[congwang:sockmap3 1/10] syscall.c:undefined reference to `bpf_fd_reuseport_array_update_elem'

[kernel test robot <lkp@intel.com>]

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tree:   https://github.com/congwang/linux.git sockmap3
head:   e5d5ad90185716657e7f42a34f50a192c9a1f265
commit: d7a8a50ed800a43ecd8eed96293aa5015f9fd7be [1/10] sock_map: extend support beyond INET
config: riscv-randconfig-r034-20210421 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
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/congwang/linux/commit/d7a8a50ed800a43ecd8eed96293aa5015f9fd7be
        git remote add congwang https://github.com/congwang/linux.git
        git fetch --no-tags congwang sockmap3
        git checkout d7a8a50ed800a43ecd8eed96293aa5015f9fd7be
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=riscv 

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

All errors (new ones prefixed by >>):

   riscv64-linux-ld: kernel/bpf/syscall.o: in function `.L222':
>> syscall.c:(.text+0xb8a): undefined reference to `bpf_fd_reuseport_array_update_elem'
   riscv64-linux-ld: kernel/bpf/syscall.o: in function `bpf_map_do_batch':
>> syscall.c:(.text+0x2192): undefined reference to `bpf_fd_reuseport_array_lookup_elem'
   riscv64-linux-ld: net/core/sock_reuseport.o: in function `.L0 ':
>> sock_reuseport.c:(.text+0x444): undefined reference to `bpf_sk_reuseport_detach'

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

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