# git rev-parse -q --verify b32e56e5a87a1f9243db92bc7a5df0ffb4627cfb^{commit}
b32e56e5a87a1f9243db92bc7a5df0ffb4627cfb
already have revision, skipping fetch
# git checkout -q -f -B kisskb b32e56e5a87a1f9243db92bc7a5df0ffb4627cfb
# git clean -qxdf
# < git log -1
# commit b32e56e5a87a1f9243db92bc7a5df0ffb4627cfb
# Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
# Date:   Wed Apr 11 15:17:59 2018 +1000
# 
#     powerpc/xive: Fix trying to "push" an already active pool VP
#     
#     When setting up a CPU, we "push" (activate) a pool VP for it.
#     
#     However it's an error to do so if it already has an active
#     pool VP.
#     
#     This happens when doing soft CPU hotplug on powernv since we
#     don't tear down the CPU on unplug. The HW flags the error which
#     gets captured by the diagnostics.
#     
#     Fix this by making sure to "pull" out any already active pool
#     first.
#     
#     Fixes: 243e25112d06 ("powerpc/xive: Native exploitation of the XIVE interrupt controller")
#     Cc: stable@vger.kernel.org # v4.12+
#     Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 b32e56e5a87a1f9243db92bc7a5df0ffb4627cfb
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pmac32_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pmac32_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-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:220:9: 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 0x89c42c) 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-5.3
# Build took: 0:01:28.813104