- 29 Jun, 2021 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespaceLinus Torvalds authored
Pull user namespace rlimit handling update from Eric Biederman: "This is the work mainly by Alexey Gladkov to limit rlimits to the rlimits of the user that created a user namespace, and to allow users to have stricter limits on the resources created within a user namespace." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: cred: add missing return error code when set_cred_ucounts() failed ucounts: Silence warning in dec_rlimit_ucounts ucounts: Set ucount_max to the largest positive value the type can hold kselftests: Add test to check for rlimit changes in different user namespaces Reimplement RLIMIT_MEMLOCK on top of ucounts Reimplement RLIMIT_SIGPENDING on top of ucounts Reimplement RLIMIT_MSGQUEUE on top of ucounts Reimplement RLIMIT_NPROC on top of ucounts Use atomic_t for ucounts reference counting Add a reference to ucounts for each cred Increase size of ucounts to atomic_long_t
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Linus Torvalds authored
Merge tag 'array-bounds-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux Pull array-bounds fixes from Gustavo Silva: "Fix an out-of-bounds warning in the media subsystem. This is part of the ongoing efforts to globally enable -Warray-bounds" * tag 'array-bounds-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
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Linus Torvalds authored
Merge tag 'fallthrough-fixes-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux Pull fallthrough fixes from Gustavo Silva: "Fix many fall-through warnings when building with Clang 12.0.0 and '-Wimplicit-fallthrough' so that we at some point will be able to enable that warning by default" * tag 'fallthrough-fixes-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (26 commits) rxrpc: Fix fall-through warnings for Clang drm/nouveau/clk: Fix fall-through warnings for Clang drm/nouveau/therm: Fix fall-through warnings for Clang drm/nouveau: Fix fall-through warnings for Clang xfs: Fix fall-through warnings for Clang xfrm: Fix fall-through warnings for Clang tipc: Fix fall-through warnings for Clang sctp: Fix fall-through warnings for Clang rds: Fix fall-through warnings for Clang net/packet: Fix fall-through warnings for Clang net: netrom: Fix fall-through warnings for Clang ide: Fix fall-through warnings for Clang hwmon: (max6621) Fix fall-through warnings for Clang hwmon: (corsair-cpro) Fix fall-through warnings for Clang firewire: core: Fix fall-through warnings for Clang braille_console: Fix fall-through warnings for Clang ipv4: Fix fall-through warnings for Clang qlcnic: Fix fall-through warnings for Clang bnxt_en: Fix fall-through warnings for Clang netxen_nic: Fix fall-through warnings for Clang ...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull pstore updates from Kees Cook: "Use normal block device I/O path for pstore/blk. (Christoph Hellwig, Kees Cook, Pu Lehui)" * tag 'pstore-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore/blk: Include zone in pstore_device_info pstore/blk: Fix kerndoc and redundancy on blkdev param pstore/blk: Use the normal block device I/O path pstore/blk: Move verify_size() macro out of function pstore/blk: Improve failure reporting
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull seccomp updates from Kees Cook: - Add "atomic addfd + send reply" mode to SECCOMP_USER_NOTIF to better handle EINTR races visible to seccomp monitors. (Rodrigo Campos, Sargun Dhillon) - Improve seccomp selftests for readability in CI systems. (Kees Cook) * tag 'seccomp-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: Avoid using "sysctl" for report selftests/seccomp: Flush benchmark output selftests/seccomp: More closely track fds being assigned selftests/seccomp: Add test for atomic addfd+send seccomp: Support atomic "addfd + send reply"
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- 28 Jun, 2021 35 commits
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git://git.lwn.net/linuxLinus Torvalds authored
Pull documentation updates from Jonathan Corbet: "This was a reasonably active cycle for documentation; this includes: - Some kernel-doc cleanups. That script is still regex onslaught from hell, but it has gotten a little better. - Improvements to the checkpatch docs, which are also used by the tool itself. - A major update to the pathname lookup documentation. - Elimination of :doc: markup, since our automarkup magic can create references from filenames without all the extra noise. - The flurry of Chinese translation activity continues. Plus, of course, the usual collection of updates, typo fixes, and warning fixes" * tag 'docs-5.14' of git://git.lwn.net/linux: (115 commits) docs: path-lookup: use bare function() rather than literals docs: path-lookup: update symlink description docs: path-lookup: update get_link() ->follow_link description docs: path-lookup: update WALK_GET, WALK_PUT desc docs: path-lookup: no get_link() docs: path-lookup: update i_op->put_link and cookie description docs: path-lookup: i_op->follow_link replaced with i_op->get_link docs: path-lookup: Add macro name to symlink limit description docs: path-lookup: remove filename_mountpoint docs: path-lookup: update do_last() part docs: path-lookup: update path_mountpoint() part docs: path-lookup: update path_to_nameidata() part docs: path-lookup: update follow_managed() part docs: Makefile: Use CONFIG_SHELL not SHELL docs: Take a little noise out of the build process docs: x86: avoid using ReST :doc:`foo` markup docs: virt: kvm: s390-pv-boot.rst: avoid using ReST :doc:`foo` markup docs: userspace-api: landlock.rst: avoid using ReST :doc:`foo` markup docs: trace: ftrace.rst: avoid using ReST :doc:`foo` markup docs: trace: coresight: coresight.rst: avoid using ReST :doc:`foo` markup ...
