diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index da0af10738..e609780484 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -44,15 +44,8 @@ config KERNEL_DEBUG_FS
 	  write to these files. Many common debugging facilities, such as
 	  ftrace, require the existence of debugfs.
 
-# remove KERNEL_MIPS_FPU_EMULATOR after kernel 4.14 and 4.14 are gone
-config KERNEL_MIPS_FPU_EMULATOR
-	bool "Compile the kernel with MIPS FPU Emulator"
-	default y if TARGET_pistachio
-	depends on (mips || mipsel || mips64 || mips64el)
-
 config KERNEL_MIPS_FP_SUPPORT
 	bool
-	default y if KERNEL_MIPS_FPU_EMULATOR
 
 config KERNEL_ARM_PMU
 	bool
diff --git a/include/image.mk b/include/image.mk
index 0afb1f803c..0aac3a1761 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -162,18 +162,12 @@ DTC_FLAGS += \
   -Wno-unit_address_format \
   -Wno-pci_bridge \
   -Wno-pci_device_bus_num \
-  -Wno-pci_device_reg
-ifeq ($(strip $(call kernel_patchver_ge,4.17.0)),1)
-  DTC_FLAGS += \
-	-Wno-avoid_unnecessary_addr_size \
-	-Wno-alias_paths
-endif
-ifeq ($(strip $(call kernel_patchver_ge,4.18.0)),1)
-  DTC_FLAGS += \
-	-Wno-graph_child_address \
-	-Wno-graph_port \
-	-Wno-unique_unit_address
-endif
+  -Wno-pci_device_reg \
+  -Wno-avoid_unnecessary_addr_size \
+  -Wno-alias_paths \
+  -Wno-graph_child_address \
+  -Wno-graph_port \
+  -Wno-unique_unit_address
 
 define Image/pad-to
 	dd if=$(1) of=$(1).new bs=$(2) conv=sync
diff --git a/package/kernel/i2c-gpio-custom/Makefile b/package/kernel/i2c-gpio-custom/Makefile
deleted file mode 100644
index 40961abb83..0000000000
--- a/package/kernel/i2c-gpio-custom/Makefile
+++ /dev/null
@@ -1,47 +0,0 @@
-#
-# Copyright (C) 2008 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=i2c-gpio-custom
-PKG_RELEASE:=2
-
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/i2c-gpio-custom
-  SUBMENU:=I2C support
-  TITLE:=Custom GPIO-based I2C device
-  DEPENDS:=@GPIO_SUPPORT +kmod-i2c-core +kmod-i2c-gpio @LINUX_4_14
-  FILES:=$(PKG_BUILD_DIR)/i2c-gpio-custom.ko
-  KCONFIG:=
-endef
-
-define KernelPackage/i2c-gpio-custom/description
- Kernel module for register a custom i2c-gpio platform device.
-endef
-
-EXTRA_KCONFIG:= \
-	CONFIG_I2C_GPIO_CUSTOM=m
-
-EXTRA_CFLAGS:= \
-	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
-	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \
-
-MAKE_OPTS:= \
-	$(KERNEL_MAKE_FLAGS) \
-	M="$(PKG_BUILD_DIR)" \
-	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
-	$(EXTRA_KCONFIG)
-
-define Build/Compile
-	$(MAKE) -C "$(LINUX_DIR)" \
-		$(MAKE_OPTS) \
-		modules
-endef
-
-$(eval $(call KernelPackage,i2c-gpio-custom))
diff --git a/package/kernel/i2c-gpio-custom/src/Kconfig b/package/kernel/i2c-gpio-custom/src/Kconfig
deleted file mode 100644
index e2e3a68d92..0000000000
--- a/package/kernel/i2c-gpio-custom/src/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-config I2C_GPIO_CUSTOM
-	tristate "Custom GPIO-based I2C driver"
-	depends on GENERIC_GPIO
-	select I2C_GPIO
-	help
-	  This is an I2C driver to register 1 to 4 custom I2C buses using
-	  GPIO lines.
-
-	  This support is also available as a module.  If so, the module
-	  will be called i2c-gpio-custom.
diff --git a/package/kernel/i2c-gpio-custom/src/Makefile b/package/kernel/i2c-gpio-custom/src/Makefile
deleted file mode 100644
index dcb2e2abe2..0000000000
--- a/package/kernel/i2c-gpio-custom/src/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-${CONFIG_I2C_GPIO_CUSTOM}	+= i2c-gpio-custom.o
\ No newline at end of file
diff --git a/package/kernel/i2c-gpio-custom/src/i2c-gpio-custom.c b/package/kernel/i2c-gpio-custom/src/i2c-gpio-custom.c
deleted file mode 100644
index f9917e52fd..0000000000
--- a/package/kernel/i2c-gpio-custom/src/i2c-gpio-custom.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- *  Custom GPIO-based I2C driver
- *
- *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- * ---------------------------------------------------------------------------
- *
- *  The behaviour of this driver can be altered by setting some parameters
- *  from the insmod command line.
- *
- *  The following parameters are adjustable:
- *
- *	bus0	These four arguments can be arrays of
- *	bus1	1-8 unsigned integers as follows:
- *	bus2
- *	bus3	<id>,<sda>,<scl>,<udelay>,<timeout>,<sda_od>,<scl_od>,<scl_oo>
- *
- *  where:
- *
- *  <id>	ID to used as device_id for the corresponding bus (required)
- *  <sda>	GPIO pin ID to used for SDA (required)
- *  <scl>	GPIO pin ID to used for SCL (required)
- *  <udelay>	signal toggle delay.
- *  <timeout>	clock stretching timeout.
- *  <sda_od>	SDA is configured as open drain.
- *  <scl_od>	SCL is configured as open drain.
- *  <scl_oo>	SCL output drivers cannot be turned off.
- *
- *  See include/i2c-gpio.h for more information about the parameters.
- *
- *  If this driver is built into the kernel, you can use the following kernel
- *  command line parameters, with the same values as the corresponding module
- *  parameters listed above:
- *
- *	i2c-gpio-custom.bus0
- *	i2c-gpio-custom.bus1
- *	i2c-gpio-custom.bus2
- *	i2c-gpio-custom.bus3
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 18, 0)
-#include <linux/i2c-gpio.h>
-#else
-#include <linux/platform_data/i2c-gpio.h>
-#endif
-
-#define DRV_NAME	"i2c-gpio-custom"
-#define DRV_DESC	"Custom GPIO-based I2C driver"
-#define DRV_VERSION	"0.1.1"
-
-#define PFX		DRV_NAME ": "
-
-#define BUS_PARAM_ID		0
-#define BUS_PARAM_SDA		1
-#define BUS_PARAM_SCL		2
-#define BUS_PARAM_UDELAY	3
-#define BUS_PARAM_TIMEOUT	4
-#define BUS_PARAM_SDA_OD	5
-#define BUS_PARAM_SCL_OD	6
-#define BUS_PARAM_SCL_OO	7
-
-#define BUS_PARAM_REQUIRED	3
-#define BUS_PARAM_COUNT		8
-#define BUS_COUNT_MAX		4
-
-static unsigned int bus0[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus1[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus2[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus3[BUS_PARAM_COUNT] __initdata;
-
-static unsigned int bus_nump[BUS_COUNT_MAX] __initdata;
-
-#define BUS_PARM_DESC \
-	" config -> id,sda,scl[,udelay,timeout,sda_od,scl_od,scl_oo]"
-
-module_param_array(bus0, uint, &bus_nump[0], 0);
-MODULE_PARM_DESC(bus0, "bus0" BUS_PARM_DESC);
-module_param_array(bus1, uint, &bus_nump[1], 0);
-MODULE_PARM_DESC(bus1, "bus1" BUS_PARM_DESC);
-module_param_array(bus2, uint, &bus_nump[2], 0);
-MODULE_PARM_DESC(bus2, "bus2" BUS_PARM_DESC);
-module_param_array(bus3, uint, &bus_nump[3], 0);
-MODULE_PARM_DESC(bus3, "bus3" BUS_PARM_DESC);
-
-static struct platform_device *devices[BUS_COUNT_MAX];
-static unsigned int nr_devices;
-
-static void i2c_gpio_custom_cleanup(void)
-{
-	int i;
-
-	for (i = 0; i < nr_devices; i++)
-		if (devices[i])
-			platform_device_put(devices[i]);
-}
-
-static int __init i2c_gpio_custom_add_one(unsigned int id, unsigned int *params)
-{
-	struct platform_device *pdev;
-	struct i2c_gpio_platform_data pdata;
-	int err;
-
-	if (!bus_nump[id])
-		return 0;
-
-	if (bus_nump[id] < BUS_PARAM_REQUIRED) {
-		printk(KERN_ERR PFX "not enough parameters for bus%d\n", id);
-		err = -EINVAL;
-		goto err;
-	}
-
-	pdev = platform_device_alloc("i2c-gpio", params[BUS_PARAM_ID]);
-	if (!pdev) {
-		err = -ENOMEM;
-		goto err;
-	}
-
-	pdata.sda_pin = params[BUS_PARAM_SDA];
-	pdata.scl_pin = params[BUS_PARAM_SCL];
-	pdata.udelay = params[BUS_PARAM_UDELAY];
-	pdata.timeout = params[BUS_PARAM_TIMEOUT];
-	pdata.sda_is_open_drain = params[BUS_PARAM_SDA_OD] != 0;
-	pdata.scl_is_open_drain = params[BUS_PARAM_SCL_OD] != 0;
-	pdata.scl_is_output_only = params[BUS_PARAM_SCL_OO] != 0;
-
-	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
-	if (err)
-		goto err_put;
-
-	err = platform_device_add(pdev);
-	if (err)
-		goto err_put;
-
-	devices[nr_devices++] = pdev;
-	return 0;
-
-err_put:
-	platform_device_put(pdev);
-err:
-	return err;
-}
-
-static int __init i2c_gpio_custom_probe(void)
-{
-	int err;
-
-	printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n");
-
-	err = i2c_gpio_custom_add_one(0, bus0);
-	if (err)
-		goto err;
-
-	err = i2c_gpio_custom_add_one(1, bus1);
-	if (err)
-		goto err;
-
-	err = i2c_gpio_custom_add_one(2, bus2);
-	if (err)
-		goto err;
-
-	err = i2c_gpio_custom_add_one(3, bus3);
-	if (err)
-		goto err;
-
-	if (!nr_devices) {
-		printk(KERN_ERR PFX "no bus parameter(s) specified\n");
-		err = -ENODEV;
-		goto err;
-	}
-
-	return 0;
-
-err:
-	i2c_gpio_custom_cleanup();
-	return err;
-}
-
-#ifdef MODULE
-static int __init i2c_gpio_custom_init(void)
-{
-	return i2c_gpio_custom_probe();
-}
-module_init(i2c_gpio_custom_init);
-
-static void __exit i2c_gpio_custom_exit(void)
-{
-	i2c_gpio_custom_cleanup();
-}
-module_exit(i2c_gpio_custom_exit);
-#else
-subsys_initcall(i2c_gpio_custom_probe);
-#endif /* MODULE*/
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org >");
-MODULE_DESCRIPTION(DRV_DESC);
-MODULE_VERSION(DRV_VERSION);
diff --git a/package/kernel/kmod-sched-cake-oot/Makefile b/package/kernel/kmod-sched-cake-oot/Makefile
deleted file mode 100644
index a6ab1eb4c6..0000000000
--- a/package/kernel/kmod-sched-cake-oot/Makefile
+++ /dev/null
@@ -1,54 +0,0 @@
-#
-# Copyright (C) 2016 LEDE
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=sched-cake-oot
-PKG_RELEASE:=1
-
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=https://github.com/dtaht/sch_cake.git
-PKG_SOURCE_DATE:=2020-07-24
-PKG_SOURCE_VERSION:=48979385757f3408c3427b3ebbf5963efdada5aa
-PKG_MIRROR_HASH:=0e8ed53f55e28ad0c30f20293c16988876bae8d6f70f5629a43cf2ce1e49fc51
-PKG_MAINTAINER:=Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
-
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/sched-cake-oot
-  SUBMENU:=Network Support
-  TITLE:=OOT Cake fq_codel/blue derived shaper
-  URL:=https://github.com/dtaht/sch_cake
-  FILES:=$(PKG_BUILD_DIR)/sch_cake.ko
-  AUTOLOAD:=$(call AutoLoad,75,sch_cake)
-  DEPENDS:=@LINUX_4_14 +kmod-sched-core +kmod-ipt-conntrack
-endef
-
-define KernelPackage/sched-cake-oot/description
-  O(ut) O(f) T(ree) Common Applications Kept Enhanced fq_codel/blue derived shaper
-endef
-
-define KernelPackage/sched-cake-virtual
-  SUBMENU:=Network Support
-  TITLE:=Virtual package for sched-cake
-  URL:=https://github.com/dtaht/sch_cake
-  DEPENDS:=+!LINUX_4_14:kmod-sched-cake +LINUX_4_14:kmod-sched-cake-oot
-endef
-
-define KernelPackage/sched-cake-virtual/description
-  Virtual package for resolving sch_cake dependencies
-endef
-
-include $(INCLUDE_DIR)/kernel-defaults.mk
-
-define Build/Compile
-	$(KERNEL_MAKE) M="$(PKG_BUILD_DIR)" modules
-endef
-
-$(eval $(call KernelPackage,sched-cake-oot))
-$(eval $(call KernelPackage,sched-cake-virtual))
diff --git a/package/kernel/lantiq/ltq-adsl-mei/src/ifxmips_mei_interface.h b/package/kernel/lantiq/ltq-adsl-mei/src/ifxmips_mei_interface.h
index 4d0d363f0e..e5089c43a3 100644
--- a/package/kernel/lantiq/ltq-adsl-mei/src/ifxmips_mei_interface.h
+++ b/package/kernel/lantiq/ltq-adsl-mei/src/ifxmips_mei_interface.h
@@ -111,11 +111,7 @@ static inline long
 ugly_hack_sleep_on_timeout(wait_queue_head_t *q, long timeout)
 {
 	unsigned long flags;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,13,0))
 	wait_queue_entry_t wait;
-#else
-	wait_queue_t wait;
-#endif
 
