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SubjectRe: [PATCH v2 2/3] kconfig: Ask user if string needs to be changed when dependency changed
On Sun, Feb 21, 2021 at 8:09 PM Mickaël Salaün <mic@digikod.net> wrote:
>
>
> On 21/02/2021 09:47, Masahiro Yamada wrote:
> > On Tue, Feb 16, 2021 at 3:14 AM Mickaël Salaün <mic@digikod.net> wrote:
> >>
> >> From: Mickaël Salaün <mic@linux.microsoft.com>
> >>
> >> Content of string configuration may depend on related kernel
> >> configurations. Modify oldconfig and syncconfig to inform users about
> >> possible required configuration update and give them the opportunity to
> >> update it:
> >> * if dependencies of this string has changed (e.g. enabled or disabled),
> >> * and if the current value of this string is different than the (new)
> >> default one.
> >>
> >> This is particularly relevant for CONFIG_LSM which contains a list of
> >> LSMs enabled at boot, but users will not have a chance to update this
> >> list with a make oldconfig.
> >
> > If CONFIG_LSM already exists in the .config,
> > oldconfig does not show a prompt.
> > This is the expected behavior.
>
> It is not the behavior wished for LSM stacking.

Because LSM is doing wrong.


> >
> > You are trying to fix your problem in a wrong way.
> > NACK.
>
> What do you suggest to ensure that users will be asked to update the
> CONFIG_LSM string if they add or remove an LSM?


Fix it in the security subsystem.


Hint:
See 050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0

--
Best Regards
Masahiro Yamada

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