ATA_DITER_ENABLED_REVERSE
BUG_ON(mode != ATA_DITER_ENABLED && mode != ATA_DITER_ENABLED_REVERSE &&
case ATA_DITER_ENABLED_REVERSE:
case ATA_DITER_ENABLED_REVERSE:
if ((mode == ATA_DITER_ENABLED || mode == ATA_DITER_ENABLED_REVERSE) &&