On Sat, Apr 03, 2021 at 05:22:24PM +0200, Oleksij Rempel wrote: > Off-topic question, this patch set stops to work after rebasing against > latest netdev. I get following warning: > ip l s lan0 master test > RTNETLINK answers: Invalid argumen > > Are there some API changes? Yes, it's likely that you are returning -EINVAL to some of the functions with which DSA calls you at .port_bridge_join time, see dsa_port_switchdev_sync.