netdev - Re: [PATCH] gre: copy ToS/DiffServ bits to outer IP header

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Date:	Wed, 01 Jul 2009 12:28:27 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Andreas Jaggi <aj@...n.ch>
CC:	netdev@...r.kernel.org, kuznet@....inr.ac.ru, davem@...emloft.net,
	linux-kernel@...r.kernel.org, shemminger@...l.org
Subject: Re: [PATCH] gre: copy ToS/DiffServ bits to outer IP header

Andreas Jaggi wrote:
> Now using the rtnl_link interface.

Your patches are seriously whitespace-damaged. Please make sure
to send them properly (test by sending to yourself first).

> diff -urN vanilla-linux-2.6.29.4/include/linux/if_tunnel.h 
> dev-gre/include/linux/if_tunnel.h
> --- vanilla-linux-2.6.29.4/include/linux/if_tunnel.h    2009-05-19 
> 01:52:34.000000000 +0200
> +++ dev-gre/include/linux/if_tunnel.h    2009-06-30 08:22:52.000000000 
> +0200
> @@ -34,6 +34,7 @@
>     __be32            i_key;
>     __be32            o_key;
>     struct iphdr        iph;
> +    __u8            copy_tos;

You can't change this structure, this will break compatibility.

> };
> 
> /* SIT-mode i_flags */
> @@ -63,6 +64,7 @@
>     IFLA_GRE_REMOTE,
>     IFLA_GRE_TTL,
>     IFLA_GRE_TOS,
> +    IFLA_GRE_COPY_TOS,
>     IFLA_GRE_PMTUDISC,
>     __IFLA_GRE_MAX,

You can't add new attributes in the middle, they need to be added at
the end.
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