[PATCH] [media] [kbuild] Add and use IS_REACHABLE macro

[arnd@arndb.de (Arnd Bergmann)]

On Thursday 19 February 2015 16:06:18 Michal Marek wrote:
> > We have similar problems in other areas
> > of the kernel. In theory, we could enforce the VIDEO_TUNER driver to
> > be modular here by adding lots of dependencies to it:
> > 
> > config VIDEO_TUNER
> >       tristate
> >       depends on MEDIA_TUNER_TEA5761 || !MEDIA_TUNER_TEA5761
> >       depends on MEDIA_TUNER_TEA5767 || !MEDIA_TUNER_TEA5767
> >       depends on MEDIA_TUNER_MSI001  || !MEDIA_TUNER_MSI001
> 
> Nah, that's even uglier. I suggest to merge your IS_REACHABLE patch.
> 

Ok, can I take this as an ack from your side to merge the
include/linux/kconfig.h part of the patch through the linux-media
tree?

I thought about splitting up the patch into two, but that would
just make merging it harder because we'd still have the dependency.

	Arnd