1. 20 Mar, 2020 1 commit
  2. 19 Mar, 2020 2 commits
    • Vincenzo Frascino's avatar
      arm64: compat: Fix syscall number of compat_clock_getres · 3568b889
      Vincenzo Frascino authored
      The syscall number of compat_clock_getres was erroneously set to 247
      (__NR_io_cancel!) instead of 264. This causes the vDSO fallback of
      clock_getres() to land on the wrong syscall for compat tasks.
      Fix the numbering.
      Cc: <stable@vger.kernel.org>
      Fixes: 53c489e1
       ("arm64: compat: Add missing syscall numbers")
      Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Reviewed-by: default avatarNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Will Deacon's avatar
      arm64: kpti: Fix "kpti=off" when KASLR is enabled · c8355785
      Will Deacon authored
      Enabling KASLR forces the use of non-global page-table entries for kernel
      mappings, as this is a decision that we have to make very early on before
      mapping the kernel proper. When used in conjunction with the "kpti=off"
      command-line option, it is possible to use non-global kernel mappings but
      with the kpti trampoline disabled.
      Since commit 09e3c22a
       ("arm64: Use a variable to store non-global
      mappings decision"), arm64_kernel_unmapped_at_el0() reflects only the use of
      non-global mappings and does not take into account whether the kpti
      trampoline is enabled. This breaks context switching of the TPIDRRO_EL0
      register for 64-bit tasks, where the clearing of the register is deferred to
      the ret-to-user code, but it also breaks the ARM SPE PMU driver which
      helpfully recommends passing "kpti=off" on the command line!
      Report whether or not KPTI is actually enabled in
      arm64_kernel_unmapped_at_el0() and check the 'arm64_use_ng_mappings' global
      variable directly when determining the protection flags for kernel mappings.
      Cc: Mark Brown <broonie@kernel.org>
      Reported-by: default avatarHongbo Yao <yaohongbo@huawei.com>
      Tested-by: default avatarHongbo Yao <yaohongbo@huawei.com>
      Fixes: 09e3c22a
       ("arm64: Use a variable to store non-global mappings decision")
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
  3. 17 Mar, 2020 2 commits
    • Cristian Marussi's avatar
      arm64: smp: fix crash_smp_send_stop() behaviour · f50b7dac
      Cristian Marussi authored
      On a system configured to trigger a crash_kexec() reboot, when only one CPU
      is online and another CPU panics while starting-up, crash_smp_send_stop()
      will fail to send any STOP message to the other already online core,
      resulting in fail to freeze and registers not properly saved.
      Moreover even if the proper messages are sent (case CPUs > 2)
      it will similarly fail to account for the booting CPU when executing
      the final stop wait-loop, so potentially resulting in some CPU not
      been waited for shutdown before rebooting.
      A tangible effect of this behaviour can be observed when, after a panic
      with kexec enabled and loaded, on the following reboot triggered by kexec,
      the cpu that could not be successfully stopped fails to come back online:
      [  362.291022] ------------[ cut here ]------------
      [  362.291525] kernel BUG at arch/arm64/kernel/cpufeature.c:886!
      [  362.292023] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
      [  362.292400] Modules linked in:
      [  362.292970] CPU: 3 PID: 0 Comm: swapper/3 Kdump: loaded Not tainted 5.6.0-rc4-00003-gc780b890948a #105
      [  362.293136] Hardware name: Foundation-v8A (DT)
      [  362.293382] pstate: 200001c5 (nzCv dAIF -PAN -UAO)
      [  362.294063] pc : has_cpuid_feature+0xf0/0x348
      [  362.294177] lr : verify_local_elf_hwcaps+0x84/0xe8
      [  362.294280] sp : ffff800011b1bf60
      [  362.294362] x29: ffff800011b1bf60 x28: 0000000000000000
      [  362.294534] x27: 0000000000000000 x26: 0000000000000000
      [  362.294631] x25: 0000000000000000 x24: ffff80001189a25c
      [  362.294718] x23: 0000000000000000 x22: 0000000000000000
      [  362.294803] x21: ffff8000114aa018 x20: ffff800011156a00
      [  362.294897] x19: ffff800010c944a0 x18: 0000000000000004
      [  362.294987] x17: 0000000000000000 x16: 0000000000000000
      [  362.295073] x15: 00004e53b831ae3c x14: 00004e53b831ae3c
      [  362.295165] x13: 0000000000000384 x12: 0000000000000000
      [  362.295251] x11: 0000000000000000 x10: 00400032b5503510
      [  362.295334] x9 : 0000000000000000 x8 : ffff800010c7e204
      [  362.295426] x7 : 00000000410fd0f0 x6 : 0000000000000001
      [  362.295508] x5 : 00000000410fd0f0 x4 : 0000000000000000
      [  362.295592] x3 : 0000000000000000 x2 : ffff8000100939d8
      [  362.295683] x1 : 0000000000180420 x0 : 0000000000180480
      [  362.296011] Call trace:
      [  362.296257]  has_cpuid_feature+0xf0/0x348
      [  362.296350]  verify_local_elf_hwcaps+0x84/0xe8
      [  362.296424]  check_local_cpu_capabilities+0x44/0x128
      [  362.296497]  secondary_start_kernel+0xf4/0x188
      [  362.296998] Code: 52805001 72a00301 6b01001f 54000ec0 (d4210000)
      [  362.298652] SMP: stopping secondary CPUs
      [  362.300615] Starting crashdump kernel...
