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From: Felix Fietkau <nbd@openwrt.org>
Subject: [PATCH] bridge: always accept EAP

Allow EAP frames to pass through bridges even in learning state. Fixes
issues with WDS.
---
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -152,7 +152,7 @@ int br_handle_frame_finish(struct net *n
 	    br_multicast_rcv(br, p, skb, vid))
 		goto drop;
 
-	if (p->state == BR_STATE_LEARNING)
+	if ((p->state == BR_STATE_LEARNING) && skb->protocol != htons(ETH_P_PAE))
 		goto drop;
 
 	BR_INPUT_SKB_CB(skb)->brdev = br->dev;