net: dsa: microchip: move port memory allocation to ksz_common

ksz8795 and ksz9477 init function initializes the memory to dev->ports,
mib counters and assigns the ds real number of ports. Since both the
routines are same, moved the allocation of port memory to
ksz_switch_register after init.
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/microchip/ksz8795.c

@@ -1494,7 +1494,6 @@ static int ksz8_switch_detect(struct ksz_device *dev)
 static int ksz8_switch_init(struct ksz_device *dev)
 {
 	struct ksz8 *ksz8 = dev->priv;
-	int i;
 
 	dev->ds->ops = &ksz8_switch_ops;
 
@@ -1513,25 +1512,6 @@ static int ksz8_switch_init(struct ksz_device *dev)
 		ksz8->shifts = ksz8795_shifts;
 	}
 
-	dev->ports = devm_kzalloc(dev->dev,
-				  dev->info->port_cnt * sizeof(struct ksz_port),
-				  GFP_KERNEL);
-	if (!dev->ports)
-		return -ENOMEM;
-	for (i = 0; i < dev->info->port_cnt; i++) {
-		mutex_init(&dev->ports[i].mib.cnt_mutex);
-		dev->ports[i].mib.counters =
-			devm_kzalloc(dev->dev,
-				     sizeof(u64) *
-				     (dev->info->mib_cnt + 1),
-				     GFP_KERNEL);
-		if (!dev->ports[i].mib.counters)
-			return -ENOMEM;
-	}
-
-	/* set the real number of ports */
-	dev->ds->num_ports = dev->info->port_cnt;
-
 	/* We rely on software untagging on the CPU port, so that we
 	 * can support both tagged and untagged VLANs
 	 */

drivers/net/dsa/microchip/ksz9477.c

@@ -1432,32 +1432,10 @@ static int ksz9477_switch_detect(struct ksz_device *dev)
 
 static int ksz9477_switch_init(struct ksz_device *dev)
 {
-	int i;
-
 	dev->ds->ops = &ksz9477_switch_ops;
 
 	dev->port_mask = (1 << dev->info->port_cnt) - 1;
 
-	dev->ports = devm_kzalloc(dev->dev,
-				  dev->info->port_cnt * sizeof(struct ksz_port),
-				  GFP_KERNEL);
-	if (!dev->ports)
-		return -ENOMEM;
-	for (i = 0; i < dev->info->port_cnt; i++) {
-		spin_lock_init(&dev->ports[i].mib.stats64_lock);
-		mutex_init(&dev->ports[i].mib.cnt_mutex);
-		dev->ports[i].mib.counters =
-			devm_kzalloc(dev->dev,
-				     sizeof(u64) *
-				     (dev->info->mib_cnt + 1),
-				     GFP_KERNEL);
-		if (!dev->ports[i].mib.counters)
-			return -ENOMEM;
-	}
-
-	/* set the real number of ports */
-	dev->ds->num_ports = dev->info->port_cnt;
-
 	return 0;
 }
 

drivers/net/dsa/microchip/ksz_common.c

@@ -844,6 +844,7 @@ int ksz_switch_register(struct ksz_device *dev,
 	phy_interface_t interface;
 	unsigned int port_num;
 	int ret;
+	int i;
 
 	if (dev->pdata)
 		dev->chip_id = dev->pdata->chip_id;
@@ -885,6 +886,26 @@ int ksz_switch_register(struct ksz_device *dev,
 	if (ret)
 		return ret;
 
+	dev->ports = devm_kzalloc(dev->dev,
+				  dev->info->port_cnt * sizeof(struct ksz_port),
+				  GFP_KERNEL);
+	if (!dev->ports)
+		return -ENOMEM;
+
+	for (i = 0; i < dev->info->port_cnt; i++) {
+		spin_lock_init(&dev->ports[i].mib.stats64_lock);
+		mutex_init(&dev->ports[i].mib.cnt_mutex);
+		dev->ports[i].mib.counters =
+			devm_kzalloc(dev->dev,
+				     sizeof(u64) * (dev->info->mib_cnt + 1),
+				     GFP_KERNEL);
+		if (!dev->ports[i].mib.counters)
+			return -ENOMEM;
+	}
+
+	/* set the real number of ports */
+	dev->ds->num_ports = dev->info->port_cnt;
+
 	/* Host port interface will be self detected, or specifically set in
 	 * device tree.
 	 */