linux-kernel - Re: [PATCH v2 5/6] drm: add drm_fb_xrgb8888_to_rgb888() function to drm_fb

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Date:   Thu, 4 Apr 2019 19:16:06 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Gerd Hoffmann <kraxel@...hat.com>
Cc:     dri-devel@...ts.freedesktop.org,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        open list <linux-kernel@...r.kernel.org>,
        David Airlie <airlied@...ux.ie>, Sean Paul <sean@...rly.run>
Subject: Re: [PATCH v2 5/6] drm: add drm_fb_xrgb8888_to_rgb888() function to
 drm_fb_helper.c

Hi Gerd.

On Thu, Apr 04, 2019 at 05:24:29PM +0200, Gerd Hoffmann wrote:
> Like drm_fb_xrgb8888_to_rgb565() but converts to 24bpp (DRM_FORMAT_RGB888).
> 
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
> ---
>  include/drm/drm_fb_helper.h     |  4 +++
>  drivers/gpu/drm/drm_fb_helper.c | 49 +++++++++++++++++++++++++++++++++
>  2 files changed, 53 insertions(+)
> 
> diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
> index 1406057e1a93..a6e56fcd948e 100644
> --- a/include/drm/drm_fb_helper.h
> +++ b/include/drm/drm_fb_helper.h
> @@ -648,5 +648,9 @@ void drm_fb_xrgb8888_to_rgb565(u16 *dst, void *vaddr,
>  			       struct drm_framebuffer *fb,
>  			       struct drm_rect *clip,
>  			       bool swap, bool dstclip);
> +void drm_fb_xrgb8888_to_rgb888(u8 *dst, void *vaddr,
> +			       struct drm_framebuffer *fb,
> +			       struct drm_rect *clip,
> +			       bool dstclip);
We have here three functions that take a *dst parameter:

	void *dst
	u8 *dst
	u16 *dst

My OCD triggers when things like this is not consistent.
But that said I see why the three implementations takes three different types.

Something I noticed, so passed in onwards to you.
Feel free to ignore.

	Sam