That's funny,
I thought we already ignored errors from _CRS on link devices.
perhaps the errors we ignore are slightly different --
we ignore an IRQ0, but here the return value isn't
formatted correctly -- we should probably follow the same path...
-Len
On Monday 10 December 2007 03:15, Zhao Yakui wrote:
> Hi, All
> The following error message can be found in the dmesg of bug8896.
> ACPI Error (uteval-0269): Return object type is incorrect
> [\_SB_.PCI0.ALKD._CRS] (Node da4b49f0), AE_TYPE
> ACPI Error (uteval-0275): Type returned from _CRS was incorrect:
> Integer, expected Btypes: 4 [20060707]
> ACPI Exception (pci_link-0278): AE_TYPE, Evaluating _CRS [20060707]
> And the above error message is related to the following BIOS Bug.
> Method (_CRS, 0, NotSerialized)
> {
> Return (0x00)
> }
>
> Can we ignore the error about the _CRS method of LINK device and select
> IRQ from the possible IRQ list returned by _PRS method?
>
> Thanks.
>
>
>
> Subject: ACPI : Ignore the error about the _CRS of LINK device
> >From : Zhao Yakui <yakui.zhao@xxxxxxxxx>
>
> Ignore the error about the _CRS method of LINK device and select
> IRQ from possible IRQ list returned by _PRS method.
>
> http://bugzilla.kernel.org/show_bug.cgi?id=8896
>
> Signed-off-by: Zhao Yakui <yakui.zhao@xxxxxxxxx>
> ---
> drivers/acpi/pci_link.c | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
> Index: linux-2.6.24-rc4/drivers/acpi/pci_link.c
> ===================================================================
> --- linux-2.6.24-rc4.orig/drivers/acpi/pci_link.c
> +++ linux-2.6.24-rc4/drivers/acpi/pci_link.c
> @@ -385,9 +385,16 @@ static int acpi_pci_link_set(struct acpi
>
> /* Query _CRS, set link->irq.active */
> result = acpi_pci_link_get_current(link);
> - if (result) {
> - goto end;
> - }
> + if (result == ENODEV) {
> + /*
> + * Ignore the error about the _CRS method of Link device and
> + * select IRQ from the Possible IRQ list
> + * returned by _PRS method.
> + */
> + printk(KERN_WARNING "Ignore error LINK CRS method.\n");
> + link->irq.active = irq;
> + result = 0;
> + }
>
> /*
> * Is current setting not what we set?
>
-
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