# git rev-parse -q --verify b29cc9b4582a7d81ce02384206ecc8c9d79c2abc^{commit}
b29cc9b4582a7d81ce02384206ecc8c9d79c2abc
already have revision, skipping fetch
# git checkout -q -f -B kisskb b29cc9b4582a7d81ce02384206ecc8c9d79c2abc
# git clean -qxdf
# < git log -1
# commit b29cc9b4582a7d81ce02384206ecc8c9d79c2abc
# Author: Michal Suchanek <msuchanek@suse.de>
# Date:   Wed Nov 27 23:09:59 2019 +0100
# 
#     powerpc: add link stack flush mitigation status in debugfs.
#     
#     The link stack flush status is not visible in debugfs. It can be enabled
#     even when count cache flush is disabled. Add separate file for its
#     status.
#     
#     Signed-off-by: Michal Suchanek <msuchanek@suse.de>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20191127220959.6208-1-msuchanek@suse.de
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 b29cc9b4582a7d81ce02384206ecc8c9d79c2abc
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mgcoge_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  mgcoge_defconfig
# make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mgcoge_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/head_32.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/head_32.S:934: Warning: invalid register expression
Completed OK
# rm -rf /kisskb/build/powerpc-next_mgcoge_defconfig_powerpc-gcc5
# Build took: 0:00:57.729559