linux-kernel - Re: checkpatch: support deprecated terms checking

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Date:   Sun, 26 Jul 2020 22:33:28 +0200
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     SeongJae Park <sj38.park@...il.com>
Cc:     Joe Perches <joe@...ches.com>, SeongJae Park <sjpark@...zon.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, apw@...onical.com,
        colin.king@...onical.com, jslaby@...e.cz, pavel@....cz,
        SeongJae Park <sjpark@...zon.de>
Subject: Re: checkpatch: support deprecated terms checking

On Sun, Jul 26, 2020 at 08:07:48PM +0200, SeongJae Park wrote:
> On Sun, 26 Jul 2020 09:42:06 -0700 Joe Perches <joe@...ches.com> wrote:
> 
> > On Sun, 2020-07-26 at 17:36 +0200, SeongJae Park wrote:
> > > On Sun, 26 Jul 2020 07:50:54 -0700 Joe Perches <joe@...ches.com> wrote:
> > []
> > > > I do not want to encourage relatively inexperienced people
> > > > to run checkpatch and submit inappropriate patches.
> > > 
> > > Me, neither.  But, I think providing more warnings and references is better for
> > > that.
> > 
> > Unfortunately, the inexperienced _do_ in fact run
> > checkpatch on files and submit inappropriate patches.
> > 
> > It's generally a time sink for the experienced
> > maintainers to reply.
> > 
> > > Simply limiting checks could allow people submitting inappropriate patches
> > > intorducing new uses of deprecated terms.
> > 
> > Tradeoffs...
> > 
> > I expect that patches being reviewed by maintainers
> > are preferred over files being inappropriately changed
> > by the inexperienced.
> > 
> > Those inappropriate changes should not be encouraged
> > by tools placed in the hands of the inexperienced.
> 
> Right, many things are tradeoff.  Seems we arrived in the point, though we
> still have different opinions.  To summarize the pros and cons of my patch from
> my perspective:
> 
> Pros 1: Handle future terms deprecated with different reasons and coverages.
> Pros 2: Inappropriate patches are avoided if the submitters carefully read the
> warning messages.
> Cons: Careless people could still bother maintainers by not carefully reading
> the message and sending inappropriate patches.
> 
> To me, the pros still seems larger than the cons.  I would like to also again
> mention that the maintainer who first reported the problem, Michal, told it's
> ok with the explicit messaging.  Nonethelss, this is just my opinion.
> 
> Attaching the patch addressing your comments for the previous version.  The
> changes from the previous version are:
> 
>  - Make the name of reported terms not too verbose
>  - Avoid unnecessary initialization of the reported terms hash
>  - Warn multiple deprecated terms in same line

Hi,

Maybe you could split the meaning of --subjective and --strict, and
enable those checks only for --subjective? The test is really hard to do
right: you would have to consider the context and not only mere occurrence
of a word (heh, I even wrote 'blacklisted' here, since it really is about
a night/danger analogy and not political/ethical one).

Best Regards,
Michał Mirosław