diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index a312e76..daa4249 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -404,7 +404,12 @@
 		kfree(sd);
 	} else {
 		get_current_resources(device, busnum, domain, &resources);
-		if (list_empty(&resources))
+
+		/*
+		 * _CRS with no apertures is normal, so only fall back to
+		 * defaults or native bridge info if we're ignoring _CRS.
+		 */
+		if (!pci_use_crs)
 			x86_pci_root_bus_resources(busnum, &resources);
 		bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd,
 					  &resources);