1. 09 Jan, 2024 33 commits
    • Linus Torvalds's avatar
      Merge tag 'spi-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · 30194002
      Linus Torvalds authored
      Pull spi updates from Mark Brown:
       "A moderately busy release for SPI, the main core update was the
        merging of support for multiple chip selects, used in some flash
        configurations. There were also big overhauls for the AXI SPI Engine
        and PL022 drivers, plus some new device support for ST.
      
        There's a few patches for other trees, API updates to allow the
        multiple chip select support and one of the naming modernisations
        touched a controller embedded in the USB code.
      
         - Support for multiple chip selects.
      
         - A big overhaul for the AXI SPI engine driver, modernising it and
           adding a bunch of new features.
      
         - Modernisation of the PL022 driver, fixing some issues with
           submitting messages while in atomic context in the process.
      
         - Many drivers were converted to use new APIs which avoid outdated
           terminology for devices and controllers.
      
         - Support for ST Microelectronics STM32F7 and STM32MP25, and Renesas
           RZ/Five"
      
      * tag 'spi-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (83 commits)
        spi: stm32: add st,stm32mp25-spi compatible supporting STM32MP25 soc
        dt-bindings: spi: stm32: add st,stm32mp25-spi compatible
        spi: stm32: use dma_get_slave_caps prior to configuring dma channel
        spi: axi-spi-engine: fix struct member doc warnings
        spi: pl022: update description of internal_cs_control()
        spi: pl022: delete description of cur_msg
        spi: dw: Remove Intel Thunder Bay SOC support
        spi: dw: Remove Intel Thunder Bay SOC support
        spi: sh-msiof: Enforce fixed DTDL for R-Car H3
        spi: ljca: switch to use devm_spi_alloc_host()
        spi: cs42l43: switch to use devm_spi_alloc_host()
        spi: zynqmp-gqspi: switch to use modern name
        spi: zynq-qspi: switch to use modern name
        spi: xtensa-xtfpga: switch to use modern name
        spi: xlp: switch to use modern name
        spi: xilinx: switch to use modern name
        spi: xcomm: switch to use modern name
        spi: uniphier: switch to use modern name
        spi: topcliff-pch: switch to use modern name
        spi: wpcm-fiu: switch to use devm_spi_alloc_host()
        ...
      30194002
    • Linus Torvalds's avatar
      Merge tag 'regulator-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · da968017
      Linus Torvalds authored
      Pull regulator updates from Mark Brown:
       "The main updates for this release are around monitoring of regulators,
        largely for error handling purposes. We allow the stream of regulator
        events to be seen by userspace as netlink events and allow system
        integrators to describe individual regulators as system critical with
        information on how long the system is expected to last on error. The
        system level error handling is very much about best effort problem
        mitigation rather than providing something fully robust, the initial
        drive was to provide a mechanism for trying to avoid initiating any
        new writes to flash once we notice the power going out.
      
        Otherwise it's very quiet, mainly several new Qualcomm devices.
      
         - Support for marking regulators as system critical and providing
           information on how long the system might last with those regulators
           in a failure state, hooked into the existing critical shutdown
           error handling.
      
         - Optional support for generating netlink events for events, there
           are use cases for system monitoring UIs and error handling.
      
         - A command line option to leave unused controllable regulators
           enabled, useful for debugging. We already only disable regulators
           we were explicitly given permission to control.
      
         - Support for Quacomm MP5496, PM8010 and PM8937"
      
      * tag 'regulator-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (31 commits)
        regulator: event: Ensure atomicity for sequence number
        uapi: regulator: Fix typo
        regulator: Reuse LINEAR_RANGE() in REGULATOR_LINEAR_RANGE()
        dt-bindings: regulator: qcom,usb-vbus-regulator: clean up example
        regulator: qcom_smd: Add LDO5 MP5496 regulator
        regulator: qcom-rpmh: add support for pm8010 regulators
        regulator: dt-bindings: qcom,rpmh: add compatible for pm8010
        regulator: qcom-rpmh: extend to support multiple linear voltage ranges
        regulator: wm8350: Convert to platform remove callback returning void
        regulator: virtual: Convert to platform remove callback returning void
        regulator: userspace-consumer: Convert to platform remove callback returning void
        regulator: uniphier: Convert to platform remove callback returning void
        regulator: stm32-vrefbuf: Convert to platform remove callback returning void
        regulator: db8500-prcmu: Convert to platform remove callback returning void
        regulator: bd9571mwv: Convert to platform remove callback returning void
        regulator: arizona-ldo1: Convert to platform remove callback returning void
        regulator: event: Add regulator netlink event support
        regulator: event: Add regulator netlink event support
        regulator: stpmic1: Fix kernel-doc notation warnings
        regulator: palmas: remove redundant initialization of pointer pdata
        ...
      da968017
    • Linus Torvalds's avatar
      Merge tag 'regmap-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · 83130ff4
      Linus Torvalds authored
      Pull regmap updates from Mark Brown:
       "This was a very quiet release for regmap, we added kunit test coverage
        for a noinc fix that was merged during v6.7 and a couple of other
        trivial cleanups"
      
      * tag 'regmap-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        regmap: fix kcalloc() arguments order
        regmap: fix regmap_noinc_write() description
        regmap: kunit: add noinc write test
        regmap: ram: support noinc semantics
      83130ff4
    • Linus Torvalds's avatar
      Merge tag 'integrity-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity · 6c1dd1fe
      Linus Torvalds authored
      Pull integrity updates from Mimi Zohar:
      
       - Add a new IMA/EVM maintainer and reviewer
      
       - Disable EVM on overlayfs
      
         The EVM HMAC and the original file signatures contain filesystem
         specific metadata (e.g. i_ino, i_generation and s_uuid), preventing
         the security.evm xattr from directly being copied up to the overlay.
         Further before calculating and writing out the overlay file's EVM
         HMAC, EVM must first verify the existing backing file's
         'security.evm' value.
      
         For now until a solution is developed, disable EVM on overlayfs.
      
       - One bug fix and two cleanups
      
      * tag 'integrity-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
        overlay: disable EVM
        evm: add support to disable EVM on unsupported filesystems
        evm: don't copy up 'security.evm' xattr
        MAINTAINERS: Add Eric Snowberg as a reviewer to IMA
        MAINTAINERS: Add Roberto Sassu as co-maintainer to IMA and EVM
        KEYS: encrypted: Add check for strsep
        ima: Remove EXPERIMENTAL from Kconfig
        ima: Reword IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY
      6c1dd1fe
    • Linus Torvalds's avatar
      Merge tag 'landlock-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux · e9b4c589
      Linus Torvalds authored
      Pull Landlock updates from Mickaël Salaün:
       "New tests, a slight optimization, and some cosmetic changes"
      
      * tag 'landlock-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
        landlock: Optimize the number of calls to get_access_mask slightly
        selftests/landlock: Rename "permitted" to "allowed" in ftruncate tests
        landlock: Remove remaining "inline" modifiers in .c files [v6.6]
        landlock: Remove remaining "inline" modifiers in .c files [v6.1]
        landlock: Remove remaining "inline" modifiers in .c files [v5.15]
        selftests/landlock: Add tests to check unhandled rule's access rights
        selftests/landlock: Add tests to check unknown rule's access rights
      e9b4c589
    • Linus Torvalds's avatar
      Merge tag 'lsm-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm · 063a7ce3
      Linus Torvalds authored
      Pull security module updates from Paul Moore:
      
       - Add three new syscalls: lsm_list_modules(), lsm_get_self_attr(), and
         lsm_set_self_attr().
      
         The first syscall simply lists the LSMs enabled, while the second and
         third get and set the current process' LSM attributes. Yes, these
         syscalls may provide similar functionality to what can be found under
         /proc or /sys, but they were designed to support multiple,
         simultaneaous (stacked) LSMs from the start as opposed to the current
         /proc based solutions which were created at a time when only one LSM
         was allowed to be active at a given time.
      
         We have spent considerable time discussing ways to extend the
         existing /proc interfaces to support multiple, simultaneaous LSMs and
         even our best ideas have been far too ugly to support as a kernel
         API; after +20 years in the kernel, I felt the LSM layer had
         established itself enough to justify a handful of syscalls.
      
         Support amongst the individual LSM developers has been nearly
         unanimous, with a single objection coming from Tetsuo (TOMOYO) as he
         is worried that the LSM_ID_XXX token concept will make it more
         difficult for out-of-tree LSMs to survive. Several members of the LSM
         community have demonstrated the ability for out-of-tree LSMs to
         continue to exist by picking high/unused LSM_ID values as well as
         pointing out that many kernel APIs rely on integer identifiers, e.g.
         syscalls (!), but unfortunately Tetsuo's objections remain.
      
         My personal opinion is that while I have no interest in penalizing
         out-of-tree LSMs, I'm not going to penalize in-tree development to
         support out-of-tree development, and I view this as a necessary step
         forward to support the push for expanded LSM stacking and reduce our
         reliance on /proc and /sys which has occassionally been problematic
         for some container users. Finally, we have included the linux-api
         folks on (all?) recent revisions of the patchset and addressed all of
         their concerns.
      
       - Add a new security_file_ioctl_compat() LSM hook to handle the 32-bit
         ioctls on 64-bit systems problem.
      
         This patch includes support for all of the existing LSMs which
         provide ioctl hooks, although it turns out only SELinux actually
         cares about the individual ioctls. It is worth noting that while
         Casey (Smack) and Tetsuo (TOMOYO) did not give explicit ACKs to this
         patch, they did both indicate they are okay with the changes.
      
       - Fix a potential memory leak in the CALIPSO code when IPv6 is disabled
         at boot.
      
         While it's good that we are fixing this, I doubt this is something
         users are seeing in the wild as you need to both disable IPv6 and
         then attempt to configure IPv6 labeled networking via
         NetLabel/CALIPSO; that just doesn't make much sense.
      
         Normally this would go through netdev, but Jakub asked me to take
         this patch and of all the trees I maintain, the LSM tree seemed like
         the best fit.
      
       - Update the LSM MAINTAINERS entry with additional information about
         our process docs, patchwork, bug reporting, etc.
      
         I also noticed that the Lockdown LSM is missing a dedicated
         MAINTAINERS entry so I've added that to the pull request. I've been
         working with one of the major Lockdown authors/contributors to see if
         they are willing to step up and assume a Lockdown maintainer role;
         hopefully that will happen soon, but in the meantime I'll continue to
         look after it.
      
       - Add a handful of mailmap entries for Serge Hallyn and myself.
      
      * tag 'lsm-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (27 commits)
        lsm: new security_file_ioctl_compat() hook
        lsm: Add a __counted_by() annotation to lsm_ctx.ctx
        calipso: fix memory leak in netlbl_calipso_add_pass()
        selftests: remove the LSM_ID_IMA check in lsm/lsm_list_modules_test
        MAINTAINERS: add an entry for the lockdown LSM
        MAINTAINERS: update the LSM entry
        mailmap: add entries for Serge Hallyn's dead accounts
        mailmap: update/replace my old email addresses
        lsm: mark the lsm_id variables are marked as static
        lsm: convert security_setselfattr() to use memdup_user()
        lsm: align based on pointer length in lsm_fill_user_ctx()
        lsm: consolidate buffer size handling into lsm_fill_user_ctx()
        lsm: correct error codes in security_getselfattr()
        lsm: cleanup the size counters in security_getselfattr()
        lsm: don't yet account for IMA in LSM_CONFIG_COUNT calculation
        lsm: drop LSM_ID_IMA
        LSM: selftests for Linux Security Module syscalls
        SELinux: Add selfattr hooks
        AppArmor: Add selfattr hooks
        Smack: implement setselfattr and getselfattr hooks
        ...
      063a7ce3
    • Linus Torvalds's avatar
      Merge tag 'selinux-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux · 9f9310bf
      Linus Torvalds authored
      Pull selinux updates from Paul Moore:
      
       - Add a new SELinux initial SID, SECINITSID_INIT, to represent
         userspace processes started before the SELinux policy is loaded in
         early boot.
      
         Prior to this patch all processes were marked as SECINITSID_KERNEL
         before the SELinux policy was loaded, making it difficult to
         distinquish early boot userspace processes from the kernel in the
         SELinux policy.
      
         For most users this will be a non-issue as the policy is loaded early
         enough during boot, but for users who load their SELinux policy
         relatively late, this should make it easier to construct meaningful
         security policies.
      
       - Cleanups to the selinuxfs code by Al, mostly on VFS related issues
         during a policy reload.
      
         The commit description has more detail, but the quick summary is that
         we are replacing a disconnected directory approach with a temporary
         directory that we swapover at the end of the reload.
      
       - Fix an issue where the input sanity checking on socket bind()
         operations was slightly different depending on the presence of
         SELinux.
      
         This is caused by the placement of the LSM hooks in the generic
         socket layer as opposed to the protocol specific bind() handler where
         the protocol specific sanity checks are performed. Mickaël has
         mentioned that he is working to fix this, but in the meantime we just
         ensure that we are replicating the checks properly.
      
         We need to balance the placement of the LSM hooks with the number of
         LSM hooks; pushing the hooks down into the protocol layers is likely
         not the right answer.
      
       - Update the avc_has_perm_noaudit() prototype to better match the
         function definition.
      
       - Migrate from using partial_name_hash() to full_name_hash() the
         filename transition hash table.
      
         This improves the quality of the code and has the potential for a
         minor performance bump.
      
       - Consolidate some open coded SELinux access vector comparisions into a
         single new function, avtab_node_cmp(), and use that instead.
      
         A small, but nice win for code quality and maintainability.
      
       - Updated the SELinux MAINTAINERS entry with additional information
         around process, bug reporting, etc.
      
         We're also updating some of our "official" roles: dropping Eric Paris
         and adding Ondrej as a reviewer.
      
       - Cleanup the coding style crimes in security/selinux/include.
      
