1. 29 Aug, 2020 4 commits
  2. 28 Aug, 2020 24 commits
    • Linus Torvalds's avatar
      Merge tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block · 4d41ead6
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - nbd timeout fix (Hou)
      
       - device size fix for loop LOOP_CONFIGURE (Martijn)
      
       - MD pull from Song with raid5 stripe size fix (Yufen)
      
      * tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block:
        md/raid5: make sure stripe_size as power of two
        loop: Set correct device size when using LOOP_CONFIGURE
        nbd: restore default timeout when setting it to zero
      4d41ead6
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.9-2020-08-28' of git://git.kernel.dk/linux-block · 24148d86
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       "A few fixes in here, all based on reports and test cases from folks
        using it. Most of it is stable material as well:
      
         - Hashed work cancelation fix (Pavel)
      
         - poll wakeup signalfd fix
      
         - memlock accounting fix
      
         - nonblocking poll retry fix
      
         - ensure we never return -ERESTARTSYS for reads
      
         - ensure offset == -1 is consistent with preadv2() as documented
      
         - IOPOLL -EAGAIN handling fixes
      
         - remove useless task_work bounce for block based -EAGAIN retry"
      
      * tag 'io_uring-5.9-2020-08-28' of git://git.kernel.dk/linux-block:
        io_uring: don't bounce block based -EAGAIN retry off task_work
        io_uring: fix IOPOLL -EAGAIN retries
        io_uring: clear req->result on IOPOLL re-issue
        io_uring: make offset == -1 consistent with preadv2/pwritev2
        io_uring: ensure read requests go through -ERESTART* transformation
        io_uring: don't use poll handler if file can't be nonblocking read/written
        io_uring: fix imbalanced sqo_mm accounting
        io_uring: revert consumed iov_iter bytes on error
        io-wq: fix hang after cancelling pending hashed work
        io_uring: don't recurse on tsk->sighand->siglock with signalfd
      24148d86
    • Linus Torvalds's avatar
      Merge tag 'devprop-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 005c5344
      Linus Torvalds authored
      Pull device properties framework fix from Rafael Wysocki:
       "Prevent the promotion of the secondary firmware node of a device to
        the primary one from leaking a pointer (Heikki Krogerus)"
      
      * tag 'devprop-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        device property: Fix the secondary firmware node handling in set_primary_fwnode()
      005c5344
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 0b2f18e7
      Linus Torvalds authored
      Pull ACPI fixes from Rafael Wysocki:
       "These fix two recent issues in the ACPI memory mappings management
        code and tighten up error handling in the ACPI driver for AMD SoCs
        (APD).
      
        Specifics:
      
         - Avoid redundant rounding to the page size in acpi_os_map_iomem() to
           address a recently introduced issue with the EFI memory map
           permission check on ARM64 (Ard Biesheuvel).
      
         - Fix acpi_release_memory() to wait until the memory mappings
           released by it have been really unmapped (Rafael Wysocki).
      
         - Make the ACPI driver for AMD SoCs (APD) check the return value of
           acpi_dev_get_property() to avoid failures in the cases when the
           device property under inspection is missing (Furquan Shaikh)"
      
      * tag 'acpi-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPI: OSL: Prevent acpi_release_memory() from returning too early
        ACPI: ioremap: avoid redundant rounding to OS page size
        ACPI: SoC: APD: Check return value of acpi_dev_get_property()
      0b2f18e7
    • Linus Torvalds's avatar
      Merge tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 326e311b
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "These fix the recently added Tegra194 cpufreq driver and the handling
        of devices using runtime PM during system-wide suspend, improve the
        intel_pstate driver documentation and clean up the cpufreq core.
      
        Specifics:
      
         - Make the recently added Tegra194 cpufreq driver use
           read_cpuid_mpir() instead of cpu_logical_map() to avoid exporting
           logical_cpu_map (Sumit Gupta).
      
         - Drop the automatic system wakeup event reporting for devices with
           pending runtime-resume requests during system-wide suspend to avoid
           spurious aborts of the suspend flow (Rafael Wysocki).
      
