# git rev-parse -q --verify ccc1d052eff9f3cfe59d201263903fe1d46c79a5^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus 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 ccc1d052eff9f3cfe59d201263903fe1d46c79a5^{commit}
ccc1d052eff9f3cfe59d201263903fe1d46c79a5
# git checkout -q -f -B kisskb ccc1d052eff9f3cfe59d201263903fe1d46c79a5
# git clean -qxdf
# < git log -1
# commit ccc1d052eff9f3cfe59d201263903fe1d46c79a5
# Merge: 1ccfa66d94cf ce65d55f92a6
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Sep 29 10:35:42 2020 -0700
# 
#     Merge tag 'dmaengine-fix-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
#     
#     Pull dmaengine fix from Vinod Koul:
#      "Fix dmatest for misconfigured channel"
#     
#     * tag 'dmaengine-fix-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
#       dmaengine: dmatest: Prevent to run on misconfigured channel
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 ccc1d052eff9f3cfe59d201263903fe1d46c79a5
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpd270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  lpd270_defconfig
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpd270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpd270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpd270_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
Completed OK
# rm -rf /kisskb/build/linus_lpd270_defconfig_arm-gcc4.9
# Build took: 0:00:50.398355