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Message-ID: <202102251823.D39nEole-lkp@intel.com>
Date:   Thu, 25 Feb 2021 18:20:06 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>, ast@...nel.org
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        daniel@...earbox.net, andrii@...nel.org, kafai@...com,
        songliubraving@...com, yhs@...com, john.fastabend@...il.com,
        kpsingh@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH] kallsyms: make arch_get_kallsym static

Hi Jiapeng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.11 next-20210225]
[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/0day-ci/linux/commits/Jiapeng-Chong/kallsyms-make-arch_get_kallsym-static/20210225-151617
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 29c395c77a9a514c5857c45ceae2665e9bd99ac7
config: powerpc64-randconfig-r034-20210225 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a921aaf789912d981cbb2036bdc91ad7289e1523)
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 powerpc64 cross compiling tool for clang build
        # apt-get install binutils-powerpc64-linux-gnu
        # https://github.com/0day-ci/linux/commit/a7d1bbc523397eaea74cc12deaf0de6a73ce105b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jiapeng-Chong/kallsyms-make-arch_get_kallsym-static/20210225-151617
        git checkout a7d1bbc523397eaea74cc12deaf0de6a73ce105b
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 

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 >>):

>> kernel/kallsyms.c:457:12: error: weak declaration cannot have internal linkage
   static int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
              ^
   include/linux/compiler_attributes.h:291:56: note: expanded from macro '__weak'
   #define __weak                          __attribute__((__weak__))
                                                          ^
   1 error generated.


vim +457 kernel/kallsyms.c

   456	
 > 457	static int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
   458				    char *type, char *name)
   459	{
   460		return -EINVAL;
   461	}
   462	

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

Download attachment ".config.gz" of type "application/gzip" (36292 bytes)

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