__const_hweight8   18 include/asm-generic/bitops/const_hweight.h #define __const_hweight16(w) (__const_hweight8(w)  + __const_hweight8((w)  >> 8 ))
__const_hweight8   25 include/asm-generic/bitops/const_hweight.h #define hweight8(w)  (__builtin_constant_p(w) ? __const_hweight8(w)  : __arch_hweight8(w))
__const_hweight8   33 include/asm-generic/bitops/const_hweight.h #define HWEIGHT8(w)  (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight8(w))