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1,323,830 commits

Author SHA1 Message Date
Linus Torvalds
64dd3b6a79 ARM:
* New Stage-2 page table dumper, reusing the main ptdump infrastructure
 
 * FP8 support
 
 * Nested virtualization now supports the address translation (FEAT_ATS1A)
   family of instructions
 
 * Add selftest checks for a bunch of timer emulation corner cases
 
 * Fix multiple cases where KVM/arm64 doesn't correctly handle the guest
   trying to use a GICv3 that wasn't advertised
 
 * Remove REG_HIDDEN_USER from the sysreg infrastructure, making
   things little simpler
 
 * Prevent MTE tags being restored by userspace if we are actively
   logging writes, as that's a recipe for disaster
 
 * Correct the refcount on a page that is not considered for MTE tag
   copying (such as a device)
 
 * When walking a page table to split block mappings, synchronize only
   at the end the walk rather than on every store
 
 * Fix boundary check when transfering memory using FFA
 
 * Fix pKVM TLB invalidation, only affecting currently out of tree
   code but worth addressing for peace of mind
 
 LoongArch:
 
 * Revert qspinlock to test-and-set simple lock on VM.
 
 * Add Loongson Binary Translation extension support.
 
 * Add PMU support for guest.
 
 * Enable paravirt feature control from VMM.
 
 * Implement function kvm_para_has_feature().
 
 RISC-V:
 
 * Fix sbiret init before forwarding to userspace
 
 * Don't zero-out PMU snapshot area before freeing data
 
 * Allow legacy PMU access from guest
 
 * Fix to allow hpmcounter31 from the guest
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Merge tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "These are the non-x86 changes (mostly ARM, as is usually the case).
  The generic and x86 changes will come later"

  ARM:

   - New Stage-2 page table dumper, reusing the main ptdump
     infrastructure

   - FP8 support

   - Nested virtualization now supports the address translation
     (FEAT_ATS1A) family of instructions

   - Add selftest checks for a bunch of timer emulation corner cases

   - Fix multiple cases where KVM/arm64 doesn't correctly handle the
     guest trying to use a GICv3 that wasn't advertised

   - Remove REG_HIDDEN_USER from the sysreg infrastructure, making
     things little simpler

   - Prevent MTE tags being restored by userspace if we are actively
     logging writes, as that's a recipe for disaster

   - Correct the refcount on a page that is not considered for MTE tag
     copying (such as a device)

   - When walking a page table to split block mappings, synchronize only
     at the end the walk rather than on every store

   - Fix boundary check when transfering memory using FFA

   - Fix pKVM TLB invalidation, only affecting currently out of tree
     code but worth addressing for peace of mind

  LoongArch:

   - Revert qspinlock to test-and-set simple lock on VM.

   - Add Loongson Binary Translation extension support.

   - Add PMU support for guest.

   - Enable paravirt feature control from VMM.

   - Implement function kvm_para_has_feature().

  RISC-V:

   - Fix sbiret init before forwarding to userspace

   - Don't zero-out PMU snapshot area before freeing data

   - Allow legacy PMU access from guest

   - Fix to allow hpmcounter31 from the guest"

* tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (64 commits)
  LoongArch: KVM: Implement function kvm_para_has_feature()
  LoongArch: KVM: Enable paravirt feature control from VMM
  LoongArch: KVM: Add PMU support for guest
  KVM: arm64: Get rid of REG_HIDDEN_USER visibility qualifier
  KVM: arm64: Simplify visibility handling of AArch32 SPSR_*
  KVM: arm64: Simplify handling of CNTKCTL_EL12
  LoongArch: KVM: Add vm migration support for LBT registers
  LoongArch: KVM: Add Binary Translation extension support
  LoongArch: KVM: Add VM feature detection function
  LoongArch: Revert qspinlock to test-and-set simple lock on VM
  KVM: arm64: Register ptdump with debugfs on guest creation
  arm64: ptdump: Don't override the level when operating on the stage-2 tables
  arm64: ptdump: Use the ptdump description from a local context
  arm64: ptdump: Expose the attribute parsing functionality
  KVM: arm64: Add memory length checks and remove inline in do_ffa_mem_xfer
  KVM: arm64: Move pagetable definitions to common header
  KVM: arm64: nv: Add support for FEAT_ATS1A
  KVM: arm64: nv: Plumb handling of AT S1* traps from EL2
  KVM: arm64: nv: Make AT+PAN instructions aware of FEAT_PAN3
  KVM: arm64: nv: Sanitise SCTLR_EL1.EPAN according to VM configuration
  ...
2024-09-16 07:38:18 +02:00
Linus Torvalds
980bcd35ae ARC/sh/xtensa: Provide one-byte cmpxchg emulation
This series provides emulated one-byte cmpxchg() support for ARM, sh,
 and xtensa using the cmpxchg_emu_u8() function that uses a four-byte
 cmpxchg() to emulate the one-byte variant.  This covers all architectures.
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Merge tag 'cmpxchg.2024.09.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull byte cmpxchg updates from Paul McKenney:
 "ARC/sh/xtensa: Provide one-byte cmpxchg emulation

  This series provides emulated one-byte cmpxchg() support for ARM, sh,
  and xtensa using the cmpxchg_emu_u8() function that uses a four-byte
  cmpxchg() to emulate the one-byte variant.

  This covers all architectures"

* tag 'cmpxchg.2024.09.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  xtensa: Emulate one-byte cmpxchg
  sh: Emulate one-byte cmpxchg
  ARC: Emulate one-byte cmpxchg
2024-09-16 07:34:24 +02:00
Linus Torvalds
114143a595 arm64 updates for 6.12
ACPI:
 * Enable PMCG erratum workaround for HiSilicon HIP10 and 11 platforms.
 * Ensure arm64-specific IORT header is covered by MAINTAINERS.
 
 CPU Errata:
 * Enable workaround for hardware access/dirty issue on Ampere-1A cores.
 
 Memory management:
 * Define PHYSMEM_END to fix a crash in the amdgpu driver.
 * Avoid tripping over invalid kernel mappings on the kexec() path.
 * Userspace support for the Permission Overlay Extension (POE) using
   protection keys.
 
 Perf and PMUs:
 * Add support for the "fixed instruction counter" extension in the CPU
   PMU architecture.
 * Extend and fix the event encodings for Apple's M1 CPU PMU.
 * Allow LSM hooks to decide on SPE permissions for physical profiling.
 * Add support for the CMN S3 and NI-700 PMUs.
 
 Confidential Computing:
 * Add support for booting an arm64 kernel as a protected guest under
   Android's "Protected KVM" (pKVM) hypervisor.
 
 Selftests:
 * Fix vector length issues in the SVE/SME sigreturn tests
 * Fix build warning in the ptrace tests.
 
 Timers:
 * Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
   non-determinism arising from the architected counter.
 
 Miscellaneous:
 * Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
   don't succeed.
 * Minor fixes and cleanups.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "The highlights are support for Arm's "Permission Overlay Extension"
  using memory protection keys, support for running as a protected guest
  on Android as well as perf support for a bunch of new interconnect
  PMUs.

