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83,111 commits

Author SHA1 Message Date
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
7563f7e0e9 power supply and reset changes for the 7.0 series
* power-supply core
   - sysfs: Constify pointer passed to dev_attr_psp
   - extend DT binding documentation for battery cells to allow
     describing voltage drop behaviour
  * power-supply drivers
   - multiple: Remove unused gpio include header
   - multiple: Fix potential IRQ use-after-free on driver unload
   - bd71828: Add support for ROHM BD72720
   - misc. small fixes
  * reset drivers
   - tdx-ec-poweroff: fix restart
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Merge tag 'for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "power-supply core:
   - sysfs: constify pointer passed to dev_attr_psp
   - extend DT binding documentation for battery cells to allow
     describing voltage drop behaviour

  power-supply drivers:
   - multiple: Remove unused gpio include header
   - multiple: Fix potential IRQ use-after-free on driver unload
   - bd71828: Add support for ROHM BD72720
   - misc small fixes

  reset drivers:
   - tdx-ec-poweroff: fix restart"

* tag 'for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (30 commits)
  power: supply: bd71828: Use dev_err_probe()
  dt-bindings: power: supply: google,goldfish-battery: Convert to DT schema
  power: supply: qcom_battmgr: Recognize "LiP" as lithium-polymer
  power: supply: wm97xx: Use devm_power_supply_register()
  power: supply: wm97xx: Use devm_kcalloc()
  power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler
  power: reset: tdx-ec-poweroff: fix restart
  docs: power: update documentation about removed function
  power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()
  MAINTAINERS: adjust file entry in ROHM BD71828 CHARGER
  power: supply: ab8500_chargalg: improve kernel-doc
  power: supply: sysfs: Constify pointer passed to dev_attr_psp()
  power: supply: bq27xxx: fix wrong errno when bus ops are unsupported
  power: reset: nvmem-reboot-mode: respect cell size for nvmem_cell_write
  power: supply: sbs-battery: Fix use-after-free in power_supply_changed()
  power: supply: rt9455: Fix use-after-free in power_supply_changed()
  power: supply: pm8916_lbc: Fix use-after-free in power_supply_changed()
  power: supply: pm8916_bms_vm: Fix use-after-free in power_supply_changed()
  power: supply: pf1550: Fix use-after-free in power_supply_changed()
  power: supply: goldfish: Fix use-after-free in power_supply_changed()
  ...
2026-02-12 18:24:37 -08:00
Linus Torvalds
2c75a8d92c ATA changes for 6.20
- Cleanup IRQ masking in the handling of completed report zones
    commands (Niklas).
 
  - Improve the handling of Thunderbolt attached devices to speed up
    device removal (Henry).
 
  - Several patches to generalize the existing max_sec quirks to
    facilitates quirking the maximum command size of buggy drives, many
    of which have recently showed up with the recent increase of the
    default max_sectors block limit (Niklas).
 
  - Cleanup the ahci-platform and sata dt-bindings schema (Rob,
    Manivannan).
 
  - Improve device node scan in the ahci-dwc driver (Krzysztof).
 
  - Remove clang W=1 warnings with the ahci-imx and ahci-xgene drivers
    (Krzysztof).
 
  - Fix a long standing potential command starvation situation with
    non-NCQ commands issued when NCQ commands are on-going (me).
 
  - Limit max_sectors to 8191 on the INTEL SSDSC2KG480G8 SSD (Niklas).
 
  - Remove Vesa Local Bus (VLB) support in the pata_legacy driver
    (Ethan).
 
  - Simple fixes in the pata_cypress (typo) and pata_ftide010 (timing)
    drivers (Ethan, Linus W.)
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Merge tag 'ata-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ATA updates from Damien Le Moal:

 - Cleanup IRQ masking in the handling of completed report zones
   commands (Niklas)

 - Improve the handling of Thunderbolt attached devices to speed up
   device removal (Henry)

 - Several patches to generalize the existing max_sec quirks to
   facilitates quirking the maximum command size of buggy drives, many
   of which have recently showed up with the recent increase of the
   default max_sectors block limit (Niklas)

 - Cleanup the ahci-platform and sata dt-bindings schema (Rob,
   Manivannan)

 - Improve device node scan in the ahci-dwc driver (Krzysztof)

 - Remove clang W=1 warnings with the ahci-imx and ahci-xgene drivers
   (Krzysztof)

 - Fix a long standing potential command starvation situation with
   non-NCQ commands issued when NCQ commands are on-going (me)

 - Limit max_sectors to 8191 on the INTEL SSDSC2KG480G8 SSD (Niklas)

 - Remove Vesa Local Bus (VLB) support in the pata_legacy driver (Ethan)

 - Simple fixes in the pata_cypress (typo) and pata_ftide010 (timing)
   drivers (Ethan, Linus W)

* tag 'ata-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  ata: pata_ftide010: Fix some DMA timings
  ata: pata_cypress: fix typo in error message
  ata: pata_legacy: remove VLB support
  ata: libata-core: Quirk INTEL SSDSC2KG480G8 max_sectors
  dt-bindings: ata: sata: Document the graph port
  ata: libata-scsi: avoid Non-NCQ command starvation
  ata: libata-scsi: refactor ata_scsi_translate()
  ata: ahci-xgene: Fix Wvoid-pointer-to-enum-cast warning
  ata: ahci-imx: Fix Wvoid-pointer-to-enum-cast warning
  ata: ahci-dwc: Simplify with scoped for each OF child loop
  dt-bindings: ata: ahci-platform: Drop unnecessary select schema
  ata: libata: Allow more quirks
  ata: libata: Add libata.force parameter max_sec
  ata: libata: Add support to parse equal sign in libata.force
  ata: libata: Change libata.force to use the generic ATA_QUIRK_MAX_SEC quirk
  ata: libata: Add ata_force_get_fe_for_dev() helper
  ata: libata: Add ATA_QUIRK_MAX_SEC and convert all device quirks
  ata: libata: avoid long timeouts on hot-unplugged SATA DAS
  ata: libata-scsi: Remove superfluous local_irq_save()
2026-02-12 17:12:43 -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
582a1ef360 RTLA patches for v7.0
- Remove unused function declarations
 
   Some functions were removed in recent code consolidation 6.18, but
   their prototypes were not removed from headers. Remove them.
 
 - Set stop threshold after enabling instances
 
   Prefer recording samples without stopping on them on the start of
   tracing to stopping on samples that are never recorded. This fixes
   flakiness of some RTLA tests and unifies behavior of sample collection
   between tracefs mode and BPF mode.
 
 - Consolidate usage help message implementation
 
   RTLA tools (osnoise-top, osnoise-hist, timerlat-top, timerlat-hist)
   each implement usage help individually. Move common logic between
   them into a new function to reduce code duplication.
 
 - Add BPF actions feature
 
   Add option --bpf-action to attach a BPF program (passed as filename of
   its ELF representation) to be executed via BPF tail call at latency
   threshold.
 
 - Consolidate command line option parsing
 
   Each RTLA tool implements the parsing of command line options
   individually. Now that we have a common structure for parameters,
   unify the parsing of those options common among all four tools into
   one function.
 
 - De-duplicate cgroup common code
 
   Two functions in utils.c, setting cgroup for comm and setting cgroup
   for pid, duplicate code for constructing the cgroup path. Extract it
   to a new helper function.
 
 - String and error handling fixes and cleanups
 
   There were several instances of unsafe string and error handling that
   could cause invalid memory access; fix them. Also, remove a few unused
   headers, update .gitignore, and deduplicate code.
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Merge tag 'trace-rtla-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull RTLA updates from Steven Rostedt:

 - Remove unused function declarations

   Some functions were removed in recent code consolidation 6.18, but
   their prototypes were not removed from headers. Remove them.

 - Set stop threshold after enabling instances

   Prefer recording samples without stopping on them on the start of
   tracing to stopping on samples that are never recorded. This fixes
   flakiness of some RTLA tests and unifies behavior of sample
   collection between tracefs mode and BPF mode.

 - Consolidate usage help message implementation

   RTLA tools (osnoise-top, osnoise-hist, timerlat-top, timerlat-hist)
   each implement usage help individually. Move common logic between
   them into a new function to reduce code duplication.

 - Add BPF actions feature

   Add option --bpf-action to attach a BPF program (passed as filename
   of its ELF representation) to be executed via BPF tail call at
   latency threshold.

 - Consolidate command line option parsing

   Each RTLA tool implements the parsing of command line options
   individually. Now that we have a common structure for parameters,
   unify the parsing of those options common among all four tools into
   one function.

 - De-duplicate cgroup common code

   Two functions in utils.c, setting cgroup for comm and setting cgroup
   for pid, duplicate code for constructing the cgroup path. Extract it
   to a new helper function.

 - String and error handling fixes and cleanups

   There were several instances of unsafe string and error handling that
   could cause invalid memory access; fix them. Also, remove a few
   unused headers, update .gitignore, and deduplicate code.

* tag 'trace-rtla-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (30 commits)
  rtla: Fix parse_cpu_set() bug introduced by strtoi()
  rtla: Fix parse_cpu_set() return value documentation
  rtla: Ensure null termination after read operations in utils.c
  rtla: Make stop_tracing variable volatile
  rtla: Add generated output files to gitignore
  rtla: Fix NULL pointer dereference in actions_parse
  rtla: Remove unused headers
  rtla: Remove redundant memset after calloc
  rtla: Use standard exit codes for result enum
  rtla: Replace atoi() with a robust strtoi()
  rtla: Introduce for_each_action() helper
  tools/rtla: Deduplicate cgroup path opening code
  tools/rtla: Consolidate -H/--house-keeping option parsing
  tools/rtla: Consolidate -P/--priority option parsing
  tools/rtla: Consolidate -e/--event option parsing
  tools/rtla: Consolidate -d/--duration option parsing
  tools/rtla: Consolidate -D/--debug option parsing
  tools/rtla: Consolidate -C/--cgroup option parsing
  tools/rtla: Consolidate -c/--cpus option parsing
  tools/rtla: Add common_parse_options()
  ...
2026-02-12 14:31:02 -08:00
Linus Torvalds
f75c03a761 runtime verifier changes for 7.0:
- Refactor da_monitor to minimise macros
 
   Complete refactor of da_monitor.h to reduce reliance on macros
   generating functions. Use generic static functions and uses the
   preprocessor only when strictly necessary (e.g. for tracepoint
   handlers).
 
   The change essentially relies on functions with generic names (e.g.
   da_handle) instead of monitor-specific as well adding the need to
   define constant (e.g. MONITOR_NAME, MONITOR_TYPE) before including the
   header rather than calling macros that would define functions.
   Also adapt monitors and documentation accordingly.
 
 - Cleanup DA code generation scripts
 
   Clean up functions in dot2c removing reimplementations of trivial
   library functions (__buff_to_string) and removing some other unused
   intermediate steps.
 
 - Annotate functions with types in the rvgen python scripts
 
 - Remove superfluous assignments and cleanup generated code
 
   The rvgen scripts generate a superfluous assignment to 0 for enum
   variables and don't add commas to the last elements, which is against
   the kernel coding standards. Change the generation process for a
   better compliance and slightly simpler logic.
 
 - Remove superfluous declarations from generated code
 
   The monitor container source files contained a declaration and a
   definition for the rv_monitor variable. The former is superfluous and
   was removed.
 
