netdev - Re: [PATCH net-next v3 2/2] net: plumb extack in __dev_change_net

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Message-ID: <CANn89iKdYXKqePQ5g5eU9UGuTi4fZaxwWy2BK7D+F2wkQHAXhg@mail.gmail.com>
Date: Thu, 20 Feb 2025 14:17:10 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Alexander Lobakin <aleksander.lobakin@...el.com>, 
	Ido Schimmel <idosch@...sch.org>, Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3 2/2] net: plumb extack in __dev_change_net_namespace()

On Thu, Feb 20, 2025 at 2:03 PM Nicolas Dichtel
<nicolas.dichtel@...nd.com> wrote:
>
> It could be hard to understand why the netlink command fails. For example,
> if dev->netns_local is set, the error is "Invalid argument".
>

After your patch, a new message is : "  "The interface has the 'netns
local' property""

Honestly, I am not sure we export to user space the concept of 'netns local'

"This interface netns is not allowed to be changed" or something like that ?