         While I'm not a fan of code churn, I am pushing for more automated
         code checks that can be done at the developer level and one of the
         obvious things to check for is coding style.
      
         In an effort to start from a "good" base I'm slowly working through
         our source files cleaning them up with the help of clang-format and
         good ol' fashioned human eyeballs; this has the first batch of these
         changes.
      
         I've been splitting the changes up per-file to help reduce the impact
         if backports are required (either for LTS or distro kernels), and I
         expect the some of the larger files, e.g. hooks.c and ss/services.c,
         will likely need to be split even further.
      
       - Cleanup old, outdated comments.
      
      * tag 'selinux-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (24 commits)
        selinux: Fix error priority for bind with AF_UNSPEC on PF_INET6 socket
        selinux: fix style issues in security/selinux/include/initial_sid_to_string.h
        selinux: fix style issues in security/selinux/include/xfrm.h
        selinux: fix style issues in security/selinux/include/security.h
        selinux: fix style issues with security/selinux/include/policycap_names.h
        selinux: fix style issues in security/selinux/include/policycap.h
        selinux: fix style issues in security/selinux/include/objsec.h
        selinux: fix style issues with security/selinux/include/netlabel.h
        selinux: fix style issues in security/selinux/include/netif.h
        selinux: fix style issues in security/selinux/include/ima.h
        selinux: fix style issues in security/selinux/include/conditional.h
        selinux: fix style issues in security/selinux/include/classmap.h
        selinux: fix style issues in security/selinux/include/avc_ss.h
        selinux: align avc_has_perm_noaudit() prototype with definition
        selinux: fix style issues in security/selinux/include/avc.h
        selinux: fix style issues in security/selinux/include/audit.h
        MAINTAINERS: drop Eric Paris from his SELinux role
        MAINTAINERS: add Ondrej Mosnacek as a SELinux reviewer
        selinux: remove the wrong comment about multithreaded process handling
        selinux: introduce an initial SID for early boot processes
        ...
      9f9310bf
    • Linus Torvalds's avatar
      Merge tag 'audit-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit · eab23bc8
      Linus Torvalds authored
      Pull audit updates from Paul Moore:
       "The audit updates are fairly minor with only two patches:
      
         - Send an audit ACK to userspace immediately upon receiving an auditd
           registration event as opposed to waiting until the registration has
           been fully processed and the audit backlog starts filling the
           netlink buffers.
      
           Sending the ACK earlier, as done here, is still safe as the
           operation should not fail at the point when the ACK is done, and
           doing so helps avoid the ACK being dropped in extreme situations.
      
         - Update the audit MAINTAINERS entry with additional information.
      
           There isn't anything in this update that should be new to regular
           contributors or list subscribers, but I'm pushing to start
           documenting our processes, conventions, etc. and this seems like an
           important part of that"
      
      * tag 'audit-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
        MAINTAINERS: update the audit entry
        audit: Send netlink ACK before setting connection in auditd_set
      eab23bc8
    • Linus Torvalds's avatar
      Merge tag 'mm-nonmm-stable-2024-01-09-10-33' of... · 9f2a6352
      Linus Torvalds authored
      Merge tag 'mm-nonmm-stable-2024-01-09-10-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
      
      Pull non-MM updates from Andrew Morton:
       "Quite a lot of kexec work this time around. Many singleton patches in
        many places. The notable patch series are:
      
         - nilfs2 folio conversion from Matthew Wilcox in 'nilfs2: Folio
           conversions for file paths'.
      
         - Additional nilfs2 folio conversion from Ryusuke Konishi in 'nilfs2:
           Folio conversions for directory paths'.
      
         - IA64 remnant removal in Heiko Carstens's 'Remove unused code after
           IA-64 removal'.
      
         - Arnd Bergmann has enabled the -Wmissing-prototypes warning
           everywhere in 'Treewide: enable -Wmissing-prototypes'. This had
           some followup fixes:
      
            - Nathan Chancellor has cleaned up the hexagon build in the series
              'hexagon: Fix up instances of -Wmissing-prototypes'.
      
            - Nathan also addressed some s390 warnings in 's390: A couple of
              fixes for -Wmissing-prototypes'.
      
            - Arnd Bergmann addresses the same warnings for MIPS in his series
              'mips: address -Wmissing-prototypes warnings'.
      
         - Baoquan He has made kexec_file operate in a top-down-fitting manner
           similar to kexec_load in the series 'kexec_file: Load kernel at top
           of system RAM if required'
      
         - Baoquan He has also added the self-explanatory 'kexec_file: print
           out debugging message if required'.
      
         - Some checkstack maintenance work from Tiezhu Yang in the series
           'Modify some code about checkstack'.
      
         - Douglas Anderson has disentangled the watchdog code's logging when
           multiple reports are occurring simultaneously. The series is
           'watchdog: Better handling of concurrent lockups'.
      
         - Yuntao Wang has contributed some maintenance work on the crash code
           in 'crash: Some cleanups and fixes'"
      
      * tag 'mm-nonmm-stable-2024-01-09-10-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (157 commits)
        crash_core: fix and simplify the logic of crash_exclude_mem_range()
        x86/crash: use SZ_1M macro instead of hardcoded value
        x86/crash: remove the unused image parameter from prepare_elf_headers()
        kdump: remove redundant DEFAULT_CRASH_KERNEL_LOW_SIZE
        scripts/decode_stacktrace.sh: strip unexpected CR from lines
        watchdog: if panicking and we dumped everything, don't re-enable dumping
        watchdog/hardlockup: use printk_cpu_sync_get_irqsave() to serialize reporting
        watchdog/softlockup: use printk_cpu_sync_get_irqsave() to serialize reporting
        watchdog/hardlockup: adopt softlockup logic avoiding double-dumps
        kexec_core: fix the assignment to kimage->control_page
        x86/kexec: fix incorrect end address passed to kernel_ident_mapping_init()
        lib/trace_readwrite.c:: replace asm-generic/io with linux/io
        nilfs2: cpfile: fix some kernel-doc warnings
        stacktrace: fix kernel-doc typo
        scripts/checkstack.pl: fix no space expression between sp and offset
        x86/kexec: fix incorrect argument passed to kexec_dprintk()
        x86/kexec: use pr_err() instead of kexec_dprintk() when an error occurs
        nilfs2: add missing set_freezable() for freezable kthread
        kernel: relay: remove relay_file_splice_read dead code, doesn't work
        docs: submit-checklist: remove all of "make namespacecheck"
        ...
      9f2a6352
    • Linus Torvalds's avatar
      Merge tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm · fb46e22a
      Linus Torvalds authored
      Pull MM updates from Andrew Morton:
       "Many singleton patches against the MM code. The patch series which are
        included in this merge do the following:
      
         - Peng Zhang has done some mapletree maintainance work in the series
      
      	'maple_tree: add mt_free_one() and mt_attr() helpers'
      	'Some cleanups of maple tree'
      
         - In the series 'mm: use memmap_on_memory semantics for dax/kmem'
           Vishal Verma has altered the interworking between memory-hotplug
           and dax/kmem so that newly added 'device memory' can more easily
           have its memmap placed within that newly added memory.
      
