[PATCH] hostapd: Don't force HT Mixed Mode for non-GF STAs

Johannes Berg johannes
Wed Mar 2 00:44:52 PST 2011


On Wed, 2011-03-02 at 09:37 +0100, Helmut Schaa wrote:
> Currently hostapd will force HT Mixed Mode if at least one non-GF STA is
> associated. This will force _all_ HT transmissions to be protected.
> 
> 802.11n-2009 doesn't require HT Mixed Mode to be used in case of non-GF
> STAs but instead the HT information element contains a flag if non-GF
> STAs are present. All STAs are required to protect GF transmissions in
> that case. Hence, setting HT Mixed mode if non-GF STAs are present is
> superfluous.

It seems like this would still be relevant for the AP's TX?

johannes





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