NFSD: Update the NFSv2 SETACL argument decoder to use struct xdr_stream

static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p)

{

	struct nfsd3_setaclargs *args = rqstp->rq_argp;

	struct kvec *head = rqstp->rq_arg.head;

	unsigned int base;

	int n;

	struct xdr_stream *xdr = &rqstp->rq_arg_stream;

	struct nfsd3_setaclargs *argp = rqstp->rq_argp;

	p = nfs3svc_decode_fh(p, &args->fh);

	if (!p)

	if (!svcxdr_decode_nfs_fh3(xdr, &argp->fh))

		return 0;

	if (xdr_stream_decode_u32(xdr, &argp->mask) < 0)

		return 0;

	args->mask = ntohl(*p++);

	if (args->mask & ~NFS_ACL_MASK ||

	    !xdr_argsize_check(rqstp, p))

	if (argp->mask & ~NFS_ACL_MASK)

		return 0;

	if (!nfs_stream_decode_acl(xdr, NULL, (argp->mask & NFS_ACL) ?

				   &argp->acl_access : NULL))

		return 0;

	if (!nfs_stream_decode_acl(xdr, NULL, (argp->mask & NFS_DFACL) ?

				   &argp->acl_default : NULL))

		return 0;

	base = (char *)p - (char *)head->iov_base;

	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,

			  (args->mask & NFS_ACL) ?

			  &args->acl_access : NULL);

	if (n > 0)

		n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,

				  (args->mask & NFS_DFACL) ?

				  &args->acl_default : NULL);

	return (n > 0);

	return 1;

}

/*