RE: [PATCH v2] drm: renesas: rz-du: Fix redefinition errors related to rzg2l_du_vsp_*()

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Hi Thomas Zimmermann,

> -----Original Message-----
> From: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Sent: Thursday, February 22, 2024 1:21 PM
> Subject: Re: [PATCH v2] drm: renesas: rz-du: Fix redefinition errors
> related to rzg2l_du_vsp_*()
> 
> Hi
> 
> Am 22.02.24 um 12:26 schrieb Biju Das:
> > CONFIG_DRM_RCAR_VSP is related to R-Car and not related to RZ/G2L
> > specific. This caused the below build issue. Fix this errors by
> > replacing CONFIG_DRM_RCAR_VSP->CONFIG_VIDEO_RENESAS_VSP1. While at it,
> > use
> > IS_ENABLED() macro.
> >
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c:47:6: error: redefinition
> of 'rzg2l_du_vsp_enable'
> >     47 | void rzg2l_du_vsp_enable(struct rzg2l_du_crtc *crtc)
> >        |      ^~~~~~~~~~~~~~~~~~~
> > In file included from drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h:18,
> >                   from drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c:30:
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h:72:20: note: previous
> definition of 'rzg2l_du_vsp_enable' with type 'void(struct rzg2l_du_crtc
> *)'
> >     72 | static inline void rzg2l_du_vsp_enable(struct rzg2l_du_crtc
> *crtc) { };
> >        |                    ^~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c:61:6: error: redefinition
> of 'rzg2l_du_vsp_disable'
> >     61 | void rzg2l_du_vsp_disable(struct rzg2l_du_crtc *crtc)
> >        |      ^~~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h:73:20: note: previous
> definition of 'rzg2l_du_vsp_disable' with type 'void(struct rzg2l_du_crtc
> *)'
> >     73 | static inline void rzg2l_du_vsp_disable(struct rzg2l_du_crtc
> *crtc) { };
> >        |                    ^~~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c:66:6: error: redefinition
> of 'rzg2l_du_vsp_atomic_flush'
> >     66 | void rzg2l_du_vsp_atomic_flush(struct rzg2l_du_crtc *crtc)
> >        |      ^~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h:74:20: note: previous
> definition of 'rzg2l_du_vsp_atomic_flush' with type 'void(struct
> rzg2l_du_crtc *)'
> >     74 | static inline void rzg2l_du_vsp_atomic_flush(struct
> rzg2l_du_crtc *crtc) { };
> >        |                    ^~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c:76:19: error: redefinition
> of 'rzg2l_du_vsp_get_drm_plane'
> >     76 | struct drm_plane *rzg2l_du_vsp_get_drm_plane(struct
> rzg2l_du_crtc *crtc,
> >        |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h:75:33: note: previous
> definition of 'rzg2l_du_vsp_get_drm_plane' with type 'struct drm_plane
> *(struct rzg2l_du_crtc *, unsigned int)'
> >     75 | static inline struct drm_plane
> *rzg2l_du_vsp_get_drm_plane(struct rzg2l_du_crtc *crtc,
> >        |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c:302:5: error: redefinition
> of 'rzg2l_du_vsp_init'
> >    302 | int rzg2l_du_vsp_init(struct rzg2l_du_vsp *vsp, struct
> device_node *np,
> >        |     ^~~~~~~~~~~~~~~~~
> > drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h:66:19: note: previous
> definition of 'rzg2l_du_vsp_init' with type 'int(struct rzg2l_du_vsp *,
> struct device_node *, unsigned int)'
> >     66 | static inline int rzg2l_du_vsp_init(struct rzg2l_du_vsp *vsp,
> struct device_node *np,
> >        |                   ^~~~~~~~~~~~~~~~~
> >
> > Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> > Closes:
> 
> Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> 
> I'm going to add
> 
> Fixes: 768e9e61b3b9 ("drm: renesas: Add RZ/G2L DU Support")
> 
> as well before merging the patch.

OK to me. I thought since it is landing on next, fixes tag is not
required. Fixes tag is required only when the patch is in a -rc series.

Maybe I am wrong here??

Cheers,
Biju

> 
> Best regards
> Thomas
> 
> > ---
> > v1->v2:
> >   * Dropped EXPORT symbol as both *_crtc.o and *_vsp.o are within the
> single module.
> >   * Updated the commit description.
> > ---
> >   drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h
> > b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h
> > index 12d98f04bf89..322eb80dcbaf 100644
> > --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h
> > +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.h
> > @@ -54,7 +54,7 @@ to_rzg2l_vsp_plane_state(struct drm_plane_state
> *state)
> >   	return container_of(state, struct rzg2l_du_vsp_plane_state, state);
> >   }
> >
> > -#ifdef CONFIG_DRM_RCAR_VSP
> > +#if IS_ENABLED(CONFIG_VIDEO_RENESAS_VSP1)
> >   int rzg2l_du_vsp_init(struct rzg2l_du_vsp *vsp, struct device_node
> *np,
> >   		      unsigned int crtcs);
> >   void rzg2l_du_vsp_enable(struct rzg2l_du_crtc *crtc);
> 
> --
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Frankenstrasse 146, 90461 Nuernberg, Germany
> GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman HRB 36809
> (AG Nuernberg)





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