linux-kernel - Re: Are Section mismatches out of control?

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Date:	Sat, 2 Feb 2008 01:01:17 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	Harvey Harrison <harvey.harrison@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux arch <linux-arch@...r.kernel.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>
Subject: Re: Are Section mismatches out of control?


On Feb 1 2008 23:40, Sam Ravnborg wrote:
>> 
>> checkpatch does not parse C, it uses heuristical regexes.
>> 
>> That makes it very different from sparse or the section mismatch
>> finder which do not output false positives.
>
>Unfortunately I most correct you. Section mismatch checks seldoms finds
>what I would call 'real' bugs that causes oops - but it happen.
>It is mostly fasle positives that needs workaround, but also a great
>deal of missing annotation resulting in additional memory saved.
>And then occasionally a bad reference in some error handling that
>seldom trigger but when it does it would oops.

What I meant with false positives:=
modpost warning about something that is not true.

I have not yet seen such happening where code is obviously correct
by the eyeball, but modpost gets it wrong.
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