1. 30 Nov, 2019 4 commits
    • Linus Torvalds's avatar
      Merge tag 'vfs-5.5-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · f112a2fd
      Linus Torvalds authored
      Pull splice fix from Darrick Wong:
       "Fix another place in the splice code where a pipe could ask a
        filesystem for a longer read than the pipe actually has free buffer
        space"
      
      * tag 'vfs-5.5-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        splice: only read in as much information as there is pipe buffer space
      f112a2fd
    • Linus Torvalds's avatar
      Merge tag 'iomap-5.5-merge-11' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · 3b266a52
      Linus Torvalds authored
      Pull iomap updates from Darrick Wong:
       "In this release, we hoisted as much of XFS' writeback code into iomap
        as was practicable, refactored the unshare file data function, added
        the ability to perform buffered io copy on write, and tweaked various
        parts of the directio implementation as needed to port ext4's directio
        code (that will be a separate pull).
      
        Summary:
      
         - Make iomap_dio_rw callers explicitly tell us if they want us to
           wait
      
         - Port the xfs writeback code to iomap to complete the buffered io
           library functions
      
         - Refactor the unshare code to share common pieces
      
         - Add support for performing copy on write with buffered writes
      
         - Other minor fixes
      
         - Fix unchecked return in iomap_bmap
      
         - Fix a type casting bug in a ternary statement in
           iomap_dio_bio_actor
      
         - Improve tracepoints for easier diagnostic ability
      
         - Fix pipe page leakage in directio reads"
      
      * tag 'iomap-5.5-merge-11' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (31 commits)
        iomap: Fix pipe page leakage during splicing
        iomap: trace iomap_appply results
        iomap: fix return value of iomap_dio_bio_actor on 32bit systems
        iomap: iomap_bmap should check iomap_apply return value
        iomap: Fix overflow in iomap_page_mkwrite
        fs/iomap: remove redundant check in iomap_dio_rw()
        iomap: use a srcmap for a read-modify-write I/O
        iomap: renumber IOMAP_HOLE to 0
        iomap: use write_begin to read pages to unshare
        iomap: move the zeroing case out of iomap_read_page_sync
        iomap: ignore non-shared or non-data blocks in xfs_file_dirty
        iomap: always use AOP_FLAG_NOFS in iomap_write_begin
        iomap: remove the unused iomap argument to __iomap_write_end
        iomap: better document the IOMAP_F_* flags
        iomap: enhance writeback error message
        iomap: pass a struct page to iomap_finish_page_writeback
        iomap: cleanup iomap_ioend_compare
        iomap: move struct iomap_page out of iomap.h
        iomap: warn on inline maps in iomap_writepage_map
        iomap: lift the xfs writeback code to iomap
        ...
      3b266a52
    • Linus Torvalds's avatar
      Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma · aa32f116
      Linus Torvalds authored
      Pull hmm updates from Jason Gunthorpe:
       "This is another round of bug fixing and cleanup. This time the focus
        is on the driver pattern to use mmu notifiers to monitor a VA range.
        This code is lifted out of many drivers and hmm_mirror directly into
        the mmu_notifier core and written using the best ideas from all the
        driver implementations.
      
        This removes many bugs from the drivers and has a very pleasing
        diffstat. More drivers can still be converted, but that is for another
        cycle.
      
         - A shared branch with RDMA reworking the RDMA ODP implementation
      
         - New mmu_interval_notifier API. This is focused on the use case of
           monitoring a VA and simplifies the process for drivers
      
         - A common seq-count locking scheme built into the
           mmu_interval_notifier API usable by drivers that call
           get_user_pages() or hmm_range_fault() with the VA range
      
         - Conversion of mlx5 ODP, hfi1, radeon, nouveau, AMD GPU, and Xen
           GntDev drivers to the new API. This deletes a lot of wonky driver
           code.
      
         - Two improvements for hmm_range_fault(), from testing done by Ralph"
      
      * tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
        mm/hmm: remove hmm_range_dma_map and hmm_range_dma_unmap
        mm/hmm: make full use of walk_page_range()
        xen/gntdev: use mmu_interval_notifier_insert
        mm/hmm: remove hmm_mirror and related
        drm/amdgpu: Use mmu_interval_notifier instead of hmm_mirror
        drm/amdgpu: Use mmu_interval_insert instead of hmm_mirror
        drm/amdgpu: Call find_vma under mmap_sem
        nouveau: use mmu_interval_notifier instead of hmm_mirror
        nouveau: use mmu_notifier directly for invalidate_range_start
        drm/radeon: use mmu_interval_notifier_insert
        RDMA/hfi1: Use mmu_interval_notifier_insert for user_exp_rcv
        RDMA/odp: Use mmu_interval_notifier_insert()
        mm/hmm: define the pre-processor related parts of hmm.h even if disabled
        mm/hmm: allow hmm_range to be used with a mmu_interval_notifier or hmm_mirror
        mm/mmu_notifier: add an interval tree notifier
        mm/mmu_notifier: define the header pre-processor parts even if disabled
        mm/hmm: allow snapshot of the special zero page
      aa32f116
    • Linus Torvalds's avatar
      Merge tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm · d5bb349d
      Linus Torvalds authored
      Pull drm coherent memory support for vmwgfx from Dave Airlie:
       "This is a separate pull for the mm pagewalking + drm/vmwgfx work
        Thomas did and you were involved in, I've left it separate in case you
        don't feel as comfortable with it as the other stuff.
      
        It has mm acks/r-b in the right places from what I can see"
      
      * tag 'drm-vmwgfx-coherent-2019-11-29' of git://anongit.freedesktop.org/drm/drm:
        drm/vmwgfx: Add surface dirty-tracking callbacks
        drm/vmwgfx: Implement an infrastructure for read-coherent resources
        drm/vmwgfx: Use an RBtree instead of linked list for MOB resources
        drm/vmwgfx: Implement an infrastructure for write-coherent resources
        mm: Add write-protect and clean utilities for address space ranges
        mm: Add a walk_page_mapping() function to the pagewalk code
        mm: pagewalk: Take the pagetable lock in walk_pte_range()
        mm: Remove BUG_ON mmap_sem not held from xxx_trans_huge_lock()
        drm/ttm: Convert vm callbacks to helpers
        drm/ttm: Remove explicit typecasts of vm_private_data
      d5bb349d
  2. 28 Nov, 2019 6 commits
    • Linus Torvalds's avatar
      Merge branch 'master' of... · 81b6b964
      Linus Torvalds authored
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping
      
      Pull dma-mapping updates from Christoph Hellwig:
      
       - improve dma-debug scalability (Eric Dumazet)
      
       - tiny dma-debug cleanup (Dan Carpenter)
      
       - check for vmap memory in dma_map_single (Kees Cook)
      
       - check for dma_addr_t overflows in dma-direct when using DMA offsets
         (Nicolas Saenz Julienne)
      
       - switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas
         Saenz Julienne)
      
       - fix arm-nommu dma-ranges handling (Vladimir Murzin)
      
       - use __initdata in CMA (Shyam Saini)
      
       - replace the bus dma mask with a limit (Nicolas Saenz Julienne)
      
       - merge the remapping helpers into the main dma-direct flow (me)
      
       - switch xtensa to the generic dma remap handling (me)
      
       - various cleanups around dma_capable (me)
      
       - remove unused dev arguments to various dma-noncoherent helpers (me)
      
      * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux:
      
      * tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits)
        dma-mapping: treat dev->bus_dma_mask as a DMA limit
        dma-direct: exclude dma_direct_map_resource from the min_low_pfn check
        dma-direct: don't check swiotlb=force in dma_direct_map_resource
        dma-debug: clean up put_hash_bucket()
        powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys
        dma-direct: avoid a forward declaration for phys_to_dma
        dma-direct: unify the dma_capable definitions
        dma-mapping: drop the dev argument to arch_sync_dma_for_*
        x86/PCI: sta2x11: use default DMA address translation
        dma-direct: check for overflows on 32 bit DMA addresses
        dma-debug: increase HASH_SIZE
        dma-debug: reorder struct dma_debug_entry fields
        xtensa: use the generic uncached segment support
        dma-mapping: merge the generic remapping helpers into dma-direct
        dma-direct: provide mmap and get_sgtable method overrides
        dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages
        dma-direct: remove __dma_direct_free_pages
        usb: core: Remove redundant vmap checks
        kernel: dma-contiguous: mark CMA parameters __initdata/__initconst
        dma-debug: add a schedule point in debug_dma_dump_mappings()
        ...
      81b6b964
    • Linus Torvalds's avatar
      Merge tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap · a308a710
      Linus Torvalds authored
      Pull generic ioremap support from Christoph Hellwig:
       "This adds the remaining bits for an entirely generic ioremap and
        iounmap to lib/ioremap.c. To facilitate that, it cleans up the giant
        mess of weird ioremap variants we had with no users outside the arch
        code.
      
        For now just the three newest ports use the code, but there is more
        than a handful others that can be converted without too much work.
      
