NLMSG_NOOP        433 net/ipv4/netfilter/ip_queue.c 	if (type < NLMSG_NOOP || type >= IPQM_MAX)
NLMSG_NOOP        436 net/ipv6/netfilter/ip6_queue.c 	if (type < NLMSG_NOOP || type >= IPQM_MAX)