This is a note to let you know that I've just added the patch titled
net: dsa: tag_ocelot: 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_ocelot-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 2407ba787b21c6f9d4e1a2de75d10acab9bd8f27
Author: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Date: Sun Nov 1 21:16:13 2020 +0200
net: dsa: tag_ocelot: let DSA core deal with TX reallocation
[ Upstream commit 9c5c3bd00557e57c1049f7861f11e5e39f0fb42d ]
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: 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>
diff --git a/net/dsa/tag_ocelot.c b/net/dsa/tag_ocelot.c
index 3b468aca5c53..16a1afd5b8e1 100644
--- a/net/dsa/tag_ocelot.c
+++ b/net/dsa/tag_ocelot.c
@@ -143,13 +143,6 @@ static struct sk_buff *ocelot_xmit(struct sk_buff *skb,
struct ocelot_port *ocelot_port;
u8 *prefix, *injection;
u64 qos_class, rew_op;
- int err;
-
- err = skb_cow_head(skb, OCELOT_TOTAL_TAG_LEN);
- if (unlikely(err < 0)) {
- netdev_err(netdev, "Cannot make room for tag.\n");
- return NULL;
- }
ocelot_port = ocelot->ports[dp->index];
