From: Zhang Yanfei <[email protected]> This patch imports Macros for align operation: - _ALIGN_UP(addr, size): align addr up on a size boundary - _ALIGN_DOWN(addr, size): align addr down on a size boundary - _ALIGN(addr, size): align addr up on a size boundary
Signed-off-by: Zhang Yanfei <[email protected]> --- kexec/kexec.h | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/kexec/kexec.h b/kexec/kexec.h index 94c62c1..916a24b 100644 --- a/kexec/kexec.h +++ b/kexec/kexec.h @@ -100,6 +100,18 @@ do { \ } \ } while(0) +#define _ALIGN_UP_MASK(addr, mask) (((addr) + (mask)) & ~(mask)) +#define _ALIGN_DOWN_MASK(addr, mask) ((addr) & ~(mask)) + +/* align addr on a size boundary - adjust address up/down if needed */ +#define _ALIGN_UP(addr, size) \ + _ALIGN_UP_MASK(addr, (typeof(addr))(size) - 1) +#define _ALIGN_DOWN(addr, size) \ + _ALIGN_DOWN_MASK(addr, (typeof(addr))(size) - 1) + +/* align addr on a size boundary - adjust address up if needed */ +#define _ALIGN(addr, size) _ALIGN_UP(addr, size) + extern unsigned long long mem_min, mem_max; extern int kexec_debug; -- 1.7.1 _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
