#ifndef _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
#define _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
/*
* Compile time versions of __arch_hweightN()
*/
#define __const_hweight8(w) \
((unsigned int) \
((!!((w) & (1ULL << 0))) + \
(!!((w) & (1ULL << 1))) + \
(!!((w) & (1ULL << 2))) + \
(!!((w) & (1ULL << 3))) + \
(!!((w) & (1ULL << 4))) + \
(!!((w) & (1ULL << 5))) + \
(!!((w) & (1ULL << 6))) + \
(!!((w) & (1ULL << 7)))))
#define __const_hweight16(w) (__const_hweight8(w) + __const_hweight8((w) >> 8 ))
#define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16))
#define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32))
/*
* Generic interface.
*/
#define hweight8(w) (__builtin_constant_p(w) ? __const_hweight8(w) : __arch_hweight8(w))
#define hweight16(w) (__builtin_constant_p(w) ? __const_hweight16(w) : __arch_hweight16(w))
#define hweight32(w) (__builtin_constant_p(w) ? __const_hweight32(w) : __arch_hweight32(w))
#define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w))
/*
* Interface for known constant arguments
*/
#define HWEIGHT8(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight8(w))
#define HWEIGHT16(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight16(w))
#define HWEIGHT32(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight32(w))
#define HWEIGHT64(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight64(w))
/*
* Type invariant interface to the compile time constant hweight functions.
*/
#define HWEIGHT(w) HWEIGHT64((u64)w)
#endif /* _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_ */
efs/?id=3f67790d2b7e322bcf363ec717085dd78c3ea7cd'>refslogtreecommitdiff
Merge tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Three changes here: two run of the mill driver specific fixes and a
change from Mark Rutland which reverts some new device specific ACPI
binding code which was added during the merge window as there are
concerns about this sending the wrong signal about usage of regulators
in ACPI systems"
* tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: fixed: Revert support for ACPI interface
regulator: axp20x: AXP806: Fix dcdcb being set instead of dcdce
regulator: twl6030: fix range comparison, allowing vsel = 59