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