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authorAntonio Quartulli <ordex@autistici.org>2012-08-12 16:24:55 (GMT)
committerJohannes Berg <johannes.berg@intel.com>2012-08-20 11:31:43 (GMT)
commite687f61eedab8895e5669cb82cebe0253631cd8c (patch)
tree3021da723c82f251fb2fd1cbef1083e804d53829 /net
parent4bd4c2dd8e734868ae9f0ceb87a6edd27df8f45c (diff)
downloadlinux-e687f61eedab8895e5669cb82cebe0253631cd8c.tar.xz
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>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/driver-ops.h3
-rw-r--r--net/mac80211/ibss.c5
2 files changed, 7 insertions, 1 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index a81117a..a81154d 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 1ebda2f..a9d9328 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();
}