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Date:   Wed, 19 Jan 2022 15:20:25 +0800
From:   kernel test robot <lkp@...el.com>
To:     Matteo Croce <mcroce@...rosoft.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Emil Renner Berthing <kernel@...il.dk>
Subject: [esmil:visionfive 21/80] string.c:(.text+0x1184): multiple
 definition of `memset'; mm/kasan/shadow.o:shadow.c:(.text+0xfc): first
 defined here

tree:   https://github.com/esmil/linux visionfive
head:   e46c3a7e373e6faa03399f1a41c29cf7546c37cb
commit: 55f013c0bc3e224cf34271c3cc11f7443b11553f [21/80] riscv: optimized memset
config: riscv-randconfig-r042-20220119 (https://download.01.org/0day-ci/archive/20220119/202201191551.ZXYUjRiZ-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
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://github.com/esmil/linux/commit/55f013c0bc3e224cf34271c3cc11f7443b11553f
        git remote add esmil https://github.com/esmil/linux
        git fetch --no-tags esmil visionfive
        git checkout 55f013c0bc3e224cf34271c3cc11f7443b11553f
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash

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

All error/warnings (new ones prefixed by >>):

   riscv64-linux-ld: lib/string.o: in function `memset':
>> string.c:(.text+0x1184): multiple definition of `memset'; mm/kasan/shadow.o:shadow.c:(.text+0xfc): first defined here
   riscv64-linux-ld: lib/string.o: in function `memcpy':
   string.c:(.text+0x1414): multiple definition of `memcpy'; mm/kasan/shadow.o:shadow.c:(.text+0x174): first defined here
--
>> mm/kasan/shadow.c:42:7: warning: no previous prototype for 'memset' [-Wmissing-prototypes]
      42 | void *memset(void *addr, int c, size_t len)
         |       ^~~~~~
   mm/kasan/shadow.c:63:7: warning: no previous prototype for 'memcpy' [-Wmissing-prototypes]
      63 | void *memcpy(void *dest, const void *src, size_t len)
         |       ^~~~~~

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

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