diff --git a/arch/s390/pci/pci_bus.c b/arch/s390/pci/pci_bus.c
index 5967f3014156..c93486a9989b 100644
--- a/arch/s390/pci/pci_bus.c
+++ b/arch/s390/pci/pci_bus.c
@@ -197,9 +197,10 @@ void pcibios_bus_add_device(struct pci_dev *pdev)
 	 * With pdev->no_vf_scan the common PCI probing code does not
 	 * perform PF/VF linking.
 	 */
-	if (zdev->vfn)
+	if (zdev->vfn) {
 		zpci_bus_setup_virtfn(zdev->zbus, pdev, zdev->vfn);
-
+		pdev->no_command_memory = 1;
+	}
 }
 
 static int zpci_bus_add_device(struct zpci_bus *zbus, struct zpci_dev *zdev)