Hi Eric, [auto build test ERROR on net-next/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/net-make-skb_set_owner_w-more-robust/20151102-070107 config: x86_64-randconfig-x019-201544 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): net/core/sock.c: In function 'skb_set_owner_w': >> net/core/sock.c:1664:21: error: 'sock_edemux' undeclared (first use in this function) skb->destructor = sock_edemux; ^ net/core/sock.c:1664:21: note: each undeclared identifier is reported only once for each function it appears in vim +/sock_edemux +1664 net/core/sock.c 1658 1659 void skb_set_owner_w(struct sk_buff *skb, struct sock *sk) 1660 { 1661 skb_orphan(skb); 1662 skb->sk = sk; 1663 if (unlikely(!sk_fullsock(sk))) { > 1664 skb->destructor = sock_edemux; 1665 sock_hold(sk); 1666 return; 1667 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation