netdev - Re: [PATCH net-next] ipv6: do not merge differe type and protocol routes

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Message-ID: <c5a71b96-30aa-4543-2d8e-196a37693254@kernel.org>
Date: Thu, 14 Sep 2023 21:08:18 -0600
From: David Ahern <dsahern@...nel.org>
To: Hangbin Liu <liuhangbin@...il.com>,
 Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc: netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Ido Schimmel <idosch@...sch.org>,
 Thomas Haller <thaller@...hat.com>
Subject: Re: [PATCH net-next] ipv6: do not merge differe type and protocol
 routes

On 9/14/23 8:23 PM, Hangbin Liu wrote:
> On Fri, Sep 01, 2023 at 11:36:51AM +0200, Nicolas Dichtel wrote:
>>> I do agree now that protocol is informative (passthrough from the kernel
>>> perspective) so not really part of the route. That should be dropped
> 
> I'm not sure. Is there any user space route daemon will use this info? e.g. some
> BGP route daemon?

It is passthrough information for userspace to track who installed the
route. It is not part of the route itself, but metadata passed in and
returned.