[openib-general] backwards compatibility

[Grant Grundler]

On Fri, Dec 30, 2005 at 01:50:00AM +0200, Michael S. Tsirkin wrote:
> Hi!
> I'm reading a thread on lkml about backwards compatibility
> http://lkml.org/lkml/2005/12/29/204
> and I wander whether we should work harder on supporting
> older userspace library ABIs in kernel?
> Currently, we only implement backwards compatibility in user-space,
> so that you always have to upgrade userspace when upgrading the kernel,
> but we could do this in kernel, too.
> 
> We would just need the kernel to return a pair of ABI revision numbers:
> minimal and maximal ABI supported.
> 
> What do you guys think?

I don't expect this fly with kernel.org.
Stuff like this just clutters up the kernel source tree for the most part.
Userspace suffers for it (a la glibc) but I still think it's easier
to deal with there.

grant