# git rev-parse -q --verify e91ef5bcdeda8956eb9f1972ed90198b698dca0f^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable.git linux-5.2.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 e91ef5bcdeda8956eb9f1972ed90198b698dca0f^{commit}
e91ef5bcdeda8956eb9f1972ed90198b698dca0f
# git checkout -q -f -B kisskb e91ef5bcdeda8956eb9f1972ed90198b698dca0f
# git clean -qxdf
# < git log -1
# commit e91ef5bcdeda8956eb9f1972ed90198b698dca0f
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Fri Oct 11 18:22:37 2019 +0200
# 
#     Linux 5.2.21
# < /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 e91ef5bcdeda8956eb9f1972ed90198b698dca0f
# < make -s -j 48 ARCH=s390 O=/kisskb/build/stable-5.2_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 48 ARCH=s390 O=/kisskb/build/stable-5.2_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-5.2_s390-defconfig_s390x-gcc4.9
# Build took: 0:05:26.090613