# git rev-parse -q --verify 66c411e178a6dd9422e44ba190e606f3c77ba8a5^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/mpe/kisskb master
error: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 66c411e178a6dd9422e44ba190e606f3c77ba8a5^{commit}
66c411e178a6dd9422e44ba190e606f3c77ba8a5
# git checkout -q -f -B kisskb 66c411e178a6dd9422e44ba190e606f3c77ba8a5
# git clean -qxdf
# < git log -1
# commit 66c411e178a6dd9422e44ba190e606f3c77ba8a5
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Fri Sep 21 22:09:12 2018 +1000
# 
#     Add -Werror and arch/powerpc level
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < git log --format=%s --max-count=1 66c411e178a6dd9422e44ba190e606f3c77ba8a5
# < make -s -j 80 ARCH=arm O=/kisskb/build/mpe_cerfcube_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  cerfcube_defconfig
# make -s -j 80 ARCH=arm O=/kisskb/build/mpe_cerfcube_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2069:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/mpe_cerfcube_defconfig_arm
# Build took: 0:04:55.237230