1. 11 May, 2021 3 commits
    • Linus Torvalds's avatar
      Merge tag 'for-5.13-rc1-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 88b06399
      Linus Torvalds authored
      Pull btrfs fix from David Sterba:
       "Handle transaction start error in btrfs_fileattr_set()
      
        This is fix for code introduced by the new fileattr merge"
      
      * tag 'for-5.13-rc1-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: handle transaction start error in btrfs_fileattr_set
      88b06399
    • Ritesh Harjani's avatar
      btrfs: handle transaction start error in btrfs_fileattr_set · 9b8a233b
      Ritesh Harjani authored
      Add error handling in btrfs_fileattr_set in case of an error while
      starting a transaction. This fixes btrfs/232 which otherwise used to
      fail with below signature on Power.
      
        btrfs/232 [ 1119.474650] run fstests btrfs/232 at 2021-04-21 02:21:22
        <...>
        [ 1366.638585] BUG: Unable to handle kernel data access on read at 0xffffffffffffff86
        [ 1366.638768] Faulting instruction address: 0xc0000000009a5c88
        cpu 0x0: Vector: 380 (Data SLB Access) at [c000000014f177b0]
            pc: c0000000009a5c88: btrfs_update_root_times+0x58/0xc0
            lr: c0000000009a5c84: btrfs_update_root_times+0x54/0xc0
            <...>
            pid   = 24881, comm = fsstress
      	   btrfs_update_inode+0xa0/0x140
      	   btrfs_fileattr_set+0x5d0/0x6f0
      	   vfs_fileattr_set+0x2a8/0x390
      	   do_vfs_ioctl+0x1290/0x1ac0
      	   sys_ioctl+0x6c/0x120
      	   system_call_exception+0x3d4/0x410
      	   system_call_common+0xec/0x278
      
      Fixes: 97fc2977
      
       ("btrfs: convert to fileattr")
      Signed-off-by: default avatarRitesh Harjani <riteshh@linux.ibm.com>
      Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
      Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
      9b8a233b
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-fixes-for-v5.13-2021-05-10' of... · 1140ab59
      Linus Torvalds authored
      Merge tag 'perf-tools-fixes-for-v5.13-2021-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull perf tools fixes from Arnaldo Carvalho de Melo:
      
       - Fix swapping of cpu_map and stat_config records.
      
       - Fix dynamic libbpf linking.
      
       - Disallow -c and -F option at the same time in 'perf record'.
      
       - Update headers with the kernel originals.
      
       - Silence warning for JSON ArchStd files.
      
       - Fix a build error on arm64 with clang.
      
      * tag 'perf-tools-fixes-for-v5.13-2021-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        tools headers UAPI: Sync perf_event.h with the kernel sources
        tools headers cpufeatures: Sync with the kernel sources
        tools include UAPI powerpc: Sync errno.h with the kernel headers
        tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'
        tools headers UAPI: Sync linux/prctl.h with the kernel sources
        tools headers UAPI: Sync files changed by landlock, quotactl_path and mount_settattr new syscalls
        perf tools: Fix a build error on arm64 with clang
        tools headers kvm: Sync kvm headers with the kernel sources
        tools headers UAPI: Sync linux/kvm.h with the kernel sources
        perf tools: Fix dynamic libbpf link
        perf session: Fix swapping of cpu_map and stat_config records
        perf jevents: Silence warning for ArchStd files
        perf record: Disallow -c and -F option at the same time
        tools arch x86: Sync the msr-index.h copy with the kernel sources
        tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
        tools headers UAPI: Update tools's copy of drm.h headers
      1140ab59
  2. 10 May, 2021 18 commits
    • Linus Torvalds's avatar
      Merge tag 'for-5.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 142b507f
      Linus Torvalds authored
      Pull btrfs fixes from David Sterba:
       "First batch of various fixes, here's a list of notable ones:
      
         - fix unmountable seed device after fstrim
      
         - fix silent data loss in zoned mode due to ordered extent splitting
      
         - fix race leading to unpersisted data and metadata on fsync
      
         - fix deadlock when cloning inline extents and using qgroups"
      
      * tag 'for-5.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: initialize return variable in cleanup_free_space_cache_v1
        btrfs: zoned: sanity check zone type
        btrfs: fix unmountable seed device after fstrim
        btrfs: fix deadlock when cloning inline extents and using qgroups
        btrfs: fix race leading to unpersisted data and metadata on fsync
        btrfs: do not consider send context as valid when trying to flush qgroups
        btrfs: zoned: fix silent data loss after failure splitting ordered extent
      142b507f
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 0aa099a3
      Linus Torvalds authored
      Pull kvm fixes from Paolo Bonzini:
      
       - Lots of bug fixes.
      
       - Fix virtualization of RDPID
      
       - Virtualization of DR6_BUS_LOCK, which on bare metal is new to this
         release
      
       - More nested virtualization migration fixes (nSVM and eVMCS)
      
