linux-kernel - [PATCH 3.16.y-ckt 118/135] ahci_xgene: Fix the endianess issue in APM X-Gene SoC AHCI SATA controller driver.

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Message-Id: <1423224113-10958-119-git-send-email-luis.henriques@canonical.com>
Date:	Fri,  6 Feb 2015 12:01:36 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Suman Tripathi <stripathi@....com>, Tejun Heo <tj@...nel.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 118/135] ahci_xgene: Fix the endianess issue in APM X-Gene SoC AHCI SATA controller driver.

3.16.7-ckt6 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Suman Tripathi <stripathi@....com>

commit 5c0b8e0de76a86edb99e46612fd9d341b4c4fa0a upstream.

This patch fixes the big endian mode issue with function
xgene_ahci_read_id.

Signed-off-by: Suman Tripathi <stripathi@....com>
Signed-off-by: Tejun Heo <tj@...nel.org>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/ata/ahci_xgene.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 10d524699676..dcd758be12db 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -174,7 +174,7 @@ static unsigned int xgene_ahci_read_id(struct ata_device *dev,
 	 *
 	 * Clear reserved bit 8 (DEVSLP bit) as we don't support DEVSLP
 	 */
-	id[ATA_ID_FEATURE_SUPP] &= ~(1 << 8);
+	id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8));
 
 	return 0;
 }
-- 
2.1.4

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