--- a/kernel/nv-drm.c	2014-12-01 23:26:56.000000000 +0000
+++ b/kernel/nv-drm.c	2014-12-16 17:17:14.502960174 +0000
@@ -128,6 +128,10 @@ static struct drm_driver nv_drm_driver =
     .gem_prime_vmap = nv_gem_prime_vmap,
     .gem_prime_vunmap = nv_gem_prime_vunmap,
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
+    .set_busid = drm_pci_set_busid,
+#endif
+
     .name = "nvidia-drm",
     .desc = "NVIDIA DRM driver",
     .date = "20130102",