linux-kernel - Re: [PATCH] kbuild: fix build failure by scripts/check-local-export

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Date:   Tue, 7 Jun 2022 04:16:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Sedat Dilek <sedat.dilek@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH] kbuild: fix build failure by scripts/check-local-export

Hi Tetsuo,

I love your patch! Yet something to improve:

[auto build test ERROR on masahiroy-kbuild/for-next]
[also build test ERROR on linus/master v5.19-rc1 next-20220606]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/intel-lab-lkp/linux/commits/Tetsuo-Handa/kbuild-fix-build-failure-by-scripts-check-local-export/20220606-234446
base:   https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git for-next
config: arm-mxs_defconfig (https://download.01.org/0day-ci/archive/20220607/202206070434.3wvNWfJZ-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel-lab-lkp/linux/commit/7047234a52a99a58113ebe0502e1c227af2b6c61
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Tetsuo-Handa/kbuild-fix-build-failure-by-scripts-check-local-export/20220606-234446
        git checkout 7047234a52a99a58113ebe0502e1c227af2b6c61
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm prepare

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
   scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
   scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
>> llvm-nm: error: : unknown argument '--'
   make[2]: *** [scripts/Makefile.build:249: scripts/mod/empty.o] Error 1
   make[2]: *** Deleting file 'scripts/mod/empty.o'
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1195: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp