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Subject: Re: [PATCH v24 1/4] scsi: ufs: Introduce HPB feature
From:   Bean Huo <huobean@gmail.com>
To:     daejun7.park@samsung.com, Greg KH <gregkh@linuxfoundation.org>,
        "avri.altman@wdc.com" <avri.altman@wdc.com>,
        "jejb@linux.ibm.com" <jejb@linux.ibm.com>,
        "martin.petersen@oracle.com" <martin.petersen@oracle.com>,
        "asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
        "stanley.chu@mediatek.com" <stanley.chu@mediatek.com>,
        "cang@codeaurora.org" <cang@codeaurora.org>,
        "bvanassche@acm.org" <bvanassche@acm.org>,
        ALIM AKHTAR <alim.akhtar@samsung.com>
Cc:     "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        JinHwan Park <jh.i.park@samsung.com>,
        Javier Gonzalez <javier.gonz@samsung.com>,
        SEUNGUK SHIN <seunguk.shin@samsung.com>,
        Sung-Jun Park <sungjun07.park@samsung.com>,
        yongmyung lee <ymhungry.lee@samsung.com>,
        Jinyoung CHOI <j-young.choi@samsung.com>,
        BoRam Shin <boram.shin@samsung.com>
Date:   Thu, 25 Feb 2021 15:38:12 +0100
In-Reply-To: <20210224045405epcms2p2d05f8563b1f121d2c2cc79b343e5af77@epcms2p2>
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On Wed, 2021-02-24 at 13:54 +0900, Daejun Park wrote:
> 
> +void ufshpb_init(struct ufs_hba *hba)
> +{
> +	struct ufshpb_dev_info *hpb_dev_info = &hba->ufshpb_dev;
> +	int try;
> +	int ret;
> +
> +	if (!ufshpb_is_allowed(hba))
> +		return;
> +

Here it is better to check "dev_info->hpb_enable", if HPB is not
enabled from UFS device level,  doesn't need to create mempool and take
other memory resource.

Bean