tree: git://git.infradead.org/users/hch/misc.git set_fs-net-tunnel.2 head: a0235d8add44d23022a18073e3ef61f10c2ec3bd commit: a6e4b2bdb18cbd8dc7c3c5136fefbd807f47dae5 [5/9] sit: refactor ipip6_tunnel_ioctl config: x86_64-defconfig (attached as .config) If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): net/ipv6/sit.c: In function 'ipip6_tunnel_prl_ctl': int err; ^~~ vim +/err +460 net/ipv6/sit.c 454 455 static int ipip6_tunnel_prl_ctl(struct net_device *dev, struct ifreq *ifr, 456 int cmd) 457 { 458 struct ip_tunnel *t = netdev_priv(dev); 459 struct ip_tunnel_prl prl; 461 462 if (!ns_capable(t->net->user_ns, CAP_NET_ADMIN)) 463 return -EPERM; 464 if (dev == dev_to_sit_net(dev)->fb_tunnel_dev) 465 return -EINVAL; 466 467 if (copy_from_user(&prl, ifr->ifr_ifru.ifru_data, sizeof(prl))) 468 return -EFAULT; 469 470 switch (cmd) { 471 case SIOCDELPRL: 472 err = ipip6_tunnel_del_prl(t, &prl); 473 break; 474 case SIOCADDPRL: 475 case SIOCCHGPRL: 476 err = ipip6_tunnel_add_prl(t, &prl, cmd == SIOCCHGPRL); 477 break; 478 } 479 dst_cache_reset(&t->dst_cache); 480 netdev_state_change(dev); 481 return 0; 482 } 483 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org