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Re: [PATCH 5/8] wifi: mac80211: disallow drivers with HT wider than HE

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On Fri, 2024-01-12 at 15:10 +0200, Kalle Valo wrote:
> Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx> writes:
> 
> > +			/* currently no support for HE client where HT has 40 MHz but not HT */
> > +			if (iftd->he_cap.has_he &&
> > +			    iftd->types_mask & (BIT(NL80211_IFTYPE_STATION) |
> > +						BIT(NL80211_IFTYPE_P2P_CLIENT)) &&
> > +			    sband->ht_cap.ht_supported &&
> > +			    sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
> > +			    !(iftd->he_cap.he_cap_elem.phy_cap_info[0] & he_40_mhz_cap))
> > +				return -EINVAL;
> 
> Should there be a warning message so that this is noticed if it ever
> happens? I don't know.

Yeah I don't really know either. I've done that a lot in the past, but
these days I'm kind of thinking that people who develop their drivers
should have some debug story and be able to figure it out? You know
better perhaps ...

Though it'd kind of suck to indent this further with WARN_ON ;-)

johannes





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