# git gc
# git rev-parse -q --verify 9f27b7f4a193786bae731a293fc61de389cd549f^{commit}
9f27b7f4a193786bae731a293fc61de389cd549f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9f27b7f4a193786bae731a293fc61de389cd549f
# git clean -qxdf
# < git log -1
# commit 9f27b7f4a193786bae731a293fc61de389cd549f
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Thu Dec 12 10:57:14 2019 +0100
# 
#     Linux 5.3.16-rc2
# < /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 9f27b7f4a193786bae731a293fc61de389cd549f
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-rc-5.3_powernv_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# make -s -j 32 ARCH=powerpc O=/kisskb/build/stable-rc-5.3_powernv_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x2fd0): 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/stable-rc-5.3_powernv_defconfig_ppc64le-gcc5
# Build took: 0:09:00.305142