[Mesa-dev] [PATCH] util/list: add list_first/last_entry

[Rob Clark]

From: Rob Clark <robclark at freedesktop.org>

I need an easier way to get at head/tail in ir3.

Signed-off-by: Rob Clark <robclark at freedesktop.org>
---
Applies on top of Jason's move-u_double_list-to-util patches

 src/util/list.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/util/list.h b/src/util/list.h
index 50bad4a..7ec2622 100644
--- a/src/util/list.h
+++ b/src/util/list.h
@@ -137,6 +137,13 @@ static inline void list_validate(struct list_head *list)
 	     - ((char *)&(sample)->member - (char *)(sample)))
 #endif
 
+#define list_first_entry(ptr, type, member) \
+        LIST_ENTRY(type, (ptr)->next, member)
+
+#define list_last_entry(ptr, type, member) \
+        LIST_ENTRY(type, (ptr)->prev, member)
+
+
 #define LIST_FOR_EACH_ENTRY(pos, head, member)				\
    for (pos = NULL, pos = container_of((head)->next, pos, member);	\
 	&pos->member != (head);						\
-- 
2.3.6