HWEIGHT16 35 include/asm-generic/bitops/const_hweight.h #define HWEIGHT16(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight16(w)) HWEIGHT16 35 tools/include/asm-generic/bitops/const_hweight.h #define HWEIGHT16(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight16(w))