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| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-11-07 03:03:30 +0900 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-11-20 11:28:25 -0500 |
| commit | 111396ccb9a8d3e1f0e9d9921d3dbd6c7a70423f (patch) | |
| tree | a1acad32c2f2c1c0fcef6f0504ef7d4c339a5c66 /include/linux/kernel.h | |
| parent | 48c7ea39663a7c151a2a0b1af5d45ae3cf676299 (diff) | |
linux/kernel.h: add typechecking to roundup macro
This commit replaces roundup macro with the one from Linux Kernel.
DEFINE_ALIGN_BUFFER must be fixed because typechecking can not
be used in this context.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index f84a764bc9..0e838de094 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -61,8 +61,13 @@ # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP(ll,d) #endif -#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) - +/* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */ +#define roundup(x, y) ( \ +{ \ + const typeof(y) __y = y; \ + (((x) + (__y - 1)) / __y) * __y; \ +} \ +) #define rounddown(x, y) ( \ { \ typeof(x) __x = (x); \ |