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Message-ID: <1210830415.21592275802431.JavaMail.epsvc@epcpadp1>
Date:   Tue, 16 Jun 2020 10:18:42 +0900
From:   Daejun Park <daejun7.park@...sung.com>
To:     Bean Huo <huobean@...il.com>,
        Daejun Park <daejun7.park@...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>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "cang@...eaurora.org" <cang@...eaurora.org>,
        "bvanassche@....org" <bvanassche@....org>,
        "tomas.winkler@...el.com" <tomas.winkler@...el.com>
CC:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sang-yoon Oh <sangyoon.oh@...sung.com>,
        Sung-Jun Park <sungjun07.park@...sung.com>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Jinyoung CHOI <j-young.choi@...sung.com>,
        Adel Choi <adel.choi@...sung.com>,
        BoRam Shin <boram.shin@...sung.com>
Subject: Re: [RFC PATCH v2 2/5] scsi: ufs: Add UFS-feature layer

Hi, Bean
> 
> On Mon, 2020-06-15 at 16:23 +0900, Daejun Park wrote:
> > +void ufsf_scan_features(struct ufs_hba *hba)
> > +{
> > +       int ret;
> > +
> > +       init_waitqueue_head(&hba->ufsf.sdev_wait);
> > +       atomic_set(&hba->ufsf.slave_conf_cnt, 0);
> > +
> > +       if (hba->dev_info.wspecversion >= HPB_SUPPORTED_VERSION &&
> > +           (hba->dev_info.b_ufs_feature_sup & UFS_DEV_HPB_SUPPORT)) 
> 
> How about removing this check "(hba->dev_info.wspecversion >=
> HPB_SUPPORTED_VERSION" since ufs with lower version than v3.1 can add
> HPB feature by FFU, 
> if (hba->dev_info.b_ufs_feature_sup  &UFS_FEATURE_SUPPORT_HPB_BIT) is
> enough.
OK, changing it seems no problem. But I want to know what other people think
about this version checking code.

Thanks,
Daejun

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