[PATCH Vivid SRU] UBUNTU: SAUCE: ipr: Byte swapping for device_id attribute in sysfs

[tim.gardner at canonical.com]

From: Wen Xiong <wenxiong at linux.vnet.ibm.com>

BugLink: http://bugs.launchpad.net/bugs/1453892

Upstream

On LE system, users see the wrong device_id attribute. This patch
does necessary byte swapping for device_id attribute and works on
both of LE and BE systems.

Signed-off-by: Wen Xiong <wenxiong at linux.vnet.ibm.com>
Signed-off-by: Brian King <brking at linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley at Odin.com>
(cherry picked from linux-next commit bb8647e86e769bd45d2d5e010b3af516210d5760)
Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
---
 drivers/scsi/ipr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 9219953..b8171cc 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -4440,7 +4440,7 @@ static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *a
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
 	res = (struct ipr_resource_entry *)sdev->hostdata;
 	if (res && ioa_cfg->sis64)
-		len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
+		len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
 	else if (res)
 		len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
 
-- 
1.9.1