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Re: [Xen-devel] [PATCH 2/3] bridge: trigger a bridge calculation upon port changes



On Wed, Mar 12, 2014 at 8:15 PM, Luis R. Rodriguez
<mcgrof@xxxxxxxxxxxxxxxx> wrote:
>                         spin_lock_bh(&p->br->lock);
>                         err = br_setport(p, tb);
> +                       changed = br_stp_recalculate_bridge_id(p->br);

Looks like you only want to check if the mac addr gets changed here,
but br_stp_recalculate_bridge_id() does more than just checking it,
are you sure the side-effects are all what you want here?

>                         spin_unlock_bh(&p->br->lock);
> +                       if (changed)
> +                               call_netdevice_notifiers(NETDEV_CHANGEADDR,
> +                                                        p->br->dev);
> +                       netdev_update_features(p->br->dev);

I think this is supposed to be in netdev event handler of br->dev
instead of here.

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