Hi Vivien

> diff --git a/drivers/net/dsa/mv88e6xxx/chip.c 
> b/drivers/net/dsa/mv88e6xxx/chip.c
> index 93abfff..812cb47 100644
> --- a/drivers/net/dsa/mv88e6xxx/chip.c
> +++ b/drivers/net/dsa/mv88e6xxx/chip.c
> @@ -2240,6 +2240,15 @@ static int mv88e6xxx_port_db_dump_one(struct 
> mv88e6xxx_chip *chip,
>                               fdb->ndm_state = NUD_NOARP;
>                       else
>                               fdb->ndm_state = NUD_REACHABLE;
> +             } else {

Rather than else, i think it would be safer to do

                if (obj->id == SWITCHDEV_OBJ_ID_PORT_MDB) {
> +                     struct switchdev_obj_port_mdb *mdb;
> +
> +                     if (!is_multicast_ether_addr(addr.mac))
> +                             continue;
> +
> +                     mdb = SWITCHDEV_OBJ_PORT_MDB(obj);
> +                     mdb->vid = vid;
> +                     ether_addr_copy(mdb->addr, addr.mac);
>               }

It should not happen, but the day it does, we get very confused...

> +static int mv88e6xxx_port_mdb_dump(struct dsa_switch *ds, int port,
> +                                struct switchdev_obj_port_mdb *mdb,
> +                                int (*cb)(struct switchdev_obj *obj))
> +{
> +     struct mv88e6xxx_chip *chip = ds_to_priv(ds);
> +     int err;
> +
> +     mutex_lock(&chip->reg_lock);
> +     err = mv88e6xxx_port_db_dump(chip, port, &mdb->obj, cb);
> +     mutex_unlock(&chip->reg_lock);
> +
> +     return err;
> +}

Isn't this identical to mv88e6xxx_port_fdb_dump()? Maybe we should
just have one function, and register it twice?

     Andrew

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