        Summary:
      
         - clean up various obsolete ioremap and iounmap variants
      
         - add a new generic ioremap implementation and switch csky, nds32 and
           riscv over to it"
      
      * tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap: (21 commits)
        nds32: use generic ioremap
        csky: use generic ioremap
        csky: remove ioremap_cache
        riscv: use the generic ioremap code
        lib: provide a simple generic ioremap implementation
        sh: remove __iounmap
        nios2: remove __iounmap
        hexagon: remove __iounmap
        m68k: rename __iounmap and mark it static
        arch: rely on asm-generic/io.h for default ioremap_* definitions
        asm-generic: don't provide ioremap for CONFIG_MMU
        asm-generic: ioremap_uc should behave the same with and without MMU
        xtensa: clean up ioremap
        x86: Clean up ioremap()
        parisc: remove __ioremap
        nios2: remove __ioremap
        alpha: remove the unused __ioremap wrapper
        hexagon: clean up ioremap
        ia64: rename ioremap_nocache to ioremap_uc
        unicore32: remove ioremap_cached
        ...
      a308a710
    • Linus Torvalds's avatar
      Merge tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block · 05bd375b
      Linus Torvalds authored
      Pull more io_uring updates from Jens Axboe:
       "As mentioned in the first pull request, there was a later batch as
        well. This contains fixes to the stuff that already went in, cleanups,
        and a few later additions. In particular, this contains:
      
         - Cleanups/fixes/unification of the submission and completion path
           (Pavel,me)
      
         - Linked timeouts improvements (Pavel,me)
      
         - Error path fixes (me)
      
         - Fix lookup window where cancellations wouldn't work (me)
      
         - Improve DRAIN support (Pavel)
      
         - Fix backlog flushing -EBUSY on submit (me)
      
         - Add support for connect(2) (me)
      
         - Fix for non-iter based fixed IO (Pavel)
      
         - creds inheritance for async workers (me)
      
         - Disable cmsg/ancillary data for sendmsg/recvmsg (me)
      
         - Shrink io_kiocb to 3 cachelines (me)
      
         - NUMA fix for io-wq (Jann)"
      
      * tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block: (42 commits)
        io_uring: make poll->wait dynamically allocated
        io-wq: shrink io_wq_work a bit
        io-wq: fix handling of NUMA node IDs
        io_uring: use kzalloc instead of kcalloc for single-element allocations
        io_uring: cleanup io_import_fixed()
        io_uring: inline struct sqe_submit
        io_uring: store timeout's sqe->off in proper place
        net: disallow ancillary data for __sys_{send,recv}msg_file()
        net: separate out the msghdr copy from ___sys_{send,recv}msg()
        io_uring: remove superfluous check for sqe->off in io_accept()
        io_uring: async workers should inherit the user creds
        io-wq: have io_wq_create() take a 'data' argument
        io_uring: fix dead-hung for non-iter fixed rw
        io_uring: add support for IORING_OP_CONNECT
        net: add __sys_connect_file() helper
        io_uring: only return -EBUSY for submit on non-flushed backlog
        io_uring: only !null ptr to io_issue_sqe()
        io_uring: simplify io_req_link_next()
        io_uring: pass only !null to io_req_find_next()
        io_uring: remove io_free_req_find_next()
        ...
      05bd375b
    • Dave Airlie's avatar
      Merge branch 'vmwgfx-coherent' of git://people.freedesktop.org/~thomash/linux into drm-next · 0a6cad5d
      Dave Airlie authored
      Graphics APIs like OpenGL 4.4 and Vulkan require the graphics driver
      to provide coherent graphics memory, meaning that the GPU sees any
      content written to the coherent memory on the next GPU operation that
      touches that memory, and the CPU sees any content written by the GPU
      to that memory immediately after any fence object trailing the GPU
      operation is signaled.
      
      Paravirtual drivers that otherwise require explicit synchronization
      needs to do this by hooking up dirty tracking to pagefault handlers
      and buffer object validation.
      
      Provide mm helpers needed for this and that also allow for huge pmd-
      and pud entries (patch 1-3), and the associated vmwgfx code (patch 4-7).
      
      The code has been tested and exercised by a tailored version of mesa
      where we disable all explicit synchronization and assume graphics memory
      is coherent. The performance loss varies of course; a typical number is
      around 5%.
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      From: Thomas Hellstrom <thomas_os@shipmail.org>
      Link: https://patchwork.freedesktop.org/patch/msgid/20191113131639.4653-1-thomas_os@shipmail.org
      0a6cad5d
    • Linus Torvalds's avatar
      Merge tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm · a6ed68d6
      Linus Torvalds authored
      Pull drm updates from Dave Airlie:
       "Lots of stuff in here, though it hasn't been too insane this merge
        apart from dealing with the security fun.
      
        uapi:
         - export different colorspace properties on DP vs HDMI
         - new fourcc for ARM 16x16 block format
         - syncobj: allow querying last submitted timeline value
         - DRM_FORMAT_BIG_ENDIAN defined as unsigned
      
        core:
         - allow using gem vma manager in ttm
         - connector/encoder/bridge doc fixes
         - allow more than 3 encoders for a connector
         - displayport mst suspend/resume reprobing support
         - vram lazy unmapping, uniform vram mm and gem vram
         - edid cleanups + AVI informframe bar info
         - displayport helpers - dpcd parser added
      
        dp_cec:
         - Allow a connector to be associated with a cec device
      
        ttm:
         - pipelining with no_gpu_wait fix
         - always keep BOs on the LRU
      
        sched:
         - allow free_job routine to sleep
      
        i915:
         - Block userptr from mappable GTT
         - i915 perf uapi versioning
         - OA stream dynamic reconfiguration
         - make context persistence optional
         - introduce DRM_I915_UNSTABLE Kconfig
         - add fake lmem testing under unstable
         - BT.2020 support for DP MSA
         - struct mutex elimination
         - Tigerlake display/PLL/power management improvements
         - Jasper Lake PCH support
         - refactor PMU for multiple GPUs
         - Icelake firmware update
         - Split out vga + switcheroo code
      
        amdgpu:
         - implement dma-buf import/export without helpers
         - vega20 RAS enablement
         - DC i2c over aux fixes
         - renoir GPU reset
         - DC HDCP support
         - BACO support for CI/VI asics
         - MSI-X support
         - Arcturus EEPROM support
         - Arcturus VCN encode support
         - VCN dynamic powergating on RV/RV2
      
        amdkfd:
         - add navi12/14/renoir support to kfd
      
        radeon:
         - SI dpm fix ported from amdgpu
         - fix bad DMA on ppc platforms
      
        gma500:
         - memory leak fixes
      
        qxl:
         - convert to new gem mmap
      
        exynos:
         - build warning fix
      
        komeda:
         - add aclk sysfs attribute
      
        v3d:
         - userspace cleanup uapi change
      
        i810:
         - fix for underflow in dispatch ioctls
      
        ast:
         - refactor show_cursor
      
        mgag200:
         - refactor show_cursor
      
        arcgpu:
         - encoder finding improvements
      
        mediatek:
         - mipi_tx, dsi and partial crtc support for MT8183 SoC
         - rotation support
      
        meson:
         - add suspend/resume support
      
        omap:
         - misc refactors
      
        tegra:
         - DisplayPort support for Tegra 210, 186 and 194.
         - IOMMU-backed DMA API fixes
      
        panfrost:
         - fix lockdep issue
         - simplify devfreq integration
      
        rcar-du:
         - R8A774B1 SoC support
         - fixes for H2 ES2.0
      
        sun4i:
         - vcc-dsi regulator support
      
        virtio-gpu:
         - vmexit vs spinlock fix
         - move to gem shmem helpers
         - handle large command buffers with cma"
      
      * tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm: (1855 commits)
        drm/amdgpu: invalidate mmhub semaphore workaround in gmc9/gmc10
        drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub
        drm/amd/amdgpu/sriov skip RLCG s/r list for arcturus VF.
        drm/amd/amdgpu/sriov temporarily skip ras,dtm,hdcp for arcturus VF
        drm/amdgpu/gfx10: re-init clear state buffer after gpu reset
        merge fix for "ftrace: Rework event_create_dir()"
        drm/amdgpu: Update Arcturus golden registers
        drm/amdgpu/gfx10: fix out-of-bound mqd_backup array access
        drm/amdgpu/gfx10: explicitly wait for cp idle after halt/unhalt
        Revert "drm/amd/display: enable S/G for RAVEN chip"
        drm/amdgpu: disable gfxoff on original raven
        drm/amdgpu: remove experimental flag for Navi14
        drm/amdgpu: disable gfxoff when using register read interface
        drm/amdgpu/powerplay: properly set PP_GFXOFF_MASK (v2)
        drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2
        drm/radeon: fix bad DMA from INTERRUPT_CNTL2
        drm/amd/display: Fix debugfs on MST connectors
        drm/amdgpu/nv: add asic func for fetching vbios from rom directly
        drm/amdgpu: put flush_delayed_work at first
        drm/amdgpu/vcn2.5: fix the enc loop with hw fini
        ...
      a6ed68d6
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 8c39f71e
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "This is mostly to fix the iwlwifi regression:
      
        1) Flush GRO state properly in iwlwifi driver, from Alexander Lobakin.
      
        2) Validate TIPC link name with properly length macro, from John
           Rutherford.
      
        3) Fix completion init and device query timeouts in ibmvnic, from
           Thomas Falcon.
      
