net/mlx5e: vxlan: Return bool instead of opaque ptr in port_lookup()

struct mlx5_vxlan_port is not exposed to the outside callers, it is
redundant to return a pointer to it from mlx5_vxlan_port_lookup(), to be
only used as a boolean, so just return a boolean.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.c

@@ -77,9 +77,10 @@ static int mlx5_vxlan_core_del_port_cmd(struct mlx5_core_dev *mdev, u16 port)
 	return mlx5_cmd_exec_in(mdev, delete_vxlan_udp_dport, in);
 }
 
-struct mlx5_vxlan_port *mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port)
+bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port)
 {
-	struct mlx5_vxlan_port *retptr = NULL, *vxlanp;
+	struct mlx5_vxlan_port *vxlanp;
+	bool found = false;
 
 	if (!mlx5_vxlan_allowed(vxlan))
 		return NULL;
@@ -87,12 +88,12 @@ struct mlx5_vxlan_port *mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 por
 	rcu_read_lock();
 	hash_for_each_possible_rcu(vxlan->htable, vxlanp, hlist, port)
 		if (vxlanp->udp_port == port) {
-			retptr = vxlanp;
+			found = true;
 			break;
 		}
 	rcu_read_unlock();
 
-	return retptr;
+	return found;
 }
 
 static struct mlx5_vxlan_port *vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port)

drivers/net/ethernet/mellanox/mlx5/core/lib/vxlan.h

@@ -50,15 +50,14 @@ struct mlx5_vxlan *mlx5_vxlan_create(struct mlx5_core_dev *mdev);
 void mlx5_vxlan_destroy(struct mlx5_vxlan *vxlan);
 int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port);
 int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port);
-struct mlx5_vxlan_port *mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port);
+bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port);
 #else
 static inline struct mlx5_vxlan*
 mlx5_vxlan_create(struct mlx5_core_dev *mdev) { return ERR_PTR(-EOPNOTSUPP); }
 static inline void mlx5_vxlan_destroy(struct mlx5_vxlan *vxlan) { return; }
 static inline int mlx5_vxlan_add_port(struct mlx5_vxlan *vxlan, u16 port) { return -EOPNOTSUPP; }
 static inline int mlx5_vxlan_del_port(struct mlx5_vxlan *vxlan, u16 port) { return -EOPNOTSUPP; }
-static inline struct mx5_vxlan_port*
-mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port) { return NULL; }
+static inline bool mlx5_vxlan_lookup_port(struct mlx5_vxlan *vxlan, u16 port) { return false; }
 #endif
 
 #endif /* __MLX5_VXLAN_H__ */