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

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Message-ID: <19a2c003-6730-265a-29aa-1eedd37147b9@epam.com>
Date:   Tue, 15 May 2018 09:02:08 +0300
From:   Oleksandr Andrushchenko <Oleksandr_Andrushchenko@...m.com>
To:     Takashi Iwai <tiwai@...e.de>,
        Oleksandr Andrushchenko <andr2000@...il.com>
Cc:     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 05/15/2018 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
>
> thanks,
>
> Takashi