linux-kernel - Re: [PATCH] kvm: Fix build warnings

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Date:	Tue, 31 May 2011 11:20:55 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Borislav Petkov <bp@...en8.de>,
	Marcelo Tosatti <mtosatti@...hat.com>, kvm@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Takuya Yoshikawa <yoshikawa.takuya@....ntt.co.jp>
Subject: Re: [PATCH] kvm: Fix build warnings

On 05/31/2011 10:38 AM, Ingo Molnar wrote:
> * Borislav Petkov<bp@...en8.de>  wrote:
>
> >  +++ b/arch/x86/kvm/paging_tmpl.h
> >  @@ -121,7 +121,7 @@ static int FNAME(walk_addr_generic)(struct guest_walker *walker,
> >   				gva_t addr, u32 access)
> >   {
> >   	pt_element_t pte;
> >  -	pt_element_t __user *ptep_user;
> >  +	pt_element_t __user *uninitialized_var(ptep_user);
>
> Note that doing this is actually actively dangerous for two reasons.
>
>

<snip lots of good advice>

> Please fix it instead.

s/instead/in addition/; while all those changes are good, they are much 
too large for 3.0.  Let's push the simple fix for 3.0 and queue the 
bigger refactoring to 3.1.

-- 
error compiling committee.c: too many arguments to function

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