linux-kernel - Re: [PATCH RFCv2 1/4] ACPI: NUMA: export pxm_to

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Message-ID: <173eaf59-0f48-c1d0-2317-840dcb932ba7@redhat.com>
Date:   Thu, 24 May 2018 11:04:43 +0200
From:   David Hildenbrand <david@...hat.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Linux Memory Management List <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH RFCv2 1/4] ACPI: NUMA: export pxm_to_node

On 24.05.2018 11:01, Rafael J. Wysocki wrote:
> On Thu, May 24, 2018 at 10:54 AM, David Hildenbrand <david@...hat.com> wrote:
>> On 24.05.2018 10:47, Rafael J. Wysocki wrote:
>>> On Thu, May 24, 2018 at 10:33 AM, David Hildenbrand <david@...hat.com> wrote:
>>>> On 24.05.2018 10:12, Rafael J. Wysocki wrote:
>>>>> On Wed, May 23, 2018 at 8:24 PM, David Hildenbrand <david@...hat.com> wrote:
>>>>>> Will be needed by paravirtualized memory devices.
>>>>>
>>>>> That's a little information.
>>>>>
>>>>> It would be good to see the entire series at least.
>>>>
>>>> It's part of this series (guess you only received the cover letter and
>>>> this patch). Here a link to the patch using it:
>>>>
>>>> https://lkml.org/lkml/2018/5/23/803
>>>
>>> OK, thanks!
>>>
>>> It looks like you have a reason to use it in there, but please note
>>> that CONFIG_ACPI_NUMA depends on CONFIG_NUMA, so you don't need to use
>>> the latter directly in the #ifdef.  Also wouldn't IS_ENABLED() work
>>> there?
>>
>> Thanks for the tip on CONFIG_ACPI_NUMA. Wouldn't IS_ENABLED() require to
>> have a dummy implementation of pxm_to_node() in case drivers/acpi/numa.c
>> is not compiled?
> 
> Yes, it would.
> 
> But since you want export it, you can very well add one, can't you?
> I'd even say that it would be prudent to do so.
> 

Sure, can do that :)

-- 

Thanks,

David / dhildenb