[linux-next:master 7125/8019] net/netfilter/nfnetlink_hook.c:76:7: error: implicit declaration of function 'nft_is_active'

[kernel test robot <lkp@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   ab5803bc555fe68b9b0d37b9a850d3ec601b938a
commit: e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9 [7125/8019] netfilter: add new hook nfnl subsystem
config: arc-randconfig-r031-20210608 (attached as .config)
compiler: arc-elf-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9
        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 e2cf17d3774c323ef6dab6e9f7c0cfc5e742afd9
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

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

All errors (new ones prefixed by >>):

   net/netfilter/nfnetlink_hook.c: In function 'nfnl_hook_put_nft_chain_info':
>> net/netfilter/nfnetlink_hook.c:76:7: error: implicit declaration of function 'nft_is_active' [-Werror=implicit-function-declaration]
      76 |  if (!nft_is_active(net, chain))
         |       ^~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/nft_is_active +76 net/netfilter/nfnetlink_hook.c

    58	
    59	static int nfnl_hook_put_nft_chain_info(struct sk_buff *nlskb,
    60						const struct nfnl_dump_hook_data *ctx,
    61						unsigned int seq,
    62						const struct nf_hook_ops *ops)
    63	{
    64		struct net *net = sock_net(nlskb->sk);
    65		struct nlattr *nest, *nest2;
    66		struct nft_chain *chain;
    67		int ret = 0;
    68	
    69		if (ops->hook_ops_type != NF_HOOK_OP_NF_TABLES)
    70			return 0;
    71	
    72		chain = ops->priv;
    73		if (WARN_ON_ONCE(!chain))
    74			return 0;
    75	
  > 76		if (!nft_is_active(net, chain))
    77			return 0;
    78	
    79		nest = nla_nest_start(nlskb, NFNLA_HOOK_CHAIN_INFO);
    80		if (!nest)
    81			return -EMSGSIZE;
    82	
    83		ret = nla_put_be32(nlskb, NFNLA_HOOK_INFO_TYPE,
    84				   htonl(NFNL_HOOK_TYPE_NFTABLES));
    85		if (ret)
    86			goto cancel_nest;
    87	
    88		nest2 = nla_nest_start(nlskb, NFNLA_HOOK_INFO_DESC);
    89		if (!nest2)
    90			goto cancel_nest;
    91	
    92		ret = nla_put_string(nlskb, NFTA_CHAIN_TABLE, chain->table->name);
    93		if (ret)
    94			goto cancel_nest;
    95	
    96		ret = nla_put_string(nlskb, NFTA_CHAIN_NAME, chain->name);
    97		if (ret)
    98			goto cancel_nest;
    99	
   100		nla_nest_end(nlskb, nest2);
   101		nla_nest_end(nlskb, nest);
   102		return ret;
   103	
   104	cancel_nest:
   105		nla_nest_cancel(nlskb, nest);
   106		return -EMSGSIZE;
   107	}
   108	

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

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