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Message-ID: <360e6b66-30f6-5c54-c03f-b5d267f6703a@acm.org>
Date:   Fri, 29 Jul 2022 13:16:33 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     j-young.choi@...sung.com, ALIM AKHTAR <alim.akhtar@...sung.com>,
        "avri.altman@....com" <avri.altman@....com>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "adrian.hunter@...el.com" <adrian.hunter@...el.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 1/6] scsi: ufs: wb: Change wb_enabled condition test

On 7/28/22 21:52, Jinyoung CHOI wrote:
> Changed to improve readability.
> As implemented in ufshcd_wb_togle_flush(), the conditional test is
> modified in the same way.
> 
> Reviewed-by: Avri Altman <avri.altman@....com>
> Reviewed-by: Bean Huo <beanhuo@...ron.com>
> Signed-off-by: Jinyoung Choi <j-young.choi@...sung.com>
> ---
>   drivers/ufs/core/ufshcd.c | 6 ++----
>   1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 8f11f118c30e..bbf12aa6a5ae 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -5730,10 +5730,8 @@ int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable)
>   {
>   	int ret;
>   
> -	if (!ufshcd_is_wb_allowed(hba))
> -		return 0;
> -
> -	if (!(enable ^ hba->dev_info.wb_enabled))
> +	if (!ufshcd_is_wb_allowed(hba) ||
> +	    hba->dev_info.wb_enabled == enable)
>   		return 0;
>   
>   	ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_EN);

Reviewed-by: Bart Van Assche <bvanassche@....org>

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