 - Fix reference to outdated documentation
 
   s/da_monitor_synthesis.rst/monitor_synthesis.rst in comment in
   da_monitor.h
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Merge tag 'trace-rv-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull runtime verifier updates from Steven Rostedt:

 - Refactor da_monitor to minimize macros

   Complete refactor of da_monitor.h to reduce reliance on macros
   generating functions. Use generic static functions and uses the
   preprocessor only when strictly necessary (e.g. for tracepoint
   handlers).

   The change essentially relies on functions with generic names (e.g.
   da_handle) instead of monitor-specific as well adding the need to
   define constant (e.g. MONITOR_NAME, MONITOR_TYPE) before including
   the header rather than calling macros that would define functions.
   Also adapt monitors and documentation accordingly.

 - Cleanup DA code generation scripts

   Clean up functions in dot2c removing reimplementations of trivial
   library functions (__buff_to_string) and removing some other unused
   intermediate steps.

 - Annotate functions with types in the rvgen python scripts

 - Remove superfluous assignments and cleanup generated code

   The rvgen scripts generate a superfluous assignment to 0 for enum
   variables and don't add commas to the last elements, which is against
   the kernel coding standards. Change the generation process for a
   better compliance and slightly simpler logic.

 - Remove superfluous declarations from generated code

   The monitor container source files contained a declaration and a
   definition for the rv_monitor variable. The former is superfluous and
   was removed.

 - Fix reference to outdated documentation

   s/da_monitor_synthesis.rst/monitor_synthesis.rst in comment in
   da_monitor.h

* tag 'trace-rv-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv: Fix documentation reference in da_monitor.h
  verification/rvgen: Remove unused variable declaration from containers
  verification/dot2c: Remove superfluous enum assignment and add last comma
  verification/dot2c: Remove __buff_to_string() and cleanup
  verification/rvgen: Annotate DA functions with types
  verification/rvgen: Adapt dot2k and templates after refactoring da_monitor.h
  Documentation/rv: Adapt documentation after da_monitor refactoring
  rv: Cleanup da_monitor after refactor
  rv: Refactor da_monitor to minimise macros
2026-02-12 14:08:49 -08:00
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
541c43310e \n
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Merge tag 'fs_for_v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull quota and isofs updates from Jan Kara:

 - a fix for quotactl livelock during filesystem freezing

 - a small improvement for isofs

 - a documentation fix for ext2

* tag 'fs_for_v6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  isofs: support full length file names (255 instead of 253)
  quota: fix livelock between quotactl and freeze_super
  doc : fix a broken link in ext2.rst
2026-02-12 10:57:57 -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
098b6e44cb Devicetree updates for v7.0:
DT core:
 - Sync dtc/libfdt with upstream v1.7.2-62-ga26ef6400bd8
 
 - Add a for_each_compatible_node_scoped() loop and convert users in
   cpufreq, dmaengine, clk, cdx, powerpc and Arm
 
 - Simplify of/platform.c with scoped loop helpers
 
 - Add fw_devlink tracking for "mmc-pwrseq"
 
 - Optimize fw_devlink callback code size for pinctrl-N properties
 
 - Replace strcmp_suffix() with strends()
 
 DT bindings:
 - Support building single binding targets
 
 - Convert google,goldfish-fb, cznic,turris-mox-rwtm, ti,prm-inst
 
 - Add bindings for Freescale AVIC, Realtek RTD1xxx system controllers,
   Microchip 25AA010A EEPROM, OnSemi FIN3385, IEI WT61P803 PUZZLE, Delta
   Electronics DPS-800-AB power supply, Infineon IR35221 Digital
   Multi-phase Controller, Infineon PXE1610 Digital Dual Output 6+1
   VR12.5 & VR13 CPU Controller, socionext,uniphier-smpctrl, and
   xlnx,zynqmp-firmware
 
 - Lots of trivial binding fixes to address warnings in DTS files. These
   are mostly for arm64 platforms which is getting closer to be warning
   free. Some public shaming has helped.
 
 - Fix I2C bus node names in examples
 
 - Drop obsolete brcm,vulcan-soc binding
 
 - Drop unreferenced binding headers
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Merge tag 'devicetree-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT core:

   - Sync dtc/libfdt with upstream v1.7.2-62-ga26ef6400bd8

   - Add a for_each_compatible_node_scoped() loop and convert users in
     cpufreq, dmaengine, clk, cdx, powerpc and Arm

   - Simplify of/platform.c with scoped loop helpers

   - Add fw_devlink tracking for "mmc-pwrseq"

   - Optimize fw_devlink callback code size for pinctrl-N properties

   - Replace strcmp_suffix() with strends()

  DT bindings:

   - Support building single binding targets

   - Convert google,goldfish-fb, cznic,turris-mox-rwtm, ti,prm-inst

   - Add bindings for Freescale AVIC, Realtek RTD1xxx system
     controllers, Microchip 25AA010A EEPROM, OnSemi FIN3385, IEI
     WT61P803 PUZZLE, Delta Electronics DPS-800-AB power supply,
     Infineon IR35221 Digital Multi-phase Controller, Infineon PXE1610
     Digital Dual Output 6+1 VR12.5 & VR13 CPU Controller,
     socionext,uniphier-smpctrl, and xlnx,zynqmp-firmware

   - Lots of trivial binding fixes to address warnings in DTS files.
     These are mostly for arm64 platforms which is getting closer to be
     warning free. Some public shaming has helped.

   - Fix I2C bus node names in examples

   - Drop obsolete brcm,vulcan-soc binding

   - Drop unreferenced binding headers"

* tag 'devicetree-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (60 commits)
  dt-bindings: interrupt-controller: Add compatiblie string fsl,imx(1|25|27|31|35)-avic
  dt-bindings: soc: imx: add fsl,aips and fsl,emi compatible strings
  dt-bindings: display: bridge: lt8912b: Drop reset gpio requirement
  dt-bindings: firmware: fsl,scu: Mark multi-channel MU layouts as deprecated
  cpufreq: s5pv210: Simplify with scoped for each OF child loop
  dmaengine: fsl_raid: Simplify with scoped for each OF child loop
  clk: imx: imx31: Simplify with scoped for each OF child loop
  clk: imx: imx27: Simplify with scoped for each OF child loop
  cdx: Use mutex guard to simplify error handling
  cdx: Simplify with scoped for each OF child loop
  powerpc/wii: Simplify with scoped for each OF child loop
  powerpc/fsp2: Simplify with scoped for each OF child loop
  ARM: exynos: Simplify with scoped for each OF child loop
  ARM: at91: Simplify with scoped for each OF child loop
  of: Add for_each_compatible_node_scoped() helper
  dt-bindings: Fix emails with spaces or missing brackets
  scripts/dtc: Update to upstream version v1.7.2-62-ga26ef6400bd8
  dt-bindings: crypto: inside-secure,safexcel: Mandate only ring IRQs
  dt-bindings: crypto: inside-secure,safexcel: Add SoC compatibles
  of: reserved_mem: Fix placement of __free() annotation
  ...
2026-02-11 18:27:08 -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
61e629596f - dm-verity: various optimizations and fixes related to forward error
correction
 
 - dm-verity: add a .dm-verity keyring
 
 - dm-integrity: fix bugs with growing a device in bitmap mode
 
 - dm-mpath: fix leaking fake timeout requests, a UAF bug caused by stale
   rq->bio and minor bugs in device creation
 
 - dm-core: fix a bug related to blkg association, avoid unnecessary
   blk-crypto work on invalid keys
 
 - dm-bufio: dm-bufio cleanup and optimization (reducing hash table
   lookups)
 
 - various other minor fixes and cleanups
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Merge tag 'for-7.0/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mikulas Patocka:

 - dm-verity:
     - various optimizations and fixes related to forward error correction
     - add a .dm-verity keyring

 - dm-integrity: fix bugs with growing a device in bitmap mode

 - dm-mpath:
     - fix leaking fake timeout requests
     - fix UAF bug caused by stale rq->bio
     - fix minor bugs in device creation

 - dm-core:
     - fix a bug related to blkg association
     - avoid unnecessary blk-crypto work on invalid keys

 - dm-bufio:
     - dm-bufio cleanup and optimization (reducing hash table lookups)

 - various other minor fixes and cleanups

* tag 'for-7.0/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (35 commits)
  dm mpath: make pg_init_delay_msecs settable
  Revert "dm: fix a race condition in retrieve_deps"
  dm mpath: Add missing dm_put_device when failing to get scsi dh name
  dm vdo encodings: clean up header and version functions
  dm: use bio_clone_blkg_association
  dm: fix excessive blk-crypto operations for invalid keys
  dm-verity: fix section mismatch error
  dm-unstripe: fix mapping bug when there are multiple targets in a table
  dm-integrity: fix recalculation in bitmap mode
  dm-bufio: avoid redundant buffer_tree lookups
  dm-bufio: merge cache_put() into cache_put_and_wake()
  selftests: add dm-verity keyring selftests
  dm-verity: add dm-verity keyring
  dm: clear cloned request bio pointer when last clone bio completes
  dm-verity: fix up various workqueue-related comments
  dm-verity: switch to bio_advance_iter_single()
  dm-verity: consolidate the BH and normal work structs
  dm: add WQ_PERCPU to alloc_workqueue users
  dm-integrity: fix a typo in the code for write/discard race
  dm: use READ_ONCE in dm_blk_report_zones
  ...
2026-02-11 17:04:21 -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
ff661eeee2 cgroup: Changes for v6.20
- cpuset changes:
 
   - Continue separating v1 and v2 implementations by moving more
     v1-specific logic into cpuset-v1.c.
 
   - Improve partition handling. Sibling partitions are no longer
     invalidated on cpuset.cpus conflict, cpuset.cpus changes no longer
     fail in v2, and effective_xcpus computation is made consistent.
 
   - Fix partition effective CPUs overlap that caused a warning on cpuset
     removal when sibling partitions shared CPUs.
 
 - Increase the maximum cgroup subsystem count from 16 to 32 to
   accommodate future subsystem additions.
 
 - Misc cleanups and selftest improvements including switching to
   css_is_online() helper, removing dead code and stale documentation
   references, using lockdep_assert_cpuset_lock_held() consistently,
   and adding polling helpers for asynchronously updated cgroup
   statistics.
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Merge tag 'cgroup-for-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - cpuset changes:

    - Continue separating v1 and v2 implementations by moving more
      v1-specific logic into cpuset-v1.c

    - Improve partition handling. Sibling partitions are no longer
      invalidated on cpuset.cpus conflict, cpuset.cpus changes no longer
      fail in v2, and effective_xcpus computation is made consistent

    - Fix partition effective CPUs overlap that caused a warning on
      cpuset removal when sibling partitions shared CPUs

 - Increase the maximum cgroup subsystem count from 16 to 32 to
   accommodate future subsystem additions

 - Misc cleanups and selftest improvements including switching to
   css_is_online() helper, removing dead code and stale documentation
   references, using lockdep_assert_cpuset_lock_held() consistently, and
   adding polling helpers for asynchronously updated cgroup statistics

* tag 'cgroup-for-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (21 commits)
  cpuset: fix overlap of partition effective CPUs
  cgroup: increase maximum subsystem count from 16 to 32
  cgroup: Remove stale cpu.rt.max reference from documentation
  cpuset: replace direct lockdep_assert_held() with lockdep_assert_cpuset_lock_held()
  cgroup/cpuset: Move the v1 empty cpus/mems check to cpuset1_validate_change()
  cgroup/cpuset: Don't invalidate sibling partitions on cpuset.cpus conflict
  cgroup/cpuset: Don't fail cpuset.cpus change in v2
  cgroup/cpuset: Consistently compute effective_xcpus in update_cpumasks_hier()
  cgroup/cpuset: Streamline rm_siblings_excl_cpus()
  cpuset: remove dead code in cpuset-v1.c
  cpuset: remove v1-specific code from generate_sched_domains
  cpuset: separate generate_sched_domains for v1 and v2
  cpuset: move update_domain_attr_tree to cpuset_v1.c
  cpuset: add cpuset1_init helper for v1 initialization
  cpuset: add cpuset1_online_css helper for v1-specific operations
  cpuset: add lockdep_assert_cpuset_lock_held helper
  cpuset: Remove unnecessary checks in rebuild_sched_domains_locked
  cgroup: switch to css_is_online() helper
  selftests: cgroup: Replace sleep with cg_read_key_long_poll() for waiting on nr_dying_descendants
  selftests: cgroup: make test_memcg_sock robust against delayed sock stats
  ...
2026-02-11 13:20:50 -08:00
Linus Torvalds
9bdc64892d workqueue: Changes for v6.20
- Rework the rescuer to process work items one-by-one instead of
   slurping all pending work items in a single pass. As there is only
   one rescuer per workqueue, a single long-blocking work item could
   cause high latency for all tasks queued behind it, even after memory
   pressure is relieved and regular kworkers become available to service
   them.
 
