--- kernel/nv-drm.c    2014-11-08 00:57:53.000000000 +0100
+++ kernel/nv-drm.c    2014-11-13 21:03:37.589650873 +0100
@@ -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",