diff options
| author | Eric Paris <eparis@redhat.com> | 2010-10-13 17:50:08 -0400 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-10-21 10:12:54 +1100 |
| commit | b28efd54d9d5c8005a29cd8782335beb9daaa32d (patch) | |
| tree | 4b8be3bc7392caa68fa79456e4ec8b8a8fb6eeec /include/linux/kernel.h | |
| parent | 686a0f3d71203bbfcc186900bbb8ac2cfc3d803c (diff) | |
kernel: roundup should only reference arguments once
Currently the roundup macro references it's arguments more than one time.
This patch changes it so it will only use its arguments once.
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 6d6eea7f7b1..1759ba5adce 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -58,7 +58,12 @@ extern const char linux_proc_banner[]; #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) -#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) +#define roundup(x, y) ( \ +{ \ + typeof(y) __y = y; \ + (((x) + (__y - 1)) / __y) * __y; \ +} \ +) #define rounddown(x, y) ( \ { \ typeof(x) __x = (x); \ |