# git rev-parse -q --verify bb3540be73ca1e483aa977d859960895fe85372d^{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 bb3540be73ca1e483aa977d859960895fe85372d^{commit}
bb3540be73ca1e483aa977d859960895fe85372d
# git checkout -q -f -B kisskb bb3540be73ca1e483aa977d859960895fe85372d
# git clean -qxdf
# < git log -1
# commit bb3540be73ca1e483aa977d859960895fe85372d
# Merge: 67ff377bc30c 48ab6d5d1f09
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Oct 31 12:25:58 2020 -0700
# 
#     Merge tag 'dma-mapping-5.10-2' of git://git.infradead.org/users/hch/dma-mapping
#     
#     Pull dma-mapping fix from Christoph Hellwig:
#      "Fix an integer overflow on 32-bit platforms in the new DMA range code
#       (Geert Uytterhoeven)"
#     
#     * tag 'dma-mapping-5.10-2' of git://git.infradead.org/users/hch/dma-mapping:
#       dma-mapping: fix 32-bit overflow with CONFIG_ARM_LPAE=n
# < /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 bb3540be73ca1e483aa977d859960895fe85372d
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_mainstone_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  mainstone_defconfig
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_mainstone_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_mainstone_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_mainstone_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_mainstone_defconfig_arm-gcc4.9
# Build took: 0:00:44.122084