The Lakers and Luke Walton have reached agreement on a six-year, $30-million contract. Word is that general manager Mitch Kupchak was in touch with Walton’s agent, Lon Babby, shortly after midnight Sunday and got the deal done. “They called at the earliest possible moment, and we worked on it all day” Babby told ESPN.com. “They wanted him back, and Luke wanted to be there. We wanted to make every effort to get an agreement before we went out and looked at any other teams.” Walton, 27, averaged 11.4 points, 5.0 rebounds and 4.3 assists. The move will not officially be announced until July 11, when contracts can be signed.