# git rev-parse -q --verify 13d2ce42de8cb98ff952f8de6307f896203854c2^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.19.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 13d2ce42de8cb98ff952f8de6307f896203854c2^{commit}
13d2ce42de8cb98ff952f8de6307f896203854c2
# git checkout -q -f -B kisskb 13d2ce42de8cb98ff952f8de6307f896203854c2
# git clean -qxdf
# < git log -1
# commit 13d2ce42de8cb98ff952f8de6307f896203854c2
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Fri Dec 11 13:25:04 2020 +0100
# 
#     Linux 4.19.163
#     
#     Tested-by: Jon Hunter <jonathanh@nvidia.com>
#     Tested-by: Pavel Machek (CIP) <pavel@denx.de>
#     Tested-by: Shuah Khan <skhan@linuxfoundation.org>
#     Tested-by: Guenter Roeck <linux@roeck-us.net>
#     Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
#     Link: https://lore.kernel.org/r/20201210142602.272595094@linuxfoundation.org
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 13d2ce42de8cb98ff952f8de6307f896203854c2
# < make -s -j 120 ARCH=s390 O=/kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  defconfig
# make -s -j 120 ARCH=s390 O=/kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
Completed OK
# rm -rf /kisskb/build/stable-4.19_s390-defconfig_s390x-gcc4.9
# Build took: 0:03:10.153968