VRSF_REQ_STOP
if ((ring->vr_state_flags & VRSF_REQ_STOP) == 0) {
ring->vr_state_flags |= VRSF_REQ_STOP;
return ((ring->vr_state_flags & VRSF_REQ_STOP) != 0);
if ((ring->vr_state_flags & VRSF_REQ_STOP) != 0) {