linux-kernel - Re: [PATCH] scsi:NCR5380: remove same check condition in NCR5380

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Message-ID: <c99a75a2905c1eef50f94ccc0871c36af431e21a.camel@wdc.com>
Date:   Thu, 2 Aug 2018 03:26:09 +0000
From:   Bart Van Assche <Bart.VanAssche@....com>
To:     "jejb@...ux.vnet.ibm.com" <jejb@...ux.vnet.ibm.com>,
        "zhongjiang@...wei.com" <zhongjiang@...wei.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "fthain@...egraphics.com.au" <fthain@...egraphics.com.au>,
        "schmitzmic@...il.com" <schmitzmic@...il.com>
CC:     "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "john.garry@...wei.com" <john.garry@...wei.com>
Subject: Re: [PATCH] scsi:NCR5380: remove same check condition in
 NCR5380_select

On Thu, 2018-08-02 at 11:10 +0800, zhong jiang wrote:
> The same check condition is redundant, so remove one of them.
> 
> Signed-off-by: zhong jiang <zhongjiang@...wei.com>
> ---
>  drivers/scsi/NCR5380.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
> index 90ea0f5..2ecaf3f 100644
> --- a/drivers/scsi/NCR5380.c
> +++ b/drivers/scsi/NCR5380.c
> @@ -999,8 +999,7 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance,
>  
>  	/* Check for lost arbitration */
>  	if ((NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST) ||
> -	    (NCR5380_read(CURRENT_SCSI_DATA_REG) & hostdata->id_higher_mask) ||
> -	    (NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST)) {
> +	    (NCR5380_read(CURRENT_SCSI_DATA_REG) & hostdata->id_higher_mask)) {
>  		NCR5380_write(MODE_REG, MR_BASE);
>  		dsprintk(NDEBUG_ARBITRATION, instance, "lost arbitration, deasserting MR_ARBITRATE\n");
>  		spin_lock_irq(&hostdata->lock);

Has this patch been tested?

Thanks,

Bart.