# git rev-parse -q --verify 7ddd09fc4b745fb1d8942f95389583e08412e0cd^{commit}
7ddd09fc4b745fb1d8942f95389583e08412e0cd
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7ddd09fc4b745fb1d8942f95389583e08412e0cd
# git clean -qxdf
# < git log -1
# commit 7ddd09fc4b745fb1d8942f95389583e08412e0cd
# Author: Stephen Rothwell <sfr@canb.auug.org.au>
# Date:   Fri Dec 20 16:04:08 2019 +1100
# 
#     Add linux-next specific files for 20191220
#     
#     Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
# < /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 7ddd09fc4b745fb1d8942f95389583e08412e0cd
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/linux-next_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/linux-next_powernv_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: 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/linux-next_powernv_defconfig_ppc64le-gcc5
# Build took: 0:03:18.359640