[ide] kill ide_raw_build_sglist()

ide_build_sglist() can be now used for REQ_DRIVE_TASKFILE requests.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-dma.c

@@ -208,6 +208,9 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 	ide_hwif_t *hwif = HWIF(drive);
 	struct scatterlist *sg = hwif->sg_table;
 
+	if ((rq->flags & REQ_DRIVE_TASKFILE) && rq->nr_sectors > 256)
+		BUG();
+
 	ide_map_sg(drive, rq);
 
 	if (rq_data_dir(rq) == READ)
@@ -220,37 +223,6 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 
 EXPORT_SYMBOL_GPL(ide_build_sglist);
 
-/**
- *	ide_raw_build_sglist	-	map IDE scatter gather for DMA
- *	@drive: the drive to build the DMA table for
- *	@rq: the request holding the sg list
- *
- *	Perform the PCI mapping magic necessary to access the source or
- *	target buffers of a taskfile request via PCI DMA. The lower layers 
- *	of the  kernel provide the necessary cache management so that we can
- *	operate in a portable fashion
- */
-
-int ide_raw_build_sglist(ide_drive_t *drive, struct request *rq)
-{
-	ide_hwif_t *hwif = HWIF(drive);
-	struct scatterlist *sg = hwif->sg_table;
-	ide_task_t *args = rq->special;
-
-	if (args->command_type == IDE_DRIVE_TASK_RAW_WRITE)
-		hwif->sg_dma_direction = PCI_DMA_TODEVICE;
-	else
-		hwif->sg_dma_direction = PCI_DMA_FROMDEVICE;
-
-	BUG_ON(rq->nr_sectors > 256);
-
-	ide_map_sg(drive, rq);
-
-	return pci_map_sg(hwif->pci_dev, sg, hwif->sg_nents, hwif->sg_dma_direction);
-}
-
-EXPORT_SYMBOL_GPL(ide_raw_build_sglist);
-
 /**
  *	ide_build_dmatable	-	build IDE DMA table
  *
@@ -272,10 +244,7 @@ int ide_build_dmatable (ide_drive_t *drive, struct request *rq)
 	int i;
 	struct scatterlist *sg;
 
-	if (HWGROUP(drive)->rq->flags & REQ_DRIVE_TASKFILE)
-		hwif->sg_nents = i = ide_raw_build_sglist(drive, rq);
-	else
-		hwif->sg_nents = i = ide_build_sglist(drive, rq);
+	hwif->sg_nents = i = ide_build_sglist(drive, rq);
 
 	if (!i)
 		return 0;

drivers/ide/pci/sgiioc4.c

@@ -501,10 +501,7 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
 	unsigned int count = 0, i = 1;
 	struct scatterlist *sg;
 
-	if (HWGROUP(drive)->rq->flags & REQ_DRIVE_TASKFILE)
-		hwif->sg_nents = i = ide_raw_build_sglist(drive, rq);
-	else
-		hwif->sg_nents = i = ide_build_sglist(drive, rq);
+	hwif->sg_nents = i = ide_build_sglist(drive, rq);
 
 	if (!i)
 		return 0;	/* sglist of length Zero */

drivers/ide/ppc/pmac.c

@@ -1582,11 +1582,8 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 	while (readl(&dma->status) & RUN)
 		udelay(1);
 
-	/* Build sglist */
-	if (HWGROUP(drive)->rq->flags & REQ_DRIVE_TASKFILE)
-		hwif->sg_nents = i = ide_raw_build_sglist(drive, rq);
-	else
-		hwif->sg_nents = i = ide_build_sglist(drive, rq);
+	hwif->sg_nents = i = ide_build_sglist(drive, rq);
+
 	if (!i)
 		return 0;
 

include/linux/ide.h

@@ -1495,7 +1495,6 @@ int __ide_dma_off(ide_drive_t *);
 
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
 extern int ide_build_sglist(ide_drive_t *, struct request *);
-extern int ide_raw_build_sglist(ide_drive_t *, struct request *);
 extern int ide_build_dmatable(ide_drive_t *, struct request *);
 extern void ide_destroy_dmatable(ide_drive_t *);
 extern ide_startstop_t ide_dma_intr(ide_drive_t *);