 - Add CONFIG_BOOTPARAM_WQ_STALL_PANIC build-time option and
   workqueue.panic_on_stall_time parameter for time-based stall panic,
   giving systems more control over workqueue stall handling.
 
 - Replace BUG_ON() with panic() in the stall panic path for clearer
   intent and more informative output.
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Merge tag 'wq-for-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - Rework the rescuer to process work items one-by-one instead of
   slurping all pending work items in a single pass.

   As there is only one rescuer per workqueue, a single long-blocking
   work item could cause high latency for all tasks queued behind it,
   even after memory pressure is relieved and regular kworkers become
   available to service them.

 - Add CONFIG_BOOTPARAM_WQ_STALL_PANIC build-time option and
   workqueue.panic_on_stall_time parameter for time-based stall panic,
   giving systems more control over workqueue stall handling.

 - Replace BUG_ON() with panic() in the stall panic path for clearer
   intent and more informative output.

* tag 'wq-for-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: replace BUG_ON with panic in panic_on_wq_watchdog
  workqueue: add time-based panic for stalls
  workqueue: add CONFIG_BOOTPARAM_WQ_STALL_PANIC option
  workqueue: Process extra works in rescuer on memory pressure
  workqueue: Process rescuer work items one-by-one using a cursor
  workqueue: Make send_mayday() take a PWQ argument directly
2026-02-11 13:13:32 -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
Linus Torvalds
a31980dba7 hid-for-linus-2026020901
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Merge tag 'hid-for-linus-2026020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Jiri Kosina:

 - global switch of HID drivers to use pm_*ptr instead of #ifdef
   CONFIG_PM* (Bastien Nocera)

 - support for new firmware handling in intel-ish-hid (Vishnu Sankar)

 - support for HID output reports in the Quicki2c in intel-thc (Even Xu)

 - solidify register configuration updates in intel-thc (Even Xu)

 - Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders)

 - fn lock and WMI fan control handling improvements in certain Asus
   models (ROG, ProArt P16) (Ionut Nechita, Connor Belli)

 - fix for potential NULL pointer dereference during warm reset in
   intel-ish-hid (Ryan Lin)

 - fix for potential NULL pointer derefence in probe error paths in
   hid-pl (Oliver Neukum)

 - various other small assorted fixes and new device ID additions /
   device-specific quirks

* tag 'hid-for-linus-2026020901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (41 commits)
  HID: sony: add dongle device IDs for CRKD Gibson SG
  HID: Intel-thc-hid: Intel-thc: Fix wrong register fields updating
  HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients
  HID: logitech-hidpp: Add support for Logitech K980
  HID: logitech-dj: Differentiate "invalid device index" error
  HID: sony: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: wacom: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: uclogic: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: hid-sensor-hub: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: picolcd_core: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: nintendo: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: logitech-dj: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: lenovo: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: asus: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: appletb-kbd: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: hid-alps: Use pm_ptr instead of #ifdef CONFIG_PM
  HID: multitouch: add eGalaxTouch EXC3188 support
  HID: elecom: Add support for ELECOM HUGE Plus M-HT1MRBK
  HID: sony: add support for bluetooth Rock Band 4 PS4 guitars
  HID: logitech-hidpp: Check maxfield in hidpp_get_report_length()
  ...
2026-02-11 11:28:10 -08:00
Linus Torvalds
532355a756 hwmon updates for v7.0
- New drivers
 
   * PMBus driver for HiTRON HAC300S power supply
 
   * PMBus Driver for Monolithic MP5926 Hot-Swap Controller
 
   * PMBus Driver for STEF48H28 hot-swap controller
 
 - Support for new chips in existing drivers
 
   * asus-ec-sensors: Support for Pro WS TRX50-SAGE WIFI A and
     ROG MAXIMUS X HERO
 
   * dell-smm: Support for Dell OptiPlex 7080
 
   * f71882fg: Support for F81968
 
   * gpd-fan: Support for Micro PC 2
 
   * nct6683: New customer ID for ASRock Z590 Taichi
 
   * nct6775: Support for ASUS Pro WS WRX90E-SAGE SE
 
   * sht3x: Support for SHT85
 
   * tmp108: Support for P3T1035 and P3T2030
 
 - Bug fixes
 
   * ibmpex: Revert "fix" for UAF which didn't fix a UAF but introduced a
     race condition resulting in a NULL pointer crash.
 
   * pmbus/mpq8785: Fix failure to instantiate driver if the chip is
     configured for VID mode
 
   * max16065: Use READ/WRITE_ONCE to avoid compiler optimization induced
     race
 
   * nct7363, emc2305: Resource leak fixes
 
 - Other notable changes
 
   * cros_ec: Support for temperature limit thresholds
 
   * coretemp: Add TjMax for Silvermont through Tremont Atoms
 
 Various other minor improvements.
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Merge tag 'hwmon-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New PMBus drivers:

   - HiTRON HAC300S power supply

   - Monolithic MP5926 Hot-Swap Controller

   - STEF48H28 hot-swap controller

  Support for new chips in existing drivers

   - Support for Pro WS TRX50-SAGE WIFI A and ROG MAXIMUS X HERO
     (asus-ec-sensors)

   - Support for Dell OptiPlex 7080 (dell-smm)

   - Support for F81968 (f71882fg)

   - Support for Micro PC 2 (gpd-fan)

   - New customer ID for ASRock Z590 Taichi (nct6683)

   - Support for ASUS Pro WS WRX90E-SAGE SE (nct6775)

   - Support for SHT85 (sht3x)

   - Support for P3T1035 and P3T2030 (tmp108)

  Bug fixes:

   - Revert "fix" for UAF which didn't fix a UAF but introduced a race
     condition resulting in a NULL pointer crash (ibmpex)

   - Fix failure to instantiate driver if the chip is configured for VID
     mode (pmbus/mpq8785)

   - Use READ/WRITE_ONCE to avoid compiler optimization induced race
     (max16065)

   - Resource leak fixes (nct7363, emc2305)

  Other notable changes:

   - Support for temperature limit thresholds (cros_ec)

   - Add TjMax for Silvermont through Tremont Atoms (coretemp)

  Various other minor improvements"

* tag 'hwmon-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (42 commits)
  hwmon: (pmbus/mpq8785) fix VOUT_MODE mismatch during identification
  Revert "hwmon: (ibmpex) fix use-after-free in high/low store"
  hwmon: (max16065) Use READ/WRITE_ONCE to avoid compiler optimization induced race
  hwmon: (nct6775) use sysfs_emit instead of sprintf
  hwmon: pmbus: fix table in STEF48H28 documentation
  hwmon: Add support for HiTRON HAC300S PSU
  dt-bindings: trivial-devices: Add hitron,hac300s
  hwmon: (cros_ec) Add support for temperature thresholds
  hwmon: (cros_ec) Move temperature channel params to a macro
  hwmon: (cros_ec) Add support for fan target speed
  hwmon: (cros_ec) Split up supported features in the documentation
  hwmon: (tmp108) Add P3T1035 and P3T2030 support
  hwmon: (tmp108) Add support for P3T1035 and P3T2030
  dt-bindings: hwmon: ti,tmp108: Add P3T1035,P3T2030
  hwmon: pmbus: add support for STEF48H28
  dt-bindings: hwmon: add STEF48H28
  hwmon: (nct7363) Fix a resource leak in nct7363_present_pwm_fanin
  hwmon: (emc2305) Fix a resource leak in emc2305_of_parse_pwm_child
  hwmon: (gpd-fan) add support for Micro PC 2
  hwmon: (coretemp) Add TjMax for Silvermont through Tremont Atoms
  ...
2026-02-11 11:00:19 -08:00
Linus Torvalds
d701782152 gpio updates for v7.0-rc1
GPIOLIB core:
 - shrink the GPIO bus driver stub code
 - rework software node support for "undefined" software nodes
 - provide and use devm_fwnode_gpiod_get_optional()
 - only compile the OF quirk for MT2701 when needed
 
 New drivers:
 - add the GPIO driver for ROHM bd72720
 - add the gpio-line-mux driver providing 1-to-many mapping for a single
   real GPIO
 
 Driver changes:
 - refactor gpio-pca9570: use lock guard, add missing headers, use devres
   consistently
 - add support for a new model (G7 Aspeed sgpiom) to the aspeed-sgpio driver
   along with some prerequisite refactoring
 - use device_get_match_data() where applicable and save some lines
 - add support for more models to gpio-cadence
 - add the compatible property to reset-gpio and use it in shared GPIO
   management
 - drop unnecessary use of irqd_get_trigger_type() in gpio-max77759
 - add support for a new variant to gpio-pca953x
 - extend build coverage with COMPILE_TEST for more drivers
 - constify configfs structures in gpio-sim and gpio-virtuser
 - add support for the K3 SoC to gpio-spacemit
 - implement the missing .get_direction() callback in gpio-max77620
 - add support for Tegra264 to gpio-tegra186
 - drop unneeded MODULE_ALIAS() from gpio-menz127
 
 DT bindings:
 - document support for the opencores GPIO controller in gpio-mmio
 - document new variants for gpio-pca953x
 
 Documentation:
 - extensively describe interrupt source detection for gpio-pca953x and
   add more models to the list of supported variants
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Merge tag 'gpio-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "There are two new drivers and some changes to GPIO core but mostly
  just GPIO driver updates across a wide array of files, adding support
  for new models as well as various refactoring changes. Nothing
  controversial and everything has spent a good measure of time in
  linux-next.

