linux-kernel - Re: [PATCH] [media] rc/keymaps: Add helper macro for rc_map

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Message-ID: <20161118135257.23edbc4b@vento.lan>
Date:   Fri, 18 Nov 2016 13:52:57 -0200
From:   Mauro Carvalho Chehab <mchehab@....samsung.com>
To:     Vaishali Thakkar <vthakkar1994@...il.com>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] rc/keymaps: Add helper macro for rc_map_list
 boilerplate

Em Sat, 11 Jul 2015 08:47:37 +0530
Vaishali Thakkar <vthakkar1994@...il.com> escreveu:

> For simple modules that contain a single rc_map_list without any
> additional setup code then ends up being a block of duplicated
> boilerplate. This patch adds a new macro, module_rc_map_list(),
> which replaces the module_init()/module_exit() registrations with
> template functions.
> 
> Signed-off-by: Vaishali Thakkar <vthakkar1994@...il.com>
> ---
>  include/media/rc-map.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/include/media/rc-map.h b/include/media/rc-map.h
> index 27763d5..07e765d 100644
> --- a/include/media/rc-map.h
> +++ b/include/media/rc-map.h
> @@ -96,6 +96,16 @@ struct rc_map_list {
>  	struct rc_map map;
>  };
>  
> +/**
> + * module_rc_map_list() - Helper macro for registering a RC drivers
> + * @__rc_map_list: rc_map_list struct
> + * Helper macro for RC drivers which do not do 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_rc_map_list(__rc_map_list) \
> +	module_driver(__rc_map_list, rc_map_register, rc_map_unregister)
> +

What's the sense of adding it, if no driver is using the new macro?

It would make sense if you had sent it as part of a patch series
making it to be used by the existing drivers.

-- 
Thanks,
Mauro