drm: Make drm_fb_cma_describe() static

This function is only used in drm_fb_cma_helper.c.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_fb_cma_helper.c

@@ -181,11 +181,11 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
 EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
 
 #ifdef CONFIG_DEBUG_FS
-/**
+/*
  * drm_fb_cma_describe() - Helper to dump information about a single
  * CMA framebuffer object
  */
-void drm_fb_cma_describe(struct drm_framebuffer *fb, struct seq_file *m)
+static void drm_fb_cma_describe(struct drm_framebuffer *fb, struct seq_file *m)
 {
 	struct drm_fb_cma *fb_cma = to_fb_cma(fb);
 	int i, n = drm_format_num_planes(fb->pixel_format);
@@ -199,7 +199,6 @@ void drm_fb_cma_describe(struct drm_framebuffer *fb, struct seq_file *m)
 		drm_gem_cma_describe(fb_cma->obj[i], m);
 	}
 }
-EXPORT_SYMBOL_GPL(drm_fb_cma_describe);
 
 /**
  * drm_fb_cma_debugfs_show() - Helper to list CMA framebuffer objects

include/drm/drm_fb_cma_helper.h

@@ -24,7 +24,6 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
 	unsigned int plane);
 
 #ifdef CONFIG_DEBUG_FS
-void drm_fb_cma_describe(struct drm_framebuffer *fb, struct seq_file *m);
 int drm_fb_cma_debugfs_show(struct seq_file *m, void *arg);
 #endif