# git rev-parse -q --verify 7e0cf1c983b5b24426d130fd949a055d520acc9a^{commit}
7e0cf1c983b5b24426d130fd949a055d520acc9a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7e0cf1c983b5b24426d130fd949a055d520acc9a
# git clean -qxdf
# < git log -1
# commit 7e0cf1c983b5b24426d130fd949a055d520acc9a
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Fri Sep 28 14:53:18 2018 +1000
# 
#     selftests/powerpc: Fix Makefiles for headers_install change
#     
#     Commit b2d35fa5fc80 ("selftests: add headers_install to lib.mk")
#     introduced a requirement that Makefiles more than one level below the
#     selftests directory need to define top_srcdir, but it didn't update
#     any of the powerpc Makefiles.
#     
#     This broke building all the powerpc selftests with eg:
#     
#       make[1]: Entering directory '/src/linux/tools/testing/selftests/powerpc'
#       BUILD_TARGET=/src/linux/tools/testing/selftests/powerpc/alignment; mkdir -p $BUILD_TARGET; make OUTPUT=$BUILD_TARGET -k -C alignment all
#       make[2]: Entering directory '/src/linux/tools/testing/selftests/powerpc/alignment'
#       ../../lib.mk:20: ../../../../scripts/subarch.include: No such file or directory
#       make[2]: *** No rule to make target '../../../../scripts/subarch.include'.
#       make[2]: Failed to remake makefile '../../../../scripts/subarch.include'.
#       Makefile:38: recipe for target 'alignment' failed
#     
#     Fix it by setting top_srcdir in the affected Makefiles.
#     
#     Fixes: b2d35fa5fc80 ("selftests: add headers_install to lib.mk")
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 7e0cf1c983b5b24426d130fd949a055d520acc9a
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_adder875_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  adder875_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_adder875_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Image Name:   Linux-4.19.0-rc3-g7e0cf1c983b5
Created:      Fri Sep 28 22:51:55 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    1910521 Bytes = 1865.74 KiB = 1.82 MiB
Load Address: 00400000
Entry Point:  004001a8
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_adder875_defconfig_powerpc-gcc5
# Build took: 0:00:20.151838