  Summary:

  ACPI:
   - Enable PMCG erratum workaround for HiSilicon HIP10 and 11
     platforms.
   - Ensure arm64-specific IORT header is covered by MAINTAINERS.

  CPU Errata:
   - Enable workaround for hardware access/dirty issue on Ampere-1A
     cores.

  Memory management:
   - Define PHYSMEM_END to fix a crash in the amdgpu driver.
   - Avoid tripping over invalid kernel mappings on the kexec() path.
   - Userspace support for the Permission Overlay Extension (POE) using
     protection keys.

  Perf and PMUs:
   - Add support for the "fixed instruction counter" extension in the
     CPU PMU architecture.
   - Extend and fix the event encodings for Apple's M1 CPU PMU.
   - Allow LSM hooks to decide on SPE permissions for physical
     profiling.
   - Add support for the CMN S3 and NI-700 PMUs.

  Confidential Computing:
   - Add support for booting an arm64 kernel as a protected guest under
     Android's "Protected KVM" (pKVM) hypervisor.

  Selftests:
   - Fix vector length issues in the SVE/SME sigreturn tests
   - Fix build warning in the ptrace tests.

  Timers:
   - Add support for PR_{G,S}ET_TSC so that 'rr' can deal with
     non-determinism arising from the architected counter.

  Miscellaneous:
   - Rework our IPI-based CPU stopping code to try NMIs if regular IPIs
     don't succeed.
   - Minor fixes and cleanups"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
  perf: arm-ni: Fix an NULL vs IS_ERR() bug
  arm64: hibernate: Fix warning for cast from restricted gfp_t
  arm64: esr: Define ESR_ELx_EC_* constants as UL
  arm64: pkeys: remove redundant WARN
  perf: arm_pmuv3: Use BR_RETIRED for HW branch event if enabled
  MAINTAINERS: List Arm interconnect PMUs as supported
  perf: Add driver for Arm NI-700 interconnect PMU
  dt-bindings/perf: Add Arm NI-700 PMU
  perf/arm-cmn: Improve format attr printing
  perf/arm-cmn: Clean up unnecessary NUMA_NO_NODE check
  arm64/mm: use lm_alias() with addresses passed to memblock_free()
  mm: arm64: document why pte is not advanced in contpte_ptep_set_access_flags()
  arm64: Expose the end of the linear map in PHYSMEM_END
  arm64: trans_pgd: mark PTEs entries as valid to avoid dead kexec()
  arm64/mm: Delete __init region from memblock.reserved
  perf/arm-cmn: Support CMN S3
  dt-bindings: perf: arm-cmn: Add CMN S3
  perf/arm-cmn: Refactor DTC PMU register access
  perf/arm-cmn: Make cycle counts less surprising
  perf/arm-cmn: Improve build-time assertion
  ...
2024-09-16 06:55:07 +02:00
Linus Torvalds
8617d7d629 - use devm_clk_get_enabled() helper
- prototype fixes
 - cleanup unused stuff
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Merge tag 'mips_6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - use devm_clk_get_enabled() helper

 - prototype fixes

 - cleanup unused stuff

* tag 'mips_6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: Remove posix_types.h include from sigcontext.h
  bus: bt1-apb: change to use devm_clk_get_enabled() helper
  bus: bt1-axi: change to use devm_clk_get_enabled() helper
  MIPS: dec: prom: Remove unused unregister_prom_console() declaration
  MIPS: Remove unused mips_display/_scroll_message() declarations
  MIPS: Remove unused declarations in asm/cmp.h
  MIPS: MT: Remove unused function mips_mt_regdump()
  mips/jazz: remove unused jazz_handle_int() declaration
  MIPS: Remove unused function dump_au1000_dma_channel() in dma.c
  MIPS: ralink: Fix missing `get_c0_perfcount_int` prototype
  MIPS: ralink: Fix missing `plat_time_init` prototype
2024-09-16 06:53:14 +02:00
Linus Torvalds
a4ebad655b Fix deadlock in SGX NUMA node search
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Merge tag 'x86_sgx_for_6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SGX updates from Dave Hansen:
 "These fix a deadlock in the SGX NUMA allocator.

  It's probably only triggerable today on servers with buggy BIOSes, but
  it's theoretically possible it can happen on less goofy systems"

* tag 'x86_sgx_for_6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Log information when a node lacks an EPC section
  x86/sgx: Fix deadlock in SGX NUMA node search
2024-09-16 06:51:10 +02:00
Linus Torvalds
963d0d60d6 - Add CONFIG_ option for every hw CPU mitigation. The intent is to support
configurations and scenarios where the mitigations code is irrelevant
 
 - Other small fixlets and improvements
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Merge tag 'x86_bugs_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 hw mitigation updates from Borislav Petkov:

 - Add CONFIG_ option for every hw CPU mitigation. The intent is to
   support configurations and scenarios where the mitigations code is
   irrelevant

 - Other small fixlets and improvements

* tag 'x86_bugs_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Fix handling when SRSO mitigation is disabled
  x86/bugs: Add missing NO_SSB flag
  Documentation/srso: Document a method for checking safe RET operates properly
  x86/bugs: Add a separate config for GDS
  x86/bugs: Remove GDS Force Kconfig option
  x86/bugs: Add a separate config for SSB
  x86/bugs: Add a separate config for Spectre V2
  x86/bugs: Add a separate config for SRBDS
  x86/bugs: Add a separate config for Spectre v1
  x86/bugs: Add a separate config for RETBLEED
  x86/bugs: Add a separate config for L1TF
  x86/bugs: Add a separate config for MMIO Stable Data
  x86/bugs: Add a separate config for TAA
  x86/bugs: Add a separate config for MDS
2024-09-16 06:48:38 +02:00
Linus Torvalds
d580d74ea2 - Add the final conversions to the new Intel VFM CPU model matching macros
which include the vendor and finally drop the old ones which hardcode family 6
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Merge tag 'x86_cpu_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpuid updates from Borislav Petkov:

 - Add the final conversions to the new Intel VFM CPU model matching
   macros which include the vendor and finally drop the old ones which
   hardcode family 6

* tag 'x86_cpu_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu/vfm: Delete all the *_FAM6_ CPU #defines
  x86/cpu/vfm: Delete X86_MATCH_INTEL_FAM6_MODEL[_STEPPING]() macros
  extcon: axp288: Switch to new Intel CPU model defines
  x86/cpu/intel: Replace PAT erratum model/family magic numbers with symbolic IFM references
2024-09-16 06:47:03 +02:00
Linus Torvalds
b56dff267d - A bunch of cleanups to the sev-guest driver. All in preparation for
future SEV work
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Merge tag 'x86_sev_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SEV updates from Borislav Petkov:

 - A bunch of cleanups to the sev-guest driver. All in preparation for
   future SEV work

* tag 'x86_sev_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  virt: sev-guest: Ensure the SNP guest messages do not exceed a page
  virt: sev-guest: Fix user-visible strings
  virt: sev-guest: Rename local guest message variables
  virt: sev-guest: Replace dev_dbg() with pr_debug()
2024-09-16 06:45:25 +02:00
Linus Torvalds
d0a63f0e1a - Reorganize the struct mce populating functions so that MCA errors
reported through BIOS' BERT method can report the correct CPU number
   the error has been detected on
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Merge tag 'ras_core_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RAS updates from Borislav Petkov:

