# git rev-parse -q --verify ba4f184e126b751d1bffad5897f263108befc780^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify ba4f184e126b751d1bffad5897f263108befc780^{commit}
ba4f184e126b751d1bffad5897f263108befc780
# git checkout -q -f -B kisskb ba4f184e126b751d1bffad5897f263108befc780
# git clean -qxdf
# < git log -1
# commit ba4f184e126b751d1bffad5897f263108befc780
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Sep 20 16:33:55 2020 -0700
# 
#     Linux 5.9-rc6
# < /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 ba4f184e126b751d1bffad5897f263108befc780
# < 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=0xD151FDDA
# 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:5374:warning: override: reassigning to symbol STANDALONE
.config:5375: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-  
/kisskb/src/drivers/dax/super.c:325:6: error: redefinition of 'dax_supported'
 bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
      ^~~~~~~~~~~~~
In file included from /kisskb/src/drivers/dax/super.c:16:
/kisskb/src/include/linux/dax.h:162:20: note: previous definition of 'dax_supported' was here
 static inline bool dax_supported(struct dax_device *dax_dev,
                    ^~~~~~~~~~~~~
make[3]: *** [/kisskb/src/scripts/Makefile.build:283: drivers/dax/super.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:500: drivers/dax] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1784: drivers] Error 2
make: *** [Makefile:185: __sub-make] Error 2
Command '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-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:04:12.361883