1 files changed, 12 insertions, 6 deletions

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 87e01615053d..07c9f09c856d 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -224,6 +224,12 @@ static struct msi_desc* alloc_msi_entry(void)
         return entry;
 }
 
+static void pci_intx_for_msi(struct pci_dev *dev, int enable)
+{
+        if (!(dev->dev_flags & PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG))
+                pci_intx(dev, enable);
+}
+
 #ifdef CONFIG_PM
 static void __pci_restore_msi_state(struct pci_dev *dev)
 {
@@ -237,7 +243,7 @@ static void __pci_restore_msi_state(struct pci_dev *dev)
         entry = get_irq_msi(dev->irq);
         pos = entry->msi_attrib.pos;
 
-        pci_intx(dev, 0);               /* disable intx */
+        pci_intx_for_msi(dev, 0);
         msi_set_enable(dev, 0);
         write_msi_msg(dev->irq, &entry->msg);
         if (entry->msi_attrib.maskbit)
@@ -260,7 +266,7 @@ static void __pci_restore_msix_state(struct pci_dev *dev)
                 return;
 
         /* route the table */
-        pci_intx(dev, 0);               /* disable intx */
+        pci_intx_for_msi(dev, 0);
         msix_set_enable(dev, 0);
 
         list_for_each_entry(entry, &dev->msi_list, list) {
@@ -343,7 +349,7 @@ static int msi_capability_init(struct pci_dev *dev)
         }
 
         /* Set MSI enabled bits  */
-        pci_intx(dev, 0);               /* disable intx */
+        pci_intx_for_msi(dev, 0);
         msi_set_enable(dev, 1);
         dev->msi_enabled = 1;
 
@@ -433,7 +439,7 @@ static int msix_capability_init(struct pci_dev *dev,
                 i++;
         }
         /* Set MSI-X enabled bits */
-        pci_intx(dev, 0);               /* disable intx */
+        pci_intx_for_msi(dev, 0);
         msix_set_enable(dev, 1);
         dev->msix_enabled = 1;
 
@@ -528,7 +534,7 @@ void pci_disable_msi(struct pci_dev* dev)
                 return;
 
         msi_set_enable(dev, 0);
-        pci_intx(dev, 1);               /* enable intx */
+        pci_intx_for_msi(dev, 1);
         dev->msi_enabled = 0;
 
         BUG_ON(list_empty(&dev->msi_list));
@@ -640,7 +646,7 @@ void pci_disable_msix(struct pci_dev* dev)
                 return;
 
         msix_set_enable(dev, 0);
-        pci_intx(dev, 1);               /* enable intx */
+        pci_intx_for_msi(dev, 1);
         dev->msix_enabled = 0;
 
         msix_free_all_irqs(dev);