On Fri, 2009-02-27 at 09:49 +0530, Sujith wrote:
> Currently, the driver is unconditionally notified of beacon
> interval. This is a problem in AP mode, because the driver has
> to know that the beacon interval has actualy changed to recalculate
> TBTT and reset the HW TSF. Fix this to make mac80211 notify the driver
> only when the beacon interval has been reconfigured to a new value.
>
> Signed-off-by: Sujith <Sujith.Manoharan@xxxxxxxxxxx>
Acked-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> ---
>
> ( CC the list properly this time. )
>
> net/mac80211/cfg.c | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
> index c43129e..58693e5 100644
> --- a/net/mac80211/cfg.c
> +++ b/net/mac80211/cfg.c
> @@ -451,7 +451,8 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
> * This is a kludge. beacon interval should really be part
> * of the beacon information.
> */
> - if (params->interval) {
> + if (params->interval && (sdata->local->hw.conf.beacon_int !=
> + params->interval)) {
> sdata->local->hw.conf.beacon_int = params->interval;
> err = ieee80211_hw_config(sdata->local,
> IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
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