Commit Graph

934659 Commits

Author SHA1 Message Date
Peter Zijlstra
f05d67179d Merge branch 'locking/header' 2020-07-29 16:14:21 +02:00
Herbert Xu
459e39538e locking/qspinlock: Do not include atomic.h from qspinlock_types.h
This patch breaks a header loop involving qspinlock_types.h.
The issue is that qspinlock_types.h includes atomic.h, which then
eventually includes kernel.h which could lead back to the original
file via spinlock_types.h.

As ATOMIC_INIT is now defined by linux/types.h, there is no longer
any need to include atomic.h from qspinlock_types.h.  This also
allows the CONFIG_PARAVIRT hack to be removed since it was trying
to prevent exactly this loop.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lkml.kernel.org/r/20200729123316.GC7047@gondor.apana.org.au
2020-07-29 16:14:19 +02:00
Herbert Xu
7ca8cf5347 locking/atomic: Move ATOMIC_INIT into linux/types.h
This patch moves ATOMIC_INIT from asm/atomic.h into linux/types.h.
This allows users of atomic_t to use ATOMIC_INIT without having to
include atomic.h as that way may lead to header loops.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lkml.kernel.org/r/20200729123105.GB7047@gondor.apana.org.au
2020-07-29 16:14:18 +02:00
Herbert Xu
e885d5d947 lockdep: Move list.h inclusion into lockdep.h
Currently lockdep_types.h includes list.h without actually using any
of its macros or functions.  All it needs are the type definitions
which were moved into types.h long ago.  This potentially causes
inclusion loops because both are included by many core header
files.

This patch moves the list.h inclusion into lockdep.h.  Note that
we could probably remove it completely but that could potentially
result in compile failures should any end users not include list.h
directly and also be unlucky enough to not get list.h via some other
header file.

Reported-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Petr Mladek <pmladek@suse.com>
Link: https://lkml.kernel.org/r/20200716063649.GA23065@gondor.apana.org.au
2020-07-28 10:45:46 +02:00
Ingo Molnar
c84d53051f Linux 5.8-rc6
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Merge tag 'v5.8-rc6' into locking/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-07-25 21:49:36 +02:00
Linus Torvalds
ba47d845d7 Linux 5.8-rc6 2020-07-19 15:41:18 -07:00
Linus Torvalds
92188b41f1 Third batch of perf tooling fixes for 5.8:
- Update hashmap.h from libbpf and kvm.h from x86's kernel UAPI.
 
 - Set opt->set in libsubcmd's OPT_CALLBACK_SET(). Fixes
   'perf record --switch-output-event event-name' usage.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 
 Test results:
 
 The first ones are container based builds of tools/perf with and without libelf
 support.  Where clang is available, it is also used to build perf with/without
 libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang
 when clang and its devel libraries are installed.
 
 The objtool and samples/bpf/ builds are disabled now that I'm switching from
 using the sources in a local volume to fetching them from a http server to
 build it inside the container, to make it easier to build in a container cluster.
 Those will come back later.
 
 Several are cross builds, the ones with -x-ARCH and the android one, and those
 may not have all the features built, due to lack of multi-arch devel packages,
 available and being used so far on just a few, like
 debian:experimental-x-{arm64,mipsel}.
 
 The 'perf test' one will perform a variety of tests exercising
 tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
 with a variety of command line event specifications to then intercept the
 sys_perf_event syscall to check that the perf_event_attr fields are set up as
 expected, among a variety of other unit tests.
 
 Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
 with a variety of feature sets, exercising the build with an incomplete set of
 features as well as with a complete one. It is planned to have it run on each
 of the containers mentioned above, using some container orchestration
 infrastructure. Get in contact if interested in helping having this in place.
 
 Some of the most recent, experimental distros are failing, fixes will be
 provided, but those gcc/clang versions are not yet in general use and some
 are related to linking with libllvm, not the default build.
 
   # export PERF_TARBALL=http://192.168.124.1/perf/perf-5.8.0-rc5.tar.xz
   # dm
    1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
    2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
    3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
    4 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
    5 alpine:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
    6 alpine:3.9                    : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
    7 alpine:3.10                   : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
    8 alpine:3.11                   : Ok   gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
    9 alpine:3.12                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   10 alpine:edge                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (git://git.alpinelinux.org/aports 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   11 alt:p8                        : Ok   x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
   12 alt:p9                        : Ok   x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 7.0.1
   13 alt:sisyphus                  : Ok   x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 10.0.0
   14 amazonlinux:1                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
   15 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
   16 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   17 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   18 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
   19 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
   20 centos:8                      : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03)
   21 clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 10.1.1 20200708 releases/gcc-10.1.0-332-g17327d6cc7, clang version 10.0.0
   22 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
   23 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
   24 debian:10                     : Ok   gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
   25 debian:experimental           : FAIL gcc (Debian 9.3.0-15) 9.3.0, clang version 9.0.1-13
   26 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
   27 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
   28 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
   29 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909
   30 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
   31 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
   32 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
   33 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
   34 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
   35 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
   36 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
   37 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
   38 fedora:28                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
   39 fedora:29                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
   40 fedora:30                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
   41 fedora:30-x-ARC-glibc         : Ok   arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
   42 fedora:30-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
   43 fedora:31                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
   44 fedora:32                     : Ok   gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-2.fc32)
   45 fedora:rawhide                : FAIL gcc (GCC) 10.1.1 20200618 (Red Hat 10.1.1-2), clang version 10.0.0 (Fedora 10.0.0-6.fc33)
   46 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 9.2.0-r2 p3) 9.2.0
   47 mageia:5                      : Ok   gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
   48 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
   49 mageia:7                      : Ok   gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
   50 manjaro:latest                : Ok   gcc (GCC) 9.2.0, clang version 9.0.0 (tags/RELEASE_900/final)
   51 openmandriva:cooker           : Ok   gcc (GCC) 10.0.0 20200502 (OpenMandriva), clang version 10.0.1
   52 opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548)
   53 opensuse:15.1                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
   54 opensuse:15.2                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 9.0.1
   55 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
   56 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 10.1.1 20200625 [revision c91e43e9363bd119a695d64505f96539fa451bf2], clang version 10.0.0
   57 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
   58 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.3)
   59 oraclelinux:8                 : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
   60 ubuntu:12.04                  : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
   61 ubuntu:14.04                  : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
   62 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
   63 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   64 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   65 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   66 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   67 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   68 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   69 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
   70 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   71 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   72 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   73 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
   74 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
   75 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   76 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   77 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   78 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
   79 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   80 ubuntu:18.10                  : Ok   gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final)
   81 ubuntu:19.04                  : Ok   gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final)
   82 ubuntu:19.04-x-alpha          : Ok   alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
   83 ubuntu:19.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0
   84 ubuntu:19.04-x-hppa           : Ok   hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
   85 ubuntu:19.10                  : FAIL gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 9.0.0-2 (tags/RELEASE_900/final)
   86 ubuntu:20.04                  : Ok   gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
   #
 
