net: dsa: b53: Use vlan_filtering property from dsa_switch

While possible (and safe) to use the newly introduced
dsa_port_is_vlan_filtering helper, fabricating a dsa_port pointer is a
bit awkward, so simply retrieve this from the dsa_switch structure.

Signed-off-by: Vladimir Oltean <[e-mail]>
Reviewed-by: Andrew Lunn <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/dsa/b53/b53_common.c

···
 	b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
 
 	dev->vlan_enabled = enable;
-	dev->vlan_filtering_enabled = enable_filtering;
 }
 
 static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100)
···
 		b53_do_vlan_op(dev, VTA_CMD_CLEAR);
 	}
 
-	b53_enable_vlan(dev, false, dev->vlan_filtering_enabled);
+	b53_enable_vlan(dev, false, ds->vlan_filtering);
 
 	b53_for_each_port(dev, i)
 		b53_write16(dev, B53_VLAN_PAGE,
···
 	if (vlan->vid_end > dev->num_vlans)
 		return -ERANGE;
 
-	b53_enable_vlan(dev, true, dev->vlan_filtering_enabled);
+	b53_enable_vlan(dev, true, ds->vlan_filtering);
 
 	return 0;
 }

drivers/net/dsa/b53/b53_priv.h

···
 	unsigned int num_vlans;
 	struct b53_vlan *vlans;
 	bool vlan_enabled;
-	bool vlan_filtering_enabled;
 	unsigned int num_ports;
 	struct b53_port *ports;
 };