From: Masahiro Yamada Date: Thu, 21 Dec 2017 04:51:46 +0000 (+0900) Subject: linux/kernel.h: Add ALIGN_DOWN macro X-Git-Tag: v2018.03-rc1~215 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=75db00eea03d5b892c4e69ab17891fca968187d3;p=u-boot linux/kernel.h: Add ALIGN_DOWN macro Follow Linux commit ed067d4a859f ("linux/kernel.h: Add ALIGN_DOWN macro"). Signed-off-by: Masahiro Yamada --- diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 87d2d9554d..04a09eb4f6 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -38,6 +38,7 @@ #define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) #define ALIGN(x,a) __ALIGN_MASK((x),(typeof(x))(a)-1) +#define ALIGN_DOWN(x, a) ALIGN((x) - ((a) - 1), (a)) #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) #define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)