# git rev-parse -q --verify 865c50e1d279671728c2936cb7680eb89355eeea^{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 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/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 865c50e1d279671728c2936cb7680eb89355eeea
# < make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0x12DA77E4
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# < make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
.config:5205:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
kernel/bpf/core.o: warning: objtool: ___bpf_prog_run()+0x1496: call without frame pointer save/setup
kernel/bpf/core.o: warning: objtool: ___bpf_prog_run()+0x1496: call without frame pointer save/setup
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:07:57.341251