[ 33/76] qla2xxx: Fix endianness of task management response code

From: Greg Kroah-Hartman
Date: Thu Oct 18 2012 - 23:01:56 EST

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


From: Roland Dreier <roland@xxxxxxxxxxxxxxx>

commit e4b11b89f9039ca97b2ed1b6efeb6749fbdeb252 upstream.

The qla2xxx firmware actually expects the task management response
code in a CTIO IOCB with SCSI status mode 1 to be in little-endian
byte order, ie the response code should be the first byte in the
sense_data[] array. The old code erroneously byte-swapped the
response code, which puts it in the wrong place on the wire and leads
to initiators thinking every task management request succeeds (since
they see 0 in the byte where they look for the response code).

Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Cc: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
Cc: Arun Easi <arun.easi@xxxxxxxxxx>
Acked-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/scsi/qla2xxx/qla_target.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1403,7 +1403,7 @@ static void qlt_24xx_send_task_mgmt_ctio
ctio->u.status1.scsi_status =
ctio->u.status1.response_len = __constant_cpu_to_le16(8);
- ((uint32_t *)ctio->u.status1.sense_data)[0] = cpu_to_be32(resp_code);
+ ctio->u.status1.sense_data[0] = resp_code;

qla2x00_start_iocbs(ha, ha->req);

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