team: add mode priv to port

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 343f4ff..dea2d8a 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -793,7 +793,8 @@
 		return -EBUSY;
 	}
 
-	port = kzalloc(sizeof(struct team_port), GFP_KERNEL);
+	port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
+		       GFP_KERNEL);
 	if (!port)
 		return -ENOMEM;
 
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index d45fcd5..54af95f 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -61,6 +61,7 @@
 	} orig;
 
 	struct rcu_head rcu;
+	long mode_priv[0];
 };
 
 struct team_mode_ops {
@@ -108,6 +109,7 @@
 	const char *kind;
 	struct module *owner;
 	size_t priv_size;
+	size_t port_priv_size;
 	const struct team_mode_ops *ops;
 };