tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git pending-4.19 head: da0ab6f9b4814a4a16e1999273d7dbd1a348314b commit: ee315934ec9b10a653ca97ca4669ef2ed5a15006 [31/61] netfilter: nft_fib_ipv6: skip ipv6 packets from any to link-local config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable pending-4.19 git checkout ee315934ec9b10a653ca97ca4669ef2ed5a15006 # save the attached .config to linux build tree make W=1 ARCH=i386 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/ipv6/netfilter/nft_fib_ipv6.c: In function 'nft_fib6_eval': 187 | nft_hook(pkt) == NF_INET_INGRESS) { | ^~~~~~~~~~~~~~~ | NF_NETDEV_INGRESS net/ipv6/netfilter/nft_fib_ipv6.c:187:23: note: each undeclared identifier is reported only once for each function it appears in vim +187 net/ipv6/netfilter/nft_fib_ipv6.c 157 158 void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs, 159 const struct nft_pktinfo *pkt) 160 { 161 const struct nft_fib *priv = nft_expr_priv(expr); 162 int noff = skb_network_offset(pkt->skb); 163 const struct net_device *oif = NULL; 164 u32 *dest = &regs->data[priv->dreg]; 165 struct ipv6hdr *iph, _iph; 166 struct flowi6 fl6 = { 167 .flowi6_iif = LOOPBACK_IFINDEX, 168 .flowi6_proto = pkt->tprot, 169 }; 170 struct rt6_info *rt; 171 int lookup_flags; 172 173 if (priv->flags & NFTA_FIB_F_IIF) 174 oif = nft_in(pkt); 175 else if (priv->flags & NFTA_FIB_F_OIF) 176 oif = nft_out(pkt); 177 178 iph = skb_header_pointer(pkt->skb, noff, sizeof(_iph), &_iph); 179 if (!iph) { 180 regs->verdict.code = NFT_BREAK; 181 return; 182 } 183 184 lookup_flags = nft_fib6_flowi_init(&fl6, priv, pkt, oif, iph); 185 186 if (nft_hook(pkt) == NF_INET_PRE_ROUTING || 188 if (nft_fib_is_loopback(pkt->skb, nft_in(pkt)) || 189 nft_fib_v6_skip_icmpv6(pkt->skb, pkt->tprot, iph)) { 190 nft_fib_store_result(dest, priv, nft_in(pkt)); 191 return; 192 } 193 } 194 195 *dest = 0; 196 rt = (void *)ip6_route_lookup(nft_net(pkt), &fl6, pkt->skb, 197 lookup_flags); 198 if (rt->dst.error) 199 goto put_rt_err; 200 201 /* Should not see RTF_LOCAL here */ 202 if (rt->rt6i_flags & (RTF_REJECT | RTF_ANYCAST | RTF_LOCAL)) 203 goto put_rt_err; 204 205 if (oif && oif != rt->rt6i_idev->dev) 206 goto put_rt_err; 207 208 nft_fib_store_result(dest, priv, rt->rt6i_idev->dev); 209 put_rt_err: 210 ip6_rt_put(rt); 211 } 212 EXPORT_SYMBOL_GPL(nft_fib6_eval); 213 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org