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs updates from David Sterba: "A normal mix of improvements, core changes and features that user have been missing or complaining about. User visible changes: - new sysfs exports: - add sysfs knob to limit scrub IO bandwidth per device - device stats are also available in /sys/fs/btrfs/FSID/devinfo/DEVID/error_stats - support cancellable resize and device delete ioctls - change how the empty value is interpreted when setting a property, so far we have only 'btrfs.compression' and we need to distinguish a reset to defaults and setting "do not compress", in general the empty value will always mean 'reset to defaults' for any other property, for compression it's either 'no' or 'none' to forbid compression Performance improvements: - no need for full sync when truncation does not touch extents, reported run time change is -12% - avoid unnecessary logging of xattrs during fast fsyncs (+17% throughput, -17% runtime on xattr stress workload) Core: - preemptive flushing improvements and fixes - adjust clamping logic on multi-threaded workloads to avoid flushing too soon - take into account global block reserve, may help on almost full filesystems - continue flushing when there are enough pending delalloc and ordered bytes - simplify logic around conditional transaction commit, a workaround used in the past for throttling that's been superseded by ticket reservations that manage the throttling in a better way - subpage blocksize preparation: - submit read time repair only for each corrupted sector - scrub repair now works with sectors and not pages - free space cache (v1) works with sectors and not pages - more fine grained bio tracking for extents - subpage support in page callbacks, extent callbacks, end io callbacks - simplify transaction abort logic and always abort and don't check various potentially unreliable stats tracked by the transaction - exclusive operations can do more checks when started and allow eg. cancellation of the same running operation - ensure relocation never runs while we have send operations running, e.g. when zoned background auto reclaim starts Fixes: - zoned: more sanity checks of write pointer - improve error handling in delayed inodes - send: - fix invalid path for unlink operations after parent orphanization - fix crash when memory allocations trigger reclaim - skip compression of we have only one page (can't make things better) - empty value of a property newly means reset to default Other: - lots of cleanups, comment updates, yearly typo fixing - disable build on platforms having page size 256K" * tag 'for-5.14-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (101 commits) btrfs: remove unused btrfs_fs_info::total_pinned btrfs: rip out btrfs_space_info::total_bytes_pinned btrfs: rip the first_ticket_bytes logic from fail_all_tickets btrfs: remove FLUSH_DELAYED_REFS from data ENOSPC flushing btrfs: rip out may_commit_transaction btrfs: send: fix crash when memory allocations trigger reclaim btrfs: ensure relocation never runs while we have send operations running btrfs: shorten integrity checker extent data mount option btrfs: switch mount option bits to enums and use wider type btrfs: props: change how empty value is interpreted btrfs: compression: don't try to compress if we don't have enough pages btrfs: fix unbalanced unlock in qgroup_account_snapshot() btrfs: sysfs: export dev stats in devinfo directory btrfs: fix typos in comments btrfs: remove a stale comment for btrfs_decompress_bio() btrfs: send: use list_move_tail instead of list_del/list_add_tail btrfs: disable build on platforms having page size 256K btrfs: send: fix invalid path for unlink operations after parent orphanization btrfs: inline wait_current_trans_commit_start in its caller btrfs: sink wait_for_unblock parameter to async commit ...
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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofsLinus Torvalds authored
Pull erofs updates from Gao Xiang: "No noticable change available for this cycle. Just a bugfix related to sb chksum feature, two minor cleanups and Chao's email address update: - fix wrong error code overwritten due to sb checksum feature - two minor cleanups - update Chao's email address" * tag 'erofs-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: MAINTAINERS: erofs: update my email address erofs: clean up file headers & footers erofs: remove the occupied parameter from z_erofs_pagevec_enqueue() erofs: fix error return code in erofs_read_superblock()
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git://git.kernel.org/pub/scm/fs/fscrypt/fscryptLinus Torvalds authored
Pull fscrypt updates from Eric Biggers: "A couple bug fixes for fs/crypto/: - Fix handling of major dirhash values that happen to be 0. - Fix cases where keys were derived differently on big endian systems than on little endian systems (affecting some newer features only)" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt: fscrypt: fix derivation of SipHash keys on big endian CPUs fscrypt: don't ignore minor_hash when hash is 0
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git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrityLinus Torvalds authored
Pull integrity subsystem updates from Mimi Zohar: "The large majority of the changes are EVM portable & immutable signature related: removing a dependency on loading an HMAC key, safely allowing file metadata included in the EVM portable & immutable signatures to be modified, allowing EVM signatures to fulfill IMA file signature policy requirements, including the EVM file metadata signature in lieu of an IMA file data signature in the measurement list, and adding dynamic debugging of EVM file metadata. In addition, in order to detect critical data or file change reversions, duplicate measurement records are permitted in the IMA measurement list. The remaining patches address compiler, sparse, and doc warnings" * tag 'integrity-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: (31 commits) evm: Check xattr size discrepancy between kernel and user evm: output EVM digest calculation info IMA: support for duplicate measurement records ima: Fix warning: no previous prototype for function 'ima_add_kexec_buffer' ima: differentiate between EVM failures in the audit log ima: Fix fall-through warning for Clang ima: Pass NULL instead of 0 to ima_get_action() in ima_file_mprotect() ima: Include header defining ima_post_key_create_or_update() ima/evm: Fix type mismatch ima: Set correct casting types doc: Fix warning in Documentation/security/IMA-templates.rst evm: Don't return an error in evm_write_xattrs() if audit is not enabled ima: Define new template evm-sig ima: Define new template fields xattrnames, xattrlengths and xattrvalues evm: Verify portable signatures against all protected xattrs ima: Define new template field imode ima: Define new template fields iuid and igid ima: Add ima_show_template_uint() template library function ima: Don't remove security.ima if file must not be appraised ima: Introduce template field evmsig and write to field sig as fallback ...
