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) (((~_UL(0)) << (l)) & (~_UL(0) >> (BITS_PER_LONG - 1 - (h)))) 8 9 #define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h)))) 10 11 #define __GENMASK_U128(h, l) \ 12 ((_BIT128((h)) << 1) - (_BIT128(l))) 13 14 #endif /* _LINUX_BITS_H */ 15