# git rev-parse -q --verify b021f4566a44103b5bf4b548461482b1e7e2a793^{commit}
b021f4566a44103b5bf4b548461482b1e7e2a793
already have revision, skipping fetch
# git checkout -q -f -B kisskb b021f4566a44103b5bf4b548461482b1e7e2a793
# git clean -qxdf
# < git log -1
# commit b021f4566a44103b5bf4b548461482b1e7e2a793
# Merge: d9dac147a2c3 d0812894b44c
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Mon Mar 30 09:46:29 2020 +0900
# 
#     Merge branch 'kbuild-asinstr' into for-next
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 b021f4566a44103b5bf4b548461482b1e7e2a793
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 10 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 10 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: modpost: vmlinux.o(.text+0x2fc8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/kbuild_powernv_defconfig_powerpc-gcc5
# Build took: 0:05:54.074199