linux-kernel - Re: [PATCH] kvm: fix maybe-uninitialized compiler warning

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Message-ID: <55EBEBAB.7020307@linux.intel.com>
Date:	Sun, 6 Sep 2015 15:30:51 +0800
From:	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
To:	Clemens Gruber <clemens.gruber@...ruber.com>, kvm@...r.kernel.org
Cc:	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kvm: fix maybe-uninitialized compiler warning



On 09/05/2015 05:07 AM, Clemens Gruber wrote:
> Fixes the following compiler warning, occuring with GCC 5.2.0:
>
> arch/x86/kvm/mmu.c: In function ‘handle_mmio_page_fault_common’:
> arch/x86/kvm/mmu.c:3332:9: warning: ‘leaf’ may be used uninitialized in
> this
> function [-Wmaybe-uninitialized]
>     while (root >= leaf) {
>           ^
> arch/x86/kvm/mmu.c:3304:12: note: ‘leaf’ was declared here
>    int root, leaf;
>

Clemens, this is a know issue, please refer to:
       https://lkml.org/lkml/2015/9/1/27
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