MLD_FASTHZ
delay = (delay * MLD_FASTHZ) / hz;
callout_reset(&mldfast_callout, hz / MLD_FASTHZ, mld_fasttimo, NULL);
MLD_FASTHZ);
odelay = MLD_RANDOM_DELAY(MLD_V1_MAX_RI * MLD_FASTHZ);
callout_reset(&mldfast_callout, hz / MLD_FASTHZ, mld_fasttimo, NULL);
timer = (ntohs(mld->mld_maxdelay) * MLD_FASTHZ) / MLD_TIMER_SCALE;
timer = (maxdelay * MLD_FASTHZ) / MLD_TIMER_SCALE;
#define MLD_RESPONSE_BURST_INTERVAL (MLD_FASTHZ / 2) /* 500ms */