         - Fix build warning in the intel_pstate driver documentation and
           improve the wording in there (Randy Dunlap).
      
         - Clean up two pieces of code in the cpufreq core (Viresh Kumar)"
      
      * tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: Use WARN_ON_ONCE() for invalid relation
        cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
        PM: sleep: core: Fix the handling of pending runtime resume requests
        Documentation: fix pm/intel_pstate build warning and wording
        cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
      326e311b
    • Rafael J. Wysocki's avatar
      Merge branch 'acpi-mm' · 4f31d53c
      Rafael J. Wysocki authored
      * acpi-mm:
        ACPI: OSL: Prevent acpi_release_memory() from returning too early
        ACPI: ioremap: avoid redundant rounding to OS page size
      4f31d53c
    • Rafael J. Wysocki's avatar
      Merge branch 'pm-cpufreq' · ef7d9604
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: Use WARN_ON_ONCE() for invalid relation
        cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
        Documentation: fix pm/intel_pstate build warning and wording
        cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
      ef7d9604
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 96d454cd
      Linus Torvalds authored
      Pull arm64 fixes from Catalin Marinas:
      
       - Fix kernel build with the integrated LLVM assembler which doesn't see
         the -Wa,-march option.
      
       - Fix "make vdso_install" when COMPAT_VDSO is disabled.
      
       - Make KVM more robust if the AT S1E1R instruction triggers an
         exception (architecture corner cases).
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
        KVM: arm64: Survive synchronous exceptions caused by AT instructions
        KVM: arm64: Add kvm_extable for vaxorcism code
        arm64: vdso32: make vdso32 install conditional
        arm64: use a common .arch preamble for inline assembly
      96d454cd
    • Herbert Xu's avatar
      kernel.h: Silence sparse warning in lower_32_bits · ef91bb19
      Herbert Xu authored
      
      
      I keep getting sparse warnings in crypto such as:
      
        CHECK   drivers/crypto/ccree/cc_hash.c
         drivers/crypto/ccree/cc_hash.c:49:9: warning: cast truncates bits from constant value (47b5481dbefa4fa4 becomes befa4fa4)
         drivers/crypto/ccree/cc_hash.c:49:26: warning: cast truncates bits from constant value (db0c2e0d64f98fa7 becomes 64f98fa7)
         [.. many more ..]
      
      This patch removes the warning by adding a mask to keep sparse
      happy.
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ef91bb19
    • Linus Torvalds's avatar
      Merge tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · e3094285
      Linus Torvalds authored
      Pull writeback fixes from Jan Kara:
       "Fixes for writeback code occasionally skipping writeback of some
        inodes or livelocking sync(2)"
      
      * tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        writeback: Drop I_DIRTY_TIME_EXPIRE
        writeback: Fix sync livelock due to b_dirty_time processing
        writeback: Avoid skipping inode writeback
        writeback: Protect inode->i_io_list with inode->i_lock
      e3094285
    • Linus Torvalds's avatar
      Merge tag 'gfs2-v5.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 · 40129b8c
      Linus Torvalds authored
      Pull gfs2 fix from Andreas Gruenbacher:
       "Fix a memory leak on filesystem withdraw.
      
        We didn't detect this bug because we have slab merging on by default
        (CONFIG_SLAB_MERGE_DEFAULT). Adding 'slub_nomerge' to the kernel
        command line exposed the problem"
      
      * tag 'gfs2-v5.9-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
        gfs2: add some much needed cleanup for log flushes that fail
      40129b8c
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-5.9-rc3' of git://github.com/ceph/ceph-client · b0bfd5ec
      Linus Torvalds authored
      Pull ceph fixes from Ilya Dryomov:
       "We have an inode number handling change, prompted by s390x which is a
        64-bit architecture with a 32-bit ino_t, a patch to disallow leases to
        avoid potential data integrity issues when CephFS is re-exported via
        NFS or CIFS and a fix for the bulk of W=1 compilation warnings"
      
