diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index a572bcb92d98142418c405ea150287fac753a795..e712be4a6433292ad7fe3a6d49386e615556bc91 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -558,7 +558,7 @@ static const struct ethtool_ops bfin_mac_ethtool_ops = {
 };
 
 /**************************************************************************/
-void setup_system_regs(struct net_device *dev)
+static void setup_system_regs(struct net_device *dev)
 {
 	struct bfin_mac_local *lp = netdev_priv(dev);
 	int i;