tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git pending-4.19 head: da0ab6f9b4814a4a16e1999273d7dbd1a348314b commit: 0d2758421c8819aae1c231d905be29419b0da83c [29/61] netfilter: nft_fib: Convert nft_fib4_eval to new dev helper 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 0d2758421c8819aae1c231d905be29419b0da83c # 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/ipv4/netfilter/nft_fib_ipv4.c: In function 'nft_fib4_eval': 147 | if (!fib_info_nh_uses_dev(res.fi, oif)) | ^~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/fib_info_nh_uses_dev +147 net/ipv4/netfilter/nft_fib_ipv4.c 65 66 void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs, 67 const struct nft_pktinfo *pkt) 68 { 69 const struct nft_fib *priv = nft_expr_priv(expr); 70 int noff = skb_network_offset(pkt->skb); 71 u32 *dest = &regs->data[priv->dreg]; 72 struct iphdr *iph, _iph; 73 struct fib_result res; 74 struct flowi4 fl4 = { 75 .flowi4_scope = RT_SCOPE_UNIVERSE, 76 .flowi4_iif = LOOPBACK_IFINDEX, 77 }; 78 const struct net_device *oif; 79 const struct net_device *found; 80 81 /* 82 * Do not set flowi4_oif, it restricts results (for example, asking 83 * for oif 3 will get RTN_UNICAST result even if the daddr exits 84 * on another interface. 85 * 86 * Search results for the desired outinterface instead. 87 */ 88 if (priv->flags & NFTA_FIB_F_OIF) 89 oif = nft_out(pkt); 90 else if (priv->flags & NFTA_FIB_F_IIF) 91 oif = nft_in(pkt); 92 else 93 oif = NULL; 94 95 if (nft_hook(pkt) == NF_INET_PRE_ROUTING && 96 nft_fib_is_loopback(pkt->skb, nft_in(pkt))) { 97 nft_fib_store_result(dest, priv, pkt, 98 nft_in(pkt)->ifindex); 99 return; 100 } 101 102 iph = skb_header_pointer(pkt->skb, noff, sizeof(_iph), &_iph); 103 if (!iph) { 104 regs->verdict.code = NFT_BREAK; 105 return; 106 } 107 108 if (ipv4_is_zeronet(iph->saddr)) { 109 if (ipv4_is_lbcast(iph->daddr) || 110 ipv4_is_local_multicast(iph->daddr)) { 111 nft_fib_store_result(dest, priv, pkt, 112 get_ifindex(pkt->skb->dev)); 113 return; 114 } 115 } 116 117 if (priv->flags & NFTA_FIB_F_MARK) 118 fl4.flowi4_mark = pkt->skb->mark; 119 120 fl4.flowi4_tos = iph->tos & DSCP_BITS; 121 122 if (priv->flags & NFTA_FIB_F_DADDR) { 123 fl4.daddr = iph->daddr; 124 fl4.saddr = get_saddr(iph->saddr); 125 } else { 126 fl4.daddr = iph->saddr; 127 fl4.saddr = get_saddr(iph->daddr); 128 } 129 130 *dest = 0; 131 132 if (fib_lookup(nft_net(pkt), &fl4, &res, FIB_LOOKUP_IGNORE_LINKSTATE)) 133 return; 134 135 switch (res.type) { 136 case RTN_UNICAST: 137 break; 138 case RTN_LOCAL: /* Should not see RTN_LOCAL here */ 139 return; 140 default: 141 break; 142 } 143 144 if (!oif) { 145 found = FIB_RES_DEV(res); 146 } else { 148 return; 149 150 found = oif; 151 } 152 153 switch (priv->result) { 154 case NFT_FIB_RESULT_OIF: 155 *dest = found->ifindex; 156 break; 157 case NFT_FIB_RESULT_OIFNAME: 158 strncpy((char *)dest, found->name, IFNAMSIZ); 159 break; 160 default: 161 WARN_ON_ONCE(1); 162 break; 163 } 164 } 165 EXPORT_SYMBOL_GPL(nft_fib4_eval); 166 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org