      * tag 'ceph-for-5.9-rc3' of git://github.com/ceph/ceph-client:
        ceph: don't allow setlease on cephfs
        ceph: fix inode number handling on arches with 32-bit ino_t
        libceph: add __maybe_unused to DEFINE_CEPH_FEATURE
      b0bfd5ec
    • Linus Torvalds's avatar
      Merge tag 'mfd-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd · 3a7c3277
      Linus Torvalds authored
      Pull MFD fixes from Lee Jones:
      
       - fix double free
      
       - handle devicetree disabled devices gracefully
      
      * tag 'mfd-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
        mfd: mfd-core: Ensure disabled devices are ignored without error
        mfd: core: Fix double-free in mfd_remove_devices_fn()
      3a7c3277
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm · 5ec06b5c
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "As expected a bit of an rc3 uptick, amdgpu and msm are the main ones,
        one msm patch was from the merge window, but had dependencies and we
        dropped it until the other tree had landed. Otherwise it's a couple of
        fixes for core, and etnaviv, and single i915, exynos, omap fixes.
      
        I'm still tracking the Sandybridge gpu relocations issue, if we don't
        see much movement I might just queue up the reverts. I'll talk to
        Daniel next week once he's back from holidays.
      
        core:
         - Take modeset bkl for legacy drivers
      
        dp_mst:
         - Allow null crtc in dp_mst
      
        i915:
         - Fix command parser desc matching with masks
      
        amdgpu:
         - Misc display fixes
         - Backlight fixes
         - MPO fix for DCN1
         - Fixes for Sienna Cichlid
         - Fixes for Navy Flounder
         - Vega SW CTF fixes
         - SMU fix for Raven
         - Fix a possible overflow in INFO ioctl
         - Gfx10 clockgating fix
      
        msm:
         - opp/bw scaling patch followup
         - frequency restoring fux
         - vblank in atomic commit fix
         - dpu modesetting fixes
         - fencing fix
      
        etnaviv:
         - scheduler interaction fix
         - gpu init regression fix
      
        exynos:
         - Just drop __iommu annotation to fix sparse warning
      
        omap:
         - locking state fix"
      
      * tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm: (41 commits)
        drm/amd/display: Fix memleak in amdgpu_dm_mode_config_init
        drm/amdgpu: disable runtime pm for navy_flounder
        drm/amd/display: Retry AUX write when fail occurs
        drm/amdgpu: Fix buffer overflow in INFO ioctl
        drm/amd/powerplay: Fix hardmins not being sent to SMU for RV
        drm/amdgpu: use MODE1 reset for navy_flounder by default
        drm/amd/pm: correct the thermal alert temperature limit settings
        drm/amdgpu: add asd fw check before loading asd
        drm/amd/display: Keep current gain when ABM disable immediately
        drm/amd/display: Fix passive dongle mistaken as active dongle in EDID emulation
        drm/amd/display: Revert HDCP disable sequence change
        drm/amd/display: Send DISPLAY_OFF after power down on boot
        drm/amdgpu/gfx10: refine mgcg setting
        drm/amd/pm: correct Vega20 swctf limit setting
        drm/amd/pm: correct Vega12 swctf limit setting
        drm/amd/pm: correct Vega10 swctf limit setting
        drm/amd/pm: set VCN pg per instances
        drm/amd/pm: enable run_btc callback for sienna_cichlid
        drivers: gpu: amd: Initialize amdgpu_dm_backlight_caps object to 0 in amdgpu_dm_update_backlight_caps
        drm/amd/display: Reject overlay plane configurations in multi-display scenarios
        ...
      5ec06b5c
    • James Morse's avatar
      KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception · 71a7f8cb
      James Morse authored
      AT instructions do a translation table walk and return the result, or
      the fault in PAR_EL1. KVM uses these to find the IPA when the value is
      not provided by the CPU in HPFAR_EL1.
      