       - Fix for KVM guest hibernation
      
       - Fix for warning in SEV-ES SRCU usage
      
       - Block KVM from loading on AMD machines with 5-level page tables, due
         to the APM not mentioning how host CR4.LA57 exactly impacts the
         guest.
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (48 commits)
        KVM: SVM: Move GHCB unmapping to fix RCU warning
        KVM: SVM: Invert user pointer casting in SEV {en,de}crypt helpers
        kvm: Cap halt polling at kvm->max_halt_poll_ns
        tools/kvm_stat: Fix documentation typo
        KVM: x86: Prevent deadlock against tk_core.seq
        KVM: x86: Cancel pvclock_gtod_work on module removal
        KVM: x86: Prevent KVM SVM from loading on kernels with 5-level paging
        KVM: X86: Expose bus lock debug exception to guest
        KVM: X86: Add support for the emulation of DR6_BUS_LOCK bit
        KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks
        KVM: x86: Hide RDTSCP and RDPID if MSR_TSC_AUX probing failed
        KVM: x86: Tie Intel and AMD behavior for MSR_TSC_AUX to guest CPU model
        KVM: x86: Move uret MSR slot management to common x86
        KVM: x86: Export the number of uret MSRs to vendor modules
        KVM: VMX: Disable loading of TSX_CTRL MSR the more conventional way
        KVM: VMX: Use common x86's uret MSR list as the one true list
        KVM: VMX: Use flag to indicate "active" uret MSRs instead of sorting list
        KVM: VMX: Configure list of user return MSRs at module init
        KVM: x86: Add support for RDPID without RDTSCP
        KVM: SVM: Probe and load MSR_TSC_AUX regardless of RDTSCP support in host
        ...
      0aa099a3
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync perf_event.h with the kernel sources · 71d7924b
      Arnaldo Carvalho de Melo authored
      To pick up the changes in:
      
        2b26f0aa ("perf: Support only inheriting events if cloned with CLONE_THREAD")
        2e498d0a ("perf: Add support for event removal on exec")
        547b6098 ("perf: aux: Add flags for the buffer format")
        55bcf6ef ("perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE")
        7dde5176 ("perf: aux: Add CoreSight PMU buffer formats")
        97ba62b2 ("perf: Add support for SIGTRAP on perf events")
        d0d1dd62
      
       ("perf core: Add PERF_COUNT_SW_CGROUP_SWITCHES event")
      
      Also change the expected sizeof(struct perf_event_attr) from 120 to 128 due to
      fields being added for the SIGTRAP changes.
      
      Addressing this perf build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
        diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
      
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Marco Elver <elver@google.com>
      Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      71d7924b
    • Arnaldo Carvalho de Melo's avatar
      tools headers cpufeatures: Sync with the kernel sources · 6faf64f5
      Arnaldo Carvalho de Melo authored
      To pick the changes from:
      
        4e629211 ("x86/paravirt: Add new features for paravirt patching")
        a161545a ("x86/cpufeatures: Enumerate Intel Hybrid Technology feature bit")
        a89dfde3 ("x86: Remove dynamic NOP selection")
        b8921dcc ("x86/cpufeatures: Add SGX1 and SGX2 sub-features")
        f21d4d3b ("x86/cpufeatures: Enumerate #DB for bus lock detection")
        f333374e
      
       ("x86/cpufeatures: Add the Virtual SPEC_CTRL feature")
      
      This only causes these perf files to be rebuilt:
      
        CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
        CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o
      
      And addresses this perf build warning:
      
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
        diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
      
      Cc: Babu Moger <babu.moger@amd.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Juergen Gross <jgross@suse.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      6faf64f5
    • Arnaldo Carvalho de Melo's avatar
      tools include UAPI powerpc: Sync errno.h with the kernel headers · 39163293
      Arnaldo Carvalho de Melo authored
      To pick the change in:
      
        7de21e67
      
       ("powerpc: fix EDEADLOCK redefinition error in uapi/asm/errno.h")
      
      That will make the errno number -> string tables to pick this change on powerpc.
      
      Silencing this perf build warning:
      
        Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/errno.h' differs from latest version at 'arch/powerpc/include/uapi/asm/errno.h'
        diff -u tools/arch/powerpc/include/uapi/asm/errno.h arch/powerpc/include/uapi/asm/errno.h
      
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Tony Ambardar <tony.ambardar@gmail.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      39163293
    • Arnaldo Carvalho de Melo's avatar
      tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' · fb24e308
      Arnaldo Carvalho de Melo authored
      To bring in the change made in this cset:
      
       5e21a3ec
      
       ("x86/alternative: Merge include files")
      
      This just silences these perf tools build warnings, no change in the tools:
      
        Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'
        diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S
        Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S'
        diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S
      
      Cc: Borislav Petkov <bp@suse.de>
      Cc: Juergen Gross <jgross@suse.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      fb24e308
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync linux/prctl.h with the kernel sources · 5a80ee42
      Arnaldo Carvalho de Melo authored
      To pick a new prctl introduced in:
      
        20169862
      
       ("arm64: Introduce prctl(PR_PAC_{SET,GET}_ENABLED_KEYS)")
      
      That results in
      
        $ grep prctl tools/perf/trace/beauty/*.sh
        tools/perf/trace/beauty/prctl_option.sh:printf "static const char *prctl_options[] = {\n"
        tools/perf/trace/beauty/prctl_option.sh:egrep $regex ${header_dir}/prctl.h | grep -v PR_SET_PTRACER | \
        tools/perf/trace/beauty/prctl_option.sh:printf "static const char *prctl_set_mm_options[] = {\n"
        tools/perf/trace/beauty/prctl_option.sh:egrep $regex ${header_dir}/prctl.h | \
        tools/perf/trace/beauty/x86_arch_prctl.sh:prctl_arch_header=${x86_header_dir}/prctl.h
        tools/perf/trace/beauty/x86_arch_prctl.sh:	printf "#define x86_arch_prctl_codes_%d_offset %s\n" $idx $first_entry
        tools/perf/trace/beauty/x86_arch_prctl.sh:	printf "static const char *x86_arch_prctl_codes_%d[] = {\n" $idx
        tools/perf/trace/beauty/x86_arch_prctl.sh:	egrep -q $regex ${prctl_arch_header} && \
        tools/perf/trace/beauty/x86_arch_prctl.sh:	(egrep $regex ${prctl_arch_header} | \
        $ tools/perf/trace/beauty/prctl_option.sh > before
        $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
        $ tools/perf/trace/beauty/prctl_option.sh > after
        $ diff -u before after
        --- before	2021-05-09 10:06:10.064559675 -0300
        +++ after	2021-05-09 10:06:21.319791396 -0300
        @@ -54,6 +54,8 @@
         	[57] = "SET_IO_FLUSHER",
         	[58] = "GET_IO_FLUSHER",
         	[59] = "SET_SYSCALL_USER_DISPATCH",
        +	[60] = "PAC_SET_ENABLED_KEYS",
        +	[61] = "PAC_GET_ENABLED_KEYS",
         };
         static const char *prctl_set_mm_options[] = {
         	[1] = "START_CODE",
        $
      
