ath9k: ath9k_op_ps_wakeup() can be static

drivers/net/wireless/ath/ath9k/init.c:91:6: sparse: symbol 'ath9k_op_ps_wakeup' was not declared. Should it be static?
drivers/net/wireless/ath/ath9k/init.c:96:6: sparse: symbol 'ath9k_op_ps_restore' was not declared. Should it be static?
drivers/net/wireless/ath/ath9k/init.c:101:19: sparse: symbol 'ath9k_ps_ops' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/init.c

@@ -88,17 +88,17 @@ static const struct ieee80211_tpt_blink ath9k_tpt_blink[] = {
 
 static void ath9k_deinit_softc(struct ath_softc *sc);
 
-void ath9k_op_ps_wakeup(struct ath_common *common)
+static void ath9k_op_ps_wakeup(struct ath_common *common)
 {
 	ath9k_ps_wakeup((struct ath_softc *) common->priv);
 }
 
-void ath9k_op_ps_restore(struct ath_common *common)
+static void ath9k_op_ps_restore(struct ath_common *common)
 {
 	ath9k_ps_restore((struct ath_softc *) common->priv);
 }
 
-struct ath_ps_ops ath9k_ps_ops = {
+static struct ath_ps_ops ath9k_ps_ops = {
 	.wakeup = ath9k_op_ps_wakeup,
 	.restore = ath9k_op_ps_restore,
 };