net: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/irda/irnetlink.c b/net/irda/irnetlink.c
index cd9ff17..9e1fb82 100644
--- a/net/irda/irnetlink.c
+++ b/net/irda/irnetlink.c
@@ -40,7 +40,7 @@
 
 	ifname = nla_data(info->attrs[IRDA_NL_ATTR_IFNAME]);
 
-	IRDA_DEBUG(5, "%s(): Looking for %s\n", __FUNCTION__, ifname);
+	IRDA_DEBUG(5, "%s(): Looking for %s\n", __func__, ifname);
 
 	return dev_get_by_name(net, ifname);
 }
@@ -56,7 +56,7 @@
 
 	mode = nla_get_u32(info->attrs[IRDA_NL_ATTR_MODE]);
 
-	IRDA_DEBUG(5, "%s(): Switching to mode: %d\n", __FUNCTION__, mode);
+	IRDA_DEBUG(5, "%s(): Switching to mode: %d\n", __func__, mode);
 
 	dev = ifname_to_netdev(&init_net, info);
 	if (!dev)