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git://git.osdn.net/gitroot/tomoyo/tomoyo-test1Linus Torvalds authored
Pull tomoyo fix from Tetsuo Handa: "A doc warning fix from ChenXiaoSong" * tag 'tomoyo-pr-20210628' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1: tomoyo: fix doc warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto updates from Herbert Xu: "Algorithms: - Fix rmmod crash with x86/curve25519 - Add ECDH NIST P384 - Generate assembly files at build-time with perl scripts on arm - Switch to HMAC SHA512 DRBG as default DRBG Drivers: - Add sl3516 crypto engine - Add ECDH NIST P384 support in hisilicon/hpre - Add {ofb,cfb,ctr} over {aes,sm4} in hisilicon/sec - Add {ccm,gcm} over {aes,sm4} in hisilicon/sec - Enable omap hwrng driver for TI K3 family - Add support for AEAD algorithms in qce" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (142 commits) crypto: sl3516 - depends on HAS_IOMEM crypto: hisilicon/qm - implement for querying hardware tasks status. crypto: sl3516 - Fix build warning without CONFIG_PM MAINTAINERS: update caam crypto driver maintainers list crypto: nx - Fix numerous sparse byte-order warnings crypto: nx - Fix RCU warning in nx842_OF_upd_status crypto: api - Move crypto attr definitions out of crypto.h crypto: nx - Fix memcpy() over-reading in nonce crypto: hisilicon/sec - Fix spelling mistake "fallbcak" -> "fallback" crypto: sa2ul - Remove unused auth_len variable crypto: sl3516 - fix duplicated inclusion crypto: hisilicon/zip - adds the max shaper type rate crypto: hisilicon/hpre - adds the max shaper type rate crypto: hisilicon/sec - adds the max shaper type rate crypto: hisilicon/qm - supports to inquiry each function's QoS crypto: hisilicon/qm - add pf ping single vf function crypto: hisilicon/qm - merges the work initialization process into a single function crypto: hisilicon/qm - add the "alg_qos" file node crypto: hisilicon/qm - supports writing QoS int the host crypto: api - remove CRYPTOA_U32 and related functions ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media updates from Mauro Carvalho Chehab: - V4L2 core control API was split into separate files - New RC maps: tango and tc-90405 - Hantro driver got support for G2/HEVC decoder - av7710 is moving to staging, together with some legacy APIs - several cleanups related to compat_ioctl32 code - Move the MPEG-2 stateless control type out of staging - Address several issues with RPM get logic on media drivers - Lots of cleanups, bug fixes and improvements. * tag 'media/v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits) media: s5p-mfc: Fix display delay control creation media: mtk-vpu: on suspend, read/write regs only if vpu is running media: video-mux: Skip dangling endpoints media: Fix Media Controller API config checks media: i2c: rdacm20: Re-work ov10635 reset media: i2c: rdacm20: Check return values media: i2c: rdacm20: Report camera module name media: i2c: rdacm20: Enable noise immunity media: i2c: rdacm20: Embed 'serializer' field media: i2c: rdacm21: Power up OV10640 before OV490 media: i2c: rdacm21: Fix OV10640 powerup media: i2c: rdacm21: Add delay after OV490 reset media: i2c: max9271: Introduce wake_up() function media: i2c: max9271: Check max9271_write() return media: i2c: max9286: Rework comments in .bound() media: i2c: max9286: Define high channel amplitude media: i2c: max9286: Cache channel amplitude media: i2c: max9286: Rename reverse_channel_mv media: i2c: max9286: Adjust parameters indent media: hantro: add support for Rockchip RK3036 ...
