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 [213.165.67.108]) with ESMTPSA (Nemesis) id 0LxaUl-1hx1Rr1QEt-017Ec9; Sat, 19
 Oct 2019 16:06:56 +0200
Subject: Re: coccinelle: api/devm_platform_ioremap_resource: remove useless
 script
To:     Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Himanshu Jha <himanshujha199640@gmail.com>,
        kernel-janitors@vger.kernel.org,
        Coccinelle <cocci@systeme.lip6.fr>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc:     Julia Lawall <Julia.Lawall@lip6.fr>, Arnd Bergmann <arnd@arndb.de>,
        Marc Zyngier <maz@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Linus Torvalds <torvalds@linuxfoundation.org>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Gilles Muller <Gilles.Muller@lip6.fr>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Michal Marek <michal.lkml@markovi.net>,
        Nicolas Palix <nicolas.palix@imag.fr>,
        YueHaibing <yuehaibing@huawei.com>,
        LKML <linux-kernel@vger.kernel.org>
References: <20191017142237.9734-1-alexandre.belloni@bootlin.com>
 <81269cd6-e26d-b8aa-cf17-3a2285851564@web.de>
 <20191019120941.GL3125@piout.net>
From:   Markus Elfring <Markus.Elfring@web.de>
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Date:   Sat, 19 Oct 2019 16:06:52 +0200
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> What are the additional effects?

I suggest to take another look at the commit 7945f929f1a77a1c8887a97ca07f8=
7626858ff42
("drivers: provide devm_platform_ioremap_resource()" from 2019-02-20)
which triggered the discussed software evolution.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/dri=
vers/base/platform.c


> What is the end goal of converting all the existing drivers to devm_plat=
form_ioremap_resource?

It was accepted by well-known Linux developers to put two function calls
into another wrapper function.


> This is not an evolution, it is unnecessary churn. Those patches have no
> benefit and eat up very valuable reviewer time.

I am curious if other contributors would like to describe more variants
of software development opinions in affected areas.


>> How will such feedback influence the development and integration of
>> further scripts for the semantic patch language (Coccinelle software)?
>
> There are a few other scripts that have no added value when applied to
> existing code, like ptr_ret.cocci.

Would you like to clarify concerns around such source code transformation
approaches in more detail?

Regards,
Markus