From cdd0db058d64f2619b08e7d098ee0014aa0a5bc1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 28 May 2009 00:00:41 +0000
Subject: net: dont update dev->trans_start
Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round)
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>
---
drivers/net/yellowfin.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
(limited to 'drivers/net/yellowfin.c')
diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c
index 7477ffdcddb..3c7a5053f1d 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -717,7 +717,7 @@ static void yellowfin_tx_timeout(struct net_device *dev)
if (yp->cur_tx - yp->dirty_tx < TX_QUEUE_SIZE)
netif_wake_queue (dev); /* Typical path */
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
dev->stats.tx_errors++;
}
@@ -876,7 +876,6 @@ static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev)
netif_start_queue (dev); /* Typical path */
else
yp->tx_full = 1;
- dev->trans_start = jiffies;
if (yellowfin_debug > 4) {
printk(KERN_DEBUG "%s: Yellowfin transmit frame #%d queued in slot %d.\n",
--
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