On Tue, Jul 29, 2014 at 2:10 PM, Rafael J. Wysocki <r...@rjwysocki.net> wrote:
> On Tuesday, July 29, 2014 11:13:55 AM Vinson Lee wrote:
>> On Tue, Jul 29, 2014 at 2:53 AM, William Dauchy <wdau...@gmail.com> wrote:
>> > Hi Vinson,
>> >
>> > On Mon, Jul 28, 2014 at 9:11 PM, Vinson Lee <v...@twopensource.com> wrote:
>> >> The warning first happens with 3.14-rc1. The warning does not occur with 
>> >> 3.13.0.
>> >
>> > Hitting the same issue here with a similar trace on 3.14.x. Did you
>> > start bisecting?
>> >
>> > Regards,
>> > --
>> > William
>>
>>
>> I bisected the warning that I'm seeing to this commit.
>>
>> commit 202317a573b20d77a9abb7c16a3fd5b40cef3d9d
>> Author: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
>> Date:   Fri Nov 22 21:54:37 2013 +0100
>>
>>     ACPI / scan: Add acpi_device objects for all device nodes in the 
>> namespace
>
> Interesting.
>
> Does the appended patch make any difference?
>
> Rafael
>
> ---
>  drivers/pnp/pnpacpi/core.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> Index: linux-pm/drivers/pnp/pnpacpi/core.c
> ===================================================================
> --- linux-pm.orig/drivers/pnp/pnpacpi/core.c
> +++ linux-pm/drivers/pnp/pnpacpi/core.c
> @@ -319,8 +319,7 @@ static int __init acpi_pnp_match(struct
>         struct pnp_dev *pnp = _pnp;
>
>         /* true means it matched */
> -       return !acpi->physical_node_count
> -           && compare_pnp_id(pnp->id, acpi_device_hid(acpi));
> +       return pnp->data == acpi;
>  }
>
>  static struct acpi_device * __init acpi_pnp_find_companion(struct device 
> *dev)
>
> --
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Yes, with the patch on top of 3.16-rc7 I do not see the warning.
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