ILL_DL_UNBIND_IN_PROGRESS
ill->ill_state_flags &= ~ILL_DL_UNBIND_IN_PROGRESS;
ill->ill_state_flags |= ILL_DL_UNBIND_IN_PROGRESS;
ill->ill_state_flags &= ~ILL_DL_UNBIND_IN_PROGRESS;
while (ill->ill_state_flags & ILL_DL_UNBIND_IN_PROGRESS)