[PATCH] PCI/MSI: Simplify default_restore_msi_irq()

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Both MSI and MSI-X irq will be associate to msi_desc,
Use irq_get_msi_desc() to get the msi_desc for MSI-X
to simplify code. Also use __write_msi_msg() instead
of write_msi_msg() to avoid the redundant calls.

Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
---
 drivers/pci/msi.c |   13 ++-----------
 1 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 5a40516..9ad920a 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -119,18 +119,9 @@ static void default_restore_msi_irq(struct pci_dev *dev, int irq)
 {
 	struct msi_desc *entry;
 
-	entry = NULL;
-	if (dev->msix_enabled) {
-		list_for_each_entry(entry, &dev->msi_list, list) {
-			if (irq == entry->irq)
-				break;
-		}
-	} else if (dev->msi_enabled)  {
-		entry = irq_get_msi_desc(irq);
-	}
-
+	entry = irq_get_msi_desc(irq);
 	if (entry)
-		write_msi_msg(irq, &entry->msg);
+		__write_msi_msg(entry, &entry->msg);
 }
 
 void __weak arch_restore_msi_irqs(struct pci_dev *dev)
-- 
1.7.1

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