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-rw-r--r--net/mac80211/main.c5
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;
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