This is a note to let you know that I've just added the patch titled net: dsa: tag_ar9331: let DSA core deal with TX reallocation to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: net-dsa-tag_ar9331-let-dsa-core-deal-with-tx-realloc.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 1cf4673ba62477fd972a8369f7b126c735916840 Author: Vladimir Oltean <vladimir.oltean@xxxxxxx> Date: Sun Nov 1 21:16:20 2020 +0200 net: dsa: tag_ar9331: let DSA core deal with TX reallocation [ Upstream commit 86c4ad9a7876777c12fd5a7010152e4141fcb94d ] 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: Per Forlin <per.forlin@xxxxxxxx> Cc: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx> Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx> Tested-by: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx> Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/dsa/tag_ar9331.c b/net/dsa/tag_ar9331.c index 55b00694cdba..002cf7f952e2 100644 --- a/net/dsa/tag_ar9331.c +++ b/net/dsa/tag_ar9331.c @@ -31,9 +31,6 @@ static struct sk_buff *ar9331_tag_xmit(struct sk_buff *skb, __le16 *phdr; u16 hdr; - if (skb_cow_head(skb, AR9331_HDR_LEN) < 0) - return NULL; - phdr = skb_push(skb, AR9331_HDR_LEN); hdr = FIELD_PREP(AR9331_HDR_VERSION_MASK, AR9331_HDR_VERSION);