IS_SUPPORTED_ATTR
!IS_SUPPORTED_ATTR(df->governor->attrs, POLLING_INTERVAL))
!IS_SUPPORTED_ATTR(df->governor->attrs, POLLING_INTERVAL))
!IS_SUPPORTED_ATTR(df->governor->attrs, TIMER))
!IS_SUPPORTED_ATTR(df->governor->attrs, TIMER))
IS_SUPPORTED_ATTR(df->governor->attrs, POLLING_INTERVAL))
IS_SUPPORTED_ATTR(df->governor->attrs, TIMER))
if (IS_SUPPORTED_ATTR(devfreq->governor->attrs, POLLING_INTERVAL))