[PATCH] mv643xx_eth: Always free completed tx descs on tx interrupt

Fix the tx interrupt handler to free completed tx descriptors even
when NAPI is enabled.  Otherwise, the tx queue would fill up resulting
in poor performance and "NETDEV WATCHDOG: <iface>: transmit timed out"
messages.
Signed-off-by: NBrent Cook <bcook@bpointsys.com>
Signed-off-by: NDale Farnsworth <dale@farnsworth.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/mv643xx_eth.c

@@ -552,9 +552,9 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id,
 #else
 	if (eth_int_cause & ETH_INT_CAUSE_RX)
 		mv643xx_eth_receive_queue(dev, INT_MAX);
+#endif
 	if (eth_int_cause_ext & ETH_INT_CAUSE_TX)
 		mv643xx_eth_free_completed_tx_descs(dev);
-#endif
 
 	/*
 	 * If no real interrupt occured, exit.