      Now users can do:
      
        # perf trace -e syscalls:sys_enter_prctl --filter "option==PAC_GET_ENABLED_KEYS"
      ^C#
        # trace -v -e syscalls:sys_enter_prctl --filter "option==PAC_GET_ENABLED_KEYS"
        New filter for syscalls:sys_enter_prctl: (option==0x3d) && (common_pid != 5519 && common_pid != 3404)
      ^C#
      
      And also when prctl appears in a session, its options will be
      translated to the string.
      
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Cc: Peter Collingbourne <pcc@google.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5a80ee42
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync files changed by landlock, quotactl_path and mount_settattr new syscalls · f8bcb061
      Arnaldo Carvalho de Melo authored
      To pick the changes in these csets:
      
        a49f4f81 ("arch: Wire up Landlock syscalls")
        2a186721 ("fs: add mount_setattr()")
        fa8b9007
      
       ("quota: wire up quotactl_path")
      
      That silences these perf build warnings and add support for those new
      syscalls in tools such as 'perf trace'.
      
      For instance, this is now possible:
      
        # ~acme/bin/perf trace -v -e landlock*
        event qualifier tracepoint filter: (common_pid != 129365 && common_pid != 3502) && (id == 444 || id == 445 || id == 446)
        ^C#
      
      That is tha filter expression attached to the raw_syscalls:sys_{enter,exit}
      tracepoints.
      
        $ grep landlock tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
        444	common	landlock_create_ruleset	sys_landlock_create_ruleset
        445	common	landlock_add_rule	sys_landlock_add_rule
        446	common	landlock_restrict_self	sys_landlock_restrict_self
        $
      
      This addresses these perf build warnings:
      
        Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
        diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
        Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
        diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
        Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
        diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
        Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
        diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
        Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
        diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl
      
      Cc: Christian Brauner <christian.brauner@ubuntu.com>
      Cc: James Morris <jamorris@linux.microsoft.com>
      Cc: Jan Kara <jack@suse.cz>
      Cc: Mickaël Salaün <mic@linux.microsoft.com>
      Cc: Sascha Hauer <s.hauer@pengutronix.de>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f8bcb061
    • Masami Hiramatsu's avatar
      perf tools: Fix a build error on arm64 with clang · a00b7e39
      Masami Hiramatsu authored
      
      
      Since clang's -Wmissing-field-initializers warns if a data
      structure is initialized with a signle NULL as below,
      
       ----
       tools/perf $ make CC=clang LLVM=1
       ...
       arch/arm64/util/kvm-stat.c:74:9: error: missing field 'ops' initializer [-Werror,-Wmissing-field-initializers]
               { NULL },
                      ^
       1 error generated.
       ----
      
      add another field initializer expressly as same as other
      arch's kvm-stat.c code.
      Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
      Cc: Anders Roxell <anders.roxell@linaro.org>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
      Link: http://lore.kernel.org/lkml/162037767540.94840.15758657049033010518.stgit@devnote2
      
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a00b7e39
    • Arnaldo Carvalho de Melo's avatar
      tools headers kvm: Sync kvm headers with the kernel sources · b35629bc
      Arnaldo Carvalho de Melo authored
      To pick the changes in:
      
        3c0c2ad1
      
       ("KVM: VMX: Add basic handling of VM-Exit from SGX enclave")
      
      None of them trigger any changes in tooling, this time this is just to silence
      these perf build warnings:
      
        Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h'
        diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h
      
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Sean Christopherson <seanjc@google.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      b35629bc
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync linux/kvm.h with the kernel sources · 0d943d5f
      Arnaldo Carvalho de Melo authored
      To pick the changes in:
      
        15fb7de1 ("KVM: SVM: Add KVM_SEV_RECEIVE_UPDATE_DATA command")
        3bf72569 ("KVM: arm64: Add support for the KVM PTP service")
        4cfdd47d ("KVM: SVM: Add KVM_SEV SEND_START command")
        54526d1f ("KVM: x86: Support KVM VMs sharing SEV context")
        5569e2e7 ("KVM: SVM: Add support for KVM_SEV_SEND_CANCEL command")
        8b13c364 ("KVM: introduce KVM_CAP_SET_GUEST_DEBUG2")
        af43cbbf ("KVM: SVM: Add support for KVM_SEV_RECEIVE_START command")
        d3d1af85 ("KVM: SVM: Add KVM_SEND_UPDATE_DATA command")
        fe7e9488
      
       ("KVM: x86: Add capability to grant VM access to privileged SGX attribute")
      
      That don't cause any change in tooling as it doesn't introduce any new
      ioctl.
      