   # git log --oneline -1
   25d4e7f513 (HEAD -> perf/urgent) tools arch kvm: Sync kvm headers with the kernel sources
   # perf -vv
   perf version 5.8.rc5.g25d4e7f513d4
                    dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
       dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                    glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                     gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
            syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                   libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                   libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                  libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
   numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                  libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
                libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                 libslang: [ on  ]  # HAVE_SLANG_SUPPORT
                libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
                libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
       libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                     zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                     lzma: [ on  ]  # HAVE_LZMA_SUPPORT
                get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                      bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
                      aio: [ on  ]  # HAVE_AIO_SUPPORT
                     zstd: [ on  ]  # HAVE_ZSTD_SUPPORT
   # uname -a
   Linux quaco 5.7.8-200.fc32.x86_64 #1 SMP Thu Jul 9 14:34:51 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
   # perf test
    1: vmlinux symtab matches kallsyms                       : Ok
    2: Detect openat syscall event                           : Ok
    3: Detect openat syscall event on all cpus               : Ok
    4: Read samples using the mmap interface                 : Ok
    5: Test data source output                               : Ok
    6: Parse event definition strings                        : Ok
    7: Simple expression parser                              : Ok
    8: PERF_RECORD_* events & perf_sample fields             : Ok
    9: Parse perf pmu format                                 : Ok
   10: PMU events                                            :
   10.1: PMU event table sanity                              : Ok
   10.2: PMU event map aliases                               : Ok
   10.3: Parsing of PMU event table metrics                  : Skip (some metrics failed)
   11: DSO data read                                         : Ok
   12: DSO data cache                                        : Ok
   13: DSO data reopen                                       : Ok
   14: Roundtrip evsel->name                                 : Ok
   15: Parse sched tracepoints fields                        : Ok
   16: syscalls:sys_enter_openat event fields                : Ok
   17: Setup struct perf_event_attr                          : Ok
   18: Match and link multiple hists                         : Ok
   19: 'import perf' in python                               : Ok
   20: Breakpoint overflow signal handler                    : Ok
   21: Breakpoint overflow sampling                          : Ok
   22: Breakpoint accounting                                 : Ok
   23: Watchpoint                                            :
   23.1: Read Only Watchpoint                                : Skip
   23.2: Write Only Watchpoint                               : Ok
   23.3: Read / Write Watchpoint                             : Ok
   23.4: Modify Watchpoint                                   : Ok
   24: Number of exit events of a simple workload            : Ok
   25: Software clock events period values                   : Ok
   26: Object code reading                                   : Ok
   27: Sample parsing                                        : Ok
   28: Use a dummy software event to keep tracking           : Ok
   29: Parse with no sample_id_all bit set                   : Ok
   30: Filter hist entries                                   : Ok
   31: Lookup mmap thread                                    : Ok
   32: Share thread maps                                     : Ok
   33: Sort output of hist entries                           : Ok
   34: Cumulate child hist entries                           : Ok
   35: Track with sched_switch                               : Ok
   36: Filter fds with revents mask in a fdarray             : Ok
   37: Add fd to a fdarray, making it autogrow               : Ok
   38: kmod_path__parse                                      : Ok
   39: Thread map                                            : Ok
   40: LLVM search and compile                               :
   40.1: Basic BPF llvm compile                              : Ok
   40.2: kbuild searching                                    : Ok
   40.3: Compile source for BPF prologue generation          : Ok
   40.4: Compile source for BPF relocation                   : Ok
   41: Session topology                                      : Ok
   42: BPF filter                                            :
   42.1: Basic BPF filtering                                 : Ok
   42.2: BPF pinning                                         : Ok
   42.3: BPF prologue generation                             : Ok
   42.4: BPF relocation checker                              : Ok
   43: Synthesize thread map                                 : Ok
   44: Remove thread map                                     : Ok
   45: Synthesize cpu map                                    : Ok
   46: Synthesize stat config                                : Ok
   47: Synthesize stat                                       : Ok
   48: Synthesize stat round                                 : Ok
   49: Synthesize attr update                                : Ok
   50: Event times                                           : Ok
   51: Read backward ring buffer                             : Ok
   52: Print cpu map                                         : Ok
   53: Merge cpu map                                         : Ok
   54: Probe SDT events                                      : Ok
   55: is_printable_array                                    : Ok
   56: Print bitmap                                          : Ok
   57: perf hooks                                            : Ok
   58: builtin clang support                                 : Skip (not compiled in)
   59: unit_number__scnprintf                                : Ok
   60: mem2node                                              : Ok
   61: time utils                                            : Ok
   62: Test jit_write_elf                                    : Ok
   63: Test libpfm4 support                                  : Skip (not compiled in)
   64: Test api io                                           : Ok
   65: maps__merge_in                                        : Ok
   66: Demangle Java                                         : Ok
   67: x86 rdpmc                                             : Ok
   68: Convert perf time to TSC                              : Ok
   69: DWARF unwind                                          : Ok
   70: x86 instruction decoder - new instructions            : Ok
   71: Intel PT packet decoder                               : Ok
   72: x86 bp modify                                         : Ok
   73: probe libc's inet_pton & backtrace it with ping       : Ok
   74: Use vfs_getname probe to get syscall args filenames   : Ok
   75: Add vfs_getname probe to get syscall args filenames   : Ok
   76: Check open filename arg using perf trace + vfs_getname: Ok
   77: Zstd perf.data compression/decompression              : Ok
   #
 
   $ git log --oneline -1 ; make -C tools/perf build-test
   25d4e7f513 (HEAD -> perf/urgent) tools arch kvm: Sync kvm headers with the kernel sources
   make: Entering directory '/home/acme/git/perf/tools/perf'
   - tarpkg: ./tests/perf-targz-src-pkg .
         make_no_libbpf_DEBUG_O: make NO_LIBBPF=1 DEBUG=1
             make_no_auxtrace_O: make NO_AUXTRACE=1
                 make_no_gtk2_O: make NO_GTK2=1
          make_with_clangllvm_O: make LIBCLANGLLVM=1
              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
          make_no_syscall_tbl_O: make NO_SYSCALL_TABLE=1
             make_no_demangle_O: make NO_DEMANGLE=1
                make_no_slang_O: make NO_SLANG=1
               make_no_libbpf_O: make NO_LIBBPF=1
   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
               make_no_libelf_O: make NO_LIBELF=1
                    make_help_O: make help
                 make_install_O: make install
                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                   make_debug_O: make DEBUG=1
              make_no_libperl_O: make NO_LIBPERL=1
             make_install_bin_O: make install-bin
                     make_doc_O: make doc
            make_no_libbionic_O: make NO_LIBBIONIC=1
                    make_tags_O: make tags
                 make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 NO_LIBCAP=1 NO_SYSCALL_TABLE=1
            make_no_backtrace_O: make NO_BACKTRACE=1
                  make_static_O: make LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX32=1 NO_JVMTI=1
                    make_pure_O: make
        make_util_pmu_bison_o_O: make util/pmu-bison.o
                  make_perf_o_O: make perf.o
              make_no_libnuma_O: make NO_LIBNUMA=1
    make_install_prefix_slash_O: make install prefix=/tmp/krava/
             make_no_libaudit_O: make NO_LIBAUDIT=1
                  make_cscope_O: make cscope
            make_with_libpfm4_O: make LIBPFM4=1
            make_no_libcrypto_O: make NO_LIBCRYPTO=1
               make_clean_all_O: make clean all
            make_no_libpython_O: make NO_LIBPYTHON=1
          make_install_prefix_O: make install prefix=/tmp/krava
         make_with_babeltrace_O: make LIBBABELTRACE=1
            make_no_libunwind_O: make NO_LIBUNWIND=1
                 make_no_newt_O: make NO_NEWT=1
              make_util_map_o_O: make util/map.o
                  make_no_sdt_O: make NO_SDT=1
   OK
   make: Leaving directory '/home/acme/git/perf/tools/perf'
   $
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Merge tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into master

Pull perf tooling fixes from Arnaldo Carvalho de Melo:

 - Update hashmap.h from libbpf and kvm.h from x86's kernel UAPI.

 - Set opt->set in libsubcmd's OPT_CALLBACK_SET(). This fixes
   'perf record --switch-output-event event-name' usage"

* tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  tools arch kvm: Sync kvm headers with the kernel sources
  perf tools: Sync hashmap.h with libbpf's
  libsubcmd: Fix OPT_CALLBACK_SET()
2020-07-19 12:35:07 -07:00
Linus Torvalds
efb9666e90 A pile of fixes for x86:
- Fix the I/O bitmap invalidation on XEN PV, which was overlooked in the
    recent ioperm/iopl rework. This caused the TSS and XEN's I/O bitmap to
    get out of sync.
 
