net: dsa: store CPU port pointer in the tree

A dsa_switch_tree instance holds a dsa_switch pointer and a port index
to identify the switch port to which the CPU is attached.

Now that the DSA layer has a dsa_port structure to hold this data, use
it to point the switch CPU port.

This patch simply substitutes s/dst->cpu_switch/dst->cpu_dp->ds/ and
s/dst->cpu_port/dst->cpu_dp->index/.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index fa0eece2..658a12c 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1344,7 +1344,7 @@ EXPORT_SYMBOL(b53_fdb_dump);
 int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
 {
 	struct b53_device *dev = ds->priv;
-	s8 cpu_port = ds->dst->cpu_port;
+	s8 cpu_port = ds->dst->cpu_dp->index;
 	u16 pvlan, reg;
 	unsigned int i;
 
@@ -1390,7 +1390,7 @@ void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
 {
 	struct b53_device *dev = ds->priv;
 	struct b53_vlan *vl = &dev->vlans[0];
-	s8 cpu_port = ds->dst->cpu_port;
+	s8 cpu_port = ds->dst->cpu_dp->index;
 	unsigned int i;
 	u16 pvlan, reg, pvid;
 
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 2be9632..215d41c 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -228,7 +228,7 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
 			      struct phy_device *phy)
 {
 	struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
-	s8 cpu_port = ds->dst[ds->index].cpu_port;
+	s8 cpu_port = ds->dst->cpu_dp->index;
 	unsigned int i;
 	u32 reg;
 
@@ -832,7 +832,7 @@ static int bcm_sf2_sw_set_wol(struct dsa_switch *ds, int port,
 {
 	struct net_device *p = ds->dst[ds->index].master_netdev;
 	struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
-	s8 cpu_port = ds->dst[ds->index].cpu_port;
+	s8 cpu_port = ds->dst->cpu_dp->index;
 	struct ethtool_wolinfo pwol;
 
 	p->ethtool_ops->get_wol(p, &pwol);
diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
index 5934b7a..dce7fa5 100644
--- a/drivers/net/dsa/mv88e6060.c
+++ b/drivers/net/dsa/mv88e6060.c
@@ -176,7 +176,7 @@ static int mv88e6060_setup_port(struct dsa_switch *ds, int p)
 		  ((p & 0xf) << PORT_VLAN_MAP_DBNUM_SHIFT) |
 		   (dsa_is_cpu_port(ds, p) ?
 			ds->enabled_port_mask :
-			BIT(ds->dst->cpu_port)));
+			BIT(ds->dst->cpu_dp->index)));
 
 	/* Port Association Vector: when learning source addresses
 	 * of packets, add the address to the address database using
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index a4fd4cc..942b9ac7 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -507,7 +507,7 @@ qca8k_setup(struct dsa_switch *ds)
 		pr_warn("regmap initialization failed");
 
 	/* Initialize CPU port pad mode (xMII type, delays...) */
-	phy_mode = of_get_phy_mode(ds->ports[ds->dst->cpu_port].dn);
+	phy_mode = of_get_phy_mode(ds->dst->cpu_dp->dn);
 	if (phy_mode < 0) {
 		pr_err("Can't find phy-mode for master device\n");
 		return phy_mode;