Re: [PATCH] ia64: export memory_add_physaddr_to_nid to fix cxl build error

[Arnd Bergmann]

On Sun, Sep 11, 2022, at 3:26 AM, Randy Dunlap wrote:
> cxl_pmem.ko uses memory_add_physaddr_to_nid() but ia64 does not export it,
> so this causes a build error:
>
> ERROR: modpost: "memory_add_physaddr_to_nid" [drivers/cxl/cxl_pmem.ko] 
> undefined!
>
> Fix this by exporting that function.
>
> Fixes: 8c2676a5870a ("hot-add-mem x86_64: memory_add_physaddr_to_nid 
> node fixup")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: Ben Widawsky <bwidawsk@xxxxxxxxxx>
> Cc: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> Cc: linux-ia64@xxxxxxxxxxxxxxx
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Keith Mannthey <kmannth@xxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> ---
> Arnd, can you take this in your one-off fixes arch tree, or would
> you prefer for Andrew to take it?

I've applied it to the asm-generic tree for 6.1 now, as I don't
expect any other bugfixes for 6.0 to go through that tree. It's
clearly a bugfix, but since the original commit you cite was from
2006, I assume it can wait a little longer.

     Arnd