AcoSail/kernel_optimize_test
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[PATCH] skge: get rid of warning on race

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Get rid of warning in case of race with ring full and lockless
tx on the skge driver. It is possible to be in the transmit
routine with no available slots and already stopped.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Stephen Hemminger 2005-12-06 15:01:49 -08:00 committed by Jeff Garzik
parent 0e67050666
commit ee1c81917a
1 changed files with 6 additions and 4 deletions
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10
drivers/net/skge.c
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@ -2280,11 +2280,13 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
}
if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) {
netif_stop_queue(dev);
spin_unlock_irqrestore(&skge->tx_lock, flags);
if (!netif_stopped(dev)) {
netif_stop_queue(dev);
printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
dev->name);
printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
dev->name);
}
spin_unlock_irqrestore(&skge->tx_lock, flags);
return NETDEV_TX_BUSY;
}