  - Use the proper vectors for HYPERV.
 
  - Make disabling of stack protector for the entry code work with GCC
    builds which enable stack protector by default. Removing the option is
    not sufficient, it needs an explicit -fno-stack-protector to shut it
    off.
 
  - Mark check_user_regs() noinstr as it is called from noinstr code. The
    missing annotation causes it to be placed in the text section which
    makes it instrumentable.
 
  - Add the missing interrupt disable in exc_alignment_check()
 
  - Fixup a XEN_PV build dependency in the 32bit entry code
 
  - A few fixes to make the Clang integrated assembler happy
 
  - Move EFI stub build to the right place for out of tree builds
 
  - Make prepare_exit_to_usermode() static. It's not longer called from ASM
    code.
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Merge tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull x86 fixes from Thomas Gleixner:
 "A pile of fixes for x86:

   - Fix the I/O bitmap invalidation on XEN PV, which was overlooked in
     the recent ioperm/iopl rework. This caused the TSS and XEN's I/O
     bitmap to get out of sync.

   - Use the proper vectors for HYPERV.

   - Make disabling of stack protector for the entry code work with GCC
     builds which enable stack protector by default. Removing the option
     is not sufficient, it needs an explicit -fno-stack-protector to
     shut it off.

   - Mark check_user_regs() noinstr as it is called from noinstr code.
     The missing annotation causes it to be placed in the text section
     which makes it instrumentable.

   - Add the missing interrupt disable in exc_alignment_check()

   - Fixup a XEN_PV build dependency in the 32bit entry code

   - A few fixes to make the Clang integrated assembler happy

   - Move EFI stub build to the right place for out of tree builds

   - Make prepare_exit_to_usermode() static. It's not longer called from
     ASM code"

* tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Don't add the EFI stub to targets
  x86/entry: Actually disable stack protector
  x86/ioperm: Fix io bitmap invalidation on Xen PV
  x86: math-emu: Fix up 'cmp' insn for clang ias
  x86/entry: Fix vectors to IDTENTRY_SYSVEC for CONFIG_HYPERV
  x86/entry: Add compatibility with IAS
  x86/entry/common: Make prepare_exit_to_usermode() static
  x86/entry: Mark check_user_regs() noinstr
  x86/traps: Disable interrupts in exc_aligment_check()
  x86/entry/32: Fix XEN_PV build dependency
2020-07-19 12:16:09 -07:00
Linus Torvalds
66e4b63624 Two fixes for the timer wheel:
- A timer which is already expired at enqueue time can set the
    base->next_expiry value backwards. As a consequence base->clk can be set
    back as well. This can lead to timers expiring early. Add a sanity check
    to prevent this.
 
  - When a timer is queued with an expiry time beyond the wheel capacity
    then it should be queued in the bucket of the last wheel level which is
    expiring last. The code adjusts expiry time to the maximum wheel
    capacity, which is only correct when the wheel clock is 0. Aside of that
    the check whether the delta is larger than wheel capacity does not check
    the delta, it checks the expiry value itself. As a result timers can
    expire at random.
 
    Fix this by checking the right variable and adjust expiry time so it
    becomes base->clock plus capacity which places it into the outmost
    bucket in the last wheel level.
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Merge tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull timer fixes from Thomas Gleixner:
 "Two fixes for the timer wheel:

   - A timer which is already expired at enqueue time can set the
     base->next_expiry value backwards. As a consequence base->clk can
     be set back as well. This can lead to timers expiring early. Add a
     sanity check to prevent this.

   - When a timer is queued with an expiry time beyond the wheel
     capacity then it should be queued in the bucket of the last wheel
     level which is expiring last.

     The code adjusted the expiry time to the maximum wheel capacity,
     which is only correct when the wheel clock is 0. Aside of that the
     check whether the delta is larger than wheel capacity does not
     check the delta, it checks the expiry value itself. As a result
     timers can expire at random.

     Fix this by checking the right variable and adjust expiry time so
     it becomes base->clock plus capacity which places it into the
     outmost bucket in the last wheel level"

* tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timer: Fix wheel index calculation on last level
  timer: Prevent base->clk from moving backward
2020-07-19 12:06:08 -07:00
Linus Torvalds
43768f7ce0 A set of scheduler fixes:
- Plug a load average accounting race which was introduced with a recent
    optimization casing load average to show bogus numbers.
 
  - Fix the rseq CPU id initialization for new tasks. sched_fork() does not
    update the rseq CPU id so the id is the stale id of the parent task,
    which can cause user space data corruption.
 
  - Handle a 0 return value of task_h_load() correctly in the load balancer,
    which does not decrease imbalance and therefore pulls until the maximum
    number of loops is reached, which might be all tasks just created by a
    fork bomb.
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Merge tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull scheduler fixes from Thomas Gleixner:
 "A set of scheduler fixes:

   - Plug a load average accounting race which was introduced with a
     recent optimization casing load average to show bogus numbers.

   - Fix the rseq CPU id initialization for new tasks. sched_fork() does
     not update the rseq CPU id so the id is the stale id of the parent
     task, which can cause user space data corruption.

   - Handle a 0 return value of task_h_load() correctly in the load
     balancer, which does not decrease imbalance and therefore pulls
     until the maximum number of loops is reached, which might be all
     tasks just created by a fork bomb"

* tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: handle case of task_h_load() returning 0
  sched: Fix unreliable rseq cpu_id for new tasks
  sched: Fix loadavg accounting race
2020-07-19 11:55:24 -07:00
Linus Torvalds
9413cd7792 Two fixes for the interrupt subsystem:
- Make the handling of the firmware node consistent and do not free the
    node after the domain has been created successfully. The core code
    stores a pointer to it which can lead to a use after free or double
    free.
 
    This used to "work" because the pointer was not stored when the initial
    code was written, but at some point later it was required to store
    it. Of course nobody noticed that the existing users break that way.
 
  - Handle affinity setting on inactive interrupts correctly when
    hierarchical irq domains are enabled. When interrupts are inactive with
    the modern hierarchical irqdomain design, the interrupt chips are not
    necessarily in a state where affinity changes can be handled. The legacy
    irq chip design allowed this because interrupts are immediately fully
    initialized at allocation time. X86 has a hacky workaround for this, but
    other implementations do not. This cased malfunction on GIC-V3. Instead
    of playing whack a mole to find all affected drivers, change the core
    code to store the requested affinity setting and then establish it when
    the interrupt is allocated, which makes the X86 hack go away.
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Merge tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull irq fixes from Thomas Gleixner:
 "Two fixes for the interrupt subsystem:

   - Make the handling of the firmware node consistent and do not free
     the node after the domain has been created successfully. The core
     code stores a pointer to it which can lead to a use after free or
     double free.

     This used to "work" because the pointer was not stored when the
     initial code was written, but at some point later it was required
     to store it. Of course nobody noticed that the existing users break
     that way.

   - Handle affinity setting on inactive interrupts correctly when
     hierarchical irq domains are enabled.

     When interrupts are inactive with the modern hierarchical irqdomain
     design, the interrupt chips are not necessarily in a state where
     affinity changes can be handled. The legacy irq chip design allowed
     this because interrupts are immediately fully initialized at
     allocation time. X86 has a hacky workaround for this, but other
     implementations do not.

     This cased malfunction on GIC-V3. Instead of playing whack a mole
     to find all affected drivers, change the core code to store the
     requested affinity setting and then establish it when the interrupt
     is allocated, which makes the X86 hack go away"

* tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/affinity: Handle affinity setting on inactive interrupts correctly
  irqdomain/treewide: Keep firmware node unconditionally allocated
2020-07-19 11:53:08 -07:00
Linus Torvalds
ce20d7bf6e USB fixes for 5.8-rc6
Here are a few small USB fixes, and one thunderbolt fix, for 5.8-rc6.
 
