diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 9a79b0df..19e9d627 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -387,11 +387,11 @@ struct drm_buf_entry {
  */
 
 #define DRM_FILE_HASH_ORDER 8
-typedef enum{
+enum drm_ref_type {
 	_DRM_REF_USE=0,
 	_DRM_REF_TYPE1,
 	_DRM_NO_REF_TYPES
-} drm_ref_t;
+};
 
 
 /** File private data */
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index a81dfbde..681d37fe 100644
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -1217,7 +1217,7 @@ static int drm_buffer_object_unmap(struct drm_file * priv, uint32_t handle)
 
 static void drm_buffer_user_object_unmap(struct drm_file * priv,
 					 struct drm_user_object * uo,
-					 drm_ref_t action)
+					 enum drm_ref_type action)
 {
 	struct drm_buffer_object *bo =
 	    drm_user_object_entry(uo, struct drm_buffer_object, base);
diff --git a/linux-core/drm_object.c b/linux-core/drm_object.c
index 00627725..3d866333 100644
--- a/linux-core/drm_object.c
+++ b/linux-core/drm_object.c
@@ -106,7 +106,7 @@ int drm_remove_user_object(struct drm_file * priv, struct drm_user_object * item
 }
 
 static int drm_object_ref_action(struct drm_file * priv, struct drm_user_object * ro,
-				 drm_ref_t action)
+				 enum drm_ref_type action)
 {
 	int ret = 0;
 
@@ -125,7 +125,7 @@ static int drm_object_ref_action(struct drm_file * priv, struct drm_user_object
 }
 
 int drm_add_ref_object(struct drm_file * priv, struct drm_user_object * referenced_object,
-		       drm_ref_t ref_action)
+		       enum drm_ref_type ref_action)
 {
 	int ret = 0;
 	struct drm_ref_object *item;
@@ -183,7 +183,7 @@ int drm_add_ref_object(struct drm_file * priv, struct drm_user_object * referenc
 
 struct drm_ref_object *drm_lookup_ref_object(struct drm_file * priv,
 					struct drm_user_object * referenced_object,
-					drm_ref_t ref_action)
+					enum drm_ref_type ref_action)
 {
 	struct drm_hash_item *hash;
 	int ret;
@@ -219,7 +219,7 @@ void drm_remove_ref_object(struct drm_file * priv, struct drm_ref_object * item)
 	int ret;
 	struct drm_user_object *user_object = (struct drm_user_object *) item->hash.key;
 	struct drm_open_hash *ht = &priv->refd_object_hash[item->unref_action];
-	drm_ref_t unref_action;
+	enum drm_ref_type unref_action;
 
 	DRM_ASSERT_LOCKED(&priv->head->dev->struct_mutex);
 	unref_action = item->unref_action;
diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h
index 441c19f2..f792dc84 100644
--- a/linux-core/drm_objects.h
+++ b/linux-core/drm_objects.h
@@ -64,9 +64,9 @@ struct drm_user_object {
 	struct drm_file *owner;
 	void (*ref_struct_locked) (struct drm_file * priv,
 				   struct drm_user_object * obj,
-				   drm_ref_t ref_action);
+				   enum drm_ref_type ref_action);
 	void (*unref) (struct drm_file * priv, struct drm_user_object * obj,
-		       drm_ref_t unref_action);
+		       enum drm_ref_type unref_action);
 	void (*remove) (struct drm_file * priv, struct drm_user_object * obj);
 };
 
@@ -81,7 +81,7 @@ struct drm_ref_object {
 	struct drm_hash_item hash;
 	struct list_head list;
 	atomic_t refcount;
-	drm_ref_t unref_action;
+	enum drm_ref_type unref_action;
 };
 
 /**
@@ -112,7 +112,7 @@ extern int drm_remove_user_object(struct drm_file * priv, struct drm_user_object
 
 extern int drm_add_ref_object(struct drm_file * priv,
 			      struct drm_user_object * referenced_object,
-			      drm_ref_t ref_action);
+			      enum drm_ref_type ref_action);
 
 /*
  * Must be called with the struct_mutex held.
@@ -120,7 +120,7 @@ extern int drm_add_ref_object(struct drm_file * priv,
 
 struct drm_ref_object *drm_lookup_ref_object(struct drm_file * priv,
 					struct drm_user_object * referenced_object,
-					drm_ref_t ref_action);
+					enum drm_ref_type ref_action);
 /*
  * Must be called with the struct_mutex held.
  * If "item" has been obtained by a call to drm_lookup_ref_object. You may not