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Author SHA1 Message Date
Linus Torvalds
3ad66a34cc io_uring-7.0-20260305 
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Merge tag 'io_uring-7.0-20260305' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a typo in the mock_file help text

 - Fix a comment regarding IORING_SETUP_TASKRUN_FLAG in the
   io_uring.h UAPI header

 - Use READ_ONCE() for reading refill queue entries

 - Reject SEND_VECTORIZED for fixed buffer sends, as it isn't
   implemented. Currently this flag is silently ignored

   This is in preparation for making these work, but first we
   need a fixup so that older kernels will correctly reject them

 - Ensure "0" means default for the rx page size

* tag 'io_uring-7.0-20260305' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/zcrx: use READ_ONCE with user shared RQEs
  io_uring/mock: Fix typo in help text
  io_uring/net: reject SEND_VECTORIZED when unsupported
  io_uring: correct comment for IORING_SETUP_TASKRUN_FLAG
  io_uring/zcrx: don't set rx_page_size when not requested
 2026-03-06 08:31:36 -08:00
Linus Torvalds
6170625149 Miscellaneous fixes: 
- Fix zero_vruntime tracking when there's a single task running
 
  - Fix slice protection logic
 
  - Fix the ->vprot logic for reniced tasks
 
  - Fix lag clamping in mixed slice workloads
 
  - Fix objtool uaccess warning (and bug) in the
    !CONFIG_RSEQ_SLICE_EXTENSION case caused by unexpected
    un-inlining, which triggers with older compilers
 
  - Fix a comment in the rseq registration rseq_size bound check code
 
  - Fix a legacy RSEQ ABI quirk that handled 32-byte area sizes
    differently, which special size we now reached naturally and
    want to avoid. The visible ugliness of the new reserved field
    will be avoided the next time the RSEQ area is extended.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix zero_vruntime tracking when there's a single task running

 - Fix slice protection logic

 - Fix the ->vprot logic for reniced tasks

 - Fix lag clamping in mixed slice workloads

 - Fix objtool uaccess warning (and bug) in the
   !CONFIG_RSEQ_SLICE_EXTENSION case caused by unexpected un-inlining,
   which triggers with older compilers

 - Fix a comment in the rseq registration rseq_size bound check code

 - Fix a legacy RSEQ ABI quirk that handled 32-byte area sizes
   differently, which special size we now reached naturally and want to
   avoid. The visible ugliness of the new reserved field will be avoided
   the next time the RSEQ area is extended.

* tag 'sched-urgent-2026-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rseq: slice ext: Ensure rseq feature size differs from original rseq size
  rseq: Clarify rseq registration rseq_size bound check comment
  sched/core: Fix wakeup_preempt's next_class tracking
  rseq: Mark rseq_arm_slice_extension_timer() __always_inline
  sched/fair: Fix lag clamp
  sched/eevdf: Update se->vprot in reweight_entity()
  sched/fair: Only set slice protection at pick time
  sched/fair: Fix zero_vruntime tracking
 2026-03-01 11:09:24 -08:00
Jens Axboe
0ed2e8bf61 io_uring: correct comment for IORING_SETUP_TASKRUN_FLAG 
Sync with a recent liburing fix, which corrects the comment explaining
when the IORING_SETUP_TASKRUN_FLAG setup flag is valid to use. May be
use with COOP_TASKRUN or DEFER_TASKRUN, not useful without either of
this task_work mechanisms being used.

Link: https://github.com/axboe/liburing/pull/1543
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2026-02-28 04:56:20 -07:00
Linus Torvalds
1c63df24be pci-v7.0-fixes-2 
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Merge tag 'pci-v7.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci fixes from Bjorn Helgaas:

 - Update MAINTAINERS email address (Shawn Guo)

 - Refresh cached Endpoint driver MSI Message Address to fix a v7.0
   regression when kernel changes the address after firmware has
   configured it (Niklas Cassel)

 - Flush Endpoint MSI-X writes so they complete before the outbound ATU
   entry is unmapped (Niklas Cassel)

 - Correct the PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 value, which broke VMM use
   of PCI capabilities (Bjorn Helgaas)

* tag 'pci-v7.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI: Correct PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 value
  PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry
  PCI: dwc: ep: Refresh MSI Message Address cache on change
  MAINTAINERS: Update Shawn Guo's address for HiSilicon PCIe controller driver
 2026-02-27 13:32:52 -08:00
Bjorn Helgaas
39195990e4 PCI: Correct PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 value 
fb82437fdd ("PCI: Change capability register offsets to hex") incorrectly
converted the PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 value from decimal 52 to hex
0x32:

  -#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 52      /* v2 endpoints with link end here */
  +#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x32    /* end of v2 EPs w/ link */

This broke PCI capabilities in a VMM because subsequent ones weren't
DWORD-aligned.

Change PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 to the correct value of 0x34.

fb82437fdd was from Baruch Siach <baruch@tkos.co.il>, but this was not
Baruch's fault; it's a mistake I made when applying the patch.

Fixes: fb82437fdd ("PCI: Change capability register offsets to hex")
Reported-by: David Woodhouse <dwmw2@infradead.org>
Closes: https://lore.kernel.org/all/3ae392a0158e9d9ab09a1d42150429dd8ca42791.camel@infradead.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
 2026-02-27 10:24:25 -06:00
Mathieu Desnoyers
3b68df9781 rseq: slice ext: Ensure rseq feature size differs from original rseq size 
Before rseq became extensible, its original size was 32 bytes even
though the active rseq area was only 20 bytes. This had the following
impact in terms of userspace ecosystem evolution:

* The GNU libc between 2.35 and 2.39 expose a __rseq_size symbol set
  to 32, even though the size of the active rseq area is really 20.
* The GNU libc 2.40 changes this __rseq_size to 20, thus making it
  express the active rseq area.
* Starting from glibc 2.41, __rseq_size corresponds to the
  AT_RSEQ_FEATURE_SIZE from getauxval(3).

This means that users of __rseq_size can always expect it to
correspond to the active rseq area, except for the value 32, for
which the active rseq area is 20 bytes.

Exposing a 32 bytes feature size would make life needlessly painful
for userspace. Therefore, add a reserved field at the end of the
rseq area to bump the feature size to 33 bytes. This reserved field
is expected to be replaced with whatever field will come next,
expecting that this field will be larger than 1 byte.

The effect of this change is to increase the size from 32 to 64 bytes
before we actually have fields using that memory.

Clarify the allocation size and alignment requirements in the struct
rseq uapi comment.

Change the value returned by getauxval(AT_RSEQ_ALIGN) to return the
value of the active rseq area size rounded up to next power of 2, which
guarantees that the rseq structure will always be aligned on the nearest
power of two large enough to contain it, even as it grows. Change the
alignment check in the rseq registration accordingly.

This will minimize the amount of ABI corner-cases we need to document
and require userspace to play games with. The rule stays simple when
__rseq_size != 32:

  #define rseq_field_available(field)	(__rseq_size >= offsetofend(struct rseq_abi, field))

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260220200642.1317826-3-mathieu.desnoyers@efficios.com
 2026-02-23 11:19:19 +01:00
Maxime Ripard
c17ee635fd
Merge drm/drm-fixes into drm-misc-fixes 
7.0-rc1 was just released, let's merge it to kick the new release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
 2026-02-23 10:09:45 +01:00
Linus Torvalds
d4a292c5f8 drm next fixes for 7.0-rc1 
pagemap:
 - drm/pagemap: pass pagemap_addr by reference
 
 amdgpu:
 - DML 2.1 fixes
 - Panel replay fixes
 - Display writeback fixes
 - MES 11 old firmware compat fix
 - DC CRC improvements
 - DPIA fixes
 - XGMI fixes
 - ASPM fix
 - SMU feature bit handling fixes
 - DC LUT fixes
 - RAS fixes
 - Misc memory leak in error path fixes
 - SDMA queue reset fixes
 - PG handling fixes
 - 5 level GPUVM page table fix
 - SR-IOV fix
 - Queue reset fix
 - SMU 13.x fixes
 - DC resume lag fix
 - MPO fixes
 - DCN 3.6 fix
 - VSDB fixes
 - HWSS clean up
 - Replay fixes
 - DCE cursor fixes
 - DCN 3.5 SR DDR5 latency fixes
 - HPD fixes
 - Error path unwind fixes
 - SMU13/14 mode1 reset fixes
 - PSP 15 updates
 - SMU 15 updates
 - Sync fix in amdgpu_dma_buf_move_notify()
 - HAINAN fix
 - PSP 13.x fix
 - GPUVM locking fix
 - Fixes for DC analog support
 - DC FAMS fixes
 - DML 2.1 fixes
 - eDP fixes
 - Misc DC fixes
 - Fastboot fix
 - 3DLUT fixes
 - GPUVM fixes
 - 64bpp format fix
 - Fix for MacBooks with switchable gfx
 
 amdkfd:
 - Fix possible double deletion of validate list
 - Event setup fix
 - Device disconnect regression fix
 - APU GTT as VRAM fix
 - Fix piority inversion with MQDs
 - NULL check fix
 
 radeon:
 - HAINAN fix
 
 i915/xe display:
 - Regresion fix for HDR 4k displays (#15503)
 - Fixup for Dell XPS 13 7390 eDP rate limit
 - Memory leak fix on ACPI _DSM handling
 - Add missing slice count check during DP mode validation
 
 xe:
 - drm/xe: Prevent VFs from exposing the CCS mode sysfs file
 - SRIOV related fixes
 - PAT cache fix
 - MMIO read fix
 - W/a fixes
 - Adjust type of xe_modparam.force_vram_bar_size
 - Wedge mode fix
 - HWMon fix
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Merge tag 'drm-next-2026-02-21' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "This is the fixes and cleanups for the end of the merge window, it's
  nearly all amdgpu, with some amdkfd, then a pagemap core fix, i915/xe
  display fixes, and some xe driver fixes.

  Nothing seems out of the ordinary, except amdgpu is a little more
  volume than usual.

  pagemap:
   - drm/pagemap: pass pagemap_addr by reference

  amdgpu:
   - DML 2.1 fixes
   - Panel replay fixes
   - Display writeback fixes
   - MES 11 old firmware compat fix
   - DC CRC improvements
   - DPIA fixes
   - XGMI fixes
   - ASPM fix
   - SMU feature bit handling fixes
   - DC LUT fixes
   - RAS fixes
   - Misc memory leak in error path fixes
   - SDMA queue reset fixes
   - PG handling fixes
   - 5 level GPUVM page table fix
   - SR-IOV fix
   - Queue reset fix
   - SMU 13.x fixes
   - DC resume lag fix
   - MPO fixes
   - DCN 3.6 fix
   - VSDB fixes
   - HWSS clean up
   - Replay fixes
   - DCE cursor fixes
   - DCN 3.5 SR DDR5 latency fixes
   - HPD fixes
   - Error path unwind fixes
   - SMU13/14 mode1 reset fixes
   - PSP 15 updates
   - SMU 15 updates
   - Sync fix in amdgpu_dma_buf_move_notify()
   - HAINAN fix
   - PSP 13.x fix
   - GPUVM locking fix
   - Fixes for DC analog support
   - DC FAMS fixes
   - DML 2.1 fixes
   - eDP fixes
   - Misc DC fixes
   - Fastboot fix
   - 3DLUT fixes
   - GPUVM fixes
   - 64bpp format fix
   - Fix for MacBooks with switchable gfx

  amdkfd:
   - Fix possible double deletion of validate list
   - Event setup fix
   - Device disconnect regression fix
   - APU GTT as VRAM fix
   - Fix piority inversion with MQDs
   - NULL check fix

  radeon:
   - HAINAN fix

  i915/xe display:
   - Regresion fix for HDR 4k displays (#15503)
   - Fixup for Dell XPS 13 7390 eDP rate limit
   - Memory leak fix on ACPI _DSM handling
   - Add missing slice count check during DP mode validation

  xe:
   - drm/xe: Prevent VFs from exposing the CCS mode sysfs file
   - SRIOV related fixes
   - PAT cache fix
   - MMIO read fix
   - W/a fixes
   - Adjust type of xe_modparam.force_vram_bar_size
   - Wedge mode fix
   - HWMon fix

* tag 'drm-next-2026-02-21' of https://gitlab.freedesktop.org/drm/kernel: (143 commits)
  drm/amd/display: Remove unneeded DAC link encoder register
  drm/amd/display: Enable DAC in DCE link encoder
  drm/amd/display: Set CRTC source for DAC using registers
  drm/amd/display: Initialize DAC in DCE link encoder using VBIOS
  drm/amd/display: Turn off DAC in DCE link encoder using VBIOS
  drm/amd/display: Don't call find_analog_engine() twice
  drm/amdgpu: fix 4-level paging if GMC supports 57-bit VA v2
  drm/amdgpu: keep vga memory on MacBooks with switchable graphics
  drm/amdgpu: Set atomics to true for xgmi
  drm/amdkfd: Check for NULL return values
  drm/amd/display: Use same max plane scaling limits for all 64 bpp formats
  drm/amdgpu: Set vmid0 PAGE_TABLE_DEPTH for GFX12.1
  drm/amdkfd: Disable MQD queue priority
  drm/amd/display: Remove conditional for shaper 3DLUT power-on
  drm/amd/display: Check return of shaper curve to HW format
  drm/amd/display: Correct logic check error for fastboot
  drm/amd/display: Skip eDP detection when no sink
  Revert "drm/amd/display: Add Gfx Base Case For Linear Tiling Handling"
  Revert "drm/amd/display: Correct hubp GfxVersion verification"
  Revert "drm/amd/display: Add Handling for gfxversion DcGfxBase"
  ...
 2026-02-20 15:36:38 -08:00
Linus Torvalds
d31558c077 hyperv-next for v7.0 
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Merge tag 'hyperv-next-signed-20260218' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull Hyper-V updates from Wei Liu:

 - Debugfs support for MSHV statistics (Nuno Das Neves)

 - Support for the integrated scheduler (Stanislav Kinsburskii)

 - Various fixes for MSHV memory management and hypervisor status
   handling (Stanislav Kinsburskii)

 - Expose more capabilities and flags for MSHV partition management
   (Anatol Belski, Muminul Islam, Magnus Kulke)

 - Miscellaneous fixes to improve code quality and stability (Carlos
   López, Ethan Nelson-Moore, Li RongQing, Michael Kelley, Mukesh
   Rathor, Purna Pavan Chandra Aekkaladevi, Stanislav Kinsburskii, Uros
   Bizjak)

 - PREEMPT_RT fixes for vmbus interrupts (Jan Kiszka)

* tag 'hyperv-next-signed-20260218' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (34 commits)
  mshv: Handle insufficient root memory hypervisor statuses
  mshv: Handle insufficient contiguous memory hypervisor status
  mshv: Introduce hv_deposit_memory helper functions
  mshv: Introduce hv_result_needs_memory() helper function
  mshv: Add SMT_ENABLED_GUEST partition creation flag
  mshv: Add nested virtualization creation flag
  Drivers: hv: vmbus: Simplify allocation of vmbus_evt
  mshv: expose the scrub partition hypercall
  mshv: Add support for integrated scheduler
  mshv: Use try_cmpxchg() instead of cmpxchg()
  x86/hyperv: Fix error pointer dereference
  x86/hyperv: Reserve 3 interrupt vectors used exclusively by MSHV
  Drivers: hv: vmbus: Use kthread for vmbus interrupts on PREEMPT_RT
  x86/hyperv: Remove ASM_CALL_CONSTRAINT with VMMCALL insn
  x86/hyperv: Use savesegment() instead of inline asm() to save segment registers
  mshv: fix SRCU protection in irqfd resampler ack handler
  mshv: make field names descriptive in a header struct
  x86/hyperv: Update comment in hyperv_cleanup()
  mshv: clear eventfd counter on irqfd shutdown
  x86/hyperv: Use memremap()/memunmap() instead of ioremap_cache()/iounmap()
  ...
 2026-02-20 08:48:31 -08:00
Linus Torvalds
8bf22c33e7 Including fixes from Netfilter. 
Current release - new code bugs:
 
  - net: fix backlog_unlock_irq_restore() vs CONFIG_PREEMPT_RT
 
  - eth: mlx5e: XSK, Fix unintended ICOSQ change
 
  - phy_port: correctly recompute the port's linkmodes
 
  - vsock: prevent child netns mode switch from local to global
 
  - couple of kconfig fixes for new symbols
 
 Previous releases - regressions:
 
  - nfc: nci: fix false-positive parameter validation for packet data
 
  - net: do not delay zero-copy skbs in skb_attempt_defer_free()
 
 Previous releases - always broken:
 
  - mctp: ensure our nlmsg responses to user space are zero-initialised
 
  - ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data()
 
  - fixes for ICMP rate limiting
 
 Misc:
 
  - intel: fix PCI device ID conflict between i40e and ipw2200
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from Netfilter.

  Current release - new code bugs:

   - net: fix backlog_unlock_irq_restore() vs CONFIG_PREEMPT_RT

   - eth: mlx5e: XSK, Fix unintended ICOSQ change

   - phy_port: correctly recompute the port's linkmodes

   - vsock: prevent child netns mode switch from local to global

   - couple of kconfig fixes for new symbols

  Previous releases - regressions:

   - nfc: nci: fix false-positive parameter validation for packet data

   - net: do not delay zero-copy skbs in skb_attempt_defer_free()

  Previous releases - always broken:

   - mctp: ensure our nlmsg responses to user space are zero-initialised

   - ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data()

   - fixes for ICMP rate limiting

  Misc:

   - intel: fix PCI device ID conflict between i40e and ipw2200"

* tag 'net-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
  net: nfc: nci: Fix parameter validation for packet data
  net/mlx5e: Use unsigned for mlx5e_get_max_num_channels
  net/mlx5e: Fix deadlocks between devlink and netdev instance locks
  net/mlx5e: MACsec, add ASO poll loop in macsec_aso_set_arm_event
  net/mlx5: Fix misidentification of write combining CQE during poll loop
  net/mlx5e: Fix misidentification of ASO CQE during poll loop
  net/mlx5: Fix multiport device check over light SFs
  bonding: alb: fix UAF in rlb_arp_recv during bond up/down
  bnge: fix reserving resources from FW
  eth: fbnic: Advertise supported XDP features.
  rds: tcp: fix uninit-value in __inet_bind
  net/rds: Fix NULL pointer dereference in rds_tcp_accept_one
  octeontx2-af: Fix default entries mcam entry action
  net/mlx5e: XSK, Fix unintended ICOSQ change
  ipv6: icmp: icmpv6_xrlim_allow() optimization if net.ipv6.icmp.ratelimit is zero
  ipv4: icmp: icmpv4_xrlim_allow() optimization if net.ipv4.icmp_ratelimit is zero
  ipv6: icmp: remove obsolete code in icmpv6_xrlim_allow()
  inet: move icmp_global_{credit,stamp} to a separate cache line
  icmp: prevent possible overflow in icmp_global_allow()
  selftests/net: packetdrill: add ipv4-mapped-ipv6 tests
  ...
 2026-02-19 10:39:08 -08:00
Anatol Belski
8927a108a7 mshv: Add SMT_ENABLED_GUEST partition creation flag 
Add support for HV_PARTITION_CREATION_FLAG_SMT_ENABLED_GUEST
to allow userspace VMMs to enable SMT for guest partitions.

Expose this via new MSHV_PT_BIT_SMT_ENABLED_GUEST flag in the UAPI.

Without this flag, the hypervisor schedules guest VPs incorrectly,
causing SMT unusable.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
 2026-02-18 23:54:37 +00:00
Muminul Islam
a284dbc96a mshv: Add nested virtualization creation flag 
Introduce HV_PARTITION_CREATION_FLAG_NESTED_VIRTUALIZATION_CAPABLE to
indicate support for nested virtualization during partition creation.

This enables clearer configuration and capability checks for nested
virtualization scenarios.

Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
 2026-02-18 23:53:22 +00:00
Linus Torvalds
e81dd54f62 dmaengine updates for v7.0 
Core:
   - Add Frank Li as susbstem reviewer to help with reviews
 
  New Support:
   - Mediatek support for Dimensity 6300 and 9200 controller
   - Qualcomm Kaanapali and Glymur GPI DMA engine support
   - Synopsis DW AXI Agilex5 support
   - Renesas RZ/V2N SoC support
   - Atmel microchip lan9691-dma support
   - Tegra ADMA tegra264 support
 
  Updates:
   - sg_nents_for_dma() helper use in subsystem
   - pm_runtime_mark_last_busy() redundant call update for subsystem
   - Residue support for xilinx AXIDMA driver
   - Intel Max SGL Size Support and capabilities for DSA3.0
   - AXI dma larger than 32bits address support
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Merge tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "Core:
   - Add Frank Li as susbstem reviewer to help with reviews

  New Support:
   - Mediatek support for Dimensity 6300 and 9200 controller
   - Qualcomm Kaanapali and Glymur GPI DMA engine
   - Synopsis DW AXI Agilex5
   - Renesas RZ/V2N SoC
   - Atmel microchip lan9691-dma
   - Tegra ADMA tegra264

  Updates:
   - sg_nents_for_dma() helper use in subsystem
   - pm_runtime_mark_last_busy() redundant call update for subsystem
   - Residue support for xilinx AXIDMA driver
   - Intel Max SGL Size Support and capabilities for DSA3.0
   - AXI dma larger than 32bits address support"

* tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (64 commits)
  dmaengine: add Frank Li as reviewer
  dt-bindings: dma: qcom,gpi: Update max interrupts lines to 16
  dmaengine: fsl-edma: don't explicitly disable clocks in .remove()
  dmaengine: xilinx: xdma: use sg_nents_for_dma() helper
  dmaengine: sh: use sg_nents_for_dma() helper
  dmaengine: sa11x0: use sg_nents_for_dma() helper
  dmaengine: qcom: bam_dma: use sg_nents_for_dma() helper
  dmaengine: qcom: adm: use sg_nents_for_dma() helper
  dmaengine: pxa-dma: use sg_nents_for_dma() helper
  dmaengine: lgm: use sg_nents_for_dma() helper
  dmaengine: k3dma: use sg_nents_for_dma() helper
  dmaengine: dw-axi-dmac: use sg_nents_for_dma() helper
  dmaengine: bcm2835-dma: use sg_nents_for_dma() helper
  dmaengine: axi-dmac: use sg_nents_for_dma() helper
  dmaengine: altera-msgdma: use sg_nents_for_dma() helper
  scatterlist: introduce sg_nents_for_dma() helper
  dmaengine: idxd: Add Max SGL Size Support for DSA3.0
  dmaengine: idxd: Expose DSA3.0 capabilities through sysfs
  dmaengine: sh: rz-dmac: Make channel irq local
  dmaengine: pl08x: Fix comment stating the difference between PL080 and PL081
  ...
 2026-02-17 11:47:17 -08:00
Linus Torvalds
505d195b0f Char/Misc/IIO driver changes for 7.0-rc1 
Here is the big set of char/misc/iio and other smaller driver subsystem
 changes for 7.0-rc1.  Lots of little things in here, including:
   - Loads of iio driver changes and updates and additions
   - gpib driver updates
   - interconnect driver updates
   - i3c driver updates
   - hwtracing (coresight and intel) driver updates
   - deletion of the obsolete mwave driver
   - binder driver updates (rust and c versions)
   - mhi driver updates (causing a merge conflict, see below)
   - mei driver updates
   - fsi driver updates
   - eeprom driver updates
   - lots of other small char and misc driver updates and cleanups
 
 All of these have been in linux-next for a while, with no reported
 issues except for a merge conflict with your tree due to the mhi driver
 changes in the drivers/net/wireless/ath/ath12k/mhi.c file.  To fix that
 up, just delete the "auto_queue" structure fields being set, see this
 message for the full change needed:
 	https://lore.kernel.org/r/aXD6X23btw8s-RZP@sirena.org.uk
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc/IIO driver updates from Greg KH:
 "Here is the big set of char/misc/iio and other smaller driver
  subsystem changes for 7.0-rc1. Lots of little things in here,
  including:

   - Loads of iio driver changes and updates and additions

   - gpib driver updates

   - interconnect driver updates

   - i3c driver updates

   - hwtracing (coresight and intel) driver updates

   - deletion of the obsolete mwave driver

   - binder driver updates (rust and c versions)

   - mhi driver updates (causing a merge conflict, see below)

   - mei driver updates

   - fsi driver updates

   - eeprom driver updates

   - lots of other small char and misc driver updates and cleanups

  All of these have been in linux-next for a while, with no reported
  issues"

* tag 'char-misc-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (297 commits)
  mux: mmio: fix regmap leak on probe failure
  rust_binder: return p from rust_binder_transaction_target_node()
  drivers: android: binder: Update ARef imports from sync::aref
  rust_binder: fix needless borrow in context.rs
  iio: magn: mmc5633: Fix Kconfig for combination of I3C as module and driver builtin
  iio: sca3000: Fix a resource leak in sca3000_probe()
  iio: proximity: rfd77402: Add interrupt handling support
  iio: proximity: rfd77402: Document device private data structure
  iio: proximity: rfd77402: Use devm-managed mutex initialization
  iio: proximity: rfd77402: Use kernel helper for result polling
  iio: proximity: rfd77402: Align polling timeout with datasheet
  iio: cros_ec: Allow enabling/disabling calibration mode
  iio: frequency: ad9523: correct kernel-doc bad line warning
  iio: buffer: buffer_impl.h: fix kernel-doc warnings
  iio: gyro: itg3200: Fix unchecked return value in read_raw
  MAINTAINERS: add entry for ADE9000 driver
  iio: accel: sca3000: remove unused last_timestamp field
  iio: accel: adxl372: remove unused int2_bitmask field
  iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll()
  iio: magnetometer: Remove IRQF_ONESHOT
  ...
 2026-02-17 09:11:04 -08:00
Linus Torvalds
7b751b01ad io_uring-7.0-20260216 
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Merge tag 'io_uring-7.0-20260216' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull more io_uring updates from Jens Axboe:
 "This is a mix of cleanups and fixes. No major fixes in here, just a
  bunch of little fixes. Some of them marked for stable as it fixes
  behavioral issues

   - Fix an issue with SOCKET_URING_OP_SETSOCKOPT for netlink sockets,
     due to a too restrictive check on it having an ioctl handler

   - Remove a redundant SQPOLL check in ring creation

   - Kill dead accounting for zero-copy send, which doesn't use ->buf
     or ->len post the initial setup

   - Fix missing clamp of the allocation hint, which could cause
     allocations to fall outside of the range the application asked
     for. Still within the allowed limits.

