netdev - Re: [PATCH] ipv6 addrconf: Ignore requests to set NODAD flag when changing addresses

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Message-ID: <20080605201410.GM20815@postel.suug.ch>
Date:	Thu, 5 Jun 2008 22:14:10 +0200
From:	Thomas Graf <tgraf@...g.ch>
To:	"YOSHIFUJI Hideaki / ?$B5HF#1QL@" <yoshfuji@...ux-ipv6.org>
Cc:	netdev@...r.kernel.org, usagi-core@...linux-ipv6.org,
	nakam@...agoma.org, takamiya@...ntts.co.jp
Subject: Re: [PATCH] ipv6 addrconf: Ignore requests to set NODAD flag when changing addresses

* YOSHIFUJI Hideaki / ?$B5HF#1QL@ <yoshfuji@...ux-ipv6.org> 2008-06-05 23:32
> In article <20080605090447.GL20815@...tel.suug.ch> (at Thu, 5 Jun 2008 11:04:47 +0200), Thomas Graf <tgraf@...g.ch> says:
> 
> > * YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org> 2008-06-05 11:53
> > > And well, it does not take effect so far, but 
> > > DAD after link failure logic is planned in long term.
> > > So current code is okay to me.
> > 
> > Alright, that makes sense if that code ever is written.
> > 
> > I'm not sure I understand your new patch though, why do you want to
> > disable setting the nodad flag for new addresses nowW?
> 
> If we should really need to avoid the confusion, we have an option
> to disallow modification of NODAD flag so far with the patch I've posted.
> But anyway, I'm going to leave it as-is if you are okay.

Your patch would have disabled the ability to even add new addresses
with the NODAD flag set, that's what confused me. I'm fine with
leaving everything as-is since you explained that DAD will be done
after link failures in the future.
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