ata_ncq_prio_supported
EXPORT_SYMBOL_GPL(ata_ncq_prio_supported);
rc = ata_ncq_prio_supported(ap, sdev, &supported);
rc = ata_ncq_prio_supported(ddev->sata_dev.ap, sdev, &supported);
extern int ata_ncq_prio_supported(struct ata_port *ap, struct scsi_device *sdev,