# git rev-parse -q --verify d012a7190fc1fd72ed48911e77ca97ba4521bccd^{commit}
d012a7190fc1fd72ed48911e77ca97ba4521bccd
already have revision, skipping fetch
# git checkout -q -f -B kisskb d012a7190fc1fd72ed48911e77ca97ba4521bccd
# git clean -qxdf
# < git log -1
# commit d012a7190fc1fd72ed48911e77ca97ba4521bccd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Aug 23 14:08:43 2020 -0700
# 
#     Linux 5.9-rc2
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-ld --version
# < git log --format=%s --max-count=1 d012a7190fc1fd72ed48911e77ca97ba4521bccd
# < make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  defconfig
# < make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  help
# make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  olddefconfig
# make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
Completed OK
# rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa
# Build took: 0:01:00.997096