[PATCH v2] hostap: set ht_capab from wiphy when in P2P GO mode

Arik Nemtsov arik at wizery.com
Wed Oct 5 05:57:16 EDT 2011


ping?

I think we even talked a bit about this one.

Arik

On Tue, Aug 9, 2011 at 08:08, Arik Nemtsov <arik at wizery.com> wrote:
> Set the HT capabilities of a P2P GO according to the wiphy supported
> ones. Mask-in a white-list of HT capabilities that won't cause problems
> for non-supporting stations.
>
> Signed-off-by: Arik Nemtsov <arik at wizery.com>
> ---
>  wpa_supplicant/ap.c |   19 ++++++++++++++++---
>  1 files changed, 16 insertions(+), 3 deletions(-)
>
> diff --git a/wpa_supplicant/ap.c b/wpa_supplicant/ap.c
> index 9eb2ba6..3a20640 100644
> --- a/wpa_supplicant/ap.c
> +++ b/wpa_supplicant/ap.c
> @@ -87,9 +87,10 @@ static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
>
>  #ifdef CONFIG_IEEE80211N
>        /*
> -        * Enable HT20 if the driver supports it, by setting conf->ieee80211n.
> +        * Enable HT20 if the driver supports it, by setting conf->ieee80211n
> +        * and a mask of allowed capabilities within conf->ht_capab.
>         * Using default config settings for: conf->ht_op_mode_fixed,
> -        * conf->ht_capab, conf->secondary_channel, conf->require_ht
> +        * conf->secondary_channel, conf->require_ht
>         */
>        modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
>        if (modes) {
> @@ -101,8 +102,20 @@ static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
>                                break;
>                        }
>                }
> -               if (mode && mode->ht_capab)
> +               if (mode && mode->ht_capab) {
>                        conf->ieee80211n = 1;
> +
> +                       /*
> +                        * white-list capabilities that won't cause issues
> +                        * to connecting stations.
> +                        */
> +                       conf->ht_capab = mode->ht_capab &
> +                                        (HT_CAP_INFO_GREEN_FIELD |
> +                                        HT_CAP_INFO_SHORT_GI20MHZ |
> +                                        HT_CAP_INFO_SHORT_GI40MHZ |
> +                                        HT_CAP_INFO_RX_STBC_MASK |
> +                                        HT_CAP_INFO_MAX_AMSDU_SIZE);
> +               }
>                ieee80211_sta_free_hw_features(modes, num_modes);
>                modes = NULL;
>        }
> --
> 1.7.4.1
>
>


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