 	init_waitqueue_entry(&wait, current);
 
diff --git a/package/kernel/lantiq/ltq-atm/Makefile b/package/kernel/lantiq/ltq-atm/Makefile
index 455d7b25e3..89a3328cf8 100644
--- a/package/kernel/lantiq/ltq-atm/Makefile
+++ b/package/kernel/lantiq/ltq-atm/Makefile
@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=ltq-atm
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_MAINTAINER:=John Crispin <john@phrozen.org>
 PKG_LICENSE:=GPL-2.0+
diff --git a/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_vr9.c b/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_vr9.c
index 8638b12b4e..85f27156b5 100644
--- a/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_vr9.c
+++ b/package/kernel/lantiq/ltq-atm/src/ifxmips_atm_vr9.c
@@ -60,7 +60,6 @@
 
 static inline void vr9_reset_ppe(struct platform_device *pdev)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
 	struct device *dev = &pdev->dev;
 	struct reset_control *dsp;
 	struct reset_control *dfe;
@@ -97,7 +96,6 @@ static inline void vr9_reset_ppe(struct platform_device *pdev)
 	udelay(1000);
 	*PP32_SRST |= 0x000303CF;
 	udelay(1000);
-#endif
 }
 
 static inline int vr9_pp32_download_code(int pp32, u32 *code_src, unsigned int code_dword_len, u32 *data_src, unsigned int data_dword_len)
diff --git a/package/kernel/lantiq/ltq-atm/src/ltq_atm.c b/package/kernel/lantiq/ltq-atm/src/ltq_atm.c
index f5dbfaae2d..55362a5c7b 100644
--- a/package/kernel/lantiq/ltq-atm/src/ltq_atm.c
+++ b/package/kernel/lantiq/ltq-atm/src/ltq_atm.c
@@ -289,17 +289,9 @@ static int ppe_ioctl(struct atm_dev *dev, unsigned int cmd, void *arg)
 		return -ENOTTY;
 
 	if ( _IOC_DIR(cmd) & _IOC_READ )
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
 		ret = !access_ok(arg, _IOC_SIZE(cmd));
-#else
-		ret = !access_ok(VERIFY_WRITE, arg, _IOC_SIZE(cmd));
-#endif
 	else if ( _IOC_DIR(cmd) & _IOC_WRITE )
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0)
 		ret = !access_ok(arg, _IOC_SIZE(cmd));
-#else
-		ret = !access_ok(VERIFY_READ, arg, _IOC_SIZE(cmd));
-#endif
 	if ( ret )
 		return -EFAULT;
 
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_deu_dma.h b/package/kernel/lantiq/ltq-deu/src/ifxmips_deu_dma.h
index b64d74776b..7a1b85f1d1 100644
--- a/package/kernel/lantiq/ltq-deu/src/ifxmips_deu_dma.h
+++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_deu_dma.h
@@ -54,11 +54,7 @@ typedef struct ifx_deu_device {
 	int recv_count;
 	int packet_size;
 	int packet_num;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,13,0))
 	wait_queue_entry_t wait;
-#else
-	wait_queue_t wait;
-#endif
 } _ifx_deu_device;
 
 extern _ifx_deu_device ifx_deu[1];
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
index 78c8a3fecd..18c715a290 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
@@ -126,9 +126,6 @@ static int ptm_stop(struct net_device *);
   static unsigned int ptm_poll(int, unsigned int);
   static int ptm_napi_poll(struct napi_struct *, int);
 static int ptm_hard_start_xmit(struct sk_buff *, struct net_device *);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
-static int ptm_change_mtu(struct net_device *, int);
-#endif
 static int ptm_ioctl(struct net_device *, struct ifreq *, int);
 static void ptm_tx_timeout(struct net_device *);
 
@@ -246,9 +243,6 @@ static struct net_device_ops g_ptm_netdev_ops = {
     .ndo_start_xmit      = ptm_hard_start_xmit,
     .ndo_validate_addr   = eth_validate_addr,
     .ndo_set_mac_address = eth_mac_addr,
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
-    .ndo_change_mtu      = ptm_change_mtu,
-#endif
     .ndo_do_ioctl        = ptm_ioctl,
     .ndo_tx_timeout      = ptm_tx_timeout,
 };
@@ -285,10 +279,8 @@ static void ptm_setup(struct net_device *dev, int ndev)
 
     /*  hook network operations */
     dev->netdev_ops      = &g_ptm_netdev_ops;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
     /* Allow up to 1508 bytes, for RFC4638 */
     dev->max_mtu         = ETH_DATA_LEN + 8;
-#endif
     netif_napi_add(dev, &g_ptm_priv_data.itf[ndev].napi, ptm_napi_poll, 25);
     dev->watchdog_timeo  = ETH_WATCHDOG_TIMEOUT;
 
@@ -455,16 +447,6 @@ PTM_HARD_START_XMIT_FAIL:
     g_ptm_priv_data.itf[ndev].stats.tx_dropped++;
     return NETDEV_TX_OK;
 }
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
-static int ptm_change_mtu(struct net_device *dev, int mtu)
-{
-	/* Allow up to 1508 bytes, for RFC4638 */
-        if (mtu < 68 || mtu > ETH_DATA_LEN + 8)
-                return -EINVAL;
-        dev->mtu = mtu;
-        return 0;
-}
-#endif
 
 static int ptm_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
@@ -651,10 +633,6 @@ static INLINE int mailbox_rx_irq_handler(unsigned int ch)   //  return: < 0 - de
             skb->dev = g_net_dev[ndev];
             skb->protocol = eth_type_trans(skb, skb->dev);
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,11,0))
-            g_net_dev[ndev]->last_rx = jiffies;
-#endif
-
             netif_rx_ret = netif_receive_skb(skb);
 
             if ( netif_rx_ret != NET_RX_DROP ) {
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
index 9c486c7262..f77f475656 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
@@ -76,9 +76,6 @@ static int ptm_stop(struct net_device *);
   static unsigned int ptm_poll(int, unsigned int);
   static int ptm_napi_poll(struct napi_struct *, int);
 static int ptm_hard_start_xmit(struct sk_buff *, struct net_device *);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
-static int ptm_change_mtu(struct net_device *, int);
-#endif
 static int ptm_ioctl(struct net_device *, struct ifreq *, int);
 static void ptm_tx_timeout(struct net_device *);
 
@@ -119,9 +116,6 @@ static struct net_device_ops g_ptm_netdev_ops = {
     .ndo_start_xmit      = ptm_hard_start_xmit,
     .ndo_validate_addr   = eth_validate_addr,
     .ndo_set_mac_address = eth_mac_addr,
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
-    .ndo_change_mtu      = ptm_change_mtu,
-#endif
     .ndo_do_ioctl        = ptm_ioctl,
     .ndo_tx_timeout      = ptm_tx_timeout,
 };
@@ -147,10 +141,8 @@ static void ptm_setup(struct net_device *dev, int ndev)
     netif_carrier_off(dev);
 
     dev->netdev_ops      = &g_ptm_netdev_ops;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
     /* Allow up to 1508 bytes, for RFC4638 */
     dev->max_mtu         = ETH_DATA_LEN + 8;
-#endif
     netif_napi_add(dev, &g_ptm_priv_data.itf[ndev].napi, ptm_napi_poll, 16);
     dev->watchdog_timeo  = ETH_WATCHDOG_TIMEOUT;
 
