MHUV2_STAT_BITS
ch_wn = i * MHUV2_STAT_BITS + __builtin_ctz(stat);
channel += MHUV2_STAT_BITS * windows;
channel += MHUV2_STAT_BITS * (ch_wn - offset);
for (i = 0; i < MHUV2_STAT_BITS; i++) {
i += IS_PROTOCOL_DOORBELL(priv) ? MHUV2_STAT_BITS : 1;
if (doorbell >= MHUV2_STAT_BITS)
return &chans[channel + MHUV2_STAT_BITS * offset + doorbell];
channel += MHUV2_STAT_BITS * windows;
channels += MHUV2_STAT_BITS * windows;
for (k = 0; k < MHUV2_STAT_BITS; k++) {