# git rev-parse -q --verify 1c601f4bedae8a01838b97e3876a8128f6eb066c^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/mpe/kisskb master
warning: 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 1c601f4bedae8a01838b97e3876a8128f6eb066c^{commit}
1c601f4bedae8a01838b97e3876a8128f6eb066c
# git checkout -q -f -B kisskb 1c601f4bedae8a01838b97e3876a8128f6eb066c
# git clean -qxdf
# < git log -1
# commit 1c601f4bedae8a01838b97e3876a8128f6eb066c
# Author: Mike Kravetz <mike.kravetz@oracle.com>
# Date:   Tue Nov 5 16:00:20 2019 -0800
# 
#     powerpc/mm: remove pmd_huge/pud_huge stubs and include hugetlb.h
#     
#     This removes the power specific stubs created by commit aad71e3928be
#     ("powerpc/mm: Fix build break with RADIX=y & HUGETLBFS=n") used when
#     !CONFIG_HUGETLB_PAGE.  Instead, it addresses the build break by
#     getting the definitions from <linux/hugetlb.h>.
#     
#     Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-ld --version
# < git log --format=%s --max-count=1 1c601f4bedae8a01838b97e3876a8128f6eb066c
# < make -s -j 8 ARCH=i386 O=/kisskb/build/mpe_i386_defconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  i386_defconfig
# make -s -j 8 ARCH=i386 O=/kisskb/build/mpe_i386_defconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:309: checkbin] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 8 ARCH=i386 O=/kisskb/build/mpe_i386_defconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/mpe_i386_defconfig_i386-gcc4.9
# Build took: 0:00:37.551082