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authorNikolay Aleksandrov <[email protected]>2015-11-13 14:54:01 +0100
committerDavid S. Miller <[email protected]>2015-11-16 14:56:03 -0500
commit5f8dc33e8ee7e59bee3bc6dc2088807a384b285a (patch)
tree9852b51304efc0a52a71579bc47c2d4039c6fe26
parentbbe14f54297467ddb23b7d1db564a2468c6ae151 (diff)
net: fix feature changes on devices without ndo_set_features
When __netdev_update_features() was updated to ensure some features are disabled on new lower devices, an error was introduced for devices which don't have the ndo_set_features() method set. Before we'll just set the new features, but now we return an error and don't set them. Fix this by returning the old behaviour and setting err to 0 when ndo_set_features is not present. Fixes: e7868a85e1b2 ("net/core: ensure features get disabled on new lower devs") CC: Jarod Wilson <[email protected]> CC: Jiri Pirko <[email protected]> CC: Ido Schimmel <[email protected]> CC: Sander Eikelenboom <[email protected]> CC: Andy Gospodarek <[email protected]> CC: Florian Fainelli <[email protected]> Signed-off-by: Nikolay Aleksandrov <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Reviewed-by: Andy Gospodarek <[email protected]> Reviewed-by: Jarod Wilson <[email protected]> Tested-by: Florian Fainelli <[email protected]> Tested-by: Dave Young <[email protected]> Tested-by: Christian Borntraeger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
-rw-r--r--net/core/dev.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index ab9b8d0d115e..4a1d198dbbff 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6426,6 +6426,8 @@ int __netdev_update_features(struct net_device *dev)
if (dev->netdev_ops->ndo_set_features)
err = dev->netdev_ops->ndo_set_features(dev, features);
+ else
+ err = 0;
if (unlikely(err < 0)) {
netdev_err(dev,