# git rev-parse -q --verify abf15916bd65f808b07fe9a2377db965a37071e4^{commit}
abf15916bd65f808b07fe9a2377db965a37071e4
already have revision, skipping fetch
# git checkout -q -f -B kisskb abf15916bd65f808b07fe9a2377db965a37071e4
# git clean -qxdf
# < git log -1
# commit abf15916bd65f808b07fe9a2377db965a37071e4
# Author: Christophe Leroy <christophe.leroy@c-s.fr>
# Date:   Sun Jan 19 17:09:47 2020 +0000
# 
#     powerpc/64: Bring back time functions in compat VDSO32 build
#     
#     In order to build a 32 bit VDSO for PPC64, fake a 32 bits config
#     for the build of generic C VDSO gettimeodday.
# < /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 abf15916bd65f808b07fe9a2377db965a37071e4
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/chleroy_powernv_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# Added to kconfig CONFIG_NUMA=n
# yes \n | make -s -j 10 ARCH=powerpc O=/kisskb/build/chleroy_powernv_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 10 ARCH=powerpc O=/kisskb/build/chleroy_powernv_defconfig+NO_NUMA_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/chleroy_powernv_defconfig+NO_NUMA_ppc64le-gcc5
# Build took: 0:05:51.524808