udp_ehash_secret 400 net/ipv4/udp.c static u32 udp_ehash_secret __read_mostly; udp_ehash_secret 402 net/ipv4/udp.c net_get_random_once(&udp_ehash_secret, sizeof(udp_ehash_secret)); udp_ehash_secret 405 net/ipv4/udp.c udp_ehash_secret + net_hash_mix(net));