linux-kernel - Re: [PATCH v2 1/2] include: linux: siox: more for declaring siox drivers

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Message-ID: <20190618161747.65y52fqr6toavdtb@pengutronix.de>
Date:   Tue, 18 Jun 2019 18:17:47 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     "Enrico Weigelt, metux IT consult" <info@...ux.net>
Cc:     linux-kernel@...r.kernel.org, bgolaszewski@...libre.com,
        linus.walleij@...aro.org, kernel@...gutronix.de,
        linux-gpio@...r.kernel.org, t.scherer@...elmann.de
Subject: Re: [PATCH v2 1/2] include: linux: siox: more for declaring siox
 drivers

Hello,

Cc: += Thorsten Scherer

On Tue, Jun 18, 2019 at 12:40:26PM +0200, Enrico Weigelt, metux IT consult wrote:
> From: Enrico Weigelt <info@...ux.net>
> 
> Add more helper macros for trivial driver init cases, similar to the
> already existing module_platform_driver() or module_i2c_driver().
> 
> This helps to reduce driver init boilerplate.
> 
> Signed-off-by: Enrico Weigelt <info@...ux.net>

I like the change. Just noticed that the Subject line is a bit strange
though. if "more for" is proper English then it's news to me. I'd write:

	siox: add helper macro to simplify driver registration

> ---
>  include/linux/siox.h | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/include/linux/siox.h b/include/linux/siox.h
> index d79624e..d53b2b2 100644
> --- a/include/linux/siox.h
> +++ b/include/linux/siox.h
> @@ -75,3 +75,12 @@ static inline void siox_driver_unregister(struct siox_driver *sdriver)
>  {
>  	return driver_unregister(&sdriver->driver);
>  }
> +
> +/* module_siox_driver() - Helper macro for drivers that don't do

I'd prefer /* on a separate line as documented in
Documentation/process/coding-style.rst (for non-net code).

> + * anything special in module init/exit.  This eliminates a lot of
> + * boilerplate.  Each module may only use this macro once, and
> + * calling it replaces module_init() and module_exit()
> + */
> +#define module_siox_driver(__siox_driver) \
> +	module_driver(__siox_driver, siox_driver_register, \
> +			siox_driver_unregister)
> -- 

Sorry I didn't notice these two things in the first round already.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |