netdev - Re: [PATCH net v2] net: avoid registering new queue objects after device unregistration

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Message-ID: <20211122083144.7d15a6ed@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 22 Nov 2021 08:31:44 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Antoine Tenart <atenart@...nel.org>
Cc:     davem@...emloft.net, alexander.duyck@...il.com,
        netdev@...r.kernel.org, Michal Kubecek <mkubecek@...e.cz>
Subject: Re: [PATCH net v2] net: avoid registering new queue objects after
 device unregistration

On Mon, 22 Nov 2021 17:20:07 +0100 Antoine Tenart wrote:
>    veth_set_channels+0x1c3/0x550
>    ethnl_set_channels+0x524/0x610

The patch looks fine, but ethtool calls should not happen after
unregister IMHO. Too many drivers would be surprised. 

Maybe we should catch unregistered devices in ethnl_ops_begin()?