        $ grep kvm tools/perf/trace/beauty/*.sh
        tools/perf/trace/beauty/kvm_ioctl.sh:printf "static const char *kvm_ioctl_cmds[] = {\n"
        tools/perf/trace/beauty/kvm_ioctl.sh:egrep $regex ${header_dir}/kvm.h	| \
        $
        $ tools/perf/trace/beauty/kvm_ioctl.sh > before
        $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
        $ tools/perf/trace/beauty/kvm_ioctl.sh > after
        $ diff -u before after
        $
      
      This silences this perf build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
        diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
      
      Cc: Brijesh Singh <brijesh.singh@amd.com>
      Cc: Jianyong Wu <jianyong.wu@arm.com>
      Cc: Marc Zyngier <maz@kernel.org>
      Cc: Nathan Tempelman <natet@google.com>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Sean Christopherson <seanjc@google.com>
      Cc: Steve Rutherford <srutherford@google.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0d943d5f
    • Jiri Olsa's avatar
      perf tools: Fix dynamic libbpf link · ad1237c3
      Jiri Olsa authored
      Justin reported broken build with LIBBPF_DYNAMIC=1.
      
      When linking libbpf dynamically we need to use perf's
      hashmap object, because it's not exported in libbpf.so
      (only in libbpf.a).
      
      Following build is now passing:
      
        $ make LIBBPF_DYNAMIC=1
          BUILD:   Doing 'make -j8' parallel build
          ...
        $ ldd perf | grep libbpf
              libbpf.so.0 => /lib64/libbpf.so.0 (0x00007fa7630db000)
      
      Fixes: eee19501
      
       ("perf tools: Grab a copy of libbpf's hashmap")
      Reported-by: default avatarJustin M. Forbes <jforbes@redhat.com>
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Michael Petlan <mpetlan@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lore.kernel.org/lkml/20210508205020.617984-1-jolsa@kernel.org
      
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ad1237c3
    • Dmitry Koshelev's avatar
      perf session: Fix swapping of cpu_map and stat_config records · a11c9a6e
      Dmitry Koshelev authored
      
      
      'data' field in perf_record_cpu_map_data struct is 16-bit
      wide and so should be swapped using bswap_16().
      
      'nr' field in perf_record_stat_config struct should be
      swapped before being used for size calculation.
      Signed-off-by: default avatarDmitry Koshelev <karaghiozis@gmail.com>
      Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Leo Yan <leo.yan@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lore.kernel.org/lkml/20210506131244.13328-1-karaghiozis@gmail.com
      
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a11c9a6e
    • Ian Rogers's avatar
      perf jevents: Silence warning for ArchStd files · 7aa3c9ea
      Ian Rogers authored
      
      
      JSON files in the level 1 directory are used for ArchStd events (see
      preprocess_arch_std_files), as such they shouldn't be warned about.
      Signed-off-by: default avatarIan Rogers <irogers@google.com>
      Reviewed-by: default avatarJohn Garry <john.garry@huawei.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
      Cc: Kajol Jain <kjain@linux.ibm.com>
      Cc: Kim Phillips <kim.phillips@amd.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lore.kernel.org/lkml/20210506225640.1461000-1-irogers@google.com
      
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7aa3c9ea
    • Namhyung Kim's avatar
      perf record: Disallow -c and -F option at the same time · e8c11676
      Namhyung Kim authored
      
      
      It's confusing which one is effective when the both options are given.
      The current code happens to use -c in this case but users might not be
      aware of it.  We can change it to complain about that instead of relying
      on the implicit priority.
      
      Before:
      
        $ perf record -c 111111 -F 99 true
        [ perf record: Woken up 1 times to write data ]
        [ perf record: Captured and wrote 0.031 MB perf.data (8 samples) ]
      
        $ perf evlist -F
        cycles: sample_period=111111
        $
      
      After:
        $ perf record -c 111111 -F 99 true
        cannot set frequency and period at the same time
        $
      
      So this change can break existing usages, but I think it's rare to have
      both options and it'd be better changing them.
      Suggested-by: default avatarAlexey Alexandrov <aalexand@google.com>
      Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Ian Rogers <irogers@google.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lore.kernel.org/lkml/20210402094020.28164-1-namhyung@kernel.org
      
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e8c11676
    • Arnaldo Carvalho de Melo's avatar
      tools arch x86: Sync the msr-index.h copy with the kernel sources · b3172585
      Arnaldo Carvalho de Melo authored
      To pick up the changes from these csets:
      
        d0946a88
      
       ("perf/x86/intel: Hybrid PMU support for perf capabilities")
      
      That cause no changes to tooling as it isn't adding any new MSR, just
      some capabilities for a pre-existing one:
      
        $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
        $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
        $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
        $ diff -u before after
        $
      
      Just silences this perf build warning:
      
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'
        diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
      
      Cc: Kan Liang <kan.liang@linux.intel.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      b3172585
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Sync drm/i915_drm.h with the kernel sources · 0fdee797
      Arnaldo Carvalho de Melo authored
      To pick the changes in:
      
        b5b6f6a6
      
       ("drm/i915/gem: Drop legacy execbuffer support (v2)")
      
      That don't result in any change in tooling as this is just adding a
      comment.
      