 Nothing huge in here, just the normal collection of gadget, dwc2/3,
 serial, and other minor USB driver fixes and id additions.  Full details
 are in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb into master

Pull USB fixes from Greg KH:
 "Here are a few small USB fixes, and one thunderbolt fix, for 5.8-rc6.

  Nothing huge in here, just the normal collection of gadget, dwc2/3,
  serial, and other minor USB driver fixes and id additions. Full
  details are in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: iuu_phoenix: fix memory corruption
  USB: c67x00: fix use after free in c67x00_giveback_urb
  usb: gadget: function: fix missing spinlock in f_uac1_legacy
  usb: gadget: udc: atmel: fix uninitialized read in debug printk
  usb: gadget: udc: atmel: remove outdated comment in usba_ep_disable()
  usb: dwc2: Fix shutdown callback in platform
  usb: cdns3: trace: fix some endian issues
  usb: cdns3: ep0: fix some endian issues
  usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()
  usb: gadget: fix langid kernel-doc warning in usbstring.c
  usb: dwc3: pci: add support for the Intel Jasper Lake
  usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant
  usb: chipidea: core: add wakeup support for extcon
  USB: serial: option: add Quectel EG95 LTE modem
  thunderbolt: Fix path indices used in USB3 tunnel discovery
  USB: serial: ch341: add new Product ID for CH340
  USB: serial: option: add GosunCn GM500 series
  USB: serial: cypress_m8: enable Simply Automated UPB PIM
2020-07-19 11:46:32 -07:00
Linus Torvalds
8c18fc6344 dma-mapping fixes for 5.8:
- ensure we always have fully addressable memory in the dma coherent
    pool (Nicolas Saenz Julienne)
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Merge tag 'dma-mapping-5.8-6' of git://git.infradead.org/users/hch/dma-mapping into master

Pull dma-mapping fixes from Christoph Hellwig:
 "Ensure we always have fully addressable memory in the dma coherent
  pool (Nicolas Saenz Julienne)"

* tag 'dma-mapping-5.8-6' of git://git.infradead.org/users/hch/dma-mapping:
  dma-pool: do not allocate pool memory from CMA
  dma-pool: make sure atomic pool suits device
  dma-pool: introduce dma_guess_pool()
  dma-pool: get rid of dma_in_atomic_pool()
  dma-direct: provide function to check physical memory area validity
2020-07-19 11:28:23 -07:00
Arvind Sankar
da05b143a3 x86/boot: Don't add the EFI stub to targets
vmlinux-objs-y is added to targets, which currently means that the EFI
stub gets added to the targets as well. It shouldn't be added since it
is built elsewhere.

This confuses Makefile.build which interprets the EFI stub as a target
	$(obj)/$(objtree)/drivers/firmware/efi/libstub/lib.a
and will create drivers/firmware/efi/libstub/ underneath
arch/x86/boot/compressed, to hold this supposed target, if building
out-of-tree. [0]

Fix this by pulling the stub out of vmlinux-objs-y into efi-obj-y.

[0] See scripts/Makefile.build near the end:
    # Create directories for object files if they do not exist

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lkml.kernel.org/r/20200715032631.1562882-1-nivedita@alum.mit.edu
2020-07-19 13:07:11 +02:00
Kees Cook
58ac3154b8 x86/entry: Actually disable stack protector
Some builds of GCC enable stack protector by default. Simply removing
the arguments is not sufficient to disable stack protector, as the stack
protector for those GCC builds must be explicitly disabled. Remove the
argument removals and add -fno-stack-protector. Additionally include
missed x32 argument updates, and adjust whitespace for readability.

Fixes: 20355e5f73 ("x86/entry: Exclude low level entry code from sanitizing")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/202006261333.585319CA6B@keescook
2020-07-19 13:07:10 +02:00
Linus Torvalds
f932d58abc SCSI fixes on 20200718
One small driver fix.  Although the one liner makes it sound like a
 cosmetic change, it's a regression fix for the megaraid_sas driver.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi into master

Pull SCSI fix from James Bottomley:
 "One small driver fix. Although the one liner makes it sound like a
  cosmetic change, it's a regression fix for the megaraid_sas driver"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: megaraid_sas: Remove undefined ENABLE_IRQ_POLL macro
2020-07-18 13:22:03 -07:00
Linus Torvalds
e26aeee89f hwmon fixes for v5.8-rc6
- Using SCT on some Tohsiba drives causes firmware hangs.
   Disable its use in the drivetemp driver.
 - Handle potential buffer overflows in scmi and aspeed-pwm-tacho driver.
 - Energy reporting does not work well on all AMD CPUs.
   Restrict amd_energy to known working models.
 - Enable reading the CPU temperature on NCT6798D using undocumented registers.
 - Fix read errors seen if PEC is enabled in adm1275 driver.
 - Fix setting the pwm1_enable in emc2103 driver.
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Merge tag 'hwmon-for-v5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging into master

Pull hwmon fixes from Guenter Roeck:

 - Using SCT on some Tohsiba drives causes firmware hangs. Disable its
   use in the drivetemp driver.

 - Handle potential buffer overflows in scmi and aspeed-pwm-tacho
   driver.

 - Energy reporting does not work well on all AMD CPUs. Restrict
   amd_energy to known working models.

 - Enable reading the CPU temperature on NCT6798D using undocumented
   registers.

 - Fix read errors seen if PEC is enabled in adm1275 driver.

 - Fix setting the pwm1_enable in emc2103 driver.

* tag 'hwmon-for-v5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (drivetemp) Avoid SCT usage on Toshiba DT01ACA family drives
  hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe()
  hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D
  hwmon: (adm1275) Make sure we are reading enough data for different chips
  hwmon: (emc2103) fix unable to change fan pwm1_enable attribute
  hwmon: (amd_energy) match for supported models
  hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow
2020-07-18 12:06:11 -07:00
Linus Torvalds
6cf7ccba29 RISC-V Fixes for 5.8-rc6
I have two fixes:
 
 * 16KiB kernel stacks on rv64, which fixes a lot of crashes.
 * Rolling an mmiowb() into the scheduled, which when combined with Will's fix
   to the mmiowb()-on-spinlock should fix the PREEMPT issues we've been seeing.
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Merge tag 'riscv-for-linus-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux into master

Pull RISC-V fixes from Palmer Dabbelt:
 "Two fixes:

   - 16KiB kernel stacks on rv64, which fixes a lot of crashes.

   - Rolling an mmiowb() into the scheduler, which when combined with
     Will's fix to the mmiowb()-on-spinlock should fix the PREEMPT
     issues we've been seeing"

* tag 'riscv-for-linus-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw
  riscv: use 16KB kernel stack on 64-bit
2020-07-18 11:10:06 -07:00
Linus Torvalds
721db9dfb1 powerpc fixes for 5.8 #7
A fix to the VAS code we merged this cycle, to report the proper error code to
 userspace for address translation failures. And a selftest update to match.
 
 Another fix for our pkey handling of PROT_EXEC mappings.
 
 A fix for a crash when booting a "secure VM" under an ultravisor with certain
 numbers of CPUs.
 
 Thanks to:
   Aneesh Kumar K.V, Haren Myneni, Laurent Dufour, Sandipan Das, Satheesh
   Rajendran, Thiago Jung Bauermann.
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Merge tag 'powerpc-5.8-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux into master

Pull powerpc fixes from Michael Ellerman:
 "Some more powerpc fixes for 5.8:

   - A fix to the VAS code we merged this cycle, to report the proper
     error code to userspace for address translation failures. And a
     selftest update to match.

   - Another fix for our pkey handling of PROT_EXEC mappings.

   - A fix for a crash when booting a "secure VM" under an ultravisor
     with certain numbers of CPUs.

