# git gc
# git rev-parse -q --verify ec6f5e0e5ca0764b4bc522c9f9d5abf876a0e3e3^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify ec6f5e0e5ca0764b4bc522c9f9d5abf876a0e3e3^{commit}
ec6f5e0e5ca0764b4bc522c9f9d5abf876a0e3e3
# git checkout -q -f -B kisskb ec6f5e0e5ca0764b4bc522c9f9d5abf876a0e3e3
# git clean -qxdf
# < git log -1
# commit ec6f5e0e5ca0764b4bc522c9f9d5abf876a0e3e3
# Merge: d2360a398f0b 0d07c0ec4381
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Dec 13 11:31:19 2020 -0800
# 
#     Merge tag 'x86-urgent-2020-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 fixes from Thomas Gleixner:
#      "A set of x86 and membarrier fixes:
#     
#        - Correct a few problems in the x86 and the generic membarrier
#          implementation. Small corrections for assumptions about visibility
#          which have turned out not to be true.
#     
#        - Make the PAT bits for memory encryption correct vs 4K and 2M/1G
#          page table entries as they are at a different location.
#     
#        - Fix a concurrency issue in the the local bandwidth readout of
#          resource control leading to incorrect values
#     
#        - Fix the ordering of allocating a vector for an interrupt. The order
#          missed to respect the provided cpumask when the first attempt of
#          allocating node local in the mask fails. It then tries the node
#          instead of trying the full provided mask first. This leads to
#          erroneous error messages and breaking the (user) supplied affinity
#          request. Reorder it.
#     
#        - Make the INT3 padding detection in optprobe work correctly"
#     
#     * tag 'x86-urgent-2020-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/kprobes: Fix optprobe to detect INT3 padding correctly
#       x86/apic/vector: Fix ordering in vector assignment
#       x86/resctrl: Fix incorrect local bandwidth when mba_sc is enabled
#       x86/mm/mem_encrypt: Fix definition of PMD_FLAGS_DEC_WP
#       membarrier: Execute SYNC_CORE on the calling thread
#       membarrier: Explicitly sync remote cores when SYNC_CORE is requested
#       membarrier: Add an actual barrier before rseq_preempt()
#       x86/membarrier: Get rid of a dubious optimization
# < /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 ec6f5e0e5ca0764b4bc522c9f9d5abf876a0e3e3
# < make -s -j 24 ARCH=arm O=/kisskb/build/linus_magician_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  magician_defconfig
# < make -s -j 24 ARCH=arm O=/kisskb/build/linus_magician_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 24 ARCH=arm O=/kisskb/build/linus_magician_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 24 ARCH=arm O=/kisskb/build/linus_magician_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_magician_defconfig_arm-gcc4.9
# Build took: 0:06:05.623482