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm updates from Paolo Bonzini: "This covers all architectures (except MIPS) so I don't expect any other feature pull requests this merge window. ARM: - Add MTE support in guests, complete with tag save/restore interface - Reduce the impact of CMOs by moving them in the page-table code - Allow device block mappings at stage-2 - Reduce the footprint of the vmemmap in protected mode - Support the vGIC on dumb systems such as the Apple M1 - Add selftest infrastructure to support multiple configuration and apply that to PMU/non-PMU setups - Add selftests for the debug architecture - The usual crop of PMU fixes PPC: - Support for the H_RPT_INVALIDATE hypercall - Conversion of Book3S entry/exit to C - Bug fixes S390: - new HW facilities for guests - make inline assembly more robust with KASAN and co x86: - Allow userspace to handle emulation errors (unknown instructions) - Lazy allocation of the rmap (host physical -> guest physical address) - Support for virtualizing TSC scaling on VMX machines - Optimizations to avoid shattering huge pages at the beginning of live migration - Support for initializing the PDPTRs without loading them from memory - Many TLB flushing cleanups - Refuse to load if two-stage paging is available but NX is not (this has been a requirement in practice for over a year) - A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from CR0/CR4/EFER, using the MMU mode everywhere once it is computed from the CPU registers - Use PM notifier to notify the guest about host suspend or hibernate - Support for passing arguments to Hyper-V hypercalls using XMM registers - Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap on AMD processors - Hide Hyper-V hypercalls that are not included in the guest CPUID - Fixes for live migration of virtual machines that use the Hyper-V "enlightened VMCS" optimization of nested virtualization - Bugfixes (not many) Generic: - Support for retrieving statistics without debugfs - Cleanups for the KVM selftests API" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (314 commits) KVM: x86: rename apic_access_page_done to apic_access_memslot_enabled kvm: x86: disable the narrow guest module parameter on unload selftests: kvm: Allows userspace to handle emulation errors. kvm: x86: Allow userspace to handle emulation errors KVM: x86/mmu: Let guest use GBPAGES if supported in hardware and TDP is on KVM: x86/mmu: Get CR4.SMEP from MMU, not vCPU, in shadow page fault KVM: x86/mmu: Get CR0.WP from MMU, not vCPU, in shadow page fault KVM: x86/mmu: Drop redundant rsvd bits reset for nested NPT KVM: x86/mmu: Optimize and clean up so called "last nonleaf level" logic KVM: x86: Enhance comments for MMU roles and nested transition trickiness KVM: x86/mmu: WARN on any reserved SPTE value when making a valid SPTE KVM: x86/mmu: Add helpers to do full reserved SPTE checks w/ generic MMU KVM: x86/mmu: Use MMU's role to determine PTTYPE KVM: x86/mmu: Collapse 32-bit PAE and 64-bit statements for helpers KVM: x86/mmu: Add a helper to calculate root from role_regs KVM: x86/mmu: Add helper to update paging metadata KVM: x86/mmu: Don't update nested guest's paging bitmasks if CR0.PG=0 KVM: x86/mmu: Consolidate reset_rsvds_bits_mask() calls KVM: x86/mmu: Use MMU role_regs to get LA57, and drop vCPU LA57 helper KVM: x86/mmu: Get nested MMU's root level from the MMU's role ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 updates from Will Deacon: "There's a reasonable amount here and the juicy details are all below. It's worth noting that the MTE/KASAN changes strayed outside of our usual directories due to core mm changes and some associated changes to some other architectures; Andrew asked for us to carry these [1] rather that take them via the -mm tree. Summary: - Optimise SVE switching for CPUs with 128-bit implementations. - Fix output format from SVE selftest. - Add support for versions v1.2 and 1.3 of the SMC calling convention. - Allow Pointer Authentication to be configured independently for kernel and userspace. - PMU driver cleanups for managing IRQ affinity and exposing event attributes via sysfs. - KASAN optimisations for both hardware tagging (MTE) and out-of-line software tagging implementations. - Relax frame record alignment requirements to facilitate 8-byte alignment with KASAN and Clang. - Cleanup of page-table definitions and removal of unused memory types. - Reduction of ARCH_DMA_MINALIGN back to 64 bytes. - Refactoring of our instruction decoding routines and addition of some missing encodings. - Move entry code moved into C and hardened against harmful compiler instrumentation. - Update booting requirements for the FEAT_HCX feature, added to v8.7 of the architecture. - Fix resume from idle when pNMI is being used. - Additional CPU sanity checks for MTE and preparatory changes for systems where not all of the CPUs support 32-bit EL0. - Update our kernel string routines to the latest Cortex Strings implementation. - Big cleanup of our cache maintenance routines, which were confusingly named and inconsistent in their implementations. - Tweak linker flags so that GDB can understand vmlinux when using RELR relocations. - Boot path cleanups to enable early initialisation of per-cpu operations needed by KCSAN. - Non-critical fixes and miscellaneous cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (150 commits) arm64: tlb: fix the TTL value of tlb_get_level arm64: Restrict undef hook for cpufeature registers arm64/mm: Rename ARM64_SWAPPER_USES_SECTION_MAPS arm64: insn: avoid circular include dependency arm64: smp: Bump debugging information print down to KERN_DEBUG drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe() perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number arm64: suspend: Use cpuidle context helpers in cpu_suspend() PSCI: Use cpuidle context helpers in psci_cpu_suspend_enter() arm64: Convert cpu_do_idle() to using cpuidle context helpers arm64: Add cpuidle context save/restore helpers arm64: head: fix code comments in set_cpu_boot_mode_flag arm64: mm: drop unused __pa(__idmap_text_start) arm64: mm: fix the count comments in compute_indices arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan arm64: mm: Pass original fault address to handle_mm_fault() arm64/mm: Drop SECTION_[SHIFT|SIZE|MASK] arm64/mm: Use CONT_PMD_SHIFT for ARM64_MEMSTART_SHIFT arm64/mm: Drop SWAPPER_INIT_MAP_SIZE arm64: Conditionally configure PTR_AUTH key of the kernel. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68kLinus Torvalds authored
