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Message-ID: <20150107225252.GA21149@casper.infradead.org>
Date:	Wed, 7 Jan 2015 22:52:52 +0000
From:	Thomas Graf <tgraf@...g.ch>
To:	Jesse Gross <jesse@...ira.com>
Cc:	David Miller <davem@...emloft.net>,
	Stephen Hemminger <stephen@...workplumber.org>,
	Pravin Shelar <pshelar@...ira.com>,
	netdev <netdev@...r.kernel.org>,
	"dev@...nvswitch.org" <dev@...nvswitch.org>
Subject: Re: [PATCH 3/6] vxlan: Only bind to sockets with correct extensions
 enabled

On 01/07/15 at 02:45pm, Jesse Gross wrote:
> On Tue, Jan 6, 2015 at 6:05 PM, Thomas Graf <tgraf@...g.ch> wrote:
> > A VXLAN net_device looking for an appropriate socket may only
> > consider a socket which has the exact set of extensions enabled.
> > If none can be found, a new socket must be created.
> 
> Maybe it's just the phrasing of the commit message but won't the new
> socket that needs to be created immediately fail? I think this is
> really just checking that you don't try to instantiate two different
> sets of extensions on the same UDP port - it's not like this is going
> to somehow create a new socket and they will be able to coexist.

Your interpretation is correct and the phrasing is poor. It prevents
a non-GBP socket from being used for a GBP socket. I will rework the
commit message.
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