Subject: Re: [PATCH 04/11] bridge: Cache vlan in the cb for faster egress lookup.

From: Stephen Hemminger <[email-masked]>
Date: Tue, 18 Dec 2012 09:04:48 -0800

On Wed, 12 Dec 2012 15:01:10 -0500
Vlad Yasevich <[email-masked]> wrote:

> On input, cache the pointer to the bridge vlan info, so that
> on egress, we have can simply look at the port bitmap instead
> of traversing a vlan list.
> 
> Signed-off-by: Vlad Yasevich <[email-masked]>

This isn't going to be safe. Once packet is passed up, the cb[]
can get overwritten by other things.