  GPIOLIB core:
   - shrink the GPIO bus driver stub code
   - rework software node support for "undefined" software nodes
   - provide and use devm_fwnode_gpiod_get_optional()
   - only compile the OF quirk for MT2701 when needed

  New drivers:
   - add the GPIO driver for ROHM bd72720
   - add the gpio-line-mux driver providing 1-to-many mapping for a
     single real GPIO

  Driver changes:
   - refactor gpio-pca9570: use lock guard, add missing headers, use
     devres consistently
   - add support for a new model (G7 Aspeed sgpiom) to the aspeed-sgpio
     driver along with some prerequisite refactoring
   - use device_get_match_data() where applicable and save some lines
   - add support for more models to gpio-cadence
   - add the compatible property to reset-gpio and use it in shared GPIO
     management
   - drop unnecessary use of irqd_get_trigger_type() in gpio-max77759
   - add support for a new variant to gpio-pca953x
   - extend build coverage with COMPILE_TEST for more drivers
   - constify configfs structures in gpio-sim and gpio-virtuser
   - add support for the K3 SoC to gpio-spacemit
   - implement the missing .get_direction() callback in gpio-max77620
   - add support for Tegra264 to gpio-tegra186
   - drop unneeded MODULE_ALIAS() from gpio-menz127

  DT bindings:
   - document support for the opencores GPIO controller in gpio-mmio
   - document new variants for gpio-pca953x

  Documentation:
   - extensively describe interrupt source detection for gpio-pca953x
     and add more models to the list of supported variants"

* tag 'gpio-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (59 commits)
  gpio: tegra186: Add support for Tegra264
  dt-bindings: gpio: Add Tegra264 support
  gpio: spacemit-k1: Use PDR for pin direction, not SDR/CDR
  gpio: max77620: Implement .get_direction() callback
  gpio: aspeed-sgpio: Support G7 Aspeed sgpiom controller
  dt-bindings: gpio: aspeed,sgpio: Support ast2700
  gpio: aspeed-sgpio: Convert IRQ functions to use llops callbacks
  gpio: aspeed-sgpio: Create llops to handle hardware access
  gpio: aspeed-sgpio: Remove unused bank name field
  gpio: aspeed-sgpio: Change the macro to support deferred probe
  regulator: bd71815: switch to devm_fwnode_gpiod_get_optional
  gpiolib: introduce devm_fwnode_gpiod_get_optional() wrapper
  gpio: mmio: Add compatible for opencores GPIO
  dt-bindings: gpio-mmio: Correct opencores GPIO
  gpio: pca9570: use lock guards
  gpio: pca9570: Don't use "proxy" headers
  gpio: pca9570: Use devm_mutex_init() for mutex initialization
  MAINTAINERS: Add ROHM BD72720 PMIC
  power: supply: bd71828-power: Support ROHM BD72720
  power: supply: bd71828: Support wider register addresses
  ...
2026-02-11 10:53:39 -08:00
Linus Torvalds
893ace4df0 power sequencing updates for v7.0-rc1
New drivers:
 - add the power sequencing driver for PCIe M.2 connectors
 
 Driver improvements:
 - use device_get_match_data() where applicable
 - add support for the WCN39xx family of models to pwrseq-qcom-wcn
 
 Fixes:
 - fix a locking issue in pwrseq core
 - fix retval check in pwrseq-qcom-wcn
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Merge tag 'pwrseq-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull power sequencing updates from Bartosz Golaszewski:
 "One new driver and support for more models added to the existing
  qcom-wcn driver as well as some minor tweaks and fixes.

  New drivers:
   - add the power sequencing driver for PCIe M.2 connectors

  Driver improvements:
   - use device_get_match_data() where applicable
   - add support for the WCN39xx family of models to pwrseq-qcom-wcn

  Fixes:
   - fix a locking issue in pwrseq core
   - fix retval check in pwrseq-qcom-wcn"

* tag 'pwrseq-updates-for-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  power: sequencing: qcom-wcn: fix error path for VDDIO handling
  power: sequencing: fix missing state_lock in pwrseq_power_on() error path
  power: sequencing: Add the Power Sequencing driver for the PCIe M.2 connectors
  dt-bindings: connector: Add PCIe M.2 Mechanical Key M connector
  power: sequencing: qcom-wcn: add support for WCN39xx
  regulator: dt-bindings: qcom,wcn3990-pmu: describe PMUs on WCN39xx
  power: sequencing: qcom-wcn: use device_get_match_data()
2026-02-11 10:45:11 -08:00
Linus Torvalds
c371f62da7 pwm: Changes for v7.0-rc1
There are a few patches adapting to changes in Rust land which seems to
 be the norm since there is a pwm driver written in Rust. Other than that
 just a few cleanups and a single fix for the tiehrpwm driver that came
 in too late for making it into v6.19.
 
 Thanks to Andy Shevchenko, Bartosz Golaszewski, Daniel Almeida and
 Michal Wilczynski for reviews in this cycle, and to Alice Ryhl, Ben
 Zong-You Xie, Gokul Praveen, Kari Argillander, Markus Probst, Raag
 Jadav, Shankari Anand, Tamir Duberstein and Vladimir Zapolskiy for code
 contributions.
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Merge tag 'pwm/for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm updates from Uwe Kleine-König:
 "There are a few patches adapting to changes in Rust land which seems
  to be the norm since there is a pwm driver written in Rust. Other than
  that just a few cleanups and a single fix for the tiehrpwm driver that
  came in too late for making it into v6.19.

  Thanks to Andy Shevchenko, Bartosz Golaszewski, Daniel Almeida and
  Michal Wilczynski for reviews in this cycle, and to Alice Ryhl, Ben
  Zong-You Xie, Gokul Praveen, Kari Argillander, Markus Probst, Raag
  Jadav, Shankari Anand, Tamir Duberstein and Vladimir Zapolskiy for
  code contributions"

* tag 'pwm/for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  pwm: Remove redundant check in pwm_ops_check()
  pwm: tiehrpwm: Enable pwmchip's parent device before setting configuration
  pwm: Update MAINTAINER entry
  rust: pwm: Add __rust_helper to helpers
  rust: pwm: Simplify to_result call sites and unsafe blocks
  rust: pwm: Fix potential memory leak on init error
  dt-bindings: pwm: nxp,lpc32xx-pwm: Specify clocks property as mandatory
  pwm: th1520: Replace `kernel::c_str!` with C-Strings
  pwm: dwc: Use size macro
  pwm: Emit native configuration in /sys/kernel/debug/pwm
  rust: pwm: Add UnregisteredChip wrapper around Chip
  rust: pwm: Update ARef and AlwaysRefCounted imports to use sync::aref
2026-02-11 09:52:33 -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 Bonzini
bf2c3138ae Merge tag 'kvm-x86-pmu-6.20' of https://github.com/kvm-x86/linux into HEAD
KVM mediated PMU support for 6.20

Add support for mediated PMUs, where KVM gives the guest full ownership of PMU
hardware (contexted switched around the fastpath run loop) and allows direct
access to data MSRs and PMCs (restricted by the vPMU model), but intercepts
access to control registers, e.g. to enforce event filtering and to prevent the
guest from profiling sensitive host state.

To keep overall complexity reasonable, mediated PMU usage is all or nothing
for a given instance of KVM (controlled via module param).  The Mediated PMU
is disabled default, partly to maintain backwards compatilibity for existing
setup, partly because there are tradeoffs when running with a mediated PMU that
may be non-starters for some use cases, e.g. the host loses the ability to
profile guests with mediated PMUs, the fastpath run loop is also a blind spot,
entry/exit transitions are more expensive, etc.

Versus the emulated PMU, where KVM is "just another perf user", the mediated
PMU delivers more accurate profiling and monitoring (no risk of contention and
thus dropped events), with significantly less overhead (fewer exits and faster
emulation/programming of event selectors) E.g. when running Specint-2017 on
a single-socket Sapphire Rapids with 56 cores and no-SMT, and using perf from
within the guest:

  Perf command:
  a. basic-sampling: perf record -F 1000 -e 6-instructions  -a --overwrite
  b. multiplex-sampling: perf record -F 1000 -e 10-instructions -a --overwrite

  Guest performance overhead:
  ---------------------------------------------------------------------------
  | Test case          | emulated vPMU | all passthrough | passthrough with |
  |                    |               |                 | event filters    |
  ---------------------------------------------------------------------------
  | basic-sampling     |   33.62%      |    4.24%        |   6.21%          |
  ---------------------------------------------------------------------------
  | multiplex-sampling |   79.32%      |    7.34%        |   10.45%         |
  ---------------------------------------------------------------------------
2026-02-11 12:45:40 -05:00
Paolo Bonzini
9123c5f956 Merge tag 'kvm-x86-gmem-6.20' of https://github.com/kvm-x86/linux into HEAD
KVM guest_memfd changes for 6.20

 - Remove kvm_gmem_populate()'s preparation tracking and half-baked hugepage
   handling, and instead rely on SNP (the only user of the tracking) to do its
   own tracking 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 a non-existent usecase (and because
   in-place conversion 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.
2026-02-11 12:45:12 -05:00
Linus Torvalds
e86dda7bde spi: Updates for v7.0
The highlight here is that David Lechner has added support for multi-lane
 SPI devices.  Unlike the existing dual/quad SPI support this is for
 devices (typically ADCs/DACs) which support multiple independent data
 streams over multiple data lanes, instead of sending one data stream N
 times as fast they simultaneously transfer N different data streams.
 This is very similar to the case where multiple devices are grouped
 together but in this case it's a single device in a way that's visible
 to software.
 
 Otherwise there's been quite a bit of work on existing drivers, both
 cleanup and feature improvement, and a reasonable collection of new
 drivers.
 
  - Support for multi-lane SPI devices.
  - Preparatory work for some memory mapped flash improvements that will
    happen in the MTD subsystem.
  - Several conversions to fwnode APIs.
  - A bunch of cleanup and hardening work on the ST drivers.
  - Support for DMA mode on Renesas RZV2H and i.MX target mode.
  - Support for ATCSPI200, AXIADO AX300, NXP XPI and Renesas RZ/N1.
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Merge tag 'spi-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "The highlight here is that David Lechner has added support for
  multi-lane SPI devices. Unlike the existing dual/quad SPI support this
  is for devices (typically ADCs/DACs) which support multiple
  independent data streams over multiple data lanes, instead of sending
  one data stream N times as fast they simultaneously transfer N
  different data streams.

  This is very similar to the case where multiple devices are grouped
  together but in this case it's a single device in a way that's visible
  to software.

  Otherwise there's been quite a bit of work on existing drivers, both
  cleanup and feature improvement, and a reasonable collection of new
  drivers.

   - Support for multi-lane SPI devices

   - Preparatory work for some memory mapped flash improvements that
     will happen in the MTD subsystem

   - Several conversions to fwnode APIs

   - A bunch of cleanup and hardening work on the ST drivers

   - Support for DMA mode on Renesas RZV2H and i.MX target mode

   - Support for ATCSPI200, AXIADO AX300, NXP XPI and Renesas RZ/N1"

* tag 'spi-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (108 commits)
  spi: tools: Add include folder to .gitignore
  spi: cadence-qspi: Add support for the Renesas RZ/N1 controller
  spi: cadence-qspi: Kill cqspi_jh7110_clk_init
  spi: dt-bindings: cdns,qspi-nor: Add Renesas RZ/N1D400 to the list
  spi: geni-qcom: Add target abort support
  spi: geni-qcom: Drop unused msg parameter from timeout handlers
  spi: geni-qcom: Fix abort sequence execution for serial engine errors
  spi: geni-qcom: Improve target mode allocation by using proper allocation functions
  spi: xilinx: use device property accessors.
  dt-bindings: spi: Add binding for Faraday FTSSP010
  spi: axi-spi-engine: support SPI_MULTI_LANE_MODE_STRIPE
  spi: dt-bindings: adi,axi-spi-engine: add multi-lane support
  spi: Documentation: add page on multi-lane support
  spi: add multi_lane_mode field to struct spi_transfer
  spi: support controllers with multiple data lanes
  spi: dt-bindings: add spi-{tx,rx}-lane-map properties
  spi: dt-bindings: change spi-{rx,tx}-bus-width to arrays
  spi: dw: Remove not-going-to-be-supported code for Baikal SoC
  spi: cadence-qspi: Use a default value for cdns,fifo-width
  spi: cadence-qspi: Make sure write protection is disabled
  ...
2026-02-11 09:43:43 -08:00
Linus Torvalds
f6c42489fe regulator: Updates for v7.0
There's a bunch of new drivers here, plus a lot of hardening for the
 supply resolution code which allow us to support systems where we have
 two PMICs each of which has regulators supplied by the other.  This did
 work a long time ago but got broken as part of improved integration with
 the device model, it's fairly rare so nobody noticed.
 
