# git rev-parse -q --verify 865c50e1d279671728c2936cb7680eb89355eeea^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 865c50e1d279671728c2936cb7680eb89355eeea^{commit}
865c50e1d279671728c2936cb7680eb89355eeea
# git checkout -q -f -B kisskb 865c50e1d279671728c2936cb7680eb89355eeea
# git clean -qxdf
# < git log -1
# commit 865c50e1d279671728c2936cb7680eb89355eeea
# Author: Nick Desaulniers <ndesaulniers@google.com>
# Date:   Fri Aug 7 13:59:18 2020 -0700
# 
#     x86/uaccess: utilize CONFIG_CC_HAS_ASM_GOTO_OUTPUT
#     
#     Clang-11 shipped support for outputs to asm goto statments along the
#     fallthrough path.  Double up some of the get_user() and related macros
#     to be able to take advantage of this extended GNU C extension. This
#     should help improve the generated code's performance for these accesses.
#     
#     Cc: Bill Wendling <morbo@google.com>
#     Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
#     Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 865c50e1d279671728c2936cb7680eb89355eeea
# < make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
KCONFIG_SEED=0x3044881C
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 24 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
/kisskb/src/arch/arm64/boot/dts/qcom/ipq6018.dtsi:127.3-14: Warning (dma_ranges_format): /soc:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2)
/kisskb/src/arch/arm64/boot/dts/qcom/ipq6018.dtsi:127.3-14: Warning (dma_ranges_format): /soc:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2)
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8
# Build took: 0:04:09.171072