tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8d4b477da1a807199ca60e0829357ce7aa6758d5 commit: 04a1758348a87eb73b8a4554d0c227831e2bb33e [4175/4668] net: dsa: tag_sja1105: fix control packets on SJA1110 being received on an imprecise port config: i386-randconfig-m021-20210730 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: net/dsa/tag_sja1105.c:564 sja1110_rcv() error: uninitialized symbol 'vid'. vim +/vid +564 net/dsa/tag_sja1105.c 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 543 static struct sk_buff *sja1110_rcv(struct sk_buff *skb, 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 544 struct net_device *netdev, 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 545 struct packet_type *pt) 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 546 { 0fac6aa098edf9 Vladimir Oltean 2021-07-19 547 int source_port = -1, switch_id = -1; 884be12f85666c Vladimir Oltean 2021-07-26 548 u16 vid; 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 549 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 550 skb->offload_fwd_mark = 1; 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 551 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 552 if (sja1110_skb_has_inband_control_extension(skb)) { 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 553 skb = sja1110_rcv_inband_control_extension(skb, &source_port, 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 554 &switch_id); 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 555 if (!skb) 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 556 return NULL; 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 557 } 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 558 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 559 /* Packets with in-band control extensions might still have RX VLANs */ 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 560 if (likely(sja1105_skb_has_tag_8021q(skb))) 04a1758348a87e Vladimir Oltean 2021-07-29 561 sja1105_vlan_rcv(skb, &source_port, &switch_id, &vid); Not initialized on else path. 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 562 04a1758348a87e Vladimir Oltean 2021-07-29 563 if (source_port == -1 || switch_id == -1) 884be12f85666c Vladimir Oltean 2021-07-26 @564 skb->dev = dsa_find_designated_bridge_port_by_vid(netdev, vid); ^^^ 884be12f85666c Vladimir Oltean 2021-07-26 565 else 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 566 skb->dev = dsa_master_find_slave(netdev, switch_id, source_port); 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 567 if (!skb->dev) { 884be12f85666c Vladimir Oltean 2021-07-26 568 netdev_warn(netdev, "Couldn't decode source port\n"); 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 569 return NULL; 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 570 } 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 571 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 572 return skb; 4913b8ebf8a9c5 Vladimir Oltean 2021-06-11 573 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
