openwrtv4/package/madwifi/patches/334-input.patch

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--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -950,6 +950,9 @@
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
struct sk_buff *skb1;
+ if ((vap->iv_dev->flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
+ continue;
+
if (TAILQ_NEXT(vap, iv_next) != NULL) {
skb1 = skb_copy(skb, GFP_ATOMIC);
if (skb1 == NULL) {