Hi Pablo, kernel test robot noticed the following build errors: [auto build test ERROR on nf/master] url: https://github.com/intel-lab-lkp/linux/commits/Pablo-Neira-Ayuso/netfilter-nf_tables-GC-transaction-race-with-abort-path/20230818-071545 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git master patch link: https://lore.kernel.org/r/20230817231352.8412-1-pablo%40netfilter.org patch subject: [PATCH nf] netfilter: nf_tables: GC transaction race with abort path config: hexagon-randconfig-r045-20230818 (https://download.01.org/0day-ci/archive/20230818/202308181545.lZbeE7Lm-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230818/202308181545.lZbeE7Lm-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308181545.lZbeE7Lm-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> net/netfilter/nf_tables_api.c:9132:11: error: call to undeclared function 'nft_gc_seq_begin'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9132 | gc_seq = nft_gc_seq_begin(nft_net); | ^ >> net/netfilter/nf_tables_api.c:9134:2: error: call to undeclared function 'nft_gc_seq_end'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 9134 | nft_gc_seq_end(nft_net, gc_seq); | ^ 2 errors generated. vim +/nft_gc_seq_begin +9132 net/netfilter/nf_tables_api.c 9124 9125 static int nf_tables_abort(struct net *net, struct sk_buff *skb, 9126 enum nfnl_abort_action action) 9127 { 9128 struct nftables_pernet *nft_net = nft_pernet(net); 9129 unsigned int gc_seq; 9130 int ret; 9131 > 9132 gc_seq = nft_gc_seq_begin(nft_net); 9133 ret = __nf_tables_abort(net, action); > 9134 nft_gc_seq_end(nft_net, gc_seq); 9135 mutex_unlock(&nft_net->commit_mutex); 9136 9137 return ret; 9138 } 9139 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
