HWEIGHT8 34 include/asm-generic/bitops/const_hweight.h #define HWEIGHT8(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight8(w)) HWEIGHT8 34 tools/include/asm-generic/bitops/const_hweight.h #define HWEIGHT8(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight8(w))