Commit 9ccb8975 authored by David S. Miller's avatar David S. Miller
Browse files

net: Orphan and de-dst skbs earlier in xmit path. 



This way GSO packets don't get handled differently.

With help from Eric Dumazet.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
parent e326bed2

net/core/dev.c

+8 −7
Original line number Diff line number Diff line
@@ -1902,13 +1902,6 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, 
		if (!list_empty(&ptype_all))

			dev_queue_xmit_nit(skb, dev);



		if (netif_needs_gso(dev, skb)) {

			if (unlikely(dev_gso_segment(skb)))

				goto out_kfree_skb;

			if (skb->next)

				goto gso;

		}



		/*

		 * If device doesnt need skb->dst, release it right now while

		 * its hot in this cpu cache
@@ -1917,6 +1910,14 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, 
			skb_dst_drop(skb);



		skb_orphan_try(skb);



		if (netif_needs_gso(dev, skb)) {

			if (unlikely(dev_gso_segment(skb)))

				goto out_kfree_skb;

			if (skb->next)

				goto gso;

		}



		rc = ops->ndo_start_xmit(skb, dev);

		if (rc == NETDEV_TX_OK)

			txq_trans_update(txq);