[PATCH 1/2] net: dsa: RCU-protect dsa_ptr in struct net_device

@@ -1594,10 +1592,11 @@ void dsa_switch_shutdown(struct dsa_switch *ds) }

/* Disconnect from further netdevice notifiers on the conduit,

• * since netdev_uses_dsa() will now return false.
  

• * from now on, netdev_uses_dsa_currently() will return false.
  

  */ dsa_switch_for_each_cpu_port(dp, ds)

• dp->conduit->dsa_ptr = NULL;
  

• rcu_assign_pointer(dp->conduit->dsa_ptr, NULL);
  

• synchronize_rcu();

  rtnl_unlock();

out:

Hi, I am a newbie here. Thanks for the opportunity for learning more about rcu. Wouldn't it make more sense to call synchronize_rcu after rtnl_unlock?