  - Improvements for supply handling from André Draszik to allow systems
    with two PMICs with supply/consumer relationships in both
    directions to instantiate.
  - New drivers for Maxim MAX776750, Realtek RT8902, Samsung S2MPG11,
    Texas Instuments TPS65185.
 
 This have also pulls in some MFD updates which are build dependencies
 for the Samsung S2MPG11 support.
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Merge tag 'regulator-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "There's a bunch of new drivers here, plus a lot of hardening for the
  supply resolution code which allow us to support systems where we have
  two PMICs each of which has regulators supplied by the other. This did
  work a long time ago but got broken as part of improved integration
  with the device model, it's fairly rare so nobody noticed.

   - Improvements for supply handling from André Draszik to allow
     systems with two PMICs with supply/consumer relationships in both
     directions to instantiate.

   - New drivers for Maxim MAX776750, Realtek RT8902, Samsung S2MPG11,
     Texas Instuments TPS65185.

  This have also pulls in some MFD updates which are build dependencies
  for the Samsung S2MPG11 support"

* tag 'regulator-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (42 commits)
  regulator: s2mps11: more descriptive gpio consumer name
  regulator: s2mps11: add S2MPG11 regulator
  regulator: s2mps11: refactor S2MPG10 regulator macros for S2MPG11 reuse
  regulator: s2mps11: refactor S2MPG10 ::set_voltage_time() for S2MPG11 reuse
  regulator: s2mps11: add S2MPG10 regulator
  regulator: s2mps11: refactor handling of external rail control
  regulator: s2mps11: update node parsing (allow -supply properties)
  regulator: s2mps11: place constants on right side of comparison tests
  regulator: s2mps11: use dev_err_probe() where appropriate
  regulator: s2mps11: drop two needless variable initialisations
  regulator: add REGULATOR_LINEAR_VRANGE macro
  regulator: dt-bindings: add s2mpg11-pmic regulators
  regulator: dt-bindings: add s2mpg10-pmic regulators
  dt-bindings: firmware: google,gs101-acpm-ipc: convert regulators to lowercase
  mfd: sec: Add support for S2MPG11 PMIC via ACPM
  mfd: sec: s2mpg10: Reorder regulators for better probe performance
  dt-bindings: mfd: Add samsung,s2mpg11-pmic
  dt-bindings: mfd: samsung,s2mpg10-pmic: Link to its regulators
  dt-bindings: mfd: samsung,s2mps11: Split s2mpg10-pmic into separate file
  mfd: sec: Drop now unused struct sec_pmic_dev::irq_data
  ...
2026-02-11 09:40:12 -08:00
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
Daniel Golle
4ccc985135 dt-bindings: net: dsa: add MaxLinear MxL862xx
Add documentation and an example for MaxLinear MxL86282 and MxL86252
switches.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/22a6a3c8c15b932ff4b7d0cd8863939f06a0c2b4.1770433307.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-02-11 11:27:57 +01:00
Linus Torvalds
192c015940 powerpc updates for 7.0
- Implement masked user access
  - Add support for internal only per-CPU instructions and inline the bpf_get_smp_processor_id() and bpf_get_current_task()
  - Fix pSeries MSI-X allocation failure when quota is exceeded
  - Fix recursive pci_lock_rescan_remove locking in EEH event handling
  - Support tailcalls with subprogs & BPF exceptions on 64bit
  - Extend "trusted" keys to support the PowerVM Key Wrapping Module (PKWM)
 
 Thanks to: Abhishek Dubey, Christophe Leroy, Gaurav Batra, Guangshuo Li, Jarkko
 Sakkinen, Mahesh Salgaonkar, Mimi Zohar, Miquel Sabaté Solà, Nam Cao, Narayana
 Murty N, Nayna Jain, Nilay Shroff, Puranjay Mohan, Saket Kumar Bhaskar, Sourabh
 Jain, Srish Srinivasan, Venkat Rao Bagalkote,
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Merge tag 'powerpc-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates for 7.0

 - Implement masked user access

 - Add bpf support for internal only per-CPU instructions and inline the
   bpf_get_smp_processor_id() and bpf_get_current_task() functions

 - Fix pSeries MSI-X allocation failure when quota is exceeded

 - Fix recursive pci_lock_rescan_remove locking in EEH event handling

 - Support tailcalls with subprogs & BPF exceptions on 64bit

 - Extend "trusted" keys to support the PowerVM Key Wrapping Module
   (PKWM)

Thanks to Abhishek Dubey, Christophe Leroy, Gaurav Batra, Guangshuo Li,
Jarkko Sakkinen, Mahesh Salgaonkar, Mimi Zohar, Miquel Sabaté Solà, Nam
Cao, Narayana Murty N, Nayna Jain, Nilay Shroff, Puranjay Mohan, Saket
Kumar Bhaskar, Sourabh Jain, Srish Srinivasan, and Venkat Rao Bagalkote.

* tag 'powerpc-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (27 commits)
  powerpc/pseries: plpks: export plpks_wrapping_is_supported
  docs: trusted-encryped: add PKWM as a new trust source
  keys/trusted_keys: establish PKWM as a trusted source
  pseries/plpks: add HCALLs for PowerVM Key Wrapping Module
  pseries/plpks: expose PowerVM wrapping features via the sysfs
  powerpc/pseries: move the PLPKS config inside its own sysfs directory
  pseries/plpks: fix kernel-doc comment inconsistencies
  powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()
  powerpc: kgdb: Remove OUTBUFMAX constant
  powerpc64/bpf: Additional NVR handling for bpf_throw
  powerpc64/bpf: Support exceptions
  powerpc64/bpf: Add arch_bpf_stack_walk() for BPF JIT
  powerpc64/bpf: Avoid tailcall restore from trampoline
  powerpc64/bpf: Support tailcalls with subprogs
  powerpc64/bpf: Moving tail_call_cnt to bottom of frame
  powerpc/eeh: fix recursive pci_lock_rescan_remove locking in EEH event handling
  powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded
  powerpc/iommu: bypass DMA APIs for coherent allocations for pre-mapped memory
  powerpc64/bpf: Inline bpf_get_smp_processor_id() and bpf_get_current_task/_btf()
  powerpc64/bpf: Support internal-only MOV instruction to resolve per-CPU addrs
  ...
2026-02-10 21:46:12 -08:00
Linus Torvalds
6589b3d76d soc: devicetree updates for 7.0
There are a handful of new SoCs this time, all of these are
 more or less related to chips in a wider family:
 
  - SpacemiT Key Stone K3 is an 8-core risc-v chip, and the first
    widely available RVA23 implementation. Note that this is
    entirely unrelated with the similarly named Texas Instruments
    K3 chip family that follwed the TI Keystone2 SoC.
 
  - The Realtek Kent family of SoCs contains three chip models
    rtd1501s, rtd1861b and rtd1920s, and is related to their earlier
    Set-top-box and NAS products such as rtd1619, but is built
    on newer Arm Cortex-A78 cores.
 
  - The Qualcomm Milos family includes the Snapdragon 7s Gen 3
    (SM7635) mobile phone SoC built around Armv9 Kryo cores of the Arm
    Cortex-A720 generation. This one is used in the Fairphone Gen 6
 
  - Qualcomm Kaanapali is a new SoC based around eight high
    performance Oryon CPU cores
 
  - NXP i.MX8QP and i.MX952 are both feature reduced versions of
    chips we already support, i.e. the i.MX8QM and i.MX952, with
    fewer CPU cores and I/O interfaces.
 
 As part of a cleanup, a number of SoC specific devicetree files got
 removed because they did not have a single board using the .dtsi files
 and they were never compile tested as a result: Samsung s3c6400,
 ST spear320s, ST stm32mp21xc/stm32mp23xc/stm32mp25xc, Renesas
 r8a779m0/r8a779m2/r8a779m4/r8a779m6/r8a779m7/r8a779m8/r8a779mb/
 r9a07g044c1/r9a07g044l1/r9a07g054l1/r9a09g047e37, and TI am3703/am3715.
 All of these could be restored easily if a new board gets merged.
 
 Broadcom/Cavium/Marvell ThunderX2 gets removed along with its only
 machine, as all remaining users are assumed to be using ACPI
 based firmware.
 
 A relatively small number of 43 boards get added this time, and
 almost all of them for arm64. Aside from the reference boards for
 the newly added SoCs, this includes:
 
  - Three server boards use 32-bit ASpeed BMCs
 
  - One more reference board for 32-bit Microchip LAN9668
 
  - 64-bit Arm single-board computers based on Amlogic s905y4,
    CIX sky1, NXP ls1028a/imx8mn/imx8mp/imx91/imx93/imx95,
    Qualcomm qcs6490/qrb2210 and Rockchip rk3568/rk3588s
 
  - Carrier board for SOMs using Intel agilex5, Marvell Armada 7020,
    NXP iMX8QP, Mediatek mt8370/mt8390 and rockchip rk3588
 
  - Two mobile phones using Snapdragon 845
 
  - A gaming device and a NAS box, both based on Rockchips rk356x
 
 On top of the newly added boards and SoCs, there is a lot of
 background activity going into cleanups, in particular towards
 getting a warning-free dtc build, and the usual work on adding
 support for more hardware on the previously added machines.
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Merge tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC devicetree updates from Arnd Bergmann:
 "There are a handful of new SoCs this time, all of these are more or
  less related to chips in a wider family:

   - SpacemiT Key Stone K3 is an 8-core risc-v chip, and the first
     widely available RVA23 implementation. Note that this is entirely
     unrelated with the similarly named Texas Instruments K3 chip family
     that follwed the TI Keystone2 SoC.

   - The Realtek Kent family of SoCs contains three chip models
     rtd1501s, rtd1861b and rtd1920s, and is related to their earlier
     Set-top-box and NAS products such as rtd1619, but is built on newer
     Arm Cortex-A78 cores.

   - The Qualcomm Milos family includes the Snapdragon 7s Gen 3 (SM7635)
     mobile phone SoC built around Armv9 Kryo cores of the Arm
     Cortex-A720 generation. This one is used in the Fairphone Gen 6

   - Qualcomm Kaanapali is a new SoC based around eight high performance
     Oryon CPU cores

   - NXP i.MX8QP and i.MX952 are both feature reduced versions of chips
     we already support, i.e. the i.MX8QM and i.MX952, with fewer CPU
     cores and I/O interfaces.

  As part of a cleanup, a number of SoC specific devicetree files got
  removed because they did not have a single board using the .dtsi files
  and they were never compile tested as a result: Samsung s3c6400, ST
  spear320s, ST stm32mp21xc/stm32mp23xc/stm32mp25xc, Renesas
  r8a779m0/r8a779m2/r8a779m4/r8a779m6/r8a779m7/r8a779m8/r8a779mb/
  r9a07g044c1/r9a07g044l1/r9a07g054l1/r9a09g047e37, and TI
  am3703/am3715. All of these could be restored easily if a new board
  gets merged.

