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: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240922/202409220325.Fe1kvl39-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240922/202409220325.Fe1kvl39-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/202409220325.Fe1kvl39-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): net/netfilter/nf_nat_masquerade.c: In function 'nf_nat_masquerade_ipv6': >> net/netfilter/nf_nat_masquerade.c:252:30: warning: variable 'newrange' set but not used [-Wunused-but-set-variable] 252 | struct nf_nat_range2 newrange; | ^~~~~~~~ vim +/newrange +252 net/netfilter/nf_nat_masquerade.c d1aca8ab3104aa Florian Westphal 2019-02-19 243 d1aca8ab3104aa Florian Westphal 2019-02-19 244 unsigned int d1aca8ab3104aa Florian Westphal 2019-02-19 245 nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range2 *range, d1aca8ab3104aa Florian Westphal 2019-02-19 246 const struct net_device *out) d1aca8ab3104aa Florian Westphal 2019-02-19 247 { d1aca8ab3104aa Florian Westphal 2019-02-19 248 enum ip_conntrack_info ctinfo; d1aca8ab3104aa Florian Westphal 2019-02-19 249 struct nf_conn_nat *nat; d1aca8ab3104aa Florian Westphal 2019-02-19 250 struct in6_addr src; d1aca8ab3104aa Florian Westphal 2019-02-19 251 struct nf_conn *ct; d1aca8ab3104aa Florian Westphal 2019-02-19 @252 struct nf_nat_range2 newrange; ecc701a3bd9890 Florian Westphal 2023-05-14 253 int ret; d1aca8ab3104aa Florian Westphal 2019-02-19 254 d1aca8ab3104aa Florian Westphal 2019-02-19 255 ct = nf_ct_get(skb, &ctinfo); d1aca8ab3104aa Florian Westphal 2019-02-19 256 WARN_ON(!(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED || d1aca8ab3104aa Florian Westphal 2019-02-19 257 ctinfo == IP_CT_RELATED_REPLY))); d1aca8ab3104aa Florian Westphal 2019-02-19 258 d1aca8ab3104aa Florian Westphal 2019-02-19 259 if (nat_ipv6_dev_get_saddr(nf_ct_net(ct), out, d1aca8ab3104aa Florian Westphal 2019-02-19 260 &ipv6_hdr(skb)->daddr, 0, &src) < 0) ecc701a3bd9890 Florian Westphal 2023-05-14 261 return NF_DROP_REASON(skb, SKB_DROP_REASON_NETFILTER_DROP, EADDRNOTAVAIL); d1aca8ab3104aa Florian Westphal 2019-02-19 262 d1aca8ab3104aa Florian Westphal 2019-02-19 263 nat = nf_ct_nat_ext_add(ct); d1aca8ab3104aa Florian Westphal 2019-02-19 264 if (nat) d1aca8ab3104aa Florian Westphal 2019-02-19 265 nat->masq_index = out->ifindex; d1aca8ab3104aa Florian Westphal 2019-02-19 266 d1aca8ab3104aa Florian Westphal 2019-02-19 267 newrange.flags = range->flags | NF_NAT_RANGE_MAP_IPS; d1aca8ab3104aa Florian Westphal 2019-02-19 268 newrange.min_addr.in6 = src; d1aca8ab3104aa Florian Westphal 2019-02-19 269 newrange.max_addr.in6 = src; d1aca8ab3104aa Florian Westphal 2019-02-19 270 newrange.min_proto = range->min_proto; d1aca8ab3104aa Florian Westphal 2019-02-19 271 newrange.max_proto = range->max_proto; d1aca8ab3104aa Florian Westphal 2019-02-19 272 ecc701a3bd9890 Florian Westphal 2023-05-14 273 if (ret == NF_DROP) ecc701a3bd9890 Florian Westphal 2023-05-14 274 return NF_DROP_REASON(skb, SKB_DROP_REASON_NETFILTER_DROP, EPERM); ecc701a3bd9890 Florian Westphal 2023-05-14 275 ecc701a3bd9890 Florian Westphal 2023-05-14 276 return ret; d1aca8ab3104aa Florian Westphal 2019-02-19 277 } d1aca8ab3104aa Florian Westphal 2019-02-19 278 EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6); d1aca8ab3104aa Florian Westphal 2019-02-19 279 :::::: The code at line 252 was first introduced by commit :::::: d1aca8ab3104aa7131f5ab144c6f586b54df084b netfilter: nat: merge ipv4 and ipv6 masquerade functionality :::::: TO: Florian Westphal <fw@xxxxxxxxx> :::::: CC: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
