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Date:   Fri, 22 Feb 2019 20:49:04 +0800
From:   Hangbin Liu <>
To:     Nikolay Aleksandrov <>
Cc:     Linus L├╝ssing <>,,,,,,
        Sebastian Gottschall <>
Subject: Re: [Bridge] [PATCH net] net: bridge: remove ipv6 zero address check
 in mcast queries

On Fri, Feb 22, 2019 at 01:16:53PM +0200, Nikolay Aleksandrov wrote:
> > 
> > For consistency with other vendors and rfc, I would prefer to remove zero address election.
> > For compatibility with previous users, I'm also OK to revert it.
> > > Regards
> > Hangbin
> > 
> Hi,
> In this case I'd suggest the following course of action:
>  - For -net/-stable revert the change since backporting new options is a
>    no-go and we need to restore the bridge state
>  - After -net is merged in net-next, for net-next if you'd like add it
>    as an option and also exclude it from elections when the option is
>    enabled (for example something like multicast_nonzero_src_querier).
>    Just please use the boolopt api and don't add new fields/attr ids.
>    Obviously by default this option will be off to be backwards
>    compatible and avoid surprise mcast flood.
> Or just leave it reverted. :)

This makes sense to me. Thanks for your suggestions.


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