# git rev-parse -q --verify 1c54d3c15afacf179c07ce6c57a0d43f412f1b3a^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable.git linux-5.4.y
# git rev-parse -q --verify 1c54d3c15afacf179c07ce6c57a0d43f412f1b3a^{commit}
1c54d3c15afacf179c07ce6c57a0d43f412f1b3a
# git checkout -q -f -B kisskb 1c54d3c15afacf179c07ce6c57a0d43f412f1b3a
# git clean -qxdf
# < git log -1
# commit 1c54d3c15afacf179c07ce6c57a0d43f412f1b3a
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Thu Jul 9 09:37:57 2020 +0200
# 
#     Linux 5.4.51
# < /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 1c54d3c15afacf179c07ce6c57a0d43f412f1b3a
# < make -s -j 24 ARCH=s390 O=/kisskb/build/stable-5.4_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 24 ARCH=s390 O=/kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 24 ARCH=s390 O=/kisskb/build/stable-5.4_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 24 ARCH=s390 O=/kisskb/build/stable-5.4_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-5.4_s390-defconfig_s390x-gcc4.9
# Build took: 0:09:40.339200