diff --git a/include/linux/mlx4/cq.h b/include/linux/mlx4/cq.h
index 1243eba..f7c3511 100644
--- a/include/linux/mlx4/cq.h
+++ b/include/linux/mlx4/cq.h
@@ -130,4 +130,7 @@
 	MLX4_CQ_DB_REQ_NOT		= 2 << 24
 };
 
+int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
+		   u16 count, u16 period);
+
 #endif /* MLX4_CQ_H */