linux-kernel - [PATCH 10/10] ide: drop rq->data handling from ide_map

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Message-Id: <1237990673-8358-11-git-send-email-tj@kernel.org>
Date:	Wed, 25 Mar 2009 23:17:53 +0900
From:	Tejun Heo <tj@...nel.org>
To:	bzolnier@...il.com, linux-kernel@...r.kernel.org, axboe@...nel.dk,
	linux-ide@...r.kernel.org
Cc:	Tejun Heo <tj@...nel.org>
Subject: [PATCH 10/10] ide: drop rq->data handling from ide_map_sg()

Impact: remove code path which is no longer necessary

All IDE data transfers now use rq->bio.  Simplify ide_map_sg()
accordingly.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Jens Axboe <axboe@...nel.dk>
---
 drivers/ide/ide-io.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 9ad9bc1..6746171 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -244,11 +244,7 @@ void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd)
 	struct scatterlist *sg = hwif->sg_table;
 	struct request *rq = cmd->rq;
 
-	if (!rq->bio) {
-		sg_init_one(sg, rq->data, rq->data_len);
-		cmd->sg_nents = 1;
-	} else
-		cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
+	cmd->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
 }
 EXPORT_SYMBOL_GPL(ide_map_sg);
 
-- 
1.6.0.2

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