Re: [PATCH] qla2xxx: Fix endianness of task management response code

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>From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
>
>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).
>
>Cc: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
>Cc: Arun Easi <arun.easi@xxxxxxxxxx>
>Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
>---
> 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 5b30132..41b74ba 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 =
>           __constant_cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID);
>       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);
> }
>--
>1.7.10.4

Acked-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx>

Thanks,
~Saurav


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