        4) Fix SKB size calculation for netlink messages in psample, from
           Nikolay Aleksandrov.
      
        5) Similar kind of fix for OVS flow dumps, from Paolo Abeni.
      
        6) Handle queue allocation failure unwind properly in gve driver, we
           could try to release pages we didn't allocate. From Jeroen de
           Borst.
      
        7) Serialize TX queue SKB list accesses properly in mscc ocelot
           driver. From Yangbo Lu"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net:
        net: usb: aqc111: Use the correct style for SPDX License Identifier
        net: phy: Use the correct style for SPDX License Identifier
        net: wireless: intel: iwlwifi: fix GRO_NORMAL packet stalling
        net: mscc: ocelot: use skb queue instead of skbs list
        net: mscc: ocelot: avoid incorrect consuming in skbs list
        gve: Fix the queue page list allocated pages count
        net: inet_is_local_reserved_port() port arg should be unsigned short
        openvswitch: fix flow command message size
        net: phy: dp83869: Fix return paths to return proper values
        net: psample: fix skb_over_panic
        net: usbnet: Fix -Wcast-function-type
        net: hso: Fix -Wcast-function-type
        net: port < inet_prot_sock(net) --> inet_port_requires_bind_service(net, port)
        ibmvnic: Serialize device queries
        ibmvnic: Bound waits for device queries
        ibmvnic: Terminate waiting device threads after loss of service
        ibmvnic: Fix completion structure initialization
        net-sctp: replace some sock_net(sk) with just 'net'
        net: Fix a documentation bug wrt. ip_unprivileged_port_start
        tipc: fix link name length check
      8c39f71e
  3. 27 Nov, 2019 26 commits
    • Linus Torvalds's avatar
      Merge tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 95f1fa9e
      Linus Torvalds authored
      Pull tracing updates from Steven Rostedt:
       "New tracing features:
      
         - New PERMANENT flag to ftrace_ops when attaching a callback to a
           function.
      
           As /proc/sys/kernel/ftrace_enabled when set to zero will disable
           all attached callbacks in ftrace, this has a detrimental impact on
           live kernel tracing, as it disables all that it patched. If a
           ftrace_ops is registered to ftrace with the PERMANENT flag set, it
           will prevent ftrace_enabled from being disabled, and if
           ftrace_enabled is already disabled, it will prevent a ftrace_ops
           with PREMANENT flag set from being registered.
      
         - New register_ftrace_direct().
      
           As eBPF would like to register its own trampolines to be called by
           the ftrace nop locations directly, without going through the ftrace
           trampoline, this function has been added. This allows for eBPF
           trampolines to live along side of ftrace, perf, kprobe and live
           patching. It also utilizes the ftrace enabled_functions file that
           keeps track of functions that have been modified in the kernel, to
           allow for security auditing.
      
         - Allow for kernel internal use of ftrace instances.
      
           Subsystems in the kernel can now create and destroy their own
           tracing instances which allows them to have their own tracing
           buffer, and be able to record events without worrying about other
           users from writing over their data.
      
         - New seq_buf_hex_dump() that lets users use the hex_dump() in their
           seq_buf usage.
      
         - Notifications now added to tracing_max_latency to allow user space
           to know when a new max latency is hit by one of the latency
           tracers.
      
         - Wider spread use of generic compare operations for use of bsearch
           and friends.
      
         - More synthetic event fields may be defined (32 up from 16)
      
         - Use of xarray for architectures with sparse system calls, for the
           system call trace events.
      
        This along with small clean ups and fixes"
      
      * tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (51 commits)
        tracing: Enable syscall optimization for MIPS
        tracing: Use xarray for syscall trace events
        tracing: Sample module to demonstrate kernel access to Ftrace instances.
        tracing: Adding new functions for kernel access to Ftrace instances
        tracing: Fix Kconfig indentation
        ring-buffer: Fix typos in function ring_buffer_producer
        ftrace: Use BIT() macro
        ftrace: Return ENOTSUPP when DYNAMIC_FTRACE_WITH_DIRECT_CALLS is not configured
        ftrace: Rename ftrace_graph_stub to ftrace_stub_graph
        ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization
        ftrace: Add helper find_direct_entry() to consolidate code
        ftrace: Add another check for match in register_ftrace_direct()
        ftrace: Fix accounting bug with direct->count in register_ftrace_direct()
        ftrace/selftests: Fix spelling mistake "wakeing" -> "waking"
        tracing: Increase SYNTH_FIELDS_MAX for synthetic_events
        ftrace/samples: Add a sample module that implements modify_ftrace_direct()
        ftrace: Add modify_ftrace_direct()
        tracing: Add missing "inline" in stub function of latency_fsnotify()
        tracing: Remove stray tab in TRACE_EVAL_MAP_FILE's help text
        tracing: Use seq_buf_hex_dump() to dump buffers
        ...
      95f1fa9e
    • Linus Torvalds's avatar
      Merge tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze · 477093b3
      Linus Torvalds authored
      Pull Microblaze updates from Michal Simek:
      
       - extend DTB space
      
       - defconfig update
      
       - clean up rescheduling logic
      
       - enable SPARSE_IRQ
      
      * tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
        microblaze: Increase max dtb size to 64K from 32K
        microblaze: Enable SPARSE_IRQ
        microblaze: defconfig: Enable devtmps and tmpfs
        microblaze: entry: Remove unneeded need_resched() loop
      477093b3
    • Linus Torvalds's avatar
      Merge tag 'riscv/for-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 6a0e20cd
      Linus Torvalds authored
      Pull RISC-V updates from Paul Walmsley:
       "New features:
         - SECCOMP support
         - nommu support
         - SBI-less system support
         - M-Mode support
         - TLB flush optimizations
      
        Other improvements:
         - Pass the complete RISC-V ISA string supported by the CPU cores to
           userspace, rather than redacting parts of it in the kernel
         - Add platform DMA IP block data to the HiFive Unleashed board DT
           file
         - Add Makefile support for BZ2, LZ4, LZMA, LZO kernel image
           compression formats, in line with other architectures
      
        Cleanups:
         - Remove unnecessary PTE_PARENT_SIZE macro
         - Standardize include guard naming across arch/riscv"
      
      * tag 'riscv/for-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (22 commits)
        riscv: provide a flat image loader
        riscv: add nommu support
        riscv: clear the instruction cache and all registers when booting
        riscv: read the hart ID from mhartid on boot
        riscv: provide native clint access for M-mode
        riscv: dts: add support for PDMA device of HiFive Unleashed Rev A00
        riscv: add support for MMIO access to the timer registers
        riscv: implement remote sfence.i using IPIs
        riscv: cleanup the default power off implementation
        riscv: poison SBI calls for M-mode
        riscv: don't allow selecting SBI based drivers for M-mode
        RISC-V: Add multiple compression image format.
        riscv: clean up the macro format in each header file
        riscv: Use PMD_SIZE to replace PTE_PARENT_SIZE
        riscv: abstract out CSR names for supervisor vs machine mode
        riscv: separate MMIO functions into their own header file
        riscv: enter WFI in default_power_off() if SBI does not shutdown
        RISC-V: Issue a tlb page flush if possible
        RISC-V: Issue a local tlbflush if possible.
        RISC-V: Do not invoke SBI call if cpumask is empty
        ...
      6a0e20cd
    • Nishad Kamdar's avatar
      net: usb: aqc111: Use the correct style for SPDX License Identifier · bac139a8
      Nishad Kamdar authored
      This patch corrects the SPDX License Identifier style in
      header files related to drivers for USB Network devices.
      This patch gives an explicit block comment to the
      SPDX License Identifier.
      
      Changes made by using a script provided by Joe Perches here:
      https://lkml.org/lkml/2019/2/7/46.
      Suggested-by: default avatarJoe Perches <joe@perches.com>
      Signed-off-by: default avatarNishad Kamdar <nishadkamdar@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      bac139a8
    • Nishad Kamdar's avatar
      net: phy: Use the correct style for SPDX License Identifier · 9aab906a
      Nishad Kamdar authored
      This patch corrects the SPDX License Identifier style in
      header files related to PHY Layer for Ethernet drivers.
      For C header files Documentation/process/license-rules.rst
      mandates C-like comments (opposed to C source files where
      C++ style should be used). This patch also gives an explicit
      block comment to the SPDX License Identifier.
      
      Changes made by using a script provided by Joe Perches here:
      https://lkml.org/lkml/2019/2/7/46.
      Suggested-by: default avatarJoe Perches <joe@perches.com>
      Signed-off-by: default avatarNishad Kamdar <nishadkamdar@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9aab906a
    • Linus Torvalds's avatar
      Merge tag 'powerpc-spectre-rsb' of powerpc-CVE-2019-18660.bundle · 80eb5fea
      Linus Torvalds authored
      Pull powerpc Spectre-RSB fixes from Michael Ellerman:
       "We failed to activate the mitigation for Spectre-RSB (Return Stack
        Buffer, aka. ret2spec) on context switch, on CPUs prior to Power9
        DD2.3.
      
        That allows a process to poison the RSB (called Link Stack on Power
        CPUs) and possibly misdirect speculative execution of another process.
        If the victim process can be induced to execute a leak gadget then it
        may be possible to extract information from the victim via a side
        channel.
      
