linux-kernel - Re: [PATCH] update checkpatch.pl to version 0.10

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Message-Id: <200709281246.45546.borntraeger@de.ibm.com>
Date:	Fri, 28 Sep 2007 12:46:45 +0200
From:	Christian Borntraeger <borntraeger@...ibm.com>
To:	Andy Whitcroft <apw@...dowen.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Randy Dunlap <rdunlap@...otime.net>,
	Joel Schopp <jschopp@...tin.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] update checkpatch.pl to version 0.10

Am Freitag, 28. September 2007 schrieb Andy Whitcroft:
> > And this is not about any particular false positive. I dont mind an 
> > "advanced mode" non-default opt-in option for the script, if someone is 
> > interested in borderline or hard to judge warnings too, but these 
> > default false positives are _lethal_ for a tool like this. (and i made 
> > this point before.) This is a _fundamental_ thing, and i'm still not 
> > sure whether you accept and understand that point. This is very basic 
> > and very important, and this isnt the first (or second) time i raised 
> > this.
> 
> You are striving for a level of perfection that is simply not achieveable.

I dont think Ingo is looking for perfection. Its about a different 
optimization goals.

Let me put it this way:

checkpatch in advanced mode:
- I want to be able to see as many possible problems (this is the optimization 
goal)
- I accept that I get false positives
- not useful for git and mail traffic

checkpatch in safe mode:
- I never want a false positive (different optimization goal!)
- I accept that I will miss several real bugs because several tricky tests are 
disabled
- useful for git and mail traffic


Christian
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