# git rev-parse -q --verify 40e020c129cfc991e8ab4736d2665351ffd1468d^{commit}
40e020c129cfc991e8ab4736d2665351ffd1468d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 40e020c129cfc991e8ab4736d2665351ffd1468d
# git clean -qxdf
# < git log -1
# commit 40e020c129cfc991e8ab4736d2665351ffd1468d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Dec 9 15:31:00 2018 -0800
# 
#     Linux 4.20-rc6
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < git log --format=%s --max-count=1 40e020c129cfc991e8ab4736d2665351ffd1468d
# < make -s -j 10 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  defconfig
# make -s -j 10 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc8
# Build took: 0:09:50.593773