linux-kernel - RE: [EXT] [PATCH v2 1/5] scsi: ufs: Allow UFS 3.0 as a valid version

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Date:   Wed, 29 Apr 2020 12:59:08 +0000
From:   "Bean Huo (beanhuo)" <beanhuo@...ron.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
CC:     Joao Pinto <Joao.Pinto@...opsys.com>,
        Joao Lima <Joao.Lima@...opsys.com>,
        "Alim Akhtar" <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [EXT] [PATCH v2 1/5] scsi: ufs: Allow UFS 3.0 as a valid version

> > > @@ -8441,7 +8441,8 @@ int ufshcd_init(struct ufs_hba *hba, void
> > > __iomem *mmio_base, unsigned int irq)
> > >  	if ((hba->ufs_version != UFSHCI_VERSION_10) &&
> > >  	    (hba->ufs_version != UFSHCI_VERSION_11) &&
> > >  	    (hba->ufs_version != UFSHCI_VERSION_20) &&
> > > -	    (hba->ufs_version != UFSHCI_VERSION_21))
> > > +	    (hba->ufs_version != UFSHCI_VERSION_21) &&
> > > +	    (hba->ufs_version != UFSHCI_VERSION_30))
> >
> > I don't think these checkups of UFSHCI version is necessary,  does the UFSHCI
> have other version number except these?
> > Is there somebody still v1.0 and v1.1?
> 
> Probably. I think we can leave them or change the dev_err to a dev_warn.
> This way we have logs in case someone is using a non-supported version.
> 
> What do you think ?
> 
Hi, Jose
Seems after your patch, all of current released UFS control versions will be supported except the
version suffix is non-zero. Right?

> ---
> Thanks,
> Jose Miguel Abreu