mac80211: Mark ieee80211_process_sa_query_req() static

This function is only used within rx.c, so mark it static.
Signed-off-by: NJouni Malinen <j@w1.fi>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

net/mac80211/rx.c

@@ -1667,7 +1667,7 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
 	return RX_CONTINUE;
 }
 
-void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
+static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
 					   struct ieee80211_mgmt *mgmt,
 					   size_t len)
 {