16 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _LINUX_ALIGN_H3#define _LINUX_ALIGN_H4 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