Re: [PATCH v2 3/3] mac80211: move to the home channel for disassociation when roaming

["Luis R. Rodriguez" <lrodriguez@atheros.com>]

On Mon, Oct 04, 2010 at 06:15:52AM -0700, Johannes Berg wrote:
> On Fri, 2010-10-01 at 16:33 -0400, Luis R. Rodriguez wrote:
> 
> > @@ -2203,6 +2204,14 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
> >  			return -EALREADY;
> >  		}
> >  
> > +		/*
> > +		 * right before this was authentication, that was on
> > +		 * the same the wk->chan so we need to ensure we temporarily
> > +		 * go back to the operating channel to send the disassocation.
> > +		 */
> > +		local->tmp_channel = NULL;
> > +		ieee80211_hw_config(local, 0);
> > +
> 
> Yikes, no, you can't do this. You don't know what has been merged with
> the authentication work item, etc.

What do you mean? Auth/Assoc will be handled separately and the
target channel will also be handled for each work item run, what
issues can arise from sending us back to the home channel towards
the end of this call here?

  Luis