Re: [PATCH net-next 09/19] net: usb: aqc111: Implement RX data path

+static int aqc111_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+	struct sk_buff *new_skb = NULL;
+	u32 skb_len = 0;
+	u32 desc_offset = 0; /*RX Header Offset*/
+	u32 start_of_descs = 0;
+	u16 pkt_count = 0;
+	u32 pkt_total_offset = 0;
+	struct aq_rx_packet_desc *pkt_desc = NULL;
+	struct aq_rx_desc_header desc_hdr;
+
+	if (!skb)
+		goto err;
+
+	if (skb->len == 0)
+		goto err;
+
+	skb_len = skb->len;
+	/* RX Offset Header */
+	skb_trim(skb, skb->len - sizeof(struct aq_rx_desc_header));
+	memcpy(&desc_hdr, skb_tail_pointer(skb),
+	       sizeof(struct aq_rx_desc_header));
+	le64_to_cpus(&desc_hdr);

Same question as for TX.

+
+	/* Check these packets */
+	desc_offset = (u32)desc_hdr.desc_offset;

I don't think you need the cast here.

Please review all your casts and remove any that are not needed.

       Andrew