Re: [PATCH] SubmittingPatches: Increase the line length limit from 80 to 100 colums

From: Joe Perches <joe@perches.com>
To: Jan Engelhardt <jengelh@medozas.de>, Andy Whitcroft <apw@shadowen.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Cyrill Gorcunov <gorcunov@openvz.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Pavel Emelyanov <xemul@parallels.com>,
	Serge Hallyn <serge.hallyn@canonical.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Kees Cook <keescook@chromium.org>, Tejun Heo <tj@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH] SubmittingPatches: Increase the line length limit from 80 to 100 colums
Date: Thu, 09 Feb 2012 14:09:17 -0800	[thread overview]
Message-ID: <1328825357.29329.16.camel@joe2Laptop> (raw)
In-Reply-To: <alpine.LNX.2.01.1202092206040.11004@frira.zrqbmnf.qr>

On Thu, 2012-02-09 at 22:55 +0100, Jan Engelhardt wrote:
> I am throwing in the suggestion to augment checkpatch 
> such that it does not look at whether single lines are over $limit, but 
> whether a certain percentage of lines of a file is over $limit. That, 
> together with a badness value that is e.g. following some power law to 
> the amount of chars too much, but not when the line cannot be broken
> in the first place. Maybe along the lines of
> 
>  #perlish#
>  foreach (<>) {
>      /^\s+\S+/;
>      if (length($_) > length($&)) {
>          push @candidate, $_;
>          $badness += (length($_) - length($&)) ** 1.5;
>      }
>  }
>  if ($badness > $threshold) {
>      warn about @candidate_lines;
>  }

I'd be OK with something like this while making the
current line length check a --strict only option.