linux-kernel - Re: [PATCH v3 4/6] ALSA: xen-front: Implement handling of shared buffers

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Date:   Tue, 22 May 2018 08:25:28 +0300
From:   Oleksandr Andrushchenko <Oleksandr_Andrushchenko@...m.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Oleksandr Andrushchenko <andr2000@...il.com>,
        alsa-devel@...a-project.org, xen-devel@...ts.xenproject.org,
        boris.ostrovsky@...cle.com, konrad.wilk@...cle.com, perex@...ex.cz,
        Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/6] ALSA: xen-front: Implement handling of shared
 buffers

On 05/21/2018 11:26 PM, Takashi Iwai wrote:
> On Thu, 17 May 2018 08:26:16 +0200,
> Takashi Iwai wrote:
>> On Tue, 15 May 2018 08:02:08 +0200,
>> Oleksandr Andrushchenko wrote:
>>> On 05/15/2018 09:01 AM, Takashi Iwai wrote:
>>>> On Tue, 15 May 2018 07:46:38 +0200,
>>>> Oleksandr Andrushchenko wrote:
>>>>> On 05/14/2018 11:28 PM, Takashi Iwai wrote:
>>>>>> On Mon, 14 May 2018 08:27:40 +0200,
>>>>>> Oleksandr Andrushchenko wrote:
>>>>>>> --- /dev/null
>>>>>>> +++ b/sound/xen/xen_snd_front_shbuf.c
>>>>>>> @@ -0,0 +1,193 @@
>>>>>>> +// SPDX-License-Identifier: GPL-2.0 OR MIT
>>>>>>> +
>>>>>>> +/*
>>>>>>> + * Xen para-virtual sound device
>>>>>>> + *
>>>>>>> + * Copyright (C) 2016-2018 EPAM Systems Inc.
>>>>>>> + *
>>>>>>> + * Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@...m.com>
>>>>>>> + */
>>>>>>> +
>>>>>>> +#include <xen/xen.h>
>>>>>>> +#include <xen/xenbus.h>
>>>>>>> +
>>>>>>> +#include "xen_snd_front_shbuf.h"
>>>>>> Hm, with the local build test, I get the following error:
>>>>>>
>>>>>>      CC [M]  sound/xen/xen_snd_front_shbuf.o
>>>>>>      In file included from sound/xen/xen_snd_front_shbuf.c:11:0:
>>>>>>      ./include/xen/xen.h:18:8: error: unknown type name ‘bool’
>>>>>>       extern bool xen_pvh;
>>>>>>               ^~~~
>>>>>>       In file included from ./include/xen/interface/xen.h:30:0,
>>>>>>                        from ./include/xen/xen.h:29,
>>>>>>                        from sound/xen/xen_snd_front_shbuf.c:11:
>>>>>>      ./arch/x86/include/asm/xen/interface.h:92:21: error: unknown type name ‘uint64_t’
>>>>>>       DEFINE_GUEST_HANDLE(uint64_t);
>>>>>>                           ^
>>>>>> 			
>>>>>> Adding #include <linux/kernel.h> fixed the issue.
>>>>>>
>>>>>> Did you really test your patches with the latest Linus tree?
>>>>> My bad, it does build for ARM (which is my target), but also does
>>>>> need "#include <linux/kernel.h>" for x86 which I didn't build this time.
>>>>> Sorry about that.
>>>>>
>>>>> Do you want me to resend this single patch or you can make the change
>>>>> while applying?
>>>> Yes, it's fine.
>>> Thank you
>> FWIW, the patches are in topic/xen branch in sound.git tree, and I'll
>> keep boiling for a while to see if any issues are caught by 0day bot.
> ... and now the topic/xen branch got merged to for-next, targeted for
> 4.18.
>
> Thanks for your patient works!
>
>
> Takashi
Great news, thank you,
Oleksandr