#ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_ #define _ASM_GENERIC_BITOPS_HWEIGHT_H_ #include <asm/types.h> extern unsigned int hweight32(unsigned int w); extern unsigned int hweight16(unsigned int w); extern unsigned int hweight8(unsigned int w); extern unsigned long hweight64(__u64 w); #endif /* _ASM_GENERIC_BITOPS_HWEIGHT_H_ */