      Only silences this perf build warning:
      
        Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
        diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
      
      Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
      Cc: Jason Ekstrand <jason@jlekstrand.net>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      0fdee797
    • Arnaldo Carvalho de Melo's avatar
      tools headers UAPI: Update tools's copy of drm.h headers · a3bc4ffe
      Arnaldo Carvalho de Melo authored
      Picking the changes from:
      
        b603e810
      
       ("drm/uapi: document kernel capabilities")
      
      Doesn't result in any tooling changes:
      
        $ tools/perf/trace/beauty/drm_ioctl.sh  > before
        $ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h
        $ tools/perf/trace/beauty/drm_ioctl.sh  > after
        $ diff -u before after
      
      Silencing these perf build warnings:
      
        Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
        diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
      
      Cc: Simon Ser <contact@emersion.fr>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a3bc4ffe
  3. 09 May, 2021 10 commits
    • Linus Torvalds's avatar
      Linux 5.13-rc1 · 6efb943b
      Linus Torvalds authored
      6efb943b
    • Linus Torvalds's avatar
      fbmem: fix horribly incorrect placement of __maybe_unused · 6dae40ae
      Linus Torvalds authored
      Commit b9d79e4c
      
       ("fbmem: Mark proc_fb_seq_ops as __maybe_unused")
      places the '__maybe_unused' in an entirely incorrect location between
      the "struct" keyword and the structure name.
      
      It's a wonder that gcc accepts that silently, but clang quite reasonably
      warns about it:
      
          drivers/video/fbdev/core/fbmem.c:736:21: warning: attribute declaration must precede definition [-Wignored-attributes]
          static const struct __maybe_unused seq_operations proc_fb_seq_ops = {
                              ^
      
      Fix it.
      
      Cc: Guenter Roeck <linux@roeck-us.net>
      Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      6dae40ae
    • Linus Torvalds's avatar
      Merge tag 'drm-next-2021-05-10' of git://anongit.freedesktop.org/drm/drm · efc58a96
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Bit later than usual, I queued them all up on Friday then promptly
        forgot to write the pull request email. This is mainly amdgpu fixes,
        with some radeon/msm/fbdev and one i915 gvt fix thrown in.
      
        amdgpu:
         - MPO hang workaround
         - Fix for concurrent VM flushes on vega/navi
         - dcefclk is not adjustable on navi1x and newer
         - MST HPD debugfs fix
         - Suspend/resumes fixes
         - Register VGA clients late in case driver fails to load
         - Fix GEM leak in user framebuffer create
         - Add support for polaris12 with 32 bit memory interface
         - Fix duplicate cursor issue when using overlay
         - Fix corruption with tiled surfaces on VCN3
         - Add BO size and stride check to fix BO size verification
      
        radeon:
         - Fix off-by-one in power state parsing
         - Fix possible memory leak in power state parsing
      
        msm:
         - NULL ptr dereference fix
      
        fbdev:
         - procfs disabled warning fix
      
        i915:
         - gvt: Fix a possible division by zero in vgpu display rate
           calculation"
      
      * tag 'drm-next-2021-05-10' of git://anongit.freedesktop.org/drm/drm:
        drm/amdgpu: Use device specific BO size & stride check.
        drm/amdgpu: Init GFX10_ADDR_CONFIG for VCN v3 in DPG mode.
        drm/amd/pm: initialize variable
        drm/radeon: Avoid power table parsing memory leaks
        drm/radeon: Fix off-by-one power_state index heap overwrite
        drm/amd/display: Fix two cursor duplication when using overlay
        drm/amdgpu: add new MC firmware for Polaris12 32bit ASIC
        fbmem: Mark proc_fb_seq_ops as __maybe_unused
        drm/msm/dpu: Delete bonkers code
        drm/i915/gvt: Prevent divided by zero when calculating refresh rate
        amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create
        drm/amdgpu: Register VGA clients after init can no longer fail
        drm/amdgpu: Handling of amdgpu_device_resume return value for graceful teardown
        drm/amdgpu: fix r initial values
        drm/amd/display: fix wrong statement in mst hpd debugfs
        amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
        amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
        drm/amdgpu: fix concurrent VM flushes on Vega/Navi v2
        drm/amd/display: Reject non-zero src_y and src_x for video planes
      efc58a96
    • Linus Torvalds's avatar
      Merge tag 'block-5.13-2021-05-09' of git://git.kernel.dk/linux-block · 506c3079
      Linus Torvalds authored
      Pull block fix from Jens Axboe:
       "Turns out the bio max size change still has issues, so let's get it
        reverted for 5.13-rc1. We'll shake out the issues there and defer it
        to 5.14 instead"
      
      * tag 'block-5.13-2021-05-09' of git://git.kernel.dk/linux-block:
        Revert "bio: limit bio max size"
      506c3079
    • Linus Torvalds's avatar
      Merge tag '5.13-rc-smb3-part3' of git://git.samba.org/sfrench/cifs-2.6 · 0a55a1fb
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
       "Three small SMB3 chmultichannel related changesets (also for stable)
        from the SMB3 test event this week.
      
        The other fixes are still in review/testing"
      
      * tag '5.13-rc-smb3-part3' of git://git.samba.org/sfrench/cifs-2.6:
        smb3: if max_channels set to more than one channel request multichannel
        smb3: do not attempt multichannel to server which does not support it
        smb3: when mounting with multichannel include it in requested capabilities
      0a55a1fb
    • Linus Torvalds's avatar
      Merge tag 'sched-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9819f682
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
       "A set of scheduler updates:
      
         - Prevent PSI state corruption when schedule() races with cgroup
           move.
      
           A recent commit combined two PSI callbacks to reduce the number of
           cgroup tree updates, but missed that schedule() can drop rq::lock
           for load balancing, which opens the race window for
           cgroup_move_task() which then observes half updated state.
      
           The fix is to solely use task::ps_flags instead of looking at the
           potentially mismatching scheduler state
      
         - Prevent an out-of-bounds access in uclamp caused bu a rounding
           division which can lead to an off-by-one error exceeding the
           buckets array size.
      
         - Prevent unfairness caused by missing load decay when a task is
           attached to a cfs runqueue.
      
