KS_DELETE
k->k_state |= KS_DELETE;
k->k_state &= ~KS_DELETE;
k->k_state |= KS_DELETE;
if ((k->k_state & KS_DELETE)
k->k_state |= KS_DELETE;
k->k_state |= KS_DELETE;
k->k_state |= KS_DELETE;
k->k_state |= KS_DELETE;
k->k_state &= ~(KS_DELETE | KS_ADD | KS_CHANGE | KS_DEL_ADD
k->k_state |= KS_DELETE;
k->k_state |= KS_DELETE;