         - Matthew Wilcox continues folio-related work (including a few fixes)
           in the patch series
      
      	'Add folio_zero_tail() and folio_fill_tail()'
      	'Make folio_start_writeback return void'
      	'Fix fault handler's handling of poisoned tail pages'
      	'Convert aops->error_remove_page to ->error_remove_folio'
      	'Finish two folio conversions'
      	'More swap folio conversions'
      
         - Kefeng Wang has also contributed folio-related work in the series
      
      	'mm: cleanup and use more folio in page fault'
      
         - Jim Cromie has improved the kmemleak reporting output in the series
           'tweak kmemleak report format'.
      
         - In the series 'stackdepot: allow evicting stack traces' Andrey
           Konovalov to permits clients (in this case KASAN) to cause eviction
           of no longer needed stack traces.
      
         - Charan Teja Kalla has fixed some accounting issues in the page
           allocator's atomic reserve calculations in the series 'mm:
           page_alloc: fixes for high atomic reserve caluculations'.
      
         - Dmitry Rokosov has added to the samples/ dorectory some sample code
           for a userspace memcg event listener application. See the series
           'samples: introduce cgroup events listeners'.
      
         - Some mapletree maintanance work from Liam Howlett in the series
           'maple_tree: iterator state changes'.
      
         - Nhat Pham has improved zswap's approach to writeback in the series
           'workload-specific and memory pressure-driven zswap writeback'.
      
         - DAMON/DAMOS feature and maintenance work from SeongJae Park in the
           series
      
      	'mm/damon: let users feed and tame/auto-tune DAMOS'
      	'selftests/damon: add Python-written DAMON functionality tests'
      	'mm/damon: misc updates for 6.8'
      
         - Yosry Ahmed has improved memcg's stats flushing in the series 'mm:
           memcg: subtree stats flushing and thresholds'.
      
         - In the series 'Multi-size THP for anonymous memory' Ryan Roberts
           has added a runtime opt-in feature to transparent hugepages which
           improves performance by allocating larger chunks of memory during
           anonymous page faults.
      
         - Matthew Wilcox has also contributed some cleanup and maintenance
           work against eh buffer_head code int he series 'More buffer_head
           cleanups'.
      
         - Suren Baghdasaryan has done work on Andrea Arcangeli's series
           'userfaultfd move option'. UFFDIO_MOVE permits userspace heap
           compaction algorithms to move userspace's pages around rather than
           UFFDIO_COPY'a alloc/copy/free.
      
         - Stefan Roesch has developed a 'KSM Advisor', in the series 'mm/ksm:
           Add ksm advisor'. This is a governor which tunes KSM's scanning
           aggressiveness in response to userspace's current needs.
      
         - Chengming Zhou has optimized zswap's temporary working memory use
           in the series 'mm/zswap: dstmem reuse optimizations and cleanups'.
      
         - Matthew Wilcox has performed some maintenance work on the writeback
           code, both code and within filesystems. The series is 'Clean up the
           writeback paths'.
      
         - Andrey Konovalov has optimized KASAN's handling of alloc and free
           stack traces for secondary-level allocators, in the series 'kasan:
           save mempool stack traces'.
      
         - Andrey also performed some KASAN maintenance work in the series
           'kasan: assorted clean-ups'.
      
         - David Hildenbrand has gone to town on the rmap code. Cleanups, more
           pte batching, folio conversions and more. See the series 'mm/rmap:
           interface overhaul'.
      
         - Kinsey Ho has contributed some maintenance work on the MGLRU code
           in the series 'mm/mglru: Kconfig cleanup'.
      
         - Matthew Wilcox has contributed lruvec page accounting code cleanups
           in the series 'Remove some lruvec page accounting functions'"
      
      * tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (361 commits)
        mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
        mm, treewide: introduce NR_PAGE_ORDERS
        selftests/mm: add separate UFFDIO_MOVE test for PMD splitting
        selftests/mm: skip test if application doesn't has root privileges
        selftests/mm: conform test to TAP format output
        selftests: mm: hugepage-mmap: conform to TAP format output
        selftests/mm: gup_test: conform test to TAP format output
        mm/selftests: hugepage-mremap: conform test to TAP format output
        mm/vmstat: move pgdemote_* out of CONFIG_NUMA_BALANCING
        mm: zsmalloc: return -ENOSPC rather than -EINVAL in zs_malloc while size is too large
        mm/memcontrol: remove __mod_lruvec_page_state()
        mm/khugepaged: use a folio more in collapse_file()
        slub: use a folio in __kmalloc_large_node
        slub: use folio APIs in free_large_kmalloc()
        slub: use alloc_pages_node() in alloc_slab_page()
        mm: remove inc/dec lruvec page state functions
        mm: ratelimit stat flush from workingset shrinker
        kasan: stop leaking stack trace handles
        mm/mglru: remove CONFIG_TRANSPARENT_HUGEPAGE
        mm/mglru: add dummy pmd_dirty()
        ...
      fb46e22a
    • Linus Torvalds's avatar
      Merge tag 'slab-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab · d30e51aa
      Linus Torvalds authored
      Pull slab updates from Vlastimil Babka:
      
       - SLUB: delayed freezing of CPU partial slabs (Chengming Zhou)
      
         Freezing is an operation involving double_cmpxchg() that makes a slab
         exclusive for a particular CPU. Chengming noticed that we use it also
         in situations where we are not yet installing the slab as the CPU
         slab, because freezing also indicates that the slab is not on the
         shared list. This results in redundant freeze/unfreeze operation and
         can be avoided by marking separately the shared list presence by
         reusing the PG_workingset flag.
      
         This approach neatly avoids the issues described in 9b1ea29b
         ("Revert "mm, slub: consider rest of partial list if acquire_slab()
         fails"") as we can now grab a slab from the shared list in a quick
         and guaranteed way without the cmpxchg_double() operation that
         amplifies the lock contention and can fail.
      
         As a result, lkp has reported 34.2% improvement of
         stress-ng.rawudp.ops_per_sec
      
       - SLAB removal and SLUB cleanups (Vlastimil Babka)
      
         The SLAB allocator has been deprecated since 6.5 and nobody has
         objected so far. We agreed at LSF/MM to wait until the next LTS,
         which is 6.6, so we should be good to go now.
      
         This doesn't yet erase all traces of SLAB outside of mm/ so some dead
         code, comments or documentation remain, and will be cleaned up
         gradually (some series are already in the works).
      
         Removing the choice of allocators has already allowed to simplify and
         optimize the code wiring up the kmalloc APIs to the SLUB
         implementation.
      
