linux-kernel - Re: [RESENT PATCH RFC v3 3/5] scsi: ufs: add ufs_features parameter in structure ufs_dev

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Date:   Thu, 7 May 2020 18:02:35 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     huobean@...il.com, alim.akhtar@...sung.com, avri.altman@....com,
        asutoshd@...eaurora.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, stanley.chu@...iatek.com,
        beanhuo@...ron.com, tomas.winkler@...el.com, cang@...eaurora.org,
        rdunlap@...radead.org
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        hch@...radead.org
Subject: Re: [RESENT PATCH RFC v3 3/5] scsi: ufs: add ufs_features parameter
 in structure ufs_dev_info

On 2020-05-04 07:20, huobean@...il.com wrote:
> From: Bean Huo <beanhuo@...ron.com>
> 
> Make a copy of bUFSFeaturesSupport, name it ufs_features, add it
> to structure ufs_dev_info.
> 
> Signed-off-by: Bean Huo <beanhuo@...ron.com>
> ---
>  drivers/scsi/ufs/ufs.h    | 2 ++
>  drivers/scsi/ufs/ufshcd.c | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
> index 53a5e263f7c8..1f2d4b4950b8 100644
> --- a/drivers/scsi/ufs/ufs.h
> +++ b/drivers/scsi/ufs/ufs.h
> @@ -543,6 +543,8 @@ struct ufs_dev_info {
>  	u16 hpb_ver;
>  	/* bHPBControl */
>  	u8 hpb_control_mode;
> +	/* bUFSFeaturesSupport */
> +	u8 ufs_features;
>  };
>  
>  /**
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 83ed2879d930..1fe7ffc1a75a 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -6625,6 +6625,8 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
>  		goto out;
>  	}
>  
> +	dev_info->ufs_features = desc_buf[DEVICE_DESC_PARAM_UFS_FEAT];
> +
>  	if (desc_buf[DEVICE_DESC_PARAM_UFS_FEAT] & 0x80) {
>  		hba->dev_info.hpb_control_mode =
>  			desc_buf[DEVICE_DESC_PARAM_HPB_CTRL_MODE];

Since this patch touches the same code as patch 1/5, please merge
patches 1/5 and 3/5 into a single patch.

Thanks,

Bart.