drm: update the documentation of drm_framebuffer_unregister_private
Add obvious description to drm_framebuffer_unregister_private()
to explain it is deprecated.
Signed-off-by: Rongrong Zou <zourongrong@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1477915196-100299-1-git-send-email-zourongrong@gmail.com
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 49fd7db..af786f2 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -673,6 +673,11 @@
* those used for fbdev. Note that the caller must hold a reference of it's own,
* i.e. the object may not be destroyed through this call (since it'll lead to a
* locking inversion).
+ *
+ * NOTE: This function is deprecated. For driver-private framebuffers it is not
+ * recommended to embed a framebuffer struct info fbdev struct, instead, a
+ * framebuffer pointer is preferred and drm_framebuffer_unreference() should be
+ * called when the framebuffer is to be cleaned up.
*/
void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
{