ath79: ag71xx: remove code for legacy kernels

ath79 does not support kernels prior to 4.19 anymore.
Remove legacy code for those kernels from the ag71xx driver.

Signed-off-by: David Bauer <mail@david-bauer.net>

diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
index edb026544c8ded0dde9fc7f5eba0a91e1b5bfa41..0db11a6785bc599fac00259be388206456c5298f 100644 (file)
--- a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -1080,16 +1080,9 @@ static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
        return -EOPNOTSUPP;
 }
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
-static void ag71xx_oom_timer_handler(unsigned long data)
-{
-       struct net_device *dev = (struct net_device *) data;
-       struct ag71xx *ag = netdev_priv(dev);
-#else
 static void ag71xx_oom_timer_handler(struct timer_list *t)
 {
        struct ag71xx *ag = from_timer(ag, t, oom_timer);
-#endif
 
        napi_schedule(&ag->napi);
 }
@@ -1214,22 +1207,14 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
        unsigned int offset = ag->rx_buf_offset;
        int ring_mask = BIT(ring->order) - 1;
        int ring_size = BIT(ring->order);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
        struct list_head rx_list;
        struct sk_buff *next;
-#else
-       struct sk_buff_head queue;
-#endif
        struct sk_buff *skb;
        int done = 0;
 
        DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
                        dev->name, limit, ring->curr, ring->dirty);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
        INIT_LIST_HEAD(&rx_list);
-#else
-       skb_queue_head_init(&queue);
-#endif
 
        while (done < limit) {
                unsigned int i = ring->curr & ring_mask;
@@ -1271,11 +1256,7 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
                } else {
                        skb->dev = dev;
                        skb->ip_summed = CHECKSUM_NONE;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
                        list_add_tail(&skb->list, &rx_list);
-#else
-                       __skb_queue_tail(&queue, skb);
-#endif
                }
 
 next:
@@ -1287,16 +1268,9 @@ next:
 
        ag71xx_ring_rx_refill(ag);
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,19,0))
        list_for_each_entry_safe(skb, next, &rx_list, list)
                skb->protocol = eth_type_trans(skb, dev);
        netif_receive_skb_list(&rx_list);
-#else
-       while ((skb = __skb_dequeue(&queue)) != NULL) {
-               skb->protocol = eth_type_trans(skb, dev);
-               netif_receive_skb(skb);
-       }
-#endif
 
        DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
                dev->name, ring->curr, ring->dirty, done);
@@ -1520,13 +1494,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 
        INIT_DELAYED_WORK(&ag->restart_work, ag71xx_restart_work_func);
 
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0))
-       init_timer(&ag->oom_timer);
-       ag->oom_timer.data = (unsigned long) dev;
-       ag->oom_timer.function = ag71xx_oom_timer_handler;
-#else
        timer_setup(&ag->oom_timer, ag71xx_oom_timer_handler, 0);
-#endif
 
        tx_size = AG71XX_TX_RING_SIZE_DEFAULT;
        ag->rx_ring.order = ag71xx_ring_size_order(AG71XX_RX_RING_SIZE_DEFAULT);