taglinefilesource code
dev_mc_delete228include/linux/netdevice.hextern void     dev_mc_delete(struct device *dev, void *addr, int alen, int all);
dev_mc_delete1316net/inet/dev.cdev_mc_delete(dev,ifr.ifr_hwaddr.sa_data,dev->addr_len, 1);
dev_mc_delete174net/inet/igmp.cdev_mc_delete(dev,buf,ETH_ALEN,0);