@@ -228,10 +220,6 @@ static unsigned int ptm_poll(int ndev, unsigned int work_to_do)
             skb->dev = g_net_dev[0];
             skb->protocol = eth_type_trans(skb, skb->dev);
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,11,0))
-            g_net_dev[0]->last_rx = jiffies;
-#endif
-
             netif_receive_skb(skb);
 
             g_ptm_priv_data.itf[0].stats.rx_packets++;
@@ -374,17 +362,6 @@ PTM_HARD_START_XMIT_FAIL:
     return 0;
 }
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,10,0))
-static int ptm_change_mtu(struct net_device *dev, int mtu)
-{
-	/* Allow up to 1508 bytes, for RFC4638 */
-        if (mtu < 68 || mtu > ETH_DATA_LEN + 8)
-                return -EINVAL;
-        dev->mtu = mtu;
-        return 0;
-}
-#endif
-
 static int ptm_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
     ASSERT(dev == g_net_dev[0], "incorrect device");
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vr9.c b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vr9.c
index cf0897b563..bf93437fb0 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vr9.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vr9.c
@@ -84,7 +84,6 @@ static inline void uninit_pmu(void)
 
 static inline void reset_ppe(struct platform_device *pdev)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
 	struct device *dev = &pdev->dev;
 	struct reset_control *dsp;
 	struct reset_control *dfe;
@@ -121,7 +120,6 @@ static inline void reset_ppe(struct platform_device *pdev)
 	udelay(1000);
 	*PP32_SRST |= 0x000303CF;
 	udelay(1000);
-#endif
 }
 
 static inline void init_pdma(void)
diff --git a/package/kernel/lantiq/ltq-vdsl-fw/src/vdsl_fw_install.sh b/package/kernel/lantiq/ltq-vdsl-fw/src/vdsl_fw_install.sh
index e372e95c57..3d3e5aebee 100755
--- a/package/kernel/lantiq/ltq-vdsl-fw/src/vdsl_fw_install.sh
+++ b/package/kernel/lantiq/ltq-vdsl-fw/src/vdsl_fw_install.sh
@@ -25,7 +25,7 @@ MD5_DSL="655442e31deaa42c9c68944869361ec0"
 	[ $? -eq 0 -a -f "${FW}" ] || exit 1
 }
 
-F=`md5sum -b ${FW} | cut -d" " -f1`
+F=$(md5sum -b ${FW} | cut -d" " -f1)
 [ "$F" = "${MD5_FW}" ] || {
 	echo "Failed to verify Firmware MD5"
 	exit 1
@@ -37,8 +37,8 @@ echo "Unpack and decompress w921v Firmware"
 w921v_fw_cutter
 [ $? -eq 0 ] || exit 1
 
-T=`md5sum -b ${FW_TAPI} | cut -d" " -f1`
-D=`md5sum -b ${FW_DSL} | cut -d" " -f1`
+T=$(md5sum -b ${FW_TAPI} | cut -d" " -f1)
+D=$(md5sum -b ${FW_DSL} | cut -d" " -f1)
 
 [ "$T" = "${MD5_TAPI}" -a "$D" = "${MD5_DSL}" ] || {
 	echo "Failed to verify MD5"
diff --git a/package/kernel/linux/modules/can.mk b/package/kernel/linux/modules/can.mk
index 3bf0359c11..58c257db5b 100644
--- a/package/kernel/linux/modules/can.mk
+++ b/package/kernel/linux/modules/can.mk
@@ -248,8 +248,7 @@ define KernelPackage/can-usb-kvaser
   TITLE:=Kvaser CAN/USB interface
   KCONFIG:=CONFIG_CAN_KVASER_USB
   FILES:= \
-	$(LINUX_DIR)/drivers/net/can/usb/kvaser_usb.ko@lt4.19 \
-	$(LINUX_DIR)/drivers/net/can/usb/kvaser_usb/kvaser_usb.ko@ge4.19
+	$(LINUX_DIR)/drivers/net/can/usb/kvaser_usb/kvaser_usb.ko
   AUTOLOAD:=$(call AutoProbe,kvaser_usb)
   $(call AddDepends/can,+kmod-usb-core)
 endef
diff --git a/package/kernel/linux/modules/crypto.mk b/package/kernel/linux/modules/crypto.mk
index 1d5c955304..e9e78e7967 100644
--- a/package/kernel/linux/modules/crypto.mk
+++ b/package/kernel/linux/modules/crypto.mk
@@ -132,7 +132,7 @@ $(eval $(call KernelPackage,crypto-crc32c))
 
 define KernelPackage/crypto-ctr
   TITLE:=Counter Mode CryptoAPI module
-  DEPENDS:=+kmod-crypto-manager +kmod-crypto-seqiv +kmod-crypto-iv
+  DEPENDS:=+kmod-crypto-manager +kmod-crypto-seqiv
   KCONFIG:=CONFIG_CRYPTO_CTR
   FILES:=$(LINUX_DIR)/crypto/ctr.ko
   AUTOLOAD:=$(call AutoLoad,09,ctr)
@@ -171,7 +171,7 @@ define KernelPackage/crypto-des
   KCONFIG:=CONFIG_CRYPTO_DES
   FILES:= \
 	$(LINUX_DIR)/crypto/des_generic.ko \
-	$(LINUX_DIR)/lib/crypto/libdes.ko@ge5.4
+	$(LINUX_DIR)/lib/crypto/libdes.ko
   AUTOLOAD:=$(call AutoLoad,09,des_generic)
   $(call AddDepends/crypto)
 endef
@@ -197,7 +197,7 @@ define KernelPackage/crypto-ecdh
   KCONFIG:= CONFIG_CRYPTO_ECDH
   FILES:= \
 	$(LINUX_DIR)/crypto/ecdh_generic.ko \
-	$(LINUX_DIR)/crypto/ecc.ko@ge5.2
+	$(LINUX_DIR)/crypto/ecc.ko
   AUTOLOAD:=$(call AutoLoad,10,ecdh_generic)
   $(call AddDepends/crypto)
 endef
@@ -377,7 +377,7 @@ $(eval $(call KernelPackage,crypto-hw-padlock))
 
 define KernelPackage/crypto-hw-safexcel
   TITLE:= MVEBU SafeXcel Crypto Engine module
-  DEPENDS:=@!LINUX_4_14 @(TARGET_mvebu_cortexa53||TARGET_mvebu_cortexa72) +eip197-mini-firmware \
+  DEPENDS:=@(TARGET_mvebu_cortexa53||TARGET_mvebu_cortexa72) +eip197-mini-firmware \
 	+kmod-crypto-authenc +kmod-crypto-md5 +kmod-crypto-hmac +kmod-crypto-sha256 +kmod-crypto-sha512
   KCONFIG:= \
 	CONFIG_CRYPTO_HW=y \
@@ -418,19 +418,6 @@ endef
 
 $(eval $(call KernelPackage,crypto-hw-talitos))
 
-define KernelPackage/crypto-iv
-  TITLE:=CryptoAPI initialization vectors
-  DEPENDS:=+kmod-crypto-manager +kmod-crypto-rng +kmod-crypto-wq
-  KCONFIG:= CONFIG_CRYPTO_BLKCIPHER2
-  HIDDEN:=1
-  FILES:= \
-	$(LINUX_DIR)/crypto/eseqiv.ko@lt4.9 \
-	$(LINUX_DIR)/crypto/chainiv.ko@lt4.9
-  AUTOLOAD:=$(call AutoLoad,10,eseqiv chainiv)
-  $(call AddDepends/crypto)
-endef
-
-$(eval $(call KernelPackage,crypto-iv))
 
 define KernelPackage/crypto-kpp
   TITLE:=Key-agreement Protocol Primitives
@@ -562,10 +549,8 @@ ifndef CONFIG_TARGET_x86_64
 	$(LINUX_DIR)/arch/x86/crypto/twofish-i586.ko \
 	$(LINUX_DIR)/arch/x86/crypto/serpent-sse2-i586.ko \
 	$(LINUX_DIR)/arch/x86/crypto/glue_helper.ko \
-	$(LINUX_DIR)/crypto/ablk_helper.ko@lt4.17 \
 	$(LINUX_DIR)/crypto/cryptd.ko \
-	$(LINUX_DIR)/crypto/lrw.ko@lt4.17 \
-	$(LINUX_DIR)/crypto/crypto_simd.ko@ge4.17
+	$(LINUX_DIR)/crypto/crypto_simd.ko
     AUTOLOAD+= $(call AutoLoad,10,cryptd glue_helper \
 	serpent-sse2-i586 twofish-i586 blowfish_generic)
   endef
@@ -584,8 +569,7 @@ define KernelPackage/crypto-misc/x86/64
 	$(LINUX_DIR)/arch/x86/crypto/twofish-avx-x86_64.ko \
 	$(LINUX_DIR)/arch/x86/crypto/serpent-avx-x86_64.ko \
 	$(LINUX_DIR)/arch/x86/crypto/camellia-aesni-avx2.ko \
-	$(LINUX_DIR)/arch/x86/crypto/serpent-avx2.ko \
-	$(LINUX_DIR)/crypto/ablk_helper.ko@lt4.17
+	$(LINUX_DIR)/arch/x86/crypto/serpent-avx2.ko
   AUTOLOAD+= $(call AutoLoad,10,camellia-x86_64 \
 	camellia-aesni-avx-x86_64 camellia-aesni-avx2 cast5-avx-x86_64 \
 	cast6-avx-x86_64 twofish-x86_64 twofish-x86_64-3way \
@@ -745,7 +729,7 @@ define KernelPackage/crypto-sha256
 	CONFIG_CRYPTO_SHA256_SSSE3
   FILES:= \
 	$(LINUX_DIR)/crypto/sha256_generic.ko \
-	$(LINUX_DIR)/lib/crypto/libsha256.ko@ge5.4
+	$(LINUX_DIR)/lib/crypto/libsha256.ko
   AUTOLOAD:=$(call AutoLoad,09,sha256_generic)
   $(call AddDepends/crypto)
 endef
diff --git a/package/kernel/linux/modules/fs.mk b/package/kernel/linux/modules/fs.mk
index 62c42996e8..18976a7941 100644
--- a/package/kernel/linux/modules/fs.mk
+++ b/package/kernel/linux/modules/fs.mk
@@ -53,8 +53,7 @@ define KernelPackage/fs-autofs4
 	CONFIG_AUTOFS4_FS \
 	CONFIG_AUTOFS_FS
   FILES:= \
-	$(LINUX_DIR)/fs/autofs4/autofs4.ko@lt4.18 \
-	$(LINUX_DIR)/fs/autofs/autofs4.ko@ge4.18
+	$(LINUX_DIR)/fs/autofs/autofs4.ko
   AUTOLOAD:=$(call AutoLoad,30,autofs4)
 endef
 
