bridge: Use STP demux

Use the STP demux layer for receiving STP PDUs instead of directly
registering with LLC.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 9 deletions

diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 9dc2de656965..996476174517 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -18,6 +18,7 @@
 #include <net/net_namespace.h>
 #include <net/llc.h>
 #include <net/llc_pdu.h>
+#include <net/stp.h>
 #include <asm/unaligned.h>
 
 #include "br_private.h"
@@ -131,10 +132,9 @@ void br_send_tcn_bpdu(struct net_bridge_port *p)
  *
  * NO locks, but rcu_read_lock (preempt_disabled)
  */
-int br_stp_rcv(struct sk_buff *skb, struct net_device *dev,
-               struct packet_type *pt, struct net_device *orig_dev)
+void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
+                struct net_device *dev)
 {
-        const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
         const unsigned char *dest = eth_hdr(skb)->h_dest;
         struct net_bridge_port *p = rcu_dereference(dev->br_port);
         struct net_bridge *br;
@@ -146,11 +146,6 @@ int br_stp_rcv(struct sk_buff *skb, struct net_device *dev,
         if (!p)
                 goto err;
 
-        if (pdu->ssap != LLC_SAP_BSPAN
-            || pdu->dsap != LLC_SAP_BSPAN
-            || pdu->ctrl_1 != LLC_PDU_TYPE_U)
-                goto err;
-
         if (!pskb_may_pull(skb, 4))
                 goto err;
 
@@ -224,5 +219,4 @@ int br_stp_rcv(struct sk_buff *skb, struct net_device *dev,
         spin_unlock(&br->lock);
  err:
         kfree_skb(skb);
-        return 0;
 }