           The old load of the task was attached to the runqueue and never
           removed. Fix it by enforcing the load update through the hierarchy
           for unthrottled run queue instances.
      
         - A documentation fix fot the 'sched_verbose' command line option"
      
      * tag 'sched-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/fair: Fix unfairness caused by missing load decay
        sched: Fix out-of-bound access in uclamp
        psi: Fix psi state corruption when schedule() races with cgroup move
        sched,doc: sched_debug_verbose cmdline should be sched_verbose
      9819f682
    • Linus Torvalds's avatar
      Merge tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 732a27a0
      Linus Torvalds authored
      Pull locking fixes from Thomas Gleixner:
       "A set of locking related fixes and updates:
      
         - Two fixes for the futex syscall related to the timeout handling.
      
           FUTEX_LOCK_PI does not support the FUTEX_CLOCK_REALTIME bit and
           because it's not set the time namespace adjustment for clock
           MONOTONIC is applied wrongly.
      
           FUTEX_WAIT cannot support the FUTEX_CLOCK_REALTIME bit because its
           always a relative timeout.
      
         - Cleanups in the futex syscall entry points which became obvious
           when the two timeout handling bugs were fixed.
      
         - Cleanup of queued_write_lock_slowpath() as suggested by Linus
      
         - Fixup of the smp_call_function_single_async() prototype"
      
      * tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        futex: Make syscall entry points less convoluted
        futex: Get rid of the val2 conditional dance
        futex: Do not apply time namespace adjustment on FUTEX_LOCK_PI
        Revert 337f1304 ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op")
        locking/qrwlock: Cleanup queued_write_lock_slowpath()
        smp: Fix smp_call_function_single_async prototype
      732a27a0
    • Linus Torvalds's avatar
      Merge tag 'perf_urgent_for_v5.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 85bbba1c
      Linus Torvalds authored
      Pull x86 perf fix from Borislav Petkov:
       "Handle power-gating of AMD IOMMU perf counters properly when they are
        used"
      
      * tag 'perf_urgent_for_v5.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/events/amd/iommu: Fix invalid Perf result due to IOMMU PMC power-gating
      85bbba1c
    • Linus Torvalds's avatar
      Merge tag 'x86_urgent_for_v5.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · dd3e4012
      Linus Torvalds authored
      Pull x86 fixes from Borislav Petkov:
       "A bunch of things accumulated for x86 in the last two weeks:
      
         - Fix guest vtime accounting so that ticks happening while the guest
           is running can also be accounted to it. Along with a consolidation
           to the guest-specific context tracking helpers.
      
         - Provide for the host NMI handler running after a VMX VMEXIT to be
           able to run on the kernel stack correctly.
      
         - Initialize MSR_TSC_AUX when RDPID is supported and not RDTSCP (virt
           relevant - real hw supports both)
      
         - A code generation improvement to TASK_SIZE_MAX through the use of
           alternatives
      
         - The usual misc and related cleanups and improvements"
      
      * tag 'x86_urgent_for_v5.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        KVM: x86: Consolidate guest enter/exit logic to common helpers
        context_tracking: KVM: Move guest enter/exit wrappers to KVM's domain
        context_tracking: Consolidate guest enter/exit wrappers
        sched/vtime: Move guest enter/exit vtime accounting to vtime.h
        sched/vtime: Move vtime accounting external declarations above inlines
        KVM: x86: Defer vtime accounting 'til after IRQ handling
        context_tracking: Move guest exit vtime accounting to separate helpers
        context_tracking: Move guest exit context tracking to separate helpers
        KVM/VMX: Invoke NMI non-IST entry instead of IST entry
        x86/cpu: Remove write_tsc() and write_rdtscp_aux() wrappers
        x86/cpu: Initialize MSR_TSC_AUX if RDTSCP *or* RDPID is supported
        x86/resctrl: Fix init const confusion
        x86: Delete UD0, UD1 traces
        x86/smpboot: Remove duplicate includes
        x86/cpu: Use alternative to generate the TASK_SIZE_MAX constant
      dd3e4012
    • Jens Axboe's avatar
      Revert "bio: limit bio max size" · 35c820e7
      Jens Axboe authored
      This reverts commit cd2c7545.
      
      Alex reports that the commit causes corruption with LUKS on ext4. Revert
      it for now so that this can be investigated properly.
      
      Link: https://lore.kernel.org/linux-block/1620493841.bxdq8r5haw.none@localhost/
      
      Reported-by: default avatarAlex Xu (Hello71) <alex_y_xu@yahoo.ca>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      35c820e7
  4. 08 May, 2021 9 commits
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-5.13-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · b7415964
      Linus Torvalds authored
      Pull RISC-V fixes from Palmer Dabbelt:
      
       - A fix to avoid over-allocating the kernel's mapping on !MMU systems,
         which could lead to up to 2MiB of lost memory
      
       - The SiFive address extension errata only manifest on rv64, they are
         now disabled on rv32 where they are unnecessary
      
       - A pair of late-landing cleanups
      
      * tag 'riscv-for-linus-5.13-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        riscv: remove unused handle_exception symbol
        riscv: Consistify protect_kernel_linear_mapping_text_rodata() use
        riscv: enable SiFive errata CIP-453 and CIP-1200 Kconfig only if CONFIG_64BIT=y
        riscv: Only extend kernel reservation if mapped read-only
      b7415964
    • Linus Torvalds's avatar
      drm/i915/display: fix compiler warning about array overrun · fec4d427
      Linus Torvalds authored
      
      
      intel_dp_check_mst_status() uses a 14-byte array to read the DPRX Event
      Status Indicator data, but then passes that buffer at offset 10 off as
      an argument to drm_dp_channel_eq_ok().
      
