iommu/vt-d: Use pasid_pte_is_present() helper function

Use the pasid_pte_is_present() helper for present bit check in the
intel_pasid_tear_down_entry().

Signed-off-by: Liu Yi L <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lu Baolu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>

Author: yiliu1765

drivers/iommu/intel/pasid.c

@@ -517,7 +517,7 @@ void intel_pasid_tear_down_entry(struct intel_iommu *iommu, struct device *dev,
 	if (WARN_ON(!pte))
 		return;
 
-	if (!(pte->val[0] & PASID_PTE_PRESENT))
+	if (!pasid_pte_is_present(pte))
 		return;
 
 	did = pasid_get_domain_id(pte);