Re: [PATCH -tip] x86: kvm/paging_tmpl.h intialize the variable beforeusing it

From: Avi Kivity
Date: Mon May 25 2009 - 01:22:48 EST

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.

I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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