1. 10 Feb, 2020 6 commits
  2. 09 Feb, 2020 12 commits
    • Linus Torvalds's avatar
      Merge tag 'zonefs-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs · 380a129e
      Linus Torvalds authored
      Pull new zonefs file system from Damien Le Moal:
       "Zonefs is a very simple file system exposing each zone of a zoned
        block device as a file.
      
        Unlike a regular file system with native zoned block device support
        (e.g. f2fs or the on-going btrfs effort), zonefs does not hide the
        sequential write constraint of zoned block devices to the user. As a
        result, zonefs is not a POSIX compliant file system. Its goal is to
        simplify the implementation of zoned block devices support in
        applications by replacing raw block device file accesses with a richer
        file based API, avoiding relying on direct block device file ioctls
        which may be more obscure to developers.
      
        One example of this approach is the implementation of LSM
        (log-structured merge) tree structures (such as used in RocksDB and
        LevelDB) on zoned block devices by allowing SSTables to be stored in a
        zone file similarly to a regular file system rather than as a range of
        sectors of a zoned device. The introduction of the higher level
        construct "one file is one zone" can help reducing the amount of
        changes needed in the application while at the same time allowing the
        use of zoned block devices with various programming languages other
        than C.
      
        Zonefs IO management implementation uses the new iomap generic code.
        Zonefs has been successfully tested using a functional test suite
        (available with zonefs userland format tool on github) and a prototype
        implementation of LevelDB on top of zonefs"
      
      * tag 'zonefs-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
        zonefs: Add documentation
        fs: New zonefs file system
      380a129e
    • Marc Zyngier's avatar
      irqchip/gic-v4.1: Avoid 64bit division for the sake of 32bit ARM · 490d332e
      Marc Zyngier authored
      In order to allow the GICv4 code to link properly on 32bit ARM,
      make sure we don't use 64bit divisions when it isn't strictly
      necessary.
      
      Fixes: 4e6437f1
      
       ("irqchip/gic-v4.1: Ensure L2 vPE table is allocated at RD level")
      Reported-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
      Cc: Zenghui Yu <yuzenghui@huawei.com>
      Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      490d332e
    • Linus Torvalds's avatar
      Merge tag '5.6-rc-smb3-plugfest-patches' of git://git.samba.org/sfrench/cifs-2.6 · d1ea35f4
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
       "13 cifs/smb3 patches, most from testing at the SMB3 plugfest this week:
      
         - Important fix for multichannel and for modefromsid mounts.
      
         - Two reconnect fixes
      
         - Addition of SMB3 change notify support
      
         - Backup tools fix
      
         - A few additional minor debug improvements (tracepoints and
           additional logging found useful during testing this week)"
      
      * tag '5.6-rc-smb3-plugfest-patches' of git://git.samba.org/sfrench/cifs-2.6:
        smb3: Add defines for new information level, FileIdInformation
        smb3: print warning once if posix context returned on open
        smb3: add one more dynamic tracepoint missing from strict fsync path
        cifs: fix mode bits from dir listing when mounted with modefromsid
        cifs: fix channel signing
        cifs: add SMB3 change notification support
        cifs: make multichannel warning more visible
        cifs: fix soft mounts hanging in the reconnect code
        cifs: Add tracepoints for errors on flush or fsync
        cifs: log warning message (once) if out of disk space
        cifs: fail i/o on soft mounts if sessionsetup errors out
        smb3: fix problem with null cifs super block with previous patch
        SMB3: Backup intent flag missing from some more ops
      d1ea35f4
    • Linus Torvalds's avatar
      Merge branch 'work.vboxsf' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 5586c3c1
      Linus Torvalds authored
      Pull vboxfs from Al Viro:
       "This is the VirtualBox guest shared folder support by Hans de Goede,
        with fixups for fs_parse folded in to avoid bisection hazards from
        those API changes..."
      
      * 'work.vboxsf' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        fs: Add VirtualBox guest shared folder (vboxsf) support
      5586c3c1
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1a2a76c2
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A set of fixes for X86:
      
         - Ensure that the PIT is set up when the local APIC is disable or
           configured in legacy mode. This is caused by an ordering issue
           introduced in the recent changes which skip PIT initialization when
           the TSC and APIC frequencies are already known.
      
         - Handle malformed SRAT tables during early ACPI parsing which caused
           an infinite loop anda boot hang.
      
         - Fix a long standing race in the affinity setting code which affects
           PCI devices with non-maskable MSI interrupts. The problem is caused
           by the non-atomic writes of the MSI address (destination APIC id)
           and data (vector) fields which the device uses to construct the MSI
           message. The non-atomic writes are mandated by PCI.
      
           If both fields change and the device raises an interrupt after
           writing address and before writing data, then the MSI block
           constructs a inconsistent message which causes interrupts to be
           lost and subsequent malfunction of the device.
      
           The fix is to redirect the interrupt to the new vector on the
           current CPU first and then switch it over to the new target CPU.
           This allows to observe an eventually raised interrupt in the
           transitional stage (old CPU, new vector) to be observed in the APIC
           IRR and retriggered on the new target CPU and the new vector.
      
           The potential spurious interrupts caused by this are harmless and
           can in the worst case expose a buggy driver (all handlers have to
           be able to deal with spurious interrupts as they can and do happen
           for various reasons).
      
         - Add the missing suspend/resume mechanism for the HYPERV hypercall
           page which prevents resume hibernation on HYPERV guests. This
           change got lost before the merge window.
      
