diff --git a/package/kernel/rtl8821cu/Makefile b/package/kernel/rtl8821cu/Makefile
index 624d03c544..87fe3b3b74 100644
--- a/package/kernel/rtl8821cu/Makefile
+++ b/package/kernel/rtl8821cu/Makefile
@@ -1,15 +1,11 @@
+# SPDX-License-Identifier: GPL-3.0-only
 #
-# Copyright (C) 2021 ImmortalWrt
-# <https://immortalwrt.org>
-#
-# This is free software, licensed under the GNU General Public License v3.
-# See /LICENSE for more information.
-#
+# Copyright (C) 2021-2022 ImmortalWrt.org
 
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=rtl8821cu
-PKG_RELEASE:=1
+PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE_URL:=https://github.com/brektrou/rtl8821CU.git
 PKG_SOURCE_PROTO:=git
@@ -19,7 +15,7 @@ PKG_MIRROR_HASH:=77958d3bff8b0145504a10959765be0e3743b9c4880a5173d156238c2c569a5
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=LICENSE
-PKG_MAINTAINTER:=CN_SZTL <cnsztl@immortalwrt.org>
+PKG_MAINTAINTER:=Tianling Shen <cnsztl@immortalwrt.org>
 
 PKG_BUILD_PARALLEL:=1
 
diff --git a/package/kernel/rtl8821cu/patches/050-fix-build-newer-k4.9.patch b/package/kernel/rtl8821cu/patches/050-fix-build-newer-k4.9.patch
new file mode 100644
index 0000000000..8adaa2d84b
--- /dev/null
+++ b/package/kernel/rtl8821cu/patches/050-fix-build-newer-k4.9.patch
@@ -0,0 +1,61 @@
+diff --git a/os_dep/linux/ioctl_cfg80211.c b/os_dep/linux/ioctl_cfg80211.c
+index d9c81c9..0495ac3 100755
+--- a/os_dep/linux/ioctl_cfg80211.c
++++ b/os_dep/linux/ioctl_cfg80211.c
+@@ -1011,7 +1011,7 @@ void rtw_cfg80211_indicate_connect(_adapter *padapter)
+ #ifdef CONFIG_P2P
+ 	struct wifidirect_info *pwdinfo = &(padapter->wdinfo);
+ #endif
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) || LINUX_VERSION_IN_RANGE(4, 9, 255, 4, 10, 0)
+ 	struct cfg80211_roam_info roam_info ={};
+ #endif
+ 
+@@ -1084,7 +1084,7 @@ check_bss:
+ 		notify_channel = ieee80211_get_channel(wiphy, freq);
+ 		#endif
+ 
+-		#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
++		#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) || LINUX_VERSION_IN_RANGE(4, 9, 255, 4, 10, 0)
+ 		roam_info.bssid = cur_network->network.MacAddress;
+ 		roam_info.req_ie = pmlmepriv->assoc_req + sizeof(struct rtw_ieee80211_hdr_3addr) + 2;
+ 		roam_info.req_ie_len = pmlmepriv->assoc_req_len - sizeof(struct rtw_ieee80211_hdr_3addr) - 2;
+@@ -1103,7 +1103,7 @@ check_bss:
+ 			, pmlmepriv->assoc_rsp + sizeof(struct rtw_ieee80211_hdr_3addr) + 6
+ 			, pmlmepriv->assoc_rsp_len - sizeof(struct rtw_ieee80211_hdr_3addr) - 6
+ 			, GFP_ATOMIC);
+-		#endif /*LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)*/
++		#endif /*LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) || LINUX_VERSION_IN_RANGE(4, 9, 255, 4, 10, 0)*/
+ 
+ 		RTW_INFO(FUNC_ADPT_FMT" call cfg80211_roamed\n", FUNC_ADPT_ARG(padapter));
+ 
+@@ -2276,7 +2276,8 @@ enum nl80211_iftype {
+ static int cfg80211_rtw_change_iface(struct wiphy *wiphy,
+ 				     struct net_device *ndev,
+ 				     enum nl80211_iftype type,
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0))
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0)) && \
++		!LINUX_VERSION_IN_RANGE(4, 9, 255, 4, 10, 0)
+ 				     u32 *flags,
+ #endif
+ 				     struct vif_params *params)
+@@ -4594,7 +4595,8 @@ static int
+ 		unsigned char name_assign_type,
+ 		#endif
+ 		enum nl80211_iftype type,
+-		#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0))
++		#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0)) && \
++			!LINUX_VERSION_IN_RANGE(4, 9, 255, 4, 10, 0)
+ 		u32 *flags,
+ 		#endif
+ 		struct vif_params *params)
+@@ -9150,7 +9152,8 @@ static void rtw_cfg80211_preinit_wiphy(_adapter *adapter, struct wiphy *wiphy)
+ #endif
+ 
+ #if defined(CONFIG_PM) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) && \
+-			   LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0))
++			   LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0)) && \
++			   !LINUX_VERSION_IN_RANGE(4, 9, 255, 4, 10, 0)
+ 	wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
+ #ifdef CONFIG_PNO_SUPPORT
+ 	wiphy->max_sched_scan_ssids = MAX_PNO_LIST_COUNT;