        The fix is to correctly activate the link stack flush mitigation on
        all CPUs that have any mitigation of Spectre v2 in userspace enabled.
      
        There's a second commit which adds a link stack flush in the KVM guest
        exit path. A leak via that path has not been demonstrated, but we
        believe it's at least theoretically possible.
      
        This is the fix for CVE-2019-18660"
      
      * tag 'powerpc-spectre-rsb' of /home/torvalds/Downloads/powerpc-CVE-2019-18660.bundle:
        KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel
        powerpc/book3s64: Fix link stack flush on context switch
      80eb5fea
    • Alexander Lobakin's avatar
      net: wireless: intel: iwlwifi: fix GRO_NORMAL packet stalling · b167191e
      Alexander Lobakin authored
      Commit 6570bc79 ("net: core: use listified Rx for GRO_NORMAL in
      napi_gro_receive()") has applied batched GRO_NORMAL packets processing
      to all napi_gro_receive() users, including mac80211-based drivers.
      
      However, this change has led to a regression in iwlwifi driver [1][2] as
      it is required for NAPI users to call napi_complete_done() or
      napi_complete() and the end of every polling iteration, whilst iwlwifi
      doesn't use NAPI scheduling at all and just calls napi_gro_flush().
      In that particular case, packets which have not been already flushed
      from napi->rx_list stall in it until at least next Rx cycle.
      
      Fix this by adding a manual flushing of the list to iwlwifi driver right
      before napi_gro_flush() call to mimic napi_complete() logics.
      
      I prefer to open-code gro_normal_list() rather than exporting it for 2
      reasons:
      * to prevent from using it and napi_gro_flush() in any new drivers,
        as it is the *really* bad way to use NAPI that should be avoided;
      * to keep gro_normal_list() static and don't lose any CC optimizations.
      
      I also don't add the "Fixes:" tag as the mentioned commit was only a
      trigger that only exposed an improper usage of NAPI in this particular
      driver.
      
      [1] https://lore.kernel.org/netdev/PSXP216MB04388962C411CD0B17A86F47804A0@PSXP216MB0438.KORP216.PROD.OUTLOOK.COM
      [2] https://bugzilla.kernel.org/show_bug.cgi?id=205647Signed-off-by: default avatarAlexander Lobakin <alobakin@dlink.ru>
      Acked-by: default avatarLuca Coelho <luciano.coelho@intel.com>
      Reported-by: default avatarNicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
      Tested-by: default avatarNicholas Johnson <nicholas.johnson-opensource@outlook.com.au>
      Reviewed-by: default avatarEdward Cree <ecree@solarflare.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b167191e
    • Linus Torvalds's avatar
      Merge tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core · 9a3d7fd2
      Linus Torvalds authored
      Pull driver core updates from Greg KH:
       "Here is the "big" set of driver core patches for 5.5-rc1
      
        There's a few minor cleanups and fixes in here, but the majority of
        the patches in here fall into two buckets:
      
         - debugfs api cleanups and fixes
      
         - driver core device link support for boot dependancy issues
      
        The debugfs api cleanups are working to slowly refactor the debugfs
        apis so that it is even harder to use incorrectly. That work has been
        happening for the past few kernel releases and will continue over
        time, it's a long-term project/goal
      
        The driver core device link support missed 5.4 by just a bit, so it's
        been sitting and baking for many months now. It's from Saravana Kannan
        to help resolve the problems that DT-based systems have at boot time
        with dependancy graphs and kernel modules. Turns out that no one has
        actually tried to build a generic arm64 kernel with loads of modules
        and have it "just work" for a variety of platforms (like a distro
        kernel). The big problem turned out to be a lack of dependency
        information between different areas of DT entries, and the work here
        resolves that problem and now allows devices to boot properly, and
        quicker than a monolith kernel.
      
        All of these patches have been in linux-next for a long time with no
        reported issues"
      
      * tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (68 commits)
        tracing: Remove unnecessary DEBUG_FS dependency
        of: property: Add device link support for interrupt-parent, dmas and -gpio(s)
        debugfs: Fix !DEBUG_FS debugfs_create_automount
        of: property: Add device link support for "iommu-map"
        of: property: Fix the semantics of of_is_ancestor_of()
        i2c: of: Populate fwnode in of_i2c_get_board_info()
        drivers: base: Fix Kconfig indentation
        firmware_loader: Fix labels with comma for builtin firmware
        driver core: Allow device link operations inside sync_state()
        driver core: platform: Declare ret variable only once
        cpu-topology: declare parse_acpi_topology in <linux/arch_topology.h>
        crypto: hisilicon: no need to check return value of debugfs_create functions
        driver core: platform: use the correct callback type for bus_find_device
        firmware_class: make firmware caching configurable
        driver core: Clarify documentation for fwnode_operations.add_links()
        mailbox: tegra: Fix superfluous IRQ error message
        net: caif: Fix debugfs on 64-bit platforms
        mac80211: Use debugfs_create_xul() helper
        media: c8sectpfe: no need to check return value of debugfs_create functions
        of: property: Add device link support for iommus, mboxes and io-channels
        ...
      9a3d7fd2
    • Linus Torvalds's avatar
      Merge tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 0dd09bc0
      Linus Torvalds authored
      Pull staging / iio updates from Greg KH:
       "Here is the big staging and iio set of patches for the 5.5-rc1
        release.
      
        It's the usual huge collection of cleanup patches all over the
        drivers/staging/ area, along with a new staging driver, and a bunch of
        new IIO drivers as well.
      
        Full details are in the shortlog, but all of these have been in
        linux-next for a long time with no reported issues"
      
      * tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (548 commits)
        staging: vchiq: Have vchiq_dump_* functions return an error code
        staging: vchiq: Refactor indentation in vchiq_dump_* functions
        staging: fwserial: Fix Kconfig indentation (seven spaces)
        staging: vchiq_dump: Replace min with min_t
        staging: vchiq: Fix block comment format in vchiq_dump()
        staging: octeon: indent with tabs instead of spaces
        staging: comedi: usbduxfast: usbduxfast_ai_cmdtest rounding error
        staging: most: core: remove sysfs attr remove_link
        staging: vc04: Fix Kconfig indentation
        staging: pi433: Fix Kconfig indentation
        staging: nvec: Fix Kconfig indentation
        staging: most: Fix Kconfig indentation
        staging: fwserial: Fix Kconfig indentation
        staging: fbtft: Fix Kconfig indentation
        fbtft: Drop OF dependency
        fbtft: Make use of device property API
        fbtft: Drop useless #ifdef CONFIG_OF and dead code
        fbtft: Describe function parameters in kernel-doc
        fbtft: Make sure string is NULL terminated
        staging: rtl8723bs: remove set but not used variable 'change', 'pos'
        ...
      0dd09bc0
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 8f56e4eb
      Linus Torvalds authored
      Pull char/misc driver updates from Greg KH:
       "Here is the big set of char/misc and other driver patches for 5.5-rc1
      
        Loads of different things in here, this feels like the catch-all of
        driver subsystems these days. Full details are in the shortlog, but
        nothing major overall, just lots of driver updates and additions.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (198 commits)
        char: Fix Kconfig indentation, continued
        habanalabs: add more protection of device during reset
        habanalabs: flush EQ workers in hard reset
        habanalabs: make the reset code more consistent
        habanalabs: expose reset counters via existing INFO IOCTL
        habanalabs: make code more concise
        habanalabs: use defines for F/W files
        habanalabs: remove prints on successful device initialization
        habanalabs: remove unnecessary checks
        habanalabs: invalidate MMU cache only once
        habanalabs: skip VA block list update in reset flow
        habanalabs: optimize MMU unmap
        habanalabs: prevent read/write from/to the device during hard reset
        habanalabs: split MMU properties to PCI/DRAM
        habanalabs: re-factor MMU masks and documentation
        habanalabs: type specific MMU cache invalidation
        habanalabs: re-factor memory module code
        habanalabs: export uapi defines to user-space
        habanalabs: don't print error when queues are full
        habanalabs: increase max jobs number to 512
        ...
      8f56e4eb
    • David S. Miller's avatar
      Merge branch 'mscc-skb-lists' · a02e3991
      David S. Miller authored
      Yangbo Lu says:
      
      ====================
      net: mscc: ocelot: fix potential issues accessing skbs list
      
      Fix two prtential issues accessing skbs list.
      - Break the matching loop when find the matching skb to avoid
        consuming more skbs incorrectly. The timestamp ID is only
        from 0 to 3 while the FIFO supports 128 timestamps at most.
      - Convert to use skb queue instead of the list of skbs to provide
        protect with lock.
      