         - Mask the IOAPIC before disabling the local APIC to prevent
           potentially stale IOAPIC remote IRR bits which cause stale
           interrupt lines after resume"
      
      * tag 'x86-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic: Mask IOAPIC entries when disabling the local APIC
        x86/hyperv: Suspend/resume the hypercall page for hibernation
        x86/apic/msi: Plug non-maskable MSI affinity race
        x86/boot: Handle malformed SRAT tables during early ACPI parsing
        x86/timer: Don't skip PIT setup when APIC is disabled or in legacy mode
      1a2a76c2
    • Linus Torvalds's avatar
      Merge tag 'smp-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f4137760
      Linus Torvalds authored
      Pull SMP fixes from Thomas Gleixner:
       "Two fixes for the SMP related functionality:
      
         - Make the UP version of smp_call_function_single() match SMP
           semantics when called for a not available CPU. Instead of emitting
           a warning and assuming that the function call target is CPU0,
           return a proper error code like the SMP version does.
      
         - Remove a superfluous check in smp_call_function_many_cond()"
      
      * tag 'smp-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        smp/up: Make smp_call_function_single() match SMP semantics
        smp: Remove superfluous cond_func check in smp_call_function_many_cond()
      f4137760
    • Linus Torvalds's avatar
      Merge tag 'perf-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ca21b9b3
      Linus Torvalds authored
      Pull perf fixes from Thomas Gleixner:
       "A set of fixes and improvements for the perf subsystem:
      
        Kernel fixes:
      
         - Install cgroup events to the correct CPU context to prevent a
           potential list double add
      
         - Prevent an integer underflow in the perf mlock accounting
      
         - Add a missing prototype for arch_perf_update_userpage()
      
        Tooling:
      
         - Add a missing unlock in the error path of maps__insert() in perf
           maps.
      
         - Fix the build with the latest libbfd
      
         - Fix the perf parser so it does not delete parse event terms, which
           caused a regression for using perf with the ARM CoreSight as the
           sink configuration was missing due to the deletion.
      
         - Fix the double free in the perf CPU map merging test case
      
         - Add the missing ustring support for the perf probe command"
      
      * tag 'perf-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf maps: Add missing unlock to maps__insert() error case
        perf probe: Add ustring support for perf probe command
        perf: Make perf able to build with latest libbfd
        perf test: Fix test case Merge cpu map
        perf parse: Copy string to perf_evsel_config_term
        perf parse: Refactor 'struct perf_evsel_config_term'
        kernel/events: Add a missing prototype for arch_perf_update_userpage()
        perf/cgroups: Install cgroup events to correct cpuctx
        perf/core: Fix mlock accounting in perf_mmap()
      ca21b9b3
    • Linus Torvalds's avatar
      Merge tag 'timers-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2fbc23c7
      Linus Torvalds authored
      Pull timer fixes from Thomas Gleixner:
       "Two small fixes for the time(r) subsystem:
      
         - Handle a subtle race between the clocksource watchdog and a
           concurrent clocksource watchdog stop/start sequence correctly to
           prevent a timer double add bug.
      
         - Fix the file path for the core time namespace file"
      
      * tag 'timers-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        clocksource: Prevent double add_timer_on() for watchdog_timer
        MAINTAINERS: Correct path to time namespace source file
      2fbc23c7
    • Linus Torvalds's avatar
      Merge tag 'irq-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f06bed87
      Linus Torvalds authored
      Pull interrupt fixes from Thomas Gleixner:
       "A set of fixes for the interrupt subsystem:
      
         - Provision only ACPI enabled redistributors on GICv3
      
         - Use the proper command colums when building the INVALL command for
           the GICv3-ITS
      
         - Ensure the allocation of the L2 vPE table for GICv4.1
      
         - Correct the GICv4.1 VPROBASER programming so it uses the proper
           size
      
         - A set of small GICv4.1 tidy up patches
      
         - Configuration cleanup for C-SKY interrupt chip
      
         - Clarify the function documentation for irq_set_wake() to document
           that the wakeup functionality is orthogonal to the irq
           disable/enable mechanism"
      
      * tag 'irq-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip/gic-v3-its: Rename VPENDBASER/VPROPBASER accessors
        irqchip/gic-v3-its: Remove superfluous WARN_ON
        irqchip/gic-v4.1: Drop 'tmp' in inherit_vpe_l1_table_from_rd()
        irqchip/gic-v4.1: Ensure L2 vPE table is allocated at RD level
        irqchip/gic-v4.1: Set vpe_l1_base for all redistributors
        irqchip/gic-v4.1: Fix programming of GICR_VPROPBASER_4_1_SIZE
        genirq: Clarify that irq wake state is orthogonal to enable/disable
        irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL
        irqchip: Some Kconfig cleanup for C-SKY
        irqchip/gic-v3: Only provision redistributors that are enabled in ACPI
      f06bed87
    • Linus Torvalds's avatar
      Merge tag 'efi-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6ff90aa2
      Linus Torvalds authored
      Pull EFI fix from Thomas Gleixner:
       "A single fix for a EFI boot regression on X86 which was caused by the
        recent rework of the EFI memory map parsing. On systems with invalid
        memmap entries the cleanup function uses an value which cannot be
        relied on in this stage. Use the actual EFI memmap entry instead"
      
      * tag 'efi-urgent-2020-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/x86: Fix boot regression on systems with invalid memmap entries
      6ff90aa2
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · fdfa3a67
      Linus Torvalds authored
      Pull misc SCSI fixes from James Bottomley:
       "Five small patches, all in drivers or doc, which missed the initial
        pull request.
      
        The qla2xxx and megaraid_sas are actual fixes and the rest are
        spelling and doc changes"
      
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: ufs: fix spelling mistake "initilized" -> "initialized"
        scsi: pm80xx: fix spelling mistake "to" -> "too"
        scsi: MAINTAINERS: ufs: remove pedrom.sousa@synopsys.com
        scsi: megaraid_sas: fixup MSIx interrupt setup during resume
        scsi: qla2xxx: Fix unbound NVME response length
      fdfa3a67
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 291abfea
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Unbalanced locking in mwifiex_process_country_ie, from Brian Norris.
      
       2) Fix thermal zone registration in iwlwifi, from Andrei
          Otcheretianski.
      
