net: sfp: remove sfp-bus use of netdevs

The sfp-bus code now no longer has any use for the network device
structure, so remove its use.
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/phy/phylink.c

@@ -565,8 +565,7 @@ static int phylink_register_sfp(struct phylink *pl,
 		return ret;
 	}
 
-	pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl->netdev, pl,
-					    &sfp_phylink_ops);
+	pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl, &sfp_phylink_ops);
 	if (!pl->sfp_bus)
 		return -ENOMEM;
 

drivers/net/phy/sfp-bus.c

@@ -24,7 +24,6 @@ struct sfp_bus {
 
 	const struct sfp_upstream_ops *upstream_ops;
 	void *upstream;
-	struct net_device *netdev;
 	struct phy_device *phydev;
 
 	bool registered;
@@ -443,13 +442,11 @@ static void sfp_upstream_clear(struct sfp_bus *bus)
 {
 	bus->upstream_ops = NULL;
 	bus->upstream = NULL;
-	bus->netdev = NULL;
 }
 
 /**
  * sfp_register_upstream() - Register the neighbouring device
  * @fwnode: firmware node for the SFP bus
- * @ndev: network device associated with the interface
  * @upstream: the upstream private data
  * @ops: the upstream's &struct sfp_upstream_ops
  *
@@ -460,7 +457,7 @@ static void sfp_upstream_clear(struct sfp_bus *bus)
  * On error, returns %NULL.
  */
 struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
-				      struct net_device *ndev, void *upstream,
+				      void *upstream,
 				      const struct sfp_upstream_ops *ops)
 {
 	struct sfp_bus *bus = sfp_bus_get(fwnode);
@@ -470,7 +467,6 @@ struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
 		rtnl_lock();
 		bus->upstream_ops = ops;
 		bus->upstream = upstream;
-		bus->netdev = ndev;
 
 		if (bus->sfp) {
 			ret = sfp_register_bus(bus);
@@ -592,7 +588,7 @@ struct sfp_bus *sfp_register_socket(struct device *dev, struct sfp *sfp,
 		bus->sfp = sfp;
 		bus->socket_ops = ops;
 
-		if (bus->netdev) {
+		if (bus->upstream_ops) {
 			ret = sfp_register_bus(bus);
 			if (ret)
 				sfp_socket_clear(bus);
@@ -612,7 +608,7 @@ EXPORT_SYMBOL_GPL(sfp_register_socket);
 void sfp_unregister_socket(struct sfp_bus *bus)
 {
 	rtnl_lock();
-	if (bus->netdev)
+	if (bus->upstream_ops)
 		sfp_unregister_bus(bus);
 	sfp_socket_clear(bus);
 	rtnl_unlock();

include/linux/sfp.h

@@ -464,7 +464,6 @@ enum {
 struct fwnode_handle;
 struct ethtool_eeprom;
 struct ethtool_modinfo;
-struct net_device;
 struct sfp_bus;
 
 /**
@@ -510,7 +509,7 @@ int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
 void sfp_upstream_start(struct sfp_bus *bus);
 void sfp_upstream_stop(struct sfp_bus *bus);
 struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
-				      struct net_device *ndev, void *upstream,
+				      void *upstream,
 				      const struct sfp_upstream_ops *ops);
 void sfp_unregister_upstream(struct sfp_bus *bus);
 #else
@@ -555,8 +554,7 @@ static inline void sfp_upstream_stop(struct sfp_bus *bus)
 }
 
 static inline struct sfp_bus *sfp_register_upstream(
-	struct fwnode_handle *fwnode,
-	struct net_device *ndev, void *upstream,
+	struct fwnode_handle *fwnode, void *upstream,
 	const struct sfp_upstream_ops *ops)
 {
 	return (struct sfp_bus *)-1;