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Date:   Tue, 27 Sep 2022 07:07:27 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Joe Perches <joe@...ches.com>
Cc:     Andy Whitcroft <apw@...onical.com>, yashsri421@...il.com,
        Dwaipayan Ray <dwaipayanray1@...il.com>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] checkpatch: Don't count URLs for "line too long"

On Mon, Sep 26, 2022 at 10:40:50PM -0700, Joe Perches wrote:
> On Mon, 2022-09-26 at 19:15 -0700, Kees Cook wrote:
> > URLs (not in a Link: field) should be ignored for "line too long"
> > warnings. Allow any line containing "https://" or "http://".
> 
> More generally, this should be for any URI
> 
> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> []
> > @@ -3175,6 +3175,8 @@ sub process {
> >  					# file delta changes
> >  		      $line =~ /^\s*(?:[\w\.\-\+]*\/)++[\w\.\-\+]+:/ ||
> >  					# filename then :
> > +		      $line =~ /https?:\/\// ||
> > +					# URLs
> >  		      $line =~ /^\s*(?:Fixes:|Link:|$signature_tags)/i ||
> >  					# A Fixes: or Link: line or signature tag line
> >  		      $commit_log_possible_stack_dump)) {
> 
> And I don't recollect why this wasn't applied, but I think it's a rather better,
> more complete, patch:
> 
> https://lore.kernel.org/lkml/20210114073513.15773-2-yashsri421@gmail.com/
> 
> I believe I did ack it and forward it to Andrew Morton, but I don't
> see it on a lore list.

Many patches have internal references in the commit log (that aren't
appropriate for "Link:") like:

[1] https://some.domain/path/

It seems more flexible to just ignore lines with "http" in it...

-Kees

-- 
Kees Cook

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