--- zzzz-none-000/linux-4.4.60/net/wireless/reg.c	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/net/wireless/reg.c	2022-03-30 14:21:53.000000000 +0000
@@ -1604,7 +1604,7 @@
 
 static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev)
 {
-	struct cfg80211_chan_def chandef;
+	struct cfg80211_chan_def chandef = {};
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
 	enum nl80211_iftype iftype;
 
@@ -3167,8 +3167,9 @@
 }
 
 /*
- * See http://www.fcc.gov/document/5-ghz-unlicensed-spectrum-unii, for
- * UNII band definitions
+ * See FCC notices for UNII band definitions
+ *  5GHz: https://www.fcc.gov/document/5-ghz-unlicensed-spectrum-unii
+ *  6GHz: https://www.fcc.gov/document/fcc-proposes-more-spectrum-unlicensed-use-0
  */
 int cfg80211_get_unii(int freq)
 {
@@ -3192,6 +3193,22 @@
 	if (freq > 5725 && freq <= 5825)
 		return 4;
 
+	/* UNII-5 */
+	if (freq > 5925 && freq <= 6425)
+		return 5;
+
+	/* UNII-6 */
+	if (freq > 6425 && freq <= 6525)
+		return 6;
+
+	/* UNII-7 */
+	if (freq > 6525 && freq <= 6875)
+		return 7;
+
+	/* UNII-8 */
+	if (freq > 6875 && freq <= 7125)
+		return 8;
+
 	return -EINVAL;
 }