      * tag 'slab-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (34 commits)
        mm/slub: free KFENCE objects in slab_free_hook()
        mm/slub: handle bulk and single object freeing separately
        mm/slub: introduce __kmem_cache_free_bulk() without free hooks
        mm/slub: fix bulk alloc and free stats
        mm/slub: optimize free fast path code layout
        mm/slub: optimize alloc fastpath code layout
        mm/slub: remove slab_alloc() and __kmem_cache_alloc_lru() wrappers
        mm/slab: move kmalloc() functions from slab_common.c to slub.c
        mm/slab: move kmalloc_slab() to mm/slab.h
        mm/slab: move kfree() from slab_common.c to slub.c
        mm/slab: move struct kmem_cache_node from slab.h to slub.c
        mm/slab: move memcg related functions from slab.h to slub.c
        mm/slab: move pre/post-alloc hooks from slab.h to slub.c
        mm/slab: consolidate includes in the internal mm/slab.h
        mm/slab: move the rest of slub_def.h to mm/slab.h
        mm/slab: move struct kmem_cache_cpu declaration to slub.c
        mm/slab: remove mm/slab.c and slab_def.h
        mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs
        mm/slab: remove CONFIG_SLAB code from slab common code
        cpu/hotplug: remove CPUHP_SLAB_PREPARE hooks
        ...
      d30e51aa
    • Linus Torvalds's avatar
      Merge tag 'cgroup-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup · 9f8413c4
      Linus Torvalds authored
      Pull cgroup updates from Tejun Heo:
      
       - Yafang Shao added task_get_cgroup1() helper to enable a similar BPF
         helper so that BPF progs can be more useful on cgroup1 hierarchies.
         While cgroup1 is mostly in maintenance mode, this addition is very
         small while having an outsized usefulness for users who are still on
         cgroup1. Yafang also optimized root cgroup list access by making it
         RCU protected in the process.
      
       - Waiman Long optimized rstat operation leading to substantially lower
         and more consistent lock hold time while flushing the hierarchical
         statistics. As the lock can be acquired briefly in various hot paths,
         this reduction has cascading benefits.
      
       - Waiman also improved the quality of isolation for cpuset's isolated
         partitions. CPUs which are allocated to isolated partitions are now
         excluded from running unbound work items and cpu_is_isolated() test
         which is used by vmstat and memcg to reduce interference now includes
         cpuset isolated CPUs. While it isn't there yet, the hope is
         eventually reaching parity with the isolation level provided by the
         `isolcpus` boot param but in a dynamic manner.
      
      * tag 'cgroup-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
        cgroup: Move rcu_head up near the top of cgroup_root
        cgroup/cpuset: Include isolated cpuset CPUs in cpu_is_isolated() check
        cgroup: Avoid false cacheline sharing of read mostly rstat_cpu
        cgroup/rstat: Optimize cgroup_rstat_updated_list()
        cgroup: Fix documentation for cpu.idle
        cgroup/cpuset: Expose cpuset.cpus.isolated
        workqueue: Move workqueue_set_unbound_cpumask() and its helpers inside CONFIG_SYSFS
        cgroup/rstat: Reduce cpu_lock hold time in cgroup_rstat_flush_locked()
        cgroup/cpuset: Take isolated CPUs out of workqueue unbound cpumask
        cgroup/cpuset: Keep track of CPUs in isolated partitions
        selftests/cgroup: Minor code cleanup and reorganization of test_cpuset_prs.sh
        workqueue: Add workqueue_unbound_exclude_cpumask() to exclude CPUs from wq_unbound_cpumask
        selftests: cgroup: Fixes a typo in a comment
        cgroup: Add a new helper for cgroup1 hierarchy
        cgroup: Add annotation for holding namespace_sem in current_cgns_cgroup_from_root()
        cgroup: Eliminate the need for cgroup_mutex in proc_cgroup_show()
        cgroup: Make operations on the cgroup root_list RCU safe
        cgroup: Remove unnecessary list_empty()
      9f8413c4
    • Linus Torvalds's avatar
      Merge tag 'sched-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · bfe8eb3b
      Linus Torvalds authored
      Pull scheduler updates from Ingo Molnar:
       "Energy scheduling:
      
         - Consolidate how the max compute capacity is used in the scheduler
           and how we calculate the frequency for a level of utilization.
      
         - Rework interface between the scheduler and the schedutil governor
      
         - Simplify the util_est logic
      
        Deadline scheduler:
      
         - Work more towards reducing SCHED_DEADLINE starvation of low
           priority tasks (e.g., SCHED_OTHER) tasks when higher priority tasks
           monopolize CPU cycles, via the introduction of 'deadline servers'
           (nested/2-level scheduling).
      
           "Fair servers" to make use of this facility are not introduced yet.
      
        EEVDF:
      
         - Introduce O(1) fastpath for EEVDF task selection
      
        NUMA balancing:
      
         - Tune the NUMA-balancing vma scanning logic some more, to better
           distribute the probability of a particular vma getting scanned.
      
        Plus misc fixes, cleanups and updates"
      
      * tag 'sched-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
        sched/fair: Fix tg->load when offlining a CPU
        sched/fair: Remove unused 'next_buddy_marked' local variable in check_preempt_wakeup_fair()
        sched/fair: Use all little CPUs for CPU-bound workloads
        sched/fair: Simplify util_est
        sched/fair: Remove SCHED_FEAT(UTIL_EST_FASTUP, true)
        arm64/amu: Use capacity_ref_freq() to set AMU ratio
        cpufreq/cppc: Set the frequency used for computing the capacity
        cpufreq/cppc: Move and rename cppc_cpufreq_{perf_to_khz|khz_to_perf}()
        energy_model: Use a fixed reference frequency
        cpufreq/schedutil: Use a fixed reference frequency
        cpufreq: Use the fixed and coherent frequency for scaling capacity
        sched/topology: Add a new arch_scale_freq_ref() method
        freezer,sched: Clean saved_state when restoring it during thaw
        sched/fair: Update min_vruntime for reweight_entity() correctly
        sched/doc: Update documentation after renames and synchronize Chinese version
        sched/cpufreq: Rework iowait boost
        sched/cpufreq: Rework schedutil governor performance estimation
        sched/pelt: Avoid underestimation of task utilization
        sched/timers: Explain why idle task schedules out on remote timer enqueue
        sched/cpuidle: Comment about timers requirements VS idle handler
        ...
      bfe8eb3b
    • Linus Torvalds's avatar
      Merge tag 'perf-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · aac4de46
      Linus Torvalds authored
      Pull performance events updates from Ingo Molnar:
      
       - Add branch stack counters ABI extension to better capture the growing
         amount of information the PMU exposes via branch stack sampling.
         There's matching tooling support.
      
