Messages in this thread | | | Subject | Re: [PATCH v3 2/3] ACPI / OSL: Allow PCI to be disabled | From | Sinan Kaya <> | Date | Tue, 11 Dec 2018 17:22:25 -0500 |
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On 12/11/2018 5:16 PM, Rafael J. Wysocki wrote: >> AFAIK, ACPI spec says that AML code running on non-existing op-regions to be >> discarded last time I checked. > I guess you mean "disregarded"? >
I have seen Linux complain about reads/writes to non-existing I2C opregions before as a read/write failure for every single AML transaction. I was under the impression that we didn't care.
> So the spec appears to expect the OS to silently ignore the failures > in those cases, so why should an error be returned? >
I can certainly return success for this case when CONFIG_PCI is not present.
>> I know Linux is noisy about these.
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