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/commi... 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(a)intel.com&gt; All errors (new ones prefixed by >>): net/netfilter/nfnetlink_hook.c: In function 'nfnl_hook_put_nft_chain_info': 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 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@lists.01.org