net: add RTNL_ASSERT in __netdev_update_features()

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index d1aebf7c6494..f523eee3141c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5247,6 +5247,8 @@ int __netdev_update_features(struct net_device *dev)
         u32 features;
         int err = 0;
 
+        ASSERT_RTNL();
+
         features = netdev_get_wanted_features(dev);
 
         if (dev->netdev_ops->ndo_fix_features)