mlx4_en_free_tx_desc
ring->free_tx_desc = mlx4_en_free_tx_desc;
INDIRECT_CALLABLE_DECLARE(u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
mlx4_en_free_tx_desc,
u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,