linux-kernel - Re: [PATCH] x86: powernow-k8: ignore out-of-range PstateStatus value

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Message-ID: <20081121131609.GA10975@alberich.amd.com>
Date:	Fri, 21 Nov 2008 14:16:09 +0100
From:	Andreas Herrmann <andreas.herrmann3@....com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	cpufreq@...r.kernel.org, stable@...nel.org,
	"Langsdorf, Mark" <mark.langsdorf@....com>,
	linux-kernel@...r.kernel.org, davej@...hat.com
Subject: Re: [PATCH] x86: powernow-k8: ignore out-of-range PstateStatus
	value

On Fri, Nov 21, 2008 at 09:23:46AM +0100, Ingo Molnar wrote:
> 
> nice fix! A few minor nits:
> 
> > +			/* a workaround for family 11h erratum 311 might cause
> > +			   an "out-of-range Pstate if the core is in Pstate-0 */

> Please use the customary comment style:
>   /*
>    * Comment .....
>    * ...... goes here:
>    */

I don't prefer that style -- but if you do.

> and since it's multi-line anyway, keep to the 80-col limit too please.

2nd line should be exactly 80 columns.

> > diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
> > index ab48cfe..4078f5d 100644
> > --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
> > +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
> > @@ -23,7 +23,9 @@ struct powernow_k8_data {
> >          u32 exttype; /* extended interface = 1 */
> >  
> >  	/* keep track of the current fid / vid or pstate */
> > -	u32 currvid, currfid, currpstate;
> > +	u32 currvid, currfid;
> > +	u32 currpstate;
> 
> Any reason why it has been moved to a separate line?

Sure, it's to emphasize that the following define is just for this field.


Andreas


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