       3) Fix double free_irq in sgi ioc3 eth, from Thomas Bogendoerfer.
      
       4) Use after free in mptcp, from Florian Westphal.
      
       5) Use after free in wireguard's root_remove_peer_lists, from Eric
          Dumazet.
      
       6) Properly access packets heads in bonding alb code, from Eric
          Dumazet.
      
       7) Fix data race in skb_queue_len(), from Qian Cai.
      
       8) Fix regression in r8169 on some chips, from Heiner Kallweit.
      
       9) Fix XDP program ref counting in hv_netvsc, from Haiyang Zhang.
      
      10) Certain kinds of set link netlink operations can cause a NULL deref
          in the ipv6 addrconf code. Fix from Eric Dumazet.
      
      11) Don't cancel uninitialized work queue in drop monitor, from Ido
          Schimmel.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
        net: thunderx: use proper interface type for RGMII
        mt76: mt7615: fix max_nss in mt7615_eeprom_parse_hw_cap
        bpf: Improve bucket_log calculation logic
        selftests/bpf: Test freeing sockmap/sockhash with a socket in it
        bpf, sockhash: Synchronize_rcu before free'ing map
        bpf, sockmap: Don't sleep while holding RCU lock on tear-down
        bpftool: Don't crash on missing xlated program instructions
        bpf, sockmap: Check update requirements after locking
        drop_monitor: Do not cancel uninitialized work item
        mlxsw: spectrum_dpipe: Add missing error path
        mlxsw: core: Add validation of hardware device types for MGPIR register
        mlxsw: spectrum_router: Clear offload indication from IPv6 nexthops on abort
        selftests: mlxsw: Add test cases for local table route replacement
        mlxsw: spectrum_router: Prevent incorrect replacement of local table routes
        net: dsa: microchip: enable module autoprobe
        ipv6/addrconf: fix potential NULL deref in inet6_set_link_af()
        dpaa_eth: support all modes with rate adapting PHYs
        net: stmmac: update pci platform data to use phy_interface
        net: stmmac: xgmac: fix missing IFF_MULTICAST checki in dwxgmac2_set_filter
        net: stmmac: fix missing IFF_MULTICAST check in dwmac4_set_filter
        ...
      291abfea
  3. 08 Feb, 2020 22 commits
    • Hans de Goede's avatar
      fs: Add VirtualBox guest shared folder (vboxsf) support · 0fd16957
      Hans de Goede authored
      
      
      VirtualBox hosts can share folders with guests, this commit adds a
      VFS driver implementing the Linux-guest side of this, allowing folders
      exported by the host to be mounted under Linux.
      
      This driver depends on the guest <-> host IPC functions exported by
      the vboxguest driver.
      Acked-by: default avatarChristoph Hellwig <hch@infradead.org>
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      0fd16957
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · d4f309ca
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
      
       - Fix an existing bug in our user access handling, exposed by one of
         the bug fixes we merged this cycle.
      
       - A fix for a boot hang on 32-bit with CONFIG_TRACE_IRQFLAGS and the
         recently added CONFIG_VMAP_STACK.
      
      Thanks to: Christophe Leroy, Guenter Roeck.
      
      * tag 'powerpc-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK
        powerpc/futex: Fix incorrect user access blocking
      d4f309ca
    • Linus Torvalds's avatar
      Fix up remaining devm_ioremap_nocache() in SGI IOC3 8250 UART driver · b0ef7cda
      Linus Torvalds authored
      This is a merge error on my part - the driver was merged into mainline
      by commit c5951e7c ("Merge tag 'mips_5.6' of git://../mips/linux")
      over a week ago, but nobody apparently noticed that it didn't actually
      build due to still having a reference to the devm_ioremap_nocache()
      function, removed a few days earlier through commit 6a1000bd ("Merge
      tag 'ioremap-5.6' of git://../ioremap"
      
      ).
      
      Apparently this didn't get any build testing anywhere.  Not perhaps all
      that surprising: it's restricted to 64-bit MIPS only, and only with the
      new SGI_MFD_IOC3 support enabled.
      
      I only noticed because the ioremap conflicts in the ARM SoC driver
      update made me check there weren't any others hiding, and I found this
      one.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b0ef7cda
    • Linus Torvalds's avatar
      Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 4ef1a30c
      Linus Torvalds authored
      Pull ARM SoC late updates from Olof Johansson:
       "This is some material that we picked up into our tree late, or that
        had more complex dependencies on more than one topic branch that makes
        sense to keep separately.
      
         - TI support for secure accelerators and hwrng on OMAP4/5
      
         - TI camera changes for dra7 and am437x and SGX improvement due to
           better reset control support on am335x, am437x and dra7
      
         - Davinci moves to proper clocksource on DM365, and regulator/audio
           improvements for DM365 and DM644x eval boards"
      
      * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (32 commits)
        ARM: dts: omap4-droid4: Enable hdq for droid4 ds250x 1-wire battery nvmem
        ARM: dts: motorola-cpcap-mapphone: Configure calibration interrupt
        ARM: dts: Configure interconnect target module for am437x sgx
        ARM: dts: Configure sgx for dra7
        ARM: dts: Configure rstctrl reset for am335x SGX
        ARM: dts: dra7: Add ti-sysc node for VPE
        ARM: dts: dra7: add vpe clkctrl node
        ARM: dts: am43x-epos-evm: Add VPFE and OV2659 entries
        ARM: dts: am437x-sk-evm: Add VPFE and OV2659 entries
        ARM: dts: am43xx: add support for clkout1 clock
        arm: dts: dra76-evm: Add CAL and OV5640 nodes
        arm: dtsi: dra76x: Add CAL dtsi node
        arm: dts: dra72-evm-common: Add entries for the CSI2 cameras
        ARM: dts: DRA72: Add CAL dtsi node
        ARM: dts: dra7-l4: Add ti-sysc node for CAM
        ARM: OMAP: DRA7xx: Make CAM clock domain SWSUP only
        ARM: dts: dra7: add cam clkctrl node
        ARM: OMAP2+: Drop legacy platform data for omap4 des
        ARM: OMAP2+: Drop legacy platform data for omap4 sham
        ARM: OMAP2+: Drop legacy platform data for omap4 aes
        ...
      4ef1a30c
    • Linus Torvalds's avatar
      Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 5939224c
      Linus Torvalds authored
      Pull ARM SoC defconfig updates from Olof Johansson:
       "We keep this in a separate branch to avoid cross-branch conflicts, but
        most of the material here is fairly boring -- some new drivers turned
        on for hardware since they were merged, and some refreshed files due
        to time having moved a lot of entries around"
      
      * tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (38 commits)
        ARM: configs: at91: enable MMC_SDHCI_OF_AT91 and MICROCHIP_PIT64B
        arm64: defconfig: Enable Broadcom's GENET Ethernet controller
        ARM: multi_v7_defconfig: Enable devfreq thermal integration
        ARM: exynos_defconfig: Enable devfreq thermal integration
        ARM: multi_v7_defconfig: Enable NFS v4.1 and v4.2
        ARM: exynos_defconfig: Enable NFS v4.1 and v4.2
        arm64: defconfig: Enable Actions Semi specific drivers
        arm64: defconfig: Enable Broadcom's STB PCIe controller
        arm64: defconfig: Enable CONFIG_CLK_IMX8MP by default
        ARM: configs: at91: enable config flags for sam9x60 SoC
        ARM: configs: at91: use savedefconfig
        arm64: defconfig: Enable tegra XUDC support
        ARM: defconfig: gemini: Update defconfig
        arm64: defconfig: enable CONFIG_ARM_QCOM_CPUFREQ_NVMEM
        arm64: defconfig: enable CONFIG_QCOM_CPR
        arm64: defconfig: Enable HFPLL
        arm64: defconfig: Enable CRYPTO_DEV_FSL_CAAM
        ARM: imx_v6_v7_defconfig: Select the TFP410 driver
        ARM: imx_v6_v7_defconfig: Enable NFS_V4_1 and NFS_V4_2 support
        arm64: defconfig: Enable ATH10K_SNOC
        ...
      5939224c
    • Linus Torvalds's avatar
      Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · eab35405
      Linus Torvalds authored
      Pull ARM SoC-related driver updates from Olof Johansson:
       "Various driver updates for platforms:
      
         - Nvidia: Fuse support for Tegra194, continued memory controller
           pieces for Tegra30
      
         - NXP/FSL: Refactorings of QuickEngine drivers to support
           ARM/ARM64/PPC
      
         - NXP/FSL: i.MX8MP SoC driver pieces
      
         - TI Keystone: ring accelerator driver
      
         - Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.
      
         - Xilinx ZynqMP: feature checking interface for firmware. Mailbox
           communication for power management
      
         - Overall support patch set for cpuidle on more complex hierarchies
           (PSCI-based)
      
        and misc cleanups, refactorings of Marvell, TI, other platforms"
      
      * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (166 commits)
        drivers: soc: xilinx: Use mailbox IPI callback
        dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox
        drivers: soc: ti: knav_qmss_queue: Pass lockdep expression to RCU lists
        MAINTAINERS: Add brcmstb PCIe controller entry
        soc/tegra: fuse: Unmap registers once they are not needed anymore
        soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
        soc/tegra: fuse: Warn if straps are not ready
        soc/tegra: fuse: Cache values of straps and Chip ID registers
        memory: tegra30-emc: Correct error message for timed out auto calibration
        memory: tegra30-emc: Firm up hardware programming sequence
        memory: tegra30-emc: Firm up suspend/resume sequence
        soc/tegra: regulators: Do nothing if voltage is unchanged
        memory: tegra: Correct reset value of xusb_hostr
        soc/tegra: fuse: Add APB DMA dependency for Tegra20
        bus: tegra-aconnect: Remove PM_CLK dependency
        dt-bindings: mediatek: add MT6765 power dt-bindings
        soc: mediatek: cmdq: delete not used define
        memory: tegra: Add support for the Tegra194 memory controller
        memory: tegra: Only include support for enabled SoCs
        memory: tegra: Support DVFS on Tegra186 and later
        ...
      eab35405
    • Linus Torvalds's avatar
      Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 1afa9c3b
      Linus Torvalds authored
      Pull ARM Device-tree updates from Olof Johansson:
       "New SoCs:
      
         - Atmel/Microchip SAM9X60 (ARM926 SoC)
      
         - OMAP 37xx gets split into AM3703/AM3715/DM3725, who are all
           variants of it with different GPU/media IP configurations.
      
         - ST stm32mp15 SoCs (1-2 Cortex-A7, CAN, GPU depending on SKU)
      
         - ST Ericsson ab8505 (variant of ab8500) and db8520 (variant of
           db8500)
      
         - Unisoc SC9863A SoC (8x Cortex-A55 mobile chipset w/ GPU, modem)
      
         - Qualcomm SC7180 (8-core 64bit SoC, unnamed CPU class)
      
        New boards:
      
         - Allwinner:
            + Emlid Neutis SoM (H3 variant)
            + Libre Computer ALL-H3-IT
            + PineH64 Model B
      
         - Amlogic:
            + Libretech Amlogic GX PC (s905d and s912-based variants)
      
         - Atmel/Microchip:
            + Kizboxmini, sam9x60 EK, sama5d27 Wireless SOM (wlsom1)
      
         - Marvell:
            + Armada 385-based SolidRun Clearfog GTR
      
         - NXP:
            + Gateworks GW59xx boards based on i.MX6/6Q/6QDL
            + Tolino Shine 3 eBook reader (i.MX6sl)
            + Embedded Artists COM (i.MX7ULP)
            + SolidRun CLearfog CX/ITX and HoneyComb (LX2160A-based systems)
            + Google Coral Edge TPU (i.MX8MQ)
      
