L2DATA
struct l2t_data *d = L2DATA(dev);
struct l2t_data *d = L2DATA(dev);
struct l2t_data *d = L2DATA(dev);
l2t_hold(L2DATA(tdev), e);
l2t_release(L2DATA(tdev), e);
L2DATA(dev) = t3_init_l2t(l2t_capacity);
if (!L2DATA(dev))
t3_free_l2t(L2DATA(dev));
L2DATA(dev) = NULL;
t3_free_l2t(L2DATA(tdev));
L2DATA(tdev) = NULL;