      Changes for v2:
      	- Split into two patches.
      	- Converted to use skb queue.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a02e3991
    • Yangbo Lu's avatar
      net: mscc: ocelot: use skb queue instead of skbs list · b049da13
      Yangbo Lu authored
      Convert to use skb queue instead of the list of skbs.
      The skb queue could provide protection with lock.
      Signed-off-by: default avatarYangbo Lu <yangbo.lu@nxp.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b049da13
    • Yangbo Lu's avatar
      net: mscc: ocelot: avoid incorrect consuming in skbs list · fc62c094
      Yangbo Lu authored
      Break the matching loop when find the matching skb for TX timestamp.
      This is to avoid consuming more skbs incorrectly. The timestamp ID
      is from 0 to 3 while the FIFO could support 128 timestamps at most.
      Signed-off-by: default avatarYangbo Lu <yangbo.lu@nxp.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fc62c094
    • Linus Torvalds's avatar
      Merge tag 'usb-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 59274c71
      Linus Torvalds authored
      Pull USB updates from Greg KH:
       "Here is the big set of USB patches for 5.5-rc1
      
        Lots of little things in here:
         - typec updates and additions
         - usb-serial drivers cleanups and fixes
         - misc USB drivers cleanups and fixes
         - gadget drivers new features and controllers added
         - usual xhci additions
         - other minor changes
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'usb-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (223 commits)
        usb: gadget: udc: gr_udc: create debugfs directory under usb root
        usb: gadget: atmel: create debugfs directory under usb root
        usb: musb: create debugfs directory under usb root
        usb: serial: Fix Kconfig indentation
        usb: misc: Fix Kconfig indentation
        usb: gadget: Fix Kconfig indentation
        usb: host: Fix Kconfig indentation
        usb: dwc3: Fix Kconfig indentation
        usb: gadget: configfs: Fix missing spin_lock_init()
        usb-storage: Disable UAS on JMicron SATA enclosure
        USB: documentation: flags on usb-storage versus UAS
        USB: uas: heed CAPACITY_HEURISTICS
        USB: uas: honor flag to avoid CAPACITY16
        usb: host: xhci-tegra: Correct phy enable sequence
        usb-serial: cp201x: support Mark-10 digital force gauge
        usb: chipidea: imx: pinctrl for HSIC is optional
        usb: chipidea: imx: refine the error handling for hsic
        usb: chipidea: imx: change hsic power regulator as optional
        usb: chipidea: imx: check data->usbmisc_data against NULL before access
        usb: chipidea: core: change vbus-regulator as optional
        ...
      59274c71
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma · d7688697
      Linus Torvalds authored
      Pull rdma updates from Jason Gunthorpe:
       "Again another fairly quiet cycle with few notable core code changes
        and the usual variety of driver bug fixes and small improvements.
      
         - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr,
           iw_cxgb4, vmw_pvrdma, mlx5
      
         - Improvements in SRPT from working with iWarp
      
         - SRIOV VF support for bnxt_re
      
         - Skeleton kernel-doc files for drivers/infiniband
      
         - User visible counters for events related to ODP
      
         - Common code for tracking of mmap lifetimes so that drivers can link
           HW object liftime to a VMA
      
         - ODP bug fixes and rework
      
         - RDMA READ support for efa
      
         - Removal of the very old cxgb3 driver"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (168 commits)
        RDMA/hns: Delete unnecessary callback functions for cq
        RDMA/hns: Rename the functions used inside creating cq
        RDMA/hns: Redefine the member of hns_roce_cq struct
        RDMA/hns: Redefine interfaces used in creating cq
        RDMA/efa: Expose RDMA read related attributes
        RDMA/efa: Support remote read access in MR registration
        RDMA/efa: Store network attributes in device attributes
        IB/hfi1: remove redundant assignment to variable ret
        RDMA/bnxt_re: Fix missing le16_to_cpu
        RDMA/bnxt_re: Fix stat push into dma buffer on gen p5 devices
        RDMA/bnxt_re: Fix chip number validation Broadcom's Gen P5 series
        RDMA/bnxt_re: Fix Kconfig indentation
        IB/mlx5: Implement callbacks for getting VFs GUID attributes
        IB/ipoib: Add ndo operation for getting VFs GUID attributes
        IB/core: Add interfaces to get VF node and port GUIDs
        net/core: Add support for getting VF GUIDs
        RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset
        RDMA/cm: Use refcount_t type for refcount variable
        IB/mlx5: Support extended number of strides for Striding RQ
        IB/mlx4: Update HW GID table while adding vlan GID
        ...
      d7688697
    • Linus Torvalds's avatar
      Merge tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 0e45384c
      Linus Torvalds authored
      Pull MMC updates from Ulf Hansson:
       "These are the updates for MMC and MEMSTICK for v5.5.
      
        Note that this also contains quite some additional changes reaching
        beyond both the MMC and MEMSTICK subsystems. This is primarily because
        of fixing an old regression for a WiFi driver based on the SDIO
        interface on an OMAP openpandora board
      
        MMC core:
         - Add CMD13 polling for MMC IOCTLS with R1B response.
         - Add common DT properties for clk-phase-delays for various speed
           modes.
         - Fix size overflow for mmc gp-partitions.
         - Re-work HW reset for SDIO cards, which also includes a re-work for
           Marvell's WiFi mwifiex SDIO func driver.
      
        MMC host:
         - jz4740: Add support for X1000 and JZ4760.
         - jz4740: Add support for 8-bit bus and for low power mode.
         - mmci: Add support for HW busy timeout for the stm32_sdmmc variant.
         - owl-mmc: Add driver for Actions Semi Owl SoCs SD/MMC controller.
         - renesas_sdhi: Add support for r8a774b1.
         - sdhci_am654: Add support for Command Queuing Engine for J721E.
         - sdhci-milbeaut: Add driver for the Milbeaut SD controller.
         - sdhci-of-arasan: Add support for ZynqMP tap-delays.
         - sdhci-of-arasan: Add support for clk-phase-delays for SD cards.
         - sdhci-of-arasan: Add support for Intel LGM SDXC.
         - sdhci-of-aspeed: Allow inversion of the internal card detect
           signal.
         - sdhci-of-esdhc: Fixup workaround for erratum A-008171 for tunings.
         - sdhci-of-at91: Improve support for calibration.
         - sdhci-pci: Add support for Intel JSL.
         - sdhci-pci: Add quirk for AMD SDHC Device 0x7906.
         - tmio: Enable support for erase/discard/trim requests.
      
        MMC/OMAP/pandora/wl1251:
      
        The TI wl1251 WiFi driver for SDIO on the OMAP openpandora board has
        been broken since v4.7. To fix the problems, changes have been made
        cross subsystems, but also to OMAP2 machine code and to openpandora
        DTS files, as summarized below. Relevant changes have been tagged for
        stable.
      
         - mmc/wl1251: Re-introduce lost SDIO quirks and vendor-id for wl1251
         - omap/omap_hsmmc: Remove redundant platform config for openpandora
         - omap_hsmmc: Initialize non-std SDIO card for wl1251 for pandora
         - omap/dts/pandora: Specify wl1251 through a child node of mmc3
         - wl1251: Add devicetree support for TI wl1251 SDIO"
      
      * tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (73 commits)
        dt-bindings: mmc: Correct the type of the clk phase properties
        Revert "mmc: tmio: remove workaround for NON_REMOVABLE"
        memstick: Fix Kconfig indentation
        mmc: sdhci-of-arasan: Add support for ZynqMP Platform Tap Delays Setup
        dt-bindings: mmc: arasan: Document 'xlnx,zynqmp-8.9a' controller
        firmware: xilinx: Add SDIO Tap Delay nodes
        mmc: sdhci-of-arasan: Add support to set clock phase delays for SD
        dt-bindings: mmc: Add optional generic properties for mmc
        mmc: sdhci-of-arasan: Add sampling clock for a phy to use
        dt-bindings: mmc: arasan: Update Documentation for the input clock
        mmc: sdhci-of-arasan: Separate out clk related data to another structure
        mmc: sdhci: Fix grammar in warning message
        mmc: sdhci-of-aspeed: add inversion signal presence
        mmc: sdhci-of-aspeed: enable CONFIG_MMC_SDHCI_IO_ACCESSORS
        mmc: sdhci_am654: Add Support for Command Queuing Engine to J721E
        mmc: core: Fix size overflow for mmc partitions
        mmc: tmio: Add MMC_CAP_ERASE to allow erase/discard/trim requests
        net: wireless: ti: remove local VENDOR_ID and DEVICE_ID definitions
        net: wireless: ti: wl1251 use new SDIO_VENDOR_ID_TI_WL1251 definition
        mmc: core: fix wl1251 sdio quirks
        ...
      0e45384c
    • Linus Torvalds's avatar
      Merge tag 'pinctrl-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl · dc5fa465
      Linus Torvalds authored
      Pull pin control updates from Linus Walleij:
       "This is the bulk of pin control changes for v5.5.
      
        It is pretty much business as usual, the most interesting thing I
        think is the pin controller for a new Intel chip called Lightning
        Mountain, which is according to news reports some kind of embedded
        network processor and what is surprising about it is that Intel have
        decided to use device tree to describe the system rather than ACPI
        that they have traditionally favored.
      
        Core changes:
      
         - Avoid taking direct references to device tree-supplied device
           names: these may changed at runtime under certain circumstances to
           kstrdup them.
      
        GPIO related:
      
         - Work is ongoing to move to passing the irqchip along as a templated
           struct gpio_irq_chip when adding a standard gpiolib-based irqchip
           to a GPIO controller, a few patches in this cycle switches a few
           pin control drivers over to using this method.
      
