+ if (r)
+ return;
+free_skb:
+ /* We are always in a soft irq. */
+ dev_kfree_skb(skb);
+}
+
+static void do_rx(unsigned long mac_ptr)
+{
+ struct zd_mac *mac = (struct zd_mac *)mac_ptr;
+ struct sk_buff *skb;
+
+ while ((skb = skb_dequeue(&mac->rx_queue)) != NULL)
+ zd_mac_rx(mac, skb);
+}
+
+int zd_mac_rx_irq(struct zd_mac *mac, const u8 *buffer, unsigned int length)
+{
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(sizeof(struct zd_rt_hdr) + length);
+ if (!skb) {
+ dev_warn(zd_mac_dev(mac), "Could not allocate skb.\n");
+ return -ENOMEM;
+ }
+ skb_reserve(skb, sizeof(struct zd_rt_hdr));
+ memcpy(__skb_put(skb, length), buffer, length);
+ skb_queue_tail(&mac->rx_queue, skb);
+ tasklet_schedule(&mac->rx_tasklet);