MIPS: ip22-gio: Make gio_match_device() static

Unlike its PCI counterpart, gio_match_device() was never used outside
the GIO bus code.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

arch/mips/include/asm/gio_device.h

@@ -32,8 +32,6 @@ struct gio_driver {
 };
 #define to_gio_driver(drv) container_of(drv, struct gio_driver, driver)
 
-extern const struct gio_device_id *gio_match_device(const struct gio_device_id *,
-						    const struct gio_device *);
 extern struct gio_device *gio_dev_get(struct gio_device *);
 extern void gio_dev_put(struct gio_device *);
 

arch/mips/sgi-ip22/ip22-gio.c

@@ -47,7 +47,8 @@ static struct device gio_bus = {
  * Used by a driver to check whether an of_device present in the
  * system is in its list of supported devices.
  */
-const struct gio_device_id *gio_match_device(const struct gio_device_id *match,
+static const struct gio_device_id *
+gio_match_device(const struct gio_device_id *match,
 		 const struct gio_device *dev)
 {
 	const struct gio_device_id *ids;
@@ -58,7 +59,6 @@ const struct gio_device_id *gio_match_device(const struct gio_device_id *match,
 
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(gio_match_device);
 
 struct gio_device *gio_dev_get(struct gio_device *dev)
 {