blockdev: convert some macros to static inlines

#else /* CONFIG_BLK_DEV_INTEGRITY */

#define blk_integrity_rq(rq)			(0)

#define blk_rq_count_integrity_sg(a, b)		(0)

#define blk_rq_map_integrity_sg(a, b, c)	(0)

#define bdev_get_integrity(a)			(0)

#define blk_get_integrity(a)			(0)

#define blk_integrity_compare(a, b)		(0)

#define blk_integrity_register(a, b)		(0)

#define blk_integrity_unregister(a)		do { } while (0)

#define blk_queue_max_integrity_segments(a, b)	do { } while (0)

#define queue_max_integrity_segments(a)		(0)

#define blk_integrity_merge_rq(a, b, c)		(0)

#define blk_integrity_merge_bio(a, b, c)	(0)

#define blk_integrity_is_initialized(a)		(0)

struct bio;

struct block_device;

struct gendisk;

struct blk_integrity;

static inline int blk_integrity_rq(struct request *rq)

{

	return 0;

}

static inline int blk_rq_count_integrity_sg(struct request_queue *q,

					    struct bio *b)

{

	return 0;

}

static inline int blk_rq_map_integrity_sg(struct request_queue *q,

					  struct bio *b,

					  struct scatterlist *s)

{

	return 0;

}

static inline struct blk_integrity *bdev_get_integrity(struct block_device *b)

{

	return 0;

}

static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)

{

	return NULL;

}

static inline int blk_integrity_compare(struct gendisk *a, struct gendisk *b)

{

	return 0;

}

static inline int blk_integrity_register(struct gendisk *d,

					 struct blk_integrity *b)

{

	return 0;

}

static inline void blk_integrity_unregister(struct gendisk *d)

{

}

static inline void blk_queue_max_integrity_segments(struct request_queue *q,

						    unsigned int segs)

{

}

static inline unsigned short queue_max_integrity_segments(struct request_queue *q)

{

	return 0;

}

static inline int blk_integrity_merge_rq(struct request_queue *rq,

					 struct request *r1,

					 struct request *r2)

{

	return 0;

}

static inline int blk_integrity_merge_bio(struct request_queue *rq,

					  struct request *r,

					  struct bio *b)

{

	return 0;

}

static inline bool blk_integrity_is_initialized(struct gendisk *g)

{

	return 0;

}

#endif /* CONFIG_BLK_DEV_INTEGRITY */