IP6_GRE_HASH_SIZE 66 net/ipv6/ip6_gre.c struct ip6_tnl __rcu *tunnels[4][IP6_GRE_HASH_SIZE]; IP6_GRE_HASH_SIZE 100 net/ipv6/ip6_gre.c #define HASH_KEY(key) (((__force u32)key^((__force u32)key>>4))&(IP6_GRE_HASH_SIZE - 1)) IP6_GRE_HASH_SIZE 1539 net/ipv6/ip6_gre.c for (h = 0; h < IP6_GRE_HASH_SIZE; h++) {