openwrt/package/kernel/mac80211/patches/410-ath9k_allow_adhoc_and_ap.patch

--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -778,6 +778,7 @@ static const struct ieee80211_iface_limi
 #endif
 				 BIT(NL80211_IFTYPE_AP) |
 				 BIT(NL80211_IFTYPE_P2P_GO) },
+	{ .max = 1,	.types = BIT(NL80211_IFTYPE_ADHOC) },
 };