[linux-next:master 652/2855] net/netfilter/nf_conntrack_bpf.c:251:5: warning: no previous prototype for 'register_nf_conntrack_bpf'

[linux-next:master 652/2855] net/netfilter/nf_conntrack_bpf.c:251:5: warning: no previous prototype for 'register_nf_conntrack_bpf'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   b605fdc54c2b28c30ef06d9db99282d8a32ae4be
commit: b4c2b9593a1c4c3a718370e34af28e817fd5e5c6 [652/2855] net/netfilter: Add unstable CT lookup helpers for XDP and TC-BPF
config: i386-debian-10.3-kselftests (https://download.01.org/0day-ci/archive/20220129/202201291226.CNe1hZ5R-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=b4c2b9593a1c4c3a718370e34af28e817fd5e5c6
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout b4c2b9593a1c4c3a718370e34af28e817fd5e5c6
        # 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 warnings (new ones prefixed by >>):

>> net/netfilter/nf_conntrack_bpf.c:251:5: warning: no previous prototype for 'register_nf_conntrack_bpf' [-Wmissing-prototypes]
     251 | int register_nf_conntrack_bpf(void)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +/register_nf_conntrack_bpf +251 net/netfilter/nf_conntrack_bpf.c

   250	
 > 251	int register_nf_conntrack_bpf(void)

---
0-DAY CI Kernel Test Service, Intel Corporation
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