old_presp 487 net/mac80211/ibss.c struct beacon_data *presp, *old_presp; old_presp 515 net/mac80211/ibss.c old_presp = rcu_dereference_protected(ifibss->presp, old_presp 529 net/mac80211/ibss.c if (old_presp) old_presp 530 net/mac80211/ibss.c kfree_rcu(old_presp, rcu_head);