tree: https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next.git testing head: eb5a3496084f9a3ea3fb4c4d22b4c661d46a2743 commit: ecc701a3bd9890f83ea89337c64d4f14aba9f091 [4/5] netfilter: nf_nat: use skb_drop_reason config: arm-aspeed_g4_defconfig (https://download.01.org/0day-ci/archive/20240922/202409221130.jIDto0hf-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 8663a75fa2f31299ab8d1d90288d9df92aadee88) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240922/202409221130.jIDto0hf-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/202409221130.jIDto0hf-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from net/netfilter/nf_nat_masquerade.c:5: In file included from include/linux/inetdevice.h:9: In file included from include/linux/ip.h:16: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:8: In file included from include/linux/cacheflush.h:5: In file included from arch/arm/include/asm/cacheflush.h:10: In file included from include/linux/mm.h:2232: include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> net/netfilter/nf_nat_masquerade.c:273:6: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] 273 | if (ret == NF_DROP) | ^~~ net/netfilter/nf_nat_masquerade.c:253:9: note: initialize the variable 'ret' to silence this warning 253 | int ret; | ^ | = 0 2 warnings generated. vim +/ret +273 net/netfilter/nf_nat_masquerade.c 243 244 unsigned int 245 nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range2 *range, 246 const struct net_device *out) 247 { 248 enum ip_conntrack_info ctinfo; 249 struct nf_conn_nat *nat; 250 struct in6_addr src; 251 struct nf_conn *ct; 252 struct nf_nat_range2 newrange; 253 int ret; 254 255 ct = nf_ct_get(skb, &ctinfo); 256 WARN_ON(!(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED || 257 ctinfo == IP_CT_RELATED_REPLY))); 258 259 if (nat_ipv6_dev_get_saddr(nf_ct_net(ct), out, 260 &ipv6_hdr(skb)->daddr, 0, &src) < 0) 261 return NF_DROP_REASON(skb, SKB_DROP_REASON_NETFILTER_DROP, EADDRNOTAVAIL); 262 263 nat = nf_ct_nat_ext_add(ct); 264 if (nat) 265 nat->masq_index = out->ifindex; 266 267 newrange.flags = range->flags | NF_NAT_RANGE_MAP_IPS; 268 newrange.min_addr.in6 = src; 269 newrange.max_addr.in6 = src; 270 newrange.min_proto = range->min_proto; 271 newrange.max_proto = range->max_proto; 272 > 273 if (ret == NF_DROP) 274 return NF_DROP_REASON(skb, SKB_DROP_REASON_NETFILTER_DROP, EPERM); 275 276 return ret; 277 } 278 EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6); 279 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
