rtl8821cu: drop broken package

Doesn't have these usb wireless network cards, but did a simple test
on rtl8852be, it turns out that the rtl driver is completely rubbish
and is no longer usable.

package/kernel/rtl8821cu/Makefile

@@ -1,86 +0,0 @@
-#
-# Copyright (C) 2021 ImmortalWrt
-# <https://immortalwrt.org>
-#
-# This is free software, licensed under the GNU General Public License v3.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=rtl8821cu
-PKG_RELEASE:=1
-
-PKG_SOURCE_URL:=https://github.com/brektrou/rtl8821CU.git
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_DATE:=2022-04-09
-PKG_SOURCE_VERSION:=8c2226a74ae718439d56248bd2e44ccf717086d5
-PKG_MIRROR_HASH:=3353a3bc4c73652eceaab95809aab27c3ae8bbf7e915b73488361a061ba91b84
-
-PKG_LICENSE:=GPL-2.0
-PKG_LICENSE_FILES:=LICENSE
-PKG_MAINTAINTER:=CN_SZTL <cnsztl@immortalwrt.org>
-
-PKG_BUILD_PARALLEL:=1
-
-STAMP_CONFIGURED_DEPENDS := $(STAGING_DIR)/usr/include/mac80211-backport/backport/autoconf.h
-
-include $(INCLUDE_DIR)/kernel.mk
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/rtl8821cu
-  SUBMENU:=Wireless Drivers
-  TITLE:=Realtek RTL8811CU/RTL8821CU support
-  DEPENDS:=+kmod-cfg80211 +kmod-usb-core +@DRIVER_11N_SUPPORT +@DRIVER_11AC_SUPPORT
-  FILES:=$(PKG_BUILD_DIR)/rtl8821cu.ko
-  AUTOLOAD:=$(call AutoProbe,rtl8821cu)
-  PROVIDES:=kmod-rtl8821cu
-endef
-
-NOSTDINC_FLAGS = \
-	-I$(PKG_BUILD_DIR) \
-	-I$(PKG_BUILD_DIR)/include \
-	-I$(STAGING_DIR)/usr/include/mac80211-backport \
-	-I$(STAGING_DIR)/usr/include/mac80211-backport/uapi \
-	-I$(STAGING_DIR)/usr/include/mac80211 \
-	-I$(STAGING_DIR)/usr/include/mac80211/uapi \
-	-include backport/autoconf.h \
-	-include backport/backport.h
-
-EXTRA_KCONFIG:= \
-	CONFIG_RTL8821CU=m \
-	USER_MODULE_NAME=rtl8821cu
-
-ifeq ($(ARCH),aarch64)
-	EXTRA_KCONFIG += CONFIG_MP_VHT_HW_TX_MODE=n
-endif
-
-EXTRA_CFLAGS:= \
-	-DRTW_SINGLE_WIPHY \
-	-DRTW_USE_CFG80211_STA_EVENT \
-	-DCONFIG_IOCTL_CFG80211 \
-	-DCONFIG_CONCURRENT_MODE \
-	-DBUILD_OPENWRT
-
-ifeq ($(ARCH),arm)
-	EXTRA_CFLAGS += -mfloat-abi=softfp
-endif
-
-ifeq ($(BOARD),x86)
-	EXTRA_CFLAGS += -mhard-float
-endif
-
-MAKE_OPTS:= \
-	$(KERNEL_MAKE_FLAGS) \
-	M="$(PKG_BUILD_DIR)" \
-	NOSTDINC_FLAGS="$(NOSTDINC_FLAGS)" \
-	USER_EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
-	$(EXTRA_KCONFIG)
-
-define Build/Compile
-	+$(MAKE) $(PKG_JOBS) -C "$(LINUX_DIR)" \
-		$(MAKE_OPTS) \
-		modules
-endef
-
-$(eval $(call KernelPackage,rtl8821cu))

package/kernel/rtl8821cu/patches/001-use-kernel-byteorder.patch

@@ -1,15 +0,0 @@
-Fix compile problem when rtw_byteorder.h and asm/byteorder.h gets 
-included in addition for example indirectly, do not use realtek own copy 
-of the byteorder headers.
-
---- a/include/drv_types.h
-+++ b/include/drv_types.h
-@@ -25,7 +25,7 @@
- #include <drv_conf.h>
- #include <basic_types.h>
- #include <osdep_service.h>
--#include <rtw_byteorder.h>
-+#include <asm/byteorder.h>
- #include <wlan_bssdef.h>
- #include <wifi.h>
- #include <ieee80211.h>

