Re: [PATCH 2/6] module: add support for symbol namespaces.

[Martijn Coenen <maco@android.com>]

On Mon, Jul 23, 2018 at 1:12 PM, Jessica Yu <jeyu@kernel.org> wrote:
> IMO I don't think we should bend over backwards to accommodate
> out-of-tree modules - modifying the module loader to recognize even
> more special sections to accommodate these OOT modules would be where
> we'd draw the line I think.

I agree with you, I really don't like making the module loader more
complex (which is why I didn't opt to create separate sections in the
first place), and in the end this change will in some ways benefit
out-of-tree drivers too, even though it will be a bit painful now.

> I think going forward I would prefer to have export namespaces to be a
> normal and regular part of kernel API (as in, we shouldn't require a
> new option for it), and that the warnings for 1-2 cycles are courteous
> enough - but anyone with stronger opinions about this should speak up.

That aligns with how I think about this; if we want this to be a
standard thing in the kernel, we should at some point enforce it,
because it's pretty easy to ignore the warning. The good thing is that
it's not a big on/off switch, but subsystem maintainers can just
introduce namespaces when it makes sense.

Thanks,
Martijn

>
> Thanks,
>
> Jessica