diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 17e64c0..2fa2124 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1706,11 +1706,16 @@ domain_context_mapping(struct dmar_domain *domain, struct pci_dev *pdev,
 	int ret;
 	struct pci_dev *tmp, *parent;
 
-	ret = domain_context_mapping_one(domain, pci_domain_nr(pdev->bus),
-					 pdev->bus->number, pdev->devfn,
-					 translation);
-	if (ret)
-		return ret;
+	if (pdev->vendor == 0x1b4b && pdev->device == 0x9172) {
+		dev_dbg(&pdev->dev, "skipping function 0.");
+	} else {
+		ret = domain_context_mapping_one(domain,
+				pci_domain_nr(pdev->bus),
+				pdev->bus->number, pdev->devfn,
+				translation);
+		if (ret)
+			return ret;
+	}
 
 	/* quirk for undeclared pci functions */
 	ret = map_quirky_dma_fn(domain, pdev, translation);