net: dsa: rename references to "lag" as "lag_dev"

In preparation of converting struct net_device *dp->lag_dev into a
struct dsa_lag *dp->lag, we need to rename, for consistency purposes,
all occurrences of the "lag" variable in the DSA core to "lag_dev".
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

include/net/dsa.h

@@ -182,12 +182,12 @@ static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst,
 }
 
 static inline int dsa_lag_id(struct dsa_switch_tree *dst,
-			     struct net_device *lag)
+			     struct net_device *lag_dev)
 {
 	unsigned int id;
 
 	dsa_lags_foreach_id(id, dst) {
-		if (dsa_lag_dev(dst, id) == lag)
+		if (dsa_lag_dev(dst, id) == lag_dev)
 			return id;
 	}
 
@@ -966,10 +966,10 @@ struct dsa_switch_ops {
 	int	(*crosschip_lag_change)(struct dsa_switch *ds, int sw_index,
 					int port);
 	int	(*crosschip_lag_join)(struct dsa_switch *ds, int sw_index,
-				      int port, struct net_device *lag,
+				      int port, struct net_device *lag_dev,
 				      struct netdev_lag_upper_info *info);
 	int	(*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index,
-				       int port, struct net_device *lag);
+				       int port, struct net_device *lag_dev);
 
 	/*
 	 * PTP functionality
@@ -1041,10 +1041,10 @@ struct dsa_switch_ops {
 	 */
 	int	(*port_lag_change)(struct dsa_switch *ds, int port);
 	int	(*port_lag_join)(struct dsa_switch *ds, int port,
-				 struct net_device *lag,
+				 struct net_device *lag_dev,
 				 struct netdev_lag_upper_info *info);
 	int	(*port_lag_leave)(struct dsa_switch *ds, int port,
-				  struct net_device *lag);
+				  struct net_device *lag_dev);
 
 	/*
 	 * HSR integration

net/dsa/dsa2.c

@@ -74,7 +74,7 @@ int dsa_broadcast(unsigned long e, void *v)
 /**
  * dsa_lag_map() - Map LAG netdev to a linear LAG ID
  * @dst: Tree in which to record the mapping.
- * @lag: Netdev that is to be mapped to an ID.
+ * @lag_dev: Netdev that is to be mapped to an ID.
  *
  * dsa_lag_id/dsa_lag_dev can then be used to translate between the
  * two spaces. The size of the mapping space is determined by the
@@ -82,17 +82,17 @@ int dsa_broadcast(unsigned long e, void *v)
  * it unset if it is not needed, in which case these functions become
  * no-ops.
  */
-void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag)
+void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag_dev)
 {
 	unsigned int id;
 
-	if (dsa_lag_id(dst, lag) >= 0)
+	if (dsa_lag_id(dst, lag_dev) >= 0)
 		/* Already mapped */
 		return;
 
 	for (id = 0; id < dst->lags_len; id++) {
 		if (!dsa_lag_dev(dst, id)) {
-			dst->lags[id] = lag;
+			dst->lags[id] = lag_dev;
 			return;
 		}
 	}
@@ -108,22 +108,22 @@ void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag)
 /**
  * dsa_lag_unmap() - Remove a LAG ID mapping
  * @dst: Tree in which the mapping is recorded.
- * @lag: Netdev that was mapped.
+ * @lag_dev: Netdev that was mapped.
  *
  * As there may be multiple users of the mapping, it is only removed
  * if there are no other references to it.
  */
-void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag)
+void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag_dev)
 {
 	struct dsa_port *dp;
 	unsigned int id;
 
-	dsa_lag_foreach_port(dp, dst, lag)
+	dsa_lag_foreach_port(dp, dst, lag_dev)
 		/* There are remaining users of this mapping */
 		return;
 
 	dsa_lags_foreach_id(id, dst) {
-		if (dsa_lag_dev(dst, id) == lag) {
+		if (dsa_lag_dev(dst, id) == lag_dev) {
 			dst->lags[id] = NULL;
 			break;
 		}

net/dsa/dsa_priv.h

@@ -76,7 +76,7 @@ struct dsa_notifier_mdb_info {
 
 /* DSA_NOTIFIER_LAG_* */
 struct dsa_notifier_lag_info {
-	struct net_device *lag;
+	struct net_device *lag_dev;
 	int sw_index;
 	int port;
 
