dev_getfirstbyhwtype  930 include/linux/netdevice.h extern struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type);
dev_getfirstbyhwtype  256 net/llc/af_llc.c 	llc->dev = dev_getfirstbyhwtype(&init_net, addr->sllc_arphrd);