[intel-lts:5.15/linux 2474/2488] netlink.c:287:8: error: implicit declaration of function 'bpf_netlink_recv'; did you mean 'libbpf_netlink_recv'?

[intel-lts:5.15/linux 2474/2488] netlink.c:287:8: error: implicit declaration of function 'bpf_netlink_recv'; did you mean 'libbpf_netlink_recv'?

[kernel test robot]

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tree:   https://github.com/intel/linux-intel-lts.git 5.15/linux
head:   91b52769309e2c4d3d4230266426b5eb65418bef
commit: 4655352ad3003f2658836a0f7db7553334f68dda [2474/2488] tools/bpf: Add xdp set command for md btf
config: i386-randconfig-m021 (https://download.01.org/0day-ci/archive/20220211/202202111907.kbWrRF2Y-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel/linux-intel-lts/commit/4655352ad3003f2658836a0f7db7553334f68dda
        git remote add intel-lts https://github.com/intel/linux-intel-lts.git
        git fetch --no-tags intel-lts 5.15/linux
        git checkout 4655352ad3003f2658836a0f7db7553334f68dda
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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 >>):

   netlink.c: In function 'bpf_set_link_xdp_md_btf':
>> netlink.c:287:8: error: implicit declaration of function 'bpf_netlink_recv'; did you mean 'libbpf_netlink_recv'? [-Werror=implicit-function-declaration]
     287 |  ret = bpf_netlink_recv(sock, nl_pid, seq, NULL, NULL, NULL);
         |        ^~~~~~~~~~~~~~~~
         |        libbpf_netlink_recv
>> netlink.c:287:8: error: nested extern declaration of 'bpf_netlink_recv' [-Werror=nested-externs]
   cc1: all warnings being treated as errors
   make[6]: *** [tools/build/Makefile.build:96: kernel/bpf/preload/staticobjs/netlink.o] Error 1
   make[6]: Target '__build' not remade because of errors.

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0-DAY CI Kernel Test Service, Intel Corporation
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