1 files changed, 12 insertions, 1 deletions

diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index 942b64fc7f1f..fd2dbd7eed7b 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -197,9 +197,20 @@ static struct vmd_irq_list *vmd_next_irq(struct vmd_dev *vmd, struct msi_desc *d
         int i, best = 1;
         unsigned long flags;
 
-        if (pci_is_bridge(msi_desc_to_pci_dev(desc)) || vmd->msix_count == 1)
+        if (vmd->msix_count == 1)
                 return &vmd->irqs[0];
 
+        /*
+         * White list for fast-interrupt handlers. All others will share the
+         * "slow" interrupt vector.
+         */
+        switch (msi_desc_to_pci_dev(desc)->class) {
+        case PCI_CLASS_STORAGE_EXPRESS:
+                break;
+        default:
+                return &vmd->irqs[0];
+        }
+
         raw_spin_lock_irqsave(&list_lock, flags);
         for (i = 1; i < vmd->msix_count; i++)
                 if (vmd->irqs[i].count < vmd->irqs[best].count)