netdev - [PATCH net-next 6/6] veth: use skb_prepare_for

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Message-Id: <d07db89b5847806e63e2fdf66b88af706a461c9d.1627405778.git.pabeni@redhat.com>
Date:   Wed, 28 Jul 2021 18:24:04 +0200
From:   Paolo Abeni <pabeni@...hat.com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 6/6] veth: use skb_prepare_for_gro()

Leveraging the previous patch we can now avoid orphaning the
skb in the veth gro path, allowing correct backpressure.

Signed-off-by: Paolo Abeni <pabeni@...hat.com>
---
 drivers/net/veth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 381670c08ba7..50eb43e5bf45 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -713,7 +713,7 @@ static struct sk_buff *veth_xdp_rcv_skb(struct veth_rq *rq,
 	int mac_len, delta, off;
 	struct xdp_buff xdp;
 
-	skb_orphan_partial(skb);
+	skb_prepare_for_gro(skb);
 
 	rcu_read_lock();
 	xdp_prog = rcu_dereference(rq->xdp_prog);
-- 
2.26.3