drm/mm: rewrite drm_mm_for_each_hole

When backwards is 0, __drm_mm_for_each_hole is same as
drm_mm_for_each_hole. So I rewrite drm_mm_for_each_hole
by using __drm_mm_for_each_hole.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 0de6290df4da65f1511658c0ae0bc60bf24679fa..a58cc6c05cd648f6337893a6dc6fa1ec36f41838 100644 (file)
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -180,6 +180,14 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
                                                &(mm)->head_node.node_list, \
                                                node_list)
 
+#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
+       for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
+            &entry->hole_stack != &(mm)->hole_stack ? \
+            hole_start = drm_mm_hole_node_start(entry), \
+            hole_end = drm_mm_hole_node_end(entry), \
+            1 : 0; \
+            entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
+
 /**
  * drm_mm_for_each_hole - iterator to walk over all holes
  * @entry: drm_mm_node used internally to track progress
@@ -200,20 +208,7 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node)
  * going backwards.
  */
 #define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
-       for (entry = list_entry((mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
-            &entry->hole_stack != &(mm)->hole_stack ? \
-            hole_start = drm_mm_hole_node_start(entry), \
-            hole_end = drm_mm_hole_node_end(entry), \
-            1 : 0; \
-            entry = list_entry(entry->hole_stack.next, struct drm_mm_node, hole_stack))
-
-#define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \
-       for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
-            &entry->hole_stack != &(mm)->hole_stack ? \
-            hole_start = drm_mm_hole_node_start(entry), \
-            hole_end = drm_mm_hole_node_end(entry), \
-            1 : 0; \
-            entry = list_entry((backwards) ? entry->hole_stack.prev : entry->hole_stack.next, struct drm_mm_node, hole_stack))
+       __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, 0)
 
 /*
  * Basic range manager support (drm_mm.c)