From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 24 May 2017 16:51:38 +0200
Subject: drm/udl: Remove dummy busid callback
Git-commit: 76bba2cdb56d2a55c0dd4c3432221881d8c9adcc
Patch-mainline: v4.14-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Since

commit ca8e2ad71013049bc88a10b11d83712bfe56cdd4
Author: Thierry Reding <treding@nvidia.com>
Date:   Fri Apr 11 15:23:00 2014 +0200

    drm: Introduce drm_dev_set_unique()

the ->set_busid callback is optional. On top of that the udl one isn't
really fully compliant with the drm uabi, but since only modesetting
ever binds to it (there's no 3d accel on udl) it doesn't matter.

Still, can't harm to aling and use the default used by everyone else.

Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-4-daniel.vetter@ffwll.ch

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/udl/udl_drv.c |    6 ------
 1 file changed, 6 deletions(-)

--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -11,11 +11,6 @@
 #include <drm/drm_crtc_helper.h>
 #include "udl_drv.h"
 
-static int udl_driver_set_busid(struct drm_device *d, struct drm_master *m)
-{
-	return 0;
-}
-
 static int udl_usb_suspend(struct usb_interface *interface,
 			   pm_message_t message)
 {
@@ -52,7 +47,6 @@ static struct drm_driver driver = {
 	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
 	.load = udl_driver_load,
 	.unload = udl_driver_unload,
-	.set_busid = udl_driver_set_busid,
 
 	/* gem hooks */
 	.gem_free_object = udl_gem_free_object,