tree:   https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git xdp-queueing-01
head:   7cdc645073a59261514e56e1a4c6d0dac1b24b32
commit: de44bbfd9cf981baab181c006dc363c5f412d94c [4/9] bpf: Add helpers to dequeue from a PIFO map
config: riscv-buildonly-randconfig-r002-20211111 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 63ef0e17e28827eae53133b3467bdac7d9729318)
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 riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git/commit/?id=de44bbfd9cf981baab181c006dc363c5f412d94c
        git remote add toke https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git
        git fetch --no-tags toke xdp-queueing-01
        git checkout de44bbfd9cf981baab181c006dc363c5f412d94c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang 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 >>):

   net/core/filter.c:3992:10: error: implicit declaration of function 'pifo_map_enqueue' [-Werror,-Wimplicit-function-declaration]
                           err = pifo_map_enqueue(map, xdp, ri->tgt_index);
                                 ^
>> net/core/filter.c:4153:24: error: implicit declaration of function 'pifo_map_dequeue' [-Werror,-Wimplicit-function-declaration]
           return (unsigned long)pifo_map_dequeue(map, flags);
                                 ^
   net/core/filter.c:10088:15: error: use of undeclared identifier 'bpf_prog_test_run_dequeue'
           .test_run               = bpf_prog_test_run_dequeue,
                                     ^
   3 errors generated.


vim +/pifo_map_dequeue +4153 net/core/filter.c

  4149	
  4150	BPF_CALL_3(bpf_packet_dequeue, struct dequeue_data *, ctx, struct bpf_map *, map,
  4151		   u64, flags)
  4152	{
> 4153		return (unsigned long)pifo_map_dequeue(map, flags);
  4154	}
  4155	

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