       - Fix race when creating the nr_addr_filters sysfs file
      
       - Add Intel Sierra Forest and Grand Ridge intel/cstate PMU support
      
       - Add Intel Granite Rapids, Sierra Forest and Grand Ridge uncore PMU
         support
      
       - Misc cleanups & fixes
      
      * tag 'perf-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86/intel/uncore: Factor out topology_gidnid_map()
        perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()
        perf/x86/amd: Reject branch stack for IBS events
        perf/x86/intel/uncore: Support Sierra Forest and Grand Ridge
        perf/x86/intel/uncore: Support IIO free-running counters on GNR
        perf/x86/intel/uncore: Support Granite Rapids
        perf/x86/uncore: Use u64 to replace unsigned for the uncore offsets array
        perf/x86/intel/uncore: Generic uncore_get_uncores and MMIO format of SPR
        perf: Fix the nr_addr_filters fix
        perf/x86/intel/cstate: Add Grand Ridge support
        perf/x86/intel/cstate: Add Sierra Forest support
        x86/smp: Export symbol cpu_clustergroup_mask()
        perf/x86/intel/cstate: Cleanup duplicate attr_groups
        perf/core: Fix narrow startup race when creating the perf nr_addr_filters sysfs file
        perf/x86/intel: Support branch counters logging
        perf/x86/intel: Reorganize attrs and is_visible
        perf: Add branch_sample_call_stack
        perf/x86: Add PERF_X86_EVENT_NEEDS_BRANCH_STACK flag
        perf: Add branch stack counters
      aac4de46
    • Linus Torvalds's avatar
      Merge tag 'irq-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0bdf0621
      Linus Torvalds authored
      Pull irq subsystem updates from Ingo Molnar:
      
       - Add support for the IA55 interrupt controller on RZ/G3S SoC's
      
       - Update/fix the Qualcom MPM Interrupt Controller driver's register
         enumeration within the somewhat exotic "RPM Message RAM" MMIO-mapped
         shared memory region that is used for other purposes as well
      
       - Clean up the Xtensa built-in Programmable Interrupt Controller driver
         (xtensa-pic) a bit
      
      * tag 'irq-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip/irq-xtensa-pic: Clean up
        irqchip/qcom-mpm: Support passing a slice of SRAM as reg space
        dt-bindings: interrupt-controller: mpm: Pass MSG RAM slice through phandle
        dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/G3S
        irqchip/renesas-rzg2l: Add support for suspend to RAM
        irqchip/renesas-rzg2l: Add macro to retrieve TITSR register offset based on register's index
        irqchip/renesas-rzg2l: Implement restriction when writing ISCR register
        irqchip/renesas-rzg2l: Document structure members
        irqchip/renesas-rzg2l: Align struct member names to tabs
        irqchip/renesas-rzg2l: Use tabs instead of spaces
      0bdf0621
    • Linus Torvalds's avatar
      Merge tag 'timers-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f24dc33f
      Linus Torvalds authored
      Pull timer subsystem updates from Ingo Molnar:
      
       - Various preparatory cleanups & enhancements of the timer-wheel code,
         in preparation for the WIP 'pull timers at expiry' timer migration
         model series (which will replace the current 'push timers at enqueue'
         migration model), by Anna-Maria Behnsen:
      
            - Update comments and clean up confusing variable names
      
            - Add debug check to warn about time travel
      
            - Improve/expand timer-wheel tracepoints
      
            - Optimize away unnecessary IPIs for deferrable timers
      
            - Restructure & clean up next_expiry_recalc()
      
            - Clean up forward_timer_base()
      
            - Introduce __forward_timer_base() and use it to simplify and
              micro-optimize get_next_timer_interrupt()
      
       - Restructure the get_next_timer_interrupt()'s idle logic for better
         readability and to enable a minor optimization.
      
       - Fix the nextevt calculation when no timers are pending
      
       - Fix the sysfs_get_uname() prototype declaration
      
      * tag 'timers-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        timers: Fix nextevt calculation when no timers are pending
        timers: Rework idle logic
        timers: Use already existing function for forwarding timer base
        timers: Split out forward timer base functionality
        timers: Clarify check in forward_timer_base()
        timers: Move store of next event into __next_timer_interrupt()
        timers: Do not IPI for deferrable timers
        tracing/timers: Add tracepoint for tracking timer base is_idle flag
        tracing/timers: Enhance timer_start tracepoint
        tick-sched: Warn when next tick seems to be in the past
        tick/sched: Cleanup confusing variables
        tick-sched: Fix function names in comments
        time: Make sysfs_get_uname() function visible in header
      f24dc33f
    • Linus Torvalds's avatar
      Merge tag 'smp-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 46a08b4d
      Linus Torvalds authored
      Pull CPU hotplug updates from Ingo Molnar:
      
       - Remove unused CPU hotplug states
      
       - Increase the number of dynamic CPU hotplug states
         from 30 to 40, because existing drivers can exhaust
         the allocation space
      
      * tag 'smp-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        cpu/hotplug: Increase the number of dynamic states
        cpu/hotplug: Remove unused CPU hotplug states
      46a08b4d
    • Linus Torvalds's avatar
      Merge tag 'core-entry-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cdc20228
      Linus Torvalds authored
      Pull generic syscall updates from Ingo Molnar:
       "Move various entry functions from kernel/entry/common.c to a header
        file, and always-inline them, to improve syscall entry performance
        on s390 by ~11%"
      
      * tag 'core-entry-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        entry: Move syscall_enter_from_user_mode() to header file
        entry: Move enter_from_user_mode() to header file
        entry: Move exit to usermode functions to header file
      cdc20228
    • Linus Torvalds's avatar
      Merge tag 'core-debugobjects-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ab9517fa
      Linus Torvalds authored
      Pull debugobject update from Ingo Molnar:
      
       - Make tracking object use more robust: it's not safe to access a
         tracking object after releasing the hashbucket lock. Create a
         persistent copy for debug printouts instead.
      
      * tag 'core-debugobjects-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        debugobjects: Stop accessing objects after releasing hash bucket lock
      ab9517fa
    • Linus Torvalds's avatar
      Merge tag 'objtool-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 669d089a
      Linus Torvalds authored
      Pull objtool fixlet from Ingo Molnar:
       "Address a GCC-14 warning: there's no real bug, but indeed the calloc
        order doesn't match the prototype.
      
        (Side note: we should really add zalloc() for such cases)"
      
      * tag 'objtool-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        objtool: Fix calloc call for new -Walloc-size
      669d089a
    • Linus Torvalds's avatar
      Merge tag 'locking-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6cbf5b31
      Linus Torvalds authored
      Pull locking updates from Ingo Molar:
       "Lock guards:
      
         - Use lock guards in the ptrace code
      
         - Introduce conditional guards to extend to conditional lock
           primitives like mutex_trylock()/mutex_lock_interruptible()/etc.
      
        lockdep:
      
         - Optimize 'struct lock_class' to be smaller
      
         - Update file patterns in MAINTAINERS
      
        mutexes:
      
         - Document mutex lifetime rules a bit more"
      
      * tag 'locking-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        locking/mutex: Clarify that mutex_unlock(), and most other sleeping locks, can still use the lock object after it's unlocked
        locking/mutex: Document that mutex_unlock() is non-atomic
        ptrace: Convert ptrace_attach() to use lock guards
        locking/lockdep: Slightly reorder 'struct lock_class' to save some memory
        MAINTAINERS: Add include/linux/lockdep*.h
        cleanup: Add conditional guard support
      6cbf5b31
    • Florian Fainelli's avatar
      arm64: Update __NR_compat_syscalls for statmount/listmount · f0a78b3e
      Florian Fainelli authored
      Commit d8b0f546 ("wire up syscalls for statmount/listmount") added
      two new system calls to arch/arm64/include/asm/unistd32.h but forgot to
      update the __NR_compat_syscalls number, thus causing the following build
      failures:
      
        arch/arm64/include/asm/unistd32.h:922:24: error: array index in initializer exceeds array bounds
          922 | #define __NR_statmount 457
              |                        ^~~
        arch/arm64/kernel/sys32.c:130:34: note: in definition of macro '__SYSCALL'
          130 | #define __SYSCALL(nr, sym)      [nr] = __arm64_##sym,
              |                                  ^~
      
      Bump up the number by two to accomodate for the new system calls added.
      
