[PATCH] skge: use mmiowb

Add mmio barriers at the appropriate places, don't have a platform
that needs them, but this is where the documentation of the patch
says to add them.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 5ece10034df9..8c674cdecd7b 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2394,9 +2394,11 @@ static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
                 netif_stop_queue(dev);
         }
 
-        dev->trans_start = jiffies;
+        mmiowb();
         spin_unlock(&skge->tx_lock);
 
+        dev->trans_start = jiffies;
+
         return NETDEV_TX_OK;
 }
 
@@ -2730,6 +2732,8 @@ static int skge_poll(struct net_device *dev, int *budget)
                 return 1; /* not done */
 
         netif_rx_complete(dev);
+        mmiowb();
+
         hw->intr_mask |= skge->port == 0 ? (IS_R1_F|IS_XA1_F) : (IS_R2_F|IS_XA2_F);
         skge_write32(hw, B0_IMSK, hw->intr_mask);