linux-kernel - RE: [PATCH v16 1/2] scsi: ufs: Enable power management for wlun

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Date:   Thu, 08 Apr 2021 12:43:52 +0900
From:   Daejun Park <daejun7.park@...sung.com>
To:     "cang@...eaurora.org" <cang@...eaurora.org>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "adrian.hunter@...el.com" <adrian.hunter@...el.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
CC:     Asutosh Das <asutoshd@...eaurora.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        ALIM AKHTAR <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Pedro Sousa <pedrom.sousa@...opsys.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Bean Huo <beanhuo@...ron.com>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Yue Hu <huyue2@...ong.com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Dinghao Liu <dinghao.liu@....edu.cn>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Satya Tangirala <satyat@...gle.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v16 1/2] scsi: ufs: Enable power management for wlun

Hi Asutosh Das,

>+static inline bool is_rpmb_wlun(struct scsi_device *sdev)
>+{
>+        return (sdev->lun == ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_RPMB_WLUN));
>+}
>+
>+static inline bool is_device_wlun(struct scsi_device *sdev)
>+{
>+        return (sdev->lun ==
>+                ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_UFS_DEVICE_WLUN));
>+}
>+
> static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i)
> {
>         struct utp_transfer_cmd_desc *cmd_descp = hba->ucdl_base_addr;
>@@ -4099,11 +4113,11 @@ void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit)
>         spin_unlock_irqrestore(hba->host->host_lock, flags);
> 
>         if (update && !pm_runtime_suspended(hba->dev)) {

Could it be changed hba->sdev_ufs_device->sdev_gendev instead of hba->dev?

Thanks,
Daejun