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OpenCloudOS-Kernel
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r8169: missing barriers. 

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
This commit is contained in:
Francois Romieu 2012-01-27 15:05:38 +01:00
parent 9085cdfa2f
commit 1e874e041f
1 changed files with 2 additions and 3 deletions
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5
drivers/net/ethernet/realtek/r8169.c
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@ -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);
}