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From: Linus Walleij <linus.walleij@linaro.org>
To: linux-mmc@vger.kernel.org, Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Paolo Valente <paolo.valente@linaro.org>
Cc: Chunyan Zhang <zhang.chunyan@linaro.org>,
	Baolin Wang <baolin.wang@linaro.org>,
	linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
	Christoph Hellwig <hch@lst.de>, Arnd Bergmann <arnd@arndb.de>,
	Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH 01/16] mmc: core: move some code in mmc_start_areq()
Date: Thu,  9 Feb 2017 16:33:48 +0100	[thread overview]
Message-ID: <20170209153403.9730-2-linus.walleij@linaro.org> (raw)
In-Reply-To: <20170209153403.9730-1-linus.walleij@linaro.org>

"previous" is a better name for the variable storing the previous
asynchronous request, better than the opaque name "data" atleast.
We see that we assign the return status to the returned variable
on all code paths, so we might as well just do that immediately
after calling mmc_finalize_areq().

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/mmc/core/core.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 41b4cd01fccc..53065d1cebf7 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -683,7 +683,7 @@ struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
 {
 	enum mmc_blk_status status;
 	int start_err = 0;
-	struct mmc_async_req *data = host->areq;
+	struct mmc_async_req *previous = host->areq;
 
 	/* Prepare a new request */
 	if (areq)
@@ -691,13 +691,12 @@ struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
 
 	/* Finalize previous request */
 	status = mmc_finalize_areq(host);
+	if (ret_stat)
+		*ret_stat = status;
 
 	/* The previous request is still going on... */
-	if (status == MMC_BLK_NEW_REQUEST) {
-		if (ret_stat)
-			*ret_stat = status;
+	if (status == MMC_BLK_NEW_REQUEST)
 		return NULL;
-	}
 
 	/* Fine so far, start the new request! */
 	if (status == MMC_BLK_SUCCESS && areq)
@@ -716,9 +715,7 @@ struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
 	else
 		host->areq = areq;
 
-	if (ret_stat)
-		*ret_stat = status;
-	return data;
+	return previous;
 }
 EXPORT_SYMBOL(mmc_start_areq);
 
