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