[PATCH] skge: get rid of warning on race
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>
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 7164678..8b6e2a1 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2280,11 +2280,13 @@
}
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;
}