# git rev-parse -q --verify 82821be8a2e14bdf359be577400be88b2f1eb8a7^{commit}
82821be8a2e14bdf359be577400be88b2f1eb8a7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 82821be8a2e14bdf359be577400be88b2f1eb8a7
# git clean -qxdf
# < git log -1
# commit 82821be8a2e14bdf359be577400be88b2f1eb8a7
# Merge: f288c895622f 3a57a643a851
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Jan 15 13:11:51 2021 -0800
# 
#     Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
#     
#     Pull arm64 fixes from Catalin Marinas:
#     
#      - Set the minimum GCC version to 5.1 for arm64 due to earlier compiler
#        bugs.
#     
#      - Make atomic helpers __always_inline to avoid a section mismatch when
#        compiling with clang.
#     
#      - Fix the CMA and crashkernel reservations to use ZONE_DMA (remove the
#        arm64_dma32_phys_limit variable, no longer needed with a dynamic
#        ZONE_DMA sizing in 5.11).
#     
#      - Remove redundant IRQ flag tracing that was leaving lockdep
#        inconsistent with the hardware state.
#     
#      - Revert perf events based hard lockup detector that was causing
#        smp_processor_id() to be called in preemptible context.
#     
#      - Some trivial cleanups - spelling fix, renaming S_FRAME_SIZE to
#        PT_REGS_SIZE, function prototypes added.
#     
#     * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
#       arm64: selftests: Fix spelling of 'Mismatch'
#       arm64: syscall: include prototype for EL0 SVC functions
#       compiler.h: Raise minimum version of GCC to 5.1 for arm64
#       arm64: make atomic helpers __always_inline
#       arm64: rename S_FRAME_SIZE to PT_REGS_SIZE
#       Revert "arm64: Enable perf events based hard lockup detector"
#       arm64: entry: remove redundant IRQ flag tracing
#       arm64: Remove arm64_dma32_phys_limit and its uses
# < /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 82821be8a2e14bdf359be577400be88b2f1eb8a7
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_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:33: LSE atomics not supported by binutils
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc5.4
# Build took: 0:06:04.292975