 - Reorganize the struct mce populating functions so that MCA errors
   reported through BIOS' BERT method can report the correct CPU number
   the error has been detected on

* tag 'ras_core_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Use mce_prep_record() helpers for apei_smca_report_x86_error()
  x86/mce: Define mce_prep_record() helpers for common and per-CPU fields
  x86/mce: Rename mce_setup() to mce_prep_record()
2024-09-16 06:43:40 +02:00
Linus Torvalds
79f1a6adef - Simplify microcode patches loading on AMD Zen and newer by using the family,
model and stepping encoded in the patch revision number
 
 - Fix a silly clang warning
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Merge tag 'x86_microcode_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode loading updates from Borislav Petkov:

 - Simplify microcode patches loading on AMD Zen and newer by using the
   family, model and stepping encoded in the patch revision number

 - Fix a silly clang warning

* tag 'x86_microcode_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Fix a -Wsometimes-uninitialized clang false positive
  x86/microcode/AMD: Use the family,model,stepping encoded in the patch ID
2024-09-16 06:41:49 +02:00
Linus Torvalds
7dfc15c473 - Drop a now obsolete ppc4xx_edac driver
- Fix conversion to physical memory addresses on Intel's Elkhart Lake and Ice
   Lake hardware when the system address is above the (Top-Of-Memory) TOM
   address
 
 - Pay attention to the memory hole on Zynq UltraScale+ MPSoC DDR controllers
   when injecting errors for testing purposes
 
 - Add support for translating normalized error addresses reported by an AMD
   memory controller into system physical addresses using an UEFI mechanism
   called platform runtime mechanism (PRM).
 
 - The usual cleanups and fixes
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Merge tag 'edac_updates_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - Drop a now obsolete ppc4xx_edac driver

 - Fix conversion to physical memory addresses on Intel's Elkhart Lake
   and Ice Lake hardware when the system address is above the
   (Top-Of-Memory) TOM address

 - Pay attention to the memory hole on Zynq UltraScale+ MPSoC DDR
   controllers when injecting errors for testing purposes

 - Add support for translating normalized error addresses reported by an
   AMD memory controller into system physical addresses using an UEFI
   mechanism called platform runtime mechanism (PRM).

 - The usual cleanups and fixes

* tag 'edac_updates_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC: Drop obsolete PPC4xx driver
  EDAC/sb_edac: Fix the compile warning of large frame size
  EDAC/{skx_common,i10nm}: Remove the AMAP register for determing DDR5
  EDAC/{skx_common,skx,i10nm}: Move the common debug code to skx_common
  EDAC/igen6: Fix conversion of system address to physical memory address
  EDAC/synopsys: Fix error injection on Zynq UltraScale+
  RAS/AMD/ATL: Translate normalized to system physical addresses using PRM
  ACPI: PRM: Add PRM handler direct call support
2024-09-16 06:36:37 +02:00
Linus Torvalds
1636f57c78 ARM development updates for v6.12-rc1
- clean up TTBCR magic numbers and use u32 for this register
 - fix clang issue in VFP code leading to kernel oops, caused by
   compiler instruction scheduling.
 - switch 32-bit Arm to use GENERIC_CPU_DEVICES and use the
   arch_cpu_is_hotpluggable() hook.
 - pass struct device to arm_iommu_create_mapping() and move over
   to use iommu_paging_domain_alloc() rather than iommu_domain_alloc()
 - make amba_bustype constant
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM updates from Russell King:

 - clean up TTBCR magic numbers and use u32 for this register

 - fix clang issue in VFP code leading to kernel oops, caused by
   compiler instruction scheduling.

 - switch 32-bit Arm to use GENERIC_CPU_DEVICES and use the
   arch_cpu_is_hotpluggable() hook.

 - pass struct device to arm_iommu_create_mapping() and move over to use
   iommu_paging_domain_alloc() rather than iommu_domain_alloc()

 - make amba_bustype constant

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9418/1: dma-mapping: Use iommu_paging_domain_alloc()
  ARM: 9417/1: dma-mapping: Pass device to arm_iommu_create_mapping()
  ARM: 9416/1: amba: make amba_bustype constant
  ARM: 9412/1: Convert to arch_cpu_is_hotpluggable()
  ARM: 9411/1: Switch over to GENERIC_CPU_DEVICES using arch_register_cpu()
  ARM: 9410/1: vfp: Use asm volatile in fmrx/fmxr macros
  ARM: 9409/1: mmu: Do not use magic number for TTBCR settings
2024-09-16 06:32:08 +02:00
Linus Torvalds
85ffc6e4ed This update includes the following changes:
API:
 
 - Make self-test asynchronous.
 
 Algorithms:
 
 - Remove MPI functions added for SM3.
 - Add allocation error checks to remaining MPI functions (introduced for SM3).
 - Set default Jitter RNG OSR to 3.
 
 Drivers:
 
 - Add hwrng driver for Rockchip RK3568 SoC.
 - Allow disabling SR-IOV VFs through sysfs in qat.
 - Fix device reset bugs in hisilicon.
 - Fix authenc key parsing by using generic helper in octeontx*.
 
 Others:
 
 - Fix xor benchmarking on parisc.
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Merge tag 'v6.12-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto update from Herbert Xu"
 "API:
   - Make self-test asynchronous

  Algorithms:
   - Remove MPI functions added for SM3
   - Add allocation error checks to remaining MPI functions (introduced
     for SM3)
   - Set default Jitter RNG OSR to 3

  Drivers:
   - Add hwrng driver for Rockchip RK3568 SoC
   - Allow disabling SR-IOV VFs through sysfs in qat
   - Fix device reset bugs in hisilicon
   - Fix authenc key parsing by using generic helper in octeontx*

  Others:
   - Fix xor benchmarking on parisc"

* tag 'v6.12-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (96 commits)
  crypto: n2 - Set err to EINVAL if snprintf fails for hmac
  crypto: camm/qi - Use ERR_CAST() to return error-valued pointer
  crypto: mips/crc32 - Clean up useless assignment operations
  crypto: qcom-rng - rename *_of_data to *_match_data
  crypto: qcom-rng - fix support for ACPI-based systems
  dt-bindings: crypto: qcom,prng: document support for SA8255p
  crypto: aegis128 - Fix indentation issue in crypto_aegis128_process_crypt()
  crypto: octeontx* - Select CRYPTO_AUTHENC
  crypto: testmgr - Hide ENOENT errors
  crypto: qat - Remove trailing space after \n newline
  crypto: hisilicon/sec - Remove trailing space after \n newline
  crypto: algboss - Pass instance creation error up
  crypto: api - Fix generic algorithm self-test races
  crypto: hisilicon/qm - inject error before stopping queue
  crypto: hisilicon/hpre - mask cluster timeout error
  crypto: hisilicon/qm - reset device before enabling it
  crypto: hisilicon/trng - modifying the order of header files
  crypto: hisilicon - add a lock for the qp send operation
  crypto: hisilicon - fix missed error branch
  crypto: ccp - do not request interrupt on cmd completion when irqs disabled
  ...
2024-09-16 06:28:28 +02:00
Tomi Valkeinen
e6a1c40372 drm/omap: Fix locking in omap_gem_new_dmabuf()
omap_gem_new_dmabuf() creates the new gem object, and then takes and
holds the omap_obj->lock for the rest of the function. This has two
issues:

- omap_gem_free_object(), which is called in the error paths, also takes
  the same lock, leading to deadlock
- Even if the above wouldn't happen, in the error cases
  omap_gem_new_dmabuf() still unlocks omap_obj->lock, even after the
  omap_obj has already been freed.