   - Fix for IORING_OP_PIPE's handling of direct descriptors

   - Tweak to the API for the newly added BPF filters, making them
     more future proof in terms of how applications deal with them

   - A few fixes for zcrx, fixing a few error handling conditions

   - Fix for zcrx request flag checking

   - Add support for querying the zcrx page size

   - Improve the NO_SQARRAY static branch inc/dec, avoiding busy
     conditions causing too much traffic

   - Various little cleanups"

* tag 'io_uring-7.0-20260216' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/bpf_filter: pass in expected filter payload size
  io_uring/bpf_filter: move filter size and populate helper into struct
  io_uring/cancel: de-unionize file and user_data in struct io_cancel_data
  io_uring/rsrc: improve regbuf iov validation
  io_uring: remove unneeded io_send_zc accounting
  io_uring/cmd_net: fix too strict requirement on ioctl
  io_uring: delay sqarray static branch disablement
  io_uring/query: add query.h copyright notice
  io_uring/query: return support for custom rx page size
  io_uring/zcrx: check unsupported flags on import
  io_uring/zcrx: fix post open error handling
  io_uring/zcrx: fix sgtable leak on mapping failures
  io_uring: use the right type for creds iteration
  io_uring/openclose: fix io_pipe_fixed() slot tracking for specific slots
  io_uring/filetable: clamp alloc_hint to the configured alloc range
  io_uring/rsrc: replace reg buffer bit field with flags
  io_uring/zcrx: improve types for size calculation
  io_uring/tctx: avoid modifying loop variable in io_ring_add_registered_file
  io_uring: simplify IORING_SETUP_DEFER_TASKRUN && !SQPOLL check
 2026-02-17 08:33:49 -08:00
Phil Sutter
4edd4ba71c include: uapi: netfilter_bridge.h: Cover for musl libc 
Musl defines its own struct ethhdr and thus defines __UAPI_DEF_ETHHDR to
zero. To avoid struct redefinition errors, user space is therefore
supposed to include netinet/if_ether.h before (or instead of)
linux/if_ether.h. To relieve them from this burden, include the libc
header here if not building for kernel space.

Reported-by: Alyssa Ross <hi@alyssa.is>
Suggested-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
 2026-02-17 15:04:20 +01:00
Jens Axboe
be3573124e io_uring/bpf_filter: pass in expected filter payload size 
It's quite possible that opcodes that have payloads attached to them,
like IORING_OP_OPENAT/OPENAT2 or IORING_OP_SOCKET, that these paylods
can change over time. For example, on the openat/openat2 side, the
struct open_how argument is extensible, and could be extended in the
future to allow further arguments to be passed in.

Allow registration of a cBPF filter to give the size of the filter as
seen by userspace. If that filter is for an opcode that takes extra
payload data, allow it if the application payload expectation is the
same size than the kernels. If that is the case, the kernel supports
filtering on the payload that the application expects. If the size
differs, the behavior depends on the IO_URING_BPF_FILTER_SZ_STRICT flag:

1) If IO_URING_BPF_FILTER_SZ_STRICT is set and the size expectation
   differs, fail the attempt to load the filter.

2) If IO_URING_BPF_FILTER_SZ_STRICT isn't set, allow the filter if
   the userspace pdu size is smaller than what the kernel offers.

3) Regardless if IO_URING_BPF_FILTER_SZ_STRICT, fail loading the filter
   if the userspace pdu size is bigger than what the kernel supports.

An attempt to load a filter due to sizing will error with -EMSGSIZE.
For that error, the registration struct will have filter->pdu_size
populated with the pdu size that the kernel uses.

Reported-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2026-02-16 15:56:31 -07:00
Linus Torvalds
45a43ac5ac vfs-7.0-rc1.misc.2 
Please consider pulling these changes from the signed vfs-7.0-rc1.misc.2 tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.0-rc1.misc.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull more misc vfs updates from Christian Brauner:
 "Features:

   - Optimize close_range() from O(range size) to O(active FDs) by using
     find_next_bit() on the open_fds bitmap instead of linearly scanning
     the entire requested range. This is a significant improvement for
     large-range close operations on sparse file descriptor tables.

   - Add FS_XFLAG_VERITY file attribute for fs-verity files, retrievable
     via FS_IOC_FSGETXATTR and file_getattr(). The flag is read-only.
     Add tracepoints for fs-verity enable and verify operations,
     replacing the previously removed debug printk's.

   - Prevent nfsd from exporting special kernel filesystems like pidfs
     and nsfs. These filesystems have custom ->open() and ->permission()
     export methods that are designed for open_by_handle_at(2) only and
     are incompatible with nfsd. Update the exportfs documentation
     accordingly.

  Fixes:

   - Fix KMSAN uninit-value in ovl_fill_real() where strcmp() was used
     on a non-null-terminated decrypted directory entry name from
     fscrypt. This triggered on encrypted lower layers when the
     decrypted name buffer contained uninitialized tail data.

     The fix also adds VFS-level name_is_dot(), name_is_dotdot(), and
     name_is_dot_dotdot() helpers, replacing various open-coded "." and
     ".." checks across the tree.

   - Fix read-only fsflags not being reset together with xflags in
     vfs_fileattr_set(). Currently harmless since no read-only xflags
     overlap with flags, but this would cause inconsistencies for any
     future shared read-only flag

   - Return -EREMOTE instead of -ESRCH from PIDFD_GET_INFO when the
     target process is in a different pid namespace. This lets userspace
     distinguish "process exited" from "process in another namespace",
     matching glibc's pidfd_getpid() behavior

  Cleanups:

   - Use C-string literals in the Rust seq_file bindings, replacing the
     kernel::c_str!() macro (available since Rust 1.77)

   - Fix typo in d_walk_ret enum comment, add porting notes for the
     readlink_copy() calling convention change"

* tag 'vfs-7.0-rc1.misc.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: add porting notes about readlink_copy()
  pidfs: return -EREMOTE when PIDFD_GET_INFO is called on another ns
  nfsd: do not allow exporting of special kernel filesystems
  exportfs: clarify the documentation of open()/permission() expotrfs ops
  fsverity: add tracepoints
  fs: add FS_XFLAG_VERITY for fs-verity files
  rust: seq_file: replace `kernel::c_str!` with C-Strings
  fs: dcache: fix typo in enum d_walk_ret comment
  ovl: use name_is_dot* helpers in readdir code
  fs: add helpers name_is_dot{,dot,_dotdot}
  ovl: Fix uninit-value in ovl_fill_real
  fs: reset read-only fsflags together with xflags
  fs/file: optimize close_range() complexity from O(N) to O(Sparse)
 2026-02-16 13:00:36 -08:00
Pavel Begunkov
6b34f8edf8 io_uring/query: add query.h copyright notice 
Add a copyright notice to io_uring's query uapi header.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2026-02-15 14:55:44 -07:00
Pavel Begunkov
c29214677a io_uring/query: return support for custom rx page size 
Add an ability to query if the zcrx rx page size setting is available.

Note, even when the API is supported by io_uring, the registration can
still get rejected for various reasons, e.g. when the NIC or the driver
doesn't support it, when the particular specified size is unsupported,
when the memory area doesn't satisfy all requirements, etc.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2026-02-15 14:55:37 -07:00
Simon Ser
e9e0b48cd1 drm/fourcc: fix plane order for 10/12/16-bit YCbCr formats 
The short comments had the correct order, but the long comments
had the planes reversed.

Fixes: 2271e0a20e ("drm: drm_fourcc: add 10/12/16bit software decoder YCbCr formats")
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Robert Mader <robert.mader@collabora.com>
Link: https://patch.msgid.link/20260208224718.57199-1-contact@emersion.fr
 2026-02-14 11:11:30 +01:00
Linus Torvalds
a353e7260b virtio,vhost,vdpa: features, fixes 
- in order support in virtio core
 - multiple address space support in vduse
 - fixes, cleanups all over the place, notably
   - dma alignment fixes for non cache coherent systems
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:

 - in-order support in virtio core

 - multiple address space support in vduse

 - fixes, cleanups all over the place, notably dma alignment fixes for
   non-cache-coherent systems

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (59 commits)
  vduse: avoid adding implicit padding
  vhost: fix caching attributes of MMIO regions by setting them explicitly
  vdpa/mlx5: update MAC address handling in mlx5_vdpa_set_attr()
  vdpa/mlx5: reuse common function for MAC address updates
  vdpa/mlx5: update mlx_features with driver state check
  crypto: virtio: Replace package id with numa node id
  crypto: virtio: Remove duplicated virtqueue_kick in virtio_crypto_skcipher_crypt_req
  crypto: virtio: Add spinlock protection with virtqueue notification
  Documentation: Add documentation for VDUSE Address Space IDs
  vduse: bump version number
  vduse: add vq group asid support
  vduse: merge tree search logic of IOTLB_GET_FD and IOTLB_GET_INFO ioctls
  vduse: take out allocations from vduse_dev_alloc_coherent
  vduse: remove unused vaddr parameter of vduse_domain_free_coherent
  vduse: refactor vdpa_dev_add for goto err handling
  vhost: forbid change vq groups ASID if DRIVER_OK is set
  vdpa: document set_group_asid thread safety
  vduse: return internal vq group struct as map token
  vduse: add vq group support
  vduse: add v1 API definition
  ...
 2026-02-13 12:02:18 -08:00
Linus Torvalds
cb5573868e Loongarch: 
- Add more CPUCFG mask bits.
 
 - Improve feature detection.
 
 - Add lazy load support for FPU and binary translation (LBT) register state.
 
 - Fix return value for memory reads from and writes to in-kernel devices.
 
 - Add support for detecting preemption from within a guest.
 
 - Add KVM steal time test case to tools/selftests.
 
 ARM:
 
 - Add support for FEAT_IDST, allowing ID registers that are not
   implemented to be reported as a normal trap rather than as an UNDEF
   exception.
 
 - Add sanitisation of the VTCR_EL2 register, fixing a number of
   UXN/PXN/XN bugs in the process.
 
 - Full handling of RESx bits, instead of only RES0, and resulting in
   SCTLR_EL2 being added to the list of sanitised registers.
 
 - More pKVM fixes for features that are not supposed to be exposed to
   guests.
 
 - Make sure that MTE being disabled on the pKVM host doesn't give it
   the ability to attack the hypervisor.
 
 - Allow pKVM's host stage-2 mappings to use the Force Write Back
   version of the memory attributes by using the "pass-through'
   encoding.
 
 - Fix trapping of ICC_DIR_EL1 on GICv5 hosts emulating GICv3 for the
   guest.
 
 - Preliminary work for guest GICv5 support.
 
 - A bunch of debugfs fixes, removing pointless custom iterators stored
   in guest data structures.
 
 - A small set of FPSIMD cleanups.
 
 - Selftest fixes addressing the incorrect alignment of page
   allocation.
 
 - Other assorted low-impact fixes and spelling fixes.
 
 RISC-V:
 
 - Fixes for issues discoverd by KVM API fuzzing in
   kvm_riscv_aia_imsic_has_attr(), kvm_riscv_aia_imsic_rw_attr(),
   and kvm_riscv_vcpu_aia_imsic_update()
 
 - Allow Zalasr, Zilsd and Zclsd extensions for Guest/VM
 
 - Transparent huge page support for hypervisor page tables
 
 - Adjust the number of available guest irq files based on MMIO
   register sizes found in the device tree or the ACPI tables
 
 - Add RISC-V specific paging modes to KVM selftests
 
 - Detect paging mode at runtime for selftests
 
 s390:
 
 - Performance improvement for vSIE (aka nested virtualization)
 
 - Completely new memory management.  s390 was a special snowflake that enlisted
   help from the architecture's page table management to build hypervisor
   page tables, in particular enabling sharing the last level of page
   tables.  This however was a lot of code (~3K lines) in order to support
   KVM, and also blocked several features.  The biggest advantages is
   that the page size of userspace is completely independent of the
   page size used by the guest: userspace can mix normal pages, THPs and
   hugetlbfs as it sees fit, and in fact transparent hugepages were not
   possible before.  It's also now possible to have nested guests and
   guests with huge pages running on the same host.
 
 - Maintainership change for s390 vfio-pci
 
 - Small quality of life improvement for protected guests
 
 x86:
 
 - Add support for giving the guest full ownership of PMU hardware (contexted
   switched around the fastpath run loop) and allowing direct access to data
   MSRs and PMCs (restricted by the vPMU model).  KVM still intercepts
   access to control registers, e.g. to enforce event filtering and to
   prevent the guest from profiling sensitive host state.  This is more
   accurate, since it has no risk of contention and thus dropped events, and
   also has significantly less overhead.
 
   For more information, see the commit message for merge commit bf2c3138ae
   ("Merge tag 'kvm-x86-pmu-6.20' of https://github.com/kvm-x86/linux into HEAD").
 
 - Disallow changing the virtual CPU model if L2 is active, for all the same
   reasons KVM disallows change the model after the first KVM_RUN.
 
 - Fix a bug where KVM would incorrectly reject host accesses to PV MSRs
   when running with KVM_CAP_ENFORCE_PV_FEATURE_CPUID enabled, even if those
   were advertised as supported to userspace,
 
 - Fix a bug with protected guest state (SEV-ES/SNP and TDX) VMs, where KVM
   would attempt to read CR3 configuring an async #PF entry.
 
 - Fail the build if EXPORT_SYMBOL_GPL or EXPORT_SYMBOL is used in KVM (for x86
   only) to enforce usage of EXPORT_SYMBOL_FOR_KVM_INTERNAL.  Only a few exports
   that are intended for external usage, and those are allowed explicitly.
 
 - When checking nested events after a vCPU is unblocked, ignore -EBUSY instead
   of WARNing.  Userspace can sometimes put the vCPU into what should be an
   impossible state, and spurious exit to userspace on -EBUSY does not really
   do anything to solve the issue.
 
 - Also throw in the towel and drop the WARN on INIT/SIPI being blocked when vCPU
   is in Wait-For-SIPI, which also resulted in playing whack-a-mole with syzkaller
   stuffing architecturally impossible states into KVM.
 
 - Add support for new Intel instructions that don't require anything beyond
   enumerating feature flags to userspace.
 
 - Grab SRCU when reading PDPTRs in KVM_GET_SREGS2.
 
 - Add WARNs to guard against modifying KVM's CPU caps outside of the intended
   setup flow, as nested VMX in particular is sensitive to unexpected changes
   in KVM's golden configuration.
 
 - Add a quirk to allow userspace to opt-in to actually suppress EOI broadcasts
   when the suppression feature is enabled by the guest (currently limited to
   split IRQCHIP, i.e. userspace I/O APIC).  Sadly, simply fixing KVM to honor
   Suppress EOI Broadcasts isn't an option as some userspaces have come to rely
   on KVM's buggy behavior (KVM advertises Supress EOI Broadcast irrespective
   of whether or not userspace I/O APIC supports Directed EOIs).
 
 - Clean up KVM's handling of marking mapped vCPU pages dirty.
 
 - Drop a pile of *ancient* sanity checks hidden behind in KVM's unused
   ASSERT() macro, most of which could be trivially triggered by the guest
   and/or user, and all of which were useless.
 
 - Fold "struct dest_map" into its sole user, "struct rtc_status", to make it
   more obvious what the weird parameter is used for, and to allow fropping
   these RTC shenanigans if CONFIG_KVM_IOAPIC=n.
 
 - Bury all of ioapic.h, i8254.h and related ioctls (including
   KVM_CREATE_IRQCHIP) behind CONFIG_KVM_IOAPIC=y.
 
 - Add a regression test for recent APICv update fixes.
 
 - Handle "hardware APIC ISR", a.k.a. SVI, updates in kvm_apic_update_apicv()
   to consolidate the updates, and to co-locate SVI updates with the updates
   for KVM's own cache of ISR information.
 
 - Drop a dead function declaration.
 
 - Minor cleanups.
 
 x86 (Intel):
 
 - Rework KVM's handling of VMCS updates while L2 is active to temporarily
   switch to vmcs01 instead of deferring the update until the next nested
   VM-Exit.  The deferred updates approach directly contributed to several
   bugs, was proving to be a maintenance burden due to the difficulty in
   auditing the correctness of deferred updates, and was polluting
   "struct nested_vmx" with a growing pile of booleans.
 
 - Fix an SGX bug where KVM would incorrectly try to handle EPCM page faults,
   and instead always reflect them into the guest.  Since KVM doesn't shadow
   EPCM entries, EPCM violations cannot be due to KVM interference and
   can't be resolved by KVM.
 
 - Fix a bug where KVM would register its posted interrupt wakeup handler even
   if loading kvm-intel.ko ultimately failed.
 
 - Disallow access to vmcb12 fields that aren't fully supported, mostly to
   avoid weirdness and complexity for FRED and other features, where KVM wants
   enable VMCS shadowing for fields that conditionally exist.
 
 - Print out the "bad" offsets and values if kvm-intel.ko refuses to load (or
   refuses to online a CPU) due to a VMCS config mismatch.
 
 x86 (AMD):
 
 - Drop a user-triggerable WARN on nested_svm_load_cr3() failure.
 
 - Add support for virtualizing ERAPS.  Note, correct virtualization of ERAPS
   relies on an upcoming, publicly announced change in the APM to reduce the
   set of conditions where hardware (i.e. KVM) *must* flush the RAP.
 
 - Ignore nSVM intercepts for instructions that are not supported according to
   L1's virtual CPU model.
 
 - Add support for expedited writes to the fast MMIO bus, a la VMX's fastpath
   for EPT Misconfig.
 
 - Don't set GIF when clearing EFER.SVME, as GIF exists independently of SVM,
   and allow userspace to restore nested state with GIF=0.
 
 - Treat exit_code as an unsigned 64-bit value through all of KVM.
 
 - Add support for fetching SNP certificates from userspace.
 
 - Fix a bug where KVM would use vmcb02 instead of vmcb01 when emulating VMLOAD
   or VMSAVE on behalf of L2.
 
 - Misc fixes and cleanups.
 
 x86 selftests:
 
 - Add a regression test for TPR<=>CR8 synchronization and IRQ masking.
 
 - Overhaul selftest's MMU infrastructure to genericize stage-2 MMU support,
   and extend x86's infrastructure to support EPT and NPT (for L2 guests).
 
 - Extend several nested VMX tests to also cover nested SVM.
 
 - Add a selftest for nested VMLOAD/VMSAVE.
 
 - Rework the nested dirty log test, originally added as a regression test for
   PML where KVM logged L2 GPAs instead of L1 GPAs, to improve test coverage
   and to hopefully make the test easier to understand and maintain.
 
 guest_memfd:
 
 - Remove kvm_gmem_populate()'s preparation tracking and half-baked hugepage
   handling.  SEV/SNP was the only user of the tracking and it can do it via
   the RMP.
 
 - Retroactively document and enforce (for SNP) that KVM_SEV_SNP_LAUNCH_UPDATE
   and KVM_TDX_INIT_MEM_REGION require the source page to be 4KiB aligned, to
   avoid non-trivial complexity for something that no known VMM seems to be
   doing and to avoid an API special case for in-place conversion, which
   simply can't support unaligned sources.
 
 - When populating guest_memfd memory, GUP the source page in common code and
   pass the refcounted page to the vendor callback, instead of letting vendor
   code do the heavy lifting.  Doing so avoids a looming deadlock bug with
   in-place due an AB-BA conflict betwee mmap_lock and guest_memfd's filemap
   invalidate lock.
 
