Re: [PATCH] [v2] drm/sun4i: fix build failure with CONFIG_DRM_SUN8I_MIXER=m

From: Maxime Ripard
Date: Wed Jul 11 2018 - 04:15:52 EST


On Mon, Jul 09, 2018 at 06:05:55PM +0200, Arnd Bergmann wrote:
> Having DRM_SUN4I built-in but DRM_SUN8I_MIXER as a loadable module results in
> a link error, as we try to access a symbol from the sun8i_tcon_top.ko module:
>
> ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun8i-drm-hdmi.ko] undefined!
> ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-drm.ko] undefined!
>
> This solves the problem by adding a silent symbol for the tcon_top module,
> building it as a separate module in exactly the cases that we need it,
> but in a way that it is reachable by the other modules.
>
> Fixes: 57e23de02f48 ("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs")
> Fixes: ef0cf6441fbb ("drm/sun4i: Add support for traversing graph with TCON TOP")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied, thanks!
Maxime

--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

Attachment: signature.asc
Description: PGP signature