Re: [PATCH V1 1/2] mmc: core: Define new vendor ops to enable internal features

[Christoph Hellwig]

You don't get it.  There is no such thing "as vendor files".

I'm not sure where you get your terminology from, but whatever that is
might be your source of the fundamental misunderstanding how Linux
kernel development works.  I would recommend to take some training
before wasting everyones time.