linux-kernel - Re: [PATCH] checkpatch.pl: Add warning for harmful goto labels

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Message-ID: <20150321220902.GB14583@bart.evergreen.loc>
Date:	Sat, 21 Mar 2015 23:09:02 +0100
From:	L. Alberto Giménez <agimenez@...valve.es>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	linux-kernel@...r.kernel.org, Andy Whitcroft <apw@...onical.com>,
	Joe Perches <joe@...ches.com>
Subject: Re: [PATCH] checkpatch.pl: Add warning for harmful goto labels

On Sat, Mar 21, 2015 at 05:41:04PM -0400, Peter Hurley wrote:
> Hi Alberto,
> 
> On 03/21/2015 05:16 PM, L. Alberto Giménez wrote:
> > Issue a warning for too broad goto labels that may make the code to
> > follow the wrong exit path, thus causing hard to debug bugs.
> 
> What compiler allowed duplicate goto labels?

Humans are bad at following code paths, and making modifications to such
code may lead to errors if the code is not descriptive enough, please
check my reply to Richard for an explanation.

Regards,
-- 
L. Alberto Giménez
GnuPG key ID 0xDD4E27AB
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