linux-kernel - Re: [PATCH] x86: !x & y typo in mtrr code

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Message-ID: <20080430064603.GA3602@atjola.homenet>
Date:	Wed, 30 Apr 2008 08:46:03 +0200
From:	Björn Steinbrink <B.Steinbrink@....de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Al Viro <viro@...IV.linux.org.uk>,
	Harvey Harrison <harvey.harrison@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
Subject: Re: [PATCH] x86: !x & y typo in mtrr code

On 2008.04.29 23:04:35 +0200, Ingo Molnar wrote:
> 
> * Al Viro <viro@...IV.linux.org.uk> wrote:
> 
> > On Sat, Apr 26, 2008 at 09:00:17PM -0700, Harvey Harrison wrote:
> > > As written, this can never be true.
> > 
> > ... and introduced through x86.git, of all things...  May I suggest 
> > that in addition to all-important whitespace hunting something that 
> > catches lowly real bugs would also be run over that tree?  sparse 
> > *does* catch that...
> 
> firstly, it _was_ caught via Sparse, ...

But that is exactly Al's point. Had you run sparse over your tree
_before_ it got pulled by Linus, that bug should have never made it into
mainline.

Björn
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