSSS element in beacons
  - ath11k: report correct TX status
  - iwlwifi: avoid toggling links due to wrong element use
  - iwlwifi: fix beacon template rate on older devices
  - iwlwifi: fix loop iterator being used after loop
  - mac80211: disallow address changes while using the address
  - mac80211: avoid bad rate warning in monitor/sniffer mode
  - hwsim: fix potential NULL deref (on monitor injection)
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Merge tag 'wireless-2025-11-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Johannes Berg says:

====================
Couple more fixes:
 - mwl8k: work around FW expecting a DSSS element in beacons
 - ath11k: report correct TX status
 - iwlwifi: avoid toggling links due to wrong element use
 - iwlwifi: fix beacon template rate on older devices
 - iwlwifi: fix loop iterator being used after loop
 - mac80211: disallow address changes while using the address
 - mac80211: avoid bad rate warning in monitor/sniffer mode
 - hwsim: fix potential NULL deref (on monitor injection)

* tag 'wireless-2025-11-12' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: iwlwifi: mld: always take beacon ies in link grading
  wifi: iwlwifi: mvm: fix beacon template/fixed rate
  wifi: iwlwifi: fix aux ROC time event iterator usage
  wifi: mwl8k: inject DSSS Parameter Set element into beacons if missing
  wifi: mac80211_hwsim: Fix possible NULL dereference
  wifi: mac80211: skip rate verification for not captured PSDUs
  wifi: mac80211: reject address change while connecting
  wifi: ath11k: zero init info->status in wmi_process_mgmt_tx_comp()
====================

Link: https://patch.msgid.link/20251112114621.15716-5-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-12 09:33:09 -08:00
Srinivas Pandruvada
4b747cc628 cpufreq: intel_pstate: Check IDA only before MSR_IA32_PERF_CTL writes
Commit ac4e04d9e3 ("cpufreq: intel_pstate: Unchecked MSR aceess in
legacy mode") introduced a check for feature X86_FEATURE_IDA to verify
turbo mode support. Although this is the correct way to check for turbo
mode support, it causes issues on some platforms that disable turbo
during OS boot, but enable it later [1]. Before adding this feature
check, users were able to get turbo mode frequencies by writing 0 to
/sys/devices/system/cpu/intel_pstate/no_turbo post-boot.

To restore the old behavior on the affected systems while still
addressing the unchecked MSR issue on some Skylake-X systems, check
X86_FEATURE_IDA only immediately before updates of MSR_IA32_PERF_CTL
that may involve setting the Turbo Engage Bit (bit 32).

Fixes: ac4e04d9e3 ("cpufreq: intel_pstate: Unchecked MSR aceess in legacy mode")
Reported-by: Aaron Rainbolt <arainbolt@kfocus.org>
Closes: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2122531 [1]
Tested-by: Aaron Rainbolt <arainbolt@kfocus.org>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject adjustment, changelog edits ]
Link: https://patch.msgid.link/20251111010840.141490-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-11-12 17:59:37 +01:00
Caleb Sander Mateos
2d0e88f3fd io_uring/rsrc: don't use blk_rq_nr_phys_segments() as number of bvecs
io_buffer_register_bvec() currently uses blk_rq_nr_phys_segments() as
the number of bvecs in the request. However, bvecs may be split into
multiple segments depending on the queue limits. Thus, the number of
segments may overestimate the number of bvecs. For ublk devices, the
only current users of io_buffer_register_bvec(), virt_boundary_mask,
seg_boundary_mask, max_segments, and max_segment_size can all be set
arbitrarily by the ublk server process.
Set imu->nr_bvecs based on the number of bvecs the rq_for_each_bvec()
loop actually yields. However, continue using blk_rq_nr_phys_segments()
as an upper bound on the number of bvecs when allocating imu to avoid
needing to iterate the bvecs a second time.

Link: https://lore.kernel.org/io-uring/20251111191530.1268875-1-csander@purestorage.com/
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Fixes: 27cb27b6d5 ("io_uring: add support for kernel registered bvecs")
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-11-12 08:25:33 -07:00
Alex Mastro
d323ad7396 vfio: selftests: replace iova=vaddr with allocated iovas
vfio_dma_mapping_test and vfio_pci_driver_test currently use iova=vaddr
as part of DMA mapping operations. However, not all IOMMUs support the
same virtual address width as the processor. For instance, older Intel
consumer platforms only support 39-bits of IOMMU address space. On such
platforms, using the virtual address as the IOVA fails.

