diff options
| author | Matthew Wilcox <matthew@wil.cx> | 2007-09-11 18:23:47 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-11 20:21:20 -0400 |
| commit | a83308e60f63749dc1d08acb0d8fa9e2ec13c9a7 (patch) | |
| tree | 6a71aead89fcd7b06cf121b8e9134cfe4ff0c259 | |
| parent | f3d79b20df961880697c8442e1f7bc7969ce50a4 (diff) | |
PTR_ALIGN
The AdvanSys driver wants to align some pointers, and the ALIGN macro
doesn't work for pointers. Rather than try to make it work, add a new
PTR_ALIGN macro which is typesafe.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/kernel.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index f592df74b3cf..47160fe378c9 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h | |||
| @@ -34,6 +34,7 @@ extern const char linux_proc_banner[]; | |||
| 34 | 34 | ||
| 35 | #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) | 35 | #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) |
| 36 | #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) | 36 | #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) |
| 37 | #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) | ||
| 37 | 38 | ||
| 38 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) | 39 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) |
| 39 | 40 | ||