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| author | Eric Dumazet <edumazet@google.com> | 2016-04-13 06:50:07 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-15 03:40:24 +0200 |
| commit | d21fd63ea3856208c3a1cb9b26d81898a2ccf71b (patch) | |
| tree | f48f3f0e06688ce66ddc7ef7fb4823db499fec69 /net/core/dev.c | |
| parent | packet: uses kfree_skb() for errors. (diff) | |
| download | linux-d21fd63ea3856208c3a1cb9b26d81898a2ccf71b.tar.xz linux-d21fd63ea3856208c3a1cb9b26d81898a2ccf71b.zip | |
net: validate_xmit_skb() changes
skbs given to validate_xmit_skb() should not have a next
pointer anymore.
Also if a packet is dropped, increment dev->tx_dropped
__dev_queue_xmit() no longer has to change tx_dropped in this case.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 556dd09af3b8..52d446b2cb99 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2959,9 +2959,6 @@ static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device { netdev_features_t features; - if (skb->next) - return skb; - features = netif_skb_features(skb); skb = validate_xmit_vlan(skb, features); if (unlikely(!skb)) @@ -3004,6 +3001,7 @@ static struct sk_buff *validate_xmit_skb(struct sk_buff *skb, struct net_device out_kfree_skb: kfree_skb(skb); out_null: + atomic_long_inc(&dev->tx_dropped); return NULL; } @@ -3393,7 +3391,7 @@ static int __dev_queue_xmit(struct sk_buff *skb, void *accel_priv) skb = validate_xmit_skb(skb, dev); if (!skb) - goto drop; + goto out; HARD_TX_LOCK(dev, txq, cpu); @@ -3420,7 +3418,6 @@ recursion_alert: } rc = -ENETDOWN; -drop: rcu_read_unlock_bh(); atomic_long_inc(&dev->tx_dropped); |