Furthermore, I don't think there's any reason to take the lock at all,
as the object was just created and not yet shared with anyone else.

To fix all this, drop taking the lock.

Fixes: 3cbd0c587b ("drm/omap: gem: Replace struct_mutex usage with omap_obj private lock")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/511b99d7-aade-4f92-bd3e-63163a13d617@stanley.mountain/
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240806-omapdrm-misc-fixes-v1-3-15d31aea0831@ideasonboard.com
2024-09-16 07:12:40 +03:00
Tomi Valkeinen
0d76cb1148 drm/omap: Hide sparse warnings
sparse reports:

drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:122:16: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:122:16:    expected void const volatile [noderef] __iomem *addr
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:122:16:    got unsigned int [usertype] *wa_dma_data
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:130:9: warning: incorrect type in argument 2 (different address spaces)
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:130:9:    expected void volatile [noderef] __iomem *addr
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:130:9:    got unsigned int [usertype] *wa_dma_data
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:414:9: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:414:9:    expected void const volatile [noderef] __iomem *addr
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:414:9:    got unsigned int *

These come from pieces of code which do essentially:

p = dma_alloc_coherent()

dma_transfer_to_p()
readl(p)

writel(x, p)
dma_transfer_from_p()

I think we would do just fine without readl() and writel(), accessing
the memory without any extras, but ensuring that the necessary barriers
are in place. But this code is for a legacy platform, has been working
for ages, and it's doing work-arounds for hardware issues, and those
hardware issues are very difficult to trigger... So I would just rather
leave the code be as it is now.

However, the warnings are not nice. Hide the warnings by a (__iomem void
*) typecast.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407311737.VsJ0Sr1w-lkp@intel.com/
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240806-omapdrm-misc-fixes-v1-2-15d31aea0831@ideasonboard.com
2024-09-16 07:12:39 +03:00
Tomi Valkeinen
a88fee2d67 drm/omap: Fix possible NULL dereference
smatch reports:

drivers/gpu/drm/omapdrm/dss/base.c:176 omapdss_device_disconnect() error: we previously assumed 'src' could be null (see line 169)

This code is mostly from a time when omapdrm had its own display device
model. I can't honestly remember the details, and I don't think it's
worth digging in deeply into that for a legacy driver.

However, it looks like we only call omapdss_device_disconnect() and
omapdss_device_connect() with NULL as the src parameter. We can thus
drop the src parameter from both functions, and fix the smatch warning.

I don't think omapdss_device_disconnect() ever gets NULL for the dst
parameter (if it did, we'd crash soon after returning from the
function), but I have kept the !dst check, just in case, but I added a
WARN_ON() there.

Also, if the dst parameter can be NULL, we can't always get the struct
dss_device pointer from dst->dss (which is only used for a debug print).
To make sure we can't hit that issue, do it similarly to the
omapdss_device_connect() function: add 'struct dss_device *dss' as the
first parameter, so that we always have it regardless of the dst.

Fixes: 79107f274b ("drm/omap: Add support for drm_bridge")
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240806-omapdrm-misc-fixes-v1-1-15d31aea0831@ideasonboard.com
2024-09-16 07:12:39 +03:00
Linus Torvalds
9410645520 Networking changes for 6.12.
The zero-copy changes are relatively significant, but regression risk
 should be contained. The feature needs to be used to cause trouble.
 The new code did trigger a PowerPC64 bug with GCC 14:
 
   https://lore.kernel.org/netdev/20240913125302.0a06b4c7@canb.auug.org.au/
 
 a fix for which Michael will bring via his tree:
 
   https://lore.kernel.org/all/87jzffq9ge.fsf@mail.lhotse/
 
 Unideal, not sure if you'll be willing to pull without that fix but
 since we caught this recently I figured we'll defer to you during
 the MW instead of trying to fix it cross-tree.
 
 Also it feels like we got an order of magnitude more semi-automated
 "refactoring" chaff than usual, I wonder if it's just us.
 
 Core & protocols
 ----------------
 
  - Support Device Memory TCP, ability to zero-copy receive TCP payloads
    to a DMABUF region of memory while packet headers land separately
    in normal kernel buffers, and TCP processes then as usual.
 
  - The ability to read the PTP PHC (Physical Hardware Clock) alongside
    MONOTONIC_RAW timestamps with PTP_SYS_OFFSET_EXTENDED. Previously
    only CLOCK_REALTIME was supported.
 
  - Allow matching on all bits of IP DSCP for routing decisions.
    Previously we only supported on matching TOS bits in IPv4 which
    is a narrower interpretation of the same header field.
 
  - Increase the range of weights used for multi-path routing from
    8 bits to 16 bits.
 
  - Add support for IPv6 PIO p flag in the Prefix Information Option
    per draft-ietf-6man-pio-pflag.
 
  - IPv6 IOAM6 support for new tunsrc encap mode for better performance.
 
  - Detect destinations which blackhole MPTCP traffic and avoid initiating
    MPTCP connections to them for a certain period of time, 1h by default.
 
  - Improve IPsec control path performance by removing the inexact
    policies list.
 
  - AF_VSOCK: add support for SIOCOUTQ ioctl.
 
  - Add enum for reasons TCP reset was sent for easier tracing.
 
  - Add SMC ringbufs usage statistics.
 
 Drivers
 -------
 
  - Handle netconsole setup failures more gracefully, don't fail loading,
    retain the specified target as disabled.
 
  - Extend bonding's IPsec offload pass thru capabilities (ESN, stats).
 
 Filtering
 ---------
 
  - Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_*sockopt() to address the case
    when long-lived sockets miss a chance to set additional callbacks
    if a sockops program was not attached early in their lifetime.
 
  - Support using BPF skb helpers in tracepoints.
 
  - Conntrack Netlink: support CTA_FILTER for flush.
 
  - Improve SCTP support in nfnetlink_queue.
 
  - Improve performance of large nftables flush transactions.
 
 Things we sprinkled into general kernel code
 --------------------------------------------
 
  - selftests: support setting an "interpreter" for script files;
    make it easy to run as separate cases tests where one "interpreter"
    is fed various test descriptions (in our case packet sequences).
 
 Driver API
 ----------
 
  - Extend core and ethtool APIs to support many PHYs connected to a single
    interface (PHY topologies).
 
  - Extend cable diagnostics to specify whether Time Domain Reflectometry
    (TDR) or Active Link Cable Diagnostic (ALCD) was used.
 