 Generic:
 
 - Fix a bug where KVM would ignore the vCPU's selected address space when
   creating a vCPU-specific mapping of guest memory.  Actually this bug
   could not be hit even on x86, the only architecture with multiple
   address spaces, but it's a bug nevertheless.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "Loongarch:

   - Add more CPUCFG mask bits

   - Improve feature detection

   - Add lazy load support for FPU and binary translation (LBT) register
     state

   - Fix return value for memory reads from and writes to in-kernel
     devices

   - Add support for detecting preemption from within a guest

   - Add KVM steal time test case to tools/selftests

  ARM:

   - Add support for FEAT_IDST, allowing ID registers that are not
     implemented to be reported as a normal trap rather than as an UNDEF
     exception

   - Add sanitisation of the VTCR_EL2 register, fixing a number of
     UXN/PXN/XN bugs in the process

   - Full handling of RESx bits, instead of only RES0, and resulting in
     SCTLR_EL2 being added to the list of sanitised registers

   - More pKVM fixes for features that are not supposed to be exposed to
     guests

   - Make sure that MTE being disabled on the pKVM host doesn't give it
     the ability to attack the hypervisor

   - Allow pKVM's host stage-2 mappings to use the Force Write Back
     version of the memory attributes by using the "pass-through'
     encoding

   - Fix trapping of ICC_DIR_EL1 on GICv5 hosts emulating GICv3 for the
     guest

   - Preliminary work for guest GICv5 support

   - A bunch of debugfs fixes, removing pointless custom iterators
     stored in guest data structures

   - A small set of FPSIMD cleanups

   - Selftest fixes addressing the incorrect alignment of page
     allocation

   - Other assorted low-impact fixes and spelling fixes

  RISC-V:

   - Fixes for issues discoverd by KVM API fuzzing in
     kvm_riscv_aia_imsic_has_attr(), kvm_riscv_aia_imsic_rw_attr(), and
     kvm_riscv_vcpu_aia_imsic_update()

   - Allow Zalasr, Zilsd and Zclsd extensions for Guest/VM

   - Transparent huge page support for hypervisor page tables

   - Adjust the number of available guest irq files based on MMIO
     register sizes found in the device tree or the ACPI tables

   - Add RISC-V specific paging modes to KVM selftests

   - Detect paging mode at runtime for selftests

  s390:

   - Performance improvement for vSIE (aka nested virtualization)

   - Completely new memory management. s390 was a special snowflake that
     enlisted help from the architecture's page table management to
     build hypervisor page tables, in particular enabling sharing the
     last level of page tables. This however was a lot of code (~3K
     lines) in order to support KVM, and also blocked several features.
     The biggest advantages is that the page size of userspace is
     completely independent of the page size used by the guest:
     userspace can mix normal pages, THPs and hugetlbfs as it sees fit,
     and in fact transparent hugepages were not possible before. It's
     also now possible to have nested guests and guests with huge pages
     running on the same host

   - Maintainership change for s390 vfio-pci

   - Small quality of life improvement for protected guests

  x86:

   - Add support for giving the guest full ownership of PMU hardware
     (contexted switched around the fastpath run loop) and allowing
     direct access to data MSRs and PMCs (restricted by the vPMU model).

     KVM still intercepts access to control registers, e.g. to enforce
     event filtering and to prevent the guest from profiling sensitive
     host state. This is more accurate, since it has no risk of
     contention and thus dropped events, and also has significantly less
     overhead.

     For more information, see the commit message for merge commit
     bf2c3138ae ("Merge tag 'kvm-x86-pmu-6.20' ...")

   - Disallow changing the virtual CPU model if L2 is active, for all
     the same reasons KVM disallows change the model after the first
     KVM_RUN

   - Fix a bug where KVM would incorrectly reject host accesses to PV
     MSRs when running with KVM_CAP_ENFORCE_PV_FEATURE_CPUID enabled,
     even if those were advertised as supported to userspace,

   - Fix a bug with protected guest state (SEV-ES/SNP and TDX) VMs,
     where KVM would attempt to read CR3 configuring an async #PF entry

   - Fail the build if EXPORT_SYMBOL_GPL or EXPORT_SYMBOL is used in KVM
     (for x86 only) to enforce usage of EXPORT_SYMBOL_FOR_KVM_INTERNAL.
     Only a few exports that are intended for external usage, and those
     are allowed explicitly

   - When checking nested events after a vCPU is unblocked, ignore
     -EBUSY instead of WARNing. Userspace can sometimes put the vCPU
     into what should be an impossible state, and spurious exit to
     userspace on -EBUSY does not really do anything to solve the issue

   - Also throw in the towel and drop the WARN on INIT/SIPI being
     blocked when vCPU is in Wait-For-SIPI, which also resulted in
     playing whack-a-mole with syzkaller stuffing architecturally
     impossible states into KVM

   - Add support for new Intel instructions that don't require anything
     beyond enumerating feature flags to userspace

   - Grab SRCU when reading PDPTRs in KVM_GET_SREGS2

   - Add WARNs to guard against modifying KVM's CPU caps outside of the
     intended setup flow, as nested VMX in particular is sensitive to
     unexpected changes in KVM's golden configuration

   - Add a quirk to allow userspace to opt-in to actually suppress EOI
     broadcasts when the suppression feature is enabled by the guest
     (currently limited to split IRQCHIP, i.e. userspace I/O APIC).
     Sadly, simply fixing KVM to honor Suppress EOI Broadcasts isn't an
     option as some userspaces have come to rely on KVM's buggy behavior
     (KVM advertises Supress EOI Broadcast irrespective of whether or
     not userspace I/O APIC supports Directed EOIs)

   - Clean up KVM's handling of marking mapped vCPU pages dirty

   - Drop a pile of *ancient* sanity checks hidden behind in KVM's
     unused ASSERT() macro, most of which could be trivially triggered
     by the guest and/or user, and all of which were useless

   - Fold "struct dest_map" into its sole user, "struct rtc_status", to
     make it more obvious what the weird parameter is used for, and to
     allow fropping these RTC shenanigans if CONFIG_KVM_IOAPIC=n

   - Bury all of ioapic.h, i8254.h and related ioctls (including
     KVM_CREATE_IRQCHIP) behind CONFIG_KVM_IOAPIC=y

   - Add a regression test for recent APICv update fixes

   - Handle "hardware APIC ISR", a.k.a. SVI, updates in
     kvm_apic_update_apicv() to consolidate the updates, and to
     co-locate SVI updates with the updates for KVM's own cache of ISR
     information

   - Drop a dead function declaration

   - Minor cleanups

  x86 (Intel):

   - Rework KVM's handling of VMCS updates while L2 is active to
     temporarily switch to vmcs01 instead of deferring the update until
     the next nested VM-Exit.

     The deferred updates approach directly contributed to several bugs,
     was proving to be a maintenance burden due to the difficulty in
     auditing the correctness of deferred updates, and was polluting
     "struct nested_vmx" with a growing pile of booleans

   - Fix an SGX bug where KVM would incorrectly try to handle EPCM page
     faults, and instead always reflect them into the guest. Since KVM
     doesn't shadow EPCM entries, EPCM violations cannot be due to KVM
     interference and can't be resolved by KVM

   - Fix a bug where KVM would register its posted interrupt wakeup
     handler even if loading kvm-intel.ko ultimately failed

   - Disallow access to vmcb12 fields that aren't fully supported,
     mostly to avoid weirdness and complexity for FRED and other
     features, where KVM wants enable VMCS shadowing for fields that
     conditionally exist

   - Print out the "bad" offsets and values if kvm-intel.ko refuses to
     load (or refuses to online a CPU) due to a VMCS config mismatch

  x86 (AMD):

   - Drop a user-triggerable WARN on nested_svm_load_cr3() failure

   - Add support for virtualizing ERAPS. Note, correct virtualization of
     ERAPS relies on an upcoming, publicly announced change in the APM
     to reduce the set of conditions where hardware (i.e. KVM) *must*
     flush the RAP

   - Ignore nSVM intercepts for instructions that are not supported
     according to L1's virtual CPU model

   - Add support for expedited writes to the fast MMIO bus, a la VMX's
     fastpath for EPT Misconfig

   - Don't set GIF when clearing EFER.SVME, as GIF exists independently
     of SVM, and allow userspace to restore nested state with GIF=0

   - Treat exit_code as an unsigned 64-bit value through all of KVM

   - Add support for fetching SNP certificates from userspace

   - Fix a bug where KVM would use vmcb02 instead of vmcb01 when
     emulating VMLOAD or VMSAVE on behalf of L2

   - Misc fixes and cleanups

  x86 selftests:

   - Add a regression test for TPR<=>CR8 synchronization and IRQ masking

   - Overhaul selftest's MMU infrastructure to genericize stage-2 MMU
     support, and extend x86's infrastructure to support EPT and NPT
     (for L2 guests)

   - Extend several nested VMX tests to also cover nested SVM

   - Add a selftest for nested VMLOAD/VMSAVE

   - Rework the nested dirty log test, originally added as a regression
     test for PML where KVM logged L2 GPAs instead of L1 GPAs, to
     improve test coverage and to hopefully make the test easier to
     understand and maintain

  guest_memfd:

   - Remove kvm_gmem_populate()'s preparation tracking and half-baked
     hugepage handling. SEV/SNP was the only user of the tracking and it
     can do it via the RMP

   - Retroactively document and enforce (for SNP) that
     KVM_SEV_SNP_LAUNCH_UPDATE and KVM_TDX_INIT_MEM_REGION require the
     source page to be 4KiB aligned, to avoid non-trivial complexity for
     something that no known VMM seems to be doing and to avoid an API
     special case for in-place conversion, which simply can't support
     unaligned sources

   - When populating guest_memfd memory, GUP the source page in common
     code and pass the refcounted page to the vendor callback, instead
     of letting vendor code do the heavy lifting. Doing so avoids a
     looming deadlock bug with in-place due an AB-BA conflict betwee
     mmap_lock and guest_memfd's filemap invalidate lock

  Generic:

   - Fix a bug where KVM would ignore the vCPU's selected address space
     when creating a vCPU-specific mapping of guest memory. Actually
     this bug could not be hit even on x86, the only architecture with
     multiple address spaces, but it's a bug nevertheless"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (267 commits)
  KVM: s390: Increase permitted SE header size to 1 MiB
  MAINTAINERS: Replace backup for s390 vfio-pci
  KVM: s390: vsie: Fix race in acquire_gmap_shadow()
  KVM: s390: vsie: Fix race in walk_guest_tables()
  KVM: s390: Use guest address to mark guest page dirty
  irqchip/riscv-imsic: Adjust the number of available guest irq files
  RISC-V: KVM: Transparent huge page support
  RISC-V: KVM: selftests: Add Zalasr extensions to get-reg-list test
  RISC-V: KVM: Allow Zalasr extensions for Guest/VM
  KVM: riscv: selftests: Add riscv vm satp modes
  KVM: riscv: selftests: add Zilsd and Zclsd extension to get-reg-list test
  riscv: KVM: allow Zilsd and Zclsd extensions for Guest/VM
  RISC-V: KVM: Skip IMSIC update if vCPU IMSIC state is not initialized
  RISC-V: KVM: Fix null pointer dereference in kvm_riscv_aia_imsic_rw_attr()
  RISC-V: KVM: Fix null pointer dereference in kvm_riscv_aia_imsic_has_attr()
  RISC-V: KVM: Remove unnecessary 'ret' assignment
  KVM: s390: Add explicit padding to struct kvm_s390_keyop
  KVM: LoongArch: selftests: Add steal time test case
  LoongArch: KVM: Add paravirt vcpu_is_preempted() support in guest side
  LoongArch: KVM: Add paravirt preempt feature in hypervisor side
  ...
 2026-02-13 11:31:15 -08:00
Linus Torvalds
cee73b1e84 RISC-V updates for v7.0 
- Add support for control flow integrity for userspace processes.
   This is based on the standard RISC-V ISA extensions Zicfiss and
   Zicfilp
 
 - Improve ptrace behavior regarding vector registers, and add some selftests
 
 - Optimize our strlen() assembly
 
 - Enable the ISO-8859-1 code page as built-in, similar to ARM64, for EFI
   volume mounting
 
 - Clean up some code slightly, including defining copy_user_page() as
   copy_page() rather than memcpy(), aligning us with other
   architectures; and using max3() to slightly simplify an expression
   in riscv_iommu_init_check()
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Merge tag 'riscv-for-linus-7.0-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley:

 - Add support for control flow integrity for userspace processes.

   This is based on the standard RISC-V ISA extensions Zicfiss and
   Zicfilp

 - Improve ptrace behavior regarding vector registers, and add some
   selftests

 - Optimize our strlen() assembly

 - Enable the ISO-8859-1 code page as built-in, similar to ARM64, for
   EFI volume mounting

 - Clean up some code slightly, including defining copy_user_page() as
   copy_page() rather than memcpy(), aligning us with other
   architectures; and using max3() to slightly simplify an expression
   in riscv_iommu_init_check()

* tag 'riscv-for-linus-7.0-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (42 commits)
  riscv: lib: optimize strlen loop efficiency
  selftests: riscv: vstate_exec_nolibc: Use the regular prctl() function
  selftests: riscv: verify ptrace accepts valid vector csr values
  selftests: riscv: verify ptrace rejects invalid vector csr inputs
  selftests: riscv: verify syscalls discard vector context
  selftests: riscv: verify initial vector state with ptrace
  selftests: riscv: test ptrace vector interface
  riscv: ptrace: validate input vector csr registers
  riscv: csr: define vtype register elements
  riscv: vector: init vector context with proper vlenb
  riscv: ptrace: return ENODATA for inactive vector extension
  kselftest/riscv: add kselftest for user mode CFI
  riscv: add documentation for shadow stack
  riscv: add documentation for landing pad / indirect branch tracking
  riscv: create a Kconfig fragment for shadow stack and landing pad support
  arch/riscv: add dual vdso creation logic and select vdso based on hw
  arch/riscv: compile vdso with landing pad and shadow stack note
  riscv: enable kernel access to shadow stack memory via the FWFT SBI call
  riscv: add kernel command line option to opt out of user CFI
  riscv/hwprobe: add zicfilp / zicfiss enumeration in hwprobe
  ...
 2026-02-12 19:17:44 -08:00
Linus Torvalds
311aa68319 RDMA v7.0 merge window 
Usual smallish cycle:
 
 - Various code improvements in irdma, rtrs, qedr, ocrdma, irdma, rxe
 
 - Small driver improvements and minor bug fixes to hns, mlx5, rxe, mana,
   mlx5, irdma
 
 - Robusness improvements in completion processing for EFA
 
 - New query_port_speed() verb to move past limited IBA defined speed steps
 
 - Support for SG_GAPS in rts and many other small improvements
 
 - Rare list corruption fix in iwcm
 
 - Better support different page sizes in rxe
 
 - Device memory support for mana
 
 - Direct bio vec to kernel MR for use by NFS-RDMA
 
 - QP rate limiting for bnxt_re
 
 - Remote triggerable NULL pointer crash in siw
 
 - DMA-buf exporter support for RDMA mmaps like doorbells
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Usual smallish cycle. The NFS biovec work to push it down into RDMA
  instead of indirecting through a scatterlist is pretty nice to see,
  been talked about for a long time now.

   - Various code improvements in irdma, rtrs, qedr, ocrdma, irdma, rxe

   - Small driver improvements and minor bug fixes to hns, mlx5, rxe,
     mana, mlx5, irdma

   - Robusness improvements in completion processing for EFA

   - New query_port_speed() verb to move past limited IBA defined speed
     steps

   - Support for SG_GAPS in rts and many other small improvements

   - Rare list corruption fix in iwcm

   - Better support different page sizes in rxe

   - Device memory support for mana

   - Direct bio vec to kernel MR for use by NFS-RDMA

   - QP rate limiting for bnxt_re

   - Remote triggerable NULL pointer crash in siw

   - DMA-buf exporter support for RDMA mmaps like doorbells"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (66 commits)
  RDMA/mlx5: Implement DMABUF export ops
  RDMA/uverbs: Add DMABUF object type and operations
  RDMA/uverbs: Support external FD uobjects
  RDMA/siw: Fix potential NULL pointer dereference in header processing
  RDMA/umad: Reject negative data_len in ib_umad_write
  IB/core: Extend rate limit support for RC QPs
  RDMA/mlx5: Support rate limit only for Raw Packet QP
  RDMA/bnxt_re: Report QP rate limit in debugfs
  RDMA/bnxt_re: Report packet pacing capabilities when querying device
  RDMA/bnxt_re: Add support for QP rate limiting
  MAINTAINERS: Drop RDMA files from Hyper-V section
  RDMA/uverbs: Add __GFP_NOWARN to ib_uverbs_unmarshall_recv() kmalloc
  svcrdma: use bvec-based RDMA read/write API
  RDMA/core: add rdma_rw_max_sge() helper for SQ sizing
  RDMA/core: add MR support for bvec-based RDMA operations
  RDMA/core: use IOVA-based DMA mapping for bvec RDMA operations
  RDMA/core: add bio_vec based RDMA read/write API
  RDMA/irdma: Use kvzalloc for paged memory DMA address array
  RDMA/rxe: Fix race condition in QP timer handlers
  RDMA/mana_ib: Add device‑memory support
  ...
 2026-02-12 17:05:20 -08:00
Linus Torvalds
e812928be2 cxl changes for v7.0 
- A set of commits that introduces cxl_memdev_attach and pave way for
   soft reserved handling, type2 accelerator enabling, and LSA 2.0
   enabling. All these series require the endpoint driver to settle
   before continuing the memdev driver probe.
 
 dax/hmem, e820, resource: Defer Soft Reserved insertion until hmem is ready
 cxl/mem: Introduce cxl_memdev_attach for CXL-dependent operation
 cxl/mem: Drop @host argument to devm_cxl_add_memdev()
 cxl/mem: Convert devm_cxl_add_memdev() to scope-based-cleanup
 cxl/port: Arrange for always synchronous endpoint attach
 cxl/mem: Arrange for always-synchronous memdev attach
 cxl/mem: Fix devm_cxl_memdev_edac_release() confusion
 
 - A set to address CXL port error protocol handling and reporting. The
   large patch series was split into 3 parts. Part 1 and 2 are included
   here with part 3 coming later. Part 1 consists of a series of code
   refactoring to PCI AER sub-system that addresses CXL and also CXL
   RAS code to prepare for port error handling. Part 2 refactors the
   CXL code to move management of component registers to cxl_port
   objects to allow all CXL AER errors to be handled through the
   cxl_port hierarchy.
 
 Part 2:
 cxl/port: Move endpoint component register management to cxl_port
 cxl/port: Map Port RAS registers
 cxl/port: Move dport RAS setup to dport add time
 cxl/port: Move dport probe operations to a driver event
 cxl/port: Move decoder setup before dport creation
 cxl/port: Cleanup dport removal with a devres group
 cxl/port: Reduce number of @dport variables in cxl_port_add_dport()
 cxl/port: Cleanup handling of the nr_dports 0 -> 1 transition
 
 Part 1:
 cxl: Update RAS handler interfaces to also support CXL Ports
 cxl/mem: Clarify @host for devm_cxl_add_nvdimm()
 PCI/AER: Update struct aer_err_info with kernel-doc formatting
 PCI/AER: Report CXL or PCIe bus type in AER trace logging
 PCI/AER: Use guard() in cxl_rch_handle_error_iter()
 PCI/AER: Move CXL RCH error handling to aer_cxl_rch.c
 PCI/AER: Update is_internal_error() to be non-static is_aer_internal_error()
 PCI/AER: Export pci_aer_unmask_internal_errors()
 cxl/pci: Move CXL driver's RCH error handling into core/ras_rch.c
 PCI/AER: Replace PCIEAER_CXL symbol with CXL_RAS
 cxl/pci: Remove CXL VH handling in CONFIG_PCIEAER_CXL conditional blocks from core/pci.c
 PCI: Replace cxl_error_is_native() with pcie_aer_is_native()
 cxl/pci: Remove unnecessary CXL RCH handling helper functions
 cxl/pci: Remove unnecessary CXL Endpoint handling helper functions
 PCI: Introduce pcie_is_cxl()
 PCI: Update CXL DVSEC definitions
 PCI: Move CXL DVSEC definitions into uapi/linux/pci_regs.h
 
 - A set of patches to provide AMD Zen5 platform address translation for
   CXL using ACPI PRMT. Set includes a conventions document to explain
   why this is needed and how it's implemented.
 
 cxl: Disable HPA/SPA translation handlers for Normalized Addressing
 cxl/region: Factor out code into cxl_region_setup_poison()
 cxl/atl: Lock decoders that need address translation
 cxl: Enable AMD Zen5 address translation using ACPI PRMT
 cxl/acpi: Prepare use of EFI runtime services
 cxl: Introduce callback for HPA address ranges translation
 cxl/region: Use region data to get the root decoder
 cxl/region: Add @hpa_range argument to function cxl_calc_interleave_pos()
 cxl/region: Separate region parameter setup and region construction
 cxl: Simplify cxl_root_ops allocation and handling
 cxl/region: Store HPA range in struct cxl_region
 cxl/region: Store root decoder in struct cxl_region
 cxl/region: Rename misleading variable name @hpa to @hpa_range
 Documentation/driver-api/cxl: ACPI PRM Address Translation Support and AMD Zen5 enablement
 cxl, doc: Moving conventions in separate files
 cxl, doc: Remove isonum.txt inclusion
 
 - A set of misc CXL patches of fixes, cleanups, and updates. Including
   CXL address translation for unaligned MOD3 regions.
 
 cxl: Fix premature commit_end increment on decoder commit failure
 cxl/region: Use do_div() for 64-bit modulo operation
 cxl/region: Translate HPA to DPA and memdev in unaligned regions
 cxl/region: Translate DPA->HPA in unaligned MOD3 regions
 cxl/core: Fix cxl_dport debugfs EINJ entries
 cxl/acpi: Remove cxl_acpi_set_cache_size()
 cxl/hdm: Fix newline character in dev_err() messages
 cxl/pci: Remove outdated FIXME comment and BUILD_BUG_ON
 Documentation/driver-api/cxl: device hotplug section
 Documentation/driver-api/cxl: BIOS/EFI expectation update
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Merge tag 'cxl-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL updates from Dave Jiang:

 - Introduce cxl_memdev_attach and pave way for soft reserved handling,
   type2 accelerator enabling, and LSA 2.0 enabling. All these series
   require the endpoint driver to settle before continuing the memdev
   driver probe.

 - Address CXL port error protocol handling and reporting.

   The large patch series was split into three parts. The first two
   parts are included here with the final part coming later.

   The first part consists of a series of code refactoring to PCI AER
   sub-system that addresses CXL and also CXL RAS code to prepare for
   port error handling.

   The second part refactors the CXL code to move management of
   component registers to cxl_port objects to allow all CXL AER errors
   to be handled through the cxl_port hierarchy.

 - Provide AMD Zen5 platform address translation for CXL using ACPI
   PRMT. This includes a conventions document to explain why this is
   needed and how it's implemented.

 - Misc CXL patches of fixes, cleanups, and updates. Including CXL
   address translation for unaligned MOD3 regions.

[ TLA service: CXL is "Compute Express Link" ]

* tag 'cxl-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (59 commits)
  cxl: Disable HPA/SPA translation handlers for Normalized Addressing
  cxl/region: Factor out code into cxl_region_setup_poison()
  cxl/atl: Lock decoders that need address translation
  cxl: Enable AMD Zen5 address translation using ACPI PRMT
  cxl/acpi: Prepare use of EFI runtime services
  cxl: Introduce callback for HPA address ranges translation
  cxl/region: Use region data to get the root decoder
  cxl/region: Add @hpa_range argument to function cxl_calc_interleave_pos()
  cxl/region: Separate region parameter setup and region construction
  cxl: Simplify cxl_root_ops allocation and handling
  cxl/region: Store HPA range in struct cxl_region
  cxl/region: Store root decoder in struct cxl_region
  cxl/region: Rename misleading variable name @hpa to @hpa_range
  Documentation/driver-api/cxl: ACPI PRM Address Translation Support and AMD Zen5 enablement
  cxl, doc: Moving conventions in separate files
  cxl, doc: Remove isonum.txt inclusion
  cxl/port: Unify endpoint and switch port lookup
  cxl/port: Move endpoint component register management to cxl_port
  cxl/port: Map Port RAS registers
  cxl/port: Move dport RAS setup to dport add time
  ...
 2026-02-12 16:33:05 -08:00
Linus Torvalds
d4a379a52c SCSI misc on 20260212 
Usual driver updates (qla2xxx, mpi3mr, mpt3sas, ufs) plus assorted
 cleanups and fixes.  The biggest core change is the massive code
 motion in the sd driver to remove forward declarations and the most
 significant change is to enumify the queuecommand return.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Usual driver updates (qla2xxx, mpi3mr, mpt3sas, ufs) plus assorted
  cleanups and fixes.

