--- zzzz-none-000/linux-4.9.231/net/wireless/rdev-ops.h	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/net/wireless/rdev-ops.h	2022-03-30 12:03:36.000000000 +0000
@@ -762,6 +762,14 @@
 	return ret;
 }
 
+static inline bool rdev_is_all_iface_idle(struct cfg80211_registered_device *rdev)
+{
+	if (!rdev->ops->is_all_iface_idle)
+		return true;
+
+	return rdev->ops->is_all_iface_idle(&rdev->wiphy);
+}
+
 static inline int rdev_get_antenna(struct cfg80211_registered_device *rdev,
 				   u32 *tx_ant, u32 *rx_ant)
 {