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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/epic100.c
parent2b0b05ddc04b6d45e71cd36405df512075786f1e (diff)
downloadop-kernel-dev-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.zip
op-kernel-dev-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.tar.gz
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/epic100.c')
-rw-r--r--drivers/net/epic100.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c
index 8b5a203..a48da2d 100644
--- a/drivers/net/epic100.c
+++ b/drivers/net/epic100.c
@@ -908,7 +908,7 @@ static void epic_tx_timeout(struct net_device *dev)
outl(TxQueued, dev->base_addr + COMMAND);
}
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
ep->stats.tx_errors++;
if (!ep->tx_full)
netif_wake_queue(dev);
@@ -1006,7 +1006,6 @@ static netdev_tx_t epic_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Trigger an immediate transmit demand. */
outl(TxQueued, dev->base_addr + COMMAND);
- dev->trans_start = jiffies;
if (debug > 4)
printk(KERN_DEBUG "%s: Queued Tx packet size %d to slot %d, "
"flag %2.2x Tx status %8.8x.\n",
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