Changeset 375fc3f in mainline for kernel/generic/include/align.h

Timestamp:

2011-12-04T22:31:39Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

961c0484

Parents:

9fe7d6c

Message:

Add IS_ALIGNED().

File:

• kernel/generic/include/align.h (modified) (2 diffs)

kernel/generic/include/align.h

@@ -42 +42 @@
  *
  * @param s Address or size to be aligned.
- * @param a Size of alignment, must be power of 2.
+ * @param a Size of alignment, must be a power of 2.
  */
 #define ALIGN_DOWN(s, a)  ((s) & ~((a) - 1))
@@ -50 +50 @@
  *
  * @param s Address or size to be aligned.
- * @param a Size of alignment, must be power of 2.
+ * @param a Size of alignment, must be a power of 2.
  */
 #define ALIGN_UP(s, a)  (((s) + ((a) - 1)) & ~((a) - 1))
+
+/** Check alignment.
+ *
+ * @param s Address or size to be checked for alignment.
+ * @param a Size of alignment, must be a power of 2.
+ */ 
+#define IS_ALIGNED(s, a)        (ALIGN_UP((s), (a)) == (s))
 
 #endif