1 files changed, 5 insertions, 0 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 282a4f36eb92..774ccb2d9a76 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -764,6 +764,11 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
              local->hw.offchannel_tx_hw_queue >= local->hw.queues))
                 return -EINVAL;
 
+        if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) &&
+            (!local->ops->tdls_channel_switch ||
+             !local->ops->tdls_cancel_channel_switch))
+                return -EOPNOTSUPP;
+
 #ifdef CONFIG_PM
         if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
                 return -EINVAL;