        New hardware support:
      
         - Intel Lightning Mountain SoC pin controller and GPIO support, a
           first Intel platform to use device tree rather than ACPI to
           configure the system. News reports says that this SoC is a network
           processor.
      
         - Qualcomm MSM8976 and MSM8956
      
         - Qualcomm PMIC GPIO now also supports PM6150 and PM6150L
      
         - Qualcomm SPMI MPP and SPMI GPIO for PM8950 and PMI8950
      
         - Rockchip RK3308
      
         - Renesas R8A77961
      
         - Allwinner Meson-A1
      
        Driver improvements:
      
         - get_multiple and set_multiple support for the AT91-PIO4 driver.
      
         - Convert Qualcomm SSBI GPIO to use the hierarchical IRQ helpers in
           the GPIOlib irqchip"
      
      * tag 'pinctrl-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (93 commits)
        pinctrl: ingenic: Add OTG VBUS pin for the JZ4770
        pinctrl: ingenic: Handle PIN_CONFIG_OUTPUT config
        pinctrl: Fix Kconfig indentation
        pinctrl: lewisburg: Update pin list according to v1.1v6
        MAINTAINERS: Replace my email by one @kernel.org
        pinctrl: armada-37xx: Fix irq mask access in armada_37xx_irq_set_type()
        dt-bindings: pinctrl: intel: Add for new SoC
        pinctrl: Add pinmux & GPIO controller driver for a new SoC
        pinctrl: rza1: remove unnecessary static inline function
        pinctrl: meson: add pinctrl driver support for Meson-A1 SoC
        pinctrl: meson: add a new callback for SoCs fixup
        pinctrl: nomadik: db8500: Add mc0_a_2 pin group without direction control
        dt-bindings: pinctrl: Convert generic pin mux and config properties to schema
        pinctrl: cherryview: Missed type change to unsigned int
        pinctrl: intel: Missed type change to unsigned int
        pinctrl: use devm_platform_ioremap_resource() to simplify code
        pinctrl: just return if no valid maps
        dt-bindings: pinctrl: qcom-pmic-mpp: Add support for PM/PMI8950
        pinctrl: qcom: spmi-mpp: Add PM/PMI8950 compatible strings
        dt-bindings: pinctrl: qcom-pmic-gpio: Add support for PM/PMI8950
        ...
      dc5fa465
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging · 3d9e3501
      Linus Torvalds authored
      Pull hwmon updates from Guenter Roeck:
      
       - Add support for Texas Instruments TMP512/513
      
       - Add support for LTC2947
      
       - Add support for BEL PFE1100 and PFE3000
      
       - Various minor improvements and fixes
      
      * tag 'hwmon-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        dell-smm-hwmon: Add documentation
        hwmon: (dell-smm) Add support for disabling automatic BIOS fan control
        hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.
        dt-bindings: hwmon: Add TMP512/513
        docs: hwmon: Document bel-pfe pmbus driver
        hwmon: (pmbus) add driver for BEL PFE1100 and PFE3000
        dt-bindings: hwmon: Add ltc2947 documentation
        hwmon: Add support for ltc2947
        hwmon: (ina3221) Add summation feature support
        hwmon: (tmp421) Allow reading at 2Hz instead of 0.5Hz
        hwmon: (w83793d) remove redundant assignment to variable res
        hwmon: (pmbus/ibm-cffps) Add version detection capability
        dt-bindings: hwmon: Document ibm,cffps compatible string
        hwmon: abituguru: make array probe_order static, makes object smaller
        hwmon: (applesmc) switch to using input device polling mode
        hwmon: (aspeed-pwm-tacho) Use devm_platform_ioremap_resource() in aspeed_pwm_tacho_probe()
        hwmon: (pmbus/ibm-cffps) Fix LED blink behavior
        hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness call
      3d9e3501
    • Linus Torvalds's avatar
      Merge tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply · 00074a70
      Linus Torvalds authored
      Pull power supply and reset updates from Sebastian Reichel:
      
       - test_power: add support for current and charge_counter
      
       - cpcap-charger: improve charge calculation and limit default charge
         voltage
      
       - ab8500: convert to IIO
      
       - misc small fixes all over drivers
      
      * tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits)
        power: supply: bd70528: Add MODULE_ALIAS to allow module auto loading
        power: supply: ab8500_charger: Fix inconsistent IS_ERR and PTR_ERR
        power: supply: cpcap-charger: cpcap_charger_voltage_to_regval() can be static
        power: supply: cpcap-battery: Add basic coulomb counter calibrate support
        power: supply: cpcap-battery: Read and save integrator register CCI
        power: supply: cpcap-battery: Simplify short term power average calculation
        power: supply: cpcap-battery: Simplify coulomb counter calculation with div_s64
        power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata
        power: supply: cpcap-charger: Allow changing constant charge voltage
        power: supply: cpcap-battery: Fix handling of lowered charger voltage
        power: supply: cpcap-charger: Improve battery detection
        power: supply: cpcap-battery: Check voltage before orderly_poweroff
        power: supply: cpcap-charger: Limit voltage to 4.2V for battery
        power: supply: ab8500: Handle invalid IRQ from platform_get_irq_byname()
        power: supply: ab8500_fg: Do not free non-requested IRQs in probe's error path
        power: supply: ab8500: Cleanup probe in reverse order
        power: reset: at91: fix __le32 cast in reset code
        power: supply: abx500_chargalg: Fix code indentation
        mfd: Switch the AB8500 GPADC to IIO
        iio: adc: New driver for the AB8500 GPADC
        ...
      00074a70
    • Linus Torvalds's avatar
      Merge tag 'media/v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · 89d57ddd
      Linus Torvalds authored
      Pull media updates from Mauro Carvalho Chehab:
      
       - uAPI documentation for stateless decoders
      
       - Added a new CEC ioctl together with its documentation
      
       - Improved IPU3 documentation
      
       - New i2c drivers: hi556 and imx290
      
       - Added support on Vivid driver for meta streams
      
       - Added de-interlace support for sunxi subdriver
      
       - Added a few new remote controler keymaps
      
       - Added H.265 support for Sunxi Cedrus driver
      
       - Another round of random driver cleanups, fixes and improvements
      
      * tag 'media/v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (361 commits)
        media: Revert "media: mtk-vcodec: Remove extra area allocation in an input buffer on encoding"
        media: hantro: Set H264 FIELDPIC_FLAG_E flag correctly
        media: hantro: Remove now unused H264 pic_size
        media: hantro: Use output buffer width and height for H264 decoding
        media: hantro: Reduce H264 extra space for motion vectors
        media: hantro: Fix H264 motion vector buffer offset
        media: ti-vpe: vpe: fix compatible to match bindings
        media: dt-bindings: media: ti-vpe: Document VPE driver
        media: zr364xx: remove redundant assigmnent to idx, clean up code
        media: Documentation: media: *_DEFAULT targets for subdevs
        media: hantro: Fix s_fmt for dynamic resolution changes
        media: i2c: Use the correct style for SPDX License Identifier
        media: siano: Use the correct style for SPDX License Identifier
        media: vicodec: media_device_cleanup was called too early
        media: vim2m: media_device_cleanup was called too early
        media: cedrus: Increase maximum supported size
        media: cedrus: Fix H264 4k support
        media: cedrus: Properly signal size in mode register
        media: v4l2-ctrl: Lock main_hdl on operations of requests_queued.
        media: si470x-i2c: add missed operations in remove
        ...
      89d57ddd
    • Linus Torvalds's avatar
      Merge tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 3f1b210a
      Linus Torvalds authored
      Pull sound updates from Takashi Iwai:
       "There have been some significant changes in the core side, both for
        ALSA and ASoC, while lots of development have been seen in SOF, as
        well as many small fixes/improvements for ASoC codecs and platforms.
        Below is a highlight in this cycle:
      
        Core:
         - The unification of PCM vmalloc buffer allocation helpers into the
           standard API
         - Clean up of the default PCM mmap handling for vmalloc & SG-buffer
         - Fix potential races at ALSA timer open
         - A few new PCM API extensions; just preliminary core changes, the
           actual changes in drivers will be merged in 5.6
         - Continued ASoC componentization works; now almost everything is a
           common ASoC component object. A lot of refactoring and
           simplification have been done along with it.
      
