Index: biosdevname-0.6.1/biosdevname.rules.in
===================================================================
--- biosdevname-0.6.1.orig/biosdevname.rules.in	2015-01-22 14:20:21.043675237 +0100
+++ biosdevname-0.6.1/biosdevname.rules.in	2015-01-22 14:20:22.827675266 +0100
@@ -4,6 +4,9 @@
 ATTR{type}!="1",  GOTO="netdevicename_end"
 ENV{DEVTYPE}=="?*", GOTO="netdevicename_end"
 
+# whitelist all Dell systems
+ATTR{[dmi/id]sys_vendor}=="Dell*", ENV{UDEV_BIOSDEVNAME}="1"
+
 # kernel command line "biosdevname={0|1}" can turn off/on biosdevname
 IMPORT{cmdline}="biosdevname"
 ENV{biosdevname}=="?*", ENV{UDEV_BIOSDEVNAME}="$env{biosdevname}"