linux-kernel - Re: [PATCH v25 4/4] scsi: ufs: Add HPB 2.0 support

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Date:   Tue, 02 Mar 2021 15:27:01 +0100
From:   Bean Huo <huobean@...il.com>
To:     daejun7.park@...sung.com, Greg KH <gregkh@...uxfoundation.org>,
        "avri.altman@....com" <avri.altman@....com>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "cang@...eaurora.org" <cang@...eaurora.org>,
        "bvanassche@....org" <bvanassche@....org>,
        ALIM AKHTAR <alim.akhtar@...sung.com>,
        Javier Gonzalez <javier.gonz@...sung.com>
Cc:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        JinHwan Park <jh.i.park@...sung.com>,
        SEUNGUK SHIN <seunguk.shin@...sung.com>,
        Sung-Jun Park <sungjun07.park@...sung.com>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Jinyoung CHOI <j-young.choi@...sung.com>,
        BoRam Shin <boram.shin@...sung.com>
Subject: Re: [PATCH v25 4/4] scsi: ufs: Add HPB 2.0 support

On Fri, 2021-02-26 at 16:35 +0900, Daejun Park wrote:
> +
> +/*
> + * In this driver, WRITE_BUFFER CMD support 36KB (len=9) ~ 512KB
> (len=128) as
> + * default. It is possible to change range of transfer_len through
> sysfs.
> + */
> +static inline bool ufshpb_is_required_wb(struct ufshpb_lu *hpb, int
> len)
> +{
> +       return (len >= hpb->pre_req_min_tr_len &&

Here is wrong, should be : len > hpb->pre_req_min_tr_len.


Bean

> +               len <= hpb->pre_req_max_tr_len);
>  }