ACPI: make drivers/acpi/ec.c:ec_ecdt static

Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/ec.c

@@ -92,7 +92,7 @@ static struct acpi_driver acpi_ec_driver = {
 };
 
 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
-struct acpi_ec {
+static struct acpi_ec {
 	acpi_handle handle;
 	unsigned long uid;
 	unsigned long gpe;