# git rev-parse -q --verify 63f25644c092922eee5086888f2a6e0a97702723^{commit}
63f25644c092922eee5086888f2a6e0a97702723
already have revision, skipping fetch
# git checkout -q -f -B kisskb 63f25644c092922eee5086888f2a6e0a97702723
# git clean -qxdf
# < git log -1
# commit 63f25644c092922eee5086888f2a6e0a97702723
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Thu Nov 21 19:16:25 2019 +1100
# 
#     Fixup callchain
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 63f25644c092922eee5086888f2a6e0a97702723
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x43c8): 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/powerpc-next_powernv_defconfig_powerpc-gcc8
# Build took: 0:03:24.000324