diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 892cda7..67035ba 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -772,6 +772,7 @@
 
 EXPORT_SYMBOL_GPL(ide_setup_pci_devices);
 
+#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
 /*
  *	Module interfaces
  */
@@ -878,3 +879,4 @@
 		__pci_register_driver(d, d->driver.owner, d->driver.mod_name);
 	}
 }
+#endif