ata_xfer_mask2mode
dev->xfer_mode = ata_xfer_mask2mode(xfer_mask);
if (dev->xfer_mode == ata_xfer_mask2mode(ata_id_xfermask(dev->id)))
dev->pio_mode = ata_xfer_mask2mode(pio_mask);
dev->dma_mode = ata_xfer_mask2mode(dma_mask);
EXPORT_SYMBOL_GPL(ata_xfer_mask2mode);
extern u8 ata_xfer_mask2mode(unsigned int xfer_mask);