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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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5
drivers/net/xilinx_emaclite.c
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@@ -558,7 +558,7 @@ static void xemaclite_tx_timeout(struct net_device *dev)
}
/* To exclude tx timeout */
dev->trans_start = 0xffffffff - TX_TIMEOUT - TX_TIMEOUT;
dev->trans_start = jiffies; /* prevent tx timeout */
/* We're all ready to go. Start the queue */
netif_wake_queue(dev);
@@ -590,7 +590,7 @@ static void xemaclite_tx_handler(struct net_device *dev)
dev->stats.tx_bytes += lp->deferred_skb->len;
dev_kfree_skb_irq(lp->deferred_skb);
lp->deferred_skb = NULL;
dev->trans_start = jiffies;
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}
}
@@ -1054,7 +1054,6 @@ static int xemaclite_send(struct sk_buff *orig_skb, struct net_device *dev)
dev->stats.tx_bytes += len;
dev_kfree_skb(new_skb);
dev->trans_start = jiffies;
return 0;
}