+ /* ms_mask can be used for other purposes in PNS and I/S,
+ * so must not apply M/S if any band uses either, even if
+ * ms_mask is set.
+ */
+ if (!cpe->ms_mask[w*16 + g] || cpe->is_mask[w*16 + g]
+ || cpe->ch[0].band_type[w*16 + g] == NOISE_BT
+ || cpe->ch[1].band_type[w*16 + g] == NOISE_BT) {