        ASoC:
         - Many fixes to the Sound Open Firmware (SOF) code
         - Wake on voice support for Chromebooks
         - SPI support and trigger word detection for RT5677
         - New drivers for Analog Devices ADAU7118, Intel Cannonlake systems
           with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770
      
        HD-audio:
         - Improved Intel DSP configuration / probe code for SOF
         - Plumbing the legacy HD-audio driver with Intel SOF HDMI
         - DP-MST support for Nvidia HDMI codecs
         - Realtek quirks cleanups and new additions as usual
      
        Others:
         - Lots of refactoring and cleanups for FireWire; period-size sharing,
           h/w IRQ interval configuration, clock recovery improvements, etc
         - USB-audio: Scarlett mixer quirks
         - Cleanups of PCM calls in various drivers (including media and USB)
           to adapt the core API changes"
      
      * tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits)
        ALSA: usb-audio: Fix Focusrite Scarlett 6i6 gen1 - input handling
        ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC
        ALSA: aloop: Fix dependency on timer API
        ASoC: DMI long name - avoid to add board name if matches with product name
        ASoC: improve the DMI long card code in asoc-core
        ASoC: rsnd: fix DALIGN register for SSIU
        ALSA: aloop: Avoid unexpected timer event callback tasklets
        ALSA: aloop: Remove redundant locking in timer open function
        ASoC: component: Add sync_stop PCM ops
        ASoC: pcm: Make ioctl ops optional
        ALSA: hda/hdmi - Clear codec->relaxed_resume flag at unbinding
        ALSA: hda - Disable audio component for legacy Nvidia HDMI codecs
        ALSA: cs4236: fix error return comparison of an unsigned integer
        ALSA: usb-audio: Fix NULL dereference at parsing BADD
        ALSA: usb-audio: Fix Scarlett 6i6 Gen 2 port data
        ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop
        ALSA: hda/realtek - Move some alc236 pintbls to fallback table
        ALSA: hda/realtek - Move some alc256 pintbls to fallback table
        ALSA: docs: Update about the new PCM sync_stop ops
        ALSA: pcm: Add card sync_irq field
        ...
      3f1b210a
    • Linus Torvalds's avatar
      Merge tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 361b0d28
      Linus Torvalds authored
      Pull device properties framework updates from Rafael Wysocki:
       "Add support for printing fwnode names using a new conversion specifier
        "%pfw" (Sakari Ailus), clean up the software node and
        efi/apple-properties code in preparation for improved software node
        reference properties handling (Dmitry Torokhov) and fix the struct
        fwnode_operations description (Heikki Krogerus)"
      
      * tag 'devprop-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (22 commits)
        software node: simplify property_entry_read_string_array()
        software node: unify PROPERTY_ENTRY_XXX macros
        software node: remove property_entry_read_uNN_array functions
        software node: get rid of property_set_pointer()
        software node: clean up property_copy_string_array()
        software node: mark internal macros with double underscores
        efi/apple-properties: use PROPERTY_ENTRY_U8_ARRAY_LEN
        software node: introduce PROPERTY_ENTRY_XXX_ARRAY_LEN()
        software node: remove DEV_PROP_MAX
        device property: Fix the description of struct fwnode_operations
        lib/test_printf: Add tests for %pfw printk modifier
        lib/vsprintf: Add %pfw conversion specifier for printing fwnode names
        lib/vsprintf: OF nodes are first and foremost, struct device_nodes
        lib/vsprintf: Make use of fwnode API to obtain node names and separators
        lib/vsprintf: Add a note on re-using %pf or %pF
        lib/vsprintf: Remove support for %pF and %pf in favour of %pS and %ps
        device property: Add a function to obtain a node's prefix
        device property: Add fwnode_get_name for returning the name of a node
        device property: Add functions for accessing node's parents
        device property: Move fwnode_get_parent() up
        ...
      361b0d28
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 6e9f8796
      Linus Torvalds authored
      Pull ACPI updates from Rafael Wysocki:
       "These update the ACPICA code in the kernel to upstream revision
        20191018, add support for EFI specific purpose memory, update the ACPI
        EC driver to make it work on systems with hardware-reduced ACPI,
        improve ACPI-based device enumeration for some platforms, rework the
        lid blacklist handling in the button driver and add more lid quirks to
        it, unify ACPI _HID/_UID matching, fix assorted issues and clean up
        the code and documentation.
      
        Specifics:
      
         - Update the ACPICA code in the kernel to upstream revision 20191018
           including:
            * Fixes for Clang warnings (Bob Moore)
            * Fix for possible overflow in get_tick_count() (Bob Moore)
            * Introduction of acpi_unload_table() (Bob Moore)
            * Debugger and utilities updates (Erik Schmauss)
            * Fix for unloading tables loaded via configfs (Nikolaus Voss)
      
         - Add support for EFI specific purpose memory to optionally allow
           either application-exclusive or core-kernel-mm managed access to
           differentiated memory (Dan Williams)
      
         - Fix and clean up processing of the HMAT table (Brice Goglin, Qian
           Cai, Tao Xu)
      
         - Update the ACPI EC driver to make it work on systems with
           hardware-reduced ACPI (Daniel Drake)
      
         - Always build in support for the Generic Event Device (GED) to allow
           one kernel binary to work both on systems with full hardware ACPI
           and hardware-reduced ACPI (Arjan van de Ven)
      
         - Fix the table unload mechanism to unregister platform devices
           created when the given table was loaded (Andy Shevchenko)
      
         - Rework the lid blacklist handling in the button driver and add more
           lid quirks to it (Hans de Goede)
      
         - Improve ACPI-based device enumeration for some platforms based on
           Intel BayTrail SoCs (Hans de Goede)
      
         - Add an OpRegion driver for the Cherry Trail Crystal Cove PMIC and
           prevent handlers from being registered for unhandled PMIC OpRegions
           (Hans de Goede)
      
         - Unify ACPI _HID/_UID matching (Andy Shevchenko)
      
         - Clean up documentation and comments (Cao jin, James Pack, Kacper
           Piwiński)"
      
      * tag 'acpi-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
        ACPI: OSI: Shoot duplicate word
        ACPI: HMAT: use %u instead of %d to print u32 values
        ACPI: NUMA: HMAT: fix a section mismatch
        ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
        ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
        ACPI: NUMA: HMAT: Register HMAT at device_initcall level
        device-dax: Add a driver for "hmem" devices
        dax: Fix alloc_dax_region() compile warning
        lib: Uplevel the pmem "region" ida to a global allocator
        x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
        arm/efi: EFI soft reservation to memblock
        x86/efi: EFI soft reservation to E820 enumeration
        efi: Common enable/disable infrastructure for EFI soft reservation
        x86/efi: Push EFI_MEMMAP check into leaf routines
        efi: Enumerate EFI_MEMORY_SP
        ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
        ACPICA: Update version to 20191018
        ACPICA: debugger: remove leading whitespaces when converting a string to a buffer
        ACPICA: acpiexec: initialize all simple types and field units from user input
        ACPICA: debugger: add field unit support for acpi_db_get_next_token
        ...
      6e9f8796
    • Linus Torvalds's avatar
      Merge tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 9e7a0323
      Linus Torvalds authored
      Pull power management updates from Rafael Wysocki:
       "These include cpuidle changes to use nanoseconds (instead of
        microseconds) as the unit of time and to simplify checks for disabled
        idle states in the idle loop, some cpuidle fixes and governor updates,
        assorted cpufreq updates (driver updates mostly and a few core fixes
        and cleanups), devfreq updates (dominated by the tegra30 driver
        changes), new CPU IDs for the RAPL power capping driver, relatively
        minor updates of the generic power domains (genpd) and operation
        performance points (OPP) frameworks, and assorted fixes and cleanups.
      
        There are also two maintainer information updates: Chanwoo Choi will
        be maintaining the devfreq subsystem going forward and Todd Brandt is
        going to maintain the pm-graph utility (created by him).
      
        Specifics:
      
         - Use nanoseconds (instead of microseconds) as the unit of time in
           the cpuidle core and simplify checks for disabled idle states in
           the idle loop (Rafael Wysocki)
      
         - Fix and clean up the teo cpuidle governor (Rafael Wysocki)
      
         - Fix the cpuidle registration error code path (Zhenzhong Duan)
      
         - Avoid excessive vmexits in the ACPI cpuidle driver (Yin Fengwei)
      
         - Extend the idle injection infrastructure to be able to measure the
           requested duration in nanoseconds and to allow an exit latency
           limit for idle states to be specified (Daniel Lezcano)
      
         - Fix cpufreq driver registration and clarify a comment in the
           cpufreq core (Viresh Kumar)
      
         - Add NULL checks to the show() and store() methods of sysfs
           attributes exposed by cpufreq (Kai Shen)
      
         - Update cpufreq drivers:
            * Fix for a plain int as pointer warning from sparse in
              intel_pstate (Jamal Shareef)
            * Fix for a hardcoded number of CPUs and stack bloat in the
              powernv driver (John Hubbard)
            * Updates to the ti-cpufreq driver and DT files to support new
              platforms and migrate bindings from opp-v1 to opp-v2 (Adam Ford,
              H. Nikolaus Schaller)
            * Merging of the arm_big_little and vexpress-spc drivers and
              related cleanup (Sudeep Holla)
            * Fix for imx's default speed grade value (Anson Huang)
            * Minor cleanup of the s3c64xx driver (Nathan Chancellor)
            * CPU speed bin detection fix for sun50i (Ondrej Jirman)
      
         - Appoint Chanwoo Choi as the new devfreq maintainer.
      
