diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7d358037d4e984bc5af4345ccb95336da5c7d1a0..7c56445722537d025d9d27295d22408e0f03c3b6 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3282,8 +3282,9 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
 	return 0;
 }
 
-int __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
-			       struct cfg80211_csa_settings *params)
+static int
+__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
+			   struct cfg80211_csa_settings *params)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;