netdev - Re: [PATCH v2 net-next 13/13] ipv6: route: per route IP tunnel metadata via lightweight tunnel

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Message-ID: <20150819122034.5d904d8b@griffin>
Date:	Wed, 19 Aug 2015 12:20:34 +0200
From:	Jiri Benc <jbenc@...hat.com>
To:	YOSHIFUJI Hideaki <hideaki.yoshifuji@...aclelinux.com>
Cc:	netdev@...r.kernel.org, Thomas Graf <tgraf@...g.ch>
Subject: Re: [PATCH v2 net-next 13/13] ipv6: route: per route IP tunnel
 metadata via lightweight tunnel

On Wed, 19 Aug 2015 19:17:21 +0900, YOSHIFUJI Hideaki wrote:
> Jiri Benc wrote:
> > Allow specification of per route IP tunnel instructions also for IPv6.
> > This complements commit 3093fbe7ff4b ("route: Per route IP tunnel metadata
> > via lightweight tunnel").
> > 
> > Signed-off-by: Jiri Benc <jbenc@...hat.com>
> > ---
> >  include/uapi/linux/lwtunnel.h |  16 +++++++
> >  net/ipv4/ip_tunnel_core.c     | 102 ++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 118 insertions(+)
> > 
> > diff --git a/include/uapi/linux/lwtunnel.h b/include/uapi/linux/lwtunnel.h
> > index aa84ca396bcb..32a149571417 100644
> > --- a/include/uapi/linux/lwtunnel.h
> > +++ b/include/uapi/linux/lwtunnel.h
> > @@ -7,6 +7,7 @@ enum lwtunnel_encap_types {
> >  	LWTUNNEL_ENCAP_NONE,
> >  	LWTUNNEL_ENCAP_MPLS,
> >  	LWTUNNEL_ENCAP_IP,
> > +	LWTUNNEL_ENCAP_IP6,
> >  	LWTUNNEL_ENCAP_ILA,
> >  	__LWTUNNEL_ENCAP_MAX,
> >  };
> 
> Please do not add new one in the middle of enums.

You're right generally. But this one should be okay and I did this
deliberately: the patch adding LWTUNNEL_ENCAP_ILA was merged two days
ago, is in net-next only, is not used by anything in user space yet.
And I think it's better to have LWTUNNEL_ENCAP_IP and
LWTUNNEL_ENCAP_IP6 without anything in between.

Thanks,

 Jiri

-- 
Jiri Benc
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