Is disclosure of a witness's residence address unnecessary?

We hold that the district court did not abuse its discretion in limiting cross-examination of the witnesses. In Ahlswede v. Wolff, 720 F.2d 1108, 1110 (9th Cir.1983), cert. denied, 469 U.S. 873, 105 S.Ct. 225, 83 L.Ed.2d 155 (1984), we held that where a witness gives his true name and occupation, describes his professional background, and discloses his relationship with the defendant, disclosure of the witness's residence address is unnecessary. Although

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