#ifndef _LINUX_BITOPS_H#define _LINUX_BITOPS_H/* * ffs: find first bit set. This is defined the same way as * the libc and compiler builtin ffs routines, therefore * differs in spirit from the above ffz (man ffs). */static inline int generic_ffs(int x){	int r = 1;	if (!x)		return 0;	if (!(x & 0xffff)) {		x >>= 16;		r += 16;	}	if (!(x & 0xff)) {		x >>= 8;		r += 8;	}	if (!(x & 0xf)) {		x >>= 4;		r += 4;	}	if (!(x & 3)) {		x >>= 2;		r += 2;	}	if (!(x & 1)) {		x >>= 1;		r += 1;	}	return r;}/* * hweightN: returns the hamming weight (i.e. the number * of bits set) of a N-bit word */static inline unsigned int generic_hweight32(unsigned int w){	unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);	res = (res & 0x33333333) + ((res >> 2) & 0x33333333);	res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);	res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);	return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);}static inline unsigned int generic_hweight16(unsigned int w){	unsigned int res = (w & 0x5555) + ((w >> 1) & 0x5555);	res = (res & 0x3333) + ((res >> 2) & 0x3333);	res = (res & 0x0F0F) + ((res >> 4) & 0x0F0F);	return (res & 0x00FF) + ((res >> 8) & 0x00FF);}static inline unsigned int generic_hweight8(unsigned int w){	unsigned int res = (w & 0x55) + ((w >> 1) & 0x55);	res = (res & 0x33) + ((res >> 2) & 0x33);	return (res & 0x0F) + ((res >> 4) & 0x0F);}#include <asm/bitops.h>#endif