  The biggest core change is the massive code motion in the sd driver to
  remove forward declarations and the most significant change is to
  enumify the queuecommand return"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (78 commits)
  scsi: csiostor: Fix dereference of null pointer rn
  scsi: buslogic: Reduce stack usage
  scsi: ufs: host: mediatek: Require CONFIG_PM
  scsi: ufs: mediatek: Fix page faults in ufs_mtk_clk_scale() trace event
  scsi: smartpqi: Fix memory leak in pqi_report_phys_luns()
  scsi: mpi3mr: Make driver probing asynchronous
  scsi: ufs: core: Flush exception handling work when RPM level is zero
  scsi: efct: Use IRQF_ONESHOT and default primary handler
  scsi: ufs: core: Use a host-wide tagset in SDB mode
  scsi: qla2xxx: target: Add WQ_PERCPU to alloc_workqueue() users
  scsi: qla2xxx: Add WQ_PERCPU to alloc_workqueue() users
  scsi: qla4xxx: Add WQ_PERCPU to alloc_workqueue() users
  scsi: mpi3mr: Driver version update to 8.17.0.3.50
  scsi: mpi3mr: Fixed the W=1 compilation warning
  scsi: mpi3mr: Record and report controller firmware faults
  scsi: mpi3mr: Update MPI Headers to revision 39
  scsi: mpi3mr: Use negotiated link rate from DevicePage0
  scsi: mpi3mr: Avoid redundant diag-fault resets
  scsi: mpi3mr: Rename log data save helper to reflect threaded/BH context
  scsi: mpi3mr: Add module parameter to control threaded IRQ polling
  ...
 2026-02-12 15:43:02 -08:00
Linus Torvalds
041c16acba for-7.0/io_uring-zcrx-large-buffers-20260206 
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Merge tag 'for-7.0/io_uring-zcrx-large-buffers-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring large rx buffer support from Jens Axboe:
 "Now that the networking updates are upstream, here's the support for
  large buffers for zcrx.

  Using larger (bigger than 4K) rx buffers can increase the effiency of
  zcrx. For example, it's been shown that using 32K buffers can decrease
  CPU usage by ~30% compared to 4K buffers"

* tag 'for-7.0/io_uring-zcrx-large-buffers-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/zcrx: implement large rx buffer support
 2026-02-12 15:07:50 -08:00
Alex Deucher
57d00816c6 drm/amdgpu: set family for GC 11.5.4 
Set the family for GC 11.5.4

Fixes: 47ae1f938d ("drm/amdgpu: add support for GC IP version 11.5.4")
Cc: Tim Huang <tim.huang@amd.com>
Cc: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com>
Cc: Roman Li <Roman.Li@amd.com>
Reviewed-by: Tim Huang <tim.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2026-02-12 15:23:09 -05:00
Linus Torvalds
136114e0ab mm.git review status for linus..mm-nonmm-stable 
Total patches:       107
 Reviews/patch:       1.07
 Reviewed rate:       67%
 
 - The 2 patch series "ocfs2: give ocfs2 the ability to reclaim
   suballocator free bg" from Heming Zhao saves disk space by teaching
   ocfs2 to reclaim suballocator block group space.
 
 - The 4 patch series "Add ARRAY_END(), and use it to fix off-by-one
   bugs" from Alejandro Colomar adds the ARRAY_END() macro and uses it in
   various places.
 
 - The 2 patch series "vmcoreinfo: support VMCOREINFO_BYTES larger than
   PAGE_SIZE" from Pnina Feder makes the vmcore code future-safe, if
   VMCOREINFO_BYTES ever exceeds the page size.
 
 - The 7 patch series "kallsyms: Prevent invalid access when showing
   module buildid" from Petr Mladek cleans up kallsyms code related to
   module buildid and fixes an invalid access crash when printing
   backtraces.
 
 - The 3 patch series "Address page fault in
   ima_restore_measurement_list()" from Harshit Mogalapalli fixes a
   kexec-related crash that can occur when booting the second-stage kernel
   on x86.
 
 - The 6 patch series "kho: ABI headers and Documentation updates" from
   Mike Rapoport updates the kexec handover ABI documentation.
 
 - The 4 patch series "Align atomic storage" from Finn Thain adds the
   __aligned attribute to atomic_t and atomic64_t definitions to get
   natural alignment of both types on csky, m68k, microblaze, nios2,
   openrisc and sh.
 
 - The 2 patch series "kho: clean up page initialization logic" from
   Pratyush Yadav simplifies the page initialization logic in
   kho_restore_page().
 
 - The 6 patch series "Unload linux/kernel.h" from Yury Norov moves
   several things out of kernel.h and into more appropriate places.
 
 - The 7 patch series "don't abuse task_struct.group_leader" from Oleg
   Nesterov removes the usage of ->group_leader when it is "obviously
   unnecessary".
 
 - The 5 patch series "list private v2 & luo flb" from Pasha Tatashin
   adds some infrastructure improvements to the live update orchestrator.
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Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
   disk space by teaching ocfs2 to reclaim suballocator block group
   space (Heming Zhao)

 - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
   ARRAY_END() macro and uses it in various places (Alejandro Colomar)

 - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
   the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
   page size (Pnina Feder)

 - "kallsyms: Prevent invalid access when showing module buildid" cleans
   up kallsyms code related to module buildid and fixes an invalid
   access crash when printing backtraces (Petr Mladek)

 - "Address page fault in ima_restore_measurement_list()" fixes a
   kexec-related crash that can occur when booting the second-stage
   kernel on x86 (Harshit Mogalapalli)

 - "kho: ABI headers and Documentation updates" updates the kexec
   handover ABI documentation (Mike Rapoport)

 - "Align atomic storage" adds the __aligned attribute to atomic_t and
   atomic64_t definitions to get natural alignment of both types on
   csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)

 - "kho: clean up page initialization logic" simplifies the page
   initialization logic in kho_restore_page() (Pratyush Yadav)

 - "Unload linux/kernel.h" moves several things out of kernel.h and into
   more appropriate places (Yury Norov)

 - "don't abuse task_struct.group_leader" removes the usage of
   ->group_leader when it is "obviously unnecessary" (Oleg Nesterov)

 - "list private v2 & luo flb" adds some infrastructure improvements to
   the live update orchestrator (Pasha Tatashin)

* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
  watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
  procfs: fix missing RCU protection when reading real_parent in do_task_stat()
  watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
  kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
  kho: fix doc for kho_restore_pages()
  tests/liveupdate: add in-kernel liveupdate test
  liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
  liveupdate: luo_file: Use private list
  list: add kunit test for private list primitives
  list: add primitives for private list manipulations
  delayacct: fix uapi timespec64 definition
  panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
  netclassid: use thread_group_leader(p) in update_classid_task()
  RDMA/umem: don't abuse current->group_leader
  drm/pan*: don't abuse current->group_leader
  drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
  drm/amdgpu: don't abuse current->group_leader
  android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
  android/binder: don't abuse current->group_leader
  kho: skip memoryless NUMA nodes when reserving scratch areas
  ...
 2026-02-12 12:13:01 -08:00
Linus Torvalds
4cff5c05e0 mm.git review status for linus..mm-stable 
Everything:
 
 Total patches:       325
 Reviews/patch:       1.39
 Reviewed rate:       72%
 
 Excluding DAMON:
 
 Total patches:       262
 Reviews/patch:       1.63
 Reviewed rate:       82%
 
 Excluding DAMON and zram:
 
 Total patches:       248
 Reviews/patch:       1.72
 Reviewed rate:       86%
 
 - The 14 patch series "powerpc/64s: do not re-activate batched TLB
   flush" from Alexander Gordeev makes arch_{enter|leave}_lazy_mmu_mode()
   nest properly.
 
   It adds a generic enter/leave layer and switches architectures to use
   it.  Various hacks were removed in the process.
 
 - The 7 patch series "zram: introduce compressed data writeback" from
   Richard Chang and Sergey Senozhatsky implements data compression for
   zram writeback.
 
 - The 8 patch series "mm: folio_zero_user: clear page ranges" from David
   Hildenbrand adds clearing of contiguous page ranges for hugepages.
   Large improvements during demand faulting are demonstrated.
 
 - The 2 patch series "memcg cleanups" from Chen Ridong tideis up some
   memcg code.
 
 - The 12 patch series "mm/damon: introduce {,max_}nr_snapshots and
   tracepoint for damos stats" from SeongJae Park improves DAMOS stat's
   provided information, deterministic control, and readability.
 
 - The 3 patch series "selftests/mm: hugetlb cgroup charging: robustness
   fixes" from Li Wang fixes a few issues in the hugetlb cgroup charging
   selftests.
 
 - The 5 patch series "Fix va_high_addr_switch.sh test failure - again"
   from Chunyu Hu addresses several issues in the va_high_addr_switch test.
 
 - The 5 patch series "mm/damon/tests/core-kunit: extend existing test
   scenarios" from Shu Anzai improves the KUnit test coverage for DAMON.
 
 - The 2 patch series "mm/khugepaged: fix dirty page handling for
   MADV_COLLAPSE" from Shivank Garg fixes a glitch in khugepaged which was
   causing madvise(MADV_COLLAPSE) to transiently return -EAGAIN.
 
 - The 29 patch series "arch, mm: consolidate hugetlb early reservation"
   from Mike Rapoport reworks and consolidates a pile of straggly code
   related to reservation of hugetlb memory from bootmem and creation of
   CMA areas for hugetlb.
 
 - The 9 patch series "mm: clean up anon_vma implementation" from Lorenzo
   Stoakes cleans up the anon_vma implementation in various ways.
 
 - The 3 patch series "tweaks for __alloc_pages_slowpath()" from
   Vlastimil Babka does a little streamlining of the page allocator's
   slowpath code.
 
 - The 8 patch series "memcg: separate private and public ID namespaces"
   from Shakeel Butt cleans up the memcg ID code and prevents the
   internal-only private IDs from being exposed to userspace.
 
 - The 6 patch series "mm: hugetlb: allocate frozen gigantic folio" from
   Kefeng Wang cleans up the allocation of frozen folios and avoids some
   atomic refcount operations.
 
 - The 11 patch series "mm/damon: advance DAMOS-based LRU sorting" from
   SeongJae Park improves DAMOS's movement of memory betewwn the active and
   inactive LRUs and adds auto-tuning of the ratio-based quotas and of
   monitoring intervals.
 
 - The 18 patch series "Support page table check on PowerPC" from Andrew
   Donnellan makes CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc.
 
 - The 3 patch series "nodemask: align nodes_and{,not} with underlying
   bitmap ops" from Yury Norov makes nodes_and() and nodes_andnot()
   propagate the return values from the underlying bit operations, enabling
   some cleanup in calling code.
 
 - The 5 patch series "mm/damon: hide kdamond and kdamond_lock from API
   callers" from SeongJae Park cleans up some DAMON internal interfaces.
 
 - The 4 patch series "mm/khugepaged: cleanups and scan limit fix" from
   Shivank Garg does some cleanup work in khupaged and fixes a scan limit
   accounting issue.
 
 - The 24 patch series "mm: balloon infrastructure cleanups" from David
   Hildenbrand goes to town on the balloon infrastructure and its page
   migration function.  Mainly cleanups, also some locking simplification.
 
 - The 2 patch series "mm/vmscan: add tracepoint and reason for
   kswapd_failures reset" from Jiayuan Chen adds additional tracepoints to
   the page reclaim code.
 
 - The 3 patch series "Replace wq users and add WQ_PERCPU to
   alloc_workqueue() users" from Marco Crivellari is part of Marco's
   kernel-wide migration from the legacy workqueue APIs over to the
   preferred unbound workqueues.
 
 - The 9 patch series "Various mm kselftests improvements/fixes" from
   Kevin Brodsky provides various unrelated improvements/fixes for the mm
   kselftests.
 
 - The 5 patch series "mm: accelerate gigantic folio allocation" from
   Kefeng Wang greatly speeds up gigantic folio allocation, mainly by
   avoiding unnecessary work in pfn_range_valid_contig().
 
 - The 5 patch series "selftests/damon: improve leak detection and wss
   estimation reliability" from SeongJae Park improves the reliability of
   two of the DAMON selftests.
 
 - The 8 patch series "mm/damon: cleanup kdamond, damon_call(), damos
   filter and DAMON_MIN_REGION" from SeongJae Park does some cleanup work
   in the core DAMON code.
 
 - The 8 patch series "Docs/mm/damon: update intro, modules, maintainer
   profile, and misc" from SeongJae Park performs maintenance work on the
   DAMON documentation.
 
 - The 10 patch series "mm: add and use vma_assert_stabilised() helper"
   from Lorenzo Stoakes refactors and cleans up the core VMA code.  The
   main aim here is to be able to use the mmap write lock's lockdep state
   to perform various assertions regarding the locking which the VMA code
   requires.
 
 - The 19 patch series "mm, swap: swap table phase II: unify swapin use"
   from Kairui Song removes some old swap code (swap cache bypassing and
   swap synchronization) which wasn't working very well.  Various other
   cleanups and simplifications were made.  The end result is a 20% speedup
   in one benchmark.
 
 - The 8 patch series "enable PT_RECLAIM on more 64-bit architectures"
   from Qi Zheng makes PT_RECLAIM available on 64-bit alpha, loongarch,
   mips, parisc, um,  Various cleanups were performed along the way.
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Merge tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - "powerpc/64s: do not re-activate batched TLB flush" makes
   arch_{enter|leave}_lazy_mmu_mode() nest properly (Alexander Gordeev)

   It adds a generic enter/leave layer and switches architectures to use
   it. Various hacks were removed in the process.

 - "zram: introduce compressed data writeback" implements data
   compression for zram writeback (Richard Chang and Sergey Senozhatsky)

 - "mm: folio_zero_user: clear page ranges" adds clearing of contiguous
   page ranges for hugepages. Large improvements during demand faulting
   are demonstrated (David Hildenbrand)

 - "memcg cleanups" tidies up some memcg code (Chen Ridong)

 - "mm/damon: introduce {,max_}nr_snapshots and tracepoint for damos
   stats" improves DAMOS stat's provided information, deterministic
   control, and readability (SeongJae Park)

 - "selftests/mm: hugetlb cgroup charging: robustness fixes" fixes a few
   issues in the hugetlb cgroup charging selftests (Li Wang)

 - "Fix va_high_addr_switch.sh test failure - again" addresses several
   issues in the va_high_addr_switch test (Chunyu Hu)

 - "mm/damon/tests/core-kunit: extend existing test scenarios" improves
   the KUnit test coverage for DAMON (Shu Anzai)

 - "mm/khugepaged: fix dirty page handling for MADV_COLLAPSE" fixes a
   glitch in khugepaged which was causing madvise(MADV_COLLAPSE) to
   transiently return -EAGAIN (Shivank Garg)

 - "arch, mm: consolidate hugetlb early reservation" reworks and
   consolidates a pile of straggly code related to reservation of
   hugetlb memory from bootmem and creation of CMA areas for hugetlb
   (Mike Rapoport)

 - "mm: clean up anon_vma implementation" cleans up the anon_vma
   implementation in various ways (Lorenzo Stoakes)

 - "tweaks for __alloc_pages_slowpath()" does a little streamlining of
   the page allocator's slowpath code (Vlastimil Babka)

 - "memcg: separate private and public ID namespaces" cleans up the
   memcg ID code and prevents the internal-only private IDs from being
   exposed to userspace (Shakeel Butt)

 - "mm: hugetlb: allocate frozen gigantic folio" cleans up the
   allocation of frozen folios and avoids some atomic refcount
   operations (Kefeng Wang)

 - "mm/damon: advance DAMOS-based LRU sorting" improves DAMOS's movement
   of memory betewwn the active and inactive LRUs and adds auto-tuning
   of the ratio-based quotas and of monitoring intervals (SeongJae Park)

 - "Support page table check on PowerPC" makes
   CONFIG_PAGE_TABLE_CHECK_ENFORCED work on powerpc (Andrew Donnellan)

 - "nodemask: align nodes_and{,not} with underlying bitmap ops" makes
   nodes_and() and nodes_andnot() propagate the return values from the
   underlying bit operations, enabling some cleanup in calling code
   (Yury Norov)

 - "mm/damon: hide kdamond and kdamond_lock from API callers" cleans up
   some DAMON internal interfaces (SeongJae Park)

 - "mm/khugepaged: cleanups and scan limit fix" does some cleanup work
   in khupaged and fixes a scan limit accounting issue (Shivank Garg)

 - "mm: balloon infrastructure cleanups" goes to town on the balloon
   infrastructure and its page migration function. Mainly cleanups, also
   some locking simplification (David Hildenbrand)

 - "mm/vmscan: add tracepoint and reason for kswapd_failures reset" adds
   additional tracepoints to the page reclaim code (Jiayuan Chen)

 - "Replace wq users and add WQ_PERCPU to alloc_workqueue() users" is
   part of Marco's kernel-wide migration from the legacy workqueue APIs
   over to the preferred unbound workqueues (Marco Crivellari)

 - "Various mm kselftests improvements/fixes" provides various unrelated
   improvements/fixes for the mm kselftests (Kevin Brodsky)

 - "mm: accelerate gigantic folio allocation" greatly speeds up gigantic
   folio allocation, mainly by avoiding unnecessary work in
   pfn_range_valid_contig() (Kefeng Wang)

 - "selftests/damon: improve leak detection and wss estimation
   reliability" improves the reliability of two of the DAMON selftests
   (SeongJae Park)

 - "mm/damon: cleanup kdamond, damon_call(), damos filter and
   DAMON_MIN_REGION" does some cleanup work in the core DAMON code
   (SeongJae Park)

 - "Docs/mm/damon: update intro, modules, maintainer profile, and misc"
   performs maintenance work on the DAMON documentation (SeongJae Park)

 - "mm: add and use vma_assert_stabilised() helper" refactors and cleans
   up the core VMA code. The main aim here is to be able to use the mmap
   write lock's lockdep state to perform various assertions regarding
   the locking which the VMA code requires (Lorenzo Stoakes)

 - "mm, swap: swap table phase II: unify swapin use" removes some old
   swap code (swap cache bypassing and swap synchronization) which
   wasn't working very well. Various other cleanups and simplifications
   were made. The end result is a 20% speedup in one benchmark (Kairui
   Song)

 - "enable PT_RECLAIM on more 64-bit architectures" makes PT_RECLAIM
   available on 64-bit alpha, loongarch, mips, parisc, and um. Various
   cleanups were performed along the way (Qi Zheng)

* tag 'mm-stable-2026-02-11-19-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (325 commits)
  mm/memory: handle non-split locks correctly in zap_empty_pte_table()
  mm: move pte table reclaim code to memory.c
  mm: make PT_RECLAIM depends on MMU_GATHER_RCU_TABLE_FREE
  mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config
  um: mm: enable MMU_GATHER_RCU_TABLE_FREE
  parisc: mm: enable MMU_GATHER_RCU_TABLE_FREE
  mips: mm: enable MMU_GATHER_RCU_TABLE_FREE
  LoongArch: mm: enable MMU_GATHER_RCU_TABLE_FREE
  alpha: mm: enable MMU_GATHER_RCU_TABLE_FREE
  mm: change mm/pt_reclaim.c to use asm/tlb.h instead of asm-generic/tlb.h
  mm/damon/stat: remove __read_mostly from memory_idle_ms_percentiles
  zsmalloc: make common caches global
  mm: add SPDX id lines to some mm source files
  mm/zswap: use %pe to print error pointers
  mm/vmscan: use %pe to print error pointers
  mm/readahead: fix typo in comment
  mm: khugepaged: fix NR_FILE_PAGES and NR_SHMEM in collapse_file()
  mm: refactor vma_map_pages to use vm_insert_pages
  mm/damon: unify address range representation with damon_addr_range
  mm/cma: replace snprintf with strscpy in cma_new_area
  ...
 2026-02-12 11:32:37 -08:00
Linus Torvalds
2831fa8b8b NFSD 7.0 Release Notes 
Neil Brown and Jeff Layton contributed a dynamic thread pool sizing
 mechanism for NFSD. The sunrpc layer now tracks minimum and maximum
 thread counts per pool, and NFSD adjusts running thread counts based
 on workload: idle threads exit after a timeout when the pool exceeds
 its minimum, and new threads spawn automatically when all threads
 are busy. Administrators control this behavior via the nfsdctl
 netlink interface.
 
 Rick Macklem, FreeBSD NFS maintainer, generously contributed server-
 side support for the POSIX ACL extension to NFSv4, as specified in
 draft-ietf-nfsv4-posix-acls. This extension allows NFSv4 clients to
 get and set POSIX access and default ACLs using native NFSv4
 operations, eliminating the need for sideband protocols. The feature
 is gated by a Kconfig option since the IETF draft has not yet been
 ratified.
 
 Chuck Lever delivered numerous improvements to the xdrgen tool.
 Error reporting now covers parsing, AST transformation, and invalid
 declarations. Generated enum decoders validate incoming values
 against valid enumerator lists. New features include pass-through
 line support for embedding C directives in XDR specifications,
 16-bit integer types, and program number definitions. Several code
 generation issues were also addressed.
 
 When an administrator revokes NFSv4 state for a filesystem via the
 unlock_fs interface, ongoing async COPY operations referencing that
 filesystem are now cancelled, with CB_OFFLOAD callbacks notifying
 affected clients.
 
 The remaining patches in this pull request are clean-ups and minor
 optimizations. Sincere thanks to all contributors, reviewers,
 testers, and bug reporters who participated in the v7.0 NFSD
 development cycle.
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Merge tag 'nfsd-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "Neil Brown and Jeff Layton contributed a dynamic thread pool sizing
  mechanism for NFSD. The sunrpc layer now tracks minimum and maximum
  thread counts per pool, and NFSD adjusts running thread counts based
  on workload: idle threads exit after a timeout when the pool exceeds
  its minimum, and new threads spawn automatically when all threads are
  busy. Administrators control this behavior via the nfsdctl netlink
  interface.

  Rick Macklem, FreeBSD NFS maintainer, generously contributed server-
  side support for the POSIX ACL extension to NFSv4, as specified in
  draft-ietf-nfsv4-posix-acls. This extension allows NFSv4 clients to
  get and set POSIX access and default ACLs using native NFSv4
  operations, eliminating the need for sideband protocols. The feature
  is gated by a Kconfig option since the IETF draft has not yet been
  ratified.

  Chuck Lever delivered numerous improvements to the xdrgen tool. Error
  reporting now covers parsing, AST transformation, and invalid
  declarations. Generated enum decoders validate incoming values against
  valid enumerator lists. New features include pass-through line support
  for embedding C directives in XDR specifications, 16-bit integer
  types, and program number definitions. Several code generation issues
  were also addressed.

  When an administrator revokes NFSv4 state for a filesystem via the
  unlock_fs interface, ongoing async COPY operations referencing that
  filesystem are now cancelled, with CB_OFFLOAD callbacks notifying
  affected clients.