@@ -205,7 +204,7 @@ $(eval $(call KernelPackage,fs-ext4))
 define KernelPackage/fs-f2fs
   SUBMENU:=$(FS_MENU)
   TITLE:=F2FS filesystem support
-  DEPENDS:= +kmod-crypto-hash +kmod-crypto-crc32 +LINUX_5_4:kmod-nls-base
+  DEPENDS:= +kmod-crypto-hash +kmod-crypto-crc32 +kmod-nls-base
   KCONFIG:=CONFIG_F2FS_FS
   FILES:=$(LINUX_DIR)/fs/f2fs/f2fs.ko
   AUTOLOAD:=$(call AutoLoad,30,f2fs,1)
diff --git a/package/kernel/linux/modules/iio.mk b/package/kernel/linux/modules/iio.mk
index ab14e97a05..8edb099edd 100644
--- a/package/kernel/linux/modules/iio.mk
+++ b/package/kernel/linux/modules/iio.mk
@@ -159,7 +159,7 @@ $(eval $(call KernelPackage,iio-dht11))
 define KernelPackage/iio-bme680
   SUBMENU:=$(IIO_MENU)
   TITLE:=BME680 gas/humidity/pressure/temperature sensor
-  DEPENDS:=@!LINUX_4_14 +kmod-iio-core +kmod-regmap-core
+  DEPENDS:=+kmod-iio-core +kmod-regmap-core
   KCONFIG:=CONFIG_BME680
   FILES:=$(LINUX_DIR)/drivers/iio/chemical/bme680_core.ko
 endef
@@ -414,7 +414,7 @@ $(eval $(call KernelPackage,iio-lsm6dsx-spi))
 
 define KernelPackage/iio-sps30
   SUBMENU:=$(IIO_MENU)
-  DEPENDS:=@!LINUX_4_14 +kmod-i2c-core +kmod-iio-core +kmod-industrialio-triggered-buffer +kmod-lib-crc8
+  DEPENDS:=+kmod-i2c-core +kmod-iio-core +kmod-industrialio-triggered-buffer +kmod-lib-crc8
   TITLE:=Sensirion SPS30 particulate matter sensor
   KCONFIG:=CONFIG_SPS30
   FILES:=$(LINUX_DIR)/drivers/iio/chemical/sps30.ko
diff --git a/package/kernel/linux/modules/input.mk b/package/kernel/linux/modules/input.mk
index 0f6e4d507b..c2f39ddd90 100644
--- a/package/kernel/linux/modules/input.mk
+++ b/package/kernel/linux/modules/input.mk
@@ -182,7 +182,7 @@ define KernelPackage/input-touchscreen-ads7846
 	CONFIG_TOUCHSCREEN_PROPERTIES=y \
 	CONFIG_TOUCHSCREEN_ADS7846
   FILES:=$(LINUX_DIR)/drivers/input/touchscreen/ads7846.ko \
-	$(LINUX_DIR)/drivers/input/touchscreen/of_touchscreen.ko@ge5.4
+	$(LINUX_DIR)/drivers/input/touchscreen/of_touchscreen.ko
   AUTOLOAD:=$(call AutoProbe,ads7846)
 endef
 
diff --git a/package/kernel/linux/modules/lib.mk b/package/kernel/linux/modules/lib.mk
index 1289cc1f25..43d3ca5538 100644
--- a/package/kernel/linux/modules/lib.mk
+++ b/package/kernel/linux/modules/lib.mk
@@ -250,8 +250,7 @@ define KernelPackage/lib-cordic
   SUBMENU:=$(LIB_MENU)
   TITLE:=Cordic function support
   KCONFIG:=CONFIG_CORDIC
-  FILES:=$(LINUX_DIR)/lib/cordic.ko@lt5.2 \
-	  $(LINUX_DIR)/lib/math/cordic.ko@ge5.2
+  FILES:=$(LINUX_DIR)/lib/math/cordic.ko
   AUTOLOAD:=$(call AutoProbe,cordic)
 endef
 
diff --git a/package/kernel/linux/modules/netdevices.mk b/package/kernel/linux/modules/netdevices.mk
index ecc4c5efcf..fbb266d4f8 100644
--- a/package/kernel/linux/modules/netdevices.mk
+++ b/package/kernel/linux/modules/netdevices.mk
@@ -111,7 +111,7 @@ $(eval $(call KernelPackage,libphy))
 define KernelPackage/phylink
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Model for MAC to optional PHY connection
-  DEPENDS:=+LINUX_5_4:kmod-libphy
+  DEPENDS:=+kmod-libphy
   KCONFIG:=CONFIG_PHYLINK
   FILES:=$(LINUX_DIR)/drivers/net/phy/phylink.ko
   AUTOLOAD:=$(call AutoLoad,15,phylink,1)
@@ -142,7 +142,7 @@ $(eval $(call KernelPackage,mii))
 define KernelPackage/mdio-gpio
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:= Supports GPIO lib-based MDIO busses
-  DEPENDS:=+kmod-libphy @GPIO_SUPPORT +(TARGET_armvirt||TARGET_bcm27xx_bcm2708||TARGET_samsung||TARGET_tegra):kmod-of-mdio
+  DEPENDS:=+kmod-libphy @GPIO_SUPPORT +(TARGET_armvirt||TARGET_bcm27xx_bcm2708||TARGET_tegra):kmod-of-mdio
   KCONFIG:= \
 	CONFIG_MDIO_BITBANG \
 	CONFIG_MDIO_GPIO
@@ -337,7 +337,7 @@ $(eval $(call KernelPackage,switch-rtl8306))
 define KernelPackage/switch-rtl8366-smi
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Realtek RTL8366 SMI switch interface support
-  DEPENDS:=@GPIO_SUPPORT +kmod-swconfig +(TARGET_armvirt||TARGET_bcm27xx_bcm2708||TARGET_samsung||TARGET_tegra):kmod-of-mdio
+  DEPENDS:=@GPIO_SUPPORT +kmod-swconfig +(TARGET_armvirt||TARGET_bcm27xx_bcm2708||TARGET_tegra):kmod-of-mdio
   KCONFIG:=CONFIG_RTL8366_SMI
   FILES:=$(LINUX_DIR)/drivers/net/phy/rtl8366_smi.ko
   AUTOLOAD:=$(call AutoLoad,42,rtl8366_smi,1)
@@ -558,7 +558,7 @@ $(eval $(call KernelPackage,8139cp))
 define KernelPackage/r8169
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=RealTek RTL-8169 PCI Gigabit Ethernet Adapter kernel support
-  DEPENDS:=@PCI_SUPPORT +kmod-mii +r8169-firmware +!LINUX_4_14:kmod-phy-realtek
+  DEPENDS:=@PCI_SUPPORT +kmod-mii +r8169-firmware +kmod-phy-realtek
   KCONFIG:=CONFIG_R8169 \
     CONFIG_R8169_NAPI=y \
     CONFIG_R8169_VLAN=n
@@ -683,7 +683,7 @@ $(eval $(call KernelPackage,igbvf))
 define KernelPackage/ixgbe
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Intel(R) 82598/82599 PCI-Express 10 Gigabit Ethernet support
-  DEPENDS:=@PCI_SUPPORT +kmod-mdio +kmod-ptp +kmod-hwmon-core +LINUX_5_4:kmod-libphy
+  DEPENDS:=@PCI_SUPPORT +kmod-mdio +kmod-ptp +kmod-hwmon-core +kmod-libphy
   KCONFIG:=CONFIG_IXGBE \
     CONFIG_IXGBE_VXLAN=n \
     CONFIG_IXGBE_HWMON=y \
@@ -721,7 +721,7 @@ $(eval $(call KernelPackage,ixgbevf))
 define KernelPackage/i40e
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Intel(R) Ethernet Controller XL710 Family support
-  DEPENDS:=@PCI_SUPPORT +kmod-mdio +kmod-ptp +kmod-hwmon-core +LINUX_5_4:kmod-libphy
+  DEPENDS:=@PCI_SUPPORT +kmod-mdio +kmod-ptp +kmod-hwmon-core +kmod-libphy
   KCONFIG:=CONFIG_I40E \
     CONFIG_I40E_VXLAN=n \
     CONFIG_I40E_HWMON=y \
@@ -745,8 +745,7 @@ define KernelPackage/iavf
        CONFIG_I40EVF \
        CONFIG_IAVF
   FILES:= \
-       $(LINUX_DIR)/drivers/net/ethernet/intel/i40evf/i40evf.ko@lt4.20 \
-       $(LINUX_DIR)/drivers/net/ethernet/intel/iavf/iavf.ko@ge4.20
+       $(LINUX_DIR)/drivers/net/ethernet/intel/iavf/iavf.ko
   AUTOLOAD:=$(call AutoProbe,i40evf iavf)
   AUTOLOAD:=$(call AutoProbe,iavf)
 endef
@@ -1228,7 +1227,7 @@ $(eval $(call KernelPackage,sfc))
 define KernelPackage/sfp
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=SFP cage support
-  DEPENDS:=+kmod-i2c-core +kmod-hwmon-core +kmod-phylink +LINUX_5_4:kmod-libphy
+  DEPENDS:=+kmod-i2c-core +kmod-hwmon-core +kmod-phylink +kmod-libphy
   KCONFIG:= \
 	CONFIG_SFP \
 	CONFIG_MDIO_I2C
@@ -1247,7 +1246,7 @@ $(eval $(call KernelPackage,sfp))
 define KernelPackage/igc
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Intel(R) Ethernet Controller I225 Series support
-  DEPENDS:=@PCI_SUPPORT @LINUX_5_4
+  DEPENDS:=@PCI_SUPPORT
   KCONFIG:=CONFIG_IGC
   FILES:=$(LINUX_DIR)/drivers/net/ethernet/intel/igc/igc.ko
   AUTOLOAD:=$(call AutoProbe,igc)
diff --git a/package/kernel/linux/modules/netfilter.mk b/package/kernel/linux/modules/netfilter.mk
index 779a71b594..07ee248b5a 100644
--- a/package/kernel/linux/modules/netfilter.mk
+++ b/package/kernel/linux/modules/netfilter.mk
@@ -368,7 +368,7 @@ IPVS_MODULES:= \
 define KernelPackage/nf-ipvs
   SUBMENU:=Netfilter Extensions
   TITLE:=IP Virtual Server modules
-  DEPENDS:=@IPV6 +kmod-lib-crc32c +kmod-ipt-conntrack +kmod-nf-conntrack +LINUX_4_14:kmod-nf-conntrack6
+  DEPENDS:=@IPV6 +kmod-lib-crc32c +kmod-ipt-conntrack +kmod-nf-conntrack
   KCONFIG:= \
 	CONFIG_IP_VS \
 	CONFIG_IP_VS_IPV6=y \
@@ -625,7 +625,7 @@ define KernelPackage/nf-nathelper-extra
   KCONFIG:=$(KCONFIG_NF_NATHELPER_EXTRA)
   FILES:=$(foreach mod,$(NF_NATHELPER_EXTRA-m),$(LINUX_DIR)/net/$(mod).ko)
   AUTOLOAD:=$(call AutoProbe,$(notdir $(NF_NATHELPER_EXTRA-m)))
-  DEPENDS:=+kmod-nf-nat +kmod-lib-textsearch +kmod-ipt-raw +!LINUX_4_14:kmod-asn1-decoder
+  DEPENDS:=+kmod-nf-nat +kmod-lib-textsearch +kmod-ipt-raw +kmod-asn1-decoder
 endef
 