  - Add library for implementing MAC-PHY Ethernet drivers for SPI devices
    compatible with Open Alliance 10BASE-T1x MAC-PHY Serial Interface (TC6)
    standard.
 
  - Add helpers to the PHY framework, for PHYs following the Open Alliance
    standards:
    - 1000BaseT1 link settings
    - cable test and diagnostics
 
  - Support listing / dumping all allocated RSS contexts.
 
  - Add configuration for frequency Embedded SYNC in DPLL, which magically
    embeds sync pulses into Ethernet signaling.
 
 Device drivers
 --------------
 
  - Ethernet high-speed NICs:
    - Broadcom (bnxt):
      - use better FW APIs for queue reset
      - support QOS and TPID settings for the SR-IOV VLAN
      - support dynamic MSI-X allocation
    - Intel (100G, ice, idpf):
      - ice: support PCIe subfunctions
      - iavf: add support for TC U32 filters on VFs
      - ice: support Embedded SYNC in DPLL
    - nVidia/Mellanox (mlx5):
      - support HW managed steering tables
      - support PCIe PTM cross timestamping
    - AMD/Pensando:
      - ionic: use page_pool to increase Rx performance
    - Cisco (enic):
      - report per-queue statistics
 
  - Ethernet virtual:
    - Microsoft vNIC:
      - mana: support configuring ring length
      - netvsc: enable more channels on systems with many CPUs
    - IBM veth:
      - optimize polling to improve TCP_RR performance
      - optimize performance of Tx handling
    - VirtIO net:
      - synchronize the operstate with the admin state to allow a lower
        virtio-net to propagate the link status to an upper device like
        macvlan
 
  - Ethernet NICs consumer, and embedded:
    - Add driver for Realtek automotive PCIe devices (RTL9054, RTL9068,
      RTL9072, RTL9075, RTL9068, RTL9071)
    - Add driver for Microchip LAN8650/1 10BASE-T1S MAC-PHY.
    - Microchip:
      - lan743x: use phylink - support WOL, EEE, pause, link settings
      - add Wake-on-LAN support for KSZ87xx family
      - add KSZ8895/KSZ8864 switch support
      - factor out FDMA code and use it in sparx5 and lan966x
        (including DCB support in both)
    - Synopsys (stmmac):
      - support frame preemption (configured using TC and ethtool)
      - support Loongson DWMAC (GMAC v3.73)
      - support RockChips RK3576 DWMAC
    - TI:
      - am65-cpsw: add multi queue RX support
      - icssg-prueth: HSR offload support
    - Cadence (macb):
      - enable software (hrtimer based) IRQ coalescing by default
    - Xilinx (axinet):
      - expose HW statistics
      - improve multicast filtering
      - relax Rx checksum offload constraints
    - MediaTek:
      - mt7530: add EN7581 support
    - Aspeed (ftgmac100):
      - report link speed and duplex
    - Intel:
      - igc: add mqprio offload
      - igc: report EEE configuration
    - RealTek (r8169):
      - add support for RTL8126A rev.b
    - Vitesse (vsc73xx):
      - implement FDB add/del/dump operations
    - Freescale (fs_enet):
      - use phylink
 
  - Ethernet PHYs:
    - vitesse: implement downshift and MDI-X in vsc73xx PHYs
    - microchip: support LAN887x, supporting IEEE 802.3bw (100BASE-T1)
      and IEEE 802.3bp (1000BASE-T1) specifications
    - add Applied Micro QT2025 PHY driver (in Rust)
    - add Motorcomm yt8821 2.5G Ethernet PHY driver
 
  - CAN:
    - add driver for Rockchip RK3568 CAN-FD controller
    - flexcan: add wakeup support for imx95
    - kvaser_usb: set hardware timestamp on transmitted packets
 
  - WiFi:
    - mac80211/cfg80211:
      - EHT rate support in AQL airtime fairness
      - handle DFS (radar detection) per link in Multi-Link Operation
    - RealTek (rtw89):
      - support RTL8852BT and 8852BE-VT (WiFi 6)
      - support hardware rfkill
      - support HW encryption in unicast management frames
      - support Wake-on-WLAN with supported network detection
    - RealTek (rtw89):
      - improve Rx performance by using USB frame aggregation
      - support USB 3 with RTL8822CU/RTL8822BU
    - Intel (iwlwifi/mvm):
      - offload RLC/SMPS functionality to firmware
    - Marvell (mwifiex):
      - add host based MLME to enable WPA3
 
  - Bluetooth:
    - add support for Amlogic HCI UART protocol
    - add support for ISO data/packets to Intel and NXP drivers
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "The zero-copy changes are relatively significant, but regression risk
  should be contained. The feature needs to be used to cause trouble.

  Also it feels like we got an order of magnitude more semi-automated
  "refactoring" chaff than usual, I wonder if it's just us.

  Core & protocols:

   - Support Device Memory TCP, ability to zero-copy receive TCP
     payloads to a DMABUF region of memory while packet headers land
     separately in normal kernel buffers, and TCP processes then as
     usual.

   - The ability to read the PTP PHC (Physical Hardware Clock) alongside
     MONOTONIC_RAW timestamps with PTP_SYS_OFFSET_EXTENDED. Previously
     only CLOCK_REALTIME was supported.

   - Allow matching on all bits of IP DSCP for routing decisions.
     Previously we only supported on matching TOS bits in IPv4 which is
     a narrower interpretation of the same header field.

   - Increase the range of weights used for multi-path routing from
     8 bits to 16 bits.

   - Add support for IPv6 PIO p flag in the Prefix Information Option
     per draft-ietf-6man-pio-pflag.

   - IPv6 IOAM6 support for new tunsrc encap mode for better
     performance.

   - Detect destinations which blackhole MPTCP traffic and avoid
     initiating MPTCP connections to them for a certain period of time,
     1h by default.

   - Improve IPsec control path performance by removing the inexact
     policies list.

   - AF_VSOCK: add support for SIOCOUTQ ioctl.

   - Add enum for reasons TCP reset was sent for easier tracing.

   - Add SMC ringbufs usage statistics.

  Drivers:

   - Handle netconsole setup failures more gracefully, don't fail
     loading, retain the specified target as disabled.

   - Extend bonding's IPsec offload pass thru capabilities (ESN, stats).

  Filtering:

   - Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_*sockopt() to address the case
     when long-lived sockets miss a chance to set additional callbacks
     if a sockops program was not attached early in their lifetime.

   - Support using BPF skb helpers in tracepoints.

   - Conntrack Netlink: support CTA_FILTER for flush.

   - Improve SCTP support in nfnetlink_queue.

   - Improve performance of large nftables flush transactions.

  Things we sprinkled into general kernel code:

   - selftests: support setting an "interpreter" for script files; make
     it easy to run as separate cases tests where one "interpreter" is
     fed various test descriptions (in our case packet sequences).

  Driver API:

   - Extend core and ethtool APIs to support many PHYs connected to a
     single interface (PHY topologies).

   - Extend cable diagnostics to specify whether Time Domain
     Reflectometry (TDR) or Active Link Cable Diagnostic (ALCD) was
     used.