  Thanks to: Aneesh Kumar K.V, Haren Myneni, Laurent Dufour, Sandipan
  Das, Satheesh Rajendran, Thiago Jung Bauermann"

* tag 'powerpc-5.8-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Use proper error code to check fault address
  powerpc/vas: Report proper error code for address translation failure
  powerpc/pseries/svm: Fix incorrect check for shared_lppaca_size
  powerpc/book3s64/pkeys: Fix pkey_access_permitted() for execute disable pkey
2020-07-18 10:45:17 -07:00
Maciej S. Szmigiero
c66ef39eb2 hwmon: (drivetemp) Avoid SCT usage on Toshiba DT01ACA family drives
It has been observed that Toshiba DT01ACA family drives have
WRITE FPDMA QUEUED command timeouts and sometimes just freeze until
power-cycled under heavy write loads when their temperature is getting
polled in SCT mode. The SMART mode seems to be fine, though.

Let's make sure we don't use SCT mode for these drives then.

While only the 3 TB model was actually caught exhibiting the problem let's
play safe here to avoid data corruption and extend the ban to the whole
family.

Fixes: 5b46903d8b ("hwmon: Driver for disk and solid state drives with temperature sensors")
Cc: stable@vger.kernel.org
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Link: https://lore.kernel.org/r/0cb2e7022b66c6d21d3f189a12a97878d0e7511b.1595075458.git.mail@maciej.szmigiero.name
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-18 08:11:44 -07:00
Andy Lutomirski
cadfad8701 x86/ioperm: Fix io bitmap invalidation on Xen PV
tss_invalidate_io_bitmap() wasn't wired up properly through the pvop
machinery, so the TSS and Xen's io bitmap would get out of sync
whenever disabling a valid io bitmap.

Add a new pvop for tss_invalidate_io_bitmap() to fix it.

This is XSA-329.

Fixes: 22fe5b0439 ("x86/ioperm: Move TSS bitmap update to exit to user work")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/d53075590e1f91c19f8af705059d3ff99424c020.1595030016.git.luto@kernel.org
2020-07-18 12:31:49 +02:00
André Almeida
9a71df495c futex: Remove unused or redundant includes
Since 82af7aca ("Removal of FUTEX_FD"), some includes related to file
operations aren't needed anymore. More investigation around the includes
showed that a lot of includes aren't required for compilation, possible
due to redundant includes. Simplify the code by removing unused
includes.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200702202843.520764-4-andrealmeid@collabora.com
2020-07-18 01:56:09 +02:00
André Almeida
9261308598 futex: Consistently use fshared as boolean
Since fshared is only conveying true/false values, declare it as bool.

In get_futex_key() the usage of fshared can be restricted to the first part
of the function. If fshared is false the function is terminated early and
the subsequent code can use a constant 'true' instead of the variable.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200702202843.520764-5-andrealmeid@collabora.com
2020-07-18 01:56:08 +02:00
Linus Torvalds
6a70f89cc5 More NFS Client Bugfixes for Linux 5.8
Bugfixes:
 - NFS: Fix interrupted slots by using the SEQUENCE operation
 - SUNRPC: reverte d03727b248 to fix unkillable IOs
 - xprtrdma: Fix double-free in rpcrdma_ep_create()
 - xprtrdma: Fix recursion into rpcrdma_xprt_disconnect()
 - xprtrdma: Fix return code from rpcrdma_xprt_connect()
 - xprtrdma: Fix handling of connect errors
 - xprtrdma: Fix incorrect header size calculations
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Merge tag 'nfs-for-5.8-3' of git://git.linux-nfs.org/projects/anna/linux-nfs into master

Pull NFS client fixes from Anna Schumaker:
 "A few more NFS client bugfixes for Linux 5.8:

  NFS:
   - Fix interrupted slots by using the SEQUENCE operation

  SUNRPC:
   - revert d03727b248 to fix unkillable IOs

  xprtrdma:
   - Fix double-free in rpcrdma_ep_create()
   - Fix recursion into rpcrdma_xprt_disconnect()
   - Fix return code from rpcrdma_xprt_connect()
   - Fix handling of connect errors
   - Fix incorrect header size calculations"

* tag 'nfs-for-5.8-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC reverting d03727b248 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")
  xprtrdma: fix incorrect header size calculations
  NFS: Fix interrupted slots by sending a solo SEQUENCE operation
  xprtrdma: Fix handling of connect errors
  xprtrdma: Fix return code from rpcrdma_xprt_connect()
  xprtrdma: Fix recursion into rpcrdma_xprt_disconnect()
  xprtrdma: Fix double-free in rpcrdma_ep_create()
2020-07-17 16:37:52 -07:00
Linus Torvalds
630c183b2d ARM: SoC fixes for v5.8
This time there are a number of actual code fixes, plus
 a small set of device tree issues getting addressed:
 
   - Renesas:
     - one defconfig cleanup to allow a later Kconfig change
 
   - Intel socfpga:
     - enable QSPI devices on some machines
     - fix DTC validation warnings
 
   - TI OMAP:
     - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target module
       driver
 
     - A regression fix for ti-sysc no-idle handling that caused issues
       compared to earlier platform data based booting
 
     - A fix for memory leak for omap_hwmod_allocate_module
 
     - Fix d_can driver probe for am437x
 
   - NXP i.MX
     - A couple of fixes on i.MX platform device registration code to stop
       the use of invalid IRQ 0.
     - Fix a regression seen on ls1021a platform, caused by commit
       52102a3ba6 ("soc: imx: move cpu code to drivers/soc/imx").
     - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board.
 
   - Amlogic Meson
     - misc DT fixes
     - SoC ID fixes to detect all chips correctly
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc into master

Pull ARM SoC fixes from Arnd Bergmann:
 "This time there are a number of actual code fixes, plus a small set of
  device tree issues getting addressed:

  Renesas:

    - one defconfig cleanup to allow a later Kconfig change

  Intel socfpga:

    - enable QSPI devices on some machines

    - fix DTC validation warnings

  TI OMAP:

    - Two DEBUG_ATOMIC_SLEEP fixes for ti-sysc interconnect target
      module driver

    - A regression fix for ti-sysc no-idle handling that caused issues
      compared to earlier platform data based booting

    - A fix for memory leak for omap_hwmod_allocate_module

    - Fix d_can driver probe for am437x

  NXP i.MX:

    - A couple of fixes on i.MX platform device registration code to
      stop the use of invalid IRQ 0.

    - Fix a regression seen on ls1021a platform, caused by commit
      52102a3ba6 ("soc: imx: move cpu code to drivers/soc/imx").

    - Fix a misconfiguration of audio SSI on imx6qdl-gw551x board.

  Amlogic Meson:

    - misc DT fixes

    - SoC ID fixes to detect all chips correctly"

* tag 'arm-fixes-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: dts: spcfpga: Align GIC, NAND and UART nodenames with dtschema
  ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema
  arm64: dts: stratix10: increase QSPI reg address in nand dts file
  arm64: dts: stratix10: add status to qspi dts node
  arm64: dts: agilex: add status to qspi dts node
  ARM: dts: Fix dcan driver probe failed on am437x platform
  ARM: OMAP2+: Fix possible memory leak in omap_hwmod_allocate_module
  arm64: defconfig: Enable CONFIG_PCIE_RCAR_HOST
  soc: imx: check ls1021a
  ARM: imx: Remove imx_add_imx_dma() unused irq_err argument
  ARM: imx: Provide correct number of resources when registering gpio devices
  ARM: dts: imx6qdl-gw551x: fix audio SSI
  bus: ti-sysc: Do not disable on suspend for no-idle
  bus: ti-sysc: Fix sleeping function called from invalid context for RTC quirk
  bus: ti-sysc: Fix wakeirq sleeping function called from invalid context
  ARM: dts: meson: Align L2 cache-controller nodename with dtschema
  arm64: dts: meson-gxl-s805x: reduce initial Mali450 core frequency
  arm64: dts: meson: add missing gxl rng clock
  soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's
2020-07-17 15:38:22 -07:00
Linus Torvalds
a570f41989 arm64 fixes for -rc6
- Fix kernel text addresses for relocatable images booting using EFI
   and with KASLR disabled so that they match the vmlinux ELF binary.
 
