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Re: [PATCH 3/3] mac80211: mesh: fixed HT ies in beacon template

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On Mon, 2016-07-18 at 09:38 -0400, Bob Copeland wrote:
> On Wed, Jul 13, 2016 at 02:45:40PM +0300, Yaniv Machani wrote:
> > The HT capab info field inside the HT capab IE of the mesh beacon
> > is incorrect (in the case of 20MHz channel width).
> > To fix this driver will check configuration from cfg and
> > will build it accordingly.
> 
> > +    /* determine capability flags */
> > +	cap = sband->ht_cap.cap;
> > +
> > +    /* if channel width is 20MHz - configure HT capab
> > accordingly*/
> > +	if (sdata->vif.bss_conf.chandef.width ==
> > NL80211_CHAN_WIDTH_20) {
> > +		cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
> > +		cap &= ~IEEE80211_HT_CAP_DSSSCCK40;
> > +	}
> 
> Is it required that HT capability match the HT operation in this
> case?
> 

Is there ever a case that HT *capability* should be restricted
artificially like that? I can't remember any cases - we do something
like that to work around broken APs in some cases, but here?

johannes
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