dsa: add switch chip cascading support

[mirror_ubuntu-jammy-kernel.git] / net / dsa / tag_trailer.c

diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index a6d959da678478eda1d888e66b1bf05e258dbc04..1c3e30c38b86e69728d7c521f3ea020f874c20c0 100644 (file)
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -1,6 +1,6 @@
 /*
  * net/dsa/tag_trailer.c - Trailer tag format handling
- * Copyright (c) 2008 Marvell Semiconductor
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -59,7 +59,7 @@ int trailer_xmit(struct sk_buff *skb, struct net_device *dev)
 
        nskb->protocol = htons(ETH_P_TRAILER);
 
-       nskb->dev = p->parent->master_netdev;
+       nskb->dev = p->parent->dst->master_netdev;
        dev_queue_xmit(nskb);
 
        return NETDEV_TX_OK;
@@ -68,12 +68,14 @@ int trailer_xmit(struct sk_buff *skb, struct net_device *dev)
 static int trailer_rcv(struct sk_buff *skb, struct net_device *dev,
                       struct packet_type *pt, struct net_device *orig_dev)
 {
-       struct dsa_switch *ds = dev->dsa_ptr;
+       struct dsa_switch_tree *dst = dev->dsa_ptr;
+       struct dsa_switch *ds;
        u8 *trailer;
        int source_port;
 
-       if (unlikely(ds == NULL))
+       if (unlikely(dst == NULL))
                goto out_drop;
+       ds = dst->ds[0];
 
        skb = skb_unshare(skb, GFP_ATOMIC);
        if (skb == NULL)