netdev - Re: Cannot move macvlan interface on top of bonding device

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Message-ID: <20140917190626.GA11354@breakpoint.cc>
Date:	Wed, 17 Sep 2014 21:06:26 +0200
From:	Florian Westphal <fw@...len.de>
To:	Cong Wang <cwang@...pensource.com>
Cc:	Francesco Ruggeri <fruggeri@...sta.com>,
	netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Weilong Chen <chenweilong@...wei.com>,
	Florian Westphal <fw@...len.de>
Subject: Re: Cannot move macvlan interface on top of bonding device

Cong Wang <cwang@...pensource.com> wrote:
> On Wed, Sep 17, 2014 at 8:56 AM, Francesco Ruggeri <fruggeri@...sta.com> wrote:
> > This used to work in older releases.
> > The problem seems to be that commit f939981492 sets NETIF_F_NETNS_LOCAL
> > on bonding interfaces, and commit 797f87f83 causes macvlan interfaces
> > to inherit its features from the lower device.
> >
> > Is there a reason why NETIF_F_NETNS_LOCAL should be inherited from the
> > lower device
> > by macvlan interfaces?
> 
> commit 797f87f83 looks wrong, it should not inherit NETIF_F_NETNS_LOCAL,
> so just clear this flag. Please submit a patch.

Under which conditions would NETIF_F_NETNS_LOCAL have to be inherited?
(i.e., why is it inheritable in the first place?)
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