mac80211: keep a separate list of monitor interfaces that are up
In addition to keeping monitor interfaces on the regular list of
interfaces, keep those that are up and not in cooked mode on a
separate list. This saves having to iterate all interfaces when
delivering to monitor interfaces.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e35c42e..638dc63 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -593,16 +593,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = htons(ETH_P_802_2);
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
- continue;
-
- if (sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES)
- continue;
-
- if (!ieee80211_sdata_running(sdata))
- continue;
-
+ list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) {
if (prev_dev) {
skb2 = skb_clone(skb, GFP_ATOMIC);
if (skb2) {