linux-kernel - Re: [PATCH] mm, compaction: using uninitialized_var insteads setting 'flags' to 0 directly.

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Message-ID: <alpine.DEB.2.02.1410011314180.21593@chino.kir.corp.google.com>
Date:	Wed, 1 Oct 2014 13:16:33 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Vlastimil Babka <vbabka@...e.cz>
cc:	Xiubo Li <Li.Xiubo@...escale.com>, akpm@...ux-foundation.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org, mgorman@...e.de,
	minchan@...nel.org
Subject: Re: [PATCH] mm, compaction: using uninitialized_var insteads setting
 'flags' to 0 directly.

On Tue, 30 Sep 2014, Vlastimil Babka wrote:

> On 09/29/2014 05:30 AM, Xiubo Li wrote:
> > Setting 'flags' to zero will be certainly a misleading way to avoid
> > warning of 'flags' may be used uninitialized. uninitialized_var is
> > a correct way because the warning is a false possitive.
> 
> Agree.
> 
> > Signed-off-by: Xiubo Li <Li.Xiubo@...escale.com>
> 
> Acked-by: Vlastimil Babka <vbabka@...e.cz>
> 

I thought we just discussed this when 
mm-compaction-fix-warning-of-flags-may-be-used-uninitialized.patch was 
merged and, although I liked it, it was stated that we shouldn't add any 
new users of uninitialized_var().
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