 define KernelPackage/nf-nathelper-extra/description
@@ -1135,7 +1135,7 @@ $(eval $(call KernelPackage,ipt-rpfilter))
 define KernelPackage/nft-core
   SUBMENU:=$(NF_MENU)
   TITLE:=Netfilter nf_tables support
-  DEPENDS:=+kmod-nfnetlink +kmod-nf-reject +IPV6:kmod-nf-reject6 +IPV6:kmod-nf-conntrack6 +LINUX_5_4:kmod-nf-nat
+  DEPENDS:=+kmod-nfnetlink +kmod-nf-reject +IPV6:kmod-nf-reject6 +IPV6:kmod-nf-conntrack6 +kmod-nf-nat
   FILES:=$(foreach mod,$(NFT_CORE-m),$(LINUX_DIR)/net/$(mod).ko)
   AUTOLOAD:=$(call AutoProbe,$(notdir $(NFT_CORE-m)))
   KCONFIG:= \
@@ -1231,7 +1231,6 @@ define KernelPackage/nft-netdev
 	CONFIG_NFT_DUP_NETDEV \
 	CONFIG_NFT_FWD_NETDEV
   FILES:= \
-	$(LINUX_DIR)/net/netfilter/nf_tables_netdev.ko@lt4.17 \
 	$(LINUX_DIR)/net/netfilter/nf_dup_netdev.ko \
 	$(LINUX_DIR)/net/netfilter/nft_dup_netdev.ko \
 	$(LINUX_DIR)/net/netfilter/nft_fwd_netdev.ko
diff --git a/package/kernel/linux/modules/netsupport.mk b/package/kernel/linux/modules/netsupport.mk
index ea674799a4..75801114da 100644
--- a/package/kernel/linux/modules/netsupport.mk
+++ b/package/kernel/linux/modules/netsupport.mk
@@ -246,7 +246,7 @@ define KernelPackage/ipsec
   DEPENDS:= \
 	+kmod-crypto-authenc +kmod-crypto-cbc +kmod-crypto-deflate \
 	+kmod-crypto-des +kmod-crypto-echainiv +kmod-crypto-hmac \
-	+kmod-crypto-iv +kmod-crypto-md5 +kmod-crypto-sha1
+	+kmod-crypto-md5 +kmod-crypto-sha1
   KCONFIG:= \
 	CONFIG_NET_KEY \
 	CONFIG_XFRM_USER \
@@ -399,7 +399,7 @@ $(eval $(call KernelPackage,ip6-vti))
 define KernelPackage/xfrm-interface
   SUBMENU:=$(NETWORK_SUPPORT_MENU)
   TITLE:=IPsec XFRM Interface
-  DEPENDS:=+kmod-ipsec4 +IPV6:kmod-ipsec6 @!LINUX_4_14
+  DEPENDS:=+kmod-ipsec4 +IPV6:kmod-ipsec6
   KCONFIG:=CONFIG_XFRM_INTERFACE
   FILES:=$(LINUX_DIR)/net/xfrm/xfrm_interface.ko
   AUTOLOAD:=$(call AutoProbe,xfrm_interface)
@@ -788,7 +788,7 @@ $(eval $(call KernelPackage,sched-core))
 define KernelPackage/sched-cake
   SUBMENU:=$(NETWORK_SUPPORT_MENU)
   TITLE:=Cake fq_codel/blue derived shaper
-  DEPENDS:=@!LINUX_4_14 +kmod-sched-core
+  DEPENDS:=+kmod-sched-core
   KCONFIG:=CONFIG_NET_SCH_CAKE
   FILES:=$(LINUX_DIR)/net/sched/sch_cake.ko
   AUTOLOAD:=$(call AutoProbe,sch_cake)
@@ -1155,7 +1155,7 @@ $(eval $(call KernelPackage,rxrpc))
 define KernelPackage/mpls
   SUBMENU:=$(NETWORK_SUPPORT_MENU)
   TITLE:=MPLS support
-  DEPENDS:=+!LINUX_4_14:kmod-iptunnel
+  DEPENDS:=+kmod-iptunnel
   KCONFIG:= \
 	CONFIG_MPLS=y \
 	CONFIG_LWTUNNEL=y \
diff --git a/package/kernel/linux/modules/other.mk b/package/kernel/linux/modules/other.mk
index 45729e6d79..41de6ac2ba 100644
--- a/package/kernel/linux/modules/other.mk
+++ b/package/kernel/linux/modules/other.mk
@@ -136,21 +136,6 @@ endef
 $(eval $(call KernelPackage,dma-buf))
 
 
-define KernelPackage/nvmem
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=Non Volatile Memory support
-  DEPENDS:=@!LINUX_5_4
-  KCONFIG:=CONFIG_NVMEM
-  HIDDEN:=1
-  FILES:=$(LINUX_DIR)/drivers/nvmem/nvmem_core.ko
-endef
-
-define KernelPackage/nvmem/description
-  Support for NVMEM(Non Volatile Memory) devices like EEPROM, EFUSES, etc.
-endef
-
-$(eval $(call KernelPackage,nvmem))
-
 define KernelPackage/eeprom-93cx6
   SUBMENU:=$(OTHER_MENU)
   TITLE:=EEPROM 93CX6 support
@@ -170,7 +155,7 @@ define KernelPackage/eeprom-at24
   SUBMENU:=$(OTHER_MENU)
   TITLE:=EEPROM AT24 support
   KCONFIG:=CONFIG_EEPROM_AT24
-  DEPENDS:=+kmod-i2c-core +!LINUX_5_4:kmod-nvmem +!LINUX_4_14:kmod-regmap-i2c
+  DEPENDS:=+kmod-i2c-core +kmod-regmap-i2c
   FILES:=$(LINUX_DIR)/drivers/misc/eeprom/at24.ko
   AUTOLOAD:=$(call AutoProbe,at24)
 endef
@@ -186,7 +171,6 @@ define KernelPackage/eeprom-at25
   SUBMENU:=$(OTHER_MENU)
   TITLE:=EEPROM AT25 support
   KCONFIG:=CONFIG_EEPROM_AT25
-  DEPENDS:=+!LINUX_5_4:kmod-nvmem
   FILES:=$(LINUX_DIR)/drivers/misc/eeprom/at25.ko
   AUTOLOAD:=$(call AutoProbe,at25)
 endef
@@ -265,7 +249,7 @@ $(eval $(call KernelPackage,gpio-nxp-74hc164))
 
 define KernelPackage/gpio-pca953x
   SUBMENU:=$(OTHER_MENU)
-  DEPENDS:=@GPIO_SUPPORT +kmod-i2c-core +LINUX_5_4:kmod-regmap-i2c
+  DEPENDS:=@GPIO_SUPPORT +kmod-i2c-core +kmod-regmap-i2c
   TITLE:=PCA95xx, TCA64xx, and MAX7310 I/O ports
   KCONFIG:=CONFIG_GPIO_PCA953X
   FILES:=$(LINUX_DIR)/drivers/gpio/gpio-pca953x.ko
@@ -651,7 +635,7 @@ define KernelPackage/rtc-pcf2123
   SUBMENU:=$(OTHER_MENU)
   TITLE:=Philips PCF2123 RTC support
   DEFAULT:=m if ALL_KMODS && RTC_SUPPORT
-  DEPENDS:=+LINUX_5_4:kmod-regmap-spi
+  DEPENDS:=+kmod-regmap-spi
   KCONFIG:=CONFIG_RTC_DRV_PCF2123 \
 	CONFIG_RTC_CLASS=y
   FILES:=$(LINUX_DIR)/drivers/rtc/rtc-pcf2123.ko
@@ -818,7 +802,7 @@ define KernelPackage/serial-8250
 	$(LINUX_DIR)/drivers/tty/serial/8250/8250.ko \
 	$(LINUX_DIR)/drivers/tty/serial/8250/8250_base.ko \
 	$(if $(CONFIG_PCI),$(LINUX_DIR)/drivers/tty/serial/8250/8250_pci.ko) \
-	$(if $(CONFIG_GPIOLIB),$(LINUX_DIR)/drivers/tty/serial/serial_mctrl_gpio.ko@ge5.3)
+	$(if $(CONFIG_GPIOLIB),$(LINUX_DIR)/drivers/tty/serial/serial_mctrl_gpio.ko)
   AUTOLOAD:=$(call AutoProbe,8250 8250_base 8250_pci)
 endef
 
@@ -1022,26 +1006,10 @@ endef
 $(eval $(call KernelPackage,ptp))
 
 
-define KernelPackage/ptp-gianfar
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=Freescale Gianfar PTP support
-  DEPENDS:=@TARGET_mpc85xx +kmod-ptp @LINUX_4_14
-  KCONFIG:=CONFIG_PTP_1588_CLOCK_GIANFAR
-  FILES:=$(LINUX_DIR)/drivers/net/ethernet/freescale/gianfar_ptp.ko
-  AUTOLOAD:=$(call AutoProbe,gianfar_ptp)
-endef
-
-define KernelPackage/ptp-gianfar/description
- Kernel module for IEEE 1588 support for Freescale
- Gianfar Ethernet drivers
-endef
-
-$(eval $(call KernelPackage,ptp-gianfar))
-
 define KernelPackage/ptp-qoriq
   SUBMENU:=$(OTHER_MENU)
   TITLE:=Freescale QorIQ PTP support
-  DEPENDS:=@TARGET_mpc85xx +kmod-ptp @!LINUX_4_14
+  DEPENDS:=@TARGET_mpc85xx +kmod-ptp
   KCONFIG:=CONFIG_PTP_1588_CLOCK_QORIQ
   FILES:=$(LINUX_DIR)/drivers/ptp/ptp-qoriq.ko
   AUTOLOAD:=$(call AutoProbe,ptp-qoriq)
@@ -1069,22 +1037,6 @@ endef
 $(eval $(call KernelPackage,random-core))
 
