Revert "ucc_geth: returns NETDEV_TX_BUSY when BD ring is full"

This reverts commit 18babd38547a042a4bfd4154a014d1ad33373eb0.

Michael Barkowski points out that it's wrong, and I agree.  The
patch causes a problem rather than fixes one after another
patch "ucc_geth: Fix BD processing" was applied.  Before that
patch, current packet should be blocked.  However after the patch
current packet is ok and we only need to block next.

Reported-by: Michael Barkowski <michael.barkowski@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index dab88b9..639e1e6 100644 (file)
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3607,7 +3607,6 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
        if (bd == ugeth->confBd[txQ]) {
                if (!netif_queue_stopped(dev))
                        netif_stop_queue(dev);
-               return NETDEV_TX_BUSY;
        }
 
        ugeth->txBd[txQ] = bd;
@@ -3623,7 +3622,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
        spin_unlock_irq(&ugeth->lock);
 
-       return NETDEV_TX_OK;
+       return 0;
 }
 
 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)