gcc-13 warns about mismatching types for enums. That revealed switched
arguments of nv50_wndw_new_():
  drivers/gpu/drm/nouveau/dispnv50/wndw.c:696:1: error: conflicting types for 'nv50_wndw_new_' due to enum/integer mismatch; have 'int(const struct nv50_wndw_func *, struct drm_device *, enum drm_plane_type,  const char *, int,  const u32 *, u32,  enum nv50_disp_interlock_type,  u32,  struct nv50_wndw **)'
  drivers/gpu/drm/nouveau/dispnv50/wndw.h:36:5: note: previous declaration of 'nv50_wndw_new_' with type 'int(const struct nv50_wndw_func *, struct drm_device *, enum drm_plane_type,  const char *, int,  const u32 *, enum nv50_disp_interlock_type,  u32,  u32,  struct nv50_wndw **)'

It can be barely visible, but the declaration says about the parameters
in the middle:
  enum nv50_disp_interlock_type,
  u32 interlock_data,
  u32 heads,

While the definition states differently:
  u32 heads,
  enum nv50_disp_interlock_type interlock_type,
  u32 interlock_data,

Unify/fix the declaration to match the definition.

Cc: Martin Liska <mliska@suse.cz>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
---

Notes:
    [v2] switch to uint instead of to enum

 drivers/gpu/drm/nouveau/dispnv50/wndw.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.h b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
index 591c852f326b..76a6ae5d5652 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.h
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
@@ -35,8 +35,9 @@ struct nv50_wndw {
 
 int nv50_wndw_new_(const struct nv50_wndw_func *, struct drm_device *,
 		   enum drm_plane_type, const char *name, int index,
-		   const u32 *format, enum nv50_disp_interlock_type,
-		   u32 interlock_data, u32 heads, struct nv50_wndw **);
+		   const u32 *format, u32 heads,
+		   enum nv50_disp_interlock_type, u32 interlock_data,
+		   struct nv50_wndw **);
 void nv50_wndw_flush_set(struct nv50_wndw *, u32 *interlock,
 			 struct nv50_wndw_atom *);
 void nv50_wndw_flush_clr(struct nv50_wndw *, u32 *interlock, bool flush,
-- 
2.39.0

On Mon, Jan 16, 2023 at 11:07 AM Jiri Slaby (SUSE) <jirislaby@kernel.org> wrote:
>
> gcc-13 warns about mismatching types for enums. That revealed switched
> arguments of nv50_wndw_new_():
>   drivers/gpu/drm/nouveau/dispnv50/wndw.c:696:1: error: conflicting types for 'nv50_wndw_new_' due to enum/integer mismatch; have 'int(const struct nv50_wndw_func *, struct drm_device *, enum drm_plane_type,  const char *, int,  const u32 *, u32,  enum nv50_disp_interlock_type,  u32,  struct nv50_wndw **)'
>   drivers/gpu/drm/nouveau/dispnv50/wndw.h:36:5: note: previous declaration of 'nv50_wndw_new_' with type 'int(const struct nv50_wndw_func *, struct drm_device *, enum drm_plane_type,  const char *, int,  const u32 *, enum nv50_disp_interlock_type,  u32,  u32,  struct nv50_wndw **)'
>
> It can be barely visible, but the declaration says about the parameters
> in the middle:
>   enum nv50_disp_interlock_type,
>   u32 interlock_data,
>   u32 heads,
>
> While the definition states differently:
>   u32 heads,
>   enum nv50_disp_interlock_type interlock_type,
>   u32 interlock_data,
>
> Unify/fix the declaration to match the definition.
>

Reviewed-by: Karol Herbst <kherbst@redhat.com>

will merge it into drm-misc soon

> Cc: Martin Liska <mliska@suse.cz>
> Cc: Ben Skeggs <bskeggs@redhat.com>
> Cc: Karol Herbst <kherbst@redhat.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: David Airlie <airlied@gmail.com>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> Cc: nouveau@lists.freedesktop.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
> ---
>
> Notes:
>     [v2] switch to uint instead of to enum
>
>  drivers/gpu/drm/nouveau/dispnv50/wndw.h | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.h b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
> index 591c852f326b..76a6ae5d5652 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/wndw.h
> +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
> @@ -35,8 +35,9 @@ struct nv50_wndw {
>
>  int nv50_wndw_new_(const struct nv50_wndw_func *, struct drm_device *,
>                    enum drm_plane_type, const char *name, int index,
> -                  const u32 *format, enum nv50_disp_interlock_type,
> -                  u32 interlock_data, u32 heads, struct nv50_wndw **);
> +                  const u32 *format, u32 heads,
> +                  enum nv50_disp_interlock_type, u32 interlock_data,
> +                  struct nv50_wndw **);
>  void nv50_wndw_flush_set(struct nv50_wndw *, u32 *interlock,
>                          struct nv50_wndw_atom *);
>  void nv50_wndw_flush_clr(struct nv50_wndw *, u32 *interlock, bool flush,
> --
> 2.39.0
>