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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-08-20 22:42:55 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-08-20 22:42:55 +0200 |
| commit | 1116fae5fdfa80c6744a9b5d75fb3ef687a69b19 (patch) | |
| tree | baac86f015f51f1f257219f154a86a08f8529385 | |
| parent | 8292e8c7e4c2b99f22120f677858487de43c484b (diff) | |
| download | op-kernel-dev-1116fae5fdfa80c6744a9b5d75fb3ef687a69b19.zip op-kernel-dev-1116fae5fdfa80c6744a9b5d75fb3ef687a69b19.tar.gz | |
ide: config_drive_for_dma() fixes
* Add DMA blacklist checking (->ide_dma_on check probably can go now).
* Add ->atapi_dma flag checking and remove no longer needed
ns87415_ide_dma_check() from ns87415 host driver.
* Remove now needless __ide_dma_check() wrapper and symbol export.
* Check drive->autodma instead of hwif->autodma (there should be no changes in
behavior as all users of config_drive_for_dma() set both ->autodma flags).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/ide-dma.c | 26 | ||||
| -rw-r--r-- | drivers/ide/pci/ns87415.c | 9 | ||||
| -rw-r--r-- | include/linux/ide.h | 1 |
3 files changed, 10 insertions, 26 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 5fe1d72..865a274 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -349,9 +349,17 @@ EXPORT_SYMBOL_GPL(ide_destroy_dmatable); static int config_drive_for_dma (ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; struct hd_driveid *id = drive->id; - if ((id->capability & 1) && drive->hwif->autodma) { + /* consult the list of known "bad" drives */ + if (__ide_dma_bad_drive(drive)) + return -1; + + if (drive->media != ide_disk && hwif->atapi_dma == 0) + return -1; + + if ((id->capability & 1) && drive->autodma) { /* * Enable DMA on any drive that has * UltraDMA (mode 0/1/2/3/4/5/6) enabled @@ -514,20 +522,6 @@ int __ide_dma_on (ide_drive_t *drive) EXPORT_SYMBOL(__ide_dma_on); /** - * __ide_dma_check - check DMA setup - * @drive: drive to check - * - * Don't use - due for extermination - */ - -int __ide_dma_check (ide_drive_t *drive) -{ - return config_drive_for_dma(drive); -} - -EXPORT_SYMBOL(__ide_dma_check); - -/** * ide_dma_setup - begin a DMA phase * @drive: target device * @@ -1021,7 +1015,7 @@ void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_p if (!hwif->dma_host_on) hwif->dma_host_on = &ide_dma_host_on; if (!hwif->ide_dma_check) - hwif->ide_dma_check = &__ide_dma_check; + hwif->ide_dma_check = &config_drive_for_dma; if (!hwif->dma_setup) hwif->dma_setup = &ide_dma_setup; if (!hwif->dma_exec_cmd) diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 09941f3..465c935 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -187,14 +187,6 @@ static int ns87415_ide_dma_setup(ide_drive_t *drive) return 1; } -static int ns87415_ide_dma_check (ide_drive_t *drive) -{ - if (drive->media != ide_disk) - return -1; - - return __ide_dma_check(drive); -} - static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) { struct pci_dev *dev = hwif->pci_dev; @@ -266,7 +258,6 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) outb(0x60, hwif->dma_status); hwif->dma_setup = &ns87415_ide_dma_setup; - hwif->ide_dma_check = &ns87415_ide_dma_check; hwif->ide_dma_end = &ns87415_ide_dma_end; if (!noautodma) diff --git a/include/linux/ide.h b/include/linux/ide.h index d71d012..7e15e08 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1312,7 +1312,6 @@ void ide_dma_host_off(ide_drive_t *); void ide_dma_off_quietly(ide_drive_t *); void ide_dma_host_on(ide_drive_t *); extern int __ide_dma_on(ide_drive_t *); -extern int __ide_dma_check(ide_drive_t *); extern int ide_dma_setup(ide_drive_t *); extern void ide_dma_start(ide_drive_t *); extern int __ide_dma_end(ide_drive_t *); |