package/kernel/rtl8821cu/patches/020-remove-repeat-flies.patch

@@ -1,39 +0,0 @@
-From 9b2b0ec1bc2d31ddf93ed74d63fdfa6044e329a4 Mon Sep 17 00:00:00 2001
-From: Ben Greear <greearb@candelatech.com>
-Date: Fri, 9 Nov 2018 16:21:43 -0800
-Subject: [PATCH] Fix build against openwrt backports tree.
-
-Like breaks builds elsewhere, can fix it up later.
-
-Signed-off-by: Ben Greear <greearb@candelatech.com>
----
- include/drv_conf.h                            |  4 +++-
- .../{wireless.h => old_unused_rtl_wireless.h} |  0
- include/{autoconf.h => rtl_autoconf.h}        |  0
- 3 files changed, 3 insertions(+), 1 deletions(-)
- rename include/linux/{wireless.h => old_unused_rtl_wireless.h} (100%)
- rename include/{autoconf.h => rtl_autoconf.h} (100%)
-
-diff --git a/include/drv_conf.h b/include/drv_conf.h
-index 0d20a7e..f0a9f88 100644
---- a/include/drv_conf.h
-+++ b/include/drv_conf.h
-@@ -14,7 +14,9 @@
-  *****************************************************************************/
- #ifndef __DRV_CONF_H__
- #define __DRV_CONF_H__
--#include "autoconf.h"
-+
-+#include <generated/autoconf.h>
-+#include "rtl_autoconf.h"
- #include "hal_ic_cfg.h"
- 
- #if defined(PLATFORM_LINUX) && defined (PLATFORM_WINDOWS)
-diff --git a/include/linux/wireless.h b/include/linux/old_unused_rtl_wireless.h
-similarity index 100%
-rename from include/linux/wireless.h
-rename to include/linux/old_unused_rtl_wireless.h
-diff --git a/include/autoconf.h b/include/rtl_autoconf.h
-similarity index 100%
-rename from include/autoconf.h
-rename to include/rtl_autoconf.h

package/kernel/rtl8821cu/patches/030-change-value-of-vht-enable.patch

@@ -1,11 +0,0 @@
---- a/os_dep/linux/os_intfs.c
-+++ b/os_dep/linux/os_intfs.c
-@@ -238,7 +238,7 @@
- #endif /* CONFIG_80211N_HT */
- 
- #ifdef CONFIG_80211AC_VHT
--int rtw_vht_enable = 1; /* 0:disable, 1:enable, 2:force auto enable */
-+int rtw_vht_enable = 2; /* 0:disable, 1:enable, 2:force auto enable */
- module_param(rtw_vht_enable, int, 0644);
- 
- int rtw_ampdu_factor = 7;

package/kernel/rtl8821cu/patches/040-wireless-5.8.patch

@@ -1,58 +0,0 @@
-diff --git a/os_dep/linux/ioctl_cfg80211.c b/os_dep/linux/ioctl_cfg80211.c
-index d9c81c9..3e7e27a 100755
---- a/os_dep/linux/ioctl_cfg80211.c
-+++ b/os_dep/linux/ioctl_cfg80211.c
-@@ -7149,7 +7149,7 @@ static void cfg80211_rtw_mgmt_frame_register(struct wiphy *wiphy,
- #else
- 	struct net_device *ndev,
- #endif
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0))
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0)) || defined(BUILD_OPENWRT)
- 	struct mgmt_frame_regs *upd)
- #else
- 	u16 frame_type, bool reg)
-@@ -7178,7 +7178,7 @@ static void cfg80211_rtw_mgmt_frame_register(struct wiphy *wiphy,
- 	/* Wait QC Verify */
- 	return;
- 
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0))
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0)) || defined(BUILD_OPENWRT)
- 	SET_CFG80211_REPORT_MGMT(pwdev_priv, IEEE80211_STYPE_PROBE_REQ, upd->interface_stypes & BIT(IEEE80211_STYPE_PROBE_REQ >> 4));
- #else
- 	switch (frame_type) {
-@@ -9467,7 +9467,7 @@ static struct cfg80211_ops rtw_cfg80211_ops = {
- 
- #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 37)) || defined(COMPAT_KERNEL_RELEASE)
- 	.mgmt_tx = cfg80211_rtw_mgmt_tx,
--#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0))
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0)) || defined(BUILD_OPENWRT)
- 	.update_mgmt_frame_registrations = cfg80211_rtw_mgmt_frame_register,
- #else
- 	.mgmt_frame_register = cfg80211_rtw_mgmt_frame_register,
-diff --git a/os_dep/linux/os_intfs.c b/os_dep/linux/os_intfs.c
-index 257c581..f97fa24 100755
---- a/os_dep/linux/os_intfs.c
-+++ b/os_dep/linux/os_intfs.c
-@@ -1306,6 +1306,14 @@ unsigned int rtw_classify8021d(struct sk_buff *skb)
- }
- 
- 
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
-+static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
-+    , struct net_device *sb_dev
-+    #if (LINUX_VERSION_CODE < KERNEL_VERSION(5,2,0))
-+    , select_queue_fallback_t fallback
-+    #endif
-+)
-+#else
- static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
- 	, void *accel_priv
-@@ -1314,6 +1322,7 @@ static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
- 	#endif
- #endif
- )
-+#endif
- {
- 	_adapter	*padapter = rtw_netdev_priv(dev);
- 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;

