linux-kernel - Re: [PATCH v2 04/10] drm/framebuffer: Use actual bpp for DRM_IOCTL_MODE

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Date:   Wed, 9 Mar 2022 13:53:25 +0100
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Sam Ravnborg <sam@...nborg.org>, Helge Deller <deller@....de>
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-m68k@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 04/10] drm/framebuffer: Use actual bpp for
 DRM_IOCTL_MODE_GETFB

On 3/7/22 21:52, Geert Uytterhoeven wrote:
> When userspace queries the properties of a frame buffer, the number of
> bits per pixel is derived from the deprecated drm_format_info.cpp[]
> field, which does not take into account block sizes.
> 
> Fix this by using the actual number of bits per pixel instead.
> 
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> ---

Reviewed-by: Javier Martinez Canillas <javierm@...hat.com>

-- 
Best regards,

Javier Martinez Canillas
Linux Engineering
Red Hat