libata: add private driver field to struct ata_device
This brings struct ata_device in-line with struct ata_{port,host}.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/include/linux/libata.h b/include/linux/libata.h
index ba07e84..a5b3dc7 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -595,6 +595,7 @@
unsigned int horkage; /* List of broken features */
unsigned long flags; /* ATA_DFLAG_xxx */
struct scsi_device *sdev; /* attached SCSI device */
+ void *private_data;
#ifdef CONFIG_ATA_ACPI
acpi_handle acpi_handle;
union acpi_object *gtf_cache;