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linux/kernel.h: add typechecking to roundup macro

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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>
This commit is contained in:
Masahiro Yamada 2014-11-07 03:03:30 +09:00 • committed by Tom Rini
parent 48c7ea3966
commit 111396ccb9
2 changed files with 8 additions and 3 deletions
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9
include/linux/kernel.h
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@ -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); \