linux-kernel - Re: [PATCH] video: backlight: remove unused header

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Message-ID: <4FE77FAD.1020103@gmx.de>
Date:	Sun, 24 Jun 2012 20:59:25 +0000
From:	Florian Tobias Schandinat <FlorianSchandinat@....de>
To:	Paul Bolle <pebolle@...cali.nl>
CC:	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] video: backlight: remove unused header

On 06/13/2012 07:47 AM, Paul Bolle wrote:
> Commit 9befe40f6e018e508b047eb76d189ede9b4ff03d ("video: backlight:
> support s6e8ax0 panel driver based on MIPI DSI") added s6e8ax0.h, but
> no file includes it. That's probably a good thing, because it declares
> an extern void function that is defined static int in s6e8ax0.c.
> Besides, that function is also wrapped in the module_init() macro, which
> should do everything needed to make that function available to the code
> outside of s6e8ax0.c. This header can safely be removed.
> 
> Signed-off-by: Paul Bolle <pebolle@...cali.nl>

Applied.


Thanks,

Florian Tobias Schandinat

> ---
> 0) Tested mainly by using various git tools on the (history of the)
> tree.
> 
> 1) Shouldn't s6e8ax0_init() and s6e8ax0_exit(), both in s6e8ax0.c, carry
> the usual __init and __exit attributes?
> 
> 2) But note that all the module related code in s6e8ax0.c seems moot
> currently: EXYNOS_LCD_S6E8AX0 is a boolean Kconfig symbol, so the code
> can only be used builtin. So, as far as I can tell, either that symbol
> (and the symbols on which it depends) should be made tristate, or the
> module related code can be removed from s6e8ax0.c.
> 
>  drivers/video/exynos/s6e8ax0.h |   21 ---------------------
>  1 files changed, 0 insertions(+), 21 deletions(-)
>  delete mode 100644 drivers/video/exynos/s6e8ax0.h
> 
> diff --git a/drivers/video/exynos/s6e8ax0.h b/drivers/video/exynos/s6e8ax0.h
> deleted file mode 100644
> index 1f1b270..0000000
> --- a/drivers/video/exynos/s6e8ax0.h
> +++ /dev/null
> @@ -1,21 +0,0 @@
> -/* linux/drivers/video/backlight/s6e8ax0.h
> - *
> - * MIPI-DSI based s6e8ax0 AMOLED LCD Panel definitions.
> - *
> - * Copyright (c) 2011 Samsung Electronics
> - *
> - * Inki Dae, <inki.dae@...sung.com>
> - * Donghwa Lee <dh09.lee@...sung.com>
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License version 2 as
> - * published by the Free Software Foundation.
> -*/
> -
> -#ifndef _S6E8AX0_H
> -#define _S6E8AX0_H
> -
> -extern void s6e8ax0_init(void);
> -
> -#endif
> -

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