RCUTORTURE_RDR_UPDOWN
WARN_ON_ONCE(idxold2 & ~(RCUTORTURE_RDR_ALLBITS | RCUTORTURE_RDR_UPDOWN));
if (statesold & RCUTORTURE_RDR_UPDOWN) {
WARN_ON_ONCE(mask & RCUTORTURE_RDR_UPDOWN);
(rtorsp->readstate & RCUTORTURE_RDR_UPDOWN));
WARN_ON_ONCE(newstate & RCUTORTURE_RDR_UPDOWN);
rtorsup->rtorsu_rtors.readstate = idx | RCUTORTURE_RDR_UPDOWN;