   - Add library for implementing MAC-PHY Ethernet drivers for SPI
     devices compatible with Open Alliance 10BASE-T1x MAC-PHY Serial
     Interface (TC6) standard.

   - Add helpers to the PHY framework, for PHYs following the Open
     Alliance standards:
       - 1000BaseT1 link settings
       - cable test and diagnostics

   - Support listing / dumping all allocated RSS contexts.

   - Add configuration for frequency Embedded SYNC in DPLL, which
     magically embeds sync pulses into Ethernet signaling.

  Device drivers:

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - use better FW APIs for queue reset
         - support QOS and TPID settings for the SR-IOV VLAN
         - support dynamic MSI-X allocation
      - Intel (100G, ice, idpf):
         - ice: support PCIe subfunctions
         - iavf: add support for TC U32 filters on VFs
         - ice: support Embedded SYNC in DPLL
      - nVidia/Mellanox (mlx5):
         - support HW managed steering tables
         - support PCIe PTM cross timestamping
      - AMD/Pensando:
         - ionic: use page_pool to increase Rx performance
      - Cisco (enic):
         - report per-queue statistics

   - Ethernet virtual:
      - Microsoft vNIC:
         - mana: support configuring ring length
         - netvsc: enable more channels on systems with many CPUs
      - IBM veth:
         - optimize polling to improve TCP_RR performance
         - optimize performance of Tx handling
      - VirtIO net:
         - synchronize the operstate with the admin state to allow a
           lower virtio-net to propagate the link status to an upper
           device like macvlan

   - Ethernet NICs consumer, and embedded:
      - Add driver for Realtek automotive PCIe devices (RTL9054,
        RTL9068, RTL9072, RTL9075, RTL9068, RTL9071)
      - Add driver for Microchip LAN8650/1 10BASE-T1S MAC-PHY.
      - Microchip:
         - lan743x: use phylink - support WOL, EEE, pause, link settings
         - add Wake-on-LAN support for KSZ87xx family
         - add KSZ8895/KSZ8864 switch support
         - factor out FDMA code and use it in sparx5 and lan966x
           (including DCB support in both)
      - Synopsys (stmmac):
         - support frame preemption (configured using TC and ethtool)
         - support Loongson DWMAC (GMAC v3.73)
         - support RockChips RK3576 DWMAC
      - TI:
         - am65-cpsw: add multi queue RX support
         - icssg-prueth: HSR offload support
      - Cadence (macb):
         - enable software (hrtimer based) IRQ coalescing by default
      - Xilinx (axinet):
         - expose HW statistics
         - improve multicast filtering
         - relax Rx checksum offload constraints
      - MediaTek:
         - mt7530: add EN7581 support
      - Aspeed (ftgmac100):
         - report link speed and duplex
      - Intel:
         - igc: add mqprio offload
         - igc: report EEE configuration
      - RealTek (r8169):
         - add support for RTL8126A rev.b
      - Vitesse (vsc73xx):
         - implement FDB add/del/dump operations
      - Freescale (fs_enet):
         - use phylink

   - Ethernet PHYs:
      - vitesse: implement downshift and MDI-X in vsc73xx PHYs
      - microchip: support LAN887x, supporting IEEE 802.3bw (100BASE-T1)
        and IEEE 802.3bp (1000BASE-T1) specifications
      - add Applied Micro QT2025 PHY driver (in Rust)
      - add Motorcomm yt8821 2.5G Ethernet PHY driver

   - CAN:
      - add driver for Rockchip RK3568 CAN-FD controller
      - flexcan: add wakeup support for imx95
      - kvaser_usb: set hardware timestamp on transmitted packets

   - WiFi:
      - mac80211/cfg80211:
         - EHT rate support in AQL airtime fairness
         - handle DFS (radar detection) per link in Multi-Link Operation
      - RealTek (rtw89):
         - support RTL8852BT and 8852BE-VT (WiFi 6)
         - support hardware rfkill
         - support HW encryption in unicast management frames
         - support Wake-on-WLAN with supported network detection
      - RealTek (rtw89):
         - improve Rx performance by using USB frame aggregation
         - support USB 3 with RTL8822CU/RTL8822BU
      - Intel (iwlwifi/mvm):
         - offload RLC/SMPS functionality to firmware
      - Marvell (mwifiex):
         - add host based MLME to enable WPA3

   - Bluetooth:
      - add support for Amlogic HCI UART protocol
      - add support for ISO data/packets to Intel and NXP drivers"

* tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1303 commits)
  net/mlx5: HWS, check the correct variable in hws_send_ring_alloc_sq()
  netfilter: nft_socket: Fix a NULL vs IS_ERR() bug in nft_socket_cgroup_subtree_level()
  ice: Fix a NULL vs IS_ERR() check in probe()
  ice: Fix a couple NULL vs IS_ERR() bugs
  net: ethernet: fs_enet: Make the per clock optional
  net: ti: icssg-prueth: Add multicast filtering support in HSR mode
  net: ti: icssg-prueth: Enable HSR Tx duplication, Tx Tag and Rx Tag offload
  net: ti: icssg-prueth: Add support for HSR frame forward offload
  net: ti: icssg-prueth: Stop hardcoding def_inc
  net: ti: icss-iep: Move icss_iep structure
  net: ibm: emac: get rid of wol_irq
  net: ibm: emac: remove all waiting code
  net: ibm: emac: replace of_get_property
  net: ibm: emac: use netdev's phydev directly
  net: ibm: emac: use devm for register_netdev
  net: ibm: emac: remove mii_bus with devm
  net: ibm: emac: use devm for of_iomap
  net: ibm: emac: manage emac_irq with devm
  net: ibm: emac: use devm for alloc_etherdev
  octeontx2-af: debugfs: Add Channel info to RPM map
  ...
2024-09-16 06:02:27 +02:00
Jisheng Zhang
8f1534e744
riscv: avoid Imbalance in RAS
Inspired by[1], modify the code to remove the code of modifying ra to
avoid imbalance RAS (return address stack) which may lead to incorret
predictions on return.

Link: https://lore.kernel.org/linux-riscv/20240607061335.2197383-1-cyrilbur@tenstorrent.com/ [1]
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Cyril Bur <cyrilbur@tenstorrent.com>
Link: https://lore.kernel.org/r/20240720170659.1522-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:58:25 -07:00
Palmer Dabbelt
7e340f4fad
Merge patch series "Svvptc extension to remove preventive sfence.vma"
Alexandre Ghiti <alexghiti@rivosinc.com> says:

In RISC-V, after a new mapping is established, a sfence.vma needs to be
emitted for different reasons:

- if the uarch caches invalid entries, we need to invalidate it otherwise
  we would trap on this invalid entry,
- if the uarch does not cache invalid entries, a reordered access could fail
  to see the new mapping and then trap (sfence.vma acts as a fence).

We can actually avoid emitting those (mostly) useless and costly sfence.vma
by handling the traps instead:

- for new kernel mappings: only vmalloc mappings need to be taken care of,
  other new mapping are rare and already emit the required sfence.vma if
  needed.
  That must be achieved very early in the exception path as explained in
  patch 3, and this also fixes our fragile way of dealing with vmalloc faults.

