netdev - Re: ipv6: Add support for RTA

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Message-ID: <20110407212552.GA11115@Chamillionaire.breakpoint.cc>
Date:	Thu, 7 Apr 2011 23:25:52 +0200
From:	Florian Westphal <fw@...len.de>
To:	David Miller <davem@...emloft.net>
Cc:	dwalter@...racuda.com, netdev@...r.kernel.org
Subject: Re: ipv6: Add support for RTA_PREFSRC

David Miller <davem@...emloft.net> wrote:
> From: Daniel Walter <dwalter@...racuda.com>
> Date: Mon, 4 Apr 2011 09:56:44 +0200
> > This reduces the RTA_PREFSRC support to netlink only, unless
> > we break the struct.
> 
[..]
> Since you do the prefsrc extraction in at least two places, make a
> helper function that does the whole "if prefsrc.plen use prefsrc, else
> use ipv6_dev_get_saddr()"
> 
> This would be akin to ipv4's FIB_RES_PREFSRC

OK, I'll bite.

Whats wrong with using ipv6 addrlabels to pick the desired address,
and, if there is a problem, why is it not fixable?

Just wondering...
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