diff --git a/net80211/ieee80211.c b/net80211/ieee80211.c
index 1695a04..b80e389 100644
--- a/net80211/ieee80211.c
+++ b/net80211/ieee80211.c
@@ -1135,20 +1135,6 @@ ieee80211_mark_dfs(struct ieee80211com *ic, struct ieee80211_channel *ichan)
 }
 EXPORT_SYMBOL(ieee80211_mark_dfs);
 
-void
-ieee80211_dfs_test_return(struct ieee80211com *ic, u_int8_t ieeeChan)
-{
-	struct net_device *dev = ic->ic_dev;
-
-	/* Return to the original channel we were on before the test mute. */
-	if_printf(dev, "Returning to channel %d\n", ieeeChan);
-	printk(KERN_DEBUG "Returning to chan %d\n", ieeeChan);
-	ic->ic_chanchange_chan = ieeeChan;
-	ic->ic_chanchange_tbtt = IEEE80211_RADAR_CHANCHANGE_TBTT_COUNT;
-	ic->ic_flags |= IEEE80211_F_CHANSWITCH;
-}
-EXPORT_SYMBOL(ieee80211_dfs_test_return);
-
 void
 ieee80211_announce(struct ieee80211com *ic)
 {
diff --git a/net80211/ieee80211_var.h b/net80211/ieee80211_var.h
index 835d485..4543a7a 100644
--- a/net80211/ieee80211_var.h
+++ b/net80211/ieee80211_var.h
@@ -691,7 +691,6 @@ int ieee80211_vap_setup(struct ieee80211com *, struct net_device *,
 int ieee80211_vap_attach(struct ieee80211vap *, ifm_change_cb_t, ifm_stat_cb_t);
 void ieee80211_vap_detach(struct ieee80211vap *);
 void ieee80211_mark_dfs(struct ieee80211com *, struct ieee80211_channel *);
-void ieee80211_dfs_test_return(struct ieee80211com *, u_int8_t);
 void ieee80211_announce(struct ieee80211com *);
 void ieee80211_announce_channels(struct ieee80211com *);
 int ieee80211_media_change(struct net_device *);