      If a translation table walk causes an external abort it is taken as an
      exception, even if it was due to an AT instruction. (DDI0487F.a's D5.2.11
      "Synchronous faults generated by address translation instructions")
      
      While we previously made KVM resilient to exceptions taken due to AT
      instructions, the device access causes mismatched attributes, and may
      occur speculatively. Prevent this, by forbidding a walk through memory
      described as device at stage2. Now such AT instructions will report a
      stage2 fault.
      
      Such a fault will cause KVM to restart the guest. If the AT instructions
      always walk the page tables, but guest execution uses the translation cached
      in the TLB, the guest can't make forward progress until the TLB entry is
      evicted. This isn't a problem, as since commit 5dcd0fdb ("KVM: arm64:
      Defer guest entry when an asynchronous exception is pending"), KVM will
      return to the host to process IRQs allowing the rest of the system to keep
      running.
      
      Cc: stable@vger.kernel.org # <v5.3: 5dcd0fdb
      
       ("KVM: arm64: Defer guest entry when an asynchronous exception is pending")
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      71a7f8cb
    • James Morse's avatar
      KVM: arm64: Survive synchronous exceptions caused by AT instructions · 88a84ccc
      James Morse authored
      KVM doesn't expect any synchronous exceptions when executing, any such
      exception leads to a panic(). AT instructions access the guest page
      tables, and can cause a synchronous external abort to be taken.
      
      The arm-arm is unclear on what should happen if the guest has configured
      the hardware update of the access-flag, and a memory type in TCR_EL1 that
      does not support atomic operations. B2.2.6 "Possible implementation
      restrictions on using atomic instructions" from DDI0487F.a lists
      synchronous external abort as a possible behaviour of atomic instructions
      that target memory that isn't writeback cacheable, but the page table
      walker may behave differently.
      
      Make KVM robust to synchronous exceptions caused by AT instructions.
      Add a get_user() style helper for AT instructions that returns -EFAULT
      if an exception was generated.
      
      While KVM's version of the exception table mixes synchronous and
      asynchronous exceptions, only one of these can occur at each location.
      
      Re-enter the guest when the AT instructions take an exception on the
      assumption the guest will take the same exception. This isn't guaranteed
      to make forward progress, as the AT instructions may always walk the page
      tables, but guest execution may use the translation cached in the TLB.
      
      This isn't a problem, as since commit 5dcd0fdb ("KVM: arm64: Defer guest
      entry when an asynchronous exception is pending"), KVM will return to the
      host to process IRQs allowing the rest of the system to keep running.
      
      Cc: stable@vger.kernel.org # <v5.3: 5dcd0fdb
      
       ("KVM: arm64: Defer guest entry when an asynchronous exception is pending")
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      88a84ccc
    • James Morse's avatar
      KVM: arm64: Add kvm_extable for vaxorcism code · e9ee186b
      James Morse authored
      
      
      KVM has a one instruction window where it will allow an SError exception
      to be consumed by the hypervisor without treating it as a hypervisor bug.
      This is used to consume asynchronous external abort that were caused by
      the guest.
      
      As we are about to add another location that survives unexpected exceptions,
      generalise this code to make it behave like the host's extable.
      
      KVM's version has to be mapped to EL2 to be accessible on nVHE systems.
      
      The SError vaxorcism code is a one instruction window, so has two entries
      in the extable. Because the KVM code is copied for VHE and nVHE, we end up
      with four entries, half of which correspond with code that isn't mapped.
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      e9ee186b
    • Jens Axboe's avatar
      Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.9 · a433d721
      Jens Axboe authored
      Pull MD fix from Song.
      
      * 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
        md/raid5: make sure stripe_size as power of two
      a433d721
    • Frank van der Linden's avatar
      arm64: vdso32: make vdso32 install conditional · 5d28ba5f
      Frank van der Linden authored
      vdso32 should only be installed if CONFIG_COMPAT_VDSO is enabled,
      since it's not even supposed to be compiled otherwise, and arm64
      builds without a 32bit crosscompiler will fail.
      
