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Date:   Mon, 05 Dec 2016 22:53:10 -0800
From:   Eric Dumazet <>
To:     Gao Feng <>
Cc:     "David S. Miller" <>,
        Mahesh Bandewar <>,
        Eric Dumazet <>,
        Linux Kernel Network Developers <>
Subject: Re: [PATCH net-next 1/1] driver: ipvlan: Free the port memory
 directly with kfree instead of kfree_rcu

On Tue, 2016-12-06 at 14:31 +0800, Gao Feng wrote:

> Because I don't fully hold the ipvlan codes now, I am afraid of that
> there is someone which may get the port address when
> ipvlan_port_destroy. So the original ipvlan_port_destroy uses the
> kfree_rcu to avoid it.
> I am sure there is unnecessary to use kfree in ipvlan_port_create.

And I am pretty sure it is unnecessary to use kfree_rcu() in
ipvlan_port_destroy() as well.

I highly suggest you spend time on learning why.

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