linux-kernel - Re: [PATCH, v2] checkpatch: Warn on code with 6+ tab indentation, remove 80col warning

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Message-ID: <20120205113821.GA22399@elte.hu>
Date:	Sun, 5 Feb 2012 12:38:21 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Joe Perches <joe@...ches.com>
Cc:	Pekka Enberg <penberg@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Whitcroft <apw@...dowen.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	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>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Vasiliy Kulikov <segoon@...nwall.com>, Valdis.Kletnieks@...edu
Subject: Re: [PATCH, v2] checkpatch: Warn on code with 6+ tab indentation,
 remove 80col warning


* Joe Perches <joe@...ches.com> wrote:

> +		    $line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) {
> +			if ($length > $max_line_len_strict) {
> +				CHK("LONG_LINE",
> +				     "line over $max_line_len_strict characters\n" . $herecurr);
> +			}
> +			if ($length > $max_line_len_warn) {
> +				WARN("LONG_LINE",
> +				     "line over $max_line_len_warn characters\n" . $herecurr);
> +			}

In practice patch submitters take warnings just as seriously.
If it is emitted by the default checkpatch run, it's acted
upon. That is the human behavior that is a given.

If warnings are often crap and should not be acted upon then 
frankly, don't emit them by default.

I don't care *how* that warning is removed - whether it's 
removed from checkpatch or just hidden from the default view - 
but it needs to be removed or people like Pekka (or me) stop 
using it.

Thanks,

	Ingo
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