Hi Florian, kernel test robot noticed the following build warnings: [auto build test WARNING on netfilter-nf/main] [also build test WARNING on linus/master v6.17-rc1 next-20250814] [cannot apply to nf-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Florian-Westphal/netfilter-ctnetlink-remove-refcounting-in-dying-list-dumping/20250815-003116 base: https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main patch link: https://lore.kernel.org/r/20250814162307.26029-1-fw%40strlen.de patch subject: [PATCH nf-next] netfilter: ctnetlink: remove refcounting in dying list dumping config: hexagon-randconfig-001-20250815 (https://download.01.org/0day-ci/archive/20250815/202508151104.eDVcRAdD-lkp@xxxxxxxxx/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 3769ce013be2879bf0b329c14a16f5cb766f26ce) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250815/202508151104.eDVcRAdD-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/202508151104.eDVcRAdD-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> net/netfilter/nf_conntrack_netlink.c:1785:16: warning: unused variable 'last_id' [-Wunused-variable] 1785 | unsigned long last_id = ctx->last_id; | ^~~~~~~ 1 warning generated. vim +/last_id +1785 net/netfilter/nf_conntrack_netlink.c 1780 1781 static int 1782 ctnetlink_dump_dying(struct sk_buff *skb, struct netlink_callback *cb) 1783 { 1784 struct ctnetlink_list_dump_ctx *ctx = (void *)cb->ctx; > 1785 unsigned long last_id = ctx->last_id; 1786 #ifdef CONFIG_NF_CONNTRACK_EVENTS 1787 const struct net *net = sock_net(skb->sk); 1788 struct nf_conntrack_net_ecache *ecache_net; 1789 struct nf_conntrack_tuple_hash *h; 1790 struct hlist_nulls_node *n; 1791 #endif 1792 1793 if (ctx->done) 1794 return 0; 1795 1796 ctx->last_id = 0; 1797 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
