nfs4_proc_setclientid_confirm
status = nfs4_proc_setclientid_confirm(pos, &clid, cred);
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct nfs4_setclientid_res *arg, const struct cred *);
status = nfs4_proc_setclientid_confirm(clp, &clid, cred);