From: Andrew Lunn <andrew@lunn.ch> Date: 2017-09-27 18:36:53
Adding the broadcast address to an Ethernet switch's FDB is pretty
generic and mv88e6xxx mustn't be the only driver doing this.
Actually, it is. All the others seem to do this in hardware without
needing an FDB. Since mv88e6xxx is the only one requiring it, it has
to be done in the mv88e6xxx driver.
Andrew