         - Rockchip:
            + Radxa Dalang Carrier (supports rk3288 and rk3399 SOMs)
            + Radxa Rock Pi N10 (RK3399Pro-based)
            + VMARC RK3399Pro SOM
      
         - ST:
            + Reference boards for stm32mp15
      
         - ST Ericsson:
            + Samsung Galaxy S III mini (GT-I8190)
            + HREF520 reference board for DB8520
      
         - TI OMAP:
            + Gen1 Amazon Echo (OMAP3630-based)
      
         - Qualcomm:
            + Inforce 6640 Single Board Computer (msm8996-based)
            + SC7180 IDP (SC7180-based)"
      
      * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (623 commits)
        dt-bindings: fix compilation error of the example in marvell,mmp3-hsic-phy.yaml
        arm64: dts: ti: k3-am654-base-board: Add CSI2 OV5640 camera
        arm64: dts: ti: k3-am65-main Add CAL node
        arm64: dts: ti: k3-j721e-main: Add McASP nodes
        arm64: dts: ti: k3-am654-main: Add McASP nodes
        arm64: dts: ti: k3-j721e: DMA support
        arm64: dts: ti: k3-j721e-main: Move secure proxy and smmu under main_navss
        arm64: dts: ti: k3-j721e-main: Correct main NAVSS representation
        arm64: dts: ti: k3-j721e: Correct the address for MAIN NAVSS
        arm64: dts: ti: k3-am65: DMA support
        arm64: dts: ti: k3-am65-main: Move secure proxy under cbass_main_navss
        arm64: dts: ti: k3-am65-main: Correct main NAVSS representation
        ARM: dts: aspeed: rainier: Add UCD90320 power sequencer
        ARM: dts: aspeed: rainier: Switch PSUs to unknown version
        arm64: dts: rockchip: Kill off "simple-panel" compatibles
        ARM: dts: rockchip: Kill off "simple-panel" compatibles
        arm64: dts: rockchip: rename dwmmc node names to mmc
        ARM: dts: rockchip: rename dwmmc node names to mmc
        arm64: dts: exynos: Rename Samsung and Exynos to lowercase
        arm64: dts: uniphier: add reset-names to NAND controller node
        ...
      1afa9c3b
    • Linus Torvalds's avatar
      Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc · 469030d4
      Linus Torvalds authored
      Pull ARM SoC platform updates from Olof Johansson:
       "Most of these are smaller fixes that have accrued, and some continued
        cleanup of OMAP platforms towards shared frameworks.
      
        One new SoC from Atmel/Microchip: sam9x60"
      
      * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (35 commits)
        ARM: OMAP2+: Fix undefined reference to omap_secure_init
        ARM: s3c64xx: Drop unneeded select of TIMER_OF
        ARM: exynos: Drop unneeded select of MIGHT_HAVE_CACHE_L2X0
        ARM: s3c24xx: Switch to atomic pwm API in rx1950
        ARM: OMAP2+: sleep43xx: Call secure suspend/resume handlers
        ARM: OMAP2+: Use ARM SMC Calling Convention when OP-TEE is available
        ARM: OMAP2+: Introduce check for OP-TEE in omap_secure_init()
        ARM: OMAP2+: Add omap_secure_init callback hook for secure initialization
        ARM: at91: Documentation: add sam9x60 product and datasheet
        ARM: at91: pm: use of_device_id array to find the proper shdwc node
        ARM: at91: pm: use SAM9X60 PMC's compatible
        ARM: imx: only select ARM_ERRATA_814220 for ARMv7-A
        ARM: zynq: use physical cpuid in zynq_slcr_cpu_stop/start
        ARM: tegra: Use clk_m CPU on Tegra124 LP1 resume
        ARM: tegra: Modify reshift divider during LP1
        ARM: tegra: Enable PLLP bypass during Tegra124 LP1
        ARM: samsung: Rename Samsung and Exynos to lowercase
        ARM: exynos: Correct the help text for platform Kconfig option
        ARM: bcm: Select ARM_AMBA for ARCH_BRCMSTB
        ARM: brcmstb: Add debug UART entry for 7216
        ...
      469030d4
    • Linus Torvalds's avatar
      Merge tag 'compat-ioctl-fix' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground · b85080c1
      Linus Torvalds authored
      Pull compat-ioctl fix from Arnd Bergmann:
       "One patch in the compat-ioctl series broke 32-bit rootfs for multiple
        people testing on 64-bit kernels. Let's fix it in -rc1 before others
        run into the same issue"
      
      * tag 'compat-ioctl-fix' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground:
        compat_ioctl: fix FIONREAD on devices
      b85080c1
    • Linus Torvalds's avatar
      Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · c9d35ee0
      Linus Torvalds authored
      Pull vfs file system parameter updates from Al Viro:
       "Saner fs_parser.c guts and data structures. The system-wide registry
        of syntax types (string/enum/int32/oct32/.../etc.) is gone and so is
        the horror switch() in fs_parse() that would have to grow another case
        every time something got added to that system-wide registry.
      
        New syntax types can be added by filesystems easily now, and their
        namespace is that of functions - not of system-wide enum members. IOW,
        they can be shared or kept private and if some turn out to be widely
        useful, we can make them common library helpers, etc., without having
        to do anything whatsoever to fs_parse() itself.
      
        And we already get that kind of requests - the thing that finally
        pushed me into doing that was "oh, and let's add one for timeouts -
        things like 15s or 2h". If some filesystem really wants that, let them
        do it. Without somebody having to play gatekeeper for the variants
        blessed by direct support in fs_parse(), TYVM.
      