 
-define KernelPackage/random-tpm
-  SUBMENU:=$(OTHER_MENU)
-  TITLE:=Hardware Random Number Generator TPM support
-  KCONFIG:=CONFIG_HW_RANDOM_TPM
-  FILES:=$(LINUX_DIR)/drivers/char/hw_random/tpm-rng.ko
-  DEPENDS:= +kmod-random-core +kmod-tpm @LINUX_4_14
-  AUTOLOAD:=$(call AutoProbe,tpm-rng)
-endef
-
-define KernelPackage/random-tpm/description
- Kernel module for the Random Number Generator
- in the Trusted Platform Module.
-endef
-
-$(eval $(call KernelPackage,random-tpm))
-
 define KernelPackage/thermal
   SUBMENU:=$(OTHER_MENU)
   TITLE:=Generic Thermal sysfs driver
@@ -1154,7 +1106,7 @@ $(eval $(call KernelPackage,echo))
 define KernelPackage/tpm
   SUBMENU:=$(OTHER_MENU)
   TITLE:=TPM Hardware Support
-  DEPENDS:= +!LINUX_4_14:kmod-random-core
+  DEPENDS:= +kmod-random-core
   KCONFIG:= CONFIG_TCG_TPM
   FILES:= $(LINUX_DIR)/drivers/char/tpm/tpm.ko
   AUTOLOAD:=$(call AutoLoad,10,tpm,1)
diff --git a/package/kernel/linux/modules/sound.mk b/package/kernel/linux/modules/sound.mk
index 692ede30ee..66194a5a73 100644
--- a/package/kernel/linux/modules/sound.mk
+++ b/package/kernel/linux/modules/sound.mk
@@ -522,7 +522,7 @@ define KernelPackage/sound-hda-intel
 	CONFIG_SND_HDA_INTEL
   FILES:= \
 	$(LINUX_DIR)/sound/pci/hda/snd-hda-intel.ko \
-	$(LINUX_DIR)/sound/hda/snd-intel-nhlt.ko@ge5.4
+	$(LINUX_DIR)/sound/hda/snd-intel-nhlt.ko
   AUTOLOAD:=$(call AutoProbe,snd-hda-intel)
   $(call AddDepends/sound,kmod-sound-hda-core)
 endef
diff --git a/package/kernel/linux/modules/usb.mk b/package/kernel/linux/modules/usb.mk
index be1c5f2abc..2564e5c1e6 100644
--- a/package/kernel/linux/modules/usb.mk
+++ b/package/kernel/linux/modules/usb.mk
@@ -458,27 +458,9 @@ endef
 $(eval $(call KernelPackage,usb-dwc3))
 
 
-define KernelPackage/usb-dwc3-of-simple
-  TITLE:=DWC3 USB simple OF driver
-  DEPENDS:=@LINUX_4_14 @(TARGET_ipq40xx||TARGET_ipq806x) +kmod-usb-dwc3
-  KCONFIG:= CONFIG_USB_DWC3_OF_SIMPLE
-  FILES:= $(LINUX_DIR)/drivers/usb/dwc3/dwc3-of-simple.ko
-  AUTOLOAD:=$(call AutoLoad,53,dwc3-of-simple,1)
-  $(call AddDepends/usb)
-endef
-
-define KernelPackage/usb-dwc3-of-simple/description
- This driver provides generic platform glue for the integrated DesignWare
- USB3 IP Core.
-endef
-
-
-$(eval $(call KernelPackage,usb-dwc3-of-simple))
-
-
 define KernelPackage/usb-dwc3-qcom
   TITLE:=DWC3 Qualcomm USB driver
-  DEPENDS:=@(!LINUX_4_14) @(TARGET_ipq40xx||TARGET_ipq806x) +kmod-usb-dwc3
+  DEPENDS:=@(TARGET_ipq40xx||TARGET_ipq806x) +kmod-usb-dwc3
   KCONFIG:= CONFIG_USB_DWC3_QCOM
   FILES:= $(LINUX_DIR)/drivers/usb/dwc3/dwc3-qcom.ko
   AUTOLOAD:=$(call AutoLoad,53,dwc3-qcom,1)
@@ -1603,8 +1585,8 @@ define KernelPackage/usb-chipidea
   FILES:= \
 	$(LINUX_DIR)/drivers/extcon/extcon-core.ko \
 	$(LINUX_DIR)/drivers/usb/chipidea/ci_hdrc.ko \
-	$(LINUX_DIR)/drivers/usb/common/ulpi.ko@ge4.18 \
-	$(LINUX_DIR)/drivers/usb/roles/roles.ko@ge5.0
+	$(LINUX_DIR)/drivers/usb/common/ulpi.ko \
+	$(LINUX_DIR)/drivers/usb/roles/roles.ko
   AUTOLOAD:=$(call AutoLoad,39,ci_hdrc,1)
   $(call AddDepends/usb)
 endef
diff --git a/package/kernel/linux/modules/video.mk b/package/kernel/linux/modules/video.mk
index a109ef7850..c71f0760a6 100644
--- a/package/kernel/linux/modules/video.mk
+++ b/package/kernel/linux/modules/video.mk
@@ -229,7 +229,7 @@ define KernelPackage/drm
   KCONFIG:=CONFIG_DRM
   FILES:= \
 	$(LINUX_DIR)/drivers/gpu/drm/drm.ko \
-	$(LINUX_DIR)/drivers/gpu/drm/drm_panel_orientation_quirks.ko@ge4.15
+	$(LINUX_DIR)/drivers/gpu/drm/drm_panel_orientation_quirks.ko
   AUTOLOAD:=$(call AutoLoad,05,drm)
 endef
 
@@ -282,11 +282,9 @@ define KernelPackage/drm-amdgpu
 	CONFIG_DRM_AMDGPU_SI=y \
 	CONFIG_DRM_AMDGPU_CIK=y \
 	CONFIG_DRM_AMD_DC=y \
-	CONFIG_HSA_AMD=y \
 	CONFIG_DEBUG_KERNEL_DC=n
   FILES:=$(LINUX_DIR)/drivers/gpu/drm/amd/amdgpu/amdgpu.ko \
-	$(LINUX_DIR)/drivers/gpu/drm/scheduler/gpu-sched.ko@ge4.15 \
-	$(LINUX_DIR)/drivers/gpu/drm/amd/lib/chash.ko@lt5.3
+	$(LINUX_DIR)/drivers/gpu/drm/scheduler/gpu-sched.ko
   AUTOLOAD:=$(call AutoProbe,amdgpu)
 endef
 
