On Sat, 6 Oct 2018 06:29:51 -0700 Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > I had an informal chat with Bradley Kuhn at LinuxCon Japan about using > CC-BY-SA-4.0 and he indicated that I was probably better off using the > GPL-2(+) for documentation. I've changed the XArray documentation from > CC-BY-SA-4.0 to GPL-2+. Would you consider doing the same for Documentation/core-api/idr.rst? That's the only CC-SA SPDX tag in the kernel now, and it's a clear example of just what I'm worried about: it pulls in a nice DOC section from the code when you run Sphinx on it, so we're not just talking function prototypes here. I was likely to come knocking on your door after my upcoming conversation anyway...:) Thanks, jon