ipv6_mc_down      227 include/net/addrconf.h void ipv6_mc_down(struct inet6_dev *idev);
ipv6_mc_down     3854 net/ipv6/addrconf.c 		ipv6_mc_down(idev);
ipv6_mc_down     2603 net/ipv6/mcast.c 	ipv6_mc_down(idev);