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authorStephen Hemminger <shemminger@vyatta.com>2009-06-17 07:30:34 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-17 18:46:50 -0700
commit1fd82f3cafa8e7854db08eccbdb8a9218225e1ef (patch)
tree3bb1e16a67381ceaa56c7bb44a4909b551c6933f
parentc0bad0f2e4366d5bbfe0c4a7a80bca8f4b05272b (diff)
downloadlinux-2.6.34-ux500-1fd82f3cafa8e7854db08eccbdb8a9218225e1ef.tar.gz
sky2: PCI irq issues
Add some read's to avoid any PCI posting issues when controlling irq's. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/sky2.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index e4e24ee00fb..cc1c8d13845 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1495,6 +1495,7 @@ static int sky2_up(struct net_device *dev)
imask = sky2_read32(hw, B0_IMSK);
imask |= portirq_msk[port];
sky2_write32(hw, B0_IMSK, imask);
+ sky2_read32(hw, B0_IMSK);
sky2_set_multicast(dev);
@@ -1812,6 +1813,7 @@ static int sky2_down(struct net_device *dev)
imask = sky2_read32(hw, B0_IMSK);
imask &= ~portirq_msk[port];
sky2_write32(hw, B0_IMSK, imask);
+ sky2_read32(hw, B0_IMSK);
synchronize_irq(hw->pdev->irq);