k_priv
entry = (uintptr_t)k->k_priv;
entry = (uintptr_t)k->k_priv;
k->k_priv = (void *)entry;
entry = (uintptr_t)k->k_priv;
entry = (uintptr_t)k->k_priv;
k->k_priv = tp;
struct tty *tp = k->k_priv;
struct tty *tp = k->k_priv;