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@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vladimir Oltean 2020-11-01 21:16:13 +02:00 committed by Greg Kroah-Hartman
parent cf5c6682e2
commit 54787024c8

View File

@ -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];