Subject: Re: [PATCH] bridge: reset bridge mtu after deleting an interface

From: roopa <[email-masked]>
Date: Fri, 13 Mar 2015 19:12:52 -0700

On 3/13/15, 7:08 AM, Venkat Venkatsubra wrote:
> On adding an interface br_add_if() sets the MTU to the min of
> all the interfaces. Do the same thing on removing an interface too
> in br_del_if.
>
> Signed-off-by: Venkat Venkatsubra <[email-masked]>
> ---
>   net/bridge/br_if.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
> index b087d27..1849d96 100644
> --- a/net/bridge/br_if.c
> +++ b/net/bridge/br_if.c
> @@ -563,6 +563,8 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
>   	 */
>   	del_nbp(p);
>   
> +	dev_set_mtu(br->dev, br_min_mtu(br));
> +
>   	spin_lock_bh(&br->lock);
>   	changed_addr = br_stp_recalculate_bridge_id(br);
>   	spin_unlock_bh(&br->lock);
This looks good to me.

Acked-by: Roopa Prabhu <[email-masked]>