ip_check_mc 218 include/linux/igmp.h extern int ip_check_mc(struct in_device *dev, __be32 mc_addr, __be32 src_addr, u16 proto); ip_check_mc 2168 net/ipv4/route.c int our = ip_check_mc(in_dev, daddr, saddr, ip_check_mc 2225 net/ipv4/route.c if (!ip_check_mc(in_dev, oldflp->fl4_dst, oldflp->fl4_src,