diff options
| author | Antonio Quartulli <ordex@autistici.org> | 2012-08-12 18:24:55 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-08-20 13:31:43 +0200 |
| commit | e687f61eedab8895e5669cb82cebe0253631cd8c (patch) | |
| tree | 3021da723c82f251fb2fd1cbef1083e804d53829 | |
| parent | 4bd4c2dd8e734868ae9f0ceb87a6edd27df8f45c (diff) | |
| download | linux-e687f61eedab8895e5669cb82cebe0253631cd8c.tar.bz2 | |
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 <gui@altermundi.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
[Johannes - add docs, validate IBSS mode only, fix compilation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | include/net/mac80211.h | 4 | ||||
| -rw-r--r-- | net/mac80211/driver-ops.h | 3 | ||||
| -rw-r--r-- | net/mac80211/ibss.c | 5 |
3 files changed, 11 insertions, 1 deletions
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(); } |