mlxsw: spectrum_span: Rename misnamed variable l3edev

Calling the variable l3edev was relevant when neighbor lookup was the
last stage in the simulated pipeline. Now that mlxsw handles bridges and
vlan devices as well, calling it "L3" is a misnomer.

Thus in mlxsw_sp_span_dmac(), rename to "dev", because that function is
just a service routine where the distinction between tunnel and egress
device isn't necessary.

In mlxsw_sp_span_entry_tunnel_parms_common(), rename to "edev" to
emphasize that the routine traces packet egress.
Signed-off-by: NPetr Machata <petrm@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c

@@ -137,14 +137,14 @@ struct mlxsw_sp_span_entry_ops mlxsw_sp_span_entry_ops_phys = {
 
 static int mlxsw_sp_span_dmac(struct neigh_table *tbl,
 			      const void *pkey,
-			      struct net_device *l3edev,
+			      struct net_device *dev,
 			      unsigned char dmac[ETH_ALEN])
 {
-	struct neighbour *neigh = neigh_lookup(tbl, pkey, l3edev);
+	struct neighbour *neigh = neigh_lookup(tbl, pkey, dev);
 	int err = 0;
 
 	if (!neigh) {
-		neigh = neigh_create(tbl, pkey, l3edev);
+		neigh = neigh_create(tbl, pkey, dev);
 		if (IS_ERR(neigh))
 			return PTR_ERR(neigh);
 	}
@@ -246,7 +246,7 @@ mlxsw_sp_span_entry_vlan(const struct net_device *vlan_dev,
 }
 
 static __maybe_unused int
-mlxsw_sp_span_entry_tunnel_parms_common(struct net_device *l3edev,
+mlxsw_sp_span_entry_tunnel_parms_common(struct net_device *edev,
 					union mlxsw_sp_l3addr saddr,
 					union mlxsw_sp_l3addr daddr,
 					union mlxsw_sp_l3addr gw,
@@ -260,31 +260,31 @@ mlxsw_sp_span_entry_tunnel_parms_common(struct net_device *l3edev,
 	if (mlxsw_sp_l3addr_is_zero(gw))
 		gw = daddr;
 
-	if (!l3edev || mlxsw_sp_span_dmac(tbl, &gw, l3edev, dmac))
+	if (!edev || mlxsw_sp_span_dmac(tbl, &gw, edev, dmac))
 		goto unoffloadable;
 
-	if (is_vlan_dev(l3edev))
-		l3edev = mlxsw_sp_span_entry_vlan(l3edev, &vid);
+	if (is_vlan_dev(edev))
+		edev = mlxsw_sp_span_entry_vlan(edev, &vid);
 
-	if (netif_is_bridge_master(l3edev)) {
-		l3edev = mlxsw_sp_span_entry_bridge(l3edev, dmac, &vid);
-		if (!l3edev)
+	if (netif_is_bridge_master(edev)) {
+		edev = mlxsw_sp_span_entry_bridge(edev, dmac, &vid);
+		if (!edev)
 			goto unoffloadable;
 	}
 
-	if (is_vlan_dev(l3edev)) {
-		if (vid || !(l3edev->flags & IFF_UP))
+	if (is_vlan_dev(edev)) {
+		if (vid || !(edev->flags & IFF_UP))
 			goto unoffloadable;
-		l3edev = mlxsw_sp_span_entry_vlan(l3edev, &vid);
+		edev = mlxsw_sp_span_entry_vlan(edev, &vid);
 	}
 
-	if (!mlxsw_sp_port_dev_check(l3edev))
+	if (!mlxsw_sp_port_dev_check(edev))
 		goto unoffloadable;
 
-	sparmsp->dest_port = netdev_priv(l3edev);
+	sparmsp->dest_port = netdev_priv(edev);
 	sparmsp->ttl = ttl;
 	memcpy(sparmsp->dmac, dmac, ETH_ALEN);
-	memcpy(sparmsp->smac, l3edev->dev_addr, ETH_ALEN);
+	memcpy(sparmsp->smac, edev->dev_addr, ETH_ALEN);
 	sparmsp->saddr = saddr;
 	sparmsp->daddr = daddr;
 	sparmsp->vid = vid;