Error: kernelrelease not valid - run 'make prepare' to update it

kernel test robot
2021-08-11T03:47:25Z

[-- Attachment #1: Type: text/plain, Size: 2926 bytes --]

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 761c6d7ec820f123b931e7b8ef7ec7c8564e450f
commit: ba64beb17493a4bfec563100c86a462a15926f24 kbuild: check the minimum assembler version in Kconfig
date: 4 months ago
config: powerpc64-randconfig-r013-20210809 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d39ebdae674c8efc84ebe8dc32716ec353220530)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ba64beb17493a4bfec563100c86a462a15926f24
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ba64beb17493a4bfec563100c86a462a15926f24
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=powerpc prepare

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> Error: kernelrelease not valid - run 'make prepare' to update it
--
clang --target=powerpc64-linux-gnu -no-integrated-as --prefix=powerpc64-linux-gnu- -Werror=unknown-warning-option: unknown assembler invoked
scripts/Kconfig.include:50: Sorry, this assembler is not supported.
make[3]: *** [scripts/kconfig/Makefile:63: syncconfig] Error 1
make[2]: *** [Makefile:617: syncconfig] Error 2
make[1]: *** [Makefile:726: include/config/auto.conf.cmd] Error 2
make[1]: Failed to remake makefile 'include/config/auto.conf.cmd'.
make[1]: Failed to remake makefile 'include/config/auto.conf'.
>> make[1]: *** No rule to make target 'modules_prepare'.
make: *** [Makefile:215: __sub-make] Error 2
make: Target 'modules_prepare' not remade because of errors.
--
clang --target=powerpc64-linux-gnu -no-integrated-as --prefix=powerpc64-linux-gnu- -Werror=unknown-warning-option: unknown assembler invoked
scripts/Kconfig.include:50: Sorry, this assembler is not supported.
make[3]: *** [scripts/kconfig/Makefile:63: syncconfig] Error 1
make[2]: *** [Makefile:617: syncconfig] Error 2
make[1]: *** [Makefile:726: include/config/auto.conf.cmd] Error 2
make[1]: Failed to remake makefile 'include/config/auto.conf.cmd'.
make[1]: Failed to remake makefile 'include/config/auto.conf'.
>> Error: kernelrelease not valid - run 'make prepare' to update it
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:215: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 21493 bytes --]