mac80211: fix IBSS code to not sleep while atomic
With the RCU locking here we sleep while in an atomic context, since we can sleep just use mutex locking for the interface list instead of RCU. Sorry, seems I didn't get that in my UML test. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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1 changed files with 3 additions and 3 deletions
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@ -784,14 +784,14 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
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{
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struct ieee80211_sub_if_data *sdata;
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rcu_read_lock();
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list_for_each_entry_rcu(sdata, &local->interfaces, list) {
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mutex_lock(&local->iflist_mtx);
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list_for_each_entry(sdata, &local->interfaces, list) {
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if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
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continue;
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sdata->u.ibss.last_scan_completed = jiffies;
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ieee80211_sta_find_ibss(sdata);
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}
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rcu_read_unlock();
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mutex_unlock(&local->iflist_mtx);
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}
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ieee80211_rx_result
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