netdev - Re: [PATCH net 3/7] bridge: Change local fdb entries whenever mac address of bridge device changes

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Date:	Tue, 03 Dec 2013 21:33:11 +0900
From:	Toshiaki Makita <makita.toshiaki@....ntt.co.jp>
To:	vyasevic@...hat.com
Cc:	"David S . Miller" <davem@...emloft.net>,
	Stephen Hemminger <stephen@...workplumber.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH net 3/7] bridge: Change local fdb entries whenever mac
 address of bridge device changes

On Mon, 2013-12-02 at 10:43 -0500, Vlad Yasevich wrote:
> On 12/02/2013 01:40 AM, Toshiaki Makita wrote:
> > Vlan code may need fdb change when changing mac address of bridge device
> > even if it is caused by the mac address changing of a bridge port.
...
> > ---
> > It seems to be not difficult to change the code not to create an entry whose
> > dst == NULL at br_add_if().  It can be acheived by calling br_fdb_insert()
> > before br_stp_recalculate_bridge_id() (and actually br_device_event() changes
> > a fdb entry in such a way).
> > If it is desirable, I will do that change.
> 
> Yes, I think this is desirable.  An fdb where dst == NULL, is typically
> only created when the mac address of the bridge device itself is set by
> user.  When the bridge carries the mac of one of the ports, we don't
> need that dst entry.

OK, I will rework it.

Thanks,
Toshiaki Makita

> 
> -vlad



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