Re: [PATCH v4 1/7] scsi: ufs: wb: Move ufshcd_is_wb_allowed() to callee

[Bean Huo]

On Wed, 2022-07-27 at 16:04 +0900, Jinyoung CHOI wrote:
> diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
> index 8f11f118c30e..a3bdf9986511 100644
> --- a/drivers/ufs/core/ufshcd.c
> +++ b/drivers/ufs/core/ufshcd.c
> @@ -5722,6 +5722,9 @@ static int __ufshcd_wb_toggle(struct ufs_hba
> *hba, bool set, enum flag_idn idn)
>         enum query_opcode opcode = set ? UPIU_QUERY_OPCODE_SET_FLAG :
>                                    UPIU_QUERY_OPCODE_CLEAR_FLAG;
>  
> +       if (!ufshcd_is_wb_allowed(hba))
> +               return -EPERM;
> +
Hi J-young,

here you should change its return, Otherwise, there will be an fake
error printing:

        dev_err(hba->dev, "%s Write Booster %s failed %d\n",          
                        __func__, enable ? "enable" : "disable", ret);


Kind regards,
Bean