ide: add drive->dma_mode field

Add dma_mode field to ide_drive_t matching dma_mode field used in
struct ata_device.

The validity of the field is restricted to ->dma_pio_mode method
only currently in IDE subsystem.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c
index cdae463f6b41..c2323869d92a 100644
--- a/drivers/ide/ide-xfer-mode.c
+++ b/drivers/ide/ide-xfer-mode.c
@@ -167,9 +167,11 @@ int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
         if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
                 if (ide_config_drive_speed(drive, mode))
                         return -1;
+                drive->dma_mode = mode;
                 port_ops->set_dma_mode(drive, mode);
                 return 0;
         } else {
+                drive->dma_mode = mode;
                 port_ops->set_dma_mode(drive, mode);
                 return ide_config_drive_speed(drive, mode);
         }