  The remaining patches in this pull request are clean-ups and minor
  optimizations. Sincere thanks to all contributors, reviewers, testers,
  and bug reporters who participated in the v7.0 NFSD development cycle"

* tag 'nfsd-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (45 commits)
  NFSD: Add POSIX ACL file attributes to SUPPATTR bitmasks
  NFSD: Add POSIX draft ACL support to the NFSv4 SETATTR operation
  NFSD: Add support for POSIX draft ACLs for file creation
  NFSD: Add support for XDR decoding POSIX draft ACLs
  NFSD: Refactor nfsd_setattr()'s ACL error reporting
  NFSD: Do not allow NFSv4 (N)VERIFY to check POSIX ACL attributes
  NFSD: Add nfsd4_encode_fattr4_posix_access_acl
  NFSD: Add nfsd4_encode_fattr4_posix_default_acl
  NFSD: Add nfsd4_encode_fattr4_acl_trueform_scope
  NFSD: Add nfsd4_encode_fattr4_acl_trueform
  Add RPC language definition of NFSv4 POSIX ACL extension
  NFSD: Add a Kconfig setting to enable support for NFSv4 POSIX ACLs
  xdrgen: Implement pass-through lines in specifications
  nfsd: cancel async COPY operations when admin revokes filesystem state
  nfsd: add controls to set the minimum number of threads per pool
  nfsd: adjust number of running nfsd threads based on activity
  sunrpc: allow svc_recv() to return -ETIMEDOUT and -EBUSY
  sunrpc: split new thread creation into a separate function
  sunrpc: introduce the concept of a minimum number of threads per pool
  sunrpc: track the max number of requested threads in a pool
  ...
 2026-02-12 08:23:53 -08:00
Linus Torvalds
37a93dd5c4 Networking changes for 7.0 
Core & protocols
 ----------------
 
  - A significant effort all around the stack to guide the compiler to
    make the right choice when inlining code, to avoid unneeded calls for
    small helper and stack canary overhead in the fast-path. This
    generates better and faster code with very small or no text size
    increases, as in many cases the call generated more code than the
    actual inlined helper.
 
  - Extend AccECN implementation so that is now functionally complete,
    also allow the user-space enabling it on a per network namespace
    basis.
 
  - Add support for memory providers with large (above 4K) rx buffer.
    Paired with hw-gro, larger rx buffer sizes reduce the number of
    buffers traversing the stack, dincreasing single stream CPU usage by
    up to ~30%.
 
  - Do not add HBH header to Big TCP GSO packets. This simplifies the RX
    path, the TX path and the NIC drivers, and is possible because
    user-space taps can now interpret correctly such packets without the
    HBH hint.
 
  - Allow IPv6 routes to be configured with a gateway address that is
    resolved out of a different interface than the one specified, aligning
    IPv6 to IPv4 behavior.
 
  - Multi-queue aware sch_cake. This makes it possible to scale the rate
    shaper of sch_cake across multiple CPUs, while still enforcing a
    single global rate on the interface.
 
  - Add support for the nbcon (new buffer console) infrastructure to
    netconsole, enabling lock-free, priority-based console operations that
    are safer in crash scenarios.
 
  - Improve the TCP ipv6 output path to cache the flow information, saving
    cpu cycles, reducing cache line misses and stack use.
 
  - Improve netfilter packet tracker to resolve clashes for most protocols,
    avoiding unneeded drops on rare occasions.
 
  - Add IP6IP6 tunneling acceleration to the flowtable infrastructure.
 
  - Reduce tcp socket size by one cache line.
 
  - Notify neighbour changes atomically, avoiding inconsistencies between
    the notification sequence and the actual states sequence.
 
  - Add vsock namespace support, allowing complete isolation of vsocks
    across different network namespaces.
 
  - Improve xsk generic performances with cache-alignment-oriented
    optimizations.
 
  - Support netconsole automatic target recovery, allowing netconsole
    to reestablish targets when underlying low-level interface comes back
    online.
 
 Driver API
 ----------
 
  - Support for switching the working mode (automatic vs manual) of a DPLL
    device via netlink.
 
  - Introduce PHY ports representation to expose multiple front-facing
    media ports over a single MAC.
 
  - Introduce "rx-polarity" and "tx-polarity" device tree properties, to
    generalize polarity inversion requirements for differential signaling.
 
  - Add helper to create, prepare and enable managed clocks.
 
 Device drivers
 --------------
 
  - Add Huawei hinic3 PF etherner driver.
 
  - Add DWMAC glue driver for Motorcomm YT6801 PCIe ethernet controller.
 
  - Add ethernet driver for MaxLinear MxL862xx switches
 
  - Remove parallel-port Ethernet driver.
 
  - Convert existing driver timestamp configuration reporting to
    hwtstamp_get and remove legacy ioctl().
 
  - Convert existing drivers to .get_rx_ring_count(), simplifing the RX
    ring count retrieval. Also remove the legacy fallback path.
 
  - Ethernet high-speed NICs:
    - Broadcom (bnxt, bng):
      - bnxt: add FW interface update to support FEC stats histogram and
        NVRAM defragmentation
      - bng: add TSO and H/W GRO support
    - nVidia/Mellanox (mlx5):
      - improve latency of channel restart operations, reducing the used
        H/W resources
      - add TSO support for UDP over GRE over VLAN
      - add flow counters support for hardware steering (HWS) rules
      - use a static memory area to store headers for H/W GRO, leading to
        12% RX tput improvement
    - Intel (100G, ice, idpf):
      - ice: reorganizes layout of Tx and Rx rings for cacheline
        locality and utilizes __cacheline_group* macros on the new layouts
      - ice: introduces Synchronous Ethernet (SyncE) support
    - Meta (fbnic):
      - adds debugfs for firmware mailbox and tx/rx rings vectors
 
  - Ethernet virtual:
    - geneve: introduce GRO/GSO support for double UDP encapsulation
 
  - Ethernet NICs consumer, and embedded:
    - Synopsys (stmmac):
      - some code refactoring and cleanups
    - RealTek (r8169):
      - add support for RTL8127ATF (10G Fiber SFP)
      - add dash and LTR support
    - Airoha:
      - AN8811HB 2.5 Gbps phy support
    - Freescale (fec):
      - add XDP zero-copy support
    - Thunderbolt:
      - add get link setting support to allow bonding
    - Renesas:
      - add support for RZ/G3L GBETH SoC
 
  - Ethernet switches:
    - Maxlinear:
      - support R(G)MII slow rate configuration
      - add support for Intel GSW150
    - Motorcomm (yt921x):
      - add DCB/QoS support
    - TI:
      - icssm-prueth: support bridging (STP/RSTP) via the switchdev
        framework
 
  - Ethernet PHYs:
    - Realtek:
      - enable SGMII and 2500Base-X in-band auto-negotiation
      - simplify and reunify C22/C45 drivers
    - Micrel: convert bindings to DT schema
 
  - CAN:
    - move skb headroom content into skb extensions, making CAN metadata
      access more robust
 
  - CAN drivers:
    - rcar_canfd:
      - add support for FD-only mode
      - add support for the RZ/T2H SoC
    - sja1000: cleanup the CAN state handling
 
  - WiFi:
    - implement EPPKE/802.1X over auth frames support
    - split up drop reasons better, removing generic RX_DROP
    - additional FTM capabilities: 6 GHz support, supported number of
      spatial streams and supported number of LTF repetitions
    - better mac80211 iterators to enumerate resources
    - initial UHR (Wi-Fi 8) support for cfg80211/mac80211
 
  - WiFi drivers:
    - Qualcomm/Atheros:
      - ath11k: support for Channel Frequency Response measurement
      - ath12k: a significant driver refactor to support
        multi-wiphy devices and and pave the way for future device support
        in the same driver (rather than splitting to ath13k)
      - ath12k: support for the QCC2072 chipset
    - Intel:
      - iwlwifi: partial Neighbor Awareness Networking (NAN) support
      - iwlwifi: initial support for U-NII-9 and IEEE 802.11bn
    - RealTek (rtw89):
      - preparations for RTL8922DE support
 
  - Bluetooth:
    - implement setsockopt(BT_PHY) to set the connection packet type/PHY
    - set link_policy on incoming ACL connections
 
  - Bluetooth drivers:
    - btusb: add support for MediaTek7920, Realtek RTL8761BU and 8851BE
    - btqca: add WCN6855 firmware priority selection feature
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core & protocols:

   - A significant effort all around the stack to guide the compiler to
     make the right choice when inlining code, to avoid unneeded calls
     for small helper and stack canary overhead in the fast-path.

     This generates better and faster code with very small or no text
     size increases, as in many cases the call generated more code than
     the actual inlined helper.

   - Extend AccECN implementation so that is now functionally complete,
     also allow the user-space enabling it on a per network namespace
     basis.

   - Add support for memory providers with large (above 4K) rx buffer.
     Paired with hw-gro, larger rx buffer sizes reduce the number of
     buffers traversing the stack, dincreasing single stream CPU usage
     by up to ~30%.

   - Do not add HBH header to Big TCP GSO packets. This simplifies the
     RX path, the TX path and the NIC drivers, and is possible because
     user-space taps can now interpret correctly such packets without
     the HBH hint.

   - Allow IPv6 routes to be configured with a gateway address that is
     resolved out of a different interface than the one specified,
     aligning IPv6 to IPv4 behavior.

   - Multi-queue aware sch_cake. This makes it possible to scale the
     rate shaper of sch_cake across multiple CPUs, while still enforcing
     a single global rate on the interface.

   - Add support for the nbcon (new buffer console) infrastructure to
     netconsole, enabling lock-free, priority-based console operations
     that are safer in crash scenarios.

   - Improve the TCP ipv6 output path to cache the flow information,
     saving cpu cycles, reducing cache line misses and stack use.

   - Improve netfilter packet tracker to resolve clashes for most
     protocols, avoiding unneeded drops on rare occasions.

   - Add IP6IP6 tunneling acceleration to the flowtable infrastructure.

   - Reduce tcp socket size by one cache line.

   - Notify neighbour changes atomically, avoiding inconsistencies
     between the notification sequence and the actual states sequence.

   - Add vsock namespace support, allowing complete isolation of vsocks
     across different network namespaces.

   - Improve xsk generic performances with cache-alignment-oriented
     optimizations.

   - Support netconsole automatic target recovery, allowing netconsole
     to reestablish targets when underlying low-level interface comes
     back online.

  Driver API:

   - Support for switching the working mode (automatic vs manual) of a
     DPLL device via netlink.

   - Introduce PHY ports representation to expose multiple front-facing
     media ports over a single MAC.

   - Introduce "rx-polarity" and "tx-polarity" device tree properties,
     to generalize polarity inversion requirements for differential
     signaling.

   - Add helper to create, prepare and enable managed clocks.

  Device drivers:

   - Add Huawei hinic3 PF etherner driver.

   - Add DWMAC glue driver for Motorcomm YT6801 PCIe ethernet
     controller.

   - Add ethernet driver for MaxLinear MxL862xx switches

   - Remove parallel-port Ethernet driver.

   - Convert existing driver timestamp configuration reporting to
     hwtstamp_get and remove legacy ioctl().

   - Convert existing drivers to .get_rx_ring_count(), simplifing the RX
     ring count retrieval. Also remove the legacy fallback path.

   - Ethernet high-speed NICs:
      - Broadcom (bnxt, bng):
         - bnxt: add FW interface update to support FEC stats histogram
           and NVRAM defragmentation
         - bng: add TSO and H/W GRO support
      - nVidia/Mellanox (mlx5):
         - improve latency of channel restart operations, reducing the
           used H/W resources
         - add TSO support for UDP over GRE over VLAN
         - add flow counters support for hardware steering (HWS) rules
         - use a static memory area to store headers for H/W GRO,
           leading to 12% RX tput improvement
      - Intel (100G, ice, idpf):
         - ice: reorganizes layout of Tx and Rx rings for cacheline
           locality and utilizes __cacheline_group* macros on the new
           layouts
         - ice: introduces Synchronous Ethernet (SyncE) support
      - Meta (fbnic):
         - adds debugfs for firmware mailbox and tx/rx rings vectors

   - Ethernet virtual:
      - geneve: introduce GRO/GSO support for double UDP encapsulation

   - Ethernet NICs consumer, and embedded:
      - Synopsys (stmmac):
         - some code refactoring and cleanups
      - RealTek (r8169):
         - add support for RTL8127ATF (10G Fiber SFP)
         - add dash and LTR support
      - Airoha:
         - AN8811HB 2.5 Gbps phy support
      - Freescale (fec):
         - add XDP zero-copy support
      - Thunderbolt:
         - add get link setting support to allow bonding
      - Renesas:
         - add support for RZ/G3L GBETH SoC

   - Ethernet switches:
      - Maxlinear:
         - support R(G)MII slow rate configuration
         - add support for Intel GSW150
      - Motorcomm (yt921x):
         - add DCB/QoS support
      - TI:
         - icssm-prueth: support bridging (STP/RSTP) via the switchdev
           framework

   - Ethernet PHYs:
      - Realtek:
         - enable SGMII and 2500Base-X in-band auto-negotiation
         - simplify and reunify C22/C45 drivers
      - Micrel: convert bindings to DT schema

   - CAN:
      - move skb headroom content into skb extensions, making CAN
        metadata access more robust

   - CAN drivers:
      - rcar_canfd:
         - add support for FD-only mode
         - add support for the RZ/T2H SoC
      - sja1000: cleanup the CAN state handling

   - WiFi:
      - implement EPPKE/802.1X over auth frames support
      - split up drop reasons better, removing generic RX_DROP
      - additional FTM capabilities: 6 GHz support, supported number of
        spatial streams and supported number of LTF repetitions
      - better mac80211 iterators to enumerate resources
      - initial UHR (Wi-Fi 8) support for cfg80211/mac80211

   - WiFi drivers:
      - Qualcomm/Atheros:
         - ath11k: support for Channel Frequency Response measurement
         - ath12k: a significant driver refactor to support multi-wiphy
           devices and and pave the way for future device support in the
           same driver (rather than splitting to ath13k)
         - ath12k: support for the QCC2072 chipset
      - Intel:
         - iwlwifi: partial Neighbor Awareness Networking (NAN) support
         - iwlwifi: initial support for U-NII-9 and IEEE 802.11bn
      - RealTek (rtw89):
         - preparations for RTL8922DE support

   - Bluetooth:
      - implement setsockopt(BT_PHY) to set the connection packet type/PHY
      - set link_policy on incoming ACL connections

   - Bluetooth drivers:
      - btusb: add support for MediaTek7920, Realtek RTL8761BU and 8851BE
      - btqca: add WCN6855 firmware priority selection feature"

* tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1254 commits)
  bnge/bng_re: Add a new HSI
  net: macb: Fix tx/rx malfunction after phy link down and up
  af_unix: Fix memleak of newsk in unix_stream_connect().
  net: ti: icssg-prueth: Add optional dependency on HSR
  net: dsa: add basic initial driver for MxL862xx switches
  net: mdio: add unlocked mdiodev C45 bus accessors
  net: dsa: add tag format for MxL862xx switches
  dt-bindings: net: dsa: add MaxLinear MxL862xx
  selftests: drivers: net: hw: Modify toeplitz.c to poll for packets
  octeontx2-pf: Unregister devlink on probe failure
  net: renesas: rswitch: fix forwarding offload statemachine
  ionic: Rate limit unknown xcvr type messages
  tcp: inet6_csk_xmit() optimization
  tcp: populate inet->cork.fl.u.ip6 in tcp_v6_syn_recv_sock()
  tcp: populate inet->cork.fl.u.ip6 in tcp_v6_connect()
  ipv6: inet6_csk_xmit() and inet6_csk_update_pmtu() use inet->cork.fl.u.ip6
  ipv6: use inet->cork.fl.u.ip6 and np->final in ip6_datagram_dst_update()
  ipv6: use np->final in inet6_sk_rebuild_header()
  ipv6: add daddr/final storage in struct ipv6_pinfo
  net: stmmac: qcom-ethqos: fix qcom_ethqos_serdes_powerup()
  ...
 2026-02-11 19:31:52 -08:00
Linus Torvalds
1c2b4a4c2b pci-v7.0-changes 
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Merge tag 'pci-v7.0-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Don't try to enable Extended Tags on VFs since that bit is Reserved
     and causes misleading log messages (Håkon Bugge)

   - Initialize Endpoint Read Completion Boundary to match Root Port,
     regardless of ACPI _HPX (Håkon Bugge)

   - Apply _HPX PCIe Setting Record only to AER configuration, and only
     when OS owns PCIe hotplug but not AER, to avoid clobbering Extended
     Tag and Relaxed Ordering settings (Håkon Bugge)

  Resource management:

   - Move CardBus code to setup-cardbus.c and only build it when
     CONFIG_CARDBUS is set (Ilpo Järvinen)

   - Fix bridge window alignment with optional resources, where
     additional alignment requirement was previously lost (Ilpo
     Järvinen)

   - Stop over-estimating bridge window size since they are now assigned
     without any gaps between them (Ilpo Järvinen)

   - Increase resource MAX_IORES_LEVEL to avoid /proc/iomem flattening
     for nested bridges and endpoints (Ilpo Järvinen)

   - Add pbus_mem_size_optional() to handle sizes of optional resources
     (SR-IOV VF BARs, expansion ROMs, bridge windows) (Ilpo Järvinen)

   - Don't claim disabled bridge windows to avoid spurious claim
     failures (Ilpo Järvinen)

  Driver binding:

   - Fix device reference leak in pcie_port_remove_service() (Uwe
     Kleine-König)

   - Move pcie_port_bus_match() and pcie_port_bus_type to PCIe-specific
     portdrv.c (Uwe Kleine-König)

   - Convert portdrv to use pcie_port_bus_type.probe() and .remove()
     callbacks so .probe() and .remove() can eventually be removed from
     struct device_driver (Uwe Kleine-König)

  Error handling:

   - Clear stale errors on reporting agents upon probe so they don't
     look like recent errors (Lukas Wunner)

   - Add generic RAS tracepoint for hotplug events (Shuai Xue)

   - Add RAS tracepoint for link speed changes (Shuai Xue)

  Power management:

   - Avoid redundant delay on transition from D3hot to D3cold if the
     device was already in D3hot (Brian Norris)

   - Prevent runtime suspend until devices are fully initialized to
     avoid saving incompletely configured device state (Brian Norris)

  Power control:

   - Add power_on/off callbacks with generic signature to pwrseq,
     tc9563, and slot drivers so they can be used by pwrctrl core
     (Manivannan Sadhasivam)

   - Add PCIe M.2 connector support to the slot pwrctrl driver
     (Manivannan Sadhasivam)

   - Switch to pwrctrl interfaces to create, destroy, and power on/off
     devices, calling them from host controller drivers instead of the
     PCI core (Manivannan Sadhasivam)

   - Drop qcom .assert_perst() callbacks since this is now done by the
     controller driver instead of the pwrctrl driver (Manivannan
     Sadhasivam)

  Virtualization:

   - Remove an incorrect unlock in pci_slot_trylock() error handling
     (Jinhui Guo)

   - Lock the bridge device for slot reset (Keith Busch)

   - Enable ACS after IOMMU configuration on OF platforms so ACS is
     enabled an all devices; previously the first device enumerated
     (typically a Root Port) didn't have ACS enabled (Manivannan
     Sadhasivam)

   - Disable ACS Source Validation for IDT 0x80b5 and 0x8090 switches to
     work around hardware erratum; previously ACS SV was only
     temporarily disabled, which worked for enumeration but not after
     reset (Manivannan Sadhasivam)

  Peer-to-peer DMA:

   - Release per-CPU pgmap ref when vm_insert_page() fails to avoid hang
     when removing the PCI device (Hou Tao)

   - Remove incorrect p2pmem_alloc_mmap() warning about page refcount
     (Hou Tao)

  Endpoint framework:

   - Add configfs sub-groups synchronously to avoid NULL pointer
     dereference when racing with removal (Liu Song)

   - Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink()
     functions (Manikanta Maddireddy)

  ASPEED PCIe controller driver:

   - Add ASPEED Root Complex DT binding and driver (Jacky Chou)

  Freescale i.MX6 PCIe controller driver:

   - Add DT binding and driver support for an optional external refclock
     in addition to the refclock from the internal PLL (Richard Zhu)

   - Fix CLKREQ# control so host asserts it during enumeration and
     Endpoints can use it afterwards to exit the L1.2 link state
     (Richard Zhu)

  NVIDIA Tegra PCIe controller driver:

   - Export irq_domain_free_irqs() to allow PCI/MSI drivers that tear
     down MSI domains to be built as modules (Aaron Kling)

   - Allow pci-tegra to be built as a module (Aaron Kling)

  NVIDIA Tegra194 PCIe controller driver:

   - Relax Kconfig so tegra194 can be built for platforms beyond
     Tegra194 (Vidya Sagar)

  Qualcomm PCIe controller driver:

   - Merge SC8180x DT binding into SM8150 (Krzysztof Kozlowski)

   - Move SDX55, SDM845, QCS404, IPQ5018, IPQ6018, IPQ8074 Gen3,
     IPQ8074, IPQ4019, IPQ9574, APQ8064, MSM8996, APQ8084 to dedicated
     schema (Krzysztof Kozlowski)

   - Add DT binding and driver support for SA8255p Endpoint being
     configured by firmware (Mrinmay Sarkar)

   - Parse PERST# from all PCIe bridge nodes for future platforms that
     will have PERST# in Switch Downstream Ports as well as in Root
     Ports (Manivannan Sadhasivam)

  Renesas RZ/G3S PCIe controller driver:

   - Use pci_generic_config_write() since the writability provided by
     the custom wrapper is unnecessary (Claudiu Beznea)

  SOPHGO PCIe controller driver:

   - Disable ASPM L0s and L1 on Sophgo 2044 PCIe Root Ports (Inochi
     Amaoto)

  Synopsys DesignWare PCIe controller driver:

   - Extend PCI_FIND_NEXT_CAP() and PCI_FIND_NEXT_EXT_CAP() to return a
     pointer to the preceding Capability, to allow removal of
     Capabilities that are advertised but not fully implemented (Qiang
     Yu)

   - Remove MSI and MSI-X Capabilities in platforms that can't support
     them, so the PCI core automatically falls back to INTx (Qiang Yu)

   - Add ASPM L1.1 and L1.2 Substates context to debugfs ltssm_status
     for drivers that support this (Shawn Lin)

   - Skip PME_Turn_Off broadcast and L2/L3 transition during suspend if
     link is not up to avoid an unnecessary timeout (Manivannan
     Sadhasivam)

   - Revert dw-rockchip, qcom, and DWC core changes that used link-up
     IRQs to trigger enumeration instead of waiting for link to be up
     because the PCI core doesn't allocate bus number space for
     hierarchies that might be attached (Niklas Cassel)

   - Make endpoint iATU entry for MSI permanent instead of programming
     it dynamically, which is slow and racy with respect to other
     concurrent traffic, e.g., eDMA (Koichiro Den)

   - Use iMSI-RX MSI target address when possible to fix endpoints using
     32-bit MSI (Shawn Lin)

   - Allow DWC host controller driver probe to continue if device is not
     found or found but inactive; only fail when there's an error with
     the link (Manivannan Sadhasivam)

   - For controllers like NXP i.MX6QP and i.MX7D, where LTSSM registers
     are not accessible after PME_Turn_Off, simply wait 10ms instead of
     polling for L2/L3 Ready (Richard Zhu)

   - Use multiple iATU entries to map large bridge windows and DMA
     ranges when necessary instead of failing (Samuel Holland)

   - Add EPC dynamic_inbound_mapping feature bit for Endpoint
     Controllers that can update BAR inbound address translation without
     requiring EPF driver to clear/reset the BAR first, and advertise it
     for DWC-based Endpoints (Koichiro Den)

   - Add EPC subrange_mapping feature bit for Endpoint Controllers that
     can map multiple independent inbound regions in a single BAR,
     implement subrange mapping, advertise it for DWC-based Endpoints,
     and add Endpoint selftests for it (Koichiro Den)

   - Make resizable BARs work for Endpoint multi-PF configurations;
     previously it only worked for PF 0 (Aksh Garg)

   - Fix Endpoint non-PF 0 support for BAR configuration, ATU mappings,
     and Address Match Mode (Aksh Garg)

   - Set up iATU when ECAM is enabled; previously IO and MEM outbound
     windows weren't programmed, and ECAM-related iATU entries weren't
     restored after suspend/resume, so config accesses failed (Krishna
     Chaitanya Chundru)

  Miscellaneous:

   - Use system_percpu_wq and WQ_PERCPU to explicitly request per-CPU
     work so WQ_UNBOUND can eventually be removed (Marco Crivellari)"

* tag 'pci-v7.0-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (176 commits)
  PCI/bwctrl: Disable BW controller on Intel P45 using a quirk
  PCI: Disable ACS SV for IDT 0x8090 switch
  PCI: Disable ACS SV for IDT 0x80b5 switch
  PCI: Cache ACS Capabilities register
  PCI: Enable ACS after configuring IOMMU for OF platforms
  PCI: Add ACS quirk for Pericom PI7C9X2G404 switches [12d8:b404]
  PCI: Add ACS quirk for Qualcomm Hamoa & Glymur
  PCI: Use device_lock_assert() to verify device lock is held
  PCI: Use lockdep_assert_held(pci_bus_sem) to verify lock is held
  PCI: Fix pci_slot_lock () device locking
  PCI: Fix pci_slot_trylock() error handling
  PCI: Mark Nvidia GB10 to avoid bus reset
  PCI: Mark ASM1164 SATA controller to avoid bus reset
  PCI: host-generic: Avoid reporting incorrect 'missing reg property' error
  PCI/PME: Replace RMW of Root Status register with direct write
  PCI/AER: Clear stale errors on reporting agents upon probe
  PCI: Don't claim disabled bridge windows
  PCI: rzg3s-host: Fix device node reference leak in rzg3s_pcie_host_parse_port()
  PCI: dwc: Fix missing iATU setup when ECAM is enabled
  PCI: dwc: Clean up iATU index usage in dw_pcie_iatu_setup()
  ...
 2026-02-11 17:20:38 -08:00
Linus Torvalds
1e0ea4dff0 IOMMU Updates for Linux v7.0 
Including:
 
 	- Core changes:
 	  - Rust bindings for IO-pgtable code
 	  - IOMMU page allocation debugging support
 	  - Disable ATS during PCI resets
 
 	- Intel VT-d changes:
 	  - Skip dev-iotlb flush for inaccessible PCIe device
 	  - Flush cache for PASID table before using it
 	  - Use right invalidation method for SVA and NESTED domains
 	  - Ensure atomicity in context and PASID entry updates
 
 	- AMD-Vi changes:
 	  - Support for nested translations
 	  - Other minor improvements
 
 	- ARM-SMMU-v2 changes:
 	  - Configure SoC-specific prefetcher settings for Qualcomm's "MDSS".
 
