# git rev-parse -q --verify 29bb8b3fc24fda91eecc1df462f055d60eab817f^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.9.y
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 29bb8b3fc24fda91eecc1df462f055d60eab817f^{commit}
29bb8b3fc24fda91eecc1df462f055d60eab817f
# git checkout -q -f -B kisskb 29bb8b3fc24fda91eecc1df462f055d60eab817f
# git clean -qxdf
# < git log -1
# commit 29bb8b3fc24fda91eecc1df462f055d60eab817f
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Wed Aug 4 11:58:04 2021 +0200
# 
#     Linux 4.9.278
#     
#     Link: https://lore.kernel.org/r/20210802134332.931915241@linuxfoundation.org
#     Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
#     Tested-by: Jon Hunter <jonathanh@nvidia.com>
#     Tested-by: Guenter Roeck <linux@roeck-us.net>
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 29bb8b3fc24fda91eecc1df462f055d60eab817f
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.9_powerpc-allnoconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  allnoconfig
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.9_powerpc-allnoconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.9_powerpc-allnoconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-4.9_powerpc-allnoconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/l2cr_6xx.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/l2cr_6xx.S:184: Warning: invalid register expression
/kisskb/src/arch/powerpc/kernel/l2cr_6xx.S:331: Warning: invalid register expression
Completed OK
# rm -rf /kisskb/build/stable-4.9_powerpc-allnoconfig_powerpc-gcc4.9
# Build took: 0:03:10.467919