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

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Message-ID: <847efda8-2b8e-fe71-454e-677566b7a825@epam.com>
Date:   Thu, 17 May 2018 09:33:04 +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 05/17/2018 09:26 AM, 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.
Thank you, hope everything goes well
>
> Takashi
Thank you,
Oleksandr