Find a device by its hardware address
struct net_device * dev_getbyhwaddr_rcu(struct net * net, unsigned short type, const char * ha);
net
the applicable net namespace
type
media type of device
ha
hardware address
Search for an interface by MAC address. Returns NULL if the device is not found or a pointer to the device. The caller must hold RCU or RTNL. The returned device has not had its ref count increased and the caller must therefore be careful about locking