      Fixes: d8b0f546 ("wire up syscalls for statmount/listmount")
      Signed-off-by: default avatarFlorian Fainelli <florian.fainelli@broadcom.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      f0a78b3e
    • Linus Torvalds's avatar
      Merge tag 'x86-entry-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2fdbcf71
      Linus Torvalds authored
      Pull x86 entry updates from Ingo Molnar:
      
       - Optimize common_interrupt_return()
      
       - Harden the return-to-user code by making a CONFIG_DEBUG_ENTRY=y check
         unconditional & moving it closer to the IRET.
      
      * tag 'x86-entry-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/entry: Harden return-to-user
        x86/entry: Optimize common_interrupt_return()
      2fdbcf71
    • Linus Torvalds's avatar
      Merge tag 'x86-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 33677aef
      Linus Torvalds authored
      Pull x86 core updates from Ingo Molnar:
      
       - Add comments about the magic behind the shadow STI
         before MWAIT in __sti_mwait().
      
       - Fix possible unintended timer delays caused by a race
         in mwait_idle_with_hints().
      
      * tag 'x86-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Fix CPUIDLE_FLAG_IRQ_ENABLE leaking timer reprogram
        x86: Add a comment about the "magic" behind shadow sti before mwait
      33677aef
    • Linus Torvalds's avatar
      Merge tag 'x86-cleanups-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b51cc5d0
      Linus Torvalds authored
      Pull x86 cleanups from Ingo Molnar:
      
       - Change global variables to local
      
       - Add missing kernel-doc function parameter descriptions
      
       - Remove unused parameter from a macro
      
       - Remove obsolete Kconfig entry
      
       - Fix comments
      
       - Fix typos, mostly scripted, manually reviewed
      
      and a micro-optimization got misplaced as a cleanup:
      
       - Micro-optimize the asm code in secondary_startup_64_no_verify()
      
      * tag 'x86-cleanups-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        arch/x86: Fix typos
        x86/head_64: Use TESTB instead of TESTL in secondary_startup_64_no_verify()
        x86/docs: Remove reference to syscall trampoline in PTI
        x86/Kconfig: Remove obsolete config X86_32_SMP
        x86/io: Remove the unused 'bw' parameter from the BUILDIO() macro
        x86/mtrr: Document missing function parameters in kernel-doc
        x86/setup: Make relocated_ramdisk a local variable of relocate_initrd()
      b51cc5d0
    • Linus Torvalds's avatar
      Merge tag 'x86-build-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 42c371f8
      Linus Torvalds authored
      Pull x86 build updates from Ingo Molnar:
      
       - Update the objdump & instruction decoder self-test code for better
         LLVM toolchain compatibility
      
       - Rework CONFIG_X86_PAE dependencies, for better readability and higher
         robustness.
      
       - Misc cleanups
      
      * tag 'x86-build-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/tools: objdump_reformat.awk: Skip bad instructions from llvm-objdump
        x86/Kconfig: Rework CONFIG_X86_PAE dependency
        x86/tools: Remove chkobjdump.awk
        x86/tools: objdump_reformat.awk: Allow for spaces
        x86/tools: objdump_reformat.awk: Ensure regex matches fwait
      42c371f8
    • Linus Torvalds's avatar
      Merge tag 'x86-boot-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f73857ec
      Linus Torvalds authored
      Pull x86 boot updates from Ingo Molnar:
      
       - Ignore NMIs during very early boot, to address kexec crashes
      
       - Remove redundant initialization in boot/string.c's strcmp()
      
      * tag 'x86-boot-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot: Remove redundant initialization of the 'delta' variable in strcmp()
        x86/boot: Ignore NMIs during very early boot
      f73857ec
    • Linus Torvalds's avatar
      Merge tag 'x86-asm-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 106b88d7
      Linus Torvalds authored
      Pull x86 asm updates from Ingo Molnar:
       "Replace magic numbers in GDT descriptor definitions & handling:
      
         - Introduce symbolic names via macros for descriptor
           types/fields/flags, and then use these symbolic names.
      
         - Clean up definitions a bit, such as GDT_ENTRY_INIT()
      
         - Fix/clean up details that became visibly inconsistent after the
           symbol-based code was introduced:
      
            - Unify accessed flag handling
      
            - Set the D/B size flag consistently & according to the HW
              specification"
      
      * tag 'x86-asm-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/asm: Add DB flag to 32-bit percpu GDT entry
        x86/asm: Always set A (accessed) flag in GDT descriptors
        x86/asm: Replace magic numbers in GDT descriptors, script-generated change
        x86/asm: Replace magic numbers in GDT descriptors, preparations
        x86/asm: Provide new infrastructure for GDT descriptors
      106b88d7
    • Linus Torvalds's avatar
      Merge tag 'x86-apic-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 33034c4f
      Linus Torvalds authored
      Pull x86 apic updates from Ingo Molnar:
      
       - Clean up 'struct apic':
          - Drop ::delivery_mode
          - Drop 'enum apic_delivery_modes'
          - Drop 'struct local_apic'
      
       - Fix comments
      
      * tag 'x86-apic-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/ioapic: Remove unfinished sentence from comment
        x86/apic: Drop struct local_apic
        x86/apic: Drop enum apic_delivery_modes
        x86/apic: Drop apic::delivery_mode
      33034c4f
    • Linus Torvalds's avatar
      Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · ab5f3fcb
      Linus Torvalds authored
      Pull arm64 updates from Will Deacon:
       "CPU features:
      
         - Remove ARM64_HAS_NO_HW_PREFETCH copy_page() optimisation for ye
           olde Thunder-X machines
      
         - Avoid mapping KPTI trampoline when it is not required
      
         - Make CPU capability API more robust during early initialisation
      
        Early idreg overrides:
      
         - Remove dependencies on core kernel helpers from the early
           command-line parsing logic in preparation for moving this code
           before the kernel is mapped
      
        FPsimd:
      
         - Restore kernel-mode fpsimd context lazily, allowing us to run
           fpsimd code sequences in the kernel with pre-emption enabled
      
        KBuild:
      
         - Install 'vmlinuz.efi' when CONFIG_EFI_ZBOOT=y
      
         - Makefile cleanups
      
        LPA2 prep:
      
         - Preparatory work for enabling the 'LPA2' extension, which will
           introduce 52-bit virtual and physical addressing even with 4KiB
           pages (including for KVM guests).
      
