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mac80211: fix notify_mac function
The ieee80211_notify_mac() function uses ieee80211_sta_req_auth() which in turn calls ieee80211_set_disassoc() which calls a few functions that need to be able to sleep, so ieee80211_notify_mac() cannot use RCU locking for the interface list and must use rtnl locking instead. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -2570,14 +2570,14 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
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switch (notif_type) {
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case IEEE80211_NOTIFY_RE_ASSOC:
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rcu_read_lock();
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list_for_each_entry_rcu(sdata, &local->interfaces, list) {
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rtnl_lock();
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list_for_each_entry(sdata, &local->interfaces, list) {
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if (sdata->vif.type != NL80211_IFTYPE_STATION)
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continue;
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ieee80211_sta_req_auth(sdata, &sdata->u.sta);
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}
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rcu_read_unlock();
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rtnl_unlock();
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break;
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}
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}
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