      [  362.301168] Bye!
      [    0.000000] Booting Linux on physical CPU 0x0000000003 [0x410fd0f0]
      [    0.000000] Linux version 5.6.0-rc4-00003-gc780b890948a (crimar01@e120937-lin) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #105 SMP PREEMPT Fri Mar 6 17:00:42 GMT 2020
      [    0.000000] Machine model: Foundation-v8A
      [    0.000000] earlycon: pl11 at MMIO 0x000000001c090000 (options '')
      [    0.000000] printk: bootconsole [pl11] enabled
      [    0.138024] rcu: Hierarchical SRCU implementation.
      [    0.153472] its@2f020000: unable to locate ITS domain
      [    0.154078] its@2f020000: Unable to locate ITS domain
      [    0.157541] EFI services will not be available.
      [    0.175395] smp: Bringing up secondary CPUs ...
      [    0.209182] psci: failed to boot CPU1 (-22)
      [    0.209377] CPU1: failed to boot: -22
      [    0.274598] Detected PIPT I-cache on CPU2
      [    0.278707] GICv3: CPU2: found redistributor 1 region 0:0x000000002f120000
      [    0.285212] CPU2: Booted secondary processor 0x0000000001 [0x410fd0f0]
      [    0.369053] Detected PIPT I-cache on CPU3
      [    0.372947] GICv3: CPU3: found redistributor 2 region 0:0x000000002f140000
      [    0.378664] CPU3: Booted secondary processor 0x0000000002 [0x410fd0f0]
      [    0.401707] smp: Brought up 1 node, 3 CPUs
      [    0.404057] SMP: Total of 3 processors activated.
      Make crash_smp_send_stop() account also for the online status of the
      calling CPU while evaluating how many CPUs are effectively online: this way
      the right number of STOPs is sent and all other stopped-cores's registers
      are properly saved.
      Fixes: 78fd584c
       ("arm64: kdump: implement machine_crash_shutdown()")
      Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
      Signed-off-by: default avatarCristian Marussi <cristian.marussi@arm.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Cristian Marussi's avatar
      arm64: smp: fix smp_send_stop() behaviour · d0bab0c3
      Cristian Marussi authored
      On a system with only one CPU online, when another one CPU panics while
      starting-up, smp_send_stop() will fail to send any STOP message to the
      other already online core, resulting in a system still responsive and
      alive at the end of the panic procedure.
      [  186.700083] CPU3: shutdown
      [  187.075462] CPU2: shutdown
      [  187.162869] CPU1: shutdown
      [  188.689998] ------------[ cut here ]------------
      [  188.691645] kernel BUG at arch/arm64/kernel/cpufeature.c:886!
      [  188.692079] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
      [  188.692444] Modules linked in:
      [  188.693031] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 5.6.0-rc4-00001-g338d25c35a98 #104
      [  188.693175] Hardware name: Foundation-v8A (DT)
      [  188.693492] pstate: 200001c5 (nzCv dAIF -PAN -UAO)
      [  188.694183] pc : has_cpuid_feature+0xf0/0x348
      [  188.694311] lr : verify_local_elf_hwcaps+0x84/0xe8
      [  188.694410] sp : ffff800011b1bf60
      [  188.694536] x29: ffff800011b1bf60 x28: 0000000000000000
      [  188.694707] x27: 0000000000000000 x26: 0000000000000000
      [  188.694801] x25: 0000000000000000 x24: ffff80001189a25c
      [  188.694905] x23: 0000000000000000 x22: 0000000000000000
      [  188.694996] x21: ffff8000114aa018 x20: ffff800011156a38
      [  188.695089] x19: ffff800010c944a0 x18: 0000000000000004
      [  188.695187] x17: 0000000000000000 x16: 0000000000000000
      [  188.695280] x15: 0000249dbde5431e x14: 0262cbe497efa1fa
      [  188.695371] x13: 0000000000000002 x12: 0000000000002592
      [  188.695472] x11: 0000000000000080 x10: 00400032b5503510
      [  188.695572] x9 : 0000000000000000 x8 : ffff800010c80204
      [  188.695659] x7 : 00000000410fd0f0 x6 : 0000000000000001
      [  188.695750] x5 : 00000000410fd0f0 x4 : 0000000000000000
      [  188.695836] x3 : 0000000000000000 x2 : ffff8000100939d8
      [  188.695919] x1 : 0000000000180420 x0 : 0000000000180480
      [  188.696253] Call trace:
      [  188.696410]  has_cpuid_feature+0xf0/0x348
      [  188.696504]  verify_local_elf_hwcaps+0x84/0xe8
      [  188.696591]  check_local_cpu_capabilities+0x44/0x128
      [  188.696666]  secondary_start_kernel+0xf4/0x188
      [  188.697150] Code: 52805001 72a00301 6b01001f 54000ec0 (d4210000)
      [  188.698639] ---[ end trace 3f12ca47652f7b72 ]---
      [  188.699160] Kernel panic - not syncing: Attempted to kill the idle task!
