# git rev-parse -q --verify 865c50e1d279671728c2936cb7680eb89355eeea^{commit}
865c50e1d279671728c2936cb7680eb89355eeea
already have revision, skipping fetch
# git checkout -q -f -B kisskb 865c50e1d279671728c2936cb7680eb89355eeea
# git clean -qxdf
# < git log -1
# commit 865c50e1d279671728c2936cb7680eb89355eeea
# Author: Nick Desaulniers <ndesaulniers@google.com>
# Date:   Fri Aug 7 13:59:18 2020 -0700
# 
#     x86/uaccess: utilize CONFIG_CC_HAS_ASM_GOTO_OUTPUT
#     
#     Clang-11 shipped support for outputs to asm goto statments along the
#     fallthrough path.  Double up some of the get_user() and related macros
#     to be able to take advantage of this extended GNU C extension. This
#     should help improve the generated code's performance for these accesses.
#     
#     Cc: Bill Wendling <morbo@google.com>
#     Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
#     Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 865c50e1d279671728c2936cb7680eb89355eeea
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_chrp32_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  chrp32_defconfig
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_chrp32_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_chrp32_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_chrp32_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/block/genhd.c: In function 'diskstats_show':
/kisskb/src/block/genhd.c:1667:1: warning: the frame size of 1168 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
Completed OK
# rm -rf /kisskb/build/linus_chrp32_defconfig_powerpc-gcc4.9
# Build took: 0:01:25.320645