# git rev-parse -q --verify 5c7e3f3f5cbc31118914ceee969154582ad3aa6b^{commit}
5c7e3f3f5cbc31118914ceee969154582ad3aa6b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5c7e3f3f5cbc31118914ceee969154582ad3aa6b
# git clean -qxdf
# < git log -1
# commit 5c7e3f3f5cbc31118914ceee969154582ad3aa6b
# Merge: 4a5bb973fa03 9def3b1a07c4
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Oct 20 09:35:06 2020 -0700
# 
#     Merge tag 'iommu-fix-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
#     
#     Pull iommu fix from Joerg Roedel:
#      "Fix a build regression with !CONFIG_IOMMU_API"
#     
#     * tag 'iommu-fix-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
#       iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built
# < /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 5c7e3f3f5cbc31118914ceee969154582ad3aa6b
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_collie_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  collie_defconfig
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_collie_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_collie_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_collie_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_collie_defconfig_arm-gcc4.9
# Build took: 0:00:35.757789