On 11/03/2015 09:36 PM, Jarod Wilson wrote:
> With moving netdev_sync_lower_features() after the .ndo_set_features
> calls, I neglected to verify that devices added *after* a flag had been
> disabled on an upper device were properly added with that flag disabled as
> well. This currently happens, because we exit __netdev_update_features()
> when we see dev->features == features for the upper dev. We can retain the
> optimization of leaving without calling .ndo_set_features with a bit of
> tweaking and a goto here.
>
> Changing err to ret was somewhat arbitrary and makes the patch look more
> involved, but seems to better fit the altered use.
>
> Fixes: fd867d51f ("net/core: generic support for disabling netdev features
> down stack")
> CC: "David S. Miller" <[email protected]>
> CC: Eric Dumazet <[email protected]>
> CC: Jay Vosburgh <[email protected]>
> CC: Veaceslav Falico <[email protected]>
> CC: Andy Gospodarek <[email protected]>
> CC: Jiri Pirko <[email protected]>
> CC: Nikolay Aleksandrov <[email protected]>
> CC: Michal Kubecek <[email protected]>
> CC: Alexander Duyck <[email protected]>
> CC: [email protected]
> Signed-off-by: Jarod Wilson <[email protected]>
> ---
> net/core/dev.c | 21 ++++++++++++---------
> 1 file changed, 12 insertions(+), 9 deletions(-)
>
Thanks for the quick response,
Reported-by: Nikolay Aleksandrov <[email protected]>
Tested-by: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
Fixes: fd867d51f889 ("net/core: generic support for disabling netdev features
down stack")
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