Make the tests more robust by using iova_allocator to vend IOVAs, which
queries legally accessible IOVAs from the underlying IOMMUFD or VFIO
container.

Reviewed-by: David Matlack <dmatlack@google.com>
Tested-by: David Matlack <dmatlack@google.com>
Signed-off-by: Alex Mastro <amastro@fb.com>
Link: https://lore.kernel.org/r/20251111-iova-ranges-v3-4-7960244642c5@fb.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
2025-11-12 08:04:42 -07:00
Alex Mastro
ce0e3c403e vfio: selftests: add iova allocator
Add struct iova_allocator, which gives tests a convenient way to generate
legally-accessible IOVAs to map. This allocator traverses the sorted
available IOVA ranges linearly, requires power-of-two size allocations,
and does not support freeing iova allocations. The assumption is that
tests are not IOVA space-bounded, and will not need to recycle IOVAs.

This is based on Alex Williamson's patch series for adding an IOVA
allocator [1].

[1] https://lore.kernel.org/all/20251108212954.26477-1-alex@shazbot.org/

Reviewed-by: David Matlack <dmatlack@google.com>
Tested-by: David Matlack <dmatlack@google.com>
Signed-off-by: Alex Mastro <amastro@fb.com>
Link: https://lore.kernel.org/r/20251111-iova-ranges-v3-3-7960244642c5@fb.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
2025-11-12 08:04:42 -07:00
Alex Mastro
a77fa0b922 vfio: selftests: fix map limit tests to use last available iova
Use the newly available vfio_pci_iova_ranges() to determine the last
legal IOVA, and use this as the basis for vfio_dma_map_limit_test tests.

Fixes: de8d1f2fd5 ("vfio: selftests: add end of address space DMA map/unmap tests")
Reviewed-by: David Matlack <dmatlack@google.com>
Tested-by: David Matlack <dmatlack@google.com>
Signed-off-by: Alex Mastro <amastro@fb.com>
Link: https://lore.kernel.org/r/20251111-iova-ranges-v3-2-7960244642c5@fb.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
2025-11-12 08:04:42 -07:00
Alex Mastro
7c44656ab3 vfio: selftests: add iova range query helpers
VFIO selftests need to map IOVAs from legally accessible ranges, which
could vary between hardware. Tests in vfio_dma_mapping_test.c are making
excessively strong assumptions about which IOVAs can be mapped.

Add vfio_iommu_iova_ranges(), which queries IOVA ranges from the
IOMMUFD or VFIO container associated with the device. The queried ranges
are normalized to IOMMUFD's iommu_iova_range representation so that
handling of IOVA ranges up the stack can be implementation-agnostic.
iommu_iova_range and vfio_iova_range are equivalent, so bias to using the
new interface's struct.

Query IOMMUFD's ranges with IOMMU_IOAS_IOVA_RANGES.
Query VFIO container's ranges with VFIO_IOMMU_GET_INFO and
VFIO_IOMMU_TYPE1_INFO_CAP_IOVA_RANGE.

The underlying vfio_iommu_type1_info buffer-related functionality has
been kept generic so the same helpers can be used to query other
capability chain information, if needed.

Reviewed-by: David Matlack <dmatlack@google.com>
Tested-by: David Matlack <dmatlack@google.com>
Signed-off-by: Alex Mastro <amastro@fb.com>
Link: https://lore.kernel.org/r/20251111-iova-ranges-v3-1-7960244642c5@fb.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
2025-11-12 08:04:42 -07:00
Chuang Wang
ac1499fcd4 ipv4: route: Prevent rt_bind_exception() from rebinding stale fnhe
The sit driver's packet transmission path calls: sit_tunnel_xmit() ->
update_or_create_fnhe(), which lead to fnhe_remove_oldest() being called
to delete entries exceeding FNHE_RECLAIM_DEPTH+random.

