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-rw-r--r--net/core/netpoll.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 758dafe284c0..f8e74e511ce6 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -250,22 +250,23 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
250 unsigned long flags; 250 unsigned long flags;
251 251
252 local_irq_save(flags); 252 local_irq_save(flags);
253 if (netif_tx_trylock(dev)) { 253 /* try until next clock tick */
254 /* try until next clock tick */ 254 for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
255 for (tries = jiffies_to_usecs(1)/USEC_PER_POLL; 255 tries > 0; --tries) {
256 tries > 0; --tries) { 256 if (netif_tx_trylock(dev)) {
257 if (!netif_queue_stopped(dev)) 257 if (!netif_queue_stopped(dev))
258 status = dev->hard_start_xmit(skb, dev); 258 status = dev->hard_start_xmit(skb, dev);
259 netif_tx_unlock(dev);
259 260
260 if (status == NETDEV_TX_OK) 261 if (status == NETDEV_TX_OK)
261 break; 262 break;
262 263
263 /* tickle device maybe there is some cleanup */
264 netpoll_poll(np);
265
266 udelay(USEC_PER_POLL);
267 } 264 }
268 netif_tx_unlock(dev); 265
266 /* tickle device maybe there is some cleanup */
267 netpoll_poll(np);
268
269 udelay(USEC_PER_POLL);
269 } 270 }
270 local_irq_restore(flags); 271 local_irq_restore(flags);
271 } 272 }