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net: dsa: tag_mtk: 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.

Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2020-11-01 21:16:14 +02:00 committed by Jakub Kicinski
parent 9c5c3bd005
commit 941f66beb7
1 changed files with 0 additions and 3 deletions
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3
net/dsa/tag_mtk.c
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@ -34,9 +34,6 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
* table with VID.
*/
if (!skb_vlan_tagged(skb)) {
if (skb_cow_head(skb, MTK_HDR_LEN) < 0)
return NULL;
skb_push(skb, MTK_HDR_LEN);
memmove(skb->data, skb->data + MTK_HDR_LEN, 2 * ETH_ALEN);
is_vlan_skb = false;