linux-kernel - Re: [PATCH 02/18] EDAC/amd64: Remove scrub rate control for Family 17h and later

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Date:   Thu, 12 May 2022 14:19:48 +0000
From:   Yazen Ghannam <yazen.ghannam@....com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        Smita.KoralahalliChannabasappa@....com, muralidhara.mk@....com,
        naveenkrishna.chatradhi@....com
Subject: Re: [PATCH 02/18] EDAC/amd64: Remove scrub rate control for Family
 17h and later

On Wed, May 11, 2022 at 12:26:27PM +0200, Borislav Petkov wrote:
> On Mon, May 09, 2022 at 02:55:18PM +0000, Yazen Ghannam wrote:
> > @@ -251,6 +234,9 @@ static int set_scrub_rate(struct mem_ctl_info *mci, u32 bw)
> >  	struct amd64_pvt *pvt = mci->pvt_info;
> >  	u32 min_scrubrate = 0x5;
> >  
> > +	if (pvt->umc)
> > +		return -EPERM;
> 
> Since this function is testing families, it might be more
> straightforward for the check to be:
> 
> 	if (pvt->fam >= 0x17)
>

Yes, I'll make that change.

Thanks,
Yazen