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, 9 insertions, 7 deletions

diff --git a/net/bridge/br.c b/net/bridge/br.c
index cede010..573acdf 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -18,21 +18,24 @@
 #include <linux/init.h>
 #include <linux/llc.h>
 #include <net/llc.h>
+#include <net/stp.h>
 
 #include "br_private.h"
 
 int (*br_should_route_hook)(struct sk_buff *skb);
 
-static struct llc_sap *br_stp_sap;
+static const struct stp_proto br_stp_proto = {
+	.rcv	= br_stp_rcv,
+};
 
 static int __init br_init(void)
 {
 	int err;
 
-	br_stp_sap = llc_sap_open(LLC_SAP_BSPAN, br_stp_rcv);
-	if (!br_stp_sap) {
+	err = stp_proto_register(&br_stp_proto);
+	if (err < 0) {
 		printk(KERN_ERR "bridge: can't register sap for STP\n");
-		return -EADDRINUSE;
+		return err;
 	}
 
 	err = br_fdb_init();
@@ -65,13 +68,13 @@ err_out2:
 err_out1:
 	br_fdb_fini();
 err_out:
-	llc_sap_put(br_stp_sap);
+	stp_proto_unregister(&br_stp_proto);
 	return err;
 }
 
 static void __exit br_deinit(void)
 {
-	rcu_assign_pointer(br_stp_sap->rcv_func, NULL);
+	stp_proto_unregister(&br_stp_proto);
 
 	br_netlink_fini();
 	unregister_netdevice_notifier(&br_device_notifier);
@@ -82,7 +85,6 @@ static void __exit br_deinit(void)
 	synchronize_net();
 
 	br_netfilter_fini();
-	llc_sap_put(br_stp_sap);
 	br_fdb_get_hook = NULL;
 	br_fdb_put_hook = NULL;