From: Antonio Quartulli Date: Sun, 12 Aug 2012 16:24:55 +0000 (+0200) Subject: mac80211: add supported rates change notification in IBSS X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e687f61eedab8895e5669cb82cebe0253631cd8c;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git mac80211: add supported rates change notification in IBSS In IBSS it is possible that the supported rates set for a station changes over time (e.g. it gets first initialised as an empty set because of no available information about rates and updated later). In this case the driver has to be notified about the change in order to update its internal table accordingly (if needed). This behaviour is needed by all those drivers that handle rc internally but leave stations management to mac80211 Reported-by: Gui Iribarren Signed-off-by: Antonio Quartulli [Johannes - add docs, validate IBSS mode only, fix compilation] Signed-off-by: Johannes Berg --- diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 8114f590f715..d9cef31f4cbf 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1897,10 +1897,14 @@ enum ieee80211_frame_release_type { * @IEEE80211_RC_BW_CHANGED: The bandwidth that can be used to transmit * to this station changed. * @IEEE80211_RC_SMPS_CHANGED: The SMPS state of the station changed. + * @IEEE80211_RC_SUPP_RATES_CHANGED: The supported rate set of this peer + * changed (in IBSS mode) due to discovering more information about + * the peer. */ enum ieee80211_rate_control_changed { IEEE80211_RC_BW_CHANGED = BIT(0), IEEE80211_RC_SMPS_CHANGED = BIT(1), + IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2), }; /** diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index a81117a83996..a81154d27291 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -528,6 +528,9 @@ static inline void drv_sta_rc_update(struct ieee80211_local *local, sdata = get_bss_sdata(sdata); check_sdata_in_driver(sdata); + WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED && + sdata->vif.type != NL80211_IFTYPE_ADHOC); + trace_drv_sta_rc_update(local, sdata, sta, changed); if (local->ops->sta_rc_update) local->ops->sta_rc_update(&local->hw, &sdata->vif, diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 1ebda2f9e57b..a9d93285dba7 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -459,8 +459,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, } } - if (sta && rates_updated) + if (sta && rates_updated) { + drv_sta_rc_update(local, sdata, &sta->sta, + IEEE80211_RC_SUPP_RATES_CHANGED); rate_control_rate_init(sta); + } rcu_read_unlock(); }