[PATCH] 'mdio_bus_exit' in discarded section .text.exit

When building with  CONFIG_PHYLIB=y on Itanium, I see:
 `mdio_bus_exit' referenced in section `.init.text' of
drivers/built-in.o: defined in discarded section `.exit.text' of
drivers/built-in.o

I believe that mdio_bus_exit should not be declared __exit, because it is
referencesd from __init sections in, say, phy_init().
Signed-off-by: NPeter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

drivers/net/phy/mdio_bus.c

@@ -170,7 +170,7 @@ int __init mdio_bus_init(void)
 	return bus_register(&mdio_bus_type);
 }
 
-void __exit mdio_bus_exit(void)
+void mdio_bus_exit(void)
 {
 	bus_unregister(&mdio_bus_type);
 }