        Quite a bit of boilerplate is gone. And IMO the data structures make a
        lot more sense now. -200LoC, while we are at it"
      
      * 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (25 commits)
        tmpfs: switch to use of invalfc()
        cgroup1: switch to use of errorfc() et.al.
        procfs: switch to use of invalfc()
        hugetlbfs: switch to use of invalfc()
        cramfs: switch to use of errofc() et.al.
        gfs2: switch to use of errorfc() et.al.
        fuse: switch to use errorfc() et.al.
        ceph: use errorfc() and friends instead of spelling the prefix out
        prefix-handling analogues of errorf() and friends
        turn fs_param_is_... into functions
        fs_parse: handle optional arguments sanely
        fs_parse: fold fs_parameter_desc/fs_parameter_spec
        fs_parser: remove fs_parameter_description name field
        add prefix to fs_context->log
        ceph_parse_param(), ceph_parse_mon_ips(): switch to passing fc_log
        new primitive: __fs_parse()
        switch rbd and libceph to p_log-based primitives
        struct p_log, variants of warnf() et.al. taking that one instead
        teach logfc() to handle prefices, give it saner calling conventions
        get rid of cg_invalf()
        ...
      c9d35ee0
    • Linus Torvalds's avatar
      Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 236f4532
      Linus Torvalds authored
      Pull misc vfs updates from Al Viro:
      
       - bmap series from cmaiolino
      
       - getting rid of convolutions in copy_mount_options() (use a couple of
         copy_from_user() instead of the __get_user() crap)
      
      * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        saner copy_mount_options()
        fibmap: Reject negative block numbers
        fibmap: Use bmap instead of ->bmap method in ioctl_fibmap
        ecryptfs: drop direct calls to ->bmap
        cachefiles: drop direct usage of ->bmap method.
        fs: Enable bmap() function to properly return errors
      236f4532
    • Linus Torvalds's avatar
      Merge branch 'pipe-exclusive-wakeup' · 99593330
      Linus Torvalds authored
      Merge thundering herd avoidance on pipe IO.
      
      This would have been applied for 5.5 already, but got delayed because of
      a user-space race condition in the GNU make jobserver code.  Now that
      there's a new GNU make 4.3 release, and most distributions seem to have
      at least applied the (almost three year old) fix for the problem, let's
      see if people notice.
      
      And it might have been just bad random timing luck on my machine.
      
      If you do hit the race condition, things will still work, but the
      symptom is that you don't get nearly the expected parallelism when using
      "make -j<N>".
      
      The jobserver bug can definitely happen without this patch too, but
      seems to be easier to trigger when we no longer wake up pipe waiters
      unnecessarily.
      
      * pipe-exclusive-wakeup:
        pipe: use exclusive waits when reading or writing
      99593330
    • Linus Torvalds's avatar
      pipe: use exclusive waits when reading or writing · 0ddad21d
      Linus Torvalds authored
      
      
      This makes the pipe code use separate wait-queues and exclusive waiting
      for readers and writers, avoiding a nasty thundering herd problem when
      there are lots of readers waiting for data on a pipe (or, less commonly,
      lots of writers waiting for a pipe to have space).
      
      While this isn't a common occurrence in the traditional "use a pipe as a
      data transport" case, where you typically only have a single reader and
      a single writer process, there is one common special case: using a pipe
      as a source of "locking tokens" rather than for data communication.
      
      In particular, the GNU make jobserver code ends up using a pipe as a way
      to limit parallelism, where each job consumes a token by reading a byte
      from the jobserver pipe, and releases the token by writing a byte back
      to the pipe.
      
      This pattern is fairly traditional on Unix, and works very well, but
      will waste a lot of time waking up a lot of processes when only a single
      reader needs to be woken up when a writer releases a new token.
      
      A simplified test-case of just this pipe interaction is to create 64
      processes, and then pass a single token around between them (this
      test-case also intentionally passes another token that gets ignored to
      test the "wake up next" logic too, in case anybody wonders about it):
      
          #include <unistd.h>
      
          int main(int argc, char **argv)
          {
              int fd[2], counters[2];
      
              pipe(fd);
              counters[0] = 0;
              counters[1] = -1;
              write(fd[1], counters, sizeof(counters));
      
              /* 64 processes */
              fork(); fork(); fork(); fork(); fork(); fork();
      
              do {
                      int i;
                      read(fd[0], &i, sizeof(i));
                      if (i < 0)
                              continue;
                      counters[0] = i+1;
                      write(fd[1], counters, (1+(i & 1)) *sizeof(int));
              } while (counters[0] < 1000000);
              return 0;
          }
      
      and in a perfect world, passing that token around should only cause one
      context switch per transfer, when the writer of a token causes a
      directed wakeup of just a single reader.
      
      But with the "writer wakes all readers" model we traditionally had, on
      my test box the above case causes more than an order of magnitude more
      scheduling: instead of the expected ~1M context switches, "perf stat"
      shows
      
              231,852.37 msec task-clock                #   15.857 CPUs utilized
              11,250,961      context-switches          #    0.049 M/sec
                 616,304      cpu-migrations            #    0.003 M/sec
                   1,648      page-faults               #    0.007 K/sec
       1,097,903,998,514      cycles                    #    4.735 GHz
         120,781,778,352      instructions              #    0.11  insn per cycle
          27,997,056,043      branches                  #  120.754 M/sec
             283,581,233      branch-misses             #    1.01% of all branches
      
            14.621273891 seconds time elapsed
      
             0.018243000 seconds user
             3.611468000 seconds sys
      
      before this commit.
      
      After this commit, I get
      
                5,229.55 msec task-clock                #    3.072 CPUs utilized
               1,212,233      context-switches          #    0.232 M/sec
                 103,951      cpu-migrations            #    0.020 M/sec
                   1,328      page-faults               #    0.254 K/sec
          21,307,456,166      cycles                    #    4.074 GHz
          12,947,819,999      instructions              #    0.61  insn per cycle
           2,881,985,678      branches                  #  551.096 M/sec
              64,267,015      branch-misses             #    2.23% of all branches
      
             1.702148350 seconds time elapsed
      
             0.004868000 seconds user
             0.110786000 seconds sys
      
      instead. Much better.
      