-- 
2.9.3

  reply	other threads:[~2017-02-09 15:33 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-09 15:33 [PATCH 00/16] multiqueue for MMC/SD third try Linus Walleij
2017-02-09 15:33 ` Linus Walleij [this message]
     [not found]   ` <CGME20170228145506epcas1p1dd72cc5738c3f36df97ac06603ad2731@epcas1p1.samsung.com>
2017-02-28 14:55     ` [PATCH 01/16] mmc: core: move some code in mmc_start_areq() Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 02/16] mmc: core: refactor asynchronous request finalization Linus Walleij
     [not found]   ` <CGME20170228145552epcas5p4a43c23971d58b30ad6ab9d2c612abe9a@epcas5p4.samsung.com>
2017-02-28 14:55     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 03/16] mmc: core: refactor mmc_request_done() Linus Walleij
     [not found]   ` <CGME20170228145627epcas1p18fb6390b7ae14a6961fac9703712e0a0@epcas1p1.samsung.com>
2017-02-28 14:56     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 04/16] mmc: core: move the asynchronous post-processing Linus Walleij
2017-02-09 15:33 ` [PATCH 05/16] mmc: core: add a kthread for completing requests Linus Walleij
     [not found]   ` <CGME20170228145719epcas5p33d013fd48483bfba477b3f607dcdccb4@epcas5p3.samsung.com>
2017-02-28 14:57     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 06/16] mmc: core: replace waitqueue with worker Linus Walleij
2017-02-22 13:29   ` Adrian Hunter
2017-03-09 22:49     ` Linus Walleij
2017-03-10 14:21       ` Adrian Hunter
2017-03-10 22:05         ` Jens Axboe
2017-03-13  9:25           ` Adrian Hunter
2017-03-13 14:19             ` Jens Axboe
2017-03-14 12:59               ` Adrian Hunter
2017-03-14 14:36                 ` Jens Axboe
2017-03-14 14:43                   ` Christoph Hellwig
2017-03-14 14:52                     ` Jens Axboe
2017-03-28  7:47                   ` Linus Walleij
2017-03-28  7:46         ` Linus Walleij
     [not found]   ` <CGME20170228161023epcas5p3916c2e171d57b8c7814be7841fbab3aa@epcas5p3.samsung.com>
2017-02-28 16:10     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 07/16] mmc: core: do away with is_done_rcv Linus Walleij
     [not found]   ` <CGME20170228161047epcas1p2f307733cb1c441d0c290e794a04a06a8@epcas1p2.samsung.com>
2017-02-28 16:10     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 08/16] mmc: core: do away with is_new_req Linus Walleij
     [not found]   ` <CGME20170228161102epcas5p25dc3b560013599fda6cc750f6d528595@epcas5p2.samsung.com>
2017-02-28 16:11     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 09/16] mmc: core: kill off the context info Linus Walleij
     [not found]   ` <CGME20170228161117epcas5p20a6e62146733466b98c0ef4ea6efbb5f@epcas5p2.samsung.com>
2017-02-28 16:11     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 10/16] mmc: queue: simplify queue logic Linus Walleij
     [not found]   ` <CGME20170228161132epcas5p265793e8675aa2f1e5dd199a9ee0ab6f1@epcas5p2.samsung.com>
2017-02-28 16:11     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 11/16] mmc: block: shuffle retry and error handling Linus Walleij
     [not found]   ` <CGME20170228174522epcas5p34dce6477eb96f7e0fb38431c4de35f60@epcas5p3.samsung.com>
2017-02-28 17:45     ` Bartlomiej Zolnierkiewicz
     [not found]       ` <CGME20170301114559epcas5p1a0c32fbc3a5573a6f1c6291792ea1b2e@epcas5p1.samsung.com>
2017-03-01 11:45         ` Bartlomiej Zolnierkiewicz
     [not found]           ` <CGME20170301155243epcas1p1140ce11db60b31065a0356525a2ee0a0@epcas1p1.samsung.com>
2017-03-01 15:52             ` Bartlomiej Zolnierkiewicz
     [not found]               ` <CGME20170301155822epcas5p103373c6afbd516e4792ebef9bb202b94@epcas5p1.samsung.com>
2017-03-01 15:58                 ` Bartlomiej Zolnierkiewicz
     [not found]               ` <CGME20170301174856epcas5p16bdf861a0117a33f9dad37a81449a95e@epcas5p1.samsung.com>
2017-03-01 17:48                 ` Bartlomiej Zolnierkiewicz
2017-02-09 15:33 ` [PATCH 12/16] mmc: queue: stop flushing the pipeline with NULL Linus Walleij
     [not found]   ` <CGME20170228180309epcas5p317af83f41d3b0426868dcfd660bd0aec@epcas5p3.samsung.com>
2017-02-28 18:03     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:34 ` [PATCH 13/16] mmc: queue: issue struct mmc_queue_req items Linus Walleij
     [not found]   ` <CGME20170228181009epcas1p4ca0e714214097d07d7172182ba8e032b@epcas1p4.samsung.com>
2017-02-28 18:10     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:34 ` [PATCH 14/16] mmc: queue: get/put struct mmc_queue_req Linus Walleij
     [not found]   ` <CGME20170228182149epcas1p28789bce5433cee1579e8b8d083ba5811@epcas1p2.samsung.com>
2017-02-28 18:21     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:34 ` [PATCH 15/16] mmc: queue: issue requests in massive parallel Linus Walleij
     [not found]   ` <CGME20170301120247epcas1p1ad2be24dc9bbd1218dab8f565fb82b27@epcas1p1.samsung.com>
2017-03-01 12:02     ` Bartlomiej Zolnierkiewicz
2017-02-09 15:34 ` [PATCH 16/16] RFC: mmc: switch MMC/SD to use blk-mq multiqueueing v3 Linus Walleij
2017-02-09 15:39 ` [PATCH 00/16] multiqueue for MMC/SD third try Christoph Hellwig
2017-02-11 13:03 ` Avri Altman
2017-02-11 13:03   ` Avri Altman
2017-02-12 16:16   ` Linus Walleij

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