[avpatel:alexghiti_test 70/78] string.c:(.text+0x12dc): multiple definition of `memcpy'; mm/kasan/shadow.o:shadow.c:(.text+0x18e): first defined here

[avpatel:alexghiti_test 70/78] string.c:(.text+0x12dc): multiple definition of `memcpy'; mm/kasan/shadow.o:shadow.c:(.text+0x18e): first defined here

[kernel test robot]

tree:   https://github.com/avpatel/linux.git alexghiti_test
head:   93aaa7cba9ba7ae91a47812465117e2f9b9e3712
commit: 2502ee1fcf82360af802cc79074238ebd4b7b5a7 [70/78] riscv: optimized memcpy
config: riscv-randconfig-r042-20230322 (https://download.01.org/0day-ci/archive/20230324/202303241211.mkSRftmo-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.1.0
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/avpatel/linux/commit/2502ee1fcf82360af802cc79074238ebd4b7b5a7
        git remote add avpatel https://github.com/avpatel/linux.git
        git fetch --no-tags avpatel alexghiti_test
        git checkout 2502ee1fcf82360af802cc79074238ebd4b7b5a7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303241211.mkSRftmo-lkp@intel.com/

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

   riscv64-linux-ld: lib/string.o: in function `memcpy':
>> string.c:(.text+0x12dc): multiple definition of `memcpy'; mm/kasan/shadow.o:shadow.c:(.text+0x18e): first defined here
--
>> drivers/firmware/efi/libstub/intrinsics.c:18:7: warning: no previous prototype for 'memcpy' [-Wmissing-prototypes]
      18 | void *memcpy(void *dst, const void *src, size_t len)
         |       ^~~~~~
--
>> mm/kasan/shadow.c:72:7: warning: no previous prototype for 'memcpy' [-Wmissing-prototypes]
      72 | void *memcpy(void *dest, const void *src, size_t len)
         |       ^~~~~~

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests