Re: [PATCH - Linus please apply] ia64: fix build errors by exporting paddr_to_nid()

[Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>]

On Tue, May 28, 2019 at 9:14 AM Tony Luck <tony.luck@xxxxxxxxx> wrote:
>
> Fix build errors on ia64 when DISCONTIGMEM=y and NUMA=y by
> exporting paddr_to_nid().

Applied.

Just out of curiosity, what caused this error? It doesn't _look_ new,
just judging from the patch itself. Is this just a configuration that
nobody has noticed before, or something else that changed that caused
it to happen now?

                Linus