 	- ARM-SMMU-v3 changes:
 	  - Improve CMDQ locking fairness for pathetically small queue sizes.
 	  - Remove tracking of the IAS as this is only relevant for AArch32 and
 	    was causing C_BAD_STE errors.
 	  - Add device-tree support for NVIDIA's CMDQV extension.
 	  - Allow some hitless transitions for the 'MEV' and 'EATS' STE fields.
 	  - Don't disable ATS for nested S1-bypass nested domains.
 	  - Additions to the kunit selftests.
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Merge tag 'iommu-updates-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Joerg Roedel:
 "Core changes:
   - Rust bindings for IO-pgtable code
   - IOMMU page allocation debugging support
   - Disable ATS during PCI resets

  Intel VT-d changes:
   - Skip dev-iotlb flush for inaccessible PCIe device
   - Flush cache for PASID table before using it
   - Use right invalidation method for SVA and NESTED domains
   - Ensure atomicity in context and PASID entry updates

  AMD-Vi changes:
   - Support for nested translations
   - Other minor improvements

  ARM-SMMU-v2 changes:
   - Configure SoC-specific prefetcher settings for Qualcomm's "MDSS"

  ARM-SMMU-v3 changes:
   - Improve CMDQ locking fairness for pathetically small queue sizes
   - Remove tracking of the IAS as this is only relevant for AArch32 and
     was causing C_BAD_STE errors
   - Add device-tree support for NVIDIA's CMDQV extension
   - Allow some hitless transitions for the 'MEV' and 'EATS' STE fields
   - Don't disable ATS for nested S1-bypass nested domains
   - Additions to the kunit selftests"

* tag 'iommu-updates-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (54 commits)
  iommupt: Always add IOVA range to iotlb_gather in gather_range_pages()
  iommu/amd: serialize sequence allocation under concurrent TLB invalidations
  iommu/amd: Fix type of type parameter to amd_iommufd_hw_info()
  iommu/arm-smmu-v3: Do not set disable_ats unless vSTE is Translate
  iommu/arm-smmu-v3-test: Add nested s1bypass/s1dssbypass coverage
  iommu/arm-smmu-v3: Mark EATS_TRANS safe when computing the update sequence
  iommu/arm-smmu-v3: Mark STE MEV safe when computing the update sequence
  iommu/arm-smmu-v3: Add update_safe bits to fix STE update sequence
  iommu/arm-smmu-v3: Add device-tree support for CMDQV driver
  iommu/tegra241-cmdqv: Decouple driver from ACPI
  iommu/arm-smmu-qcom: Restore ACTLR settings for MDSS on sa8775p
  iommu/vt-d: Fix race condition during PASID entry replacement
  iommu/vt-d: Clear Present bit before tearing down context entry
  iommu/vt-d: Clear Present bit before tearing down PASID entry
  iommu/vt-d: Flush piotlb for SVM and Nested domain
  iommu/vt-d: Flush cache for PASID table before using it
  iommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode
  iommu/vt-d: Skip dev-iotlb flush for inaccessible PCIe device without scalable mode
  rust: iommu: fix `srctree` link warning
  rust: iommu: fix Rust formatting
  ...
 2026-02-11 16:36:08 -08:00
Linus Torvalds
c22e26bd09 Landlock update for v7.0-rc1 
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Merge tag 'landlock-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:

 - extend Landlock to enforce restrictions on a whole process, similarly
   to the seccomp's TSYNC flag

 - refactor data structures to simplify code and improve performance

 - add documentation to cover missing parts

* tag 'landlock-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  mailmap: Add entry for Mickaël Salaün
  landlock: Transpose the layer masks data structure
  landlock: Add access_mask_subset() helper
  selftests/landlock: Add filesystem access benchmark
  landlock: Document audit blocker field format
  landlock: Add errata documentation section
  landlock: Add backwards compatibility for restrict flags
  landlock: Refactor TCP socket type check
  landlock: Minor reword of docs for TCP access rights
  landlock: Document LANDLOCK_RESTRICT_SELF_TSYNC
  selftests/landlock: Add LANDLOCK_RESTRICT_SELF_TSYNC tests
  landlock: Multithreading support for landlock_restrict_self()
 2026-02-11 15:57:08 -08:00
Linus Torvalds
41f1a08645 Kbuild/Kconfig updates for 7.0 
Kbuild changes
 ==============
 
 * Drop '*_probe' pattern from modpost section check allowlist, which hid
   legitimate warnings (Johan Hovold)
 
 * Disable -Wtype-limits altogether, instead of enabling at W=2 (Vincent
   Mailhol)
 
 * Improve UAPI testing to skip testing headers that require a libc when
   CONFIG_CC_CAN_LINK is not set, opening up testing of headers with no
   libc dependencies to more environments (Thomas Weißschuh)
 
 * Update gendwarfksyms documentation with required dependencies (Jihan
   LIN)
 
 * Reject invalid LLVM= values to avoid unintentionally falling back to
   system toolchain (Thomas Weißschuh)
 
 * Add a script to help run the kernel build process in a container for
   consistent environments and testing (Guillaume Tucker)
 
 * Simplify kallsyms by getting rid of the relative base (Ard Biesheuvel)
 
 * Performance and usability improvements to scripts/make_fit.py (Simon
   Glass)
 
 * Minor various clean ups and fixes
 
 Kconfig changes
 ===============
 
 * Move XPM icons to individual files, clearing up GTK deprecation
   warnings (Rostislav Krasny)
 
 * Support
 
     depends on FOO if BAR
 
   as syntactic sugar for
 
     depends on FOO || !BAR' (Nicolas Pitre, Graham Roff)
 
 * Refactor merge_config.sh to use awk over shell/sed/grep, dramatically
   speeding up processing large number of config fragments (Anders
   Roxell, Mikko Rapeli)
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Merge tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild/Kconfig updates from Nathan Chancellor:
 "Kbuild:

   - Drop '*_probe' pattern from modpost section check allowlist, which
     hid legitimate warnings (Johan Hovold)

   - Disable -Wtype-limits altogether, instead of enabling at W=2
     (Vincent Mailhol)

   - Improve UAPI testing to skip testing headers that require a libc
     when CONFIG_CC_CAN_LINK is not set, opening up testing of headers
     with no libc dependencies to more environments (Thomas Weißschuh)

   - Update gendwarfksyms documentation with required dependencies
     (Jihan LIN)

   - Reject invalid LLVM= values to avoid unintentionally falling back
     to system toolchain (Thomas Weißschuh)

   - Add a script to help run the kernel build process in a container
     for consistent environments and testing (Guillaume Tucker)

   - Simplify kallsyms by getting rid of the relative base (Ard
     Biesheuvel)

   - Performance and usability improvements to scripts/make_fit.py
     (Simon Glass)

   - Minor various clean ups and fixes

  Kconfig:

   - Move XPM icons to individual files, clearing up GTK deprecation
     warnings (Rostislav Krasny)

   - Support

        depends on FOO if BAR

     as syntactic sugar for

        depends on FOO || !BAR

     (Nicolas Pitre, Graham Roff)

   - Refactor merge_config.sh to use awk over shell/sed/grep,
     dramatically speeding up processing large number of config
     fragments (Anders Roxell, Mikko Rapeli)"

* tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (39 commits)
  kbuild: remove dependency of run-command on config
  scripts/make_fit: Compress dtbs in parallel
  scripts/make_fit: Support a few more parallel compressors
  kbuild: Support a FIT_EXTRA_ARGS environment variable
  scripts/make_fit: Move dtb processing into a function
  scripts/make_fit: Support an initial ramdisk
  scripts/make_fit: Speed up operation
  rust: kconfig: Don't require RUST_IS_AVAILABLE for rustc-option
  MAINTAINERS: Add scripts/install.sh into Kbuild entry
  modpost: Amend ppc64 save/restfpr symnames for -Os build
  MIPS: tools: relocs: Ship a definition of R_MIPS_PC32
  streamline_config.pl: remove superfluous exclamation mark
  kbuild: dummy-tools: Add python3
  scripts: kconfig: merge_config.sh: warn on duplicate input files
  scripts: kconfig: merge_config.sh: use awk in checks too
  scripts: kconfig: merge_config.sh: refactor from shell/sed/grep to awk
  kallsyms: Get rid of kallsyms relative base
  mips: Add support for PC32 relocations in vmlinux
  Documentation: dev-tools: add container.rst page
  scripts: add tool to run containerized builds
  ...
 2026-02-11 13:40:35 -08:00
Linus Torvalds
939faf71cf drm for 7.0-rc1 
core:
 - drop kgdb support
 - replace system workqueue with percpu
 - account for property blobs in memcg
 - MAINTAINERS updates for xe + buddy
 
 rust:
 - Fix documentation for Registration constructors.
 - Use pin_init::zeroed() for fops initialization.
 - Annotate DRM helpers with __rust_helper.
 - Improve safety documentation for gem::Object::new().
 - Update AlwaysRefCounted imports.
 - mm: Prevent integer overflow in page_align().
 
 atomic:
 - add drm_device pointer to drm_private_obj
 - introduce gamma/degamma LUT size check
 
 buddy:
 - fix free_trees memory leak
 - prevent BUG_ON
 
 bridge:
 - introduce drm_bridge_unplug/enter/exit
 - add connector argument to .hpd_notify
 - lots of recounting conversions
 - convert rockchip inno hdmi to bridge
 - lontium-lt9611uxc: switch to HDMI audio helpers
 - dw-hdmi-qp: add support for HPD-less setups
 - Algoltek AG6311 support
 
 panels:
 - edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H
 - st75751: add SPI support
 - Sitronix ST7920, Samsung LTL106HL02
 - LG LH546WF1-ED01, HannStar HSD156J
 - BOE NV130WUM-T08
 - Innolux G150XGE-L05
 - Anbernic RG-DS
 
 dma-buf:
 - improve sg_table debugging
 - add tracepoints
 - call clear_page instead of memset
 - start to introduce cgroup memory accounting in heaps
 - remove sysfs stats
 
 dma-fence:
 - add new helpers
 
 dp:
 - mst: avoid oob access with vcpi=0
 
 hdmi:
 - limit infoframes exposure to userspace
 
 gem:
 - reduce page table overhead with THP
 - fix leak in drm_gem_get_unmapped_area
 
 gpuvm:
 - API sanitation for rust bindings
 
 sched:
 - introduce new helpers
 
 panic:
 - report invalid panic modes
 - add kunit tests
 
 i915/xe display:
 - Expose sharpness only if num_scalers is >= 2
 - Add initial Xe3P_LPD for NVL
 - BMG FBC support
 - Add MTL+ platforms to support dpll framework
 _ fix DIMM_S DRM decoding on ICL
 - Return to using AUX interrupts
 - PSR/Panel replay refactoring
 - use consolidation HDMI tables
 - Xe3_LPD CD2X dividier changes
 
 xe:
 - vfio: add vfio_pci for intel GPU
 - multi queue support
 - dynamic pagemaps and multi-device SVM
 - expose temp attribs in hwmon
 - NO_COMPRESSION bo flag
 - expose MERT OA unit
 - sysfs survivability refactor
 - SRIOV PF: add MERT support
 - enable SR-IOV VF migration
 - Enable I2C/NVM on Crescent Island
 - Xe3p page reclaimation support
 - introduce SRIOV scheduler groups
 - add SoC remappt support in system controller
 - insert compiler barriers in GuC code
 - define NVL GuC firmware
 - handle GT resume failure
 - fix drm scheduler layering violations
 - enable GSC loading and PXP for PTL
 - disable GuC Power DCC strategy on PTL
 - unregister drm device on probe error
 
 i915:
 - move to kernel standard fault injection
 - bump recommended GuC version for DG2 and MTL
 
 amdgpu:
 - SMUIO 15.x, PSP 15.x support
 - IH 6.1.1/7.1 support
 - MMHUB 3.4/4.2 support
 - GC 11.5.4/12.1 support
 - SDMA 6.1.4/7.1/7.11.4 support
 - JPEG 5.3 support
 - UserQ updates
 - GC 9 gfx queue reset support
 - TTM memory ops parallelization
 - convert legacy logging to new helpers
 - DC analog fixes
 
 amdkfd:
 - GC 11.5.4/12.1 suppport
 - SDMA 6.1.4/7.1 support
 - per context support
 - increase kfd process hash table
 - Reserved SDMA rework
 
 radeon:
 - convert legacy logging to new helpers
 - use devm for i2c adapters
 
 msm:
 - GPU
   - Document a612/RGMU dt bindings
   - UBWC 6.0 support (for A840 / Kaanapali)
   - a225 support
 - DPU:
   - Switched to use virtual planes by default
   - Fixed DSI CMD panels on DPU 3.x
   - Rewrote format handling to remove intermediate representation
   - Fixed watchdog on DPU 8.x+
   - Fixed TE / Vsync source setting on DPU 8.x+
   - Added 3D_Mux on SC7280
   - Kaanapali platform support
   - Fixed UBWC register programming
   - Made RM reserve DSPP-enabled mixers for CRTCs with LMs.
   - Gamma correction support
 - DP:
   - Enabled support for eDP 1.4+ link rate tables
   - Fixed MDSS1 DP indices on SA8775P, making them to work
   - Fixed msm_dp_ctrl_config_msa() to work with LLVM 20
 - DSI:
   - Documented QCS8300 as compatible with SA8775P
   - Kaanapali platform support
 - DSI PHY:
   - switched to divider_determine_rate()
 - MDP5:
   - Dropped support for MSM8998, SDM660 and SDM630 (switched over
     to DPU)
 -  MDSS:
   - Kaanapali platform support
   - Fixed UBWC register programming
 
 nova-core:
 - Prepare for Turing support. This includes parsing and handling
   Turing-specific firmware headers and sections as well as a Turing
   Falcon HAL implementation.
 - Get rid of the Result<impl PinInit<T, E>> anti-pattern.
 - Relocate initializer-specific code into the appropriate initializer.
 - Use CStr::from_bytes_until_nul() to remove custom helpers.
 - Improve handling of unexpected firmware values.
 - Clean up redundant debug prints.
 - Replace c_str!() with native Rust C-string literals.
 - Update nova-core task list.
 
 nova:
 - Align GEM object size to system page size.
 
 tyr:
 - Use generated uAPI bindings for GpuInfo.
 - Replace manual sleeps with read_poll_timeout().
 - Replace c_str!() with native Rust C-string literals.
 - Suppress warnings for unread fields.
 - Fix incorrect register name in print statement.
 
 nouveau:
 - fix big page table support races in PTE management
 - improve reclocking on tegra 186+
 
 amdxdna:
 - fix suspend race conditions
 - improve handling of zero tail pointers
 - fix cu_idx overwritten during command setup
 - enable hardware context priority
 - remove NPU2 support
 - update message buffer allocation requirements
 - update firmware version check
 
 ast:
 - support imported cursor buffers
 - big endian fixes
 
 etnaviv:
 - add PPU flop reset support
 
 imagination:
 - add AM62P support
 - introduce hw version checks
 
 ivpu:
 - implement warm boot flow
 
 panfrost:
 - add bo sync ioctl
 - add GPU_PM_RT support for RZ/G3E SoC
 
 panthor:
 - add bo sync ioctl
 - enable timestamp propagation
 - scheduler robustness improvements
 - VM termination fixes
 - huge page support
 
 rockchip:
 - RK3368 HDMI Support
 - get rid of atomic_check fixups
 - RK3506 support
 - RK3576/RK3588 improved HPD handling
 
 rz-du:
 - RZ/V2H(P) MIPI-DSI Support
 
 v3d:
 - fix DMA segment size
 - convert to new logging helpers
 
 mediatek:
 - move DP training to hotplug thread
 - convert logging to new helpers
 - add support for HS speed DSI
 - Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support
 
 atmel-hlcdc:
 - switch to drmm resource
 - support nomodeset
 - use newer helpers
 
 hisilicon:
 - fix various DP bugs
 
 renesas:
 - fix kernel panic on reboot
 
 exynos:
 - fix vidi_connection_ioctl using wrong device
 - fix vidi_connection deref user ptr
 - fix concurrency regression with vidi_context
 
 vkms:
 - add configfs support for display configuration
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Merge tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "Highlights:
   - amdgpu support for lots of new IP blocks which means newer GPUs
   - xe has a lot of SR-IOV and SVM improvements
   - lots of intel display refactoring across i915/xe
   - msm has more support for gen8 platforms
   - Given up on kgdb/kms integration, it's too hard on modern hw

  core:
   - drop kgdb support
   - replace system workqueue with percpu
   - account for property blobs in memcg
   - MAINTAINERS updates for xe + buddy

  rust:
   - Fix documentation for Registration constructors
   - Use pin_init::zeroed() for fops initialization
   - Annotate DRM helpers with __rust_helper
   - Improve safety documentation for gem::Object::new()
   - Update AlwaysRefCounted imports
   - mm: Prevent integer overflow in page_align()

  atomic:
   - add drm_device pointer to drm_private_obj
   - introduce gamma/degamma LUT size check

  buddy:
   - fix free_trees memory leak
   - prevent BUG_ON

  bridge:
   - introduce drm_bridge_unplug/enter/exit
   - add connector argument to .hpd_notify
   - lots of recounting conversions
   - convert rockchip inno hdmi to bridge
   - lontium-lt9611uxc: switch to HDMI audio helpers
   - dw-hdmi-qp: add support for HPD-less setups
   - Algoltek AG6311 support

  panels:
   - edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H
   - st75751: add SPI support
   - Sitronix ST7920, Samsung LTL106HL02
   - LG LH546WF1-ED01, HannStar HSD156J
   - BOE NV130WUM-T08
   - Innolux G150XGE-L05
   - Anbernic RG-DS

  dma-buf:
   - improve sg_table debugging
   - add tracepoints
   - call clear_page instead of memset
   - start to introduce cgroup memory accounting in heaps
   - remove sysfs stats

  dma-fence:
   - add new helpers

  dp:
   - mst: avoid oob access with vcpi=0

  hdmi:
   - limit infoframes exposure to userspace

  gem:
   - reduce page table overhead with THP
   - fix leak in drm_gem_get_unmapped_area

  gpuvm:
   - API sanitation for rust bindings

  sched:
   - introduce new helpers

  panic:
   - report invalid panic modes
   - add kunit tests

  i915/xe display:
   - Expose sharpness only if num_scalers is >= 2
   - Add initial Xe3P_LPD for NVL
   - BMG FBC support
   - Add MTL+ platforms to support dpll framework
   _ fix DIMM_S DRM decoding on ICL
   - Return to using AUX interrupts
   - PSR/Panel replay refactoring
   - use consolidation HDMI tables
   - Xe3_LPD CD2X dividier changes

  xe:
   - vfio: add vfio_pci for intel GPU
   - multi queue support
   - dynamic pagemaps and multi-device SVM
   - expose temp attribs in hwmon
   - NO_COMPRESSION bo flag
   - expose MERT OA unit
   - sysfs survivability refactor
   - SRIOV PF: add MERT support
   - enable SR-IOV VF migration
   - Enable I2C/NVM on Crescent Island
   - Xe3p page reclaimation support
   - introduce SRIOV scheduler groups
   - add SoC remappt support in system controller
   - insert compiler barriers in GuC code
   - define NVL GuC firmware
   - handle GT resume failure
   - fix drm scheduler layering violations
   - enable GSC loading and PXP for PTL
   - disable GuC Power DCC strategy on PTL
   - unregister drm device on probe error

  i915:
   - move to kernel standard fault injection
   - bump recommended GuC version for DG2 and MTL

  amdgpu:
   - SMUIO 15.x, PSP 15.x support
   - IH 6.1.1/7.1 support
   - MMHUB 3.4/4.2 support
   - GC 11.5.4/12.1 support
   - SDMA 6.1.4/7.1/7.11.4 support
   - JPEG 5.3 support
   - UserQ updates
   - GC 9 gfx queue reset support
   - TTM memory ops parallelization
   - convert legacy logging to new helpers
   - DC analog fixes

  amdkfd:
   - GC 11.5.4/12.1 suppport
   - SDMA 6.1.4/7.1 support
   - per context support
   - increase kfd process hash table
   - Reserved SDMA rework

  radeon:
   - convert legacy logging to new helpers
   - use devm for i2c adapters

  msm:
   - GPU
      - Document a612/RGMU dt bindings
      - UBWC 6.0 support (for A840 / Kaanapali)
      - a225 support
   - DPU:
      - Switch to use virtual planes by default
      - Fix DSI CMD panels on DPU 3.x
      - Rewrite format handling to remove intermediate representation
      - Fix watchdog on DPU 8.x+
      - Fix TE / Vsync source setting on DPU 8.x+
      - Add 3D_Mux on SC7280
      - Kaanapali platform support
      - Fix UBWC register programming
      - Make RM reserve DSPP-enabled mixers for CRTCs with LMs
      - Gamma correction support
   - DP:
      - Enable support for eDP 1.4+ link rate tables
      - Fix MDSS1 DP indices on SA8775P, making them to work
      - Fix msm_dp_ctrl_config_msa() to work with LLVM 20
   - DSI:
      - Document QCS8300 as compatible with SA8775P
      - Kaanapali platform support
   - DSI PHY:
      - switch to divider_determine_rate()
   - MDP5:
      - Drop support for MSM8998, SDM660 and SDM630 (switch over to DPU)
   -  MDSS:
      - Kaanapali platform support
      - Fixed UBWC register programming

