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SubjectRe: [git pull request] ACPI and driver patches for 2.6.33.merge
Ingo Molnar wrote:
> * Shaohua Li <shaohua.li@intel.com> wrote:
>
>> On Fri, Dec 18, 2009 at 09:28:50AM +0800, Yinghai Lu wrote:
>>> On Wed, Dec 16, 2009 at 12:06 PM, Len Brown <lenb@kernel.org> wrote:
>>>> Hi Linus,
>>>>
>>>> please pull from:
>>>>
>>>> git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git release
>>>>
>>> ;..
>>>> Shaohua Li (3):
>>>> ? ? ?ACPI: Add a generic API for _OSC -v2
>>>> ? ? ?ACPI: cleanup pci_root _OSC code.
>>>> ? ? ?ACPI: Add platform-wide _OSC support.
>>> it seems these three patches broke the _OSC on my intel new systems.
>>>
>>> revert them fix the problem with AER and pciehp and etc
>> can you give more details? I just cleaned up the _OSC code for AER and
>> pciehp, no function changes.
>
> Famous last words ;-)
>
> Yinghai, i suspect Shaohua needs the kind of info you'd need if you tried to
> fix it: acpidump, before/after debug boot log, a description of what goes bad,
> etc.

the so called clean up, change the ret length checking.

- if (!output.length)
- return AE_NULL_OBJECT;
-

+ /* return buffer should have the same length as cap buffer */
+ if (context->ret.length != context->cap.length)
+ return AE_NULL_OBJECT;

YH


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