Pull m68k updates from Geert Uytterhoeven: - update Finn's email address in MAINTAINERS - defconfig updates - minor fixes and improvements * tag 'm68k-for-v5.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning m68k: defconfig: Update defconfigs for v5.13-rc1 MAINTAINERS, .mailmap: Update Finn Thain's email address m68k: dma: Remove unnecessary include of asm/cacheflush.h m68k: Drop -fno-strength-reduce from KBUILD_CFLAGS
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 splitlock updates from Ingo Molnar: - Add the "ratelimit:N" parameter to the split_lock_detect= boot option, to rate-limit the generation of bus-lock exceptions. This is both easier on system resources and kinder to offending applications than the current policy of outright killing them. - Document the split-lock detection feature and its parameters. * tag 'x86-splitlock-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation/x86: Add ratelimit in buslock.rst Documentation/admin-guide: Add bus lock ratelimit x86/bus_lock: Set rate limit for bus lock Documentation/x86: Add buslock.rst
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 mm update from Ingo Molnar: "Do not create the x86/init_pkru debugfs file if the CPU doesn't support PKRU" * tag 'x86-mm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pkeys: Skip 'init_pkru' debugfs file creation when pkeys not supported
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 uapi fixlet from Ingo Molnar: "Fix the <uapi/asm/hwcap2.h> UAPI header to build in user-space too" * tag 'x86-misc-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/elf: Use _BITUL() macro in UAPI headers
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cleanups from Ingo Molnar: "Misc cleanups & removal of obsolete code" * tag 'x86-cleanups-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sgx: Correct kernel-doc's arg name in sgx_encl_release() doc: Remove references to IBM Calgary x86/setup: Document that Windows reserves the first MiB x86/crash: Remove crash_reserve_low_1M() x86/setup: Remove CONFIG_X86_RESERVE_LOW and reservelow= options x86/alternative: Align insn bytes vertically x86: Fix leftover comment typos x86/asm: Simplify __smp_mb() definition x86/alternatives: Make the x86nops[] symbol static
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 resource control documentation fixes from Ingo Molnar: "Fix Docbook comments in the x86/resctrl code" * tag 'x86-cache-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Fix kernel-doc in internal.h x86/resctrl: Fix kernel-doc in pseudo_lock.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 boot update from Ingo Molnar: "Modernize the genimage.sh script, add a 'hdimage' target and EFI support" * tag 'x86-boot-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Modernize genimage script; hdimage+EFI support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 asm updates from Ingo Molnar: - Micro-optimize and standardize the do_syscall_64() calling convention - Make syscall entry flags clearing more conservative - Clean up syscall table handling - Clean up & standardize assembly macros, in preparation of FRED - Misc cleanups and fixes * tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Make <asm/asm.h> valid on cross-builds as well x86/regs: Syscall_get_nr() returns -1 for a non-system call x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros x86/syscall: Maximize MSR_SYSCALL_MASK x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[] x86/entry: Reverse arguments to do_syscall_64() x86/entry: Unify definitions from <asm/calling.h> and <asm/ptrace-abi.h> x86/asm: Use _ASM_BYTES() in <asm/nops.h> x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence x86/asm: Have the __ASM_FORM macros handle commas in arguments
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Kees Cook authored
Instead of depending on "sysctl" being installed, just use "grep -H" for sysctl status reporting. Additionally report kernel version for easier comparisons. Signed-off-by: Kees Cook <keescook@chromium.org>
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Kees Cook authored
When running the seccomp benchmark under a test runner, it wouldn't provide any feedback on progress. Set stdout unbuffered. Suggested-by: Will Drewry <wad@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org>
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Kees Cook authored
Since the open fds might not always start at "4" (especially when running under kselftest, etc), start counting from the first assigned fd, rather than using the more permissive EXPECT_GE(fd, 0). Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/lkml/20210527032948.3730953-1-keescook@chromium.orgReviewed-by: Rodrigo Campos <rodrigo@kinvolk.io> Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
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Rodrigo Campos authored
This just adds a test to verify that when using the new introduced flag to ADDFD, a valid fd is added and returned as the syscall result. Signed-off-by: Rodrigo Campos <rodrigo@kinvolk.io> Signed-off-by: Sargun Dhillon <sargun@sargun.me> Acked-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210517193908.3113-5-sargun@sargun.me
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Rodrigo Campos authored