  nova-core:
   - Prepare for Turing support. This includes parsing and handling
     Turing-specific firmware headers and sections as well as a Turing
     Falcon HAL implementation
   - Get rid of the Result<impl PinInit<T, E>> anti-pattern
   - Relocate initializer-specific code into the appropriate initializer
   - Use CStr::from_bytes_until_nul() to remove custom helpers
   - Improve handling of unexpected firmware values
   - Clean up redundant debug prints
   - Replace c_str!() with native Rust C-string literals
   - Update nova-core task list

  nova:
   - Align GEM object size to system page size

  tyr:
   - Use generated uAPI bindings for GpuInfo
   - Replace manual sleeps with read_poll_timeout()
   - Replace c_str!() with native Rust C-string literals
   - Suppress warnings for unread fields
   - Fix incorrect register name in print statement

  nouveau:
   - fix big page table support races in PTE management
   - improve reclocking on tegra 186+

  amdxdna:
   - fix suspend race conditions
   - improve handling of zero tail pointers
   - fix cu_idx overwritten during command setup
   - enable hardware context priority
   - remove NPU2 support
   - update message buffer allocation requirements
   - update firmware version check

  ast:
   - support imported cursor buffers
   - big endian fixes

  etnaviv:
   - add PPU flop reset support

  imagination:
   - add AM62P support
   - introduce hw version checks

  ivpu:
   - implement warm boot flow

  panfrost:
   - add bo sync ioctl
   - add GPU_PM_RT support for RZ/G3E SoC

  panthor:
   - add bo sync ioctl
   - enable timestamp propagation
   - scheduler robustness improvements
   - VM termination fixes
   - huge page support

  rockchip:
   - RK3368 HDMI Support
   - get rid of atomic_check fixups
   - RK3506 support
   - RK3576/RK3588 improved HPD handling

  rz-du:
   - RZ/V2H(P) MIPI-DSI Support

  v3d:
   - fix DMA segment size
   - convert to new logging helpers

  mediatek:
   - move DP training to hotplug thread
   - convert logging to new helpers
   - add support for HS speed DSI
   - Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support

  atmel-hlcdc:
   - switch to drmm resource
   - support nomodeset
   - use newer helpers

  hisilicon:
   - fix various DP bugs

  renesas:
   - fix kernel panic on reboot

  exynos:
   - fix vidi_connection_ioctl using wrong device
   - fix vidi_connection deref user ptr
   - fix concurrency regression with vidi_context

  vkms:
   - add configfs support for display configuration

* tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel: (1610 commits)
  drm/xe/pm: Disable D3Cold for BMG only on specific platforms
  drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep
  drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early
  drm/xe: Fix kerneldoc for xe_migrate_exec_queue
  drm/xe/query: Fix topology query pointer advance
  drm/xe/guc: Fix kernel-doc warning in GuC scheduler ABI header
  drm/xe/guc: Fix CFI violation in debugfs access.
  accel/amdxdna: Move RPM resume into job run function
  accel/amdxdna: Fix incorrect DPM level after suspend/resume
  nouveau/vmm: start tracking if the LPT PTE is valid. (v6)
  nouveau/vmm: increase size of vmm pte tracker struct to u32 (v2)
  nouveau/vmm: rewrite pte tracker using a struct and bitfields.
  accel/amdxdna: Fix incorrect error code returned for failed chain command
  accel/amdxdna: Remove hardware context status
  drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe()
  drm/panel: ilitek-ili9882t: Remove duplicate initializers in tianma_il79900a_dsc
  drm/i915/display: fix the pixel normalization handling for xe3p_lpd
  drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free
  drm/exynos: vidi: fix to avoid directly dereferencing user pointer
  drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
  ...
 2026-02-11 12:55:44 -08:00
Linus Torvalds
b7ef56a076 [GIT PULL for v7.0] media updates 
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Merge tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Add support for GMSL1 and GMSL‑coax modules (PCI mgb4)

 - Add driver for TI VIP

 - AV1 – first kernel support (pixel‑format, decoder, transcoder)

 - Three new camera‑sensor drivers (os05b10, s5k3m5, s5kjn1)

 - Synopsys CSI‑2 receiver driver

 - Verisilicon & rkvdec – major fixes and enhancements

 - IPU6 (and 7) fixes and preparation for metadata

 - omap3isp: v4l2-compliance updates

 - Fix DVB streaming, drop wait_prepare/finish (dvb/vb2)

* tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (307 commits)
  media: uvcvideo: Pass allocation size directly to uvc_alloc_urb_buffer
  media: uvcvideo: Fix allocation for small frame sizes
  media: uvcvideo: Return queued buffers on start_streaming() failure
  media: uvcvideo: Create an ID namespace for streaming output terminals
  media: rkvdec: Add HEVC support for the VDPU383 variant
  media: rkvdec: Add HEVC support for the VDPU381 variant
  media: rkvdec: Add H264 support for the VDPU383 variant
  media: rkvdec: Add H264 support for the VDPU381 variant
  media: rkvdec: Disable multicore support
  media: rkvdec: Enable all clocks without naming them
  media: rkvdec: Support per-variant interrupt handler
  media: rkvdec: Add RCB and SRAM support
  media: rkvdec: Add variant specific coded formats list
  media: rkvdec: Move hevc functions to common file
  media: rkvdec: Move h264 functions to common file
  media: rkvdec: Use structs to represent the HW RPS
  media: rkvdec: Move cabac tables to their own source file
  media: rkvdec: Switch to using structs instead of writel
  media: visl: Add HEVC short and long term RPS sets
  media: v4l2-ctrls: Add hevc_ext_sps_[ls]t_rps controls
  ...
 2026-02-11 12:20:25 -08:00
Linus Torvalds
d061251387 sound updates for 7.0-rc1 
It's been relatively calm for a new era; majority of changes are for
 ASoC, mostly device-specific changes, while there are a bit of
 cleanups in core stuff.  A few SPI API and regmap updates are included
 to be used by sound drivers, too.
 
 Core:
 - A few trivial cleanups about __free() and runtime PM macros
 - Convert to new snd_seq_bus binding
 
 ASoC:
 - Generic SDCA support for reporting jack events
 - Continuing platform support, cleanup and feature improvements for
   AMD, Intel, Qualcomm and SOF code
 - Platform description improvements for the Cirrus drivers
 - Support for NXP i.MX952, Realtek RT1320 and RT5575, and Sophogo
   CV1800B
 
 HD- and USB-audio:
 - Many quirks as usual
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Merge tag 'sound-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "It's been relatively calm for a new era; majority of changes are for
  ASoC, mostly device-specific changes, while there are a bit of
  cleanups in core stuff. A few SPI API and regmap updates are included
  to be used by sound drivers, too.

  Core:
   - A few trivial cleanups about __free() and runtime PM macros
   - Convert to new snd_seq_bus binding

  ASoC:
   - Generic SDCA support for reporting jack events
   - Continuing platform support, cleanup and feature improvements for
     AMD, Intel, Qualcomm and SOF code
   - Platform description improvements for the Cirrus drivers
   - Support for NXP i.MX952, Realtek RT1320 and RT5575, and Sophogo
     CV1800B

  HD- and USB-audio:
   - Many quirks as usual"

* tag 'sound-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (341 commits)
  ALSA: usb-audio: Add DSD support for iBasso DC04U
  ALSA: mixer: oss: Add card disconnect checkpoints
  ASoC: SOF: ipc4-control: Set correct error code in refresh_bytes_control
  ASoC: SOF: Intel: select CONFIG_SND_HDA_EXT_CORE from SND_SOC_SOF_HDA_COMMON
  ALSA: usb-audio: Add iface reset and delay quirk for AB13X USB Audio
  ASoC: amd: maintainer information
  ALSA: ctxfi: Add quirk for SE-300PCIE variant (160b:0102)
  ALSA: hda/generic: fix typos in comments
  ALSA: hda/realtek - Enable mute LEDs on HP ENVY x360 15-es0xxx
  ALSA: hda/conexant: Add quirk for HP ZBook Studio G4
  ASoC: fsl_asrc_dma: allocate memory from dma device
  ASoC: fsl_asrc: Add support for i.MX952 platform
  ASoC: fsl_asrc_m2m: Add option to start ASRC before DMA device for M2M
  ASoC: dt-bindings: fsl,imx-asrc: Add support for i.MX952 platform
  ALSA: oss: delete self assignment
  ASoC: rockchip: spdif: Convert to FIELD_PREP
  ASoC: rockchip: spdif: Fill IEC958 CS info per params
  ASoC: rockchip: spdif: Add support for format S32_LE
  ASoC: rockchip: spdif: Add support for set mclk rate
  ASoC: rockchip: spdif: Swap PCM and DAI component registration order
  ...
 2026-02-11 11:43:00 -08:00
Paolo Bonzini
b1195183ed - gmap rewrite: completely new memory management for kvm/s390 
- vSIE improvement
 - maintainership change for s390 vfio-pci
 - small quality of life improvement for protected guests
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Merge tag 'kvm-s390-next-7.0-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

- gmap rewrite: completely new memory management for kvm/s390
- vSIE improvement
- maintainership change for s390 vfio-pci
- small quality of life improvement for protected guests
 2026-02-11 18:52:27 +01:00
Paolo Abeni
83310d6133 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Merge in late fixes in preparation for the net-next PR.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2026-02-11 15:14:35 +01:00
Linus Torvalds
36ae1c45b2 Scheduler changes for v7.0: 
Scheduler Kconfig space updates:
 
  - Further consolidate configurable preemption modes: reduce
    the number of architectures that are allowed to offer
    PREEMPT_NONE and PREEMPT_VOLUNTARY, reducing the number
    of preemption models from four to just two: 'full' and 'lazy'
    on up-to-date architectures (arm64, loongarch, powerpc,
    riscv, s390, x86).
 
    None and voluntary are only available as legacy features
    on platforms that don't implement lazy preemption yet,
    or which don't even support preemption.
 
    The goal is to eventually remove cond_resched() and
    voluntary preemption altogether.
 
    (Peter Zijlstra)
 
 RSEQ based 'scheduler time slice extension' support:
 
 This allows a thread to request a time slice extension when it
 enters a critical section to avoid contention on a resource when
 the thread is scheduled out inside of the critical section.
 
  - Add fields and constants for time slice extension
  - Provide static branch for time slice extensions
  - Add statistics for time slice extensions
  - Add prctl() to enable time slice extensions
  - Implement sys_rseq_slice_yield()
  - Implement syscall entry work for time slice extensions
  - Implement time slice extension enforcement timer
  - Reset slice extension when scheduled
  - Implement rseq_grant_slice_extension()
  - entry: Hook up rseq time slice extension
  - selftests: Implement time slice extension test
 
    (Thomas Gleixner)
 
  - Allow registering RSEQ with slice extension
  - Move slice_ext_nsec to debugfs
  - Lower default slice extension
  - selftests/rseq: Add rseq slice histogram script
 
    (Peter Zijlstra)
 
 Scheduler performance/scalability improvements:
 
  - Update rq->avg_idle when a task is moved to an idle CPU,
    which improves the scalability of various workloads.
    (Shubhang Kaushik)
 
  - Reorder fields in 'struct rq' for better caching
    (Blake Jones)
 
  - Fair scheduler SMP NOHZ balancing code speedups:
 
    - Move checking for nohz cpus after time check
    - Change likelyhood of nohz.nr_cpus
    - Remove nohz.nr_cpus and use weight of cpumask instead
 
      (Shrikanth Hegde)
 
  - Avoid false sharing for sched_clock_irqtime (Wangyang Guo)
 
  - Drop useless cpumask_empty() in find_energy_efficient_cpu()
  - Simplify task_numa_find_cpu()
  - Use cpumask_weight_and() in sched_balance_find_dst_group()
 
    (Yury Norov)
 
 DL scheduler updates:
 
  - Add a deadline server for sched_ext tasks (by Andrea Righi and
    Joel Fernandes, with fixes by Peter Zijlstra)
 
 RT scheduler updates:
 
  - Skip currently executing CPU in rto_next_cpu() (Chen Jinghuang)
 
 Entry code updates and performance improvements, which is part of the
 scheduler tree in this cycle due to interdependencies with the RSEQ
 based time slice extension work:
 
   - Remove unused syscall argument from syscall_trace_enter()
   - Rework syscall_exit_to_user_mode_work() for architecture reuse
   - Add arch_ptrace_report_syscall_entry/exit()
   - Inline syscall_exit_work() and syscall_trace_enter()
 
     (Jinjie Ruan)
 
 Scheduler core updates:
 
  - Rework sched_class::wakeup_preempt() and rq_modified_*()
  - Avoid rq->lock bouncing in sched_balance_newidle()
  - Rename rcu_dereference_check_sched_domain() =>
           rcu_dereference_sched_domain()
  - <linux/compiler_types.h>: Add the __signed_scalar_typeof() helper
 
    (Peter Zijlstra)
 
 Fair scheduler updates/refactoring:
 
  - Fold the sched_avg update
  - Change rcu_dereference_check_sched_domain() to rcu-sched
  - Switch to rcu_dereference_all()
  - Remove superfluous rcu_read_lock()
  - Limit hrtick work
 
    (Peter Zijlstra)
 
  - Join two #ifdef CONFIG_FAIR_GROUP_SCHED blocks
  - Clean up comments in 'struct cfs_rq'
  - Separate se->vlag from se->vprot
  - Rename cfs_rq::avg_load to cfs_rq::sum_weight
  - Rename cfs_rq::avg_vruntime to ::sum_w_vruntime & helper functions
  - Introduce and use the vruntime_cmp() and vruntime_op() wrappers
    for wrapped-signed aritmetics
  - Sort out 'blocked_load*' namespace noise
 
    (Ingo Molnar)
 
 Scheduler debugging code updates:
 
  - Export hidden tracepoints to modules (Gabriele Monaco)
 
  - Convert copy_from_user() + kstrtouint() to kstrtouint_from_user()
    (Fushuai Wang)
 
  - Add assertions to QUEUE_CLASS (Peter Zijlstra)
 
  - hrtimer: Fix tracing oddity (Thomas Gleixner)
 
 Misc fixes and cleanups:
 
  - Re-evaluate scheduling when migrating queued tasks out of
    throttled cgroups (Zicheng Qu)
 
  - Remove task_struct->faults_disabled_mapping (Christoph Hellwig)
 
  - Fix math notation errors in avg_vruntime comment (Zhan Xusheng)
 
  - sched/cpufreq: Use %pe format for PTR_ERR() printing (zenghongling)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Scheduler Kconfig space updates:

   - Further consolidate configurable preemption modes (Peter Zijlstra)

     Reduce the number of architectures that are allowed to offer
     PREEMPT_NONE and PREEMPT_VOLUNTARY, reducing the number of
     preemption models from four to just two: 'full' and 'lazy' on
     up-to-date architectures (arm64, loongarch, powerpc, riscv, s390,
     x86).

     None and voluntary are only available as legacy features on
     platforms that don't implement lazy preemption yet, or which don't
     even support preemption.

     The goal is to eventually remove cond_resched() and voluntary
     preemption altogether.

  RSEQ based 'scheduler time slice extension' support (Thomas Gleixner
  and Peter Zijlstra):

  This allows a thread to request a time slice extension when it enters
  a critical section to avoid contention on a resource when the thread
  is scheduled out inside of the critical section.

   - Add fields and constants for time slice extension
   - Provide static branch for time slice extensions
   - Add statistics for time slice extensions
   - Add prctl() to enable time slice extensions
   - Implement sys_rseq_slice_yield()
   - Implement syscall entry work for time slice extensions
   - Implement time slice extension enforcement timer
   - Reset slice extension when scheduled
   - Implement rseq_grant_slice_extension()
   - entry: Hook up rseq time slice extension
   - selftests: Implement time slice extension test
   - Allow registering RSEQ with slice extension
   - Move slice_ext_nsec to debugfs
   - Lower default slice extension
   - selftests/rseq: Add rseq slice histogram script

  Scheduler performance/scalability improvements:

   - Update rq->avg_idle when a task is moved to an idle CPU, which
     improves the scalability of various workloads (Shubhang Kaushik)

   - Reorder fields in 'struct rq' for better caching (Blake Jones)

   - Fair scheduler SMP NOHZ balancing code speedups (Shrikanth Hegde):
      - Move checking for nohz cpus after time check
      - Change likelyhood of nohz.nr_cpus
      - Remove nohz.nr_cpus and use weight of cpumask instead

   - Avoid false sharing for sched_clock_irqtime (Wangyang Guo)

   - Cleanups (Yury Norov):
      - Drop useless cpumask_empty() in find_energy_efficient_cpu()
      - Simplify task_numa_find_cpu()
      - Use cpumask_weight_and() in sched_balance_find_dst_group()

  DL scheduler updates:

   - Add a deadline server for sched_ext tasks (by Andrea Righi and Joel
     Fernandes, with fixes by Peter Zijlstra)

  RT scheduler updates:

   - Skip currently executing CPU in rto_next_cpu() (Chen Jinghuang)

  Entry code updates and performance improvements (Jinjie Ruan)

  This is part of the scheduler tree in this cycle due to inter-
  dependencies with the RSEQ based time slice extension work:

    - Remove unused syscall argument from syscall_trace_enter()
    - Rework syscall_exit_to_user_mode_work() for architecture reuse
    - Add arch_ptrace_report_syscall_entry/exit()
    - Inline syscall_exit_work() and syscall_trace_enter()

  Scheduler core updates (Peter Zijlstra):

   - Rework sched_class::wakeup_preempt() and rq_modified_*()
   - Avoid rq->lock bouncing in sched_balance_newidle()
   - Rename rcu_dereference_check_sched_domain() =>
            rcu_dereference_sched_domain()
   - <linux/compiler_types.h>: Add the __signed_scalar_typeof() helper

  Fair scheduler updates/refactoring (Peter Zijlstra and Ingo Molnar):

   - Fold the sched_avg update
   - Change rcu_dereference_check_sched_domain() to rcu-sched
   - Switch to rcu_dereference_all()
   - Remove superfluous rcu_read_lock()
   - Limit hrtick work
   - Join two #ifdef CONFIG_FAIR_GROUP_SCHED blocks
   - Clean up comments in 'struct cfs_rq'
   - Separate se->vlag from se->vprot
   - Rename cfs_rq::avg_load to cfs_rq::sum_weight
   - Rename cfs_rq::avg_vruntime to ::sum_w_vruntime & helper functions
   - Introduce and use the vruntime_cmp() and vruntime_op() wrappers for
     wrapped-signed aritmetics
   - Sort out 'blocked_load*' namespace noise

  Scheduler debugging code updates:

   - Export hidden tracepoints to modules (Gabriele Monaco)

   - Convert copy_from_user() + kstrtouint() to kstrtouint_from_user()
     (Fushuai Wang)

   - Add assertions to QUEUE_CLASS (Peter Zijlstra)

   - hrtimer: Fix tracing oddity (Thomas Gleixner)

  Misc fixes and cleanups:

   - Re-evaluate scheduling when migrating queued tasks out of throttled
     cgroups (Zicheng Qu)

   - Remove task_struct->faults_disabled_mapping (Christoph Hellwig)

   - Fix math notation errors in avg_vruntime comment (Zhan Xusheng)

   - sched/cpufreq: Use %pe format for PTR_ERR() printing
     (zenghongling)"

* tag 'sched-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
  sched: Re-evaluate scheduling when migrating queued tasks out of throttled cgroups
  sched/cpufreq: Use %pe format for PTR_ERR() printing
  sched/rt: Skip currently executing CPU in rto_next_cpu()
  sched/clock: Avoid false sharing for sched_clock_irqtime
  selftests/sched_ext: Add test for DL server total_bw consistency
  selftests/sched_ext: Add test for sched_ext dl_server
  sched/debug: Fix dl_server (re)start conditions
  sched/debug: Add support to change sched_ext server params
  sched_ext: Add a DL server for sched_ext tasks
  sched/debug: Stop and start server based on if it was active
  sched/debug: Fix updating of ppos on server write ops
  sched/deadline: Clear the defer params
  entry: Inline syscall_exit_work() and syscall_trace_enter()
  entry: Add arch_ptrace_report_syscall_entry/exit()
  entry: Rework syscall_exit_to_user_mode_work() for architecture reuse
  entry: Remove unused syscall argument from syscall_trace_enter()
  sched: remove task_struct->faults_disabled_mapping
  sched: Update rq->avg_idle when a task is moved to an idle CPU
  selftests/rseq: Add rseq slice histogram script
  hrtimer: Fix trace oddity
  ...
 2026-02-10 12:50:10 -08:00
Linus Torvalds
4d84667627 Performance events changes for v7.0: 
x86 PMU driver updates:
 
  - Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs.
    Compared to previous iterations of the Intel PMU code, there's
    been a lot of changes, which center around three main areas:
 
     - Introduce the OFF-MODULE RESPONSE (OMR) facility to
       replace the Off-Core Response (OCR) facility
 
     - New PEBS data source encoding layout
 
     - Support the new "RDPMC user disable" feature
 
    (Dapeng Mi)
 
  - Likewise, a large series adds uncore PMU support for
    Intel Diamond Rapids (DMR) CPUs, which center around these
    four main areas:
 
     - DMR may have two Integrated I/O and Memory Hub (IMH) dies,
       separate from the compute tile (CBB) dies.  Each CBB and
       each IMH die has its own discovery domain.
 
     - Unlike prior CPUs that retrieve the global discovery table
       portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
       discovery and MSR for CBB PMON discovery.
 
     - DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA,
       UBR, PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.
 
     - IIO free-running counters in DMR are MMIO-based, unlike SPR.
 
    (Zide Chen)
 
  - Also add support for Add missing PMON units for Intel Panther Lake,
    and support Nova Lake (NVL), which largely maps to Panther Lake.
    (Zide Chen)
 
  - KVM integration: Add support for mediated vPMUs (by Kan Liang
    and Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
    Sandipan Das and Mingwei Zhang)
 
  - Add Intel cstate driver to support for Wildcat Lake (WCL)
    CPUs, which are a low-power variant of Panther Lake.
    (Zide Chen)
 
  - Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
    (aka MaxLinear Lightning Mountain), which maps to the existing
    Airmont code. (Martin Schiller)
 
 Performance enhancements:
 
  - core: Speed up kexec shutdown by avoiding unnecessary
    cross CPU calls. (Jan H. Schönherr)
 
  - core: Fix slow perf_event_task_exit() with LBR callstacks
    (Namhyung Kim)
 
 User-space stack unwinding support:
 
  - Various cleanups and refactorings in preparation to generalize
    the unwinding code for other architectures. (Jens Remus)
 
 Uprobes updates:
 
  - Transition from kmap_atomic to kmap_local_page (Keke Ming)
 
  - Fix incorrect lockdep condition in filter_chain() (Breno Leitao)
 
  - Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)
 
 Misc fixes and cleanups:
 
  - s390: Remove kvm_types.h from Kbuild (Randy Dunlap)
 
  - x86/intel/uncore: Convert comma to semicolon (Chen Ni)
 
  - x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)
 
  - x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance event updates from Ingo Molnar:
 "x86 PMU driver updates:

   - Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs
     (Dapeng Mi)

     Compared to previous iterations of the Intel PMU code, there's been
     a lot of changes, which center around three main areas:

      - Introduce the OFF-MODULE RESPONSE (OMR) facility to replace the
        Off-Core Response (OCR) facility

      - New PEBS data source encoding layout

      - Support the new "RDPMC user disable" feature

   - Likewise, a large series adds uncore PMU support for Intel Diamond
     Rapids (DMR) CPUs (Zide Chen)

     This centers around these four main areas:

      - DMR may have two Integrated I/O and Memory Hub (IMH) dies,
        separate from the compute tile (CBB) dies. Each CBB and each IMH
        die has its own discovery domain.

