Index: mpich-4.3.0~b1/src/mpl/src/gpu/mpl_gpu_hip.c
===================================================================
--- mpich-4.3.0~b1.orig/src/mpl/src/gpu/mpl_gpu_hip.c
+++ mpich-4.3.0~b1/src/mpl/src/gpu/mpl_gpu_hip.c
@@ -144,10 +144,13 @@ int MPL_gpu_query_pointer_attr(const voi
                 attr->type = MPL_GPU_POINTER_DEV;
                 attr->device = attr->device_attr.device;
                 break;
+#if 0
+		// undefined , maybe hipMemoryTypeUnified ??
             case hipMemoryTypeUnregistered:
                 attr->type = MPL_GPU_POINTER_UNREGISTERED_HOST;
                 attr->device = -1;
                 break;
+#endif		
             case hipMemoryTypeManaged:
                 attr->type = MPL_GPU_POINTER_MANAGED;
                 attr->device = attr->device_attr.device;