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>

diff --git a/include/common.h b/include/common.h
index c1bdaec..ce0a734 100644 (file)
--- 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 f84a764..0e838de 100644 (file)
--- 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);                            \