      - Unlike prior CPUs that retrieve the global discovery table
        portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
        discovery and MSR for CBB PMON discovery.

      - DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA, UBR,
        PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.

      - IIO free-running counters in DMR are MMIO-based, unlike SPR.

   - Also add support for Add missing PMON units for Intel Panther Lake,
     and support Nova Lake (NVL), which largely maps to Panther Lake.
     (Zide Chen)

   - KVM integration: Add support for mediated vPMUs (by Kan Liang and
     Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
     Sandipan Das and Mingwei Zhang)

   - Add Intel cstate driver to support for Wildcat Lake (WCL) CPUs,
     which are a low-power variant of Panther Lake (Zide Chen)

   - Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
     (aka MaxLinear Lightning Mountain), which maps to the existing
     Airmont code (Martin Schiller)

  Performance enhancements:

   - Speed up kexec shutdown by avoiding unnecessary cross CPU calls
     (Jan H. Schönherr)

   - Fix slow perf_event_task_exit() with LBR callstacks (Namhyung Kim)

  User-space stack unwinding support:

   - Various cleanups and refactorings in preparation to generalize the
     unwinding code for other architectures (Jens Remus)

  Uprobes updates:

   - Transition from kmap_atomic to kmap_local_page (Keke Ming)

   - Fix incorrect lockdep condition in filter_chain() (Breno Leitao)

   - Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)

  Misc fixes and cleanups:

   - s390: Remove kvm_types.h from Kbuild (Randy Dunlap)

   - x86/intel/uncore: Convert comma to semicolon (Chen Ni)

   - x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)

   - x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)"

* tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
  s390: remove kvm_types.h from Kbuild
  uprobes: Fix incorrect lockdep condition in filter_chain()
  x86/ibs: Fix typo in dc_l2tlb_miss comment
  x86/uprobes: Fix XOL allocation failure for 32-bit tasks
  perf/x86/intel/uncore: Convert comma to semicolon
  perf/x86/intel: Add support for rdpmc user disable feature
  perf/x86: Use macros to replace magic numbers in attr_rdpmc
  perf/x86/intel: Add core PMU support for Novalake
  perf/x86/intel: Add support for PEBS memory auxiliary info field in NVL
  perf/x86/intel: Add core PMU support for DMR
  perf/x86/intel: Add support for PEBS memory auxiliary info field in DMR
  perf/x86/intel: Support the 4 new OMR MSRs introduced in DMR and NVL
  perf/core: Fix slow perf_event_task_exit() with LBR callstacks
  perf/core: Speed up kexec shutdown by avoiding unnecessary cross CPU calls
  uprobes: use kmap_local_page() for temporary page mappings
  arm/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
  mips/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
  arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
  riscv/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
  perf/x86/intel/uncore: Add Nova Lake support
  ...
 2026-02-10 12:00:46 -08:00
Linus Torvalds
f17b474e36 bpf-next-7.0 
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Merge tag 'bpf-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Support associating BPF program with struct_ops (Amery Hung)

 - Switch BPF local storage to rqspinlock and remove recursion detection
   counters which were causing false positives (Amery Hung)

 - Fix live registers marking for indirect jumps (Anton Protopopov)

 - Introduce execution context detection BPF helpers (Changwoo Min)

 - Improve verifier precision for 32bit sign extension pattern
   (Cupertino Miranda)

 - Optimize BTF type lookup by sorting vmlinux BTF and doing binary
   search (Donglin Peng)

 - Allow states pruning for misc/invalid slots in iterator loops (Eduard
   Zingerman)

 - In preparation for ASAN support in BPF arenas teach libbpf to move
   global BPF variables to the end of the region and enable arena kfuncs
   while holding locks (Emil Tsalapatis)

 - Introduce support for implicit arguments in kfuncs and migrate a
   number of them to new API. This is a prerequisite for cgroup
   sub-schedulers in sched-ext (Ihor Solodrai)

 - Fix incorrect copied_seq calculation in sockmap (Jiayuan Chen)

 - Fix ORC stack unwind from kprobe_multi (Jiri Olsa)

 - Speed up fentry attach by using single ftrace direct ops in BPF
   trampolines (Jiri Olsa)

 - Require frozen map for calculating map hash (KP Singh)

 - Fix lock entry creation in TAS fallback in rqspinlock (Kumar
   Kartikeya Dwivedi)

 - Allow user space to select cpu in lookup/update operations on per-cpu
   array and hash maps (Leon Hwang)

 - Make kfuncs return trusted pointers by default (Matt Bobrowski)

 - Introduce "fsession" support where single BPF program is executed
   upon entry and exit from traced kernel function (Menglong Dong)

 - Allow bpf_timer and bpf_wq use in all programs types (Mykyta
   Yatsenko, Andrii Nakryiko, Kumar Kartikeya Dwivedi, Alexei
   Starovoitov)

 - Make KF_TRUSTED_ARGS the default for all kfuncs and clean up their
   definition across the tree (Puranjay Mohan)

 - Allow BPF arena calls from non-sleepable context (Puranjay Mohan)

 - Improve register id comparison logic in the verifier and extend
   linked registers with negative offsets (Puranjay Mohan)

 - In preparation for BPF-OOM introduce kfuncs to access memcg events
   (Roman Gushchin)

 - Use CFI compatible destructor kfunc type (Sami Tolvanen)

 - Add bitwise tracking for BPF_END in the verifier (Tianci Cao)

 - Add range tracking for BPF_DIV and BPF_MOD in the verifier (Yazhou
   Tang)

 - Make BPF selftests work with 64k page size (Yonghong Song)

* tag 'bpf-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (268 commits)
  selftests/bpf: Fix outdated test on storage->smap
  selftests/bpf: Choose another percpu variable in bpf for btf_dump test
  selftests/bpf: Remove test_task_storage_map_stress_lookup
  selftests/bpf: Update task_local_storage/task_storage_nodeadlock test
  selftests/bpf: Update task_local_storage/recursion test
  selftests/bpf: Update sk_storage_omem_uncharge test
  bpf: Switch to bpf_selem_unlink_nofail in bpf_local_storage_{map_free, destroy}
  bpf: Support lockless unlink when freeing map or local storage
  bpf: Prepare for bpf_selem_unlink_nofail()
  bpf: Remove unused percpu counter from bpf_local_storage_map_free
  bpf: Remove cgroup local storage percpu counter
  bpf: Remove task local storage percpu counter
  bpf: Change local_storage->lock and b->lock to rqspinlock
  bpf: Convert bpf_selem_unlink to failable
  bpf: Convert bpf_selem_link_map to failable
  bpf: Convert bpf_selem_unlink_map to failable
  bpf: Select bpf_local_storage_map_bucket based on bpf_local_storage
  selftests/xsk: fix number of Tx frags in invalid packet
  selftests/xsk: properly handle batch ending in the middle of a packet
  bpf: Prevent reentrance into call_rcu_tasks_trace()
  ...
 2026-02-10 11:26:21 -08:00
Linus Torvalds
85f24b0ace hardening updates for v7.0-rc1 
- Various missed __counted_by annotations (Thorsten Blum)
 
 - Various missed -Wflex-array-member-not-at-end fixes (Gustavo A. R. Silva)
 
 - Avoid leftover tempfiles for interrupted compile-time FORTIFY tests
   (Nicolas Schier)
 
 - Remove non-existant CONFIG_UBSAN_REPORT_FULL from docs (Stefan Wiehler)
 
 - fortify: Use C arithmetic not FIELD_xxx() in FORTIFY_REASON defines
   (David Laight)
 
 - Add __counted_by_ptr attribute, tests, and first user (Bill Wendling,
   Kees Cook)
 
 - Update MAINTAINERS file to make hardening section not include pstore
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Merge tag 'hardening-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:
 "Mostly small cleanups and various scattered annotations and flex array
  warning fixes that we reviewed by unlanded in other trees. Introduces
  new annotation for expanding counted_by to pointer members, now that
  compiler behavior between GCC and Clang has been normalized.

   - Various missed __counted_by annotations (Thorsten Blum)

   - Various missed -Wflex-array-member-not-at-end fixes (Gustavo A. R.
     Silva)

   - Avoid leftover tempfiles for interrupted compile-time FORTIFY tests
     (Nicolas Schier)

   - Remove non-existant CONFIG_UBSAN_REPORT_FULL from docs (Stefan
     Wiehler)

   - fortify: Use C arithmetic not FIELD_xxx() in FORTIFY_REASON defines
     (David Laight)

   - Add __counted_by_ptr attribute, tests, and first user (Bill
     Wendling, Kees Cook)

   - Update MAINTAINERS file to make hardening section not include
     pstore"

* tag 'hardening-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  MAINTAINERS: pstore: Remove L: entry
  nfp: tls: Avoid -Wflex-array-member-not-at-end warnings
  carl9170: Avoid -Wflex-array-member-not-at-end warning
  coredump: Use __counted_by_ptr for struct core_name::corename
  lkdtm/bugs: Add __counted_by_ptr() test PTR_BOUNDS
  compiler_types.h: Attributes: Add __counted_by_ptr macro
  fortify: Cleanup temp file also on non-successful exit
  fortify: Rename temporary file to match ignore pattern
  fortify: Use C arithmetic not FIELD_xxx() in FORTIFY_REASON defines
  ecryptfs: Annotate struct ecryptfs_message with __counted_by
  fs/xattr: Annotate struct simple_xattr with __counted_by
  crypto: af_alg - Annotate struct af_alg_iv with __counted_by
  Kconfig.ubsan: Remove CONFIG_UBSAN_REPORT_FULL from documentation
  drm/nouveau: fifo: Avoid -Wflex-array-member-not-at-end warning
 2026-02-10 08:54:13 -08:00
Linus Torvalds
45bf4bc87c arm64 updates for 7.0 
ACPI:
  - Add interrupt signalling support to the AGDI handler.
  - Add Catalin and myself to the arm64 ACPI MAINTAINERS entry.
 
 CPU features:
 - Drop Kconfig options for PAN and LSE (these are detected at runtime).
 - Add support for 64-byte single-copy atomic instructions (LS64/LS64V).
 - Reduce MTE overhead when executing in the kernel on Ampere CPUs.
 - Ensure POR_EL0 value exposed via ptrace is up-to-date.
 - Fix error handling on GCS allocation failure.
 
 CPU frequency:
 - Add CPU hotplug support to the FIE setup in the AMU driver.
 
 Entry code:
 - Minor optimisations and cleanups to the syscall entry path.
 - Preparatory rework for moving to the generic syscall entry code.
 
 Hardware errata:
 - Work around Spectre-BHB on TSV110 processors.
 - Work around broken CMO propagation on some systems with the SI-L1
   interconnect.
 
 Miscellaneous:
 - Disable branch profiling for arch/arm64/ to avoid issues with noinstr.
 - Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
   WARN_ON(), reduction of boolean expression).
 - Fix custom __READ_ONCE() implementation for LTO builds when operating
   on non-atomic types.
 
 Perf and PMUs:
 - Support for CMN-600AE.
 - Be stricter about supported hardware in the CMN driver.
 - Support for DSU-110 and DSU-120.
 - Support for the cycles event in the DSU driver (alongside the
   dedicated cycles counter).
 - Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver.
 - Use !bitmap_empty() as a faster alternative to bitmap_weight().
 - Fix SPE error handling when failing to resume profiling.
 
 Selftests:
 - Add support for the FORCE_TARGETS option to the arm64 kselftests.
 - Avoid nolibc-specific my_syscall() function.
 - Add basic test for the LS64 HWCAP.
 - Extend fp-pidbench to cover additional workload patterns.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "There's a little less than normal, probably due to LPC & Christmas/New
  Year meaning that a few series weren't quite ready or reviewed in
  time. It's still useful across the board, despite the only real
  feature being support for the LS64 feature enabling 64-byte atomic
  accesses to endpoints that support it.

  ACPI:
   - Add interrupt signalling support to the AGDI handler
   - Add Catalin and myself to the arm64 ACPI MAINTAINERS entry

  CPU features:
   - Drop Kconfig options for PAN and LSE (these are detected at runtime)
   - Add support for 64-byte single-copy atomic instructions (LS64/LS64V)
   - Reduce MTE overhead when executing in the kernel on Ampere CPUs
   - Ensure POR_EL0 value exposed via ptrace is up-to-date
   - Fix error handling on GCS allocation failure

  CPU frequency:
   - Add CPU hotplug support to the FIE setup in the AMU driver

  Entry code:
   - Minor optimisations and cleanups to the syscall entry path
   - Preparatory rework for moving to the generic syscall entry code

  Hardware errata:
   - Work around Spectre-BHB on TSV110 processors
   - Work around broken CMO propagation on some systems with the SI-L1
     interconnect

  Miscellaneous:
   - Disable branch profiling for arch/arm64/ to avoid issues with
     noinstr
   - Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
     WARN_ON(), reduction of boolean expression)
   - Fix custom __READ_ONCE() implementation for LTO builds when
     operating on non-atomic types

  Perf and PMUs:
   - Support for CMN-600AE
   - Be stricter about supported hardware in the CMN driver
   - Support for DSU-110 and DSU-120
   - Support for the cycles event in the DSU driver (alongside the
     dedicated cycles counter)
   - Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver
   - Use !bitmap_empty() as a faster alternative to bitmap_weight()
   - Fix SPE error handling when failing to resume profiling

  Selftests:
   - Add support for the FORCE_TARGETS option to the arm64 kselftests
   - Avoid nolibc-specific my_syscall() function
   - Add basic test for the LS64 HWCAP
   - Extend fp-pidbench to cover additional workload patterns"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (43 commits)
  perf/arm-cmn: Reject unsupported hardware configurations
  perf: arm_spe: Properly set hw.state on failures
  arm64/gcs: Fix error handling in arch_set_shadow_stack_status()
  arm64: Fix non-atomic __READ_ONCE() with CONFIG_LTO=y
  arm64: poe: fix stale POR_EL0 values for ptrace
  kselftest/arm64: Raise default number of loops in fp-pidbench
  kselftest/arm64: Add a no-SVE loop after SVE in fp-pidbench
  perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD
  arm64: mte: Set TCMA1 whenever MTE is present in the kernel
  arm64/ptrace: Return early for ptrace_report_syscall_entry() error
  arm64/ptrace: Split report_syscall()
  arm64: Remove unused _TIF_WORK_MASK
  kselftest/arm64: Add missing file in .gitignore
  arm64: errata: Workaround for SI L1 downstream coherency issue
  kselftest/arm64: Add HWCAP test for FEAT_LS64
  arm64: Add support for FEAT_{LS64, LS64_V}
  KVM: arm64: Enable FEAT_{LS64, LS64_V} in the supported guest
  arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1
  KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory
  KVM: arm64: Add documentation for KVM_EXIT_ARM_LDST64B
  ...
 2026-02-09 20:28:45 -08:00
Linus Torvalds
0c00ed308d for-7.0/block-20260206 
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Merge tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block updates from Jens Axboe:

 - Support for batch request processing for ublk, improving the
   efficiency of the kernel/ublk server communication. This can yield
   nice 7-12% performance improvements

 - Support for integrity data for ublk

 - Various other ublk improvements and additions, including a ton of
   selftests additions and updated

 - Move the handling of blk-crypto software fallback from below the
   block layer to above it. This reduces the complexity of dealing with
   bio splitting

 - Series fixing a number of potential deadlocks in blk-mq related to
   the queue usage counter and writeback throttling and rq-qos debugfs
   handling

 - Add an async_depth queue attribute, to resolve a performance
   regression that's been around for a qhilw related to the scheduler
   depth handling

 - Only use task_work for IOPOLL completions on NVMe, if it is necessary
   to do so. An earlier fix for an issue resulted in all these
   completions being punted to task_work, to guarantee that completions
   were only run for a given io_uring ring when it was local to that
   ring. With the new changes, we can detect if it's necessary to use
   task_work or not, and avoid it if possible.

 - rnbd fixes:
      - Fix refcount underflow in device unmap path
      - Handle PREFLUSH and NOUNMAP flags properly in protocol
      - Fix server-side bi_size for special IOs
      - Zero response buffer before use
      - Fix trace format for flags
      - Add .release to rnbd_dev_ktype

 - MD pull requests via Yu Kuai
      - Fix raid5_run() to return error when log_init() fails
      - Fix IO hang with degraded array with llbitmap
      - Fix percpu_ref not resurrected on suspend timeout in llbitmap
      - Fix GPF in write_page caused by resize race
      - Fix NULL pointer dereference in process_metadata_update
      - Fix hang when stopping arrays with metadata through dm-raid
      - Fix any_working flag handling in raid10_sync_request
      - Refactor sync/recovery code path, improve error handling for
        badblocks, and remove unused recovery_disabled field
      - Consolidate mddev boolean fields into mddev_flags
      - Use mempool to allocate stripe_request_ctx and make sure
        max_sectors is not less than io_opt in raid5
      - Fix return value of mddev_trylock
      - Fix memory leak in raid1_run()
      - Add Li Nan as mdraid reviewer

 - Move phys_vec definitions to the kernel types, mostly in preparation
   for some VFIO and RDMA changes

 - Improve the speed for secure erase for some devices

 - Various little rust updates

 - Various other minor fixes, improvements, and cleanups

* tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (162 commits)
  blk-mq: ABI/sysfs-block: fix docs build warnings
  selftests: ublk: organize test directories by test ID
  block: decouple secure erase size limit from discard size limit
  block: remove redundant kill_bdev() call in set_blocksize()
  blk-mq: add documentation for new queue attribute async_dpeth
  block, bfq: convert to use request_queue->async_depth
  mq-deadline: covert to use request_queue->async_depth
  kyber: covert to use request_queue->async_depth
  blk-mq: add a new queue sysfs attribute async_depth
  blk-mq: factor out a helper blk_mq_limit_depth()
  blk-mq-sched: unify elevators checking for async requests
  block: convert nr_requests to unsigned int
  block: don't use strcpy to copy blockdev name
  blk-mq-debugfs: warn about possible deadlock
  blk-mq-debugfs: add missing debugfs_mutex in blk_mq_debugfs_register_hctxs()
  blk-mq-debugfs: remove blk_mq_debugfs_unregister_rqos()
  blk-mq-debugfs: make blk_mq_debugfs_register_rqos() static
  blk-rq-qos: fix possible debugfs_mutex deadlock
  blk-mq-debugfs: factor out a helper to register debugfs for all rq_qos
  blk-wbt: fix possible deadlock to nest pcpu_alloc_mutex under q_usage_counter
  ...
 2026-02-09 17:57:21 -08:00
Linus Torvalds
591beb0e3a io_uring-bpf-restrictions.4-20260206 
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Merge tag 'io_uring-bpf-restrictions.4-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring bpf filters from Jens Axboe:
 "This adds support for both cBPF filters for io_uring, as well as task
  inherited restrictions and filters.

  seccomp and io_uring don't play along nicely, as most of the
  interesting data to filter on resides somewhat out-of-band, in the
  submission queue ring.

  As a result, things like containers and systemd that apply seccomp
  filters, can't filter io_uring operations.

  That leaves them with just one choice if filtering is critical -
  filter the actual io_uring_setup(2) system call to simply disallow
  io_uring. That's rather unfortunate, and has limited us because of it.

  io_uring already has some filtering support. It requires the ring to
  be setup in a disabled state, and then a filter set can be applied.
  This filter set is completely bi-modal - an opcode is either enabled
  or it's not. Once a filter set is registered, the ring can be enabled.
  This is very restrictive, and it's not useful at all to systemd or
  containers which really want both broader and more specific control.

  This first adds support for cBPF filters for opcodes, which enables
  tighter control over what exactly a specific opcode may do. As
  examples, specific support is added for IORING_OP_OPENAT/OPENAT2,
  allowing filtering on resolve flags. And another example is added for
  IORING_OP_SOCKET, allowing filtering on domain/type/protocol. These
  are both common use cases. cBPF was chosen rather than eBPF, because
  the latter is often restricted in containers as well.

  These filters are run post the init phase of the request, which allows
  filters to even dip into data that is being passed in struct in user
  memory, as the init side of requests make that data stable by bringing
  it into the kernel. This allows filtering without needing to copy this
  data twice, or have filters etc know about the exact layout of the
  user data. The filters get the already copied and sanitized data
  passed.

  On top of that support is added for per-task filters, meaning that any
  ring created with a task that has a per-task filter will get those
  filters applied when it's created. These filters are inherited across
  fork as well. Once a filter has been registered, any further added
  filters may only further restrict what operations are permitted.

  Filters cannot change the return value of an operation, they can only
  permit or deny it based on the contents"

* tag 'io_uring-bpf-restrictions.4-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: allow registration of per-task restrictions
  io_uring: add task fork hook
  io_uring/bpf_filter: add ref counts to struct io_bpf_filter
  io_uring/bpf_filter: cache lookup table in ctx->bpf_filters
  io_uring/bpf_filter: allow filtering on contents of struct open_how
  io_uring/net: allow filtering on IORING_OP_SOCKET data
  io_uring: add support for BPF filtering for opcode restrictions
 2026-02-09 17:31:17 -08:00
Linus Torvalds
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Merge tag 'for-7.0/io_uring-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring updates from Jens Axboe:

 - Clean up the IORING_SETUP_R_DISABLED and submitter task checking,
   mostly just in preparation for relaxing the locking for SINGLE_ISSUER
   in the future.

 - Improve IOPOLL by using a doubly linked list to manage completions.

   Previously it was singly listed, which meant that to complete request
   N in the chain 0..N-1 had to have completed first. With a doubly
   linked list we can complete whatever request completes in that order,
   rather than need to wait for a consecutive range to be available.
   This reduces latencies.

 - Improve the restriction setup and checking. Mostly in preparation for
   adding further features on top of that. Coming in a separate pull
   request.

 - Split out task_work and wait handling into separate files. These are
   mostly nicely abstracted already, but still remained in the
   io_uring.c file which is on the larger side.

 - Use GFP_KERNEL_ACCOUNT in a few more spots, where appropriate.

 - Ensure even the idle io-wq worker exits if a task no longer has any
   rings open.

 - Add support for a non-circular submission queue.

   By default, the SQ ring keeps moving around, even if only a few
   entries are used for each submission. This can be wasteful in terms
   of cachelines.

   If IORING_SETUP_SQ_REWIND is set for the ring when created, each
   submission will start at offset 0 instead of where we last left off
   doing submissions.

 - Various little cleanups

* tag 'for-7.0/io_uring-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (30 commits)
  io_uring/kbuf: fix memory leak if io_buffer_add_list fails
  io_uring: Add SPDX id lines to remaining source files
  io_uring: allow io-wq workers to exit when unused
  io_uring/io-wq: add exit-on-idle state
  io_uring/net: don't continue send bundle if poll was required for retry
  io_uring/rsrc: use GFP_KERNEL_ACCOUNT consistently
  io_uring/futex: use GFP_KERNEL_ACCOUNT for futex data allocation
  io_uring/io-wq: handle !sysctl_hung_task_timeout_secs
  io_uring: fix bad indentation for setup flags if statement
  io_uring/rsrc: take unsigned index in io_rsrc_node_lookup()
  io_uring: introduce non-circular SQ
  io_uring: split out CQ waiting code into wait.c
  io_uring: split out task work code into tw.c
  io_uring/io-wq: don't trigger hung task for syzbot craziness
  io_uring: add IO_URING_EXIT_WAIT_MAX definition
  io_uring/sync: validate passed in offset
  io_uring/eventfd: remove unused ctx->evfd_last_cq_tail member
  io_uring/timeout: annotate data race in io_flush_timeouts()
  io_uring/uring_cmd: explicitly disallow cancelations for IOPOLL
  io_uring: fix IOPOLL with passthrough I/O
  ...
 2026-02-09 17:22:00 -08:00