Re: [PATCH] drm: Hack around CONFIG_AGP=m build failures

[Daniel Vetter <daniel@ffwll.ch>]

On Thu, Oct 01, 2015 at 11:58:32AM +0200, Michal Marek wrote:
> On 2015-10-01 10:19, Jani Nikula wrote:
> > On Thu, 01 Oct 2015, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> >> Surprisingly kbuild can't cope with tristates in the
> >> <module>-$(CONFIG_FOO) pattern. This patch hacks up a solution.
> > 
> > Given that it's two distinct Makefile variables (foo-y and foo-m) being
> > assigned to, I don't really find this surprising. Maybe this could be
> > made to work as a convenience, but there might be other, more surpising
> > consequences.
> 
> I actually think that kbuild should be able to handle this. The likely
> reason why it is not doing it right now is that in an ideal world,
> modules are modules can be built out of tree against just the kernel and
> their static dependencies. In real world, we sometimes have features in
> modules that are enabled if other modules are enabled. I'll post a patch
> later. We also have lots of tests fo CONFIG_FOO || CONFIG_FOO_MODULE in
> built-in code, which is a similar case.

Cool. I'll keep this hack in drm-misc then. Please cc me on the proper
solution so I know when I can revert it again.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch