linux-kernel - Re: [PATCH] powerpc: include linux/backlight.h from asm/backlight.h

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Message-ID: <87bk7u5n9h.fsf@intel.com>
Date: Mon, 04 Mar 2024 12:01:30 +0200
From: Jani Nikula <jani.nikula@...el.com>
To: Michael Ellerman <mpe@...erman.id.au>, linuxppc-dev@...ts.ozlabs.org
Cc: dri-devel@...ts.freedesktop.org, lkft-triage@...ts.linaro.org,
 linux-kernel@...r.kernel.org, Naresh
 Kamboju <naresh.kamboju@...aro.org>, Thomas Zimmermann
 <tzimmermann@...e.de>, Helge Deller <deller@....de>,
 linux-fbdev@...r.kernel.org
Subject: Re: [PATCH] powerpc: include linux/backlight.h from asm/backlight.h

On Mon, 04 Mar 2024, Jani Nikula <jani.nikula@...el.com> wrote:
> Removal of the backlight include from fb.h uncovered an implicit
> dependency in powerpc asm/backlight.h. Add the explicit include.
>
> Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>
> Closes: https://lore.kernel.org/r/CA+G9fYsAk5TbqqxFC2W4oHLGA0CbTHMxbeq8QayFXTU75YiueA@mail.gmail.com
> Fixes: 11b4eedfc87d ("fbdev: Do not include <linux/backlight.h> in header")
> Cc: Thomas Zimmermann <tzimmermann@...e.de>
> Cc: Helge Deller <deller@....de>
> Cc: linux-fbdev@...r.kernel.org
> Signed-off-by: Jani Nikula <jani.nikula@...el.com>
>
> ---
>
> Not even compile tested!

Naresh, please try this patch!

Michael, if this is fine by you, ack to merge via the drm subsystem
along with the regressing commit?

BR,
Jani.

> ---
>  arch/powerpc/include/asm/backlight.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/include/asm/backlight.h b/arch/powerpc/include/asm/backlight.h
> index 1b5eab62ed04..275d5bb9aa04 100644
> --- a/arch/powerpc/include/asm/backlight.h
> +++ b/arch/powerpc/include/asm/backlight.h
> @@ -10,6 +10,7 @@
>  #define __ASM_POWERPC_BACKLIGHT_H
>  #ifdef __KERNEL__
>  
> +#include <linux/backlight.h>
>  #include <linux/fb.h>
>  #include <linux/mutex.h>

-- 
Jani Nikula, Intel