      [  188.699546] Kernel Offset: disabled
      [  188.699828] CPU features: 0x00004,20c02008
      [  188.700012] Memory Limit: none
      [  188.700538] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
      [root@arch ~]# echo Helo
      [root@arch ~]# cat /proc/cpuinfo | grep proce
      processor	: 0
      Make smp_send_stop() account also for the online status of the calling CPU
      while evaluating how many CPUs are effectively online: this way, the right
      number of STOPs is sent, so enforcing a proper freeze of the system at the
      end of panic even under the above conditions.
      Fixes: 08e875c1
       ("arm64: SMP support")
      Reported-by: default avatarDave Martin <Dave.Martin@arm.com>
      Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
      Signed-off-by: default avatarCristian Marussi <cristian.marussi@arm.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
  4. 02 Mar, 2020 3 commits
  5. 20 Feb, 2020 2 commits
  6. 19 Feb, 2020 1 commit
  7. 18 Feb, 2020 1 commit
    • Vincenzo Frascino's avatar
      arm64: lse: Fix LSE atomics with LLVM · dd1f6308
      Vincenzo Frascino authored
      Commit e0d5896b ("arm64: lse: fix LSE atomics with LLVM's integrated
      assembler") broke the build when clang is used in connjunction with the
      binutils assembler ("-no-integrated-as"). This happens because
      __LSE_PREAMBLE is defined as ".arch armv8-a+lse", which overrides the
      version of the CPU architecture passed via the "-march" paramter to gas:
      $ aarch64-none-linux-gnu-as -EL -I ./arch/arm64/include
                                      -I ./arch/arm64/include/generated
                                      -I ./include -I ./include
                                      -I ./arch/arm64/include/uapi
                                      -I ./arch/arm64/include/generated/uapi
                                      -I ./include/uapi -I ./include/generated/uapi
                                      -I ./init -I ./init
                                      -march=armv8.3-a -o init/do_mounts.o
      /tmp/do_mounts-d7992a.s: Assembler messages:
      /tmp/do_mounts-d7992a.s:1959: Error: selected processor does not support `autiasp'
      /tmp/do_mounts-d7992a.s:2021: Error: selected processor does not support `paciasp'
      /tmp/do_mounts-d7992a.s:2157: Error: selected processor does not support `autiasp'
      /tmp/do_mounts-d7992a.s:2175: Error: selected processor does not support `paciasp'
      /tmp/do_mounts-d7992a.s:2494: Error: selected processor does not support `autiasp'
      Fix the issue by replacing ".arch armv8-a+lse" with ".arch_extension lse".
      Sami confirms that the clang integrated assembler does now support the
      '.arch_extension' directive, so this change will be fine even for LTO
      builds in future.
      Fixes: e0d5896b
       ("arm64: lse: fix LSE atomics with LLVM's integrated assembler")
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Will Deacon <will@kernel.org>
      Reported-by: default avatarAmit Kachhap <Amit.Kachhap@arm.com>
      Tested-by: default avatarSami Tolvanen <samitolvanen@google.com>
      Signed-off-by: default avatarVincenzo Frascino <vincenzo.frascino@arm.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
  8. 12 Feb, 2020 1 commit
  9. 11 Feb, 2020 1 commit
  10. 10 Feb, 2020 7 commits
    • John Garry's avatar
      perf/smmuv3: Use platform_get_irq_optional() for wired interrupt · 0ca2c031
      John Garry authored
      Even though a SMMUv3 PMCG implementation may use an MSI as the form of
      interrupt source, the kernel would still complain that it does not find
      the wired (GSIV) interrupt in this case:
      root@(none)$ dmesg | grep arm-smmu-v3-pmcg | grep "not found"
      [   59.237219] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.8.auto: IRQ index 0 not found
      [   59.322841] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.9.auto: IRQ index 0 not found
      [   59.422155] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.10.auto: IRQ index 0 not found
      [   59.539014] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.11.auto: IRQ index 0 not found
      [   59.640329] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.12.auto: IRQ index 0 not found
      [   59.743112] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.13.auto: IRQ index 0 not found
      [   59.880577] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.14.auto: IRQ index 0 not found
      [   60.017528] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.15.auto: IRQ index 0 not found
      Use platform_get_irq_optional() to silence the warning.
