#include <drm/drm_fourcc.h>
 #include <drm/drm_vblank.h>
 
+static int amdgpu_display_framebuffer_init(struct drm_device *dev,
+                                          struct amdgpu_framebuffer *rfb,
+                                          const struct drm_mode_fb_cmd2 *mode_cmd,
+                                          struct drm_gem_object *obj);
+
 static void amdgpu_display_flip_callback(struct dma_fence *f,
                                         struct dma_fence_cb *cb)
 {
        return ret;
 }
 
-int amdgpu_display_framebuffer_init(struct drm_device *dev,
-                                   struct amdgpu_framebuffer *rfb,
-                                   const struct drm_mode_fb_cmd2 *mode_cmd,
-                                   struct drm_gem_object *obj)
+static int amdgpu_display_framebuffer_init(struct drm_device *dev,
+                                          struct amdgpu_framebuffer *rfb,
+                                          const struct drm_mode_fb_cmd2 *mode_cmd,
+                                          struct drm_gem_object *obj)
 {
        struct amdgpu_device *adev = drm_to_adev(dev);
        int ret, i;
 
        struct drm_device *dev, struct amdgpu_framebuffer *rfb,
        struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd,
        struct drm_gem_object *obj);
-int amdgpu_display_framebuffer_init(struct drm_device *dev,
-                                   struct amdgpu_framebuffer *rfb,
-                                   const struct drm_mode_fb_cmd2 *mode_cmd,
-                                   struct drm_gem_object *obj);
 
 int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);