Re: [RFC 2/2] mac80211: add VHT support for IBSS

[Johannes Berg <johannes@sipsolutions.net>]

On Tue, 2015-01-13 at 09:35 +0100, Janusz Dziedzic wrote:

> +++ b/net/mac80211/main.c
> @@ -549,6 +549,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
>  		wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN |
>  				   NL80211_FEATURE_AP_SCAN;
>  
> +	wiphy_ext_feature_set(wiphy, NL80211_FEATURE_VHT_IBSS);

Maybe we should leave this to the driver?

And it should certainly depend on actual VHT capability, I'd say? Seems
confusing if we ended up with a driver that doesn't have VHT but says it
has VHT_IBSS :)

> +++ b/net/mac80211/util.c
> @@ -2329,6 +2329,41 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
>  	return pos + sizeof(struct ieee80211_ht_operation);
>  }
>  
> +u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
> +				const struct cfg80211_chan_def *chandef)

For now that'll only be used by IBSS (perhaps mesh in the future?), but
maybe it should just be in ibss.c until it's used more?

johannes