Alban Crequy reported a race condition userspace faces when we want to add some fds and make the syscall return them[1] using seccomp notify. The problem is that currently two different ioctl() calls are needed by the process handling the syscalls (agent) for another userspace process (target): SECCOMP_IOCTL_NOTIF_ADDFD to allocate the fd and SECCOMP_IOCTL_NOTIF_SEND to return that value. Therefore, it is possible for the agent to do the first ioctl to add a file descriptor but the target is interrupted (EINTR) before the agent does the second ioctl() call. This patch adds a flag to the ADDFD ioctl() so it adds the fd and returns that value atomically to the target program, as suggested by Kees Cook[2]. This is done by simply allowing seccomp_do_user_notification() to add the fd and return it in this case. Therefore, in this case the target wakes up from the wait in seccomp_do_user_notification() either to interrupt the syscall or to add the fd and return it. This "allocate an fd and return" functionality is useful for syscalls that return a file descriptor only, like connect(2). Other syscalls that return a file descriptor but not as return value (or return more than one fd), like socketpair(), pipe(), recvmsg with SCM_RIGHTs, will not work with this flag. This effectively combines SECCOMP_IOCTL_NOTIF_ADDFD and SECCOMP_IOCTL_NOTIF_SEND into an atomic opteration. The notification's return value, nor error can be set by the user. Upon successful invocation of the SECCOMP_IOCTL_NOTIF_ADDFD ioctl with the SECCOMP_ADDFD_FLAG_SEND flag, the notifying process's errno will be 0, and the return value will be the file descriptor number that was installed. [1]: https://lore.kernel.org/lkml/CADZs7q4sw71iNHmV8EOOXhUKJMORPzF7thraxZYddTZsxta-KQ@mail.gmail.com/ [2]: https://lore.kernel.org/lkml/202012011322.26DCBC64F2@keescook/Signed-off-by: Rodrigo Campos <rodrigo@kinvolk.io> Signed-off-by: Sargun Dhillon <sargun@sargun.me> Acked-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210517193908.3113-4-sargun@sargun.me
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 exception handling updates from Ingo Molnar: - Clean up & simplify AP exception handling setup. - Consolidate the disjoint IDT setup code living in idt_setup_traps() and idt_setup_ist_traps() into a single idt_setup_traps() initialization function and call it before cpu_init(). * tag 'x86-apic-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/idt: Rework IDT setup for boot CPU x86/cpu: Init AP exception handling from cpu_init_secondary()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timers/nohz updates from Ingo Molnar: - Micro-optimize tick_nohz_full_cpu() - Optimize idle exit tick restarts to be less eager - Optimize tick_nohz_dep_set_task() to only wake up a single CPU. This reduces IPIs and interruptions on nohz_full CPUs. - Optimize tick_nohz_dep_set_signal() in a similar fashion. - Skip IPIs in tick_nohz_kick_task() when trying to kick a non-running task. - Micro-optimize tick_nohz_task_switch() IRQ flags handling to reduce context switching costs. - Misc cleanups and fixes * tag 'timers-nohz-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Add myself as context tracking maintainer tick/nohz: Call tick_nohz_task_switch() with interrupts disabled tick/nohz: Kick only _queued_ task whose tick dependency is updated tick/nohz: Change signal tick dependency to wake up CPUs of member tasks tick/nohz: Only wake up a single target cpu when kicking a task tick/nohz: Update nohz_full Kconfig help tick/nohz: Update idle_exittime on actual idle exit tick/nohz: Remove superflous check for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE tick/nohz: Conditionally restart tick on idle exit tick/nohz: Evaluate the CPU expression after the static key
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler udpates from Ingo Molnar: - Changes to core scheduling facilities: - Add "Core Scheduling" via CONFIG_SCHED_CORE=y, which enables coordinated scheduling across SMT siblings. This is a much requested feature for cloud computing platforms, to allow the flexible utilization of SMT siblings, without exposing untrusted domains to information leaks & side channels, plus to ensure more deterministic computing performance on SMT systems used by heterogenous workloads. There are new prctls to set core scheduling groups, which allows more flexible management of workloads that can share siblings. - Fix task->state access anti-patterns that may result in missed wakeups and rename it to ->__state in the process to catch new abuses. - Load-balancing changes: - Tweak newidle_balance for fair-sched, to improve 'memcache'-like workloads. - "Age" (decay) average idle time, to better track & improve workloads such as 'tbench'. - Fix & improve energy-aware (EAS) balancing logic & metrics. - Fix & improve the uclamp metrics. - Fix task migration (taskset) corner case on !CONFIG_CPUSET. - Fix RT and deadline utilization tracking across policy changes - Introduce a "burstable" CFS controller via cgroups, which allows bursty CPU-bound workloads to borrow a bit against their future quota to improve overall latencies & batching. Can be tweaked via /sys/fs/cgroup/cpu/<X>/cpu.cfs_burst_us. - Rework assymetric topology/capacity detection & handling. - Scheduler statistics & tooling: - Disable delayacct by default, but add a sysctl to enable it at runtime if tooling needs it. Use static keys and other optimizations to make it more palatable. - Use sched_clock() in delayacct, instead of ktime_get_ns(). - Misc cleanups and fixes. * tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits) sched/doc: Update the CPU capacity asymmetry bits sched/topology: Rework CPU capacity asymmetry detection sched/core: Introduce SD_ASYM_CPUCAPACITY_FULL sched_domain flag psi: Fix race between psi_trigger_create/destroy sched/fair: Introduce the burstable CFS controller sched/uclamp: Fix uclamp_tg_restrict() sched/rt: Fix Deadline utilization tracking during policy change sched/rt: Fix RT utilization tracking during policy change sched: Change task_struct::state sched,arch: Remove unused TASK_STATE offsets sched,timer: Use __set_current_state() sched: Add get_current_state() sched,perf,kvm: Fix preemption condition sched: Introduce task_is_running() sched: Unbreak wakeups sched/fair: Age the