diff --git a/include/linux/ide.h b/include/linux/ide.h
index 803ec30..53ecdba 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -625,7 +625,7 @@
 struct ide_port_ops {
 	void	(*init_dev)(ide_drive_t *);
 	void	(*set_pio_mode)(struct hwif_s *, ide_drive_t *);
-	void	(*set_dma_mode)(ide_drive_t *, const u8);
+	void	(*set_dma_mode)(struct hwif_s *, ide_drive_t *);
 	int	(*reset_poll)(ide_drive_t *);
 	void	(*pre_reset)(ide_drive_t *);
 	void	(*resetproc)(ide_drive_t *);