/* SPDX-License-Identifier: GPL-2.0 */#ifndef _ASM_GENERIC_BITOPS_FFS_H_#define _ASM_GENERIC_BITOPS_FFS_H_ /** * generic_ffs - find first bit set * @x: the word to search * * This is defined the same way as * the libc and compiler builtin ffs routines, therefore * differs in spirit from ffz (man ffs). */static inline __attribute_const__ 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;} #ifndef __HAVE_ARCH_FFS#define ffs(x) generic_ffs(x)#endif #endif /* _ASM_GENERIC_BITOPS_FFS_H_ */