The race window is between fnhe_remove_oldest() selecting fnheX for
deletion and the subsequent kfree_rcu(). During this time, the
concurrent path's __mkroute_output() -> find_exception() can fetch the
soon-to-be-deleted fnheX, and rt_bind_exception() then binds it with a
new dst using a dst_hold(). When the original fnheX is freed via RCU,
the dst reference remains permanently leaked.

CPU 0                             CPU 1
__mkroute_output()
  find_exception() [fnheX]
                                  update_or_create_fnhe()
                                    fnhe_remove_oldest() [fnheX]
  rt_bind_exception() [bind dst]
                                  RCU callback [fnheX freed, dst leak]

This issue manifests as a device reference count leak and a warning in
dmesg when unregistering the net device:

  unregister_netdevice: waiting for sitX to become free. Usage count = N

Ido Schimmel provided the simple test validation method [1].

The fix clears 'oldest->fnhe_daddr' before calling fnhe_flush_routes().
Since rt_bind_exception() checks this field, setting it to zero prevents
the stale fnhe from being reused and bound to a new dst just before it
is freed.

[1]
ip netns add ns1
ip -n ns1 link set dev lo up
ip -n ns1 address add 192.0.2.1/32 dev lo
ip -n ns1 link add name dummy1 up type dummy
ip -n ns1 route add 192.0.2.2/32 dev dummy1
ip -n ns1 link add name gretap1 up arp off type gretap \
    local 192.0.2.1 remote 192.0.2.2
ip -n ns1 route add 198.51.0.0/16 dev gretap1
taskset -c 0 ip netns exec ns1 mausezahn gretap1 \
    -A 198.51.100.1 -B 198.51.0.0/16 -t udp -p 1000 -c 0 -q &
taskset -c 2 ip netns exec ns1 mausezahn gretap1 \
    -A 198.51.100.1 -B 198.51.0.0/16 -t udp -p 1000 -c 0 -q &
sleep 10
ip netns pids ns1 | xargs kill
ip netns del ns1

Cc: stable@vger.kernel.org
Fixes: 67d6d681e1 ("ipv4: make exception cache less predictible")
Signed-off-by: Chuang Wang <nashuiliang@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20251111064328.24440-1-nashuiliang@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-12 06:46:36 -08:00
Baojun Xu
f6fdd77b3e ALSA: hda/tas2781: Correct the wrong project ID
The project hardware ID should be ALC287_FIXUP_TXNW2781_I2C,
not ALC287_FIXUP_TAS2781_I2C for HP Lampass projects.

Fixes: 7a39c723b7 ("ALSA: hda/tas2781: Add new quirk for HP new projects")
Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Link: https://patch.msgid.link/20251112092609.15865-1-baojun.xu@ti.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-11-12 10:33:17 +01:00
Johannes Berg
a35f64a216 iwlwifi fixes:
- avoid link toggling
 - fix beacon template rate
 - don't use iterator outside the loop
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Merge tag 'iwlwifi-fixes-2025-11-12' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Miri Korenblit says:
====================
iwlwifi fixes:

- avoid link toggling
- fix beacon template rate
- don't use iterator outside the loop
====================

Link: https://patch.msgid.link/DM3PPF63A6024A9E52FF4A7B23F283B7FC7A3CCA@DM3PPF63A6024A9.namprd11.prod.outlook.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-11-12 09:51:05 +01:00
Miri Korenblit
1a222625b4 wifi: iwlwifi: mld: always take beacon ies in link grading
One of the factors of a link's grade is the channel load, which is
calculated from the AP's bss load element.
The current code takes this element from the beacon for an active link,
and from bss->ies for an inactive link.

bss->ies is set to either the beacon's ies or to the probe response
ones, with preference to the probe response (meaning that if there was
even one probe response, the ies of it will be stored in bss->ies and
won't be overiden by the beacon ies).

The probe response can be very old, i.e. from the connection time,
where a beacon is updated before each link selection (which is
triggered only after a passive scan).

In such case, the bss load element in the probe response will not
include the channel load caused by the STA, where the beacon will.

This will cause the inactive link to always have a lower channel
load, and therefore an higher grade than the active link's one.

This causes repeated link switches, causing the throughput to drop.

Fix this by always taking the ies from the beacon, as those are for
sure new.

