net: prestera: cache port state for non-phylink ports too

Port event data must stored to port-state cache regardless of whether
the port uses phylink or not since this data is used by ethtool.

Fixes: 52323ef7 ("net: marvell: prestera: add phylink support")
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/prestera/prestera_main.c

@@ -797,7 +797,6 @@ static void prestera_port_handle_event(struct prestera_switch *sw,
 
 		caching_dw = &port->cached_hw_stats.caching_dw;
 
-		if (port->phy_link) {
 		memset(&smac, 0, sizeof(smac));
 		smac.valid = true;
 		smac.oper = pevt->data.mac.oper;
@@ -807,22 +806,21 @@ static void prestera_port_handle_event(struct prestera_switch *sw,
 			smac.duplex = pevt->data.mac.duplex;
 			smac.fc = pevt->data.mac.fc;
 			smac.fec = pevt->data.mac.fec;
-				phylink_mac_change(port->phy_link, true);
-			} else {
-				phylink_mac_change(port->phy_link, false);
 		}
 		prestera_port_mac_state_cache_write(port, &smac);
-		}
 
 		if (port->state_mac.oper) {
-			if (!port->phy_link)
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, true);
+			else
 				netif_carrier_on(port->dev);
 
 			if (!delayed_work_pending(caching_dw))
 				queue_delayed_work(prestera_wq, caching_dw, 0);
-		} else if (netif_running(port->dev) &&
-			   netif_carrier_ok(port->dev)) {
-			if (!port->phy_link)
+		} else {
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, false);
+			else if (netif_running(port->dev) && netif_carrier_ok(port->dev))
 				netif_carrier_off(port->dev);
 
 			if (delayed_work_pending(caching_dw))