diff --git a/hw/spapr_vio.h b/hw/spapr_vio.h
index d8527be..ae3283c 100644
--- a/hw/spapr_vio.h
+++ b/hw/spapr_vio.h
@@ -89,8 +89,6 @@ struct VIOsPAPRDevice {
 
 struct VIOsPAPRBus {
     BusState bus;
-    const char *dt_name, *dt_type, *dt_compatible;
-    target_ulong signal_mask;
     int (*init)(VIOsPAPRDevice *dev);
     int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
 };