From: "Ren, Cloud" <redacted>
Date: Thu, 20 Oct 2011 07:29:27 +0000

Thanks for your information.

Drivers on different OSs share alf_hw.c, alf_hw.h, alc_hw.c and alc_hw.h

So it looks some of codes are duplicate, because other drivers need them.

You cannot do this, you must get rid of such compatability wrappers
and unused code.