@@ -487,8 +487,8 @@ int dsa_switch_register_notifier(struct dsa_switch *ds);
 void dsa_switch_unregister_notifier(struct dsa_switch *ds);
 
 /* dsa2.c */
-void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag);
-void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag);
+void dsa_lag_map(struct dsa_switch_tree *dst, struct net_device *lag_dev);
+void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag_dev);
 int dsa_tree_notify(struct dsa_switch_tree *dst, unsigned long e, void *v);
 int dsa_broadcast(unsigned long e, void *v);
 int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,

net/dsa/port.c

@@ -447,27 +447,27 @@ int dsa_port_lag_change(struct dsa_port *dp,
 	return dsa_port_notify(dp, DSA_NOTIFIER_LAG_CHANGE, &info);
 }
 
-int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag,
+int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev,
 		      struct netdev_lag_upper_info *uinfo,
 		      struct netlink_ext_ack *extack)
 {
 	struct dsa_notifier_lag_info info = {
 		.sw_index = dp->ds->index,
 		.port = dp->index,
-		.lag = lag,
+		.lag_dev = lag_dev,
 		.info = uinfo,
 	};
 	struct net_device *bridge_dev;
 	int err;
 
-	dsa_lag_map(dp->ds->dst, lag);
-	dp->lag_dev = lag;
+	dsa_lag_map(dp->ds->dst, lag_dev);
+	dp->lag_dev = lag_dev;
 
 	err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_JOIN, &info);
 	if (err)
 		goto err_lag_join;
 
-	bridge_dev = netdev_master_upper_dev_get(lag);
+	bridge_dev = netdev_master_upper_dev_get(lag_dev);
 	if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
 		return 0;
 
@@ -481,11 +481,11 @@ int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag,
 	dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info);
 err_lag_join:
 	dp->lag_dev = NULL;
-	dsa_lag_unmap(dp->ds->dst, lag);
+	dsa_lag_unmap(dp->ds->dst, lag_dev);
 	return err;
 }
 
-void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag)
+void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag_dev)
 {
 	struct net_device *br = dsa_port_bridge_dev_get(dp);
 
@@ -493,13 +493,13 @@ void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag)
 		dsa_port_pre_bridge_leave(dp, br);
 }
 
-void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag)
+void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev)
 {
 	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct dsa_notifier_lag_info info = {
 		.sw_index = dp->ds->index,
 		.port = dp->index,
-		.lag = lag,
+		.lag_dev = lag_dev,
 	};
 	int err;
 
@@ -521,7 +521,7 @@ void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag)
 			"port %d failed to notify DSA_NOTIFIER_LAG_LEAVE: %pe\n",
 			dp->index, ERR_PTR(err));
 
-	dsa_lag_unmap(dp->ds->dst, lag);
+	dsa_lag_unmap(dp->ds->dst, lag_dev);
 }
 
 /* Must be called under rcu_read_lock() */

net/dsa/switch.c

@@ -468,12 +468,12 @@ static int dsa_switch_lag_join(struct dsa_switch *ds,
 			       struct dsa_notifier_lag_info *info)
 {
 	if (ds->index == info->sw_index && ds->ops->port_lag_join)
-		return ds->ops->port_lag_join(ds, info->port, info->lag,
+		return ds->ops->port_lag_join(ds, info->port, info->lag_dev,
 					      info->info);
 
 	if (ds->index != info->sw_index && ds->ops->crosschip_lag_join)
 		return ds->ops->crosschip_lag_join(ds, info->sw_index,
-						   info->port, info->lag,
+						   info->port, info->lag_dev,
 						   info->info);
 
 	return -EOPNOTSUPP;
@@ -483,11 +483,11 @@ static int dsa_switch_lag_leave(struct dsa_switch *ds,
 				struct dsa_notifier_lag_info *info)
 {
 	if (ds->index == info->sw_index && ds->ops->port_lag_leave)
-		return ds->ops->port_lag_leave(ds, info->port, info->lag);
+		return ds->ops->port_lag_leave(ds, info->port, info->lag_dev);
 
 	if (ds->index != info->sw_index && ds->ops->crosschip_lag_leave)
 		return ds->ops->crosschip_lag_leave(ds, info->sw_index,
-						    info->port, info->lag);
+						    info->port, info->lag_dev);
 
 	return -EOPNOTSUPP;
 }