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bits.h (517B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* bits.h: Macros for dealing with bitmasks.  */
#ifndef _LINUX_BITS_H
#define _LINUX_BITS_H
#define __GENMASK(h, l) \
        (((~_UL(0)) - (_UL(1) << (l)) + 1) & \
         (~_UL(0) >> (__BITS_PER_LONG - 1 - (h))))
#define __GENMASK_ULL(h, l) \
        (((~_ULL(0)) - (_ULL(1) << (l)) + 1) & \
         (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h))))
#define __GENMASK_U128(h, l) \
	((_BIT128((h)) << 1) - (_BIT128(l)))
#endif /* _LINUX_BITS_H */