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From 4fad63b82746ea571edc2ec1100ad3208cf5af08 Mon Sep 17 00:00:00 2001
From: Eric Hopper <hopper@omnifarious.org>
Date: Fri, 29 Jun 2007 01:30:09 -0700
Subject: [PATCH] Use offsetof macro instead of unportable pointer arithmetic.
---
cbtcommon/list.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/cbtcommon/list.h b/cbtcommon/list.h
index 4ee245d..cf4b3ed 100644
--- a/cbtcommon/list.h
+++ b/cbtcommon/list.h
@@ -23,6 +23,7 @@
*/
#include "inline.h"
+#include <stddef.h>
struct list_head {
struct list_head *next, *prev;
@@ -107,6 +108,6 @@ static INLINE void list_splice(struct list_head *list, struct list_head *head)
}
#define list_entry(ptr, type, member) \
- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+ ((type *)((char *)(ptr)-offsetof(type, member)))
#endif /* _COMMON_LIST_H */
--
1.6.5.GIT
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