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The vDSO implementation can only include headers from the vdso/ namespace. To enable the usage of the ALIGN() macro from the vDSO, move linux/align.h to vdso/align.h wholly. As the only dependency linux/const.h is only a wrapper around vdso/const.h anyways adapt that dependency. Also provide a compatibility wrapper linux/align.h. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250204-vdso-store-rng-v3-3-13a4669dfc8c@linutronix.de
15 lines
551 B
C
15 lines
551 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __VDSO_ALIGN_H
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#define __VDSO_ALIGN_H
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#include <vdso/const.h>
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/* @a is a power of 2 value */
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#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
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#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a))
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#define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask))
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#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
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#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a)))
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#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
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#endif /* __VDSO_ALIGN_H */
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