1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* bits.h: Macros for dealing with bitmasks. */ 3 4 #ifndef _LINUX_BITS_H 5 #define _LINUX_BITS_H 6 7 #define __GENMASK(h, l) \ 8 (((~_UL(0)) - (_UL(1) << (l)) + 1) & \ 9 (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) 10 11 #define __GENMASK_ULL(h, l) \ 12 (((~_ULL(0)) - (_ULL(1) << (l)) + 1) & \ 13 (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h)))) 14 15 #define __GENMASK_U128(h, l) \ 16 ((_BIT128((h)) << 1) - (_BIT128(l))) 17 18 #endif /* _LINUX_BITS_H */ 19