Index: /trunk/src/VBox/Additions/linux/drm/vbox_ttm.c
===================================================================
--- /trunk/src/VBox/Additions/linux/drm/vbox_ttm.c	(revision 88508)
+++ /trunk/src/VBox/Additions/linux/drm/vbox_ttm.c	(revision 88509)
@@ -224,4 +224,6 @@
 # if RTLNX_VER_MIN(5,11,0)
 		mem->bus.caching = ttm_write_combined;
+# endif
+# if RTLNX_VER_MIN(5,10,0)
 		mem->bus.offset = (mem->start << PAGE_SHIFT) + pci_resource_start(vbox->dev->pdev, 0);
 # else