@@ -408,7 +406,6 @@ define KernelPackage/video-core
 	CONFIG_V4L_PLATFORM_DRIVERS=y \
 	CONFIG_V4L_ISA_PARPORT_DRIVERS=y
   FILES:= \
-	$(LINUX_DIR)/drivers/media/$(V4L2_DIR)/v4l2-common.ko@lt5.4 \
 	$(LINUX_DIR)/drivers/media/$(V4L2_DIR)/videodev.ko
   AUTOLOAD:=$(call AutoLoad,60, videodev v4l2-common)
 endef
@@ -440,14 +437,10 @@ define KernelPackage/video-videobuf2
 	CONFIG_VIDEOBUF2_MEMOPS \
 	CONFIG_VIDEOBUF2_VMALLOC
   FILES:= \
-	$(LINUX_DIR)/drivers/media/$(V4L2_DIR)/videobuf2-core.ko@lt4.16 \
-	$(LINUX_DIR)/drivers/media/$(V4L2_DIR)/videobuf2-v4l2.ko@lt4.16 \
-	$(LINUX_DIR)/drivers/media/$(V4L2_DIR)/videobuf2-memops.ko@lt4.16 \
-	$(LINUX_DIR)/drivers/media/$(V4L2_DIR)/videobuf2-vmalloc.ko@lt4.16 \
-	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-common.ko@ge4.16 \
-	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-v4l2.ko@ge4.16 \
-	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-memops.ko@ge4.16 \
-	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-vmalloc.ko@ge4.16
+	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-common.ko \
+	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-v4l2.ko \
+	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-memops.ko \
+	$(LINUX_DIR)/drivers/media/common/videobuf2/videobuf2-vmalloc.ko
   AUTOLOAD:=$(call AutoLoad,65,videobuf2-core videobuf-v4l2 videobuf2-memops videobuf2-vmalloc)
   $(call AddDepends/video)
 endef
@@ -512,7 +505,7 @@ $(eval $(call KernelPackage,video-uvc))
 define KernelPackage/video-gspca-core
   MENU:=1
   TITLE:=GSPCA webcam core support framework
-  DEPENDS:=@USB_SUPPORT +kmod-usb-core +kmod-input-core +!LINUX_4_14:kmod-video-videobuf2
+  DEPENDS:=@USB_SUPPORT +kmod-usb-core +kmod-input-core +kmod-video-videobuf2
   KCONFIG:=CONFIG_USB_GSPCA
   FILES:=$(LINUX_DIR)/drivers/media/$(V4L2_USB_DIR)/gspca/gspca_main.ko
   AUTOLOAD:=$(call AutoProbe,gspca_main)
diff --git a/package/kernel/spi-gpio-custom/Makefile b/package/kernel/spi-gpio-custom/Makefile
deleted file mode 100644
index d658dc2630..0000000000
--- a/package/kernel/spi-gpio-custom/Makefile
+++ /dev/null
@@ -1,47 +0,0 @@
-#
-# Copyright (C) 2008 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=spi-gpio-custom
-PKG_RELEASE:=1
-
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/spi-gpio-custom
-  SUBMENU:=SPI Support
-  TITLE:=Custom GPIO-based SPI device
-  DEPENDS:=@GPIO_SUPPORT +kmod-spi-bitbang +kmod-spi-gpio +kmod-spi-dev @LINUX_4_14
-  FILES:=$(PKG_BUILD_DIR)/spi-gpio-custom.ko
-  KCONFIG:=
-endef
-
-define KernelPackage/spi-gpio-custom/description
- Kernel module for register a custom spi-gpio platform device.
-endef
-
-EXTRA_KCONFIG:= \
-	CONFIG_SPI_GPIO_CUSTOM=m
-
-EXTRA_CFLAGS:= \
-	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
-	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \
-
-MAKE_OPTS:= \
-	$(KERNEL_MAKE_FLAGS) \
-	M="$(PKG_BUILD_DIR)" \
-	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
-	$(EXTRA_KCONFIG)
-
-define Build/Compile
-	$(MAKE) -C "$(LINUX_DIR)" \
-		$(MAKE_OPTS) \
-		modules
-endef
-
-$(eval $(call KernelPackage,spi-gpio-custom))
diff --git a/package/kernel/spi-gpio-custom/src/Kconfig b/package/kernel/spi-gpio-custom/src/Kconfig
deleted file mode 100644
index 5e15f05a7b..0000000000
--- a/package/kernel/spi-gpio-custom/src/Kconfig
+++ /dev/null
@@ -1,14 +0,0 @@
-config SPI_GPIO_CUSTOM
-	tristate "Custom GPIO-based SPI driver"
-	depends on GENERIC_GPIO
-	select SPI_GPIO
-	help
-	  This is an SPI driver to register 1 to 4 custom SPI buses using
-	  GPIO lines. Each bus can have up to 8 slaves.
-	  The devices will be exposed to userspace as /dev/spidevX.X
-	  
-	  This module is maily intended to interface microcontrollers
-	  and other SPI devices without a specific kernel driver.
-
-	  This support is also available as a module.  If so, the module
-	  will be called spi-gpio-custom.
diff --git a/package/kernel/spi-gpio-custom/src/Makefile b/package/kernel/spi-gpio-custom/src/Makefile
deleted file mode 100644
index cf8c55f98c..0000000000
--- a/package/kernel/spi-gpio-custom/src/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-${CONFIG_SPI_GPIO_CUSTOM}	+= spi-gpio-custom.o
\ No newline at end of file
diff --git a/package/kernel/spi-gpio-custom/src/spi-gpio-custom.c b/package/kernel/spi-gpio-custom/src/spi-gpio-custom.c
deleted file mode 100644
index 4c13b56d79..0000000000
--- a/package/kernel/spi-gpio-custom/src/spi-gpio-custom.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- *  Custom GPIO-based SPI driver
- *
- *  Copyright (C) 2013 Marco Burato <zmaster.adsl@gmail.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- *  Based on i2c-gpio-custom by:
- *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
- * ---------------------------------------------------------------------------
- *
- *  The behaviour of this driver can be altered by setting some parameters
- *  from the insmod command line.
- *
- *  The following parameters are adjustable:
- *
- *	bus0	These four arguments can be arrays of
- *	bus1	1-8 unsigned integers as follows:
- *	bus2
- *	bus3	<id>,<sck>,<mosi>,<miso>,<mode1>,<maxfreq1>,<cs1>,...
- *
- *  where:
- *
- *  <id>	ID to used as device_id for the corresponding bus (required)
- *  <sck>	GPIO pin ID to be used for bus SCK (required)
- *  <mosi>	GPIO pin ID to be used for bus MOSI (required*)
- *  <miso>	GPIO pin ID to be used for bus MISO (required*)
- *  <modeX>	Mode configuration for slave X in the bus (required)
- *		(see /include/linux/spi/spi.h)
- *  <maxfreqX>	Maximum clock frequency in Hz for slave X in the bus (required)
- *  <csX>	GPIO pin ID to be used for slave X CS (required**)
- *
- *	Notes:
- *	*	If a signal is not used (for example there is no MISO) you need
- *		to set the GPIO pin ID for that signal to an invalid value.
- *	**	If you only have 1 slave in the bus with no CS, you can omit the
- *		<cs1> param or set it to an invalid GPIO id to disable it. When
- *		you have 2 or more slaves, they must all have a valid CS.
- *
- *  If this driver is built into the kernel, you can use the following kernel
- *  command line parameters, with the same values as the corresponding module
- *  parameters listed above:
- *
- *	spi-gpio-custom.bus0
- *	spi-gpio-custom.bus1
- *	spi-gpio-custom.bus2
- *	spi-gpio-custom.bus3
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/spi_gpio.h>
-
-#define DRV_NAME	"spi-gpio-custom"
-#define DRV_DESC	"Custom GPIO-based SPI driver"
-#define DRV_VERSION	"0.1"
-
-#define PFX		DRV_NAME ": "
-
-#define BUS_PARAM_ID		0
-#define BUS_PARAM_SCK		1
-#define BUS_PARAM_MOSI		2
-#define BUS_PARAM_MISO		3
-#define BUS_PARAM_MODE1		4
-#define BUS_PARAM_MAXFREQ1	5
-#define BUS_PARAM_CS1		6
-
-#define BUS_SLAVE_COUNT_MAX	8
-#define BUS_PARAM_REQUIRED	6
-#define BUS_PARAM_PER_SLAVE	3
-#define BUS_PARAM_COUNT		(4+BUS_PARAM_PER_SLAVE*BUS_SLAVE_COUNT_MAX)
-#define BUS_COUNT_MAX		4
-
-static unsigned int bus0[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus1[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus2[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus3[BUS_PARAM_COUNT] __initdata;
-
-static unsigned int bus_nump[BUS_COUNT_MAX] __initdata;
-
-#define BUS_PARM_DESC \
-	" config -> id,sck,mosi,miso,mode1,maxfreq1[,cs1,mode2,maxfreq2,cs2,...]"
-
-module_param_array(bus0, uint, &bus_nump[0], 0);
-MODULE_PARM_DESC(bus0, "bus0" BUS_PARM_DESC);
-module_param_array(bus1, uint, &bus_nump[1], 0);
-MODULE_PARM_DESC(bus1, "bus1" BUS_PARM_DESC);
-module_param_array(bus2, uint, &bus_nump[2], 0);
-MODULE_PARM_DESC(bus2, "bus2" BUS_PARM_DESC);
-module_param_array(bus3, uint, &bus_nump[3], 0);
-MODULE_PARM_DESC(bus3, "bus3" BUS_PARM_DESC);
-
-static struct platform_device *devices[BUS_COUNT_MAX];
-static unsigned int nr_devices;
-
-static void spi_gpio_custom_cleanup(void)
-{
-	int i;
-
-	for (i = 0; i < nr_devices; i++)
-		if (devices[i])
-			platform_device_unregister(devices[i]);
-}
-
-static int __init spi_gpio_custom_get_slave_mode(unsigned int id,
-					  unsigned int *params,
-					  int slave_index)
-{
-	int param_index;
-
-	param_index = BUS_PARAM_MODE1+slave_index*BUS_PARAM_PER_SLAVE;
-	if (param_index >= bus_nump[id])
-		return -1;
-
-	return params[param_index];
-}
-static int __init spi_gpio_custom_get_slave_maxfreq(unsigned int id,
-					     unsigned int *params,
-					     int slave_index)
-{
-	int param_index;
-
-	param_index = BUS_PARAM_MAXFREQ1+slave_index*BUS_PARAM_PER_SLAVE;
-	if (param_index >= bus_nump[id])
-		return -1;
-
-	return params[param_index];
-}
-static int __init spi_gpio_custom_get_slave_cs(unsigned int id,
-					unsigned int *params,
-					int slave_index)
-{
-	int param_index;
-
-	param_index = BUS_PARAM_CS1+slave_index*BUS_PARAM_PER_SLAVE;
-	if (param_index >= bus_nump[id])
-		return -1;
-	if (!gpio_is_valid(params[param_index]))
-		return -1;
-
-	return params[param_index];
-}
-
-static int __init spi_gpio_custom_check_params(unsigned int id, unsigned int *params)
-{
-	int i;
-	struct spi_master *master;
-
-	if (bus_nump[id] < BUS_PARAM_REQUIRED) {
-		printk(KERN_ERR PFX "not enough values for parameter bus%d\n",
-		       id);
-		return -EINVAL;
-	}
-
-	if (bus_nump[id] > (1+BUS_PARAM_CS1)) {
-		/* more than 1 device: check CS GPIOs */
-		for (i = 0; i < BUS_SLAVE_COUNT_MAX; i++) {
-			/* no more slaves? */
-			if (spi_gpio_custom_get_slave_mode(id, params, i) < 0)
-				break;
-
-			if (spi_gpio_custom_get_slave_cs(id, params, i) < 0) {
-				printk(KERN_ERR PFX "invalid/missing CS gpio for slave %d on bus %d\n",
-				       i, params[BUS_PARAM_ID]);
-				return -EINVAL;
-			}
-		}
-	}
-
-	if (!gpio_is_valid(params[BUS_PARAM_SCK])) {
-		printk(KERN_ERR PFX "invalid SCK gpio for bus %d\n",
-		       params[BUS_PARAM_ID]);
-		return -EINVAL;
-	}
-
-	master = spi_busnum_to_master(params[BUS_PARAM_ID]);
-	if (master) {
-		spi_master_put(master);
-		printk(KERN_ERR PFX "bus %d already exists\n",
-		       params[BUS_PARAM_ID]);
-		return -EEXIST;
-	}
-
-	return 0;
-}
-
-static int __init spi_gpio_custom_add_one(unsigned int id, unsigned int *params)
-{
-	struct platform_device *pdev;
-	struct spi_gpio_platform_data pdata;
-	int i;
-	int num_cs;
-	int err;
-	struct spi_master *master;
-	struct spi_device *slave;
-	struct spi_board_info slave_info;