  Broadcom/Cavium/Marvell ThunderX2 gets removed along with its only
  machine, as all remaining users are assumed to be using ACPI based
  firmware.

  A relatively small number of 43 boards get added this time, and almost
  all of them for arm64. Aside from the reference boards for the newly
  added SoCs, this includes:

   - Three server boards use 32-bit ASpeed BMCs

   - One more reference board for 32-bit Microchip LAN9668

   - 64-bit Arm single-board computers based on Amlogic s905y4, CIX
     sky1, NXP ls1028a/imx8mn/imx8mp/imx91/imx93/imx95, Qualcomm
     qcs6490/qrb2210 and Rockchip rk3568/rk3588s

   - Carrier board for SOMs using Intel agilex5, Marvell Armada 7020,
     NXP iMX8QP, Mediatek mt8370/mt8390 and rockchip rk3588

   - Two mobile phones using Snapdragon 845

   - A gaming device and a NAS box, both based on Rockchips rk356x

  On top of the newly added boards and SoCs, there is a lot of
  background activity going into cleanups, in particular towards getting
  a warning-free dtc build, and the usual work on adding support for
  more hardware on the previously added machines"

* tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (757 commits)
  dt-bindings: intel: Add Agilex eMMC support
  arm64: dts: socfpga: agilex: add emmc support
  arm64: dts: intel: agilex5: Add simple-bus node on top of dma controller node
  ARM: dts: socfpga: fix dtbs_check warning for fpga-region
  ARM: dts: socfpga: add #address-cells and #size-cells for sram node
  dt-bindings: altera: document syscon as fallback for sys-mgr
  arm64: dts: altera: Use lowercase hex
  dt-bindings: arm: altera: combine Intel's SoCFPGA into altera.yaml
  arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet nodes
  arm64: dts: socfpga: agilex5: add support for modular board
  dt-bindings: intel: Add Agilex5 SoCFPGA modular board
  arm64: dts: socfpga: agilex5: Add dma-coherent property
  arm64: dts: realtek: Add Kent SoC and EVB device trees
  dt-bindings: arm: realtek: Add Kent Soc family compatibles
  ARM: dts: samsung: Drop s3c6400.dtsi
  ARM: dts: nuvoton: Minor whitespace cleanup
  MAINTAINERS: Add Falcon DB
  arm64: dts: a7k: add COM Express boards
  ARM: dts: microchip: Drop usb_a9g20-dab-mmx.dtsi
  arm64: dts: rockchip: Fix rk3588 PCIe range mappings
  ...
2026-02-10 21:11:08 -08:00
Linus Torvalds
bdbddf72a2 soc: driver updates for 7.0
There are are a number of to firmware drivers, in particular the TEE
 subsystem:
 
   - a bus callback for TEE firmware that device drivers can register to
   - sysfs support for tee firmware information
   - minor updates to platform specific TEE drivers for AMD, NXP, Qualcomm
     and the generic optee driver
   - ARM SCMI firmware refactoring to improve the protocol discover
     among other fixes and cleanups
   - ARM FF-A firmware interoperability improvements
 
 The reset controller and memory controller subsystems gain support for
 additional hardware platforms from Mediatek, Renesas, NXP, Canaan and
 SpacemiT.
 
 Most of the other changes are for random drivers/soc code. Among
 a number of cleanups and newly added hardware support, including:
 
  - Mediatek MT8196 DVFS power management and mailbox support
 
  - Qualcomm SCM firmware and MDT loader refactoring, as part of
    the new Glymur platform support.
 
  - NXP i.MX9 System Manager firmware support for accessing the
    syslog
 
  - Minor updates for TI, Renesas, Samsung, Apple, Marvell and AMD
    SoCs.
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Merge tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "There are are a number of to firmware drivers, in particular the TEE
  subsystem:

   - a bus callback for TEE firmware that device drivers can register to

   - sysfs support for tee firmware information

   - minor updates to platform specific TEE drivers for AMD, NXP,
     Qualcomm and the generic optee driver

   - ARM SCMI firmware refactoring to improve the protocol discover
     among other fixes and cleanups

   - ARM FF-A firmware interoperability improvements

  The reset controller and memory controller subsystems gain support for
  additional hardware platforms from Mediatek, Renesas, NXP, Canaan and
  SpacemiT.

  Most of the other changes are for random drivers/soc code. Among a
  number of cleanups and newly added hardware support, including:

   - Mediatek MT8196 DVFS power management and mailbox support

   - Qualcomm SCM firmware and MDT loader refactoring, as part of the
     new Glymur platform support.

   - NXP i.MX9 System Manager firmware support for accessing the syslog

   - Minor updates for TI, Renesas, Samsung, Apple, Marvell and AMD
     SoCs"

* tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (171 commits)
  bus: fsl-mc: fix an error handling in fsl_mc_device_add()
  reset: spacemit: Add SpacemiT K3 reset driver
  reset: spacemit: Extract common K1 reset code
  reset: Create subdirectory for SpacemiT drivers
  dt-bindings: soc: spacemit: Add K3 reset support and IDs
  reset: canaan: k230: drop OF dependency and enable by default
  reset: rzg2l-usbphy-ctrl: Add suspend/resume support
  reset: rzg2l-usbphy-ctrl: Propagate the return value of regmap_field_update_bits()
  reset: gpio: check the return value of gpiod_set_value_cansleep()
  reset: imx8mp-audiomix: Support i.MX8ULP SIM LPAV
  reset: imx8mp-audiomix: Extend the driver usage
  reset: imx8mp-audiomix: Switch to using regmap API
  reset: imx8mp-audiomix: Drop unneeded macros
  soc: fsl: qe: qe_ports_ic: Consolidate chained IRQ handler install/remove
  soc: mediatek: mtk-cmdq: Add mminfra_offset adjustment for DRAM addresses
  soc: mediatek: mtk-cmdq: Extend cmdq_pkt_write API for SoCs without subsys ID
  soc: mediatek: mtk-cmdq: Add pa_base parsing for hardware without subsys ID support
  soc: mediatek: mtk-cmdq: Add cmdq_get_mbox_priv() in cmdq_pkt_create()
  mailbox: mtk-cmdq: Add driver data to support for MT8196
  mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM transaction
  ...
2026-02-10 20:45:30 -08:00
Linus Torvalds
45a1b8cc6c * Inline x86-specific IPv6 checksum helper
* Update IOMMU docs to use stable identifiers
  * Print unhashed pointers on fatal stack overflows
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Merge tag 'x86_misc_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 updates from Dave Hansen:
 "The usual smattering of x86/misc changes.

  The IPv6 patch in here surprised me in a couple of ways. First, the
  function it inlines is able to eat a lot more CPU time than I would
  have expected. Second, the inlining does not seem to bloat the kernel,
  at least in the configs folks have tested.

   - Inline x86-specific IPv6 checksum helper

   - Update IOMMU docs to use stable identifiers

   - Print unhashed pointers on fatal stack overflows"

* tag 'x86_misc_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/traps: Print unhashed pointers on stack overflow
  Documentation/x86: Update IOMMU spec references to use stable identifiers
  x86/lib: Inline csum_ipv6_magic()
2026-02-10 19:52:18 -08:00
Frank Li
a16f91f807 dt-bindings: interrupt-controller: Add compatiblie string fsl,imx(1|25|27|31|35)-avic
Add compatiblie string fsl,imx(1|25|27|31|35)-avic for i.MX3 SoCs (over 15
years old).

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260210221215.1575844-1-Frank.Li@nxp.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2026-02-10 20:58:26 -06:00
Linus Torvalds
dcb4971018 - Extend the resctrl machinery to support telemetry monitoring on Intel. The
practical usage of this is being able to tell how much energy or how much
   work can be attributed to a group of tasks tracked under a single
   idenitifier. Prepend this work with proper refactoring of resctrl domains
   handling code. Work by Tony Luck
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Merge tag 'x86_cache_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 resource control updates from Borislav Petkov:

 - Extend the resctrl machinery to support telemetry monitoring on
   Intel (Tony Luck)

   The practical usage of this is being able to tell how much energy or
   how much work can be attributed to a group of tasks tracked under a
   single idenitifier. Prepend this work with proper refactoring of
   resctrl domains handling code.

* tag 'x86_cache_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
  x86,fs/resctrl: Update documentation for telemetry events
  x86/resctrl: Enable RDT_RESOURCE_PERF_PKG
  fs/resctrl: Move RMID initialization to first mount
  x86,fs/resctrl: Compute number of RMIDs as minimum across resources
  fs/resctrl: Move allocation/free of closid_num_dirty_rmid[]
  x86/resctrl: Handle number of RMIDs supported by RDT_RESOURCE_PERF_PKG
  x86/resctrl: Add energy/perf choices to rdt boot option
  x86,fs/resctrl: Handle domain creation/deletion for RDT_RESOURCE_PERF_PKG
  fs/resctrl: Refactor rmdir_mondata_subdir_allrdtgrp()
  fs/resctrl: Refactor mkdir_mondata_subdir()
  x86/resctrl: Read telemetry events
  x86/resctrl: Find and enable usable telemetry events
  x86,fs/resctrl: Add architectural event pointer
  x86,fs/resctrl: Fill in details of events for performance and energy GUIDs
  x86/resctrl: Discover hardware telemetry events
  fs/resctrl: Emphasize that L3 monitoring resource is required for summing domains
  x86,fs/resctrl: Add and initialize a resource for package scope monitoring
  x86,fs/resctrl: Add an architectural hook called for first mount
  x86,fs/resctrl: Support binary fixed point event counters
  x86,fs/resctrl: Handle events that can be read from any CPU
  ...
2026-02-10 18:24:56 -08:00
Linus Torvalds
75b2a60367 - Add EPERM to the possible PR_SET_SPECULATION_CTRL pr_ctl() error codes
to "legitimize" it
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Merge tag 'x86_bugs_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 bug documentation update from Borislav Petkov:

 - Add EPERM to the possible PR_SET_SPECULATION_CTRL pr_ctl() error
   codes to "legitimize" it

* tag 'x86_bugs_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation/x86: Fix PR_SET_SPECULATION_CTRL error codes
2026-02-10 18:23:47 -08:00
Linus Torvalds
dc855b7771 Updates for interrupt chip drivers:
- Add support for the Renesas RZ/V2N SoC
 
   - Add a new driver for the Renesas RZ/[TN]2H SoCs
 
   - Preserve the register state of the RISCV APLIC interrupt controller accross
     suspend/resume
 
   - Reinitialize the RISCV IMSIC registers after suspend/resume
 
   - Make the various Loongson interrupt chip drivers 32/64-bit aware
 
   - Handle the number of hardware interrupts in the SIFIVE PLIC driver
     correctly.
 
     The hardware interrupt 0 is reserved which resulted in inconsistent
     accounting. That went unnoticed as the off by one is only noticable when
     the number of device interrupts is a multiple of 32.
 
