--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -511,6 +511,10 @@ static int __ath_reg_dyn_country(struct
 
 	ath_reg_apply_world_flags(wiphy, request->initiator, reg);
 
+	// apply regulatory to phy devices
+	if (regulatory_hint(wiphy, reg->alpha2))
+		printk(KERN_DEBUG "ath: regulatory_hint error!\n");
+
 	return 0;
 }