# git rev-parse -q --verify bb4f008d1e075986888ad01579c21f79b62f5775^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/stable linux-4.9.y
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 bb4f008d1e075986888ad01579c21f79b62f5775^{commit}
bb4f008d1e075986888ad01579c21f79b62f5775
# git checkout -q -f -B kisskb bb4f008d1e075986888ad01579c21f79b62f5775
# git clean -qxdf
# < git log -1
# commit bb4f008d1e075986888ad01579c21f79b62f5775
# Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# Date:   Fri May 10 17:52:11 2019 +0200
# 
#     Linux 4.9.175
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-ld --version
# < git log --format=%s --max-count=1 bb4f008d1e075986888ad01579c21f79b62f5775
# < make -s -j 120 ARCH=mips O=/kisskb/build/stable-4.9_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  defconfig
# make -s -j 120 ARCH=mips O=/kisskb/build/stable-4.9_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  
/kisskb/src/arch/mips/vdso/Makefile:30: MIPS VDSO requires binutils >= 2.25
/kisskb/src/arch/mips/vdso/Makefile:30: MIPS VDSO requires binutils >= 2.25
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/stable-4.9_mips-defconfig_mips
# Build took: 0:01:06.171292