[PATCH] skge: pci bus post fixes

At the end of a critical section, we need to force the PCI write
to complete by doing a read.

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

diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index b8ebd9c7d40abd1d078831880c790d67b0764fea..85296ba5eac29a7d26ed09d8219f1bb3f59e3bf2 100644 (file)
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2747,7 +2747,7 @@ static int skge_poll(struct net_device *dev, int *budget)
        spin_lock_irq(&hw->hw_lock);
        hw->intr_mask |= rxirqmask[skge->port];
        skge_write32(hw, B0_IMSK, hw->intr_mask);
-       mmiowb();
+       skge_read32(hw, B0_IMSK);
        spin_unlock_irq(&hw->hw_lock);
 
        return 0;
@@ -2881,6 +2881,7 @@ static void skge_extirq(void *arg)
        spin_lock_irq(&hw->hw_lock);
        hw->intr_mask |= IS_EXT_REG;
        skge_write32(hw, B0_IMSK, hw->intr_mask);
+       skge_read32(hw, B0_IMSK);
        spin_unlock_irq(&hw->hw_lock);
 }
 
@@ -2955,6 +2956,7 @@ static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
                skge_error_irq(hw);
 
        skge_write32(hw, B0_IMSK, hw->intr_mask);
+       skge_read32(hw, B0_IMSK);
        spin_unlock(&hw->hw_lock);
 
        return IRQ_HANDLED;
@@ -3424,6 +3426,7 @@ static void __devexit skge_remove(struct pci_dev *pdev)
        spin_lock_irq(&hw->hw_lock);
        hw->intr_mask = 0;
        skge_write32(hw, B0_IMSK, 0);
+       skge_read32(hw, B0_IMSK);
        spin_unlock_irq(&hw->hw_lock);
 
        skge_write16(hw, B0_LED, LED_STAT_OFF);