static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
{
	memcpy(a1, a2, sizeof(struct in6_addr));
}
static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2)
{
	memcpy(a1, a2, sizeof(struct in6_addr));
}