- for new user mappings: Svvptc makes update_mmu_cache() a no-op but we can
  take some gratuitous page faults (which are very unlikely though).

Patch 1 and 2 introduce Svvptc extension probing.

On our uarch that does not cache invalid entries and a 6.5 kernel, the
gains are measurable:

* Kernel boot:                  6%
* ltp - mmapstress01:           8%
* lmbench - lat_pagefault:      20%
* lmbench - lat_mmap:           5%

Here are the corresponding numbers of sfence.vma emitted:

* Ubuntu boot to login:
Before: ~630k sfence.vma
After:  ~200k sfence.vma

* ltp - mmapstress01
Before: ~45k
After:  ~6.3k

* lmbench - lat_pagefault
Before: ~665k
After:   832 (!)

* lmbench - lat_mmap
Before: ~546k
After:   718 (!)

Thanks to Ved and Matt Evans for triggering the discussion that led to
this patchset!

* b4-shazam-merge:
  riscv: Stop emitting preventive sfence.vma for new userspace mappings with Svvptc
  riscv: Stop emitting preventive sfence.vma for new vmalloc mappings
  dt-bindings: riscv: Add Svvptc ISA extension description
  riscv: Add ISA extension parsing for Svvptc

Link: https://lore.kernel.org/r/20240717060125.139416-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:58:24 -07:00
Steffen Persvold
1845d381f2
riscv: cacheinfo: Add back init_cache_level() function
commit 5944ce092b (arch_topology: Build cacheinfo from primary CPU)
removed the init_cache_level() function from arch/riscv/kernel/cacheinfo.c
and relies on the init_cpu_topology() function in drivers/base/arch_topology.c
to call fetch_cache_info() which in turn calls init_of_cache_level() to
populate the cache hierarchy information. However, init_cpu_topology() is only
called from smpboot.c:smp_prepare_cpus() and thus only available when
CONFIG_SMP is defined.

To support non-SMP enabled kernels to still detect cache hierarchy, we add back
the init_cache_level() function. The init_level_allocate_ci() function handles
this gracefully on SMP-enabled kernels anyway where fetch_cache_info() is
called from init_cpu_topology() earlier in the boot phase.

Signed-off-by: Steffen Persvold <spersvold@gmail.com>
Link: https://lore.kernel.org/r/20240707003515.5058-1-spersvold@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:15:50 -07:00
Jinjie Ruan
cea9d27705
riscv: Remove unused _TIF_WORK_MASK
Since commit f0bddf5058 ("riscv: entry: Convert to generic entry"),
_TIF_WORK_MASK is no longer used, so remove it.

Fixes: f0bddf5058 ("riscv: entry: Convert to generic entry")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Andy Chiu <andy.chiu@sifive.com>
Link: https://lore.kernel.org/r/20240711111508.1373322-1-ruanjinjie@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:15:50 -07:00
Palmer Dabbelt
9b2863e2cc
Merge patch series "riscv: select ARCH_USE_SYM_ANNOTATIONS"
Jisheng Zhang <jszhang@kernel.org> says:

commit 76329c6939 ("riscv: Use SYM_*() assembly macros instead
of deprecated ones"), most riscv has been to converted the new style
SYM_ assembler annotations. The remaining one is sifive's
errata_cip_453.S, so convert to new style SYM_ annotations as well.
After that select ARCH_USE_SYM_ANNOTATIONS.

* b4-shazam-merge:
  riscv: select ARCH_USE_SYM_ANNOTATIONS
  riscv: errata: sifive: Use SYM_*() assembly macros

Link: https://lore.kernel.org/r/20240709160536.3690-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:15:49 -07:00
Xiao Wang
1e206fad76
drivers/perf: riscv: Remove redundant macro check
The macro CONFIG_RISCV_PMU must have been defined when riscv_pmu.c gets
compiled, so this patch removes the redundant check.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240708121224.1148154-1-xiao.w.wang@intel.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:15:48 -07:00
Palmer Dabbelt
f25170a053
Merge patch series "riscv: stacktrace: Add USER_STACKTRACE support"
Jinjie Ruan <ruanjinjie@huawei.com> says:

Add RISC-V USER_STACKTRACE support, and fix the fp alignment bug
in perf_callchain_user() by the way as Björn pointed out.

* b4-shazam-merge:
  riscv: stacktrace: Add USER_STACKTRACE support
  riscv: Fix fp alignment bug in perf_callchain_user()

Link: https://lore.kernel.org/r/20240708032847.2998158-1-ruanjinjie@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:15:47 -07:00
Jisheng Zhang
5c178472af
riscv: define ILLEGAL_POINTER_VALUE for 64bit
This is used in poison.h for poison pointer offset. Based on current
SV39, SV48 and SV57 vm layout, 0xdead000000000000 is a proper value
that is not mappable, this can avoid potentially turning an oops to
an expolit.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Fixes: fbe934d69e ("RISC-V: Build Infrastructure")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240705170210.3236-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-15 20:15:40 -07:00
Mikulas Patocka
c8691cd0fc Revert "dm: requeue IO if mapping table not yet available"
This reverts commit fa247089de.

The following sequence of commands causes a livelock - there will be
workqueue process looping and consuming 100% CPU:

dmsetup create --notable test
truncate -s 1MiB testdata
losetup /dev/loop0 testdata
dmsetup load test --table '0 2048 linear /dev/loop0 0'
dd if=/dev/zero of=/dev/dm-0 bs=16k count=1 conv=fdatasync

The livelock is caused by the commit fa247089de. The commit claims that
it fixes a race condition, however, it is unknown what the actual race
condition is and what program is involved in the race condition.

When the inactive table is loaded, the nodes /dev/dm-0 and
/sys/block/dm-0 are created. /dev/dm-0 has zero size at this point. When
the device is suspended and resumed, the nodes /dev/mapper/test and
/dev/disk/* are created.

If some program opens a block device before it is created by dmsetup or
lvm, the program is buggy, so dm could just report an error as it used to
do before.

Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: fa247089de ("dm: requeue IO if mapping table not yet available")
2024-09-15 21:02:54 +02:00
Jakub Kicinski
3561373114 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in late fixes to prepare for the 6.12 net-next PR.

No conflicts or adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-15 09:13:19 -07:00
Hongbo Li
21dcbc17eb smb: use LIST_HEAD() to simplify code
list_head can be initialized automatically with LIST_HEAD()
instead of calling INIT_LIST_HEAD(). No functional impact.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Pali Rohár
2ba0d8947e cifs: Recognize SFU socket type
SFU since its (first) version 3.0 supports AF_LOCAL sockets and stores them
on filesytem as system file with one zero byte. Add support for detecting
this SFU socket type into cifs_sfu_type() function.

With this change cifs_sfu_type() would correctly detect all special file
types created by SFU: fifo, socket, symlink, block and char.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Pali Rohár
25f6bd0fb0 cifs: Show debug message when SFU Fifo type was detected
For debugging purposes it is a good idea to show detected SFU type also for
Fifo. Debug message is already print for all other special types.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Pali Rohár
bb68327053 cifs: Put explicit zero byte into SFU block/char types
SFU types IntxCHR and IntxBLK are 8 bytes with zero as last byte. Make it
explicit in memcpy and memset calls, so the zero byte is visible in the
code (and not hidden as string trailing nul byte).

