net: dsa: Refactor selection of tag ops into a function

Replace the two switch statements with an array lookup, and store the
result in the dsa tree structure. The drivers no longer need to know
the selected tag protocol, so remove it from the dsa switch structure.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 34 deletions

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 52f1183c42a0..35e5f0f6688b 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -521,14 +521,6 @@ static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
         return NETDEV_TX_OK;
 }
 
-static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
-                                            struct net_device *dev)
-{
-        /* Just return the original SKB */
-        return skb;
-}
-
-
 /* ethtool operations *******************************************************/
 static int
 dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
@@ -1151,32 +1143,7 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
         p = netdev_priv(slave_dev);
         p->parent = ds;
         p->port = port;
-
-        switch (ds->dst->tag_protocol) {
-#ifdef CONFIG_NET_DSA_TAG_DSA
-        case DSA_TAG_PROTO_DSA:
-                p->xmit = dsa_netdev_ops.xmit;
-                break;
-#endif
-#ifdef CONFIG_NET_DSA_TAG_EDSA
-        case DSA_TAG_PROTO_EDSA:
-                p->xmit = edsa_netdev_ops.xmit;
-                break;
-#endif
-#ifdef CONFIG_NET_DSA_TAG_TRAILER
-        case DSA_TAG_PROTO_TRAILER:
-                p->xmit = trailer_netdev_ops.xmit;
-                break;
-#endif
-#ifdef CONFIG_NET_DSA_TAG_BRCM
-        case DSA_TAG_PROTO_BRCM:
-                p->xmit = brcm_netdev_ops.xmit;
-                break;
-#endif
-        default:
-                p->xmit = dsa_slave_notag_xmit;
-                break;
-        }
+        p->xmit = dst->tag_ops->xmit;
 
         p->old_pause = -1;
         p->old_link = -1;