[PATCH 5.10 116/290] net: dsa: tag_qca: let DSA core deal with TX reallocation

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From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

From: Vladimir Oltean <vladimir.oltean@xxxxxxx>

[ Upstream commit 9bbda29ae1044bc4c1c01a5b7c44688c4765785f ]

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: John Crispin <john@xxxxxxxxxxx>
Cc: Alexander Lobakin <alobakin@xxxxx>
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/dsa/tag_qca.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index 1b9e8507112b..88181b52f480 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -34,9 +34,6 @@ static struct sk_buff *qca_tag_xmit(struct sk_buff *skb, struct net_device *dev)
 	__be16 *phdr;
 	u16 hdr;
 
-	if (skb_cow_head(skb, QCA_HDR_LEN) < 0)
-		return NULL;
-
 	skb_push(skb, QCA_HDR_LEN);
 
 	memmove(skb->data, skb->data + QCA_HDR_LEN, 2 * ETH_ALEN);
-- 
2.30.1






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