# git rev-parse -q --verify 6f8f5c79416e62dbf005d41b72c196d372e17ad3^{commit}
6f8f5c79416e62dbf005d41b72c196d372e17ad3
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6f8f5c79416e62dbf005d41b72c196d372e17ad3
# git clean -qxdf
# < git log -1
# commit 6f8f5c79416e62dbf005d41b72c196d372e17ad3
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Mon Feb 17 21:43:05 2020 +0100
# 
#     Linux 5.4.21-rc1
# < /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 6f8f5c79416e62dbf005d41b72c196d372e17ad3
# < make -s -j 32 ARCH=arm O=/kisskb/build/stable-rc-5.4_versatile_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  versatile_defconfig
# make -s -j 32 ARCH=arm O=/kisskb/build/stable-rc-5.4_versatile_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL
Completed OK
# rm -rf /kisskb/build/stable-rc-5.4_versatile_defconfig_arm-gcc4.9
# Build took: 0:00:49.992596