Re: [ 13/54] net: In unregister_netdevice_notifier unregister thenetdevices.

From: Greg KH
Date: Sat May 26 2012 - 20:23:37 EST


On Sat, May 26, 2012 at 08:18:14PM -0400, David Miller wrote:
> From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
> Date: Sun, 27 May 2012 09:13:49 +0900
>
> > On Mon, May 21, 2012 at 02:35:12PM -0300, Herton Ronaldo Krzesinski wrote:
> >> On Fri, May 18, 2012 at 02:16:12PM -0700, Greg KH wrote:
> >> > 3.0-stable review patch. If anyone has any objections, please let me know.
> >> >
> >> > ------------------
> >> >
> >> >
> >> > From: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
> >> >
> >> > [ Upstream commit 7d3d43dab4e978d8d9ad1acf8af15c9b1c4b0f0f ]
> >> >
> >> > We already synthesize events in register_netdevice_notifier and synthesizing
> >> > events in unregister_netdevice_notifier allows to us remove the need for
> >> > special case cleanup code.
> >> >
> >> > This change should be safe as it adds no new cases for existing callers
> >> > of unregiser_netdevice_notifier to handle.
> >> >
> >> > Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
> >> > Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> >> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> >>
> >> Please also include these two commits in addition to this change, to
> >> avoid a regression with pktgen:
> >> commit c57b54684060c8aced64a5b78ff69ff289af97b9
> >> commit d4b1133558e0d417342d5d2c49e4c35b428ff20d
> >
> > I need an ack from the network maintainers for me to be able to accept
> > this.
>
> These bugs only effect networking hackers doing low-level packet
> spamming on their network using pktgen, who furthermore try to unload
> the pktgen module.
>
> Low level network packet spamming using pktgen, and trying to unload
> that module, adds up to an extremely small minority of users.
>
> Therefore these changes are not worth putting into -stable by any
> measurement.

Ok, thanks, I'll not do this for 3.0-stable then, as no developer should
really be using that kernel anymore :)

greg k-h
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