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

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Date:   Tue, 10 Aug 2021 20:19:28 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     kernel test robot <lkp@...el.com>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Nathan Chancellor <nathan@...nel.org>
Subject: Re: Error: kernelrelease not valid - run 'make prepare' to update it

On 8/10/21 8:16 PM, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   9e723c5380c6e14fb91a8b6950563d040674afdb
> commit: ba64beb17493a4bfec563100c86a462a15926f24 kbuild: check the minimum assembler version in Kconfig
> date:   4 months ago
> config: riscv-randconfig-r025-20210810 (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=riscv prepare
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
>>> Error: kernelrelease not valid - run 'make prepare' to update it
> --
>     clang --target=riscv64-linux-gnu -no-integrated-as --prefix=riscv64-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.

Yes, I have noticed this one and a few other ('static') make targets that
should not need a .config file. I have a note to myself to ask about these,
so thanks for bringing it up.

-- 
~Randy