Re: [PATCH net-next v2 1/3] dsa: add support for Arrow XRS700x tag trailer

+static struct sk_buff *xrs700x_rcv(struct sk_buff *skb, struct net_device *dev,
+				   struct packet_type *pt)
+{
+	int source_port;
+	u8 *trailer;
+
+	if (skb_linearize(skb))
+		return NULL;

Something for Vladimir:

Could this linearise be moved into the core, depending on the
tail_tag?

+	if (pskb_trim_rcsum(skb, skb->len - 1))
+		return NULL;

And the overhead is also in dsa_devlink_ops, so maybe this can be
moved as well?

      Andrew