[PATCH 5.15 802/913] scsi: qla2xxx: Fix incorrect reporting of task management failure

From: Greg Kroah-Hartman
Date: Tue Apr 05 2022 - 18:11:04 EST

From: Quinn Tran <qutran@xxxxxxxxxxx>

commit 58ca5999e0367d131de82a75257fbfd5aed0195d upstream.

User experienced no task management error while target device is responding
with error. The RSP_CODE field in the status IOCB is in little endian.
Driver assumes it's big endian and it picked up erroneous data.

Convert the data back to big endian as is on the wire.

Link: https://lore.kernel.org/r/20220310092604.22950-2-njavali@xxxxxxxxxxx
Fixes: faef62d13463 ("[SCSI] qla2xxx: Fix Task Management command asynchronous handling")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
drivers/scsi/qla2xxx/qla_isr.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2494,6 +2494,7 @@ qla24xx_tm_iocb_entry(scsi_qla_host_t *v
iocb->u.tmf.data = QLA_FUNCTION_FAILED;
} else if ((le16_to_cpu(sts->scsi_status) &
+ host_to_fcp_swap(sts->data, sizeof(sts->data));
if (le32_to_cpu(sts->rsp_data_len) < 4) {
ql_log(ql_log_warn, fcport->vha, 0x503b,
"Async-%s error - hdl=%x not enough response(%d).\n",