It is important for reader to show the last byte for block and char types
because it differs from the last byte of symlink type (which has it 0x01).

Also it is important to show that the type is not nul-term string, but
rather 8 bytes (with some printable bytes).

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Pali Rohár
cf2ce67345 cifs: Add support for reading SFU symlink location
Currently when sfu mount option is specified then CIFS can recognize SFU
symlink, but is not able to read symlink target location. readlink()
syscall just returns that operation is not supported.

Implement this missing functionality in cifs_sfu_type() function. Read
target location of SFU-style symlink, parse it and fill into fattr's
cf_symlink_target member.

SFU-style symlink is file which has system attribute set and file content
is buffer "IntxLNK\1" (8th byte is 0x01) followed by the target location
encoded in little endian UCS-2/UTF-16. This format was introduced in
Interix 3.0 subsystem, as part of the Microsoft SFU 3.0 and is used also by
all later versions. Previous versions had no symlink support.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Pali Rohár
89c601ab7c cifs: Fix recognizing SFU symlinks
SFU symlinks have 8 byte prefix: "IntxLNK\1".
So check also the last 8th byte 0x01.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Qianqiang Liu
9b4af91346 smb: client: compress: fix an "illegal accesses" issue
Using uninitialized value "bkt" when calling "kfree"

Fixes: 13b68d44990d ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <qianqiang.liu@163.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Qianqiang Liu
590efcd3c7 smb: client: compress: fix a potential issue of freeing an invalid pointer
The dst pointer may not be initialized when calling kvfree(dst)

Fixes: 13b68d44990d9 ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <qianqiang.liu@163.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Enzo Matsumiya
94ae8c3fee smb: client: compress: LZ77 code improvements cleanup
- Check data compressibility with some heuristics (copied from
  btrfs):
  - should_compress() final decision is is_compressible(data)

- Cleanup compress/lz77.h leaving only lz77_compress() exposed:
  - Move parts to compress/lz77.c, while removing the rest of it
    because they were either unused, used only once, were
    implemented wrong (thanks to David Howells for the help)

- Updated the compression parameters (still compatible with
  Windows implementation) trading off ~20% compression ratio
  for ~40% performance:
  - min match len: 3 -> 4
  - max distance: 8KiB -> 1KiB
  - hash table type: u32 * -> u64 *

Known bugs:
This implementation currently works fine in general, but breaks with
some payloads used during testing.  Investigation ongoing, to be
fixed in a next commit.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Co-developed-by: David Howells <dhowells@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:45 -05:00
Enzo Matsumiya
f046d71e84 smb: client: insert compression check/call on write requests
On smb2_async_writev(), set CIFS_COMPRESS_REQ on request flags if
should_compress() returns true.

On smb_send_rqst() check the flags, and compress and send the request to
the server.

(*) If the compression fails with -EMSGSIZE (i.e. compressed size is >=
uncompressed size), the original uncompressed request is sent instead.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
Steve French
d14bbfff25 smb3: mark compression as CONFIG_EXPERIMENTAL and fix missing compression operation
Move SMB3.1.1 compression code into experimental config option,
and fix the compress mount option. Implement unchained LZ77
"plain" compression algorithm as per MS-XCA specification
section "2.3 Plain LZ77 Compression Algorithm Details".

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
Gaosheng Cui
6795dab403 cifs: Remove obsoleted declaration for cifs_dir_open
The cifs_dir_open() have been removed since
commit 737b758c96 ("[PATCH] cifs: character mapping of special
characters (part 3 of 3)"), and now it is useless, so remove it.

Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
Shen Lichuan
25e68c37ca smb: client: Use min() macro
Use the min() macro to simplify the function and improve
its readability.

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
Yuesong Li
9290038be2 cifs: convert to use ERR_CAST()
Use ERR_CAST() as it is designed for casting an error pointer to
another type.

This macro uses the __force and __must_check modifiers, which are used
to tell the compiler to check for errors where this macro is used.

Signed-off-by: Yuesong Li <liyuesong@vivo.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
e2fcd3fa03 smb: add comment to STATUS_MCA_OCCURED
Explained why the typo was not corrected.

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
78181a5504 smb: move SMB2 Status code to common header file
There are only 4 different definitions between the client and server:

  - STATUS_SERVER_UNAVAILABLE: from client/smb2status.h
  - STATUS_FILE_NOT_AVAILABLE: from client/smb2status.h
  - STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP: from server/smbstatus.h
  - STATUS_INVALID_LOCK_RANGE: from server/smbstatus.h

Rename client/smb2status.h to common/smb2status.h, and merge the
2 different definitions of server to common header file.

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
b51174da74 smb: move some duplicate definitions to common/smbacl.h
In order to maintain the code more easily, move duplicate definitions
to new common header file.

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
09bedafc1e smb/client: rename cifs_ace to smb_ace
Preparation for moving acl definitions to new common header file.

Use the following shell command to rename:

  find fs/smb/client -type f -exec sed -i \
    's/struct cifs_ace/struct smb_ace/g' {} +

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
251b93ae73 smb/client: rename cifs_acl to smb_acl
Preparation for moving acl definitions to new common header file.

Use the following shell command to rename:

  find fs/smb/client -type f -exec sed -i \
    's/struct cifs_acl/struct smb_acl/g' {} +

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
7f599d8fb3 smb/client: rename cifs_sid to smb_sid
Preparation for moving acl definitions to new common header file.

Use the following shell command to rename:

  find fs/smb/client -type f -exec sed -i \
    's/struct cifs_sid/struct smb_sid/g' {} +

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
ChenXiaoSong
3651487607 smb/client: rename cifs_ntsd to smb_ntsd
Preparation for moving acl definitions to new common header file.

Use the following shell command to rename:

  find fs/smb/client -type f -exec sed -i \
    's/struct cifs_ntsd/struct smb_ntsd/g' {} +

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-09-15 10:42:44 -05:00
Dan Carpenter
be461814aa net/mlx5: HWS, check the correct variable in hws_send_ring_alloc_sq()
There is a copy and paste bug so this code checks "sq->dep_wqe" where
"sq->wr_priv" was intended.  It could result in a NULL pointer
dereference.

Fixes: 2ca62599aa ("net/mlx5: HWS, added send engine and context handling")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/da822315-02b7-4f5b-9c86-0d5176c5069d@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-15 08:38:56 -07:00
Dan Carpenter
7052622fcc netfilter: nft_socket: Fix a NULL vs IS_ERR() bug in nft_socket_cgroup_subtree_level()
The cgroup_get_from_path() function never returns NULL, it returns error
pointers.  Update the error handling to match.

Fixes: 7f3287db65 ("netfilter: nft_socket: make cgroupsv2 matching work with namespaces")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/bbc0c4e0-05cc-4f44-8797-2f4b3920a820@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-09-15 08:33:12 -07:00