      If neither interrupt source is found, then the driver will still warn that
      IRQ setup errored and the probe will fail.
      Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
      Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Qian Cai's avatar
      arm64/spinlock: fix a -Wunused-function warning · 345d52c1
      Qian Cai authored
      The commit f5bfdc8e ("locking/osq: Use optimized spinning loop for
      arm64") introduced a warning from Clang because vcpu_is_preempted() is
      compiled away,
      kernel/locking/osq_lock.c:25:19: warning: unused function 'node_cpu'
      static inline int node_cpu(struct optimistic_spin_node *node)
      1 warning generated.
      Fix it by converting vcpu_is_preempted() to a static inline function.
      Fixes: f5bfdc8e
       ("locking/osq: Use optimized spinning loop for arm64")
      Acked-by: default avatarWaiman Long <longman@redhat.com>
      Signed-off-by: default avatarQian Cai <cai@lca.pw>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Will Deacon's avatar
      arm64: ssbs: Fix context-switch when SSBS is present on all CPUs · fca3d33d
      Will Deacon authored
      When all CPUs in the system implement the SSBS extension, the SSBS field
      in PSTATE is the definitive indication of the mitigation state. Further,
      when the CPUs implement the SSBS manipulation instructions (advertised
      to userspace via an HWCAP), EL0 can toggle the SSBS field directly and
      so we cannot rely on any shadow state such as TIF_SSBD at all.
      Avoid forcing the SSBS field in context-switch on such a system, and
      simply rely on the PSTATE register instead.
      Cc: <stable@vger.kernel.org>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Srinivas Ramana <sramana@codeaurora.org>
      Fixes: cbdf8a18
       ("arm64: Force SSBS on context switch")
      Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Matteo Croce's avatar
      arm64: use shared sysctl constants · 2c614c11
      Matteo Croce authored
      Use shared sysctl variables for zero and one constants, as in
      commit eec4844f ("proc/sysctl: add shared variables for range check")
      Fixes: 63f0c603
       ("arm64: Introduce prctl() options to control the tagged user addresses ABI")
      Signed-off-by: default avatarMatteo Croce <mcroce@redhat.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Anshuman Khandual's avatar
      arm64: Drop do_el0_ia_bp_hardening() & do_sp_pc_abort() declarations · 5cb7a111
      Anshuman Khandual authored
      There is a redundant do_sp_pc_abort() declaration in exceptions.h which can
      be removed. Also do_el0_ia_bp_hardening() as been already been dropped with
      the commit bfe29874
       ("arm64: entry-common: don't touch daif before
      bp-hardening") and hence does not need a declaration any more. This should
      not introduce any functional change.
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Will Deacon <will@kernel.org>
      Cc: James Morse <james.morse@arm.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-kernel@vger.kernel.org
      Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
      Signed-off-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
      Signed-off-by: default avatarWill Deacon <will@kernel.org>
    • Linus Torvalds's avatar
      Linux 5.6-rc1 · bb6d3fb3
      Linus Torvalds authored
    • Linus Torvalds's avatar
      Merge tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild · 89a47dd1
      Linus Torvalds authored
      Pull more Kbuild updates from Masahiro Yamada:
       - fix randconfig to generate a sane .config
       - rename hostprogs-y / always to hostprogs / always-y, which are more
         natual syntax.
       - optimize scripts/kallsyms
       - fix yes2modconfig and mod2yesconfig
       - make multiple directory targets ('make foo/ bar/') work
      * tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kbuild: make multiple directory targets work
        kconfig: Invalidate all symbols after changing to y or m.
        kallsyms: fix type of kallsyms_token_table[]
        scripts/kallsyms: change table to store (strcut sym_entry *)
        scripts/kallsyms: rename local variables in read_symbol()
        kbuild: rename hostprogs-y/always to hostprogs/always-y
        kbuild: fix the document to use extra-y for vmlinux.lds
        kconfig: fix broken dependency in randconfig-generated .config
  11. 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
    • 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
      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>
    • 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
    • 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
    • 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
    • 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()
    • 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()
         - Add a missing unlock in the error path of maps__insert() in perf
         - 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 t...
    • 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
    • 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
         - 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
    • 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
    • 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
    • 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
       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
       6) Properly access packets heads in bonding alb code, from Eric
       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
      * 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
  12. 08 Feb, 2020 7 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>
    • 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/futex: Fix incorrect user access blocking
    • 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
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    • 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
    • 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
    • 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
         - 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
        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
    • 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
         - 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