# git rev-parse -q --verify 6c0a8f6b5a45ac892a763b6299bd3c5324fc5e02^{commit}
6c0a8f6b5a45ac892a763b6299bd3c5324fc5e02
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6c0a8f6b5a45ac892a763b6299bd3c5324fc5e02
# git clean -qxdf
# < git log -1
# commit 6c0a8f6b5a45ac892a763b6299bd3c5324fc5e02
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Tue May 8 14:59:56 2018 +1000
# 
#     powerpc/pseries: Fix CONFIG_NUMA=n build
#     
#     The build is failing with CONFIG_NUMA=n and some compiler versions:
#     
#       arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_online_cpu':
#       hotplug-cpu.c:(.text+0x12c): undefined reference to `timed_topology_update'
#       arch/powerpc/platforms/pseries/hotplug-cpu.o: In function `dlpar_cpu_remove':
#       hotplug-cpu.c:(.text+0x400): undefined reference to `timed_topology_update'
#     
#     Fix it by moving the empty version of timed_topology_update() into the
#     existing #ifdef block, which has the right guard of SPLPAR && NUMA.
#     
#     Fixes: cee5405da402 ("powerpc/hotplug: Improve responsiveness of hotplug change")
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version
# < git log --format=%s --max-count=1 6c0a8f6b5a45ac892a763b6299bd3c5324fc5e02
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64le_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  ppc64le_defconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64le_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
WARNING: modpost: Found 3 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_ppc64le_defconfig_ppc64le
# Build took: 0:03:40.553880