netdev - [PATCH net-next 4/4] net: sfp: remove sfp-bus use of netdevs

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Message-Id: <E1hSk7E-0000wD-LS@rmk-PC.armlinux.org.uk>
Date:   Mon, 20 May 2019 16:22:16 +0100
From:   Russell King <rmk+kernel@...linux.org.uk>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Vladimir Oltean <olteanv@...il.com>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org
Subject: [PATCH net-next 4/4] 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: Russell King <rmk+kernel@...linux.org.uk>
---
 drivers/net/phy/phylink.c |  3 +--
 drivers/net/phy/sfp-bus.c | 10 +++-------
 include/linux/sfp.h       |  6 ++----
 3 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 7161c0fbb03c..e9ffe92c0650 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -518,8 +518,7 @@ 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;
 
diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index c664c905830a..5bc8099eaaf1 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -23,7 +23,6 @@ struct sfp_bus {
 
 	const struct sfp_upstream_ops *upstream_ops;
 	void *upstream;
-	struct net_device *netdev;
 	struct phy_device *phydev;
 
 	bool registered;
@@ -442,13 +441,11 @@ 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
  *
@@ -459,7 +456,7 @@ 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);
@@ -469,7 +466,6 @@ 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);
@@ -591,7 +587,7 @@ 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);
@@ -611,7 +607,7 @@ 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();
diff --git a/include/linux/sfp.h b/include/linux/sfp.h
index a3f0336dd703..1c35428e98bc 100644
--- a/include/linux/sfp.h
+++ b/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;
-- 
2.7.4