# git rev-parse -q --verify 8b7fd679427c571c34f61d9eafed3562c52424ae^{commit}
8b7fd679427c571c34f61d9eafed3562c52424ae
already have revision, skipping fetch
# git checkout -q -f -B kisskb 8b7fd679427c571c34f61d9eafed3562c52424ae
# git clean -qxdf
# < git log -1
# commit 8b7fd679427c571c34f61d9eafed3562c52424ae
# Merge: 0432a0a066b0 b3c303be4c35
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Aug 3 10:58:46 2019 -0700
# 
#     Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull perf tooling fixes from Thomas Gleixner:
#      "A set of updates for perf tools and documentation:
#     
#       perf header:
#         - Prevent a division by zero
#         - Deal with an uninitialized warning proper
#     
#       libbpf:
#         - Fix the missiong __WORDSIZE definition for musl & al
#     
#       UAPI headers:
#         - Synchronize kernel headers
#     
#       Documentation:
#         - Fix the memory units for perf.data size"
#     
#     * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       libbpf: fix missing __WORDSIZE definition
#       perf tools: Fix perf.data documentation units for memory size
#       perf header: Fix use of unitialized value warning
#       perf header: Fix divide by zero error if f_header.attr_size==0
#       tools headers UAPI: Sync if_link.h with the kernel
#       tools headers UAPI: Sync sched.h with the kernel
#       tools headers UAPI: Sync usbdevice_fs.h with the kernels to get new ioctl
#       tools perf beauty: Fix usbdevfs_ioctl table generator to handle _IOC()
#       tools headers UAPI: Update tools's copy of drm.h headers
#       tools headers UAPI: Update tools's copy of mman.h headers
#       tools headers UAPI: Update tools's copy of kvm.h headers
#       tools include UAPI: Sync x86's syscalls_64.tbl and generic unistd.h to pick up clone3 and pidfd_open
# < /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 8b7fd679427c571c34f61d9eafed3562c52424ae
# < make -s -j 48 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 48 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:18:
/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:1618:2: note: in expansion of macro 'atomic_xchg'
  atomic_xchg(&devip->stopped, stop);
  ^~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_a500_defconfig_parisc64
# Build took: 0:01:18.297444