net: dsa: ksz: use common define for tag len

Remove special taglen define KSZ8795_INGRESS_TAG_LEN
and use generic KSZ_INGRESS_TAG_LEN instead.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/dsa/tag_ksz.c

@@ -84,8 +84,6 @@ static struct sk_buff *ksz_common_rcv(struct sk_buff *skb,
  *	  (eg, 0x00=port1, 0x02=port3, 0x06=port7)
  */
 
-#define KSZ8795_INGRESS_TAG_LEN		1
-
 #define KSZ8795_TAIL_TAG_OVERRIDE	BIT(6)
 #define KSZ8795_TAIL_TAG_LOOKUP		BIT(7)
 
@@ -96,12 +94,12 @@ static struct sk_buff *ksz8795_xmit(struct sk_buff *skb, struct net_device *dev)
 	u8 *tag;
 	u8 *addr;
 
-	nskb = ksz_common_xmit(skb, dev, KSZ8795_INGRESS_TAG_LEN);
+	nskb = ksz_common_xmit(skb, dev, KSZ_INGRESS_TAG_LEN);
 	if (!nskb)
 		return NULL;
 
 	/* Tag encoding */
-	tag = skb_put(nskb, KSZ8795_INGRESS_TAG_LEN);
+	tag = skb_put(nskb, KSZ_INGRESS_TAG_LEN);
 	addr = skb_mac_header(nskb);
 
 	*tag = 1 << dp->index;
@@ -124,7 +122,7 @@ static const struct dsa_device_ops ksz8795_netdev_ops = {
 	.proto	= DSA_TAG_PROTO_KSZ8795,
 	.xmit	= ksz8795_xmit,
 	.rcv	= ksz8795_rcv,
-	.overhead = KSZ8795_INGRESS_TAG_LEN,
+	.overhead = KSZ_INGRESS_TAG_LEN,
 };
 
 DSA_TAG_DRIVER(ksz8795_netdev_ops);