      [ Note! This kernel improvement seems to be very good at triggering a
        race condition in the make jobserver (in GNU make 4.2.1) for me. It's
        a long known bug that was fixed back in June 2017 by GNU make commit
        b552b0525198 ("[SV 51159] Use a non-blocking read with pselect to
        avoid hangs.").
      
        But there wasn't a new release of GNU make until 4.3 on Jan 19 2020,
        so a number of distributions may still have the buggy version. Some
        have backported the fix to their 4.2.1 release, though, and even
        without the fix it's quite timing-dependent whether the bug actually
        is hit. ]
      
      Josh Triplett says:
       "I've been hammering on your pipe fix patch (switching to exclusive
        wait queues) for a month or so, on several different systems, and I've
        run into no issues with it. The patch *substantially* improves
        parallel build times on large (~100 CPU) systems, both with parallel
        make and with other things that use make's pipe-based jobserver.
      
        All current distributions (including stable and long-term stable
        distributions) have versions of GNU make that no longer have the
        jobserver bug"
      Tested-by: default avatarJosh Triplett <josh@joshtriplett.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0ddad21d
    • Arnd Bergmann's avatar
      compat_ioctl: fix FIONREAD on devices · 0a061743
      Arnd Bergmann authored
      My final cleanup patch for sys_compat_ioctl() introduced a regression on
      the FIONREAD ioctl command, which is used for both regular and special
      files, but only works on regular files after my patch, as I had missed
      the warning that Al Viro put into a comment right above it.
      
      Change it back so it can work on any file again by moving the implementation
      to do_vfs_ioctl() instead.
      
      Fixes: 77b90401
      
       ("compat_ioctl: simplify the implementation")
      Reported-and-tested-by: default avatarChristian Zigotzky <chzigotzky@xenosoft.de>
      Reported-and-tested-by: default avataryouling257 <youling257@gmail.com>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      0a061743
    • Thomas Gleixner's avatar
      Merge tag 'irqchip-fixes-5.6-1' of... · 2f86e45a
      Thomas Gleixner authored
      Merge tag 'irqchip-fixes-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
      
      Pull irqchip fixes for 5.6, take #1 from Marc Zyngier:
      
       - Guarantee allocation of L2 vPE table for GICv4.1
       - Fix GICv4.1 VPROPBASER programming
       - Numerous GICv4.1 tidy ups
       - Fix disabled GICv3 redistributor provisioning with ACPI
       - KConfig cleanup for C-SKY
      2f86e45a
    • Tim Harvey's avatar
      net: thunderx: use proper interface type for RGMII · 29ca3b31
      Tim Harvey authored
      
      
      The configuration of the OCTEONTX XCV_DLL_CTL register via
      xcv_init_hw() is such that the RGMII RX delay is bypassed
      leaving the RGMII TX delay enabled in the MAC:
      
      	/* Configure DLL - enable or bypass
      	 * TX no bypass, RX bypass
      	 */
      	cfg = readq_relaxed(xcv->reg_base + XCV_DLL_CTL);
      	cfg &= ~0xFF03;
      	cfg |= CLKRX_BYP;
      	writeq_relaxed(cfg, xcv->reg_base + XCV_DLL_CTL);
      
      This would coorespond to a interface type of PHY_INTERFACE_MODE_RGMII_RXID
      and not PHY_INTERFACE_MODE_RGMII.
      
      Fixing this allows RGMII PHY drivers to do the right thing (enable
      RX delay in the PHY) instead of erroneously enabling both delays in the
      PHY.
      Signed-off-by: default avatarTim Harvey <tharvey@gateworks.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      29ca3b31
    • David S. Miller's avatar
      Merge tag 'wireless-drivers-2020-02-08' of... · c76b305c
      David S. Miller authored
      Merge tag 'wireless-drivers-2020-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
      
      
      
      Kalle Valo says:
      
      ====================
      wireless-drivers fixes for v5.6
      
      First set of fixes for v5.6. Buffer overflow fixes to mwifiex, quite a
      few functionality fixes to iwlwifi and smaller fixes to other drivers.
      
      mwifiex
      
      * fix an unlock from a previous security fix
      
      * fix two buffer overflows
      
      libertas
      
      * fix two bugs from previous security fixes
      
      iwlwifi
      
      * fix module removal with multiple NICs
      
      * don't treat IGTK removal failure as an error
      
      * avoid FW crashes due to DTS measurement races
      
      * fix a potential use after free in FTM code
      
      * prevent a NULL pointer dereference in iwl_mvm_cfg_he_sta()
      
      * fix TDLS discovery
      
      * check all CPUs when trying to detect an error during resume
      
      rtw88
      
      * fix clang warning
      
      mt76
      
      * fix reading of max_nss value from a register
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c76b305c
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · 2696e114
      David S. Miller authored
      
      
      Daniel Borkmann says:
      
      ====================
      pull-request: bpf 2020-02-07
      
      The following pull-request contains BPF updates for your *net* tree.
      
      We've added 15 non-merge commits during the last 10 day(s) which contain
      a total of 12 files changed, 114 insertions(+), 31 deletions(-).
      
      The main changes are:
      
      1) Various BPF sockmap fixes related to RCU handling in the map's tear-
         down code, from Jakub Sitnicki.
      
      2) Fix macro state explosion in BPF sk_storage map when calculating its
         bucket_log on allocation, from Martin KaFai Lau.
      
      3) Fix potential BPF sockmap update race by rechecking socket's established
         state under lock, from Lorenz Bauer.
      
      4) Fix crash in bpftool on missing xlated instructions when kptr_restrict
         sysctl is set, from Toke Høiland-Jørgensen.
      
