ipv6_sock_mc_join_ssm 1160 include/net/ipv6.h int ipv6_sock_mc_join_ssm(struct sock *sk, int ifindex, ipv6_sock_mc_join_ssm 742 net/ipv6/ipv6_sockglue.c retv = ipv6_sock_mc_join_ssm(sk, greqs.gsr_interface,