mtd/include/linux/mtd compatmac.h,1.57,1.58

[David Woodhouse]

Update of /home/cvs/mtd/include/linux/mtd
In directory phoenix.infradead.org:/tmp/cvs-serv10321

Modified Files:
	compatmac.h 
Log Message:
Add container_of()


Index: compatmac.h
===================================================================
RCS file: /home/cvs/mtd/include/linux/mtd/compatmac.h,v
retrieving revision 1.57
retrieving revision 1.58
diff -u -r1.57 -r1.58
--- compatmac.h	2 Jul 2003 10:45:20 -0000	1.57
+++ compatmac.h	3 Oct 2003 23:00:58 -0000	1.58
@@ -122,4 +122,10 @@
 
 #endif /* 2.5.70 */
 
+#ifndef container_of
+#define container_of(ptr, type, member) ({		     \
+	const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+#endif
+
 #endif /* __LINUX_MTD_COMPATMAC_H__ */