net: dsa: Add a ports structure and use it in the switch structure

There are going to be more per-port members added to the switch
structure. So add a port structure and move the netdev into it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index eff5dfc..18086e0 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -437,10 +437,10 @@
 		if (!(ds->enabled_port_mask & (1 << port)))
 			continue;
 
-		if (!ds->ports[port])
+		if (!ds->ports[port].netdev)
 			continue;
 
-		dsa_slave_destroy(ds->ports[port]);
+		dsa_slave_destroy(ds->ports[port].netdev);
 	}
 
 	/* Remove any fixed link PHYs */
@@ -469,7 +469,7 @@
 		if (!dsa_is_port_initialized(ds, i))
 			continue;
 
-		ret = dsa_slave_suspend(ds->ports[i]);
+		ret = dsa_slave_suspend(ds->ports[i].netdev);
 		if (ret)
 			return ret;
 	}
@@ -495,7 +495,7 @@
 		if (!dsa_is_port_initialized(ds, i))
 			continue;
 
-		ret = dsa_slave_resume(ds->ports[i]);
+		ret = dsa_slave_resume(ds->ports[i].netdev);
 		if (ret)
 			return ret;
 	}