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authorEric Dumazet <eric.dumazet@gmail.com>2010-05-10 16:01:31 +0400
committerDavid S. Miller <davem@davemloft.net>2010-05-10 16:01:31 +0400
commit1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 (patch)
treed1955a7639e99832590df26466a34d5786a880ae /drivers/net/wireless/zd1201.c
parent2b0b05ddc04b6d45e71cd36405df512075786f1e (diff)
downloadlinux-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.tar.xz
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/wireless/zd1201.c')
-rw-r--r--drivers/net/wireless/zd1201.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 1e2b684f8ed4..ece86a5d3355 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -827,7 +827,6 @@ static netdev_tx_t zd1201_hard_start_xmit(struct sk_buff *skb,
} else {
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
- dev->trans_start = jiffies;
}
kfree_skb(skb);
@@ -845,7 +844,7 @@ static void zd1201_tx_timeout(struct net_device *dev)
usb_unlink_urb(zd->tx_urb);
dev->stats.tx_errors++;
/* Restart the timeout to quiet the watchdog: */
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
}
static int zd1201_set_mac_address(struct net_device *dev, void *p)