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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 12:46:46 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 12:46:46 +0100
commit2298169418f43ba5e0919762a4bab95a1227872a (patch)
tree67cf3133c7bae747ad957c68a650534105a7d8e7 /drivers/ide/ide-io.c
parent130e886708d6e11f3d54e5d27c266578de56f343 (diff)
downloadlinux-2298169418f43ba5e0919762a4bab95a1227872a.tar.gz
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>
Diffstat (limited to 'drivers/ide/ide-io.c')
-rw-r--r--drivers/ide/ide-io.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index f59c709052d2..47404f5526f1 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -228,11 +228,11 @@ static ide_startstop_t do_special (ide_drive_t *drive)
 	return ide_stopped;
 }
 
-void ide_map_sg(ide_drive_t *drive, struct request *rq)
+void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	struct ide_cmd *cmd = &hwif->cmd;
 	struct scatterlist *sg = hwif->sg_table;
+	struct request *rq = cmd->rq;
 
 	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
 		sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE);
@@ -273,7 +273,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
 	if (cmd) {
 		if (cmd->protocol == ATA_PROT_PIO) {
 			ide_init_sg_cmd(cmd, rq->nr_sectors);
-			ide_map_sg(drive, rq);
+			ide_map_sg(drive, cmd);
 		}
 
 		return do_rw_taskfile(drive, cmd);