# git rev-parse -q --verify 635de956a7f5a6ffcb04f29d70630c64c717b56b^{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 635de956a7f5a6ffcb04f29d70630c64c717b56b^{commit}
635de956a7f5a6ffcb04f29d70630c64c717b56b
# git checkout -q -f -B kisskb 635de956a7f5a6ffcb04f29d70630c64c717b56b
# git clean -qxdf
# < git log -1
# commit 635de956a7f5a6ffcb04f29d70630c64c717b56b
# Merge: d0cc7ecacba8 a500fc918f7b
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Apr 29 11:41:43 2021 -0700
# 
#     Merge tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 tlb updates from Ingo Molnar:
#      "The x86 MM changes in this cycle were:
#     
#        - Implement concurrent TLB flushes, which overlaps the local TLB
#          flush with the remote TLB flush.
#     
#          In testing this improved sysbench performance measurably by a
#          couple of percentage points, especially if TLB-heavy security
#          mitigations are active.
#     
#        - Further micro-optimizations to improve the performance of TLB
#          flushes"
#     
#     * tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       smp: Micro-optimize smp_call_function_many_cond()
#       smp: Inline on_each_cpu_cond() and on_each_cpu()
#       x86/mm/tlb: Remove unnecessary uses of the inline keyword
#       cpumask: Mark functions as pure
#       x86/mm/tlb: Do not make is_lazy dirty for no reason
#       x86/mm/tlb: Privatize cpu_tlbstate
#       x86/mm/tlb: Flush remote and local TLBs concurrently
#       x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy()
#       x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote()
#       smp: Run functions concurrently in smp_call_function_many_cond()
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 635de956a7f5a6ffcb04f29d70630c64c717b56b
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  randconfig
KCONFIG_SEED=0xBE816053
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:05:57.617839