linux-kernel - RE: [PATCH 1/8] scsi: ufshpb: Cache HPB Control mode on init

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Message-ID: <DM6PR04MB65756785F53B6D9FDE581013FCB79@DM6PR04MB6575.namprd04.prod.outlook.com>
Date:   Sun, 31 Jan 2021 07:08:00 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Bart Van Assche <bvanassche@....org>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Daejun Park <daejun7.park@...sung.com>,
        "alim.akhtar@...sung.com" <alim.akhtar@...sung.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        Zang Leigang <zangleigang@...ilicon.com>,
        Avi Shchislowski <Avi.Shchislowski@....com>,
        Bean Huo <beanhuo@...ron.com>,
        "cang@...eaurora.org" <cang@...eaurora.org>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>
Subject: RE: [PATCH 1/8] scsi: ufshpb: Cache HPB Control mode on init

> >
> > +static enum UFSHPB_MODE ufshpb_mode;
> 
> How are you allowed to have a single variable for a device-specific
> thing?  What happens when you have two controllers or disks or whatever
> you are binding to here?  How does this work at all?
> 
> This should be per-device, right?
Right. Done.

Not being bickering,  AFAIK, there aren't, nor will be in the foreseen future, any multi-ufs-hosts designs.
There were some talks in the past about ufs cards, but this is officially off the table.

Thanks,
Avri