rs_get_adjacent_rate
high_low = rs_get_adjacent_rate(priv, rate, rate_mask,
high_low = rs_get_adjacent_rate(priv, index, rate_scale_index_msk,
high_low = rs_get_adjacent_rate(lq_sta->drv, scale_index, rate_mask,
high_low = rs_get_adjacent_rate(mvm, rate->index, rate_mask,
high_low = rs_get_adjacent_rate(mvm, rate_idx, rate_mask,
high_low = rs_get_adjacent_rate(mvm, index, rate_mask, rate->type);