      Fixes: 8d75785a
      
       ("ARM64: vdso32: Install vdso32 from vdso_install")
      Signed-off-by: default avatarFrank van der Linden <fllinden@amazon.com>
      Cc: stable@vger.kernel.org [5.4+]
      Link: https://lore.kernel.org/r/20200827234012.19757-1-fllinden@amazon.com
      
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      5d28ba5f
    • Sami Tolvanen's avatar
      arm64: use a common .arch preamble for inline assembly · 1764c3ed
      Sami Tolvanen authored
      Commit 7c78f67e ("arm64: enable tlbi range instructions") breaks
      LLVM's integrated assembler, because -Wa,-march is only passed to
      external assemblers and therefore, the new instructions are not enabled
      when IAS is used.
      
      This change adds a common architecture version preamble, which can be
      used in inline assembly blocks that contain instructions that require
      a newer architecture version, and uses it to fix __TLBI_0 and __TLBI_1
      with ARM64_TLB_RANGE.
      
      Fixes: 7c78f67e
      
       ("arm64: enable tlbi range instructions")
      Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
      Tested-by: default avatarNathan Chancellor <natechancellor@gmail.com>
      Reviewed-by: default avatarNathan Chancellor <natechancellor@gmail.com>
      Link: https://github.com/ClangBuiltLinux/linux/issues/1106
      Link: https://lore.kernel.org/r/20200827203608.1225689-1-samitolvanen@google.com
      
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      1764c3ed
    • Lee Jones's avatar
      mfd: mfd-core: Ensure disabled devices are ignored without error · 22380b65
      Lee Jones authored
      
      
      Commit e49aa9a9bd22 ("mfd: core: Make a best effort attempt to match
      devices with the correct of_nodes") changed the semantics for disabled
      devices in mfd_add_device().  Instead of silently ignoring a disabled
      child device, an error was returned.  On receipt of the error
      mfd_add_devices() the precedes to remove *all* child devices and
      returns an all-failed error to the caller, which will inevitably fail
      the parent device as well.
      
      This patch reverts back to the old semantics and ignores child devices
      which are disabled in Device Tree.
      
      Fixes: e49aa9a9bd22 ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes")
      Reported-by: default avatarIcenowy Zheng <icenowy@aosc.io>
      Tested-by: default avatarIcenowy Zheng <icenowy@aosc.io>
      Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
      22380b65
    • Yufen Yu's avatar
      md/raid5: make sure stripe_size as power of two · 6af10a33
      Yufen Yu authored
      Commit 3b5408b9 ("md/raid5: support config stripe_size by sysfs
      entry") make stripe_size as a configurable value. It just requires
      stripe_size as multiple of 4KB.
      
      In fact, we should make sure stripe_size as power of two. Otherwise,
      stripe_shift which is the result of ilog2 can not represent the real
      stripe_size. Then, stripe_hash() and stripe_hash_locks_hash() may
      get unexpected value.
      
      Fixes: 3b5408b9
      
       ("md/raid5: support config stripe_size by sysfs entry")
      Signed-off-by: default avatarYufen Yu <yuyufen@huawei.com>
      Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
      6af10a33
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2020-08-27' of... · 2a3f9da3
      Dave Airlie authored
      Merge tag 'drm-intel-fixes-2020-08-27' of git://anongit.freedesktop.org/drm/drm-intel
      
       into drm-fixes
      
      drm/i915 fixes for v5.9-rc3:
      - Fix command parser desc matching with masks
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      From: Jani Nikula <jani.nikula@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/87imd45ufw.fsf@intel.com
      2a3f9da3
    • Dave Airlie's avatar
      Merge tag 'drm-misc-fixes-2020-08-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes · c2b2f02a
      Dave Airlie authored
      
      
      Fixes for v5.9-rc2:
      - Take modeset bkl for legacy drivers.
      - Allow null crtc in dp_mst.
      - Omap locking state fix.
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      
      From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/7af1e52a-27de-8edc-d0b2-e23b01e8bc96@linux.intel.com
      c2b2f02a
  3. 27 Aug, 2020 12 commits