average idle time sched/cpufreq: Consider reduced CPU capacity in energy calculation sched/fair: Take thermal pressure into account while estimating energy thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure sched/fair: Return early from update_tg_cfs_load() if delta == 0 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf events updates from Ingo Molnar: - Platform PMU driver updates: - x86 Intel uncore driver updates for Skylake (SNR) and Icelake (ICX) servers - Fix RDPMC support - Fix [extended-]PEBS-via-PT support - Fix Sapphire Rapids event constraints - Fix :ppp support on Sapphire Rapids - Fix fixed counter sanity check on Alder Lake & X86_FEATURE_HYBRID_CPU - Other heterogenous-PMU fixes - Kprobes: - Remove the unused and misguided kprobe::fault_handler callbacks. - Warn about kprobes taking a page fault. - Fix the 'nmissed' stat counter. - Misc cleanups and fixes. * tag 'perf-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix task context PMU for Hetero perf/x86/intel: Fix instructions:ppp support in Sapphire Rapids perf/x86/intel: Add more events requires FRONTEND MSR on Sapphire Rapids perf/x86/intel: Fix fixed counter check warning for some Alder Lake perf/x86/intel: Fix PEBS-via-PT reload base value for Extended PEBS perf/x86: Reset the dirty counter to prevent the leak for an RDPMC task kprobes: Do not increment probe miss count in the fault handler x86,kprobes: WARN if kprobes tries to handle a fault kprobes: Remove kprobe::fault_handler uprobes: Update uprobe_write_opcode() kernel-doc comment perf/hw_breakpoint: Fix DocBook warnings in perf hw_breakpoint perf/core: Fix DocBook warnings perf/core: Make local function perf_pmu_snapshot_aux() static perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on ICX perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on SNR perf/x86/intel/uncore: Generalize I/O stacks to PMON mapping procedure perf/x86/intel/uncore: Drop unnecessary NULL checks after container_of()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking updates from Ingo Molnar: - Core locking & atomics: - Convert all architectures to ARCH_ATOMIC: move every architecture to ARCH_ATOMIC, then get rid of ARCH_ATOMIC and all the transitory facilities and #ifdefs. Much reduction in complexity from that series: 63 files changed, 756 insertions(+), 4094 deletions(-) - Self-test enhancements - Futexes: - Add the new FUTEX_LOCK_PI2 ABI, which is a variant that doesn't set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC). [ The temptation to repurpose FUTEX_LOCK_PI's implicit setting of FLAGS_CLOCKRT & invert the flag's meaning to avoid having to introduce a new variant was resisted successfully. ] - Enhance futex self-tests - Lockdep: - Fix dependency path printouts - Optimize trace saving - Broaden & fix wait-context checks - Misc cleanups and fixes. * tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) locking/lockdep: Correct the description error for check_redundant() futex: Provide FUTEX_LOCK_PI2 to support clock selection futex: Prepare futex_lock_pi() for runtime clock selection lockdep/selftest: Remove wait-type RCU_CALLBACK tests lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING lockdep: Fix wait-type for empty stack locking/selftests: Add a selftest for check_irq_usage() lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() locking/lockdep: Remove the unnecessary trace saving locking/lockdep: Fix the dep path printing for backwards BFS selftests: futex: Add futex compare requeue test selftests: futex: Add futex wait test seqlock: Remove trailing semicolon in macros locking/lockdep: Reduce LOCKDEP dependency list locking/lockdep,doc: Improve readability of the block matrix locking/atomics: atomic-instrumented: simplify ifdeffery locking/atomic: delete !ARCH_ATOMIC remnants locking/atomic: xtensa: move to ARCH_ATOMIC locking/atomic: sparc: move to ARCH_ATOMIC locking/atomic: sh: move to ARCH_ATOMIC ...
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Linus Torvalds authored
Merge tags 'objtool-urgent-2021-06-28' and 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fix and updates from Ingo Molnar: "An ELF format fix for a section flags mismatch bug that breaks kernel tooling such as kpatch-build. The biggest change in this cycle is the new code to handle and rewrite variable sized jump labels - which results in slightly tighter code generation in hot paths, through the use of short(er) NOPs. Also a number of cleanups and fixes, and a change to the generic include/linux/compiler.h to handle a s390 GCC quirk" * tag 'objtool-urgent-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Don't make .altinstructions writable * tag 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Improve reloc hash size guestimate instrumentation.h: Avoid using inline asm operand modifiers compiler.h: Avoid using inline asm operand modifiers kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n' objtool: Reflow handle_jump_alt() jump_label/x86: Remove unused JUMP_LABEL_NOP_SIZE jump_label, x86: Allow short NOPs objtool: Provide stats for jump_labels objtool: Rewrite jump_label instructions objtool: Decode jump_entry::key addend jump_label, x86: Emit short JMP jump_label: Free jump_entry::key bit1 for build use jump_label, x86: Add variable length patching support jump_label, x86: Introduce jump_entry_size() jump_label, x86: Improve error when we fail expected text jump_label, x86: Factor out the __jump_table generation jump_label, x86: Strip ASM jump_label support x86, objtool: Dont exclude arch/x86/realmode/ objtool: Rewrite hashtable sizing
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull EFI updates from Ingo Molnar: "Two driver API cleanups, and a log message tweak" * tag 'efi-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Log 32/64-bit mismatch with kernel as an error efi/dev-path-parser: Switch to use for_each_acpi_dev_match() efi/apple-properties: Handle device properties with software node API
