IDE hpt366 driver doesn't allow DMA for ATAPI devices and MWDMA2 on ATAPI device locks up pata_hpt366. Follow the suit. Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> --- drivers/ata/pata_hpt366.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: work/drivers/ata/pata_hpt366.c =================================================================== --- work.orig/drivers/ata/pata_hpt366.c +++ work/drivers/ata/pata_hpt366.c @@ -183,7 +183,9 @@ static unsigned long hpt366_filter(struc mask &= ~(0xF8 << ATA_SHIFT_UDMA); if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4)) mask &= ~(0xF0 << ATA_SHIFT_UDMA); - } + } else if (adev->class == ATA_DEV_ATAPI) + mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA); + return ata_bmdma_mode_filter(adev, mask); } -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
