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authorEric Dumazet <eric.dumazet@gmail.com>2010-05-10 05:01:31 -0700
committerDavid S. Miller <davem@davemloft.net>2010-05-10 05:01:31 -0700
commit1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 (patch)
treed1955a7639e99832590df26466a34d5786a880ae /drivers/net/sis900.c
parent2b0b05ddc04b6d45e71cd36405df512075786f1e (diff)
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>
Diffstat (limited to 'drivers/net/sis900.c')
-rw-r--r--drivers/net/sis900.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index 6293592635b..11f7ebedcde 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -1553,7 +1553,7 @@ static void sis900_tx_timeout(struct net_device *net_dev)
spin_unlock_irqrestore(&sis_priv->lock, flags);
- net_dev->trans_start = jiffies;
+ net_dev->trans_start = jiffies; /* prevent tx timeout */
/* load Transmit Descriptor Register */
outl(sis_priv->tx_ring_dma, ioaddr + txdp);
@@ -1623,8 +1623,6 @@ sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
spin_unlock_irqrestore(&sis_priv->lock, flags);
- net_dev->trans_start = jiffies;
-
if (netif_msg_tx_queued(sis_priv))
printk(KERN_DEBUG "%s: Queued Tx packet at %p size %d "
"to slot %d.\n",