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authorArik Nemtsov <arik@wizery.com>2012-06-03 23:31:56 +0300
committerJohn W. Linville <linville@tuxdriver.com>2012-06-06 15:20:23 -0400
commit2e8d397eeeb1f5bd932d20d6abc020afe7e63b0b (patch)
tree0624a43e9d334343abb457842be8cde524c4ee3f /net
parent2b0446c4205fb3e77b205276ecd36d30b82cbb84 (diff)
downloadblackbird-op-linux-2e8d397eeeb1f5bd932d20d6abc020afe7e63b0b.tar.gz
blackbird-op-linux-2e8d397eeeb1f5bd932d20d6abc020afe7e63b0b.zip
mac80211: add stations after AP start on reconfig
When performing a HW restart for an AP mode interface, add stations back only after the AP is beaconing. This mimics the normal flow of STA addition on AP. Some devices (wlcore) do not support adding stations before beaconing, so this has the added benefit of making recovery work for them. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/util.c37
1 files changed, 30 insertions, 7 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index b007c6861032..1df4019f294b 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1279,14 +1279,19 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* add STAs back */
mutex_lock(&local->sta_mtx);
list_for_each_entry(sta, &local->sta_list, list) {
- if (sta->uploaded) {
- enum ieee80211_sta_state state;
+ enum ieee80211_sta_state state;
- for (state = IEEE80211_STA_NOTEXIST;
- state < sta->sta_state; state++)
- WARN_ON(drv_sta_state(local, sta->sdata, sta,
- state, state + 1));
- }
+ if (!sta->uploaded)
+ continue;
+
+ /* AP-mode stations will be added later */
+ if (sta->sdata->vif.type == NL80211_IFTYPE_AP)
+ continue;
+
+ for (state = IEEE80211_STA_NOTEXIST;
+ state < sta->sta_state; state++)
+ WARN_ON(drv_sta_state(local, sta->sdata, sta, state,
+ state + 1));
}
mutex_unlock(&local->sta_mtx);
@@ -1383,6 +1388,24 @@ int ieee80211_reconfig(struct ieee80211_local *local)
}
}
+ /* APs are now beaconing, add back stations */
+ mutex_lock(&local->sta_mtx);
+ list_for_each_entry(sta, &local->sta_list, list) {
+ enum ieee80211_sta_state state;
+
+ if (!sta->uploaded)
+ continue;
+
+ if (sta->sdata->vif.type != NL80211_IFTYPE_AP)
+ continue;
+
+ for (state = IEEE80211_STA_NOTEXIST;
+ state < sta->sta_state; state++)
+ WARN_ON(drv_sta_state(local, sta->sdata, sta, state,
+ state + 1));
+ }
+ mutex_unlock(&local->sta_mtx);
+
/* add back keys */
list_for_each_entry(sdata, &local->interfaces, list)
if (ieee80211_sdata_running(sdata))
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