[openib-general] version #defines for the kernel

[Eric Barton]

>  > > No other kernel subsystem has one, so I don't think it's 
>  > > realistic to expect one for IB.
> 
>  > Don't you think it would be useful?  Even if only to make 
>  > API changes explicit?
> 
> Sure, I admit it would be useful for out-of-tree code.  But it would
> also be an unmaintainable mess to actually try and have a set of
> feature flags, so I don't think we can do it.

At the risk of flogging a dead horse - I was only thinking of a very simple
version number that incremented on change - something like
LINUX_VERSION_CODE?

                Cheers,
                        Eric