         - Update the devfreq core:
            * Check NULL governor in available_governors_show sysfs to prevent
              showing wrong governor information and fix a race condition
              between devfreq_update_status() and trans_stat_show() (Leonard
              Crestez)
            * Add new 'interrupt-driven' flag for devfreq governors to allow
              interrupt-driven governors to prevent the devfreq core from
              polling devices for status (Dmitry Osipenko)
            * Improve an error message in devfreq_add_device() (Matthias
              Kaehlcke)
      
         - Update devfreq drivers:
            * tegra30 driver fixes and cleanups (Dmitry Osipenko)
            * Removal of unused property from dt-binding documentation for the
              exynos-bus driver (Kamil Konieczny)
            * exynos-ppmu cleanup and DT bindings update (Lukasz Luba, Marek
              Szyprowski)
      
         - Add new CPU IDs for CometLake Mobile and Desktop to the Intel RAPL
           power capping driver (Zhang Rui)
      
         - Allow device initialization in the generic power domains (genpd)
           framework to be more straightforward and clean it up (Ulf Hansson)
      
         - Add support for adjusting OPP voltages at run time to the OPP
           framework (Stephen Boyd)
      
         - Avoid freeing memory that has never been allocated in the
           hibernation core (Andy Whitcroft)
      
         - Clean up function headers in a header file and coding style in the
           wakeup IRQs handling code (Ulf Hansson, Xiaofei Tan)
      
         - Clean up the SmartReflex adaptive voltage scaling (AVS) driver for
           ARM (Ben Dooks, Geert Uytterhoeven)
      
         - Wrap power management documentation to fit in 80 columns (Bjorn
           Helgaas)
      
         - Add pm-graph utility entry to MAINTAINERS (Todd Brandt)
      
         - Update the cpupower utility:
            * Fix the handling of set and info subcommands (Abhishek Goel)
            * Fix build warnings (Nathan Chancellor)
            * Improve mperf_monitor handling (Janakarajan Natarajan)"
      
      * tag 'pm-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (83 commits)
        PM: Wrap documentation to fit in 80 columns
        cpuidle: Pass exit latency limit to cpuidle_use_deepest_state()
        cpuidle: Allow idle injection to apply exit latency limit
        cpuidle: Introduce cpuidle_driver_state_disabled() for driver quirks
        cpuidle: teo: Avoid code duplication in conditionals
        cpufreq: Register drivers only after CPU devices have been registered
        cpuidle: teo: Avoid using "early hits" incorrectly
        cpuidle: teo: Exclude cpuidle overhead from computations
        PM / Domains: Convert to dev_to_genpd_safe() in genpd_syscore_switch()
        mmc: tmio: Avoid boilerplate code in ->runtime_suspend()
        PM / Domains: Implement the ->start() callback for genpd
        PM / Domains: Introduce dev_pm_domain_start()
        ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition
        PM / wakeirq: remove unnecessary parentheses
        power: avs: smartreflex: Remove superfluous cast in debugfs_create_file() call
        cpuidle: Use nanoseconds as the unit of time
        PM / OPP: Support adjusting OPP voltages at runtime
        PM / core: Clean up some function headers in power.h
        cpufreq: Add NULL checks to show() and store() methods of cpufreq
        cpufreq: intel_pstate: Fix plain int as pointer warning from sparse
        ...
      9e7a0323
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c2da5bdc
      Linus Torvalds authored
      Pull x86 merge fix from Ingo Molnar:
       "I missed one other semantic conflict that can result in build failures
        on certain stripped down x86 32-bit configs, for example 32-bit
        'allnoconfig' where CONFIG_X86_IOPL_IOPERM gets turned off"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/iopl: Make 'struct tss_struct' constant size again
      c2da5bdc
    • Linus Torvalds's avatar
      Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 168829ad
      Linus Torvalds authored
      Pull locking updates from Ingo Molnar:
       "The main changes in this cycle were:
      
         - A comprehensive rewrite of the robust/PI futex code's exit handling
           to fix various exit races. (Thomas Gleixner et al)
      
         - Rework the generic REFCOUNT_FULL implementation using
           atomic_fetch_* operations so that the performance impact of the
           cmpxchg() loops is mitigated for common refcount operations.
      
           With these performance improvements the generic implementation of
           refcount_t should be good enough for everybody - and this got
           confirmed by performance testing, so remove ARCH_HAS_REFCOUNT and
           REFCOUNT_FULL entirely, leaving the generic implementation enabled
           unconditionally. (Will Deacon)
      
         - Other misc changes, fixes, cleanups"
      
      * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
        lkdtm: Remove references to CONFIG_REFCOUNT_FULL
        locking/refcount: Remove unused 'refcount_error_report()' function
        locking/refcount: Consolidate implementations of refcount_t
        locking/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions
        locking/refcount: Move saturation warnings out of line
        locking/refcount: Improve performance of generic REFCOUNT_FULL code
        locking/refcount: Move the bulk of the REFCOUNT_FULL implementation into the <linux/refcount.h> header
        locking/refcount: Remove unused refcount_*_checked() variants
        locking/refcount: Ensure integer operands are treated as signed
        locking/refcount: Define constants for saturation and max refcount values
        futex: Prevent exit livelock
        futex: Provide distinct return value when owner is exiting
        futex: Add mutex around futex exit
        futex: Provide state handling for exec() as well
        futex: Sanitize exit state handling
        futex: Mark the begin of futex exit explicitly
        futex: Set task::futex_state to DEAD right after handling futex exit
        futex: Split futex_mm_release() for exit/exec
        exit/exec: Seperate mm_release()
        futex: Replace PF_EXITPIDONE with a state
        ...
      168829ad
  4. 26 Nov, 2019 4 commits
    • Jeroen de Borst's avatar
      gve: Fix the queue page list allocated pages count · a95069ec
      Jeroen de Borst authored
      In gve_alloc_queue_page_list(), when a page allocation fails,
      qpl->num_entries will be wrong.  In this case priv->num_registered_pages
      can underflow in gve_free_queue_page_list(), causing subsequent calls
      to gve_alloc_queue_page_list() to fail.
      
      Fixes: f5cedc84 ("gve: Add transmit and receive support")
      Signed-off-by: default avatarJeroen de Borst <jeroendb@google.com>
      Reviewed-by: default avatarCatherine Sullivan <csully@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a95069ec
    • Linus Torvalds's avatar
      Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1ae78780
      Linus Torvalds authored
      Pull RCU updates from Ingo Molnar:
       "The main changes in this cycle were:
      
         - Dynamic tick (nohz) updates, perhaps most notably changes to force
           the tick on when needed due to lengthy in-kernel execution on CPUs
           on which RCU is waiting.
      
         - Linux-kernel memory consistency model updates.
      
         - Replace rcu_swap_protected() with rcu_prepace_pointer().
      
         - Torture-test updates.
      
         - Documentation updates.
      
         - Miscellaneous fixes"
      
      * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
        security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
        net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
        net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
        net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
        bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
        fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
        drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
        drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
        x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
        rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
        rcu: Suppress levelspread uninitialized messages
        rcu: Fix uninitialized variable in nocb_gp_wait()
        rcu: Update descriptions for rcu_future_grace_period tracepoint
        rcu: Update descriptions for rcu_nocb_wake tracepoint
        rcu: Remove obsolete descriptions for rcu_barrier tracepoint
        rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
        workqueue: Convert for_each_wq to use built-in list check
        rcu: Several rcu_segcblist functions can be static
        rcu: Remove unused function hlist_bl_del_init_rcu()
        Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
        ...
      1ae78780
    • Linus Torvalds's avatar
      Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 77a05940
      Linus Torvalds authored
      Pull scheduler updates from Ingo Molnar:
       "The biggest changes in this cycle were:
      
         - Make kcpustat vtime aware (Frederic Weisbecker)
      
         - Rework the CFS load_balance() logic (Vincent Guittot)
      
         - Misc cleanups, smaller enhancements, fixes.
      
        The load-balancing rework is the most intrusive change: it replaces
        the old heuristics that have become less meaningful after the
        introduction of the PELT metrics, with a grounds-up load-balancing
        algorithm.
      
        As such it's not really an iterative series, but replaces the old
        load-balancing logic with the new one. We hope there are no
        performance regressions left - but statistically it's highly probable
        that there *is* going to be some workload that is hurting from these
        chnages. If so then we'd prefer to have a look at that workload and
        fix its scheduling, instead of reverting the changes"
      
      * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
        rackmeter: Use vtime aware kcpustat accessor
        leds: Use all-in-one vtime aware kcpustat accessor
        cpufreq: Use vtime aware kcpustat accessors for user time
        procfs: Use all-in-one vtime aware kcpustat accessor
        sched/vtime: Bring up complete kcpustat accessor
        sched/cputime: Support other fields on kcpustat_field()
        sched/cpufreq: Move the cfs_rq_util_change() call to cpufreq_update_util()
        sched/fair: Add comments for group_type and balancing at SD_NUMA level
        sched/fair: Fix rework of find_idlest_group()
        sched/uclamp: Fix overzealous type replacement
        sched/Kconfig: Fix spelling mistake in user-visible help text
        sched/core: Further clarify sched_class::set_next_task()
        sched/fair: Use mul_u32_u32()
        sched/core: Simplify sched_class::pick_next_task()
        sched/core: Optimize pick_next_task()
        sched/core: Make pick_next_task_idle() more consistent
        sched/fair: Better document newidle_balance()
        leds: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
        cpufreq: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
        procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
        ...
      77a05940
    • Maciej Żenczykowski's avatar
      net: inet_is_local_reserved_port() port arg should be unsigned short · 66e2f5f7
      Maciej Żenczykowski authored
      Any argument outside of that range would result in an out of bound
      memory access, since the accessed array is 65536 bits long.
      Signed-off-by: default avatarMaciej Żenczykowski <maze@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      66e2f5f7