package/kernel/rtl8821cu/patches/050-Buildfix-for-Linux-5.18.patch

@@ -1,44 +0,0 @@
-From af27791efdde55cdec3b4400c9d1a806c0040e38 Mon Sep 17 00:00:00 2001
-From: Butterfly <gokhanlnx@gmail.com>
-Date: Tue, 12 Apr 2022 00:31:54 +0300
-Subject: [PATCH] Buildfix for Linux 5.18
-
-Buildfix for Linux 5.18
-Link: https://github.com/brektrou/rtl8821CU/pull/168
----
- include/ieee80211.h | 12 ++++++++++++
- 1 file changed, 12 insertions(+)
-
---- a/include/ieee80211.h
-+++ b/include/ieee80211.h
-@@ -1529,18 +1529,30 @@ enum ieee80211_state {
- 	(((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \
- 				     (((Addr[5]) & 0xff) == 0xff))
- #else
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 18, 0))
-+static inline int is_multicast_mac_addr(const u8 *addr)
-+#else
- extern __inline int is_multicast_mac_addr(const u8 *addr)
-+#endif
- {
- 	return (addr[0] != 0xff) && (0x01 & addr[0]);
- }
- 
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 18, 0))
-+static inline int is_broadcast_mac_addr(const u8 *addr)
-+#else
- extern __inline int is_broadcast_mac_addr(const u8 *addr)
-+#endif
- {
- 	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
- 		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
- }
- 
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 18, 0))
-+static inline int is_zero_mac_addr(const u8 *addr)
-+#else
- extern __inline int is_zero_mac_addr(const u8 *addr)
-+#endif
- {
- 	return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) &&   \
- 		(addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00));

package/kernel/rtl8821cu/patches/051-fix-rtw_memcpy-5.18.patch

@@ -1,53 +0,0 @@
-From 7e24201ebdcdbe2d34f5cdfe4065928b381b8d04 Mon Sep 17 00:00:00 2001
-From: Butterfly <gokhanlnx@gmail.com>
-Date: Tue, 12 Apr 2022 00:05:41 +0300
-Subject: [PATCH 1/2] osdep_service.c: fix warning _rtw_memcpy
-
-osdep_service.c: fix warning _rtw_memcpy
----
- os_dep/osdep_service.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/os_dep/osdep_service.c b/os_dep/osdep_service.c
-index d4a01c8..6a2d3ac 100644
---- a/os_dep/osdep_service.c
-+++ b/os_dep/osdep_service.c
-@@ -2491,7 +2491,11 @@ int rtw_change_ifname(_adapter *padapter, const char *ifname)
- 
- 	rtw_init_netdev_name(pnetdev, ifname);
- 
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 17, 0)
- 	_rtw_memcpy(pnetdev->dev_addr, adapter_mac_addr(padapter), ETH_ALEN);
-+#else
-+	dev_addr_set(pnetdev, adapter_mac_addr(padapter));
-+#endif
- 
- 	if (rtnl_lock_needed)
- 		ret = register_netdev(pnetdev);
-
-From 924f57d1cce2843aa28d557b74baf00a6482caa8 Mon Sep 17 00:00:00 2001
-From: Butterfly <gokhanlnx@gmail.com>
-Date: Tue, 12 Apr 2022 00:08:52 +0300
-Subject: [PATCH 2/2] ioctl_linux.c: fix warning _rtw_memcpy
-
-ioctl_linux.c: fix warning _rtw_memcpy
----
- os_dep/linux/ioctl_linux.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/os_dep/linux/ioctl_linux.c b/os_dep/linux/ioctl_linux.c
-index 20dd583..a0d32ee 100644
---- a/os_dep/linux/ioctl_linux.c
-+++ b/os_dep/linux/ioctl_linux.c
-@@ -9778,7 +9778,11 @@ static int rtw_mp_efuse_set(struct net_device *dev,
- 		rtw_hal_read_chip_info(padapter);
- 		/* set mac addr*/
- 		rtw_macaddr_cfg(adapter_mac_addr(padapter), get_hal_mac_addr(padapter));
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 17, 0)
- 		_rtw_memcpy(padapter->pnetdev->dev_addr, get_hal_mac_addr(padapter), ETH_ALEN); /* set mac addr to net_device */
-+#else
-+		dev_addr_set(padapter->pnetdev, get_hal_mac_addr(padapter)); /* set mac addr to net_device */
-+#endif
- 
- #ifdef CONFIG_P2P
- 		rtw_init_wifidirect_addrs(padapter, adapter_mac_addr(padapter), adapter_mac_addr(padapter));