Re: [PATCH v13 7/9] ACPI: Translate the I/O range of non-MMIO devices before scanning

From: Andy Shevchenko
Date: Fri Feb 16 2018 - 09:42:45 EST


On Thu, Feb 15, 2018 at 7:07 PM, John Garry <john.garry@xxxxxxxxxx> wrote:
> On 14/02/2018 16:16, Andy Shevchenko wrote:

>>>>> >>> + list_for_each_entry(rentry, &resource_list, node)
>>>>> >>> + resources[count++] = *rentry->res;
>>>>
>>>> >> It has similarities with acpi_create_platform_device().
>>>> >> I guess we can utilize existing code.
>>>
>>> > For sure, this particular segment is effectively same as part of
>>> > acpi_create_platform_device():
>>
>> Not the same, acpi_create_platform_device() does a bit more than
>> copying the resources. If it indeed makes no hurt...
>>
>>> > list_for_each_entry(rentry, &resource_list, node)
>>> > acpi_platform_fill_resource(adev, rentry->res,
>>> > &resources[count++]);
>>> > So is your idea to refactor this common segment into a helper function?
>>
>> ...I would go with helper.
>>
>
> Hi Andy,
>
> Since the plan now is that this code is no longer going to be added to
> drivers/acpi, but instead pushed to the LLDD, I am pondering whether we
> should still factor out of this common code. Opinion?

I would still go with a common helper. Though, as first step, we can
make it lazy, i.e. put a comment in your code, like a todo notice (w/o
TODO word :-) ) to consider a common helper.

--
With Best Regards,
Andy Shevchenko