linux-kernel - Re: [PATCH -tip] x86: kvm/paging_tmpl.h intialize the variable before using it

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Date:	Mon, 25 May 2009 11:07:32 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Avi Kivity <avi@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -tip] x86: kvm/paging_tmpl.h intialize the variable
 before using it

On Mon, 2009-05-25 at 08:21 +0300, Avi Kivity wrote:
> Jaswinder Singh Rajput wrote:
> >> It's a false alarm.  Isn't there a macro to shut up the warning?
> >>
> >>     
> >
> > In arch/x86/kvm/paging_tmpl.h sptep is initialize only in :
> >
> > for_each_shadow_entry(vcpu, addr, iterator) {
> >
> > If we skip this, then we end up with wild sptep and returning it.
> >
> > Do you still think it is a false alarm ?
> >   
> 
> That loop always has at least one iteration.
> 

hmm, In that case we should use a do-while flavor function so that the
compiler will also happy with it.

--
JSR

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