      End result: there are only 4 bytes remaining of the buffer, yet
      drm_dp_channel_eq_ok() wants a 6-byte buffer.  gcc-11 correctly warns
      about this case:
      
        drivers/gpu/drm/i915/display/intel_dp.c: In function ‘intel_dp_check_mst_status’:
        drivers/gpu/drm/i915/display/intel_dp.c:3491:22: warning: ‘drm_dp_channel_eq_ok’ reading 6 bytes from a region of size 4 [-Wstringop-overread]
         3491 |                     !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
              |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        drivers/gpu/drm/i915/display/intel_dp.c:3491:22: note: referencing argument 1 of type ‘const u8 *’ {aka ‘const unsigned char *’}
        In file included from drivers/gpu/drm/i915/display/intel_dp.c:38:
        include/drm/drm_dp_helper.h:1466:6: note: in a call to function ‘drm_dp_channel_eq_ok’
         1466 | bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
              |      ^~~~~~~~~~~~~~~~~~~~
             6:14 elapsed
      
      This commit just extends the original array by 2 zero-initialized bytes,
      avoiding the warning.
      
      There may be some underlying bug in here that caused this confusion, but
      this is at least no worse than the existing situation that could use
      random data off the stack.
      
      Cc: Jani Nikula <jani.nikula@intel.com>
      Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
      Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
      Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
      Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
      Cc: Dave Airlie <airlied@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      fec4d427
    • Linus Torvalds's avatar
      Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 07db0563
      Linus Torvalds authored
      Pull more SCSI updates from James Bottomley:
       "This is a set of minor fixes in various drivers (qla2xxx, ufs,
        scsi_debug, lpfc) one doc fix and a fairly large update to the fnic
        driver to remove the open coded iteration functions in favour of the
        scsi provided ones"
      
      * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: fnic: Use scsi_host_busy_iter() to traverse commands
        scsi: fnic: Kill 'exclude_id' argument to fnic_cleanup_io()
        scsi: scsi_debug: Fix cmd_per_lun, set to max_queue
        scsi: ufs: core: Narrow down fast path in system suspend path
        scsi: ufs: core: Cancel rpm_dev_flush_recheck_work during system suspend
        scsi: ufs: core: Do not put UFS power into LPM if link is broken
        scsi: qla2xxx: Prevent PRLI in target mode
        scsi: qla2xxx: Add marginal path handling support
        scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found
        scsi: ufs: core: Fix a typo in ufs-sysfs.c
        scsi: lpfc: Fix bad memory access during VPD DUMP mailbox command
        scsi: lpfc: Fix DMA virtual address ptr assignment in bsg
        scsi: lpfc: Fix illegal memory access on Abort IOCBs
        scsi: blk-mq: Fix build warning when making htmldocs
      07db0563
    • Linus Torvalds's avatar
      Merge tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild · 0f979d81
      Linus Torvalds authored
      Pull more Kbuild updates from Masahiro Yamada:
      
       - Convert sh and sparc to use generic shell scripts to generate the
         syscall headers
      
       - refactor .gitignore files
      
       - Update kernel/config_data.gz only when the content of the .config
         is really changed, which avoids the unneeded re-link of vmlinux
      
       - move "remove stale files" workarounds to scripts/remove-stale-files
      
       - suppress unused-but-set-variable warnings by default for Clang
         as well
      
       - fix locale setting LANG=C to LC_ALL=C
      
       - improve 'make distclean'
      
       - always keep intermediate objects from scripts/link-vmlinux.sh
      
       - move IF_ENABLED out of <linux/kconfig.h> to make it self-contained
      
       - misc cleanups
      
      * tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
        linux/kconfig.h: replace IF_ENABLED() with PTR_IF() in <linux/kernel.h>
        kbuild: Don't remove link-vmlinux temporary files on exit/signal
        kbuild: remove the unneeded comments for external module builds
        kbuild: make distclean remove tag files in sub-directories
        kbuild: make distclean work against $(objtree) instead of $(srctree)
        kbuild: refactor modname-multi by using suffix-search
        kbuild: refactor fdtoverlay rule
        kbuild: parameterize the .o part of suffix-search
        arch: use cross_compiling to check whether it is a cross build or not
        kbuild: remove ARCH=sh64 support from top Makefile
        .gitignore: prefix local generated files with a slash
        kbuild: replace LANG=C with LC_ALL=C
        Makefile: Move -Wno-unused-but-set-variable out of GCC only block
        kbuild: add a script to remove stale generated files
        kbuild: update config_data.gz only when the content of .config is changed
        .gitignore: ignore only top-level modules.builtin
        .gitignore: move tags and TAGS close to other tag files
        kernel/.gitgnore: remove stale timeconst.h and hz.bc
        usr/include: refactor .gitignore
        genksyms: fix stale comment
        ...
      0f979d81
    • Steve French's avatar
      smb3: if max_channels set to more than one channel request multichannel · c1f8a398
      Steve French authored
      
      
      Mounting with "multichannel" is obviously implied if user requested
      more than one channel on mount (ie mount parm max_channels>1).
      Currently both have to be specified. Fix that so that if max_channels
      is greater than 1 on mount, enable multichannel rather than silently
      falling back to non-multichannel.
      Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      Reviewed-By: default avatarTom Talpey <tom@talpey.com>
      Cc: <stable@vger.kernel.org> # v5.11+
      Reviewed-by: default avatarShyam Prasad N <sprasad@microsoft.com>
      c1f8a398
    • Steve French's avatar
      smb3: do not attempt multichannel to server which does not support it · 9c2dc11d
      Steve French authored
      
      
      We were ignoring CAP_MULTI_CHANNEL in the server response - if the
      server doesn't support multichannel we should not be attempting it.
      
