r8169: missing barriers.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 610f4b3655c7..8dd13f5a9203 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5552,7 +5552,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
         if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
                 netif_stop_queue(dev);
-                smp_rmb();
+                smp_mb();
                 if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
                         netif_wake_queue(dev);
         }
@@ -5653,7 +5653,7 @@ static void rtl8169_tx_interrupt(struct net_device *dev,
 
         if (tp->dirty_tx != dirty_tx) {
                 tp->dirty_tx = dirty_tx;
-                smp_wmb();
+                smp_mb();
                 if (netif_queue_stopped(dev) &&
                     (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
                         netif_wake_queue(dev);
@@ -5664,7 +5664,6 @@ static void rtl8169_tx_interrupt(struct net_device *dev,
                  * of start_xmit activity is detected (if it is not detected,
                  * it is slow enough). -- FR
                  */
-                smp_rmb();
                 if (tp->cur_tx != dirty_tx)
                         RTL_W8(TxPoll, NPQ);
         }