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

@@ -866,7 +866,7 @@ static void cops_timeout(struct net_device *dev)
}
printk(KERN_WARNING "%s: Transmit timed out.\n", dev->name);
cops_jumpstart(dev); /* Restart the card. */
dev->trans_start = jiffies;
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}
@@ -919,9 +919,8 @@ static netdev_tx_t cops_send_packet(struct sk_buff *skb,
/* Done sending packet, update counters and cleanup. */
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
dev->trans_start = jiffies;
dev_kfree_skb (skb);
return NETDEV_TX_OK;
return NETDEV_TX_OK;
}
/*