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Re: [RFC 06/12] mac80211: notify bridge when leaving mesh

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On Thu, 2013-05-02 at 19:33 -0700, Thomas Pedersen wrote:
> After turning carrier off, any parent bridge interface
> needs to be notified. Otherwise we would see a panic when
> attempting to transmit frames on a mesh interface which
> hadn't yet been put down.
> 
> Signed-off-by: Thomas Pedersen <thomas@xxxxxxxxxxx>
> ---
>  net/mac80211/mesh.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
> index eac9988..271ddc9 100644
> --- a/net/mac80211/mesh.c
> +++ b/net/mac80211/mesh.c
> @@ -993,6 +993,9 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
>  	struct beacon_data *bcn;
>  
>  	netif_carrier_off(sdata->dev);
> +	if (sdata->dev->priv_flags & IFF_BRIDGE_PORT)
> +		/* stop bridge transmissions */
> +		call_netdevice_notifiers(NETDEV_CHANGE, sdata->dev);

Err, this seems like a really bad hack? I don't really think drivers
should call that?

johannes

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