Hi Egil,

Egil Hjelmeland [off-list ref] writes:

But _all_ .port_mdb_add are repeated twice as well. This is more 
interesting. I suspect that there is a missing "return 0;" in 
dsa_switch_mdb_add(), at the end of the "if 
(switchdev_trans_ph_prepare(trans)) {". Dating back to
a1a6b7ea7f2de270a51360cc48e7c49f7a283dda.

Thank for the report! I've sent a fix to -net for MDB and VLAN as well
which has the same issue.

      Vivien