      5) Fix i40e's XSK wakeup code to return proper error in busy state and
         various misc fixes in xdpsock BPF sample code, from Maciej Fijalkowski.
      
      6) Fix the way modifiers are skipped in BTF in the verifier while walking
         pointers to avoid program rejection, from Alexei Starovoitov.
      
      7) Fix Makefile for runqslower BPF tool to i) rebuild on libbpf changes and
         ii) to fix undefined reference linker errors for older gcc version due to
         order of passed gcc parameters, from Yulia Kartseva and Song Liu.
      
      8) Fix a trampoline_count BPF kselftest warning about missing braces around
         initializer, from Andrii Nakryiko.
      
      9) Fix up redundant "HAVE" prefix from large INSN limit kernel probe in
         bpftool, from Michal Rostecki.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2696e114
    • Christophe Leroy's avatar
      powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK · d4bf9053
      Christophe Leroy authored
      
      
      When CONFIG_PROVE_LOCKING is selected together with (now default)
      CONFIG_VMAP_STACK, kernel enter deadlock during boot.
      
      At the point of checking whether interrupts are enabled or not, the
      value of MSR saved on stack is read using the physical address of the
      stack. But at this point, when using VMAP stack the DATA MMU
      translation has already been re-enabled, leading to deadlock.
      
      Don't use the physical address of the stack when
      CONFIG_VMAP_STACK is set.
      Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
      Reported-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Fixes: 02847487
      
       ("powerpc/32: prepare for CONFIG_VMAP_STACK")
      Tested-by: default avatarGuenter Roeck <linux@roeck-us.net>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      Link: https://lore.kernel.org/r/daeacdc0dec0416d1c587cc9f9e7191ad3068dc0.1581095957.git.christophe.leroy@c-s.fr
      d4bf9053
    • Michael Ellerman's avatar
      powerpc/futex: Fix incorrect user access blocking · 9dc086f1
      Michael Ellerman authored
      The early versions of our kernel user access prevention (KUAP) were
      written by Russell and Christophe, and didn't have separate
      read/write access.
      
      At some point I picked up the series and added the read/write access,
      but I failed to update the usages in futex.h to correctly allow read
      and write.
      
      However we didn't notice because of another bug which was causing the
      low-level code to always enable read and write. That bug was fixed
      recently in commit 1d8f739b ("powerpc/kuap: Fix set direction in
      allow/prevent_user_access()").
      
      futex_atomic_cmpxchg_inatomic() is passed the user address as %3 and
      does:
      
        1:     lwarx   %1,  0, %3
               cmpw    0,  %1, %4
               bne-    3f
        2:     stwcx.  %5,  0, %3
      
      Which clearly loads and stores from/to %3. The logic in
      arch_futex_atomic_op_inuser() is similar, so fix both of them to use
      allow_read_write_user().
      
      Without this fix, and with PPC_KUAP_DEBUG=y, we see eg:
      
        Bug: Read fault blocked by AMR!
        WARNING: CPU: 94 PID: 149215 at arch/powerpc/include/asm/book3s/64/kup-radix.h:126 __do_page_fault+0x600/0xf30
        CPU: 94 PID: 149215 Comm: futex_requeue_p Tainted: G        W         5.5.0-rc7-gcc9x-g4c25df56 #1
        ...
        NIP [c000000000070680] __do_page_fault+0x600/0xf30
        LR [c00000000007067c] __do_page_fault+0x5fc/0xf30
        Call Trace:
        [c00020138e5637e0] [c00000000007067c] __do_page_fault+0x5fc/0xf30 (unreliable)
        [c00020138e5638c0] [c00000000000ada8] handle_page_fault+0x10/0x30
        --- interrupt: 301 at cmpxchg_futex_value_locked+0x68/0xd0
            LR = futex_lock_pi_atomic+0xe0/0x1f0
        [c00020138e563bc0] [c000000000217b50] futex_lock_pi_atomic+0x80/0x1f0 (unreliable)
        [c00020138e563c30] [c00000000021b668] futex_requeue+0x438/0xb60
        [c00020138e563d60] [c00000000021c6cc] do_futex+0x1ec/0x2b0
        [c00020138e563d90] [c00000000021c8b8] sys_futex+0x128/0x200
        [c00020138e563e20] [c00000000000b7ac] system_call+0x5c/0x68
      
      Fixes: de78a9c4
      
       ("powerpc: Add a framework for Kernel Userspace Access Protection")
      Cc: stable@vger.kernel.org # v5.2+
      Reported-by: syzbot+e808452bad7c375cbee6@syzkaller-ppc64.appspotmail.com
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      Reviewed-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
      Link: https://lore.kernel.org/r/20200207122145.11928-1-mpe@ellerman.id.au
      9dc086f1
    • Zenghui Yu's avatar
      irqchip/gic-v3-its: Rename VPENDBASER/VPROPBASER accessors · 5186a6cc
      Zenghui Yu authored
      
      
      V{PEND,PROP}BASER registers are actually located in VLPI_base frame
      of the *redistributor*. Rename their accessors to reflect this fact.
      
      No functional changes.
      Signed-off-by: default avatarZenghui Yu <yuzenghui@huawei.com>
      Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
      Link: https://lore.kernel.org/r/20200206075711.1275-7-yuzenghui@huawei.com
      5186a6cc
    • Zenghui Yu's avatar
      irqchip/gic-v3-its: Remove superfluous WARN_ON · b4635325
      Zenghui Yu authored
      
      
      "ITS virtual pending table not cleaning" is already complained inside
      its_clear_vpend_valid(), there's no need to trigger a WARN_ON again.
      Signed-off-by: default avatarZenghui Yu <yuzenghui@huawei.com>
      Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
      Link: https://lore.kernel.org/r/20200206075711.1275-6-yuzenghui@huawei.com
      b4635325