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Commit 9c9f2d63 authored by Pierre Ossman's avatar Pierre Ossman
Browse files

mmc: clean up unused parts of block driver 



Remove dead code and unused structs from the block driver.

Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent 585a2858

drivers/mmc/card/block.c

+0 −18
Original line number Diff line number Diff line
@@ -135,23 +135,6 @@ struct mmc_blk_request { 
	struct mmc_data		data;

};



static int mmc_blk_prep_rq(struct mmc_queue *mq, struct request *req)

{

	struct mmc_blk_data *md = mq->data;

	int stat = BLKPREP_OK;



	/*

	 * If we have no device, we haven't finished initialising.

	 */

	if (!md || !mq->card) {

		printk(KERN_ERR "%s: killing request - no device/host\n",

		       req->rq_disk->disk_name);

		stat = BLKPREP_KILL;

	}



	return stat;

}



static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)

{

	int err;
@@ -460,7 +443,6 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card) 
	if (ret)

		goto err_putdisk;



	md->queue.prep_fn = mmc_blk_prep_rq;

	md->queue.issue_fn = mmc_blk_issue_rq;

	md->queue.data = md;

drivers/mmc/card/queue.c

+8 −27
Original line number Diff line number Diff line
@@ -20,40 +20,21 @@ 
#define MMC_QUEUE_SUSPENDED	(1 << 0)



/*

 * Prepare a MMC request.  Essentially, this means passing the

 * preparation off to the media driver.  The media driver will

 * create a mmc_io_request in req->special.

 * Prepare a MMC request. This just filters out odd stuff.

 */

static int mmc_prep_request(struct request_queue *q, struct request *req)

{

	struct mmc_queue *mq = q->queuedata;

	int ret = BLKPREP_KILL;



	if (blk_special_request(req)) {

		/*

		 * Special commands already have the command

		 * blocks already setup in req->special.

		 */

		BUG_ON(!req->special);



		ret = BLKPREP_OK;

	} else if (blk_fs_request(req) || blk_pc_request(req)) {

		/*

		 * Block I/O requests need translating according

		 * to the protocol.

		 */

		ret = mq->prep_fn(mq, req);

	} else {

	/*

		 * Everything else is invalid.

	 * We only like normal block requests.

	 */

	if (!blk_fs_request(req) && !blk_pc_request(req)) {

		blk_dump_rq_flags(req, "MMC bad request");

		return BLKPREP_KILL;

	}



	if (ret == BLKPREP_OK)

	req->cmd_flags |= REQ_DONTPREP;



	return ret;

	return BLKPREP_OK;

}



static int mmc_queue_thread(void *d)

drivers/mmc/card/queue.h

+0 −8
Original line number Diff line number Diff line
@@ -10,20 +10,12 @@ struct mmc_queue { 
	struct semaphore	thread_sem;

	unsigned int		flags;

	struct request		*req;

	int			(*prep_fn)(struct mmc_queue *, struct request *);

	int			(*issue_fn)(struct mmc_queue *, struct request *);

	void			*data;

	struct request_queue	*queue;

	struct scatterlist	*sg;

};



struct mmc_io_request {

	struct request		*rq;

	int			num;

	struct mmc_command	selcmd;		/* mmc_queue private */

	struct mmc_command	cmd[4];		/* max 4 commands */

};



extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *);

extern void mmc_cleanup_queue(struct mmc_queue *);

extern void mmc_queue_suspend(struct mmc_queue *);