net: make WARN_ON in dev_disable_lro() useful

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index 379c993ff42175f62d4d105aa5488db6aa40e575..541f22a035a223daaec4564949bc984a19c411c6 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1315,7 +1315,8 @@ void dev_disable_lro(struct net_device *dev)
                return;
 
        __ethtool_set_flags(dev, flags & ~ETH_FLAG_LRO);
-       WARN_ON(dev->features & NETIF_F_LRO);
+       if (unlikely(dev->features & NETIF_F_LRO))
+               netdev_WARN(dev, "failed to disable LRO!\n");
 }
 EXPORT_SYMBOL(dev_disable_lro);