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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/7990.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/7990.c')
-rw-r--r--drivers/net/7990.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/7990.c b/drivers/net/7990.c
index f09e594..561d3d5 100644
--- a/drivers/net/7990.c
+++ b/drivers/net/7990.c
@@ -262,7 +262,7 @@ static int lance_reset (struct net_device *dev)
load_csrs (lp);
lance_init_ring (dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
status = init_restart_lance (lp);
#ifdef DEBUG_DRIVER
printk ("Lance restart=%d\n", status);
@@ -526,7 +526,7 @@ void lance_tx_timeout(struct net_device *dev)
{
printk("lance_tx_timeout\n");
lance_reset(dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue (dev);
}
EXPORT_SYMBOL_GPL(lance_tx_timeout);
@@ -574,7 +574,6 @@ int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
outs++;
/* Kick the lance: transmit now */
WRITERDP(lp, LE_C0_INEA | LE_C0_TDMD);
- dev->trans_start = jiffies;
dev_kfree_skb (skb);
spin_lock_irqsave (&lp->devlock, flags);
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