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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>
This commit is contained in:
Geliang Tang 2015-11-21 22:04:04 +08:00 committed by Daniel Vetter
parent a48a62bc92
commit 18b40c58a1
1 changed files with 9 additions and 14 deletions
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23
include/drm/drm_mm.h
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@ -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)