ide: pass command to ide_map_sg()

* Set IDE_TFLAG_WRITE flag and ->rq also for ATA_CMD_PACKET
  commands.

* Pass command to ->dma_setup method and update all its
  implementations accordingly.

* Pass command instead of request to ide_build_sglist(),
  *_build_dmatable() and ide_map_sg().

While at it:

* Fix scc_dma_setup() documentation + use ATA_DMA_WR define.

* Rename sgiioc4_build_dma_table() to sgiioc4_build_dmatable(),
  change return value type to 'int' and drop unused 'ddir'
  argument.

* Do some minor cleanups in [tx4939]ide_dma_setup().

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index d93c80016326..cf6d9a9c8a27 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -216,11 +216,11 @@ static int ns87415_dma_end(ide_drive_t *drive)
         return (dma_stat & 7) != 4;
 }
 
-static int ns87415_dma_setup(ide_drive_t *drive)
+static int ns87415_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
         /* select DMA xfer */
         ns87415_prepare_drive(drive, 1);
-        if (!ide_dma_setup(drive))
+        if (ide_dma_setup(drive, cmd) == 0)
                 return 0;
         /* DMA failed: select PIO xfer */
         ns87415_prepare_drive(drive, 0);