Fixes: d1e879ec60 ("wifi: iwlwifi: add iwlmld sub-driver")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251110145652.b493dbb1853a.I058ba7309c84159f640cc9682d1bda56dd56a536@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-11-12 09:54:46 +02:00
Johannes Berg
3592c0083f wifi: iwlwifi: mvm: fix beacon template/fixed rate
During the development of the rate changes, I evidently made
some changes that shouldn't have been there; beacon templates
with rate_n_flags are only in old versions, so no changes to
them should have been necessary, and evidently broke on some
devices. This also would have broken fixed (injection) rates,
it would seem. Restore the old handling of this.

Fixes: dabc88cb3b ("wifi: iwlwifi: handle v3 rates")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220558
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20251008112044.3bb8ea849d8d.I90f4d2b2c1f62eaedaf304a61d2ab9e50c491c2d@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-11-12 09:54:46 +02:00
Junjie Cao
f4c737d449 wifi: iwlwifi: fix aux ROC time event iterator usage
The list_for_each_entry() iterator must not be used outside the loop.
Even though we break and check for NULL, doing so still violates kernel
iteration rules and triggers Coccinelle's use_after_iter.cocci warning.

Cache the matched entry in aux_roc_te and use it consistently after the
loop. This follows iterator best practices, resolves the warning, and
makes the code more maintainable.

Signed-off-by: Junjie Cao <junjie.cao@intel.com>
Link: https://patch.msgid.link/20251016014919.383565-1-junjie.cao@intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-11-12 09:54:46 +02:00
Eric Dumazet
0345552a65 net_sched: limit try_bulk_dequeue_skb() batches
After commit 100dfa74ca ("inet: dev_queue_xmit() llist adoption")
I started seeing many qdisc requeues on IDPF under high TX workload.

$ tc -s qd sh dev eth1 handle 1: ; sleep 1; tc -s qd sh dev eth1 handle 1:
qdisc mq 1: root
 Sent 43534617319319 bytes 268186451819 pkt (dropped 0, overlimits 0 requeues 3532840114)
 backlog 1056Kb 6675p requeues 3532840114
qdisc mq 1: root
 Sent 43554665866695 bytes 268309964788 pkt (dropped 0, overlimits 0 requeues 3537737653)
 backlog 781164b 4822p requeues 3537737653

This is caused by try_bulk_dequeue_skb() being only limited by BQL budget.

perf record -C120-239 -e qdisc:qdisc_dequeue sleep 1 ; perf script
...
 netperf 75332 [146]  2711.138269: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1292 skbaddr=0xff378005a1e9f200
 netperf 75332 [146]  2711.138953: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1213 skbaddr=0xff378004d607a500
 netperf 75330 [144]  2711.139631: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1233 skbaddr=0xff3780046be20100
 netperf 75333 [147]  2711.140356: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1093 skbaddr=0xff37800514845b00
 netperf 75337 [151]  2711.141037: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1353 skbaddr=0xff37800460753300
 netperf 75337 [151]  2711.141877: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1367 skbaddr=0xff378004e72c7b00
 netperf 75330 [144]  2711.142643: qdisc:qdisc_dequeue: dequeue ifindex=5 qdisc handle=0x80150000 parent=0x10013 txq_state=0x0 packets=1202 skbaddr=0xff3780045bd60000
...

This is bad because :

1) Large batches hold one victim cpu for a very long time.

2) Driver often hit their own TX ring limit (all slots are used).

3) We call dev_requeue_skb()

4) Requeues are using a FIFO (q->gso_skb), breaking qdisc ability to
   implement FQ or priority scheduling.

5) dequeue_skb() gets packets from q->gso_skb one skb at a time
   with no xmit_more support. This is causing many spinlock games
   between the qdisc and the device driver.

Requeues were supposed to be very rare, lets keep them this way.

Limit batch sizes to /proc/sys/net/core/dev_weight (default 64) as
__qdisc_run() was designed to use.

Fixes: 5772e9a346 ("qdisc: bulk dequeue support for qdiscs with TCQ_F_ONETXQUEUE")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://patch.msgid.link/20251109161215.2574081-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-11 17:56:50 -08:00
Magnus Lindholm
d58041d2c6 MAINTAINERS: Add Magnus Lindholm as maintainer for alpha port
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2025-11-11 20:52:04 -05:00