linux-kernel - [PATCH 5/5] MMC: cleanup endianity conversions

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Date:	Tue,  1 Jul 2008 02:53:04 +0300
From:	Tomas Winkler <tomas.winkler@...el.com>
To:	drzeus-list@...eus.cx
Cc:	marcel@...tmann.org, linux-kernel@...r.kernel.org,
	Tomas Winkler <tomas.winkler@...el.com>
Subject: [PATCH 5/5] MMC: cleanup endianity conversions

This patch cleans up endianity conversions im mmc core

Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 drivers/mmc/card/block.c   |    5 ++---
 drivers/mmc/core/mmc_ops.c |   12 ++++++------
 drivers/mmc/core/sd_ops.c  |    7 ++++---
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index f9ad960..4b840de 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -144,7 +144,7 @@ struct mmc_blk_request {
 static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
 {
 	int err;
-	u32 blocks;
+	__be32 blocks;
 
 	struct mmc_request mrq;
 	struct mmc_command cmd;
@@ -203,9 +203,8 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
 	if (cmd.error || data.error)
 		return (u32)-1;
 
-	blocks = ntohl(blocks);
 
-	return blocks;
+	return be32_to_cpu(blocks);
 }
 
 static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index e6703e5..3ad340c 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -271,17 +271,17 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
 int mmc_send_csd(struct mmc_card *card, u32 *csd)
 {
 	int ret, i;
-
+	__be32 csd_buf[4];
 	if (!mmc_host_is_spi(card->host))
 		return mmc_send_cxd_native(card->host, card->rca << 16,
 				csd, MMC_SEND_CSD);
 
-	ret = mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd, 16);
+	ret = mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd_buf, 16);
 	if (ret)
 		return ret;
 
 	for (i = 0;i < 4;i++)
-		csd[i] = be32_to_cpu(csd[i]);
+		csd[i] = be32_to_cpu(csd_buf[i]);
 
 	return 0;
 }
@@ -289,7 +289,7 @@ int mmc_send_csd(struct mmc_card *card, u32 *csd)
 int mmc_send_cid(struct mmc_host *host, u32 *cid)
 {
 	int ret, i;
-
+	__be32 cid_buf[4];
 	if (!mmc_host_is_spi(host)) {
 		if (!host->card)
 			return -EINVAL;
@@ -297,12 +297,12 @@ int mmc_send_cid(struct mmc_host *host, u32 *cid)
 				cid, MMC_SEND_CID);
 	}
 
-	ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid, 16);
+	ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid_buf, 16);
 	if (ret)
 		return ret;
 
 	for (i = 0;i < 4;i++)
-		cid[i] = be32_to_cpu(cid[i]);
+		cid[i] = be32_to_cpu(cid_buf[i]);
 
 	return 0;
 }
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 0d96080..7ef7b6c 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -254,6 +254,7 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 	struct mmc_command cmd;
 	struct mmc_data data;
 	struct scatterlist sg;
+	__be32 scr_buf[2];
 
 	BUG_ON(!card);
 	BUG_ON(!card->host);
@@ -282,7 +283,7 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 	data.sg = &sg;
 	data.sg_len = 1;
 
-	sg_init_one(&sg, scr, 8);
+	sg_init_one(&sg, scr_buf, 8);
 
 	mmc_set_data_timeout(&data, card);
 
@@ -293,8 +294,8 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 	if (data.error)
 		return data.error;
 
-	scr[0] = be32_to_cpu(scr[0]);
-	scr[1] = be32_to_cpu(scr[1]);
+	scr[0] = be32_to_cpu(scr_buf[0]);
+	scr[1] = be32_to_cpu(scr_buf[1]);
 
 	return 0;
 }
-- 
1.5.4.1

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