kernel: drop outdated kernel version switches for local code

This drops kernel version switches for versions not supported by
OpenWrt master at the moment. This only adjusts local code, but
doesn't touch patches to existing external packages.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

15 files changed, 0 insertions, 174 deletions

diff --git a/package/kernel/gpio-nct5104d/src/gpio-nct5104d.c b/package/kernel/gpio-nct5104d/src/gpio-nct5104d.c
index 8da7580562..8f180edd33 100644
--- a/package/kernel/gpio-nct5104d/src/gpio-nct5104d.c
+++ b/package/kernel/gpio-nct5104d/src/gpio-nct5104d.c
@@ -276,11 +276,7 @@ static int nct5104d_gpio_probe(struct platform_device *pdev)
 	for (i = 0; i < data->nr_bank; i++) {
 		struct nct5104d_gpio_bank *bank = &data->bank[i];
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
-		bank->chip.dev = &pdev->dev;
-#else
 		bank->chip.parent = &pdev->dev;
-#endif
 		bank->data = data;
 
 		err = gpiochip_add(&bank->chip);
@@ -298,15 +294,7 @@ err_gpiochip:
 	for (i = i - 1; i >= 0; i--) {
 		struct nct5104d_gpio_bank *bank = &data->bank[i];
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0)
-		int rm_err = gpiochip_remove(&bank->chip);
-		if (rm_err < 0)
-			dev_err(&pdev->dev,
-				"Failed to remove gpiochip %d: %d\n",
-				i, rm_err);
-#else /* LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) */
 		gpiochip_remove (&bank->chip);
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) */
 	}
 
 	return err;
@@ -320,17 +308,7 @@ static int nct5104d_gpio_remove(struct platform_device *pdev)
 	for (i = 0; i < data->nr_bank; i++) {
 		struct nct5104d_gpio_bank *bank = &data->bank[i];
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0)
-		int err = gpiochip_remove(&bank->chip);
-		if (err) {
-			dev_err(&pdev->dev,
-				"Failed to remove GPIO gpiochip %d: %d\n",
-				i, err);
-			return err;
-		}
-#else /* LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) */
 		gpiochip_remove (&bank->chip);
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) */
 	}
 
 	return 0;
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 dc9f1c241b..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);
 
@@ -523,9 +519,7 @@ typedef struct DSL_DEV_Device
 #define IFX_DFEIR		0
 #define IFX_DYING_GASP	1
 	DSL_DEV_MeiDebug_t lop_debugwr;  /* dying gasp */
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0))
 	struct module *owner;
-#endif
 } DSL_DEV_Device_t;			/* ifx_adsl_device_t */
 
 #define DSL_DEV_PRIVATE(dev)  ((ifx_mei_device_private_t*)(dev->pPriv))
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 267a515df6..f5dbfaae2d 100644
--- a/package/kernel/lantiq/ltq-atm/src/ltq_atm.c
+++ b/package/kernel/lantiq/ltq-atm/src/ltq_atm.c
@@ -1809,11 +1809,7 @@ static int ltq_atm_probe(struct platform_device *pdev)
 	}
 
 	/*  register interrupt handler  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,1,0)
 	ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, 0, "atm_mailbox_isr", &g_atm_priv_data);
-#else
-	ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, IRQF_DISABLED, "atm_mailbox_isr", &g_atm_priv_data);
-#endif
 	if ( ret ) {
 		if ( ret == -EBUSY ) {
 			pr_err("IRQ may be occupied by other driver, please reconfig to disable it.\n");
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c b/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c
index 6c8d065d8b..76abfafb4e 100644
--- a/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c
+++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_aes.c
@@ -895,18 +895,6 @@ int ifxdeu_init_aes (void)
     int ret = -ENOSYS;
 
 
- 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
-    if (!disable_multiblock) {
-        ifxdeu_aes_alg.cra_u.cipher.cia_max_nbytes = AES_BLOCK_SIZE;    //(size_t)-1;
-        ifxdeu_aes_alg.cra_u.cipher.cia_req_align = 16;
-        ifxdeu_aes_alg.cra_u.cipher.cia_ecb = ifx_deu_aes_ecb;
-        ifxdeu_aes_alg.cra_u.cipher.cia_cbc = ifx_deu_aes_cbc;
-        ifxdeu_aes_alg.cra_u.cipher.cia_cfb = ifx_deu_aes_cfb;
-        ifxdeu_aes_alg.cra_u.cipher.cia_ofb = ifx_deu_aes_ofb;
-    }
-#endif
-
     if ((ret = crypto_register_alg(&ifxdeu_aes_alg)))
         goto aes_err;
 