 - Fix unloading and unbinding of PMU driver modules.
 
 - Fix generic mmiowb() when writeX() is called from preemptible context
   (reported by the riscv folks).
 
 - Fix ptrace hardware single-step interactions with signal handlers,
   system calls and reverse debugging.
 
 - Fix reporting of 64-bit x0 register for 32-bit tasks via 'perf_regs'.
 
 - Add comments describing syscall entry/exit tracing ABI.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux into master

Pull arm64 fixes from Will Deacon:
 "A batch of arm64 fixes.

  Although the diffstat is a bit larger than we'd usually have at this
  stage, a decent amount of it is the addition of comments describing
  our syscall tracing behaviour, and also a sweep across all the modular
  arm64 PMU drivers to make them rebust against unloading and unbinding.

  There are a couple of minor things kicking around at the moment (CPU
  errata and module PLTs for very large modules), but I'm not expecting
  any significant changes now for us in 5.8.

   - Fix kernel text addresses for relocatable images booting using EFI
     and with KASLR disabled so that they match the vmlinux ELF binary.

   - Fix unloading and unbinding of PMU driver modules.

   - Fix generic mmiowb() when writeX() is called from preemptible
     context (reported by the riscv folks).

   - Fix ptrace hardware single-step interactions with signal handlers,
     system calls and reverse debugging.

   - Fix reporting of 64-bit x0 register for 32-bit tasks via
     'perf_regs'.

   - Add comments describing syscall entry/exit tracing ABI"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  drivers/perf: Prevent forced unbinding of PMU drivers
  asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()
  arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP
  arm64: ptrace: Use NO_SYSCALL instead of -1 in syscall_trace_enter()
  arm64: syscall: Expand the comment about ptrace and syscall(-1)
  arm64: ptrace: Add a comment describing our syscall entry/exit trap ABI
  arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
  arm64: ptrace: Override SPSR.SS when single-stepping is enabled
  arm64: ptrace: Consistently use pseudo-singlestep exceptions
  drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling
  efi/libstub/arm64: Retain 2MB kernel Image alignment if !KASLR
2020-07-17 15:27:52 -07:00
André Almeida
d7c5ed73b1 futex: Remove needless goto's
As stated in the coding style documentation, "if there is no cleanup
needed then just return directly", instead of jumping to a label and
then returning.

Remove such goto's and replace with a return statement.  When there's a
ternary operator on the return value, replace it with the result of the
operation when it is logically possible to determine it by the control
flow.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200702202843.520764-3-andrealmeid@collabora.com
2020-07-17 23:58:49 +02:00
André Almeida
9180bd467f futex: Remove put_futex_key()
Since 4b39f99c ("futex: Remove {get,drop}_futex_key_refs()"),
put_futex_key() is empty.

Remove all references for this function and the then redundant labels.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200702202843.520764-2-andrealmeid@collabora.com
2020-07-17 23:58:49 +02:00
Thomas Gleixner
baedb87d1b genirq/affinity: Handle affinity setting on inactive interrupts correctly
Setting interrupt affinity on inactive interrupts is inconsistent when
hierarchical irq domains are enabled. The core code should just store the
affinity and not call into the irq chip driver for inactive interrupts
because the chip drivers may not be in a state to handle such requests.

X86 has a hacky workaround for that but all other irq chips have not which
causes problems e.g. on GIC V3 ITS.

Instead of adding more ugly hacks all over the place, solve the problem in
the core code. If the affinity is set on an inactive interrupt then:

    - Store it in the irq descriptors affinity mask
    - Update the effective affinity to reflect that so user space has
      a consistent view
    - Don't call into the irq chip driver

This is the core equivalent of the X86 workaround and works correctly
because the affinity setting is established in the irq chip when the
interrupt is activated later on.

Note, that this is only effective when hierarchical irq domains are enabled
by the architecture. Doing it unconditionally would break legacy irq chip
implementations.

For hierarchial irq domains this works correctly as none of the drivers can
have a dependency on affinity setting in inactive state by design.

Remove the X86 workaround as it is not longer required.

Fixes: 02edee152d ("x86/apic/vector: Ignore set_affinity call for inactive interrupts")
Reported-by: Ali Saidi <alisaidi@amazon.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Ali Saidi <alisaidi@amazon.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200529015501.15771-1-alisaidi@amazon.com
Link: https://lkml.kernel.org/r/877dv2rv25.fsf@nanos.tec.linutronix.de
2020-07-17 23:30:43 +02:00
Frederic Weisbecker
e2a71bdea8 timer: Fix wheel index calculation on last level
When an expiration delta falls into the last level of the wheel, that delta
has be compared against the maximum possible delay and reduced to fit in if
necessary.

However instead of comparing the delta against the maximum, the code
compares the actual expiry against the maximum. Then instead of fixing the
delta to fit in, it sets the maximum delta as the expiry value.

This can result in various undesired outcomes, the worst possible one
being a timer expiring 15 days ahead to fire immediately.

Fixes: 500462a9de ("timers: Switch to a non-cascading wheel")
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200717140551.29076-2-frederic@kernel.org
2020-07-17 21:44:05 +02:00
Olga Kornievskaia
65caafd0d2 SUNRPC reverting d03727b248 ("NFSv4 fix CLOSE not waiting for direct IO compeletion")
Reverting commit d03727b248 "NFSv4 fix CLOSE not waiting for
direct IO compeletion". This patch made it so that fput() by calling
inode_dio_done() in nfs_file_release() would wait uninterruptably
for any outstanding directIO to the file (but that wait on IO should
be killable).

The problem the patch was also trying to address was REMOVE returning
ERR_ACCESS because the file is still opened, is supposed to be resolved
by server returning ERR_FILE_OPEN and not ERR_ACCESS.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-07-17 14:47:38 -04:00
Linus Torvalds
4ebf8d7649 io_uring-5.8-2020-07-17
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Merge tag 'io_uring-5.8-2020-07-17' of git://git.kernel.dk/linux-block into master

Pull io_uring fix from Jens Axboe:
 "Fix for a case where, with automatic buffer selection, we can leak the
  buffer descriptor for recvmsg"

* tag 'io_uring-5.8-2020-07-17' of git://git.kernel.dk/linux-block:
  io_uring: fix recvmsg memory leak with buffer selection
2020-07-17 10:47:51 -07:00
Linus Torvalds
c9ea87dc6c block-5.8-2020-07-17
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Merge tag 'block-5.8-2020-07-17' of git://git.kernel.dk/linux-block into master

Pull block fix from Jens Axboe:
 "Single NVMe multipath capacity fix"

* tag 'block-5.8-2020-07-17' of git://git.kernel.dk/linux-block:
  nvme: explicitly update mpath disk capacity on revalidation
2020-07-17 10:45:36 -07:00
Linus Torvalds
0dd68a34ec fuse fixes for 5.8-rc6
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Merge tag 'fuse-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse into master

Pull fuse fixes from Miklos Szeredi:

 - two regressions in this cycle caused by the conversion of writepage
   list to an rb_tree

 - two regressions in v5.4 cause by the conversion to the new mount API

 - saner behavior of fsconfig(2) for the reconfigure case

 - an ancient issue with FS_IOC_{GET,SET}FLAGS ioctls

* tag 'fuse-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: Fix parameter for FS_IOC_{GET,SET}FLAGS
  fuse: don't ignore errors from fuse_writepages_fill()
  fuse: clean up condition for writepage sending
  fuse: reject options on reconfigure via fsconfig(2)
  fuse: ignore 'data' argument of mount(..., MS_REMOUNT)
  fuse: use ->reconfigure() instead of ->remount_fs()
  fuse: fix warning in tree_insert() and clean up writepage insertion
  fuse: move rb_erase() before tree_insert()
2020-07-17 10:36:19 -07:00
Linus Torvalds
44fea37378 overlayfs fixes for 5.8-rc6
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Merge tag 'ovl-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into master

Pull overlayfs fixes from Miklos Szeredi:

 - fix a regression introduced in v4.20 in handling a regenerated
   squashfs lower layer

 - two regression fixes for this cycle, one of which is Oops inducing

 - miscellaneous issues

* tag 'ovl-fixes-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: fix lookup of indexed hardlinks with metacopy
  ovl: fix unneeded call to ovl_change_flags()
  ovl: fix mount option checks for nfs_export with no upperdir
  ovl: force read-only sb on failure to create index dir
  ovl: fix regression with re-formatted lower squashfs
  ovl: fix oops in ovl_indexdir_cleanup() with nfs_export=on
  ovl: relax WARN_ON() when decoding lower directory file handle
  ovl: remove not used argument in ovl_check_origin
  ovl: change ovl_copy_up_flags static
  ovl: inode reference leak in ovl_is_inuse true case.
2020-07-17 10:29:19 -07:00
Linus Torvalds
33b9108f04 spi: Fixes for v5.8
A couple of small driver specific fixes for fairly minor issues.
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Merge tag 'spi-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into master

Pull spi fixes from Mark Brown:
 "A couple of small driver specific fixes for fairly minor issues"

* tag 'spi-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spi-sun6i: sun6i_spi_transfer_one(): fix setting of clock rate
  spi: mediatek: use correct SPI_CFG2_REG MACRO
2020-07-17 10:24:09 -07:00
Linus Torvalds
8da822e8a5 regulator: Fixes for v5.8
The more substantial fix here is the rename of the da903x driver which
 fixes a collision with the parent MFD driver name which caused issues
 when things were built as modules.  There's also a fix for a mislableled
 regulator on the pmi8994 which is quite important for systems with that
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Merge tag 'regulator-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into master

Pull regulator fixes from Mark Brown:
 "The more substantial fix here is the rename of the da903x driver which
  fixes a collision with the parent MFD driver name which caused issues
  when things were built as modules.

  There's also a fix for a mislableled regulator on the pmi8994 which is
  quite important for systems with that device"

* tag 'regulator-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  MAINTAINERS: remove obsolete entry after file renaming
  regulator: rename da903x to da903x-regulator
  regulator: qcom_smd: Fix pmi8994 label
2020-07-17 10:20:26 -07:00
Linus Torvalds
ee43695571 regmap: Fixes for v5.8
A couple of substantial fixes here, one from Doug which fixes the
 debugfs code for MMIO regmaps (fortunately not the common case) and one
 from Marc fixing lookups of multiple regmaps for the same device (a very
 unusual case).  There's also a fix for Kconfig to ensure we enable
 SoundWire properly.
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Merge tag 'regmap-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into master

Pull regmap fixes from Mark Brown:
 "A couple of substantial fixes here, one from Doug which fixes the
  debugfs code for MMIO regmaps (fortunately not the common case) and
  one from Marc fixing lookups of multiple regmaps for the same device
  (a very unusual case).

  There's also a fix for Kconfig to ensure we enable SoundWire properly"

* tag 'regmap-fix-v5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: debugfs: Don't sleep while atomic for fast_io regmaps
  regmap: add missing dependency on SoundWire
  regmap: dev_get_regmap_match(): fix string comparison
2020-07-17 09:58:18 -07:00
Linus Torvalds
60541fb624 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid into master
Pull HID fixes from Jiri Kosina:

 - linked list race condition fix in hid-steam driver from Rodrigo Rivas
   Costa

 - assorted deviceID-specific quirks and other small cosmetic cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: logitech-hidpp: avoid repeated "multiplier = " log messages
  HID: logitech: Use HIDPP_RECEIVER_INDEX instead of 0xff
  HID: quirks: Ignore Simply Automated UPB PIM
  HID: apple: Disable Fn-key key-re-mapping on clone keyboards
  MAINTAINERS: update uhid and hid-wiimote entry
  HID: steam: fixes race in handling device list.
  HID: magicmouse: do not set up autorepeat
  HID: alps: support devices with report id 2
  HID: quirks: Always poll Obins Anne Pro 2 keyboard
  HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override
2020-07-17 09:43:13 -07:00
Palmer Dabbelt
38b7c2a3ff
RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw
While digging through the recent mmiowb preemption issue it came up that
we aren't actually preventing IO from crossing a scheduling boundary.
While it's a bit ugly to overload smp_mb__after_spinlock() with this
behavior, it's what PowerPC is doing so there's some precedent.

Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-17 09:28:35 -07:00
Arnd Bergmann
2648298a06 arm/arm64: dts: socfpga: fixes for v5.8
- Add status = "okay" in QSPI
 - Increase QSPI size in reg property
 - Fix dtschema for SoCFPGA platforms
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Merge tag 'socfpga_fixes_for_v5.8_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/fixes

arm/arm64: dts: socfpga: fixes for v5.8
- Add status = "okay" in QSPI
- Increase QSPI size in reg property
- Fix dtschema for SoCFPGA platforms

* tag 'socfpga_fixes_for_v5.8_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: dts: spcfpga: Align GIC, NAND and UART nodenames with dtschema
  ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema
  arm64: dts: stratix10: increase QSPI reg address in nand dts file
  arm64: dts: stratix10: add status to qspi dts node
  arm64: dts: agilex: add status to qspi dts node

Link: https://lore.kernel.org/r/20200717155758.18233-1-dinguyen@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-17 18:01:41 +02:00
Arnd Bergmann
f7d96b86e0 Renesas fixes for v5.8
- Replace CONFIG_PCIE_RCAR by CONFIG_PCIE_RCAR_HOST in the defconfig,
     to unblock a planned Kconfig change.
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Merge tag 'renesas-fixes-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

Renesas fixes for v5.8

  - Replace CONFIG_PCIE_RCAR by CONFIG_PCIE_RCAR_HOST in the defconfig,
    to unblock a planned Kconfig change.

* tag 'renesas-fixes-for-v5.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  arm64: defconfig: Enable CONFIG_PCIE_RCAR_HOST

Link: https://lore.kernel.org/r/20200717100523.15418-1-geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-17 18:01:16 +02:00
Linus Torvalds
a238ac2d6a sound fixes for 5.8-rc6
No surprise here, just a few device-specific small fixes: two fixes
 for USB LINE6 and one for USB-audio drivers wrt syzkaller fuzzer
 issues, while the rest are all HD-audio Realtek quirks.
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Merge tag 'sound-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound into master

Pull sound fixes from Takashi Iwai:
 "No surprise here, just a few device-specific small fixes: two fixes
  for USB LINE6 and one for USB-audio drivers wrt syzkaller fuzzer
  issues, while the rest are all HD-audio Realtek quirks"

* tag 'sound-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - fixup for yet another Intel reference board
  ALSA: hda/realtek - Enable Speaker for ASUS UX563
  ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534
  ALSA: hda/realtek: Enable headset mic of Acer TravelMate B311R-31 with ALC256
  ALSA: hda/realtek: enable headset mic of ASUS ROG Zephyrus G14(G401) series with ALC289
  ALSA: hda/realtek - change to suitable link model for ASUS platform
  ALSA: usb-audio: Fix race against the error recovery URB submission
  ALSA: line6: Sync the pending work cancel at disconnection
  ALSA: line6: Perform sanity check for each URB creation
2020-07-17 08:48:19 -07:00
Arnaldo Carvalho de Melo
25d4e7f513 tools arch kvm: Sync kvm headers with the kernel sources
To pick up the changes from:

  83d31e5271 ("KVM: nVMX: fixes for preemption timer migration")

That don't entail changes in tooling.

This silences these tools/perf build warnings:

  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
  diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-17 09:39:16 -03:00
Arnaldo Carvalho de Melo
94fddb7ad0 perf tools: Sync hashmap.h with libbpf's
To pick up the changes in:

  b2f9f1535b ("libbpf: Fix libbpf hashmap on (I)LP32 architectures")

Silencing this warning:

  Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h'
  diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h

I'll eventually update the warning to remove the "Kernel ABI" part
and instead state libbpf when noticing that the original is at
"tools/lib/something".

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Jakub Bogusz <qboosh@pld-linux.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-17 09:35:18 -03:00
Ravi Bangoria
a2db71b912 libsubcmd: Fix OPT_CALLBACK_SET()
Any option macro with _SET suffix should set opt->set variable which is
not happening for OPT_CALLBACK_SET(). This is causing issues with perf
record --switch-output-event. Fix that.

Before:

  # ./perf record --overwrite -e sched:*switch,syscalls:sys_enter_mmap \
           --switch-output-event syscalls:sys_enter_mmap
  ^C[ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.297 MB perf.data (657 samples) ]

After:

  $ ./perf record --overwrite -e sched:*switch,syscalls:sys_enter_mmap \
          --switch-output-event syscalls:sys_enter_mmap
  [ perf record: dump data: Woken up 1 times ]
  [ perf record: Dump perf.data.2020061918144542 ]
  [ perf record: dump data: Woken up 1 times ]
  [ perf record: Dump perf.data.2020061918144608 ]
  [ perf record: dump data: Woken up 1 times ]
  [ perf record: Dump perf.data.2020061918144660 ]
  ^C[ perf record: dump data: Woken up 1 times ]
  [ perf record: Dump perf.data.2020061918144784 ]
  [ perf record: Woken up 0 times to write data ]
  [ perf record: Dump perf.data.2020061918144803 ]
  [ perf record: Captured and wrote 0.419 MB perf.data.<timestamp> ]

Fixes: 636eb4d001 ("libsubcmd: Introduce OPT_CALLBACK_SET()")
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200619133412.50705-1-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-17 09:33:06 -03:00
Qi Liu
f32ed8eb0e drivers/perf: Prevent forced unbinding of PMU drivers
Forcefully unbinding PMU drivers during perf sampling will lead to
a kernel panic, because the perf upper-layer framework call a NULL
pointer in this situation.

To solve this issue, "suppress_bind_attrs" should be set to true, so
that bind/unbind can be disabled via sysfs and prevent unbinding PMU
drivers during perf sampling.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594975763-32966-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-17 10:51:44 +01:00
Will Deacon
bd024e82e4 asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible()
Although mmiowb() is concerned only with serialising MMIO writes occuring
in contexts where a spinlock is held, the call to mmiowb_set_pending()
from the MMIO write accessors can occur in preemptible contexts, such
as during driver probe() functions where ordering between CPUs is not
usually a concern, assuming that the task migration path provides the
necessary ordering guarantees.

Unfortunately, the default implementation of mmiowb_set_pending() is not
preempt-safe, as it makes use of a a per-cpu variable to track its
internal state. This has been reported to generate the following splat
on riscv:

 | BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
 | caller is regmap_mmio_write32le+0x1c/0x46
 | CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.8.0-rc3-hfu+ #1
 | Call Trace:
 |  walk_stackframe+0x0/0x7a
 |  dump_stack+0x6e/0x88
 |  regmap_mmio_write32le+0x18/0x46
 |  check_preemption_disabled+0xa4/0xaa
 |  regmap_mmio_write32le+0x18/0x46
 |  regmap_mmio_write+0x26/0x44
 |  regmap_write+0x28/0x48
 |  sifive_gpio_probe+0xc0/0x1da

Although it's possible to fix the driver in this case, other splats have
been seen from other drivers, including the infamous 8250 UART, and so
it's better to address this problem in the mmiowb core itself.

Fix mmiowb_set_pending() by using the raw_cpu_ptr() to get at the mmiowb
state and then only updating the 'mmiowb_pending' field if we are not
preemptible (i.e. we have a non-zero nesting count).

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Palmer Dabbelt <palmer@dabbelt.com>
Reported-by: Emil Renner Berthing <kernel@esmil.dk>
Tested-by: Emil Renner Berthing <kernel@esmil.dk>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Link: https://lore.kernel.org/r/20200716112816.7356-1-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2020-07-17 10:02:03 +01:00
Linus Torvalds
8882572675 drm fixes for 5.8-rc6
dma-buf:
 - sleeping atomic fix
 
 amdgpu:
 - Fix a race condition with KIQ
 - Preemption fix
 - Fix handling of fake MST encoders
 - OLED panel fix
 - Handle allocation failure in stream construction
 - Renoir SMC fix
 - SDMA 5.x fix
 
 i915:
 - FBC w/a stride fix
 - Fix use-after-free fix on module reload
 - Ignore irq enabling on the virtual engines to fix device sleep
 - Use GTT when saving/restoring engine GPR
 - Fix selftest sort function
 
 vmwgfx:
 - black screen fix
 
 aspeed:
 - fbcon init warn fix
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Merge tag 'drm-fixes-2020-07-17-1' of git://anongit.freedesktop.org/drm/drm into master

Pull drm fixes from Dave Airlie:
 "Weekly fixes pull, big bigger than I'd normally like, but they are
  fairly scattered and small individually.

  The vmwgfx one is a black screen regression, otherwise the largest is
  an MST encoder fix for amdgpu which results in a WARN in some cases,
  and a scattering of i915 fixes.

  I'm tracking two regressions at the moment that hopefully we get
  nailed down this week for rc7.

  dma-buf:
   - sleeping atomic fix

  amdgpu:
   - Fix a race condition with KIQ
   - Preemption fix
   - Fix handling of fake MST encoders
   - OLED panel fix
   - Handle allocation failure in stream construction
   - Renoir SMC fix
   - SDMA 5.x fix

  i915:
   - FBC w/a stride fix
   - Fix use-after-free fix on module reload
   - Ignore irq enabling on the virtual engines to fix device sleep
   - Use GTT when saving/restoring engine GPR
   - Fix selftest sort function

  vmwgfx:
   - black screen fix

  aspeed:
   - fbcon init warn fix"

* tag 'drm-fixes-2020-07-17-1' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu/sdma5: fix wptr overwritten in ->get_wptr()
  drm/amdgpu/powerplay: Modify SMC message name for setting power profile mode
  drm/amd/display: handle failed allocation during stream construction
  drm/amd/display: OLED panel backlight adjust not work with external display connected
  drm/amdgpu/display: create fake mst encoders ahead of time (v4)
  drm/amdgpu: fix preemption unit test
  drm/amdgpu/gfx10: fix race condition for kiq
  drm/i915: Recalculate FBC w/a stride when needed
  drm/i915: Move cec_notifier to intel_hdmi_connector_unregister, v2.
  drm/i915/gt: Only swap to a random sibling once upon creation
  drm/i915/gt: Ignore irq enabling on the virtual engines
  drm/i915/perf: Use GTT when saving/restoring engine GPR
  drm/i915/selftests: Fix compare functions provided for sorting
  drm/vmwgfx: fix update of display surface when resolution changes
  dmabuf: use spinlock to access dmabuf->name
  drm/aspeed: Call drm_fbdev_generic_setup after drm_dev_register
2020-07-16 21:39:51 -07:00
Dave Airlie
adbe8a3cae Merge tag 'amd-drm-fixes-5.8-2020-07-15' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.8-2020-07-15:

amdgpu:
- Fix a race condition with KIQ
- Preemption fix
- Fix handling of fake MST encoders
- OLED panel fix
- Handle allocation failure in stream construction
- Renoir SMC fix
- SDMA 5.x fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200715213914.3994-1-alexander.deucher@amd.com
2020-07-17 13:29:00 +10:00