linux-kernel - Re: [PATCH] checkpatch: Warn on code with 6+ tab indentation

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Message-Id: <20120203173750.1ea9e7f0.akpm@linux-foundation.org>
Date:	Fri, 3 Feb 2012 17:37:50 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Joe Perches <joe@...ches.com>, Andy Whitcroft <apw@...dowen.org>,
	Ingo Molnar <mingo@...e.hu>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	linux-kernel@...r.kernel.org,
	Pavel Emelyanov <xemul@...allels.com>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Kees Cook <keescook@...omium.org>, Tejun Heo <tj@...nel.org>,
	Andrew Vagin <avagin@...nvz.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Glauber Costa <glommer@...allels.com>,
	Matt Helsley <matthltc@...ibm.com>,
	Pekka Enberg <penberg@...nel.org>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Vasiliy Kulikov <segoon@...nwall.com>, Valdis.Kletnieks@...edu
Subject: Re: [PATCH] checkpatch: Warn on code with 6+ tab indentation

On Fri, 3 Feb 2012 17:27:36 -0800 Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> On Fri, Feb 3, 2012 at 3:20 PM, Joe Perches <joe@...ches.com> wrote:
> > Overly indented code should be refactored.
> >
> > Suggest refactoring excessive indentation of
> > of if/else/for/do/while/switch statements.
> 
> I hate this patch.
> 
> Why? Because mindless checks like this would just lead to people
> making things worse and intermixing spaces there instead.
> 
> That's the same reason the 80-character check has been a total
> disaster. People shut it up by splitting long strings etc, and we've
> had to change that 80-character test many times just to avoid the
> crazy workarounds.
> 
> Don't warn about things that will just result in people working around
> the warnings with worse code!
> 

Sampling bias ;) You notice the 80-col fixups which resulted in
poor-looking code and not the fixups which resulted in decent-looking
code.

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