# git rev-parse -q --verify 7178fb0b239d1c037876301c116fc9a6c1bd2ac0^{commit}
7178fb0b239d1c037876301c116fc9a6c1bd2ac0
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7178fb0b239d1c037876301c116fc9a6c1bd2ac0
# git clean -qxdf
# < git log -1
# commit 7178fb0b239d1c037876301c116fc9a6c1bd2ac0
# Merge: 70c9fb570b7c 6f55967ad9d9
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun May 5 14:37:25 2019 -0700
# 
#     Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull perf fixes from Ingo Molnar:
#      "I'd like to apologize for this very late pull request: I was dithering
#       through the week whether to send the fixes, and then yesterday Jiri's
#       crash fix for a regression introduced in this cycle clearly marked
#       perf/urgent as 'must merge now'.
#     
#       Most of the commits are tooling fixes, plus there's three kernel fixes
#       via four commits:
#     
#         - race fix in the Intel PEBS code
#     
#         - fix an AUX bug and roll back a previous attempt
#     
#         - fix AMD family 17h generic HW cache-event perf counters
#     
#       The largest diffstat contribution comes from the AMD fix - a new event
#       table is introduced, which is a fairly low risk change but has a large
#       linecount"
#     
#     * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       perf/x86/intel: Fix race in intel_pmu_disable_event()
#       perf/x86/intel/pt: Remove software double buffering PMU capability
#       perf/ring_buffer: Fix AUX software double buffering
#       perf tools: Remove needless asm/unistd.h include fixing build in some places
#       tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv
#       tools build: Add -ldl to the disassembler-four-args feature test
#       perf cs-etm: Always allocate memory for cs_etm_queue::prev_packet
#       perf cs-etm: Don't check cs_etm_queue::prev_packet validity
#       perf report: Report OOM in status line in the GTK UI
#       perf bench numa: Add define for RUSAGE_THREAD if not present
#       tools lib traceevent: Change tag string for error
#       perf annotate: Fix build on 32 bit for BPF annotation
#       tools uapi x86: Sync vmx.h with the kernel
#       perf bpf: Return value with unlocking in perf_env__find_btf()
#       MAINTAINERS: Include vendor specific files under arch/*/events/*
#       perf/x86/amd: Update generic hardware cache events for Family 17h
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa64-linux/bin/hppa64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa64-linux/bin/hppa64-linux-ld --version
# < git log --format=%s --max-count=1 7178fb0b239d1c037876301c116fc9a6c1bd2ac0
# < make -s -j 10 ARCH=parisc O=/kisskb/build/linus_a500_defconfig_parisc64 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa64-linux/bin/hppa64-linux-  a500_defconfig
# make -s -j 10 ARCH=parisc O=/kisskb/build/linus_a500_defconfig_parisc64 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa64-linux/bin/hppa64-linux-  
In file included from /kisskb/src/arch/parisc/include/asm/atomic.h:10,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/arch/parisc/include/asm/bitops.h:13,
                 from /kisskb/src/include/linux/bitops.h:19,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/module.h:9,
                 from /kisskb/src/drivers/scsi/scsi_debug.c:23:
/kisskb/src/drivers/scsi/scsi_debug.c: In function 'resp_start_stop':
/kisskb/src/arch/parisc/include/asm/cmpxchg.h:48:3: warning: value computed is not used [-Wunused-value]
  ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
/kisskb/src/arch/parisc/include/asm/atomic.h:78:30: note: in expansion of macro 'xchg'
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
                              ^~~~
/kisskb/src/drivers/scsi/scsi_debug.c:1623:2: note: in expansion of macro 'atomic_xchg'
  atomic_xchg(&devip->stopped, stop);
  ^~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_a500_defconfig_parisc64
# Build took: 0:02:24.951108