[PATCH] Cleanup: replace prefered with preferred

[Jani Nikula]

On Wed, 23 Oct 2019, Mark Salyzyn <salyzyn at android.com> wