net: dsa: Add a private structure pointer to dsa_port

This is supposed to share information between the driver and the tagger,
or used by the tagger to keep some state. Its use is optional.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 0260b73..e20be1c 100644 (file)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -211,6 +211,12 @@ struct dsa_port {
        struct sk_buff_head     xmit_queue;
 
        /*
+        * Give the switch driver somewhere to hang its per-port private data
+        * structures (accessible from the tagger).
+        */
+       void *priv;
+
+       /*
         * Original copy of the master netdev ethtool_ops
         */
        const struct ethtool_ops *orig_ethtool_ops;