net: dsa: Relocate master ethtool operations

Relocate master_ethtool_ops and master_orig_ethtool_ops into struct
dsa_port in order to be both consistent, and make things self contained
within the dsa_port structure.

This is a preliminary change to supporting multiple CPU port interfaces.

Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 6aacc23..416ac4e 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -118,15 +118,16 @@ int dsa_cpu_port_ethtool_setup(struct dsa_port *cpu_dp)
 	struct net_device *master;
 	struct ethtool_ops *cpu_ops;
 
-	master = ds->dst->cpu_dp->netdev;
+	master = cpu_dp->netdev;
+
 	cpu_ops = devm_kzalloc(ds->dev, sizeof(*cpu_ops), GFP_KERNEL);
 	if (!cpu_ops)
 		return -ENOMEM;
 
-	memcpy(&ds->dst->master_ethtool_ops, master->ethtool_ops,
+	memcpy(&cpu_dp->ethtool_ops, master->ethtool_ops,
 	       sizeof(struct ethtool_ops));
-	ds->dst->master_orig_ethtool_ops = master->ethtool_ops;
-	memcpy(cpu_ops, &ds->dst->master_ethtool_ops,
+	cpu_dp->orig_ethtool_ops = master->ethtool_ops;
+	memcpy(cpu_ops, &cpu_dp->ethtool_ops,
 	       sizeof(struct ethtool_ops));
 	dsa_cpu_port_ethtool_init(cpu_ops);
 	master->ethtool_ops = cpu_ops;
@@ -136,12 +137,7 @@ int dsa_cpu_port_ethtool_setup(struct dsa_port *cpu_dp)
 
 void dsa_cpu_port_ethtool_restore(struct dsa_port *cpu_dp)
 {
-	struct dsa_switch *ds = cpu_dp->ds;
-	struct net_device *master;
-
-	master = ds->dst->cpu_dp->netdev;
-
-	master->ethtool_ops = ds->dst->master_orig_ethtool_ops;
+	cpu_dp->netdev->ethtool_ops = cpu_dp->orig_ethtool_ops;
 }
 
 void dsa_cpu_dsa_destroy(struct dsa_port *port)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 658bc67..9bf4c27 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -524,10 +524,10 @@ static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev,
 	s8 cpu_port = dst->cpu_dp->index;
 	int count = 0;
 
-	if (dst->master_ethtool_ops.get_sset_count) {
-		count = dst->master_ethtool_ops.get_sset_count(dev,
+	if (dst->cpu_dp->ethtool_ops.get_sset_count) {
+		count = dst->cpu_dp->ethtool_ops.get_sset_count(dev,
 							       ETH_SS_STATS);
-		dst->master_ethtool_ops.get_ethtool_stats(dev, stats, data);
+		dst->cpu_dp->ethtool_ops.get_ethtool_stats(dev, stats, data);
 	}
 
 	if (ds->ops->get_ethtool_stats)
@@ -540,8 +540,8 @@ static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset)
 	struct dsa_switch *ds = dst->cpu_dp->ds;
 	int count = 0;
 
-	if (dst->master_ethtool_ops.get_sset_count)
-		count += dst->master_ethtool_ops.get_sset_count(dev, sset);
+	if (dst->cpu_dp->ethtool_ops.get_sset_count)
+		count += dst->cpu_dp->ethtool_ops.get_sset_count(dev, sset);
 
 	if (sset == ETH_SS_STATS && ds->ops->get_sset_count)
 		count += ds->ops->get_sset_count(ds);
@@ -565,10 +565,10 @@ static void dsa_cpu_port_get_strings(struct net_device *dev,
 	/* We do not want to be NULL-terminated, since this is a prefix */
 	pfx[sizeof(pfx) - 1] = '_';
 
-	if (dst->master_ethtool_ops.get_sset_count) {
-		mcount = dst->master_ethtool_ops.get_sset_count(dev,
+	if (dst->cpu_dp->ethtool_ops.get_sset_count) {
+		mcount = dst->cpu_dp->ethtool_ops.get_sset_count(dev,
 								ETH_SS_STATS);
-		dst->master_ethtool_ops.get_strings(dev, stringset, data);
+		dst->cpu_dp->ethtool_ops.get_strings(dev, stringset, data);
 	}
 
 	if (stringset == ETH_SS_STATS && ds->ops->get_strings) {