Differential D26681 Diff 77895 sys/compat/linuxkpi/common/include/linux/bitfield.h

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				/* Public domain. */

				#ifndef _LINUX_BITFIELD_H
				#define _LINUX_BITFIELD_H

				#include <asm/byteorder.h>

				#define __bf_shf(x) (__builtin_ffsll(x) - 1)

				#define FIELD_GET(_m, _v) \
				((typeof(_m))(((_v) & (_m)) >> __bf_shf(_m)))

				#define FIELD_PREP(_m, _v) \
				(((typeof(_m))(_v) << __bf_shf(_m)) & (_m))

				#endif