-	int mode, maxfreq, cs;
-
-
-	if (!bus_nump[id])
-		return 0;
-
-	err = spi_gpio_custom_check_params(id, params);
-	if (err)
-		goto err;
-
-	/* Create BUS device node */
-
-	pdev = platform_device_alloc("spi_gpio", params[BUS_PARAM_ID]);
-	if (!pdev) {
-		err = -ENOMEM;
-		goto err;
-	}
-
-	num_cs = 0;
-	for (i = 0; i < BUS_SLAVE_COUNT_MAX; i++) {
-		/* no more slaves? */
-		if (spi_gpio_custom_get_slave_mode(id, params, i) < 0)
-			break;
-
-		if (spi_gpio_custom_get_slave_cs(id, params, i) >= 0)
-			num_cs++;
-	}
-	if (num_cs == 0) {
-		/*
-		 * Even if no CS is used, spi modules expect
-		 * at least 1 (unused)
-		 */
-		num_cs = 1;
-	}
-
-	pdata.sck = params[BUS_PARAM_SCK];
-	pdata.mosi = gpio_is_valid(params[BUS_PARAM_MOSI])
-		? params[BUS_PARAM_MOSI]
-		: SPI_GPIO_NO_MOSI;
-	pdata.miso = gpio_is_valid(params[BUS_PARAM_MISO])
-		? params[BUS_PARAM_MISO]
-		: SPI_GPIO_NO_MISO;
-	pdata.num_chipselect = num_cs;
-
-	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
-	if (err) {
-		platform_device_put(pdev);
-		goto err;
-	}
-
-	err = platform_device_add(pdev);
-	if (err) {
-		printk(KERN_ERR PFX "platform_device_add failed with return code %d\n",
-		       err);
-		platform_device_put(pdev);
-		goto err;
-	}
-
-	/* Register SLAVE devices */
-
-	for (i = 0; i < BUS_SLAVE_COUNT_MAX; i++) {
-		mode = spi_gpio_custom_get_slave_mode(id, params, i);
-		maxfreq = spi_gpio_custom_get_slave_maxfreq(id, params, i);
-		cs = spi_gpio_custom_get_slave_cs(id, params, i);
-
-		/* no more slaves? */
-		if (mode < 0)
-			break;
-
-		memset(&slave_info, 0, sizeof(slave_info));
-		strcpy(slave_info.modalias, "spidev");
-		slave_info.controller_data = (void *)((cs >= 0)
-			? cs
-			: SPI_GPIO_NO_CHIPSELECT);
-		slave_info.max_speed_hz = maxfreq;
-		slave_info.bus_num = params[BUS_PARAM_ID];
-		slave_info.chip_select = i;
-		slave_info.mode = mode;
-
-		master = spi_busnum_to_master(params[BUS_PARAM_ID]);
-		if (!master) {
-			printk(KERN_ERR PFX "unable to get master for bus %d\n",
-			       params[BUS_PARAM_ID]);
-			err = -EINVAL;
-			goto err_unregister;
-		}
-		slave = spi_new_device(master, &slave_info);
-		spi_master_put(master);
-		if (!slave) {
-			printk(KERN_ERR PFX "unable to create slave %d for bus %d\n",
-			       i, params[BUS_PARAM_ID]);
-			/* Will most likely fail due to unsupported mode bits */
-			err = -EINVAL;
-			goto err_unregister;
-		}
-	}
-
-	devices[nr_devices++] = pdev;
-
-	return 0;
-
-err_unregister:
-	platform_device_unregister(pdev);
-err:
-	return err;
-}
-
-static int __init spi_gpio_custom_probe(void)
-{
-	int err;
-
-	printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n");
-
-	err = spi_gpio_custom_add_one(0, bus0);
-	if (err)
-		goto err;
-
-	err = spi_gpio_custom_add_one(1, bus1);
-	if (err)
-		goto err;
-
-	err = spi_gpio_custom_add_one(2, bus2);
-	if (err)
-		goto err;
-
-	err = spi_gpio_custom_add_one(3, bus3);
-	if (err)
-		goto err;
-
-	if (!nr_devices) {
-		printk(KERN_ERR PFX "no bus parameter(s) specified\n");
-		err = -ENODEV;
-		goto err;
-	}
-
-	return 0;
-
-err:
-	spi_gpio_custom_cleanup();
-	return err;
-}
-
-#ifdef MODULE
-static int __init spi_gpio_custom_init(void)
-{
-	return spi_gpio_custom_probe();
-}
-module_init(spi_gpio_custom_init);
-
-static void __exit spi_gpio_custom_exit(void)
-{
-	spi_gpio_custom_cleanup();
-}
-module_exit(spi_gpio_custom_exit);
-#else
-subsys_initcall(spi_gpio_custom_probe);
-#endif /* MODULE*/
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Marco Burato <zmaster.adsl@gmail.com>");
-MODULE_DESCRIPTION(DRV_DESC);
-MODULE_VERSION(DRV_VERSION);
diff --git a/package/kernel/w1-gpio-custom/Makefile b/package/kernel/w1-gpio-custom/Makefile
deleted file mode 100644
index 0774c3ca86..0000000000
--- a/package/kernel/w1-gpio-custom/Makefile
+++ /dev/null
@@ -1,48 +0,0 @@
-#
-# Copyright (C) 2008-2012 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=w1-gpio-custom
-PKG_RELEASE:=3
-
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/w1-gpio-custom
-  SUBMENU:=W1 support
-  TITLE:=Custom GPIO-based 1-wire device
-  DEPENDS:=kmod-w1 +kmod-w1-master-gpio @LINUX_4_14
-  FILES:=$(PKG_BUILD_DIR)/w1-gpio-custom.ko
-  KCONFIG:=
-endef
-
-define KernelPackage/w1-gpio-custom/description
- Kernel module to register a custom w1-gpio platform device.
-endef
-
-EXTRA_KCONFIG:= \
-	CONFIG_W1_MASTER_GPIO_CUSTOM=m
-
-EXTRA_CFLAGS:= \
-	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
-	$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG))))
-
-MAKE_OPTS:= \
-	$(KERNEL_MAKE_FLAGS) \
-	M="$(PKG_BUILD_DIR)" \
-	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
-	$(EXTRA_KCONFIG)
-
-define Build/Compile
-	$(MAKE) -C "$(LINUX_DIR)" \
-		$(MAKE_OPTS) \
-		modules
-endef
-
-$(eval $(call KernelPackage,w1-gpio-custom))
-
diff --git a/package/kernel/w1-gpio-custom/src/Kconfig b/package/kernel/w1-gpio-custom/src/Kconfig
deleted file mode 100644
index 74b9226c5c..0000000000
--- a/package/kernel/w1-gpio-custom/src/Kconfig
+++ /dev/null
@@ -1,4 +0,0 @@
-config W1_MASTER_GPIO_CUSTOM
-	tristate "Custom GPIO-based W1 driver"
-	depends on GENERIC_GPIO
-	select W1_GPIO
\ No newline at end of file
diff --git a/package/kernel/w1-gpio-custom/src/Makefile b/package/kernel/w1-gpio-custom/src/Makefile
deleted file mode 100644
index 6a527432c1..0000000000
--- a/package/kernel/w1-gpio-custom/src/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-${CONFIG_W1_MASTER_GPIO_CUSTOM}	+= w1-gpio-custom.o
\ No newline at end of file
diff --git a/package/kernel/w1-gpio-custom/src/w1-gpio-custom.c b/package/kernel/w1-gpio-custom/src/w1-gpio-custom.c
deleted file mode 100644
index 004c9240ba..0000000000
--- a/package/kernel/w1-gpio-custom/src/w1-gpio-custom.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- *  Custom GPIO-based W1 driver
- *
- *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
- *  Copyright (C) 2008 Bifferos <bifferos at yahoo.co.uk>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- * ---------------------------------------------------------------------------
- *
- *  The behaviour of this driver can be altered by setting some parameters
- *  from the insmod command line.
- *
- *  The following parameters are adjustable:
- *
- *	bus0	These four arguments must be arrays of
- *	bus1	3 unsigned integers as follows:
- *	bus2
- *	bus3	<id>,<pin>,<od>
- *
- *  where:
- *
- *  <id>	ID to used as device_id for the corresponding bus (required)
- *  <sda>	GPIO pin ID of data pin (required)
- *  <od>	Pin is configured as open drain.
- *
- *  See include/w1-gpio.h for more information about the parameters.
- *
- *  If this driver is built into the kernel, you can use the following kernel
- *  command line parameters, with the same values as the corresponding module
- *  parameters listed above:
- *
- *	w1-gpio-custom.bus0
- *	w1-gpio-custom.bus1
- *	w1-gpio-custom.bus2
- *	w1-gpio-custom.bus3
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-
-#include <linux/w1-gpio.h>
-
-#define DRV_NAME	"w1-gpio-custom"
-#define DRV_DESC	"Custom GPIO-based W1 driver"
-#define DRV_VERSION	"0.1.1"
-
-#define PFX		DRV_NAME ": "
-
-#define BUS_PARAM_ID		0
-#define BUS_PARAM_PIN		1
-#define BUS_PARAM_OD		2
-
-#define BUS_PARAM_REQUIRED	3
-#define BUS_PARAM_COUNT		3
-#define BUS_COUNT_MAX		4
-
-static unsigned int bus0[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus1[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus2[BUS_PARAM_COUNT] __initdata;
-static unsigned int bus3[BUS_PARAM_COUNT] __initdata;
-
-static unsigned int bus_nump[BUS_COUNT_MAX] __initdata;
-
-#define BUS_PARM_DESC " config -> id,pin,od"
-
-module_param_array(bus0, uint, &bus_nump[0], 0);
-MODULE_PARM_DESC(bus0, "bus0" BUS_PARM_DESC);
-module_param_array(bus1, uint, &bus_nump[1], 0);
-MODULE_PARM_DESC(bus1, "bus1" BUS_PARM_DESC);
-module_param_array(bus2, uint, &bus_nump[2], 0);
-MODULE_PARM_DESC(bus2, "bus2" BUS_PARM_DESC);
-module_param_array(bus3, uint, &bus_nump[3], 0);
-MODULE_PARM_DESC(bus3, "bus3" BUS_PARM_DESC);
-
-static struct platform_device *devices[BUS_COUNT_MAX];
-static unsigned int nr_devices;
-
-static void w1_gpio_custom_cleanup(void)
-{
-	int i;
-
-	for (i = 0; i < nr_devices; i++)
-		if (devices[i])
-			platform_device_put(devices[i]);
-}
-
-static int __init w1_gpio_custom_add_one(unsigned int id, unsigned int *params)
-{
-	struct platform_device *pdev;
-	struct w1_gpio_platform_data pdata;
-	int err;
-
-	if (!bus_nump[id])
-		return 0;
-
-	if (bus_nump[id] < BUS_PARAM_REQUIRED) {
-		printk(KERN_ERR PFX "not enough parameters for bus%d\n", id);
-		err = -EINVAL;
-		goto err;
-	}
-
-	pdev = platform_device_alloc("w1-gpio", params[BUS_PARAM_ID]);
-	if (!pdev) {
-		err = -ENOMEM;
-		goto err;
-	}
-
-	pdata.pin = params[BUS_PARAM_PIN];
-	pdata.is_open_drain = params[BUS_PARAM_OD] ? 1 : 0;
-	pdata.enable_external_pullup = NULL;
-	pdata.ext_pullup_enable_pin = -EINVAL;
-
-	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
-	if (err)
-		goto err_put;
-
-	err = platform_device_add(pdev);
-	if (err)
-		goto err_put;
-
-	devices[nr_devices++] = pdev;
-	return 0;
-
- err_put:
-	platform_device_put(pdev);
- err:
-	return err;
-}
-
-static int __init w1_gpio_custom_probe(void)
-{
-	int err;
-
-	nr_devices = 0;
-	printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n");
-
-	err = w1_gpio_custom_add_one(0, bus0);
-	if (err)
-		goto err;
-
-	err = w1_gpio_custom_add_one(1, bus1);
-	if (err)
-		goto err;
-
-	err = w1_gpio_custom_add_one(2, bus2);
-	if (err)
-		goto err;
-
-	err = w1_gpio_custom_add_one(3, bus3);
-	if (err)
-		goto err;
-
-	if (!nr_devices) {
-		printk(KERN_ERR PFX "no bus parameter(s) specified\n");
-		err = -ENODEV;
-		goto err;
-	}
-
-	return 0;
-
-err:
-	w1_gpio_custom_cleanup();
-	return err;
-}
-
-#ifdef MODULE
-static int __init w1_gpio_custom_init(void)
-{
-	return w1_gpio_custom_probe();
-}
-module_init(w1_gpio_custom_init);
-
-static void __exit w1_gpio_custom_exit(void)
-{
-	w1_gpio_custom_cleanup();
-}
-module_exit(w1_gpio_custom_exit);
-#else
-subsys_initcall(w1_gpio_custom_probe);
-#endif /* MODULE*/
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Bifferos <bifferos at yahoo.co.uk >");
-MODULE_DESCRIPTION(DRV_DESC);
-MODULE_VERSION(DRV_VERSION);