}
 
 static int lan9303_port_mdb_prepare(struct dsa_switch *ds, int port,
-                                   const struct switchdev_obj_port_mdb *mdb,
-                                   struct switchdev_trans *trans)
+                                   const struct switchdev_obj_port_mdb *mdb)
 {
        struct lan9303 *chip = ds->priv;
 
 }
 
 static void lan9303_port_mdb_add(struct dsa_switch *ds, int port,
-                                const struct switchdev_obj_port_mdb *mdb,
-                                struct switchdev_trans *trans)
+                                const struct switchdev_obj_port_mdb *mdb)
 {
        struct lan9303 *chip = ds->priv;
 
 
 }
 
 static int ksz_port_mdb_prepare(struct dsa_switch *ds, int port,
-                               const struct switchdev_obj_port_mdb *mdb,
-                               struct switchdev_trans *trans)
+                               const struct switchdev_obj_port_mdb *mdb)
 {
        /* nothing to do */
        return 0;
 }
 
 static void ksz_port_mdb_add(struct dsa_switch *ds, int port,
-                            const struct switchdev_obj_port_mdb *mdb,
-                            struct switchdev_trans *trans)
+                            const struct switchdev_obj_port_mdb *mdb)
 {
        struct ksz_device *dev = ds->priv;
        u32 static_table[4];
 
 }
 
 static int mv88e6xxx_port_mdb_prepare(struct dsa_switch *ds, int port,
-                                     const struct switchdev_obj_port_mdb *mdb,
-                                     struct switchdev_trans *trans)
+                                     const struct switchdev_obj_port_mdb *mdb)
 {
        /* We don't need any dynamic resource from the kernel (yet),
         * so skip the prepare phase.
 }
 
 static void mv88e6xxx_port_mdb_add(struct dsa_switch *ds, int port,
-                                  const struct switchdev_obj_port_mdb *mdb,
-                                  struct switchdev_trans *trans)
+                                  const struct switchdev_obj_port_mdb *mdb)
 {
        struct mv88e6xxx_chip *chip = ds->priv;
 
 
        /*
         * Multicast database
         */
-       int     (*port_mdb_prepare)(struct dsa_switch *ds, int port,
-                                   const struct switchdev_obj_port_mdb *mdb,
-                                   struct switchdev_trans *trans);
-       void    (*port_mdb_add)(struct dsa_switch *ds, int port,
-                               const struct switchdev_obj_port_mdb *mdb,
-                               struct switchdev_trans *trans);
+       int (*port_mdb_prepare)(struct dsa_switch *ds, int port,
+                               const struct switchdev_obj_port_mdb *mdb);
+       void (*port_mdb_add)(struct dsa_switch *ds, int port,
+                            const struct switchdev_obj_port_mdb *mdb);
        int     (*port_mdb_del)(struct dsa_switch *ds, int port,
                                const struct switchdev_obj_port_mdb *mdb);
        /*
 
                        return -EOPNOTSUPP;
 
                for_each_set_bit(port, group, ds->num_ports) {
-                       err = ds->ops->port_mdb_prepare(ds, port, mdb, trans);
+                       err = ds->ops->port_mdb_prepare(ds, port, mdb);
                        if (err)
                                return err;
                }
        }
 
        for_each_set_bit(port, group, ds->num_ports)
-               ds->ops->port_mdb_add(ds, port, mdb, trans);
+               ds->ops->port_mdb_add(ds, port, mdb);
 
        return 0;
 }