drm/plane: Remove redundant extern

Use of the extern keyword for function prototypes is unnecessary, so it
can be removed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 96e16283afb96ca3227a96733e6e6ff57acaac2a..dda401bf910e1eace1dbecbb7db92ca342ace306 100644 (file)
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -43,9 +43,8 @@
  * planes.
  */
 
-extern int drm_crtc_init(struct drm_device *dev,
-                        struct drm_crtc *crtc,
-                        const struct drm_crtc_funcs *funcs);
+int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
+                 const struct drm_crtc_funcs *funcs);
 
 /**
  * drm_plane_helper_funcs - helper operations for CRTCs
@@ -79,26 +78,26 @@ static inline void drm_plane_helper_add(struct drm_plane *plane,
        plane->helper_private = funcs;
 }
 
-extern int drm_plane_helper_check_update(struct drm_plane *plane,
-                                        struct drm_crtc *crtc,
-                                        struct drm_framebuffer *fb,
-                                        struct drm_rect *src,
-                                        struct drm_rect *dest,
-                                        const struct drm_rect *clip,
-                                        int min_scale,
-                                        int max_scale,
-                                        bool can_position,
-                                        bool can_update_disabled,
-                                        bool *visible);
-extern int drm_primary_helper_update(struct drm_plane *plane,
-                                    struct drm_crtc *crtc,
-                                    struct drm_framebuffer *fb,
-                                    int crtc_x, int crtc_y,
-                                    unsigned int crtc_w, unsigned int crtc_h,
-                                    uint32_t src_x, uint32_t src_y,
-                                    uint32_t src_w, uint32_t src_h);
-extern int drm_primary_helper_disable(struct drm_plane *plane);
-extern void drm_primary_helper_destroy(struct drm_plane *plane);
+int drm_plane_helper_check_update(struct drm_plane *plane,
+                                 struct drm_crtc *crtc,
+                                 struct drm_framebuffer *fb,
+                                 struct drm_rect *src,
+                                 struct drm_rect *dest,
+                                 const struct drm_rect *clip,
+                                 int min_scale,
+                                 int max_scale,
+                                 bool can_position,
+                                 bool can_update_disabled,
+                                 bool *visible);
+int drm_primary_helper_update(struct drm_plane *plane,
+                             struct drm_crtc *crtc,
+                             struct drm_framebuffer *fb,
+                             int crtc_x, int crtc_y,
+                             unsigned int crtc_w, unsigned int crtc_h,
+                             uint32_t src_x, uint32_t src_y,
+                             uint32_t src_w, uint32_t src_h);
+int drm_primary_helper_disable(struct drm_plane *plane);
+void drm_primary_helper_destroy(struct drm_plane *plane);
 extern const struct drm_plane_funcs drm_primary_helper_funcs;
 
 int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,