iwl3945: use iwl_mac_beacon_update

3945 can use iwl_mac_beacon_update.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 4ad8465..0447385 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -258,6 +258,7 @@
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *bss_conf,
 				     u32 changes);
+int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 
 /*****************************************************
  * RX handlers.