   - The usual device tree updates, cleanups and improvements all over the place.
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Merge tag 'irq-drivers-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq chip driver updates from Thomas Gleixner:

 - Add support for the Renesas RZ/V2N SoC

 - Add a new driver for the Renesas RZ/[TN]2H SoCs

 - Preserve the register state of the RISCV APLIC interrupt controller
   accross suspend/resume

 - Reinitialize the RISCV IMSIC registers after suspend/resume

 - Make the various Loongson interrupt chip drivers 32/64-bit aware

 - Handle the number of hardware interrupts in the SIFIVE PLIC driver
   correctly

   The hardware interrupt 0 is reserved which resulted in inconsistent
   accounting. That went unnoticed as the off by one is only noticable
   when the number of device interrupts is a multiple of 32

 - The usual device tree updates, cleanups and improvements all over the
   place

* tag 'irq-drivers-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  irqchip/gic-v5: Fix spelling mistake "ouside" -> "outside"
  dt-bindings: interrupt-controller: sifive,plic: Clarify the riscv,ndev meaning in PLIC
  irqchip/sifive-plic: Handle number of hardware interrupts correctly
  irqchip/aspeed-scu-ic: Remove unused variable mask
  irqchip/ti-sci-intr: Allow parsing interrupt-types per-line
  dt-bindings: interrupt-controller: ti,sci-intr: Per-line interrupt-types
  irqchip/renesas-rzv2h: Add suspend/resume support
  irqchip/aslint-sswi: Fix error check of of_io_request_and_map() result
  irqchip: Allow LoongArch irqchip drivers on both 32BIT/64BIT
  irqchip/loongson-pch-pic: Adjust irqchip driver for 32BIT/64BIT
  irqchip/loongson-pch-msi: Adjust irqchip driver for 32BIT/64BIT
  irqchip/loongson-htvec: Adjust irqchip driver for 32BIT/64BIT
  irqchip/loongson-eiointc: Adjust irqchip driver for 32BIT/64BIT
  irqchip/loongson-liointc: Adjust irqchip driver for 32BIT/64BIT
  irqchip/loongarch-avec: Adjust irqchip driver for 32BIT/64BIT
  irqchip/riscv-aplic: Preserve APLIC states across suspend/resume
  irqchip/riscv-imsic: Add a CPU pm notifier to restore the IMSIC on exit
  arm64: dts: renesas: r9a09g087: Add ICU support
  arm64: dts: renesas: r9a09g077: Add ICU support
  irqchip: Add RZ/{T2H,N2H} Interrupt Controller (ICU) driver
  ...
2026-02-10 14:01:40 -08:00
Linus Torvalds
5668a64622 x86/boot changes for v7.0:
- x86/acpi: Add acpi=spcr to use SPCR-provided default console
    (Shenghao Yang)
 
  - x86/acpi/boot: Correct the acpi_is_processor_usable() check again
    (Yazen Ghannam)
 
  - Refresh the x86 memory map (e820 table) handling code, and
    make the printouts a bit more informative. (Ingo Molnar)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-boot-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86/boot updates from Ingo Molnar:

 - x86/acpi: Add acpi=spcr to use SPCR-provided default console
   (Shenghao Yang)

 - x86/acpi/boot: Correct the acpi_is_processor_usable() check again
   (Yazen Ghannam)

 - Refresh the x86 memory map (e820 table) handling code, and make the
   printouts a bit more informative (Ingo Molnar)

* tag 'x86-boot-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
  x86/acpi: Add acpi=spcr to use SPCR-provided default console
  x86/boot/e820: Use <linux/sizes.h> symbols for literals
  x86/boot/e820: Make sure e820_search_gap() finds all gaps
  x86/boot/e820: Simplify the e820__range_remove() API
  x86/boot/e820: Remove e820__range_remove()'s unused return parameter
  x86/boot/e820: Simplify append_e820_table() and remove restriction on single-entry tables
  x86/boot/e820: Standardize __init/__initdata tag placement
  x86/boot/e820: Simplify & clarify __e820__range_add() a bit
  x86/boot/e820: Rename gap_start/gap_size to max_gap_start/max_gap_start in e820_search_gap() et al
  x86/boot/e820: Change e820_search_gap() to search for the highest-address PCI gap
  x86/boot/e820: Clean up e820__setup_pci_gap()/e820_search_gap() a bit
  x86/boot/e820: Change struct e820_table::nr_entries type from __u32 to u32
  x86/boot/e820: Standardize e820 table index variable types under 'u32'
  x86/boot/e820: Standardize e820 table index variable names under 'idx'
  x86/boot/e820: Remove unnecessary header inclusions
  x86/boot/e820: Clean up __refdata use a bit
  x86/boot/e820: Clean up __e820__range_add() a bit
  x86/boot/e820: Improve e820_print_type() messages
  x86/boot/e820: Clean up confusing and self-contradictory verbiage around E820 related resource allocations
  x86/boot/e820: Remove pointless early_panic() indirection
  ...
2026-02-10 13:12:54 -08:00
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
0923fd0419 Locking updates for v6.20:
Lock debugging:
 
  - Implement compiler-driven static analysis locking context
    checking, using the upcoming Clang 22 compiler's context
    analysis features. (Marco Elver)
 
    We removed Sparse context analysis support, because prior to
    removal even a defconfig kernel produced 1,700+ context
    tracking Sparse warnings, the overwhelming majority of which
    are false positives. On an allmodconfig kernel the number of
    false positive context tracking Sparse warnings grows to
    over 5,200... On the plus side of the balance actual locking
    bugs found by Sparse context analysis is also rather ... sparse:
    I found only 3 such commits in the last 3 years. So the
    rate of false positives and the maintenance overhead is
    rather high and there appears to be no active policy in
    place to achieve a zero-warnings baseline to move the
    annotations & fixers to developers who introduce new code.
 
    Clang context analysis is more complete and more aggressive
    in trying to find bugs, at least in principle. Plus it has
    a different model to enabling it: it's enabled subsystem by
    subsystem, which results in zero warnings on all relevant
    kernel builds (as far as our testing managed to cover it).
    Which allowed us to enable it by default, similar to other
    compiler warnings, with the expectation that there are no
    warnings going forward. This enforces a zero-warnings baseline
    on clang-22+ builds. (Which are still limited in distribution,
    admittedly.)
 
    Hopefully the Clang approach can lead to a more maintainable
    zero-warnings status quo and policy, with more and more
    subsystems and drivers enabling the feature. Context tracking
    can be enabled for all kernel code via WARN_CONTEXT_ANALYSIS_ALL=y
    (default disabled), but this will generate a lot of false positives.
 
    ( Having said that, Sparse support could still be added back,
      if anyone is interested - the removal patch is still
      relatively straightforward to revert at this stage. )
 
 Rust integration updates: (Alice Ryhl, Fujita Tomonori, Boqun Feng)
 
   - Add support for Atomic<i8/i16/bool> and replace most Rust native
     AtomicBool usages with Atomic<bool>
 
   - Clean up LockClassKey and improve its documentation
 
   - Add missing Send and Sync trait implementation for SetOnce
 
   - Make ARef Unpin as it is supposed to be
 
   - Add __rust_helper to a few Rust helpers as a preparation for
     helper LTO
 
   - Inline various lock related functions to avoid additional
     function calls.
 
 WW mutexes:
 
   - Extend ww_mutex tests and other test-ww_mutex updates (John Stultz)
 
 Misc fixes and cleanups:
 
   - rcu: Mark lockdep_assert_rcu_helper() __always_inline
     (Arnd Bergmann)
 
   - locking/local_lock: Include more missing headers (Peter Zijlstra)
 
   - seqlock: fix scoped_seqlock_read kernel-doc (Randy Dunlap)
 
   - rust: sync: Replace `kernel::c_str!` with C-Strings
     (Tamir Duberstein)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2026-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "Lock debugging:

   - Implement compiler-driven static analysis locking context checking,
     using the upcoming Clang 22 compiler's context analysis features
     (Marco Elver)

     We removed Sparse context analysis support, because prior to
     removal even a defconfig kernel produced 1,700+ context tracking
     Sparse warnings, the overwhelming majority of which are false
     positives. On an allmodconfig kernel the number of false positive
     context tracking Sparse warnings grows to over 5,200... On the plus
     side of the balance actual locking bugs found by Sparse context
     analysis is also rather ... sparse: I found only 3 such commits in
     the last 3 years. So the rate of false positives and the
     maintenance overhead is rather high and there appears to be no
     active policy in place to achieve a zero-warnings baseline to move
     the annotations & fixers to developers who introduce new code.

     Clang context analysis is more complete and more aggressive in
     trying to find bugs, at least in principle. Plus it has a different
     model to enabling it: it's enabled subsystem by subsystem, which
     results in zero warnings on all relevant kernel builds (as far as
     our testing managed to cover it). Which allowed us to enable it by
     default, similar to other compiler warnings, with the expectation
     that there are no warnings going forward. This enforces a
     zero-warnings baseline on clang-22+ builds (Which are still limited
     in distribution, admittedly)

     Hopefully the Clang approach can lead to a more maintainable
     zero-warnings status quo and policy, with more and more subsystems
     and drivers enabling the feature. Context tracking can be enabled
     for all kernel code via WARN_CONTEXT_ANALYSIS_ALL=y (default
     disabled), but this will generate a lot of false positives.

     ( Having said that, Sparse support could still be added back,
       if anyone is interested - the removal patch is still
       relatively straightforward to revert at this stage. )

  Rust integration updates: (Alice Ryhl, Fujita Tomonori, Boqun Feng)

    - Add support for Atomic<i8/i16/bool> and replace most Rust native
      AtomicBool usages with Atomic<bool>

    - Clean up LockClassKey and improve its documentation

    - Add missing Send and Sync trait implementation for SetOnce

    - Make ARef Unpin as it is supposed to be

    - Add __rust_helper to a few Rust helpers as a preparation for
      helper LTO

    - Inline various lock related functions to avoid additional function
      calls

  WW mutexes:

    - Extend ww_mutex tests and other test-ww_mutex updates (John
      Stultz)

  Misc fixes and cleanups:

    - rcu: Mark lockdep_assert_rcu_helper() __always_inline (Arnd
      Bergmann)

    - locking/local_lock: Include more missing headers (Peter Zijlstra)

    - seqlock: fix scoped_seqlock_read kernel-doc (Randy Dunlap)

    - rust: sync: Replace `kernel::c_str!` with C-Strings (Tamir
      Duberstein)"

* tag 'locking-core-2026-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (90 commits)
  locking/rwlock: Fix write_trylock_irqsave() with CONFIG_INLINE_WRITE_TRYLOCK
  rcu: Mark lockdep_assert_rcu_helper() __always_inline
  compiler-context-analysis: Remove __assume_ctx_lock from initializers
  tomoyo: Use scoped init guard
  crypto: Use scoped init guard
  kcov: Use scoped init guard
  compiler-context-analysis: Introduce scoped init guards
  cleanup: Make __DEFINE_LOCK_GUARD handle commas in initializers
  seqlock: fix scoped_seqlock_read kernel-doc
  tools: Update context analysis macros in compiler_types.h
  rust: sync: Replace `kernel::c_str!` with C-Strings
  rust: sync: Inline various lock related methods
  rust: helpers: Move #define __rust_helper out of atomic.c
  rust: wait: Add __rust_helper to helpers
  rust: time: Add __rust_helper to helpers
  rust: task: Add __rust_helper to helpers
  rust: sync: Add __rust_helper to helpers
  rust: refcount: Add __rust_helper to helpers
  rust: rcu: Add __rust_helper to helpers
  rust: processor: Add __rust_helper to helpers
  ...
2026-02-10 12:28:44 -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
a9aabb3b83 Rust changes for v6.20 / v7.0
Toolchain and infrastructure:
 
  - Add '__rust_helper' annotation to the C helpers.
 
