ip6gre_dev_free  1395 net/ipv6/ip6_gre.c 	dev->priv_destructor = ip6gre_dev_free;
ip6gre_dev_free  1894 net/ipv6/ip6_gre.c 	dev->priv_destructor = ip6gre_dev_free;
ip6gre_dev_free  2196 net/ipv6/ip6_gre.c 	dev->priv_destructor = ip6gre_dev_free;