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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-11-07 03:03:30 +0900
committerTom Rini <trini@ti.com>2014-11-20 11:28:25 -0500
commit111396ccb9a8d3e1f0e9d9921d3dbd6c7a70423f (patch)
treea1acad32c2f2c1c0fcef6f0504ef7d4c339a5c66 /include
parent48c7ea39663a7c151a2a0b1af5d45ae3cf676299 (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')
-rw-r--r--include/common.h2
-rw-r--r--include/linux/kernel.h9
2 files changed, 8 insertions, 3 deletions
diff --git a/include/common.h b/include/common.h
index c1bdaeccaa4..ce0a7343f4e 100644
--- a/include/common.h
+++ b/include/common.h
@@ -967,7 +967,7 @@ static inline phys_addr_t map_to_sysmem(const void *ptr)
* Usage of this macro shall be avoided or used with extreme care!
*/
#define DEFINE_ALIGN_BUFFER(type, name, size, align) \
- static char __##name[roundup(size * sizeof(type), align)] \
+ static char __##name[ALIGN(size * sizeof(type), align)] \
__aligned(align); \
\
static type *name = (type *)__##name
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index f84a764bc90..0e838de0945 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); \