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_async_aes.c b/package/kernel/lantiq/ltq-deu/src/ifxmips_async_aes.c
index 15e1485912..dcd059371f 100644
--- a/package/kernel/lantiq/ltq-deu/src/ifxmips_async_aes.c
+++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_async_aes.c
@@ -100,11 +100,7 @@ extern char debug_level;
 
 
 static int disable_multiblock = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 module_param(disable_multiblock, int, 0);
-#else
-MODULE_PARM_DESC(disable_multiblock, "Disable encryption of whole multiblock buffers");
-#endif
 
 static int disable_deudma = 1;
 
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_async_des.c b/package/kernel/lantiq/ltq-deu/src/ifxmips_async_des.c
index ea94c6460f..1523763ccd 100644
--- a/package/kernel/lantiq/ltq-deu/src/ifxmips_async_des.c
+++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_async_des.c
@@ -117,11 +117,7 @@ struct des_ctx {
 
 
 static int disable_multiblock = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 module_param(disable_multiblock, int, 0);
-#else
-MODULE_PARM_DESC(disable_multiblock, "Disable encryption of whole multiblock buffers");
-#endif
 
 static int disable_deudma = 1;
 
@@ -893,16 +889,6 @@ int __init lqdeu_async_des_init (void)
 {
     int i, j, ret = -EINVAL;
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
-     if (!disable_multiblock) {
-                ifxdeu_des_alg.cra_u.cipher.cia_max_nbytes = DES_BLOCK_SIZE;    //(size_t)-1;
-                ifxdeu_des_alg.cra_u.cipher.cia_req_align = 16;
-                ifxdeu_des_alg.cra_u.cipher.cia_ecb = ifx_deu_des_ecb;
-                ifxdeu_des_alg.cra_u.cipher.cia_cbc = ifx_deu_des_cbc;
-                ifxdeu_des_alg.cra_u.cipher.cia_cfb = ifx_deu_des_cfb;
-                ifxdeu_des_alg.cra_u.cipher.cia_ofb = ifx_deu_des_ofb;
-        }
-#endif
      for (i = 0; i < ARRAY_SIZE(des_drivers_alg); i++) {
          ret = crypto_register_alg(&des_drivers_alg[i].alg);
 	 //printk("driver: %s\n", des_drivers_alg[i].alg.cra_name);
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_des.c b/package/kernel/lantiq/ltq-deu/src/ifxmips_des.c
index beb67075ee..6d7d82fcb9 100644
--- a/package/kernel/lantiq/ltq-deu/src/ifxmips_des.c
+++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_des.c
@@ -691,17 +691,6 @@ int ifxdeu_init_des (void)
     int ret = -ENOSYS;
 
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
-     if (!disable_multiblock) {
-                ifxdeu_des_alg.cra_u.cipher.cia_max_nbytes = DES_BLOCK_SIZE;    //(size_t)-1;
-                ifxdeu_des_alg.cra_u.cipher.cia_req_align = 16;
-                ifxdeu_des_alg.cra_u.cipher.cia_ecb = ifx_deu_des_ecb;
-                ifxdeu_des_alg.cra_u.cipher.cia_cbc = ifx_deu_des_cbc;
-                ifxdeu_des_alg.cra_u.cipher.cia_cfb = ifx_deu_des_cfb;
-                ifxdeu_des_alg.cra_u.cipher.cia_ofb = ifx_deu_des_ofb;
-        }
-#endif
-
         ret = crypto_register_alg(&ifxdeu_des_alg);
         if (ret < 0)
                 goto des_err;
diff --git a/package/kernel/lantiq/ltq-deu/src/ifxmips_deu.c b/package/kernel/lantiq/ltq-deu/src/ifxmips_deu.c
index 05f168160b..3947b31a40 100644
--- a/package/kernel/lantiq/ltq-deu/src/ifxmips_deu.c
+++ b/package/kernel/lantiq/ltq-deu/src/ifxmips_deu.c
@@ -171,14 +171,8 @@ static int ltq_deu_remove(struct platform_device *pdev)
 
 int disable_multiblock = 0;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 module_param(disable_multiblock,int,0);
 
-#else
-//MODULE_PARM (disable_multiblock, "i");
-MODULE_PARM_DESC (disable_multiblock,
-          "Disable encryption of whole multiblock buffers.");
-#endif
 
 static const struct of_device_id ltq_deu_match[] = {
 #ifdef CONFIG_DANUBE
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 186c848693..18c715a290 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
@@ -61,12 +61,8 @@
  *        Kernel Version Adaption
  * ####################################
  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11)
   #define MODULE_PARM_ARRAY(a, b)   module_param_array(a, int, NULL, 0)
   #define MODULE_PARM(a, b)         module_param(a, int, 0)
-#else
-  #define MODULE_PARM_ARRAY(a, b)   MODULE_PARM(a, b)
-#endif
 
 
 
@@ -130,9 +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 *);
 
