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net: trans_start cleanups

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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
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6
drivers/net/sgiseeq.c
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@@ -574,7 +574,7 @@ static inline int sgiseeq_reset(struct net_device *dev)
if (err)
return err;
dev->trans_start = jiffies;
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
return 0;
@@ -638,8 +638,6 @@ static int sgiseeq_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (!(hregs->tx_ctrl & HPC3_ETXCTRL_ACTIVE))
kick_tx(dev, sp, hregs);
dev->trans_start = jiffies;
if (!TX_BUFFS_AVAIL(sp))
netif_stop_queue(dev);
spin_unlock_irqrestore(&sp->tx_lock, flags);
@@ -652,7 +650,7 @@ static void timeout(struct net_device *dev)
printk(KERN_NOTICE "%s: transmit timed out, resetting\n", dev->name);
sgiseeq_reset(dev);
dev->trans_start = jiffies;
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}