linux-kernel - Re: [PATCH] checkpatch: fix perl warning about unescaped brace

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Date:	Fri, 29 Jul 2016 19:57:27 -0400
From:	Allen Hubbe <allenbh@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-kernel@...r.kernel.org, Andy Whitcroft <apw@...onical.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] checkpatch: fix perl warning about unescaped brace

This system has v5.22.1.  I don't know exactly how this perl was
configured.  I didn't see the warning on other systems.  Strangely, I
don't remember seeing it yesterday on this system, either.  I might
try to reproduce the warning on another system and let you know.  The
warning and this fix seem to be in line with the perl documentation,
though.

perl --version

This is perl 5, version 22, subversion 1 (v5.22.1) built for
x86_64-linux-thread-multi
(with 15 registered patches, see perl -V for more detail)

cat /etc/fedora-release
Fedora release 23 (Twenty Three)

On Fri, Jul 29, 2016 at 7:06 PM, Joe Perches <joe@...ches.com> wrote:
> On Fri, 2016-07-29 at 18:27 -0400, Allen Hubbe wrote:
>> Perl warns:
>>
>> Unescaped left brace in regex is deprecated, passed through in regex
>>
>> This is explained under "Quantifiers" in perl doc:
>> http://perldoc.perl.org/perlre.html#Quantifiers
>
> Hey Allen.
>
> I'm at 5.22 and don't see a warning.
> For what version of perl does this warning get generated?
> Only 5.24 and higher?
>