[PATCH] cxl: fix build when CONFIG_DEBUG_FS=n

[Michael Ellerman]

Andrew Donnellan <andrew.donnellan at au1.ibm.com> writes:

> Stub out the debugfs functions so that the build doesn't break when
> CONFIG_DEBUG_FS=n.

It's not a big deal, but it's preferable to do the stubs as static
inlines in a header. That way they generate no code.

Doing it this way, in a C file, you'll still get lots of one and two
instruction functions generated in your vmlinux, which is less neat.

cheers