__init in reboot.c

diff -uprN -X /linux/dontdiff a/arch/i386/kernel/reboot.c b/arch/i386/kernel/reboot.c
@@ -137,7 +137,7 @@ static struct dmi_system_id __initdata r
 	{ }
 };
 
-static int reboot_init(void)
+static int __init reboot_init(void)
 {
 	dmi_check_system(reboot_dmi_table);
 	return 0;