ide: use ide_build_sglist() and ide_destroy_dmatable() in non-PCI host drivers

* Make ide_build_sglist() and ide_destroy_dmatable() available also when
  CONFIG_BLK_DEV_IDEDMA_PCI=n.

* Use ide_build_sglist() and ide_destroy_dmatable() in {ics,au1xxx-}ide.c
  and remove no longer needed {ics,au}ide_build_sglist().

There should be no functionality changes caused by this patch.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 19 deletions

diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 774b87e1b704..12cbb5d07f61 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -204,22 +204,6 @@ static void icside_maskproc(ide_drive_t *drive, int mask)
  * interfaces use the same IRQ, which should guarantee this.
  */
 
-static void icside_build_sglist(ide_drive_t *drive, struct request *rq)
-{
-        ide_hwif_t *hwif = drive->hwif;
-        struct scatterlist *sg = hwif->sg_table;
-
-        ide_map_sg(drive, rq);
-
-        if (rq_data_dir(rq) == READ)
-                hwif->sg_dma_direction = DMA_FROM_DEVICE;
-        else
-                hwif->sg_dma_direction = DMA_TO_DEVICE;
-
-        hwif->sg_nents = dma_map_sg(hwif->dev, sg, hwif->sg_nents,
-                                    hwif->sg_dma_direction);
-}
-
 /*
  * Configure the IOMD to give the appropriate timings for the transfer
  * mode being requested.  We take the advice of the ATA standards, and
@@ -298,8 +282,7 @@ static int icside_dma_end(ide_drive_t *drive)
         disable_dma(ec->dma);
 
         /* Teardown mappings after DMA has completed. */
-        dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->sg_nents,
-                     hwif->sg_dma_direction);
+        ide_destroy_dmatable(drive);
 
         return get_dma_residue(ec->dma) != 0;
 }
@@ -331,7 +314,7 @@ static int icside_dma_setup(ide_drive_t *drive)
          */
         BUG_ON(dma_channel_active(ec->dma));
 
-        icside_build_sglist(drive, rq);
+        hwif->sg_nents = ide_build_sglist(drive, rq);
 
         /*
          * Ensure that we have the right interrupt routed.