linux-kernel - Re: [PATCH] scsi: qla2xxx: Correct setting of SAM_STAT_CHECK

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Date:   Mon, 9 Apr 2018 15:56:45 +0200
From:   Hannes Reinecke <hare@...e.de>
To:     Johannes Thumshirn <jthumshirn@...e.de>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>,
        Linux SCSI Mailinglist <linux-scsi@...r.kernel.org>,
        Bart Van Assche <Bart.VanAssche@...disk.com>,
        Himanshu Madhani <himanshu.madhani@...ium.com>
Subject: Re: [PATCH] scsi: qla2xxx: Correct setting of
 SAM_STAT_CHECK_CONDITION

On 04/09/2018 02:39 PM, Johannes Thumshirn wrote:
> Bart reports that in qla_isr.c's qla2x00_handle_dif_error we're
> wrongly shifting the SAM_STAT_CHECK_CONDITION by one instead of
> directly ORing it onto the SCSI command's result.
> 
> Signed-off-by: Johannes Thumshirn <jthumshirn@...e.de>
> Reported-by: Bart Van Assche <Bart.VanAssche@....com>
> Cc: Himanshu Madhani <himanshu.madhani@...ium.com>
> ---
>  drivers/scsi/qla2xxx/qla_isr.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
> index 49d67e1d571f..ed6cdfea00b4 100644
> --- a/drivers/scsi/qla2xxx/qla_isr.c
> +++ b/drivers/scsi/qla2xxx/qla_isr.c
> @@ -2195,7 +2195,7 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
>  		    0x10, 0x1);
>  		set_driver_byte(cmd, DRIVER_SENSE);
>  		set_host_byte(cmd, DID_ABORT);
> -		cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
> +		cmd->result |= SAM_STAT_CHECK_CONDITION;
>  		return 1;
>  	}
>  
> @@ -2205,7 +2205,7 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
>  		    0x10, 0x3);
>  		set_driver_byte(cmd, DRIVER_SENSE);
>  		set_host_byte(cmd, DID_ABORT);
> -		cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
> +		cmd->result |= SAM_STAT_CHECK_CONDITION;
>  		return 1;
>  	}
>  
> @@ -2215,7 +2215,7 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
>  		    0x10, 0x2);
>  		set_driver_byte(cmd, DRIVER_SENSE);
>  		set_host_byte(cmd, DID_ABORT);
> -		cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
> +		cmd->result |= SAM_STAT_CHECK_CONDITION;
>  		return 1;
>  	}
>  
> 
Reviewed-by: Hannes Reinecke <hare@...e.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@...e.de			               +49 911 74053 688
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