Commit 6ed94135 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by Jakub Kicinski
Browse files

net: dsa: tag_lan9303: let DSA core deal with TX reallocation 



Now that we have a central TX reallocation procedure that accounts for
the tagger's needed headroom in a generic way, we can remove the
skb_cow_head call.

Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 941f66be

net/dsa/tag_lan9303.c

+0 −9
Original line number Diff line number Diff line
@@ -58,15 +58,6 @@ static struct sk_buff *lan9303_xmit(struct sk_buff *skb, struct net_device *dev) 
	__be16 *lan9303_tag;

	u16 tag;



	/* insert a special VLAN tag between the MAC addresses

	 * and the current ethertype field.

	 */

	if (skb_cow_head(skb, LAN9303_TAG_LEN) < 0) {

		dev_dbg(&dev->dev,

			"Cannot make room for the special tag. Dropping packet\n");

		return NULL;

	}



	/* provide 'LAN9303_TAG_LEN' bytes additional space */

	skb_push(skb, LAN9303_TAG_LEN);