switchdev: Require RTNL mutex to be held when sending FDB notifications

[karo-tx-linux.git] / net / bridge / br.c

diff --git a/net/bridge/br.c b/net/bridge/br.c
index a1abe4936fe15299b7643b8944023050c5f938c1..3addc05b9a16676b07ca13bc6faf0cba62b3acfd 100644 (file)
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -121,6 +121,7 @@ static struct notifier_block br_device_notifier = {
        .notifier_call = br_device_event
 };
 
+/* called with RTNL */
 static int br_switchdev_event(struct notifier_block *unused,
                              unsigned long event, void *ptr)
 {
@@ -130,7 +131,6 @@ static int br_switchdev_event(struct notifier_block *unused,
        struct switchdev_notifier_fdb_info *fdb_info;
        int err = NOTIFY_DONE;
 
-       rtnl_lock();
        p = br_port_get_rtnl(dev);
        if (!p)
                goto out;
@@ -155,7 +155,6 @@ static int br_switchdev_event(struct notifier_block *unused,
        }
 
 out:
-       rtnl_unlock();
        return err;
 }