# 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 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pmac32_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pmac32_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/sound/ppc/pmac.h:25:0,
                 from /kisskb/src/sound/ppc/awacs.c:29:
/kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init':
/kisskb/src/include/sound/control.h:223:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return _snd_ctl_add_slave(master, slave, 0);
         ^
/kisskb/src/sound/ppc/awacs.c:886:36: note: 'speaker_vol' was declared here
  struct snd_kcontrol *master_vol, *speaker_vol;
                                    ^
INFO: Uncompressed kernel (size 0x8b2720) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x900000)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_pmac32_defconfig_powerpc-gcc5
# Build took: 0:01:21.316460