timevalsub
timevalsub(&t2, &clk, &prev_clk);
timevalsub(&now, &clk, &epoch);
timevalsub(&wtime, &ifinit_timer, &now);
timevalsub(&t2, &flush_kern_timer, &now);
timevalsub(&t2, &next_bcast, &now);
timevalsub(&t2, &no_flash, &now);
timevalsub(&t2, &age_timer, &now);
timevalsub(&t2, &need_kern, &now);
timevalsub(&t2, &rdisc_timer, &now);
static void timevalsub(struct timeval *, struct timeval *, struct timeval *);
timevalsub(&delta, event_time);
timevalsub(&duration_tv, &delta);
timevalsub(&tv, &split_timeout);
timevalsub(&timelefttv, ¤ttv);
timevalsub(&b2, &b1);
timevalsub(&b1, &b0);
timevalsub(&b2, &b1);
timevalsub(&delta, &sdev->target->sbp->last_busreset);
timevalsub(&t, &delta);
timevalsub(&cur_time, &start_time);
timevalsub(&cur_time, &start_time);
timevalsub(&cur_time, &start_time);
timevalsub(&now, &t->timerstop);
timevalsub(&now, &t->timersub);
timevalsub(&when, &now);
timevalsub(&now, &t->timersub);
timevalsub(&time, ×tamp);
timevalsub(&time, &tx_buf->timestamp);
timevalsub(&tmp, &p->p_start);
timevalsub(&ntv, &ctv);
timevalsub(&delta, lasttime);
timevalsub(&delta, &tv1);
timevalsub(&tv2, &maxtime);
timevalsub(&aitv.it_value, &ctv);
timevalsub(&busy_time, &ds->start_time);
#define BW_TIMEVALDECR(vvp, uvp) timevalsub((vvp), (uvp))
timevalsub(&age, &beg->timestamp);
timevalsub(&diff, &alink->lastWrite);
timevalsub(&tv, &priv->startTime);
timevalsub(&sc->stats.elapsedTime,
timevalsub(&sc->stats.elapsedTime, &sc->stats.startTime);
timevalsub(&elapsed, &sc->stats.lastTime);
timevalsub(&age, &beg->timestamp);
timevalsub(&diff, &alink->lastWrite);
timevalsub(&diff_time, &suspend_time);
void timevalsub(struct timeval *, const struct timeval *);
timevalsub(&kth->ktr_time, &prevtime);
static void timevalsub(struct timeval *, struct timeval *);