1 files changed, 7 insertions, 3 deletions

diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index dbb2f6ad184a..35af23f5fa0d 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -527,8 +527,10 @@ struct drm_driver {
          * @dumb_map_offset:
          *
          * Allocate an offset in the drm device node's address space to be able to
-         * memory map a dumb buffer. GEM-based drivers must use
-         * drm_gem_create_mmap_offset() to implement this.
+         * memory map a dumb buffer.
+         *
+         * The default implementation is drm_gem_create_mmap_offset(). GEM based
+         * drivers must not overwrite this.
          *
          * Called by the user via ioctl.
          *
@@ -548,6 +550,9 @@ struct drm_driver {
          *
          * Called by the user via ioctl.
          *
+         * The default implementation is drm_gem_dumb_destroy(). GEM based drivers
+         * must not overwrite this.
+         *
          * Returns:
          *
          * Zero on success, negative errno on failure.
@@ -625,7 +630,6 @@ void drm_dev_unregister(struct drm_device *dev);
 
 void drm_dev_get(struct drm_device *dev);
 void drm_dev_put(struct drm_device *dev);
-void drm_dev_unref(struct drm_device *dev);
 void drm_put_dev(struct drm_device *dev);
 bool drm_dev_enter(struct drm_device *dev, int *idx);
 void drm_dev_exit(int idx);