# git rev-parse -q --verify c6d8570e4d642a0c0bfbe7362ffa1b1433c72db1^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify c6d8570e4d642a0c0bfbe7362ffa1b1433c72db1^{commit}
c6d8570e4d642a0c0bfbe7362ffa1b1433c72db1
# git checkout -q -f -B kisskb c6d8570e4d642a0c0bfbe7362ffa1b1433c72db1
# git clean -qxdf
# < git log -1
# commit c6d8570e4d642a0c0bfbe7362ffa1b1433c72db1
# Merge: a81bfdf8bf53 92c75f7594d5
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Feb 12 11:48:02 2021 -0800
# 
#     Merge tag 'io_uring-5.11-2021-02-12' of git://git.kernel.dk/linux-block
#     
#     Pull io_uring fix from Jens Axboe:
#      "Revert of a patch from this release that caused a regression"
#     
#     * tag 'io_uring-5.11-2021-02-12' of git://git.kernel.dk/linux-block:
#       Revert "io_uring: don't take fs for recvmsg/sendmsg"
# < /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 c6d8570e4d642a0c0bfbe7362ffa1b1433c72db1
# < 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: 0:01:01.933887