From bb507fe11ffda19eee158ce0be42d222135b7aca Mon Sep 17 00:00:00 2001 From: "shemminger@osdl.org" Date: Mon, 28 Aug 2006 10:00:48 -0700 Subject: [PATCH] sky2: MSI test timing The test for MSI IRQ could have timing issues. The PCI write needs to be pushed out before waiting, and the wait queue should be initialized before the IRQ. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 6cc5696e9a3e..2a2adc23f6ae 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -3189,6 +3189,8 @@ static int __devinit sky2_test_msi(struct sky2_hw *hw) struct pci_dev *pdev = hw->pdev; int err; + init_waitqueue_head (&hw->msi_wait); + sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW); err = request_irq(pdev->irq, sky2_test_intr, IRQF_SHARED, DRV_NAME, hw); @@ -3198,10 +3200,8 @@ static int __devinit sky2_test_msi(struct sky2_hw *hw) return err; } - init_waitqueue_head (&hw->msi_wait); - sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ); - wmb(); + sky2_read8(hw, B0_CTST); wait_event_timeout(hw->msi_wait, hw->msi_detected, HZ/10); -- cgit v1.2.2