      See MS-SMB2 section 3.2.5.2
      Reviewed-by: default avatarShyam Prasad N <sprasad@microsoft.com>
      Reviewed-By: default avatarTom Talpey <tom@talpey.com>
      Cc: <stable@vger.kernel.org> # v5.8+
      Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      9c2dc11d
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · ab159ac5
      Linus Torvalds authored
      Pull powerpc updates and fixes from Michael Ellerman:
       "A bit of a mixture of things, tying up some loose ends.
      
        There's the removal of the nvlink code, which dependend on a commit in
        the vfio tree. Then the enablement of huge vmalloc which was in next
        for a few weeks but got dropped due to conflicts. And there's also a
        few fixes.
      
        Summary:
      
         - Remove the nvlink support now that it's only user has been removed.
      
         - Enable huge vmalloc mappings for Radix MMU (P9).
      
         - Fix KVM conversion to gfn-based MMU notifier callbacks.
      
         - Fix a kexec/kdump crash with hot plugged CPUs.
      
         - Fix boot failure on 32-bit with CONFIG_STACKPROTECTOR.
      
         - Restore alphabetic order of the selects under CONFIG_PPC.
      
        Thanks to: Christophe Leroy, Christoph Hellwig, Nicholas Piggin,
        Sandipan Das, and Sourabh Jain"
      
      * tag 'powerpc-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks
        powerpc/kconfig: Restore alphabetic order of the selects under CONFIG_PPC
        powerpc/32: Fix boot failure with CONFIG_STACKPROTECTOR
        powerpc/powernv/memtrace: Fix dcache flushing
        powerpc/kexec_file: Use current CPU info while setting up FDT
        powerpc/64s/radix: Enable huge vmalloc mappings
        powerpc/powernv: remove the nvlink support
      ab159ac5
    • Steve French's avatar
      smb3: when mounting with multichannel include it in requested capabilities · 679971e7
      Steve French authored
      
      
      In the SMB3/SMB3.1.1 negotiate protocol request, we are supposed to
      advertise CAP_MULTICHANNEL capability when establishing multiple
      channels has been requested by the user doing the mount. See MS-SMB2
      sections 2.2.3 and 3.2.5.2
      
      Without setting it there is some risk that multichannel could fail
      if the server interpreted the field strictly.
      Reviewed-By: default avatarTom Talpey <tom@talpey.com>
      Reviewed-by: default avatarShyam Prasad N <sprasad@microsoft.com>
      Cc: <stable@vger.kernel.org> # v5.8+
      Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      679971e7
    • Linus Torvalds's avatar
      Merge tag 'net-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · fc858a52
      Linus Torvalds authored
      Pull networking fixes from Jakub Kicinski:
       "Networking fixes for 5.13-rc1, including fixes from bpf, can and
        netfilter trees. Self-contained fixes, nothing risky.
      
        Current release - new code bugs:
      
         - dsa: ksz: fix a few bugs found by static-checker in the new driver
      
         - stmmac: fix frame preemption handshake not triggering after
           interface restart
      
        Previous releases - regressions:
      
         - make nla_strcmp handle more then one trailing null character
      
         - fix stack OOB reads while fragmenting IPv4 packets in openvswitch
           and net/sched
      
         - sctp: do asoc update earlier in sctp_sf_do_dupcook_a
      
         - sctp: delay auto_asconf init until binding the first addr
      
         - stmmac: clear receive all(RA) bit when promiscuous mode is off
      
         - can: mcp251x: fix resume from sleep before interface was brought up
      
        Previous releases - always broken:
      
         - bpf: fix leakage of uninitialized bpf stack under speculation
      
         - bpf: fix masking negation logic upon negative dst register
      
         - netfilter: don't assume that skb_header_pointer() will never fail
      
         - only allow init netns to set default tcp cong to a restricted algo
      
         - xsk: fix xp_aligned_validate_desc() when len == chunk_size to avoid
           false positive errors
      
         - ethtool: fix missing NLM_F_MULTI flag when dumping
      
         - can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
      
         - sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b
      
         - bridge: fix NULL-deref caused by a races between assigning
           rx_handler_data and setting the IFF_BRIDGE_PORT bit
      
        Latecomer:
      
         - seg6: add counters support for SRv6 Behaviors"
      
      * tag 'net-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
        atm: firestream: Use fallthrough pseudo-keyword
        net: stmmac: Do not enable RX FIFO overflow interrupts
        mptcp: fix splat when closing unaccepted socket
        i40e: Remove LLDP frame filters
        i40e: Fix PHY type identifiers for 2.5G and 5G adapters
        i40e: fix the restart auto-negotiation after FEC modified
        i40e: Fix use-after-free in i40e_client_subtask()
        i40e: fix broken XDP support
        netfilter: nftables: avoid potential overflows on 32bit arches
        netfilter: nftables: avoid overflows in nft_hash_buckets()
        tcp: Specify cmsgbuf is user pointer for receive zerocopy.
        mlxsw: spectrum_mr: Update egress RIF list before route's action
        net: ipa: fix inter-EE IRQ register definitions
        can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
        can: mcp251x: fix resume from sleep before interface was brought up
        can: mcp251xfd: mcp251xfd_probe(): add missing can_rx_offload_del() in error path
        can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe
        netfilter: nftables: Fix a memleak from userdata error path in new objects
        netfilter: remove BUG_ON() after skb_header_pointer()
        netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check
        ...
      fc858a52