Re: Non-GPL export of invalidate_mmap_range

Andrew Morton
2004-02-18T23:32:34Z

Christoph Hellwig <hch@infradead.org> wrote:
>
> Yes. Andrew, please read the GPL, it's very clear about derived works.
> Then please tell me why you think gpfs is not a derived work.

I haven't seen the code.

> > But at the end of the day, if we decide to not export this symbol, we owe
> > Paul a good, solid reason, yes?
>
> Yes. We've traditionally not exported symbols unless we had an intree user,
> and especially not if it's for a module that's not GPL licensed.

That's certainly a good rule of thumb and we (and I) have used it before.

What is the reasoning behind it?