ICE_CORER_REQ
test_bit(ICE_CORER_REQ, state) ||
set_bit(ICE_CORER_REQ, pf->state);
clear_bit(ICE_CORER_REQ, pf->state);
clear_bit(ICE_CORER_REQ, pf->state);
if (test_bit(ICE_CORER_REQ, pf->state))
set_bit(ICE_CORER_REQ, pf->state);