Commit 64e29e42 authored by Adrian Hunter's avatar Adrian Hunter Committed by Ulf Hansson
Browse files

mmc: queue: Factor out mmc_queue_alloc_sgs() 



In preparation for supporting a queue of requests, factor out
mmc_queue_alloc_sgs().

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarHarjani Ritesh <riteshh@codeaurora.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent f2b8b522

drivers/mmc/card/queue.c

+16 −6
Original line number Diff line number Diff line
@@ -237,6 +237,21 @@ static int mmc_queue_alloc_bounce_sgs(struct mmc_queue *mq, 
}

#endif



static int mmc_queue_alloc_sgs(struct mmc_queue *mq, int max_segs)

{

	struct mmc_queue_req *mqrq_cur = mq->mqrq_cur;

	struct mmc_queue_req *mqrq_prev = mq->mqrq_prev;

	int ret;



	mqrq_cur->sg = mmc_alloc_sg(max_segs, &ret);

	if (ret)

		return ret;



	mqrq_prev->sg = mmc_alloc_sg(max_segs, &ret);



	return ret;

}



/**

 * mmc_init_queue - initialise a queue structure.

 * @mq: mmc queue
@@ -309,12 +324,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, 
		blk_queue_max_segments(mq->queue, host->max_segs);

		blk_queue_max_segment_size(mq->queue, host->max_seg_size);



		mqrq_cur->sg = mmc_alloc_sg(host->max_segs, &ret);

		if (ret)

			goto cleanup_queue;





		mqrq_prev->sg = mmc_alloc_sg(host->max_segs, &ret);

		ret = mmc_queue_alloc_sgs(mq, host->max_segs);

		if (ret)

			goto cleanup_queue;

	}

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