From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-f53.google.com ([209.85.215.53]:36266 "EHLO mail-lf0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750951AbdAXKSX (ORCPT ); Tue, 24 Jan 2017 05:18:23 -0500 Received: by mail-lf0-f53.google.com with SMTP id z134so108127486lff.3 for ; Tue, 24 Jan 2017 02:18:22 -0800 (PST) From: Linus Walleij To: linux-mmc@vger.kernel.org, linux-block@vger.kernel.org, Ulf Hansson Cc: Chunyan Zhang , Baolin Wang , Paolo Valente , Linus Walleij Subject: [PATCH 5/6] mmc: block: introduce new_areq and old_areq Date: Tue, 24 Jan 2017 11:17:56 +0100 Message-Id: <20170124101757.19676-6-linus.walleij@linaro.org> In-Reply-To: <20170124101757.19676-1-linus.walleij@linaro.org> References: <20170124101757.19676-1-linus.walleij@linaro.org> Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org Recycling the same variable in an x=x+1 fashion may seem clever here but it makes the code terse and hard to follow for humans. Introduce a new_areq and old_areq variable so we see what is going on. Signed-off-by: Linus Walleij --- drivers/mmc/core/block.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 4bbb3d16c09b..f3e0c778cdbd 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1631,7 +1631,8 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc) enum mmc_blk_status status; struct mmc_queue_req *mq_rq; struct request *req; - struct mmc_async_req *areq; + struct mmc_async_req *new_areq; + struct mmc_async_req *old_areq; if (!rqc && !mq->mqrq_prev->req) return 0; @@ -1651,11 +1652,12 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc) } mmc_blk_rw_rq_prep(mq->mqrq_cur, card, 0, mq); - areq = &mq->mqrq_cur->mmc_active; + new_areq = &mq->mqrq_cur->mmc_active; } else - areq = NULL; - areq = mmc_start_req(card->host, areq, &status); - if (!areq) { + new_areq = NULL; + + old_areq = mmc_start_req(card->host, new_areq, &status); + if (!old_areq) { /* * We have just put the first request into the pipeline * and there is nothing more to do until it is @@ -1670,7 +1672,7 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc) * An asynchronous request has been completed and we proceed * to handle the result of it. */ - mq_rq = container_of(areq, struct mmc_queue_req, mmc_active); + mq_rq = container_of(old_areq, struct mmc_queue_req, mmc_active); brq = &mq_rq->brq; req = mq_rq->req; type = rq_data_dir(req) == READ ? MMC_BLK_READ : MMC_BLK_WRITE; -- 2.9.3