NAPI_STATE_THREADED
NAPIF_STATE_THREADED = BIT(NAPI_STATE_THREADED),
set_bit(NAPI_STATE_THREADED, &napi->state);
if (test_bit(NAPI_STATE_THREADED, &napi->state)) {
assign_bit(NAPI_STATE_THREADED, &napi->state, threaded);
if (test_bit(NAPI_STATE_THREADED, &n->state))