LXR linux/include/linux/align.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_ALIGN_H
   3#define _LINUX_ALIGN_H
   4
   5#include <linux/const.h>
   6
   7/* @a is a power of 2 value */
   8#define ALIGN(x, a)             __ALIGN_KERNEL((x), (a))
   9#define ALIGN_DOWN(x, a)        __ALIGN_KERNEL((x) - ((a) - 1), (a))
  10#define __ALIGN_MASK(x, mask)   __ALIGN_KERNEL_MASK((x), (mask))
  11#define PTR_ALIGN(p, a)         ((typeof(p))ALIGN((unsigned long)(p), (a)))
  12#define PTR_ALIGN_DOWN(p, a)    ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a)))
  13#define IS_ALIGNED(x, a)                (((x) & ((typeof(x))(a) - 1)) == 0)
  14
  15#endif  /* _LINUX_ALIGN_H */
  16