Seems nobody else is checking/testing this case as it keeps getting horked. If we have no BAR4 mapping on an SFF controller this is *NOT* an error, it just means it isn't doing BMDMA. Signed-off-by: Alan Cox <alan@xxxxxxxxxx> diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.23rc1-mm1/drivers/ata/libata-sff.c linux-2.6.23rc1-mm1/drivers/ata/libata-sff.c --- linux.vanilla-2.6.23rc1-mm1/drivers/ata/libata-sff.c 2007-07-26 15:01:52.899754968 +0100 +++ linux-2.6.23rc1-mm1/drivers/ata/libata-sff.c 2007-07-26 15:17:55.178466368 +0100 @@ -573,6 +573,10 @@ struct pci_dev *pdev = to_pci_dev(gdev); int i, rc; + /* No BAR4 allocation: No DMA */ + if (pci_resource_start(pdev, 4) == 0) + return 0; + /* TODO: If we get no DMA mask we should fall back to PIO */ rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); if (rc) - 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
