CREATE DEFINER='mysql.sys'@'localhost'
  PROCEDURE sp_firewall_group_delist(
    IN arg_group_name VARCHAR(288),
    IN arg_userhost VARCHAR(288))
  SQL SECURITY INVOKER
BEGIN
  DECLARE result VARCHAR(160);
  SELECT firewall_group_delist(arg_group_name, arg_userhost) INTO result;
  IF result = "OK" THEN
    DELETE IGNORE FROM mysql.firewall_membership WHERE group_id = arg_group_name AND member_id = arg_userhost;
  ELSE
    SELECT result;
  END IF;
END