    This is needed to inline these helpers into Rust code.
 
  - Remove imports available via the prelude, treewide.
 
    This was possible thanks to a new lint in Klint that Gary has
    implemented -- more Klint-related changes, including initial upstream
    support, are coming.
 
  - Deduplicate pin-init flags.
 
 'kernel' crate:
 
  - Add support for calling a function exactly once with the new
    'do_once_lite!' macro (and 'OnceLite' type).
 
    Based on this, add 'pr_*_once!' macros to print only once.
 
  - Add 'impl_flags!' macro for defining common bitflags operations:
 
        impl_flags!(
            /// Represents multiple permissions.
            #[derive(Debug, Clone, Default, Copy, PartialEq, Eq)]
            pub struct Permissions(u32);
 
            /// Represents a single permission.
            #[derive(Debug, Clone, Copy, PartialEq, Eq)]
            pub enum Permission {
                /// Read permission.
                Read = 1 << 0,
 
                /// Write permission.
                Write = 1 << 1,
 
                /// Execute permission.
                Execute = 1 << 2,
            }
        );
 
        let mut f: Permissions = Permission::Read | Permission::Write;
        assert!(f.contains(Permission::Read));
        assert!(!f.contains(Permission::Execute));
 
        f |= Permission::Execute;
        assert!(f.contains(Permission::Execute));
 
        let f2: Permissions = Permission::Write | Permission::Execute;
        assert!((f ^ f2).contains(Permission::Read));
        assert!(!(f ^ f2).contains(Permission::Write));
 
  - 'bug' module: support 'CONFIG_DEBUG_BUGVERBOSE_DETAILED' in the
    'warn_on!' macro in order to show the evaluated condition alongside
    the file path:
 
         ------------[ cut here ]------------
         WARNING: [val == 1] linux/samples/rust/rust_minimal.rs:27 at ...
         Modules linked in: rust_minimal(+)
 
  - Add safety module with 'unsafe_precondition_assert!' macro, currently
    a wrapper for 'debug_assert!', intended to mark the validation of
    safety preconditions where possible:
 
        /// # Safety
        ///
        /// The caller must ensure that `index` is less than `N`.
        unsafe fn set_unchecked(&mut self, index: usize, value: T) {
            unsafe_precondition_assert!(
                index < N,
                "set_unchecked() requires index ({index}) < N ({N})"
            );
 
            ...
        }
 
  - Add instructions to 'build_assert!' documentation requesting to
    always inline functions when used with function arguments.
 
  - 'ptr' module: replace 'build_assert!' with a 'const' one.
 
  - 'rbtree' module: reduce unsafe blocks on pointer derefs.
 
  - 'transmute' module: implement 'FromBytes' and 'AsBytes' for
    inhabited ZSTs, and use it in Nova.
 
  - More treewide replacements of 'c_str!' with C string literals.
 
 'macros' crate:
 
  - Rewrite most procedural macros ('module!', 'concat_idents!',
    '#[export]', '#[vtable]', '#[kunit_tests]') to use the 'syn' parsing
    library which we introduced last cycle, with better diagnostics.
 
    This also allows to support '#[cfg]' properly in the '#[vtable]'
    macro, to support arbitrary types in 'module!' macro (not just an
    identifier) and to remove several custom parsing helpers we had.
 
  - Use 'quote!' from the recently vendored 'quote' library and remove
    our custom one.
 
    The vendored one also allows us to avoid quoting '"' and '{}' inside
    the template anymore and editors can now highlight it. In addition,
    it improves robustness as it eliminates the need for string quoting
    and escaping.
 
  - Use 'pin_init::zeroed()' to simplify KUnit code.
 
 'pin-init' crate:
 
  - Rewrite all procedural macros ('[pin_]init!', '#[pin_data]',
    '#[pinned_drop]', 'derive([Maybe]Zeroable)') to use the 'syn' parsing
    library which we introduced last cycle, with better diagnostics.
 
  - Implement 'InPlaceWrite' for '&'static mut MaybeUninit<T>'. This
    enables users to use external allocation mechanisms such as
    'static_cell'.
 
  - Support tuple structs in 'derive([Maybe]Zeroable)'.
 
  - Support attributes on fields in '[pin_]init!' (such as
    '#[cfg(...)]').
 
  - Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
    override the default error (when no '? Error' is specified).
 
  - Support packed structs in '[pin_]init!' with
    '#[disable_initialized_field_access]'.
 
  - Remove 'try_[pin_]init!' in favor of merging their feature
    with '[pin_]init!'. Update the kernel's own 'try_[pin_]init!'
    macros to use the 'default_error' attribute.
 
  - Correct 'T: Sized' bounds to 'T: ?Sized' in the generated
    'PinnedDrop' check by '#[pin_data]'.
 
 Documentation:
 
  - Conclude the Rust experiment.
 
 MAINTAINERS:
 
  - Add "RUST [RUST-ANALYZER]" entry for the rust-analyzer support. Tamir
    and Jesung will take care of it. They have both been active around it
    for a while. The new tree will flow through the Rust one.
 
  - Add Gary as maintainer for "RUST [PIN-INIT]".
 
  - Update Boqun and Tamir emails to their kernel.org accounts.
 
 And a few other cleanups and improvements.
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Merge tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull rust updates from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Add '__rust_helper' annotation to the C helpers

     This is needed to inline these helpers into Rust code

   - Remove imports available via the prelude, treewide

     This was possible thanks to a new lint in Klint that Gary has
     implemented -- more Klint-related changes, including initial
     upstream support, are coming

   - Deduplicate pin-init flags

  'kernel' crate:

   - Add support for calling a function exactly once with the new
     'do_once_lite!' macro (and 'OnceLite' type)

     Based on this, add 'pr_*_once!' macros to print only once

   - Add 'impl_flags!' macro for defining common bitflags operations:

         impl_flags!(
             /// Represents multiple permissions.
             #[derive(Debug, Clone, Default, Copy, PartialEq, Eq)]
             pub struct Permissions(u32);

             /// Represents a single permission.
             #[derive(Debug, Clone, Copy, PartialEq, Eq)]
             pub enum Permission {
                 /// Read permission.
                 Read = 1 << 0,

                 /// Write permission.
                 Write = 1 << 1,

                 /// Execute permission.
                 Execute = 1 << 2,
             }
         );

         let mut f: Permissions = Permission::Read | Permission::Write;
         assert!(f.contains(Permission::Read));
         assert!(!f.contains(Permission::Execute));

         f |= Permission::Execute;
         assert!(f.contains(Permission::Execute));

         let f2: Permissions = Permission::Write | Permission::Execute;
         assert!((f ^ f2).contains(Permission::Read));
         assert!(!(f ^ f2).contains(Permission::Write));

   - 'bug' module: support 'CONFIG_DEBUG_BUGVERBOSE_DETAILED' in the
     'warn_on!' macro in order to show the evaluated condition alongside
     the file path:

          ------------[ cut here ]------------
          WARNING: [val == 1] linux/samples/rust/rust_minimal.rs:27 at ...
          Modules linked in: rust_minimal(+)

   - Add safety module with 'unsafe_precondition_assert!' macro,
     currently a wrapper for 'debug_assert!', intended to mark the
     validation of safety preconditions where possible:

         /// # Safety
         ///
         /// The caller must ensure that `index` is less than `N`.
         unsafe fn set_unchecked(&mut self, index: usize, value: T) {
             unsafe_precondition_assert!(
                 index < N,
                 "set_unchecked() requires index ({index}) < N ({N})"
             );

             ...
         }

   - Add instructions to 'build_assert!' documentation requesting to
     always inline functions when used with function arguments

   - 'ptr' module: replace 'build_assert!' with a 'const' one

   - 'rbtree' module: reduce unsafe blocks on pointer derefs

   - 'transmute' module: implement 'FromBytes' and 'AsBytes' for
     inhabited ZSTs, and use it in Nova

   - More treewide replacements of 'c_str!' with C string literals

  'macros' crate:

   - Rewrite most procedural macros ('module!', 'concat_idents!',
     '#[export]', '#[vtable]', '#[kunit_tests]') to use the 'syn'
     parsing library which we introduced last cycle, with better
     diagnostics

     This also allows to support '#[cfg]' properly in the '#[vtable]'
     macro, to support arbitrary types in 'module!' macro (not just an
     identifier) and to remove several custom parsing helpers we had

   - Use 'quote!' from the recently vendored 'quote' library and remove
     our custom one

     The vendored one also allows us to avoid quoting '"' and '{}'
     inside the template anymore and editors can now highlight it. In
     addition, it improves robustness as it eliminates the need for
     string quoting and escaping

   - Use 'pin_init::zeroed()' to simplify KUnit code

  'pin-init' crate:

   - Rewrite all procedural macros ('[pin_]init!', '#[pin_data]',
     '#[pinned_drop]', 'derive([Maybe]Zeroable)') to use the 'syn'
     parsing library which we introduced last cycle, with better
     diagnostics

   - Implement 'InPlaceWrite' for '&'static mut MaybeUninit<T>'. This
     enables users to use external allocation mechanisms such as
     'static_cell'

   - Support tuple structs in 'derive([Maybe]Zeroable)'

   - Support attributes on fields in '[pin_]init!' (such as
     '#[cfg(...)]')

   - Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
     override the default error (when no '? Error' is specified)

   - Support packed structs in '[pin_]init!' with
     '#[disable_initialized_field_access]'

   - Remove 'try_[pin_]init!' in favor of merging their feature with
     '[pin_]init!'. Update the kernel's own 'try_[pin_]init!' macros to
     use the 'default_error' attribute

   - Correct 'T: Sized' bounds to 'T: ?Sized' in the generated
     'PinnedDrop' check by '#[pin_data]'

  Documentation:

   - Conclude the Rust experiment

  MAINTAINERS:

   - Add "RUST [RUST-ANALYZER]" entry for the rust-analyzer support.
     Tamir and Jesung will take care of it. They have both been active
     around it for a while. The new tree will flow through the Rust one

   - Add Gary as maintainer for "RUST [PIN-INIT]"

   - Update Boqun and Tamir emails to their kernel.org accounts

  And a few other cleanups and improvements"

* tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (59 commits)
  rust: safety: introduce `unsafe_precondition_assert!` macro
  rust: add `impl_flags!` macro for defining common bitflag operations
  rust: print: Add pr_*_once macros
  rust: bug: Support DEBUG_BUGVERBOSE_DETAILED option
  rust: print: Add support for calling a function exactly once
  rust: kbuild: deduplicate pin-init flags
  gpu: nova-core: remove imports available via prelude
  rust: clk: replace `kernel::c_str!` with C-Strings
  MAINTAINERS: Update my email address to @kernel.org
  rust: macros: support `#[cfg]` properly in `#[vtable]` macro.
  rust: kunit: use `pin_init::zeroed` instead of custom null value
  rust: macros: rearrange `#[doc(hidden)]` in `module!` macro
  rust: macros: allow arbitrary types to be used in `module!` macro
  rust: macros: convert `#[kunit_tests]` macro to use `syn`
  rust: macros: convert `concat_idents!` to use `syn`
  rust: macros: convert `#[export]` to use `syn`
  rust: macros: use `quote!` for `module!` macro
  rust: macros: use `syn` to parse `module!` macro
  rust: macros: convert `#[vtable]` macro to use `syn`
  rust: macros: use `quote!` from vendored crate
  ...
2026-02-10 11:53:01 -08:00