@@ -243,7 +236,6 @@ static INLINE void init_tables(void);
 
 static struct ptm_priv_data g_ptm_priv_data;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
 static struct net_device_ops g_ptm_netdev_ops = {
     .ndo_get_stats       = ptm_get_stats,
     .ndo_open            = ptm_open,
@@ -251,13 +243,9 @@ 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,
 };
-#endif
 
 static struct net_device *g_net_dev[2] = {0};
 static char *g_net_dev_name[2] = {"dsl0", "dslfast0"};
@@ -291,10 +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;
 
@@ -415,11 +401,7 @@ static int ptm_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
     /*  allocate descriptor */
     desc_base = get_tx_desc(ndev, &f_full);
     if ( f_full ) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0)
         netif_trans_update(dev);
-#else
-        dev->trans_start = jiffies;
-#endif
         netif_stop_queue(dev);
 
         IFX_REG_W32_MASK(0, 1 << (ndev + 16), MBOX_IGU1_ISRC);
@@ -453,11 +435,7 @@ static int ptm_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
     g_ptm_priv_data.itf[ndev].stats.tx_packets++;
     g_ptm_priv_data.itf[ndev].stats.tx_bytes += reg_desc.datalen;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0)
     netif_trans_update(dev);
-#else
-    dev->trans_start = jiffies;
-#endif
     mailbox_signal(ndev, 1);
 
     adsl_led_flash();
@@ -469,16 +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)
 {
@@ -665,10 +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 ) {
@@ -1513,11 +1477,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
     }
 
     /*  register interrupt handler  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,1,0)
     ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, 0, "ptm_mailbox_isr", &g_ptm_priv_data);
-#else
-    ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, IRQF_DISABLED, "ptm_mailbox_isr", &g_ptm_priv_data);
-#endif
     if ( ret ) {
         if ( ret == -EBUSY ) {
             err("IRQ may be occupied by other driver, please reconfig to disable it.");
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 46a52e29d8..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++;
@@ -301,11 +289,7 @@ static int ptm_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
     /*  allocate descriptor */
     desc_base = get_tx_desc(0, &f_full);
     if ( f_full ) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0)
         netif_trans_update(dev);
-#else
-        dev->trans_start = jiffies;
-#endif
         netif_stop_queue(dev);
 
         IFX_REG_W32_MASK(0, 1 << 17, MBOX_IGU1_ISRC);
@@ -367,11 +351,7 @@ static int ptm_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
     wmb();
     *(volatile unsigned int *)desc = *(unsigned int *)&reg_desc;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,7,0)
     netif_trans_update(dev);
-#else
-    dev->trans_start = jiffies;
-#endif
 
     return 0;
 
@@ -382,17 +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");
@@ -1024,11 +993,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
     }
 
     /*  register interrupt handler  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,1,0)
     ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, 0, "ptm_mailbox_isr", &g_ptm_priv_data);
-#else
-    ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, IRQF_DISABLED, "ptm_mailbox_isr", &g_ptm_priv_data);
-#endif
     if ( ret ) {
         if ( ret == -EBUSY ) {
             err("IRQ may be occupied by other driver, please reconfig to disable it.");
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/leds-apu2/src/leds-apu2.c b/package/kernel/leds-apu2/src/leds-apu2.c
index ff13b3cde1..ef125c8768 100644
--- a/package/kernel/leds-apu2/src/leds-apu2.c
+++ b/package/kernel/leds-apu2/src/leds-apu2.c
@@ -194,11 +194,7 @@ static int gpio_apu2_probe (struct platform_device *dev)
 		}
 	}
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
-	gpio_apu2_chip.dev = &dev->dev;
-#else
 	gpio_apu2_chip.parent = &dev->dev;
-#endif
 	ret = gpiochip_add (&gpio_apu2_chip);
 	if (ret) {
 		pr_err ("%s: adding gpiochip failed\n", DEVNAME);
@@ -209,12 +205,7 @@ static int gpio_apu2_probe (struct platform_device *dev)
 
 static int gpio_apu2_remove (struct platform_device *dev)
 {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0)
-	int ret;
-	ret = gpiochip_remove (&gpio_apu2_chip);
-#else /* LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) */
 	gpiochip_remove (&gpio_apu2_chip);
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) */
 	return 0;
 }
 
diff --git a/package/kernel/rtc-rv5c386a/src/rtc.c b/package/kernel/rtc-rv5c386a/src/rtc.c
index 96dc56eb36..0c00c41f96 100644
--- a/package/kernel/rtc-rv5c386a/src/rtc.c
+++ b/package/kernel/rtc-rv5c386a/src/rtc.c
@@ -57,9 +57,6 @@
 #include <linux/uaccess.h>
 
 #include <asm/current.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)
-#include <asm/system.h>
-#endif
 
 #include <bcm47xx.h>
 #include <linux/bcm47xx_nvram.h>