ide: add ->dma_clear method and remove ->dma_timeout one
All custom ->dma_timeout implementations call the generic one thus it is
possible to have only an optional method for resetting DMA engine instead:
* Add ->dma_clear method and convert hpt366, pdc202xx_old and sl82c105
host drivers to use it.
* Always use ide_dma_timeout() in ide_dma_timeout_retry() and remove
->dma_timeout method.
* Make ide_dma_timeout() static.
There should be no functional changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 3dbf80c..dc5d9bc 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -460,7 +460,7 @@
}
EXPORT_SYMBOL_GPL(ide_dma_lost_irq);
-void ide_dma_timeout(ide_drive_t *drive)
+static void ide_dma_timeout(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
@@ -473,7 +473,6 @@
hwif->dma_ops->dma_end(drive);
}
-EXPORT_SYMBOL_GPL(ide_dma_timeout);
/*
* un-busy the port etc, and clear any pending DMA status. we want to
@@ -483,6 +482,7 @@
ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
{
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_dma_ops *dma_ops = hwif->dma_ops;
struct request *rq;
ide_startstop_t ret = ide_stopped;
@@ -492,12 +492,14 @@
if (error < 0) {
printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
- (void)hwif->dma_ops->dma_end(drive);
+ (void)dma_ops->dma_end(drive);
ret = ide_error(drive, "dma timeout error",
hwif->tp_ops->read_status(hwif));
} else {
printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
- hwif->dma_ops->dma_timeout(drive);
+ if (dma_ops->dma_clear)
+ dma_ops->dma_clear(drive);
+ ide_dma_timeout(drive);
}
/*