diff -Nur linux-4.4.6.orig/drivers/net/ethernet/natsemi/Kconfig linux-4.4.6/drivers/net/ethernet/natsemi/Kconfig
--- linux-4.4.6.orig/drivers/net/ethernet/natsemi/Kconfig	2016-03-16 16:43:17.000000000 +0100
+++ linux-4.4.6/drivers/net/ethernet/natsemi/Kconfig	2016-03-18 10:43:34.000000000 +0100
@@ -18,6 +18,7 @@
 config MACSONIC
 	tristate "Macintosh SONIC based ethernet (onboard, NuBus, LC, CS)"
 	depends on MAC
+	select BITREVERSE
 	---help---
 	  Support for NatSemi SONIC based Ethernet devices.  This includes
 	  the onboard Ethernet in many Quadras as well as some LC-PDS,