linux-kernel - RE: [PATCH v14 net-next 1/1] hv_sock: introduce Hyper-V Sockets

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Date:	Tue, 5 Jul 2016 01:58:31 +0000
From:	Dexuan Cui <decui@...rosoft.com>
To:	"davem@...emloft.net" <davem@...emloft.net>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"apw@...onical.com" <apw@...onical.com>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	Cathy Avery <cavery@...hat.com>,
	KY Srinivasan <kys@...rosoft.com>
CC:	Haiyang Zhang <haiyangz@...rosoft.com>,
	"joe@...ches.com" <joe@...ches.com>,
	Rolf Neugebauer <rolf.neugebauer@...ker.com>
Subject: RE: [PATCH v14 net-next 1/1] hv_sock: introduce Hyper-V Sockets

> From: linux-kernel-owner@...r.kernel.org [mailto:linux-kernel-
> owner@...r.kernel.org] On Behalf Of Dexuan Cui
> Sent: Thursday, June 30, 2016 23:59
> diff --git a/include/linux/socket.h b/include/linux/socket.h
> index b5cc5a6..0b68b58 100644
> --- a/include/linux/socket.h
> +++ b/include/linux/socket.h
> @@ -202,8 +202,9 @@ struct ucred {
>  #define AF_VSOCK	40	/* vSockets			*/
>  #define AF_KCM		41	/* Kernel Connection Multiplexor*/
>  #define AF_QIPCRTR	42	/* Qualcomm IPC Router          */
> +#define AF_HYPERV	43	/* Hyper-V Sockets              */
> 
> -#define AF_MAX		43	/* For now.. */
> +#define AF_MAX		44	/* For now.. */

Hi David,
Not sure if you had a chance to review this version.
Now I have a question: may I split the include/linux/socket.h change
and ask you to pre-allocate the number for AF_HYPERV to allow
backporting of Hyper-V Sockets to distro kernels, and to make sure that
applications using the socket type will work with the backport as well
as the upstream kernel?

Thanks,
-- Dexuan