# git rev-parse -q --verify a17e17895c9ef1e30d0af0c1b330deaa2ba9fbb1^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
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 a17e17895c9ef1e30d0af0c1b330deaa2ba9fbb1^{commit}
a17e17895c9ef1e30d0af0c1b330deaa2ba9fbb1
# git checkout -q -f -B kisskb a17e17895c9ef1e30d0af0c1b330deaa2ba9fbb1
# git clean -qxdf
# < git log -1
# commit a17e17895c9ef1e30d0af0c1b330deaa2ba9fbb1
# Merge: 6e1ac8b1a3d9 bcfefb61cd2b
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Tue Jun 2 22:34:15 2020 +0900
# 
#     Merge branch 'kconfig' into for-next
# < /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 a17e17895c9ef1e30d0af0c1b330deaa2ba9fbb1
# < make -s -j 48 ARCH=s390 O=/kisskb/build/kbuild_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/kbuild_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 48 ARCH=s390 O=/kisskb/build/kbuild_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 48 ARCH=s390 O=/kisskb/build/kbuild_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/kbuild_s390-defconfig_s390x-gcc4.9
# Build took: 0:03:50.954072