# git rev-parse -q --verify 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
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 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b^{commit}
0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b
# git checkout -q -f -B kisskb 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b
# git clean -qxdf
# < git log -1
# commit 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Mar 21 14:56:43 2021 -0700
# 
#     Linux 5.12-rc4
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b
# < make -s -j 32 ARCH=arm O=/kisskb/build/linus_assabet_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  assabet_defconfig
# < make -s -j 32 ARCH=arm O=/kisskb/build/linus_assabet_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 32 ARCH=arm O=/kisskb/build/linus_assabet_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 32 ARCH=arm O=/kisskb/build/linus_assabet_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
Completed OK
# rm -rf /kisskb/build/linus_assabet_defconfig_arm-gcc4.9
# Build took: 0:00:48.247650