Re: [PATCH 02/24] Add the ability to lock down access to the running kernel image

From: James Morris
Date: Thu Apr 06 2017 - 17:56:25 EST


On Thu, 6 Apr 2017, David Howells wrote:

> James Morris <jmorris@xxxxxxxxx> wrote:
>
> > > +static __read_mostly bool kernel_locked_down;
> >
> > How about marking this __ro_after_init if ALLOW_LOCKDOWN_LIFT is not
> > configured?
>
> I guess lock_kernel_down() would need to be __init also in that case.

Ideally, yes.

>
> Also, the implementation of lift_kernel_lockdown() should be conditional on
> CONFIG_ALLOW_LOCKDOWN_LIFT.
>
> David
>

--
James Morris
<jmorris@xxxxxxxxx>