linux-kernel - [PATCH] mmc: core: remove issue

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Date:	Thu, 19 Sep 2013 10:20:14 -0700
From:	Grant Grundler <grundler@...omium.org>
To:	Chris Ball <cjb@...top.org>, Seungwon Jeon <tgih.jun@...sung.com>
Cc:	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Grant Grundler <grundler@...omium.org>
Subject: [PATCH] mmc: core: remove issue_fn indirect function call

struct mmc_queue defines issue_fn as an indirect function call.
issue_fn field only gets set to mmc_blk_issue_rq and only gets
invoked immediately after calling blk_fetch_request().
Don't bother with indirect function call - it's pointless and just
obfuscates the code.

Signed-off-by: Grant Grundler <grundler@...omium.org>
---
 drivers/mmc/card/block.c | 1 -
 drivers/mmc/card/queue.c | 2 +-
 drivers/mmc/card/queue.h | 1 -
 3 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 1a3163f..b2cdd10 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2072,7 +2072,6 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 	if (ret)
 		goto err_putdisk;
 
-	md->queue.issue_fn = mmc_blk_issue_rq;
 	md->queue.data = md;
 
 	md->disk->major	= MMC_BLOCK_MAJOR;
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index fa9632e..6f9adc5 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -67,7 +67,7 @@ static int mmc_queue_thread(void *d)
 		if (req || mq->mqrq_prev->req) {
 			set_current_state(TASK_RUNNING);
 			cmd_flags = req ? req->cmd_flags : 0;
-			mq->issue_fn(mq, req);
+			mmc_blk_issue_rq(mq, req);
 			if (mq->flags & MMC_QUEUE_NEW_REQUEST) {
 				mq->flags &= ~MMC_QUEUE_NEW_REQUEST;
 				continue; /* fetch again */
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
index 5752d50..35380015 100644
--- a/drivers/mmc/card/queue.h
+++ b/drivers/mmc/card/queue.h
@@ -51,7 +51,6 @@ struct mmc_queue {
 #define MMC_QUEUE_SUSPENDED	(1 << 0)
 #define MMC_QUEUE_NEW_REQUEST	(1 << 1)
 
-	int			(*issue_fn)(struct mmc_queue *, struct request *);
 	void			*data;
 	struct request_queue	*queue;
 	struct mmc_queue_req	mqrq[2];
-- 
1.8.4

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