netvsc: fix RCU warning in get_stats

The statistics functionis called with RTNL held during probe but with RCU held during access from /proc and elsewhere. This is safe so update the lockdep annotation. Signed-off-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
jbg · Apr 17, 2017 · 776e726 · 776e726
1 parent 1dbba4c
commit 776e726
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
@@ -943,7 +943,7 @@ static void netvsc_get_stats64(struct net_device *net,
 			       struct rtnl_link_stats64 *t)
 {
 	struct net_device_context *ndev_ctx = netdev_priv(net);
-	struct netvsc_device *nvdev = rcu_dereference(ndev_ctx->nvdev);
+	struct netvsc_device *nvdev = rcu_dereference_rtnl(ndev_ctx->nvdev);
 	int i;
 
 	if (!nvdev)