net: trans_start cleanups

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2010-05-10 05:01:31 -07:00
committed by David S. Miller
parent 2b0b05ddc0
commit 1ae5dc342a
168 changed files with 103 additions and 314 deletions

View File

@@ -987,8 +987,6 @@ static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb,
iowrite32(tx_status, port_base + TxStatus0 + entry * 4);
mmiowb();
dev->trans_start = jiffies;
if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC)
netif_stop_queue(dev);