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Re: [RFC v3 7/7] mac80211: reuse channels for channel contexts

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On Tue, 2012-06-26 at 15:55 +0200, Michal Kazior wrote:


> > I don't think I understand this, wouldn't it need some per-vif requested
> > channel type to work correctly? I don't see any chantype values coming
> > from the sdata here, so I don't think this could work?
> >
> > If say vif1 needs ht40+ and vif2 ht20, the channel context will be set
> > to ht40+, but then if vif1 goes away and you don't know anything about
> > vif2 at all, then how can this work? The way I see it, your code here
> > doesn't really do anything, except recalculate that ht40+ is compatible
> > with ht40+, or something like that? I guess I'm a bit confused, it seems
> > to me that this cannot work even in theory unless you have per-vif data.
> 
> It seems I must've had a mind-derp. I was planning on using 
> sdata->vif.bss_conf.channel_type which should be ok, right?

Yeah, unless you were planning to not go through
ieee80211_set_channel_type() any more in the future?

johannes

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