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ide: remove clearing bmdma status from cdrom_decode_status() (rev #4)

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patch 2/2:
  Remove clearing bmdma status from cdrom_decode_status() since ATA devices
  might need it as well.

  (http://lkml.org/lkml/2006/12/4/201 and http://lkml.org/lkml/2006/11/15/94)

Signed-off-by: Albert Lee <[email protected]>
Cc: Sergei Shtylyov <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: "Adam W. Hawks" <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
This commit is contained in:
Albert Lee 2007-02-17 02:40:22 +01:00 • committed by Bartlomiej Zolnierkiewicz
commit 6e6cd4c438
3 changed files with 0 additions and 12 deletions
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7
drivers/ide/ide-cd.c
View file

@ -687,15 +687,8 @@ static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 sta
static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
{
struct request *rq = HWGROUP(drive)->rq;
ide_hwif_t *hwif = HWIF(drive);
int stat, err, sense_key;
/* We may have bogus DMA interrupts in PIO state here */
if (HWIF(drive)->dma_status && hwif->atapi_irq_bogon) {
stat = hwif->INB(hwif->dma_status);
/* Should we force the bit as well ? */
hwif->OUTB(stat, hwif->dma_status);
}
/* Check for errors. */
stat = HWIF(drive)->INB(IDE_STATUS_REG);
if (stat_ret)

4
drivers/ide/pci/piix.c
View file

@ -501,10 +501,6 @@ static void __devinit init_hwif_piix(ide_hwif_t *hwif)
/* This is a painful system best to let it self tune for now */
return;
}
/* ESB2 appears to generate spurious DMA interrupts in PIO mode
when in native mode */
if (hwif->pci_dev->device == PCI_DEVICE_ID_INTEL_ESB2_18)
hwif->atapi_irq_bogon = 1;
hwif->autodma = 0;
hwif->tuneproc = &piix_tune_drive;