[033/270] qla2xxx: Fix endianness of task management response code

Message ID 1353949160-26803-34-git-send-email-herton.krzesinski@canonical.com
State New
Headers show

Commit Message

Herton Ronaldo Krzesinski Nov. 26, 2012, 4:55 p.m.
3.5.7u1 -stable review patch.  If anyone has any objections, please let me know.


From: Roland Dreier <roland@purestorage.com>

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@purestorage.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
 drivers/scsi/qla2xxx/qla_target.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 77759c7..5a71e84 100644
--- 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(struct scsi_qla_host *ha,
 	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);