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 SEV updates from Borislav Petkov: - Differentiate the type of exception the #VC handler raises depending on code executed in the guest and handle the case where failure to get the RIP would result in a #GP, as it should, instead of in a #PF - Disable interrupts while the per-CPU GHCB is held - Split the #VC handler depending on where the #VC exception has happened and therefore provide for precise context tracking like the rest of the exception handlers deal with noinstr regions now - Add defines for the GHCB version 2 protocol so that further shared development with KVM can happen without merge conflicts - The usual small cleanups * tag 'x86_sev_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sev: Use "SEV: " prefix for messages from sev.c x86/sev: Add defines for GHCB version 2 MSR protocol requests x86/sev: Split up runtime #VC handler for correct state tracking x86/sev: Make sure IRQs are disabled while GHCB is active x86/sev: Propagate #GP if getting linear instruction address failed x86/insn: Extend error reporting from insn_fetch_from_user[_inatomic]() x86/insn-eval: Make 0 a valid RIP for insn_get_effective_ip() x86/sev: Fix error message in runtime #VC handler
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 cpu updates from Borislav Petkov: - New AMD models support - Allow MONITOR/MWAIT to be used for C1 state entry on Hygon too - Use the special RAPL CPUID bit to detect the functionality on AMD and Hygon instead of doing family matching. - Add support for new Intel microcode deprecating TSX on some models and do not enable kernel workarounds for those CPUs when TSX transactions always abort, as a result of that microcode update. * tag 'x86_cpu_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsx: Clear CPUID bits when TSX always force aborts x86/events/intel: Do not deploy TSX force abort workaround when TSX is deprecated x86/msr: Define new bits in TSX_FORCE_ABORT MSR perf/x86/rapl: Use CPUID bit on AMD and Hygon parts x86/cstate: Allow ACPI C1 FFH MWAIT use on Hygon systems x86/amd_nb: Add AMD family 19h model 50h PCI ids x86/cpu: Fix core name for Sapphire Rapids
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 RAS updates from Borislav Petkov: - Add the required information to the faked APEI-reported mem error so that the kernel properly attempts to offline the corresponding page, as it does for kernel-detected correctable errors. - Fix a typo in AMD's error descriptions. * tag 'ras_core_for_v5.14_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: EDAC/mce_amd: Fix typo "FIfo" -> "Fifo" x86/mce: Include a MCi_MISC value in faked mce logs x86/MCE/AMD, EDAC/mce_amd: Add new SMCA bank types
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds authored
Pull hwmon updates from Guenter Roeck: "New drivers: - Delta DPS920AB - Flex PIM4006, PIM4328 and PIM4820 - MPS MP2888 - Sensirion SHT4X Added chip support to existing drivers: - Flex BMR310, BMR456, BMR457, BMR458, BMR480, BMR490, BMR491, and BMR492 - TI TMP1075 - Renesas ZLS1003, ZLS4009 and ZL8802 Other: - Dropped explicit ACPI support for MAX31722 and LM70; the APIC IDs in those drivers do not exist. - Support set_trips() callback into thermal subsystem - Minor fixes and improvements in various drivers" * tag 'hwmon-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (49 commits) hwmon: Support set_trips() of thermal device ops hwmon: (lm90) Prevent integer underflows of temperature calculations hwmon: (lm90) Disable interrupt on suspend hwmon: (lm90) Unmask hardware interrupt hwmon: (lm90) Use hwmon_notify_event() hwmon: (lm90) Don't override interrupt trigger type hwmon: (pmbus/dps920ab) Delete some dead code hwmon: (ntc_thermistor) Drop unused headers. MAINTAINERS: Add Delta DPS920AB PSU driver dt-bindings: trivial-devices: Add Delta DPS920AB hwmon: (pmbus) Add driver for Delta DPS-920AB PSU hwmon: (pmbus/pim4328) Add documentation for the pim4328 PMBus driver hwmon: (pmbus/pim4328) Add PMBus driver for PIM4006, PIM4328 and PIM4820 hwmon: (pmbus) Allow phase function even if it's not on page hwmon: (pmbus) Add support for reading direct mode coefficients hwmon: (pmbus) Add new pmbus flag NO_WRITE_PROTECT docs: hwmon: adm1177.rst: avoid using ReSt :doc:`foo` markup hwmon: (pmbus_core) Check adapter PEC support hwmon: (ina3221) use CVRF only for single-shot conversion hwmon: (max31790) Detect and report zero fan speed ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi updates from Mark Brown: "The biggest single thing in the diffstat here is a massive overhaul of the PXA2xx driver from Andy Shevchenko (the IP is still in use on modern Intel systems), though we also have quite a lot of core work as well: - Better support for mixing native and GPIO chip selects also from Andy. - Support for devices with multiple chip selects from Sebastian Reichel. - Helper for polling status registers in spi-mem from Patrice Chotard. - Support for Renesas RZ/N1 and Rockchip RV1126" * tag 'spi-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (86 commits) spi: core: add dma_map_dev for dma device spi: convert Xilinx Zynq UltraScale+ MPSoC GQSPI bindings to YAML spi: Fix self assignment issue with ancillary->mode spi: spi-sh-msiof: : use proper DMAENGINE API for termination spi: spi-rspi: : use proper DMAENGINE API for termination spi: spi-rockchip: add description for rv1126 spi: rockchip: Support SPI_CS_HIGH spi: rockchip: Support cs-gpio spi: rockchip: Wait for STB status in slave mode tx_xfer spi: rockchip: Set rx_fifo interrupt waterline base on transfer item spi: rockchip: add compatible string for rv1126 spi: spi-sun6i: Fix chipselect/clock bug spi: dt-bindings: support devices with multiple chipselects spi: add ancillary device support spi: xilinx: convert to yaml spi: convert Cadence SPI bindings to YAML spi: stm32-qspi: Remove unused qspi field of struct stm32_qspi_flash spi: add of_device_uevent_modalias support spi: meson-spicc: fix memory leak in meson_spicc_probe spi: meson-spicc: fix a wrong goto jump for avoiding memory leak. ...
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