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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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2
drivers/net/slip.c
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@@ -458,7 +458,7 @@ static void sl_tx_timeout(struct net_device *dev)
* 14 Oct 1994 Dmitry Gorodchanin.
*/
#ifdef SL_CHECK_TRANSMIT
if (time_before(jiffies, dev->trans_start + 20 * HZ)) {
if (time_before(jiffies, dev_trans_start(dev) + 20 * HZ)) {
/* 20 sec timeout not reached */
goto out;
}