        Misc:
      
         - Remove dead code and fix a typo
      
        MM:
      
         - Pass NUMA node information for IRQ stack allocations
      
        Perf:
      
         - Add perf support for the Synopsys DesignWare PCIe PMU
      
         - Add support for event counting thresholds (FEAT_PMUv3_TH)
           introduced in Armv8.8
      
         - Add support for i.MX8DXL SoCs to the IMX DDR PMU driver.
      
         - Minor PMU driver fixes and optimisations
      
        RIP VPIPT:
      
         - Remove what support we had for the obsolete VPIPT I-cache policy
      
        Selftests:
      
         - Improvements to the SVE and SME selftests
      
        Stacktrace:
      
         - Refactor kernel unwind logic so that it can used by BPF unwinding
           and, eventually, reliable backtracing
      
        Sysregs:
      
         - Update a bunch of register definitions based on the latest XML drop
           from Arm"
      
      * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (87 commits)
        kselftest/arm64: Don't probe the current VL for unsupported vector types
        efi/libstub: zboot: do not use $(shell ...) in cmd_copy_and_pad
        arm64: properly install vmlinuz.efi
        arm64/sysreg: Add missing system instruction definitions for FGT
        arm64/sysreg: Add missing system register definitions for FGT
        arm64/sysreg: Add missing ExtTrcBuff field definition to ID_AA64DFR0_EL1
        arm64/sysreg: Add missing Pauth_LR field definitions to ID_AA64ISAR1_EL1
        arm64: memory: remove duplicated include
        arm: perf: Fix ARCH=arm build with GCC
        arm64: Align boot cpucap handling with system cpucap handling
        arm64: Cleanup system cpucap handling
        MAINTAINERS: add maintainers for DesignWare PCIe PMU driver
        drivers/perf: add DesignWare PCIe PMU driver
        PCI: Move pci_clear_and_set_dword() helper to PCI header
        PCI: Add Alibaba Vendor ID to linux/pci_ids.h
        docs: perf: Add description for Synopsys DesignWare PCIe PMU driver
        arm64: irq: set the correct node for shadow call stack
        Revert "perf/arm_dmc620: Remove duplicate format attribute #defines"
        arm64: fpsimd: Implement lazy restore for kernel mode FPSIMD
        arm64: fpsimd: Preserve/restore kernel mode NEON at context switch
        ...
      ab5f3fcb
    • Linus Torvalds's avatar
      Merge tag 'm68k-for-v6.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k · 3cf1d6a5
      Linus Torvalds authored
      Pull m68k updates from Geert Uytterhoeven:
      
        - make the NuBus bus type static and constant
      
        - defconfig updates
      
      * tag 'm68k-for-v6.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
        m68k: defconfig: Update defconfigs for v6.7-rc1
        nubus: Make nubus_bus_type static and constant
      3cf1d6a5
    • Linus Torvalds's avatar
      Merge tag 'powerpc-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 968b8033
      Linus Torvalds authored
      Pull powerpc updates from Michael Ellerman:
      
       - Add initial support to recognise the HeXin C2000 processor.
      
       - Add papr-vpd and papr-sysparm character device drivers for VPD &
         sysparm retrieval, so userspace tools can be adapted to avoid doing
         raw firmware calls from userspace.
      
       - Sched domains optimisations for shared processor partitions on
         P9/P10.
      
       - A series of optimisations for KVM running as a nested HV under
         PowerVM.
      
       - Other small features and fixes.
      
      Thanks to Aditya Gupta, Aneesh Kumar K.V, Arnd Bergmann, Christophe
      Leroy, Colin Ian King, Dario Binacchi, David Heidelberg, Geoff Levand,
      Gustavo A. R. Silva, Haoran Liu, Jordan Niethe, Kajol Jain, Kevin Hao,
      Kunwu Chan, Li kunyu, Li zeming, Masahiro Yamada, Michal Suchánek,
      Nathan Lynch, Naveen N Rao, Nicholas Piggin, Randy Dunlap, Sathvika
      Vasireddy, Srikar Dronamraju, Stephen Rothwell, Vaibhav Jain, and
      Zhao Ke.
      
      * tag 'powerpc-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (96 commits)
        powerpc/ps3_defconfig: Disable PPC64_BIG_ENDIAN_ELF_ABI_V2
        powerpc/86xx: Drop unused CONFIG_MPC8610
        powerpc/powernv: Add error handling to opal_prd_range_is_valid
        selftests/powerpc: Fix spelling mistake "EACCESS" -> "EACCES"
        powerpc/hvcall: Reorder Nestedv2 hcall opcodes
        powerpc/ps3: Add missing set_freezable() for ps3_probe_thread()
        powerpc/mpc83xx: Use wait_event_freezable() for freezable kthread
        powerpc/mpc83xx: Add the missing set_freezable() for agent_thread_fn()
        powerpc/fsl: Fix fsl,tmu-calibration to match the schema
        powerpc/smp: Dynamically build Powerpc topology
        powerpc/smp: Avoid asym packing within thread_group of a core
        powerpc/smp: Add __ro_after_init attribute
        powerpc/smp: Disable MC domain for shared processor
        powerpc/smp: Enable Asym packing for cores on shared processor
        powerpc/sched: Cleanup vcpu_is_preempted()
        powerpc: add cpu_spec.cpu_features to vmcoreinfo
        powerpc/imc-pmu: Add a null pointer check in update_events_in_group()
        powerpc/powernv: Add a null pointer check in opal_powercap_init()
        powerpc/powernv: Add a null pointer check in opal_event_init()
        powerpc/powernv: Add a null pointer check to scom_debug_init_one()
        ...
      968b8033
    • Linus Torvalds's avatar
      Merge tag 'ras_core_for_v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3edbe8af
      Linus Torvalds authored
      Pull x86 RAS updates from Borislav Petkov:
      
       - Convert the hw error storm handling into a finer-grained, per-bank
         solution which allows for more timely detection and reporting of
         errors
      
       - Start a documentation section which will hold down relevant RAS
         features description and how they should be used
      
       - Add new AMD error bank types
      
       - Slim down and remove error type descriptions from the kernel side of
         error decoding to rasdaemon which can be used from now on to decode
         hw errors on AMD
      
       - Mark pages containing uncorrectable errors as poison so that kdump
         can avoid them and thus not cause another panic
      
       - The usual cleanups and fixlets
      
      * tag 'ras_core_for_v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mce: Handle Intel threshold interrupt storms
        x86/mce: Add per-bank CMCI storm mitigation
        x86/mce: Remove old CMCI storm mitigation code
        Documentation: Begin a RAS section
        x86/MCE/AMD: Add new MA_LLC, USR_DP, and USR_CP bank types
        EDAC/mce_amd: Remove SMCA Extended Error code descriptions
        x86/mce/amd, EDAC/mce_amd: Move long names to decoder module
        x86/mce/inject: Clear test status value
        x86/mce: Remove redundant check from mce_device_create()
        x86/mce: Mark fatal MCE's page as poison to avoid panic in the kdump kernel
      3edbe8af
  2. 08 Jan, 2024 7 commits