librenms-librenms/includes/caches/toner.inc.php

<?php

if (Auth::user()->hasGlobalRead()) {
    $data['count'] = array('query' => "SELECT COUNT(`toner_id`) FROM toner");
} else {
    $device_ids = Permissions::devicesForUser()->toArray() ?: [0];
    $perms_sql = "`toner`.`device_id` IN " .dbGenPlaceholders(count($device_ids));

    $data['count'] = array(
        'query'  => "SELECT COUNT(`toner_id`) FROM toner WHERE $perms_sql",
        'params' => $device_ids
    );
}