[mark:linkage/alias-rework 3/5] string.c:(.text+0x9b0): multiple definition of `strchr'; arch/arm64/lib/strchr.o:(.text+0x0): first defined here

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git linkage/alias-rework
head:   237447148f41ca99a7b980037060b7a6f3afe535
commit: 5b1a122bc457e6f09d2bf79a8902d859447e105f [3/5] WIP: arm64: remove SYM_FUNC_*_PI()
config: arm64-randconfig-r036-20211203 (https://download.01.org/0day-ci/archive/20211204/202112041951.birTgnqD-lkp@xxxxxxxxx/config)
compiler: aarch64-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://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=5b1a122bc457e6f09d2bf79a8902d859447e105f
        git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
        git fetch --no-tags mark linkage/alias-rework
        git checkout 5b1a122bc457e6f09d2bf79a8902d859447e105f
        # 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=arm64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   aarch64-linux-ld: lib/string.o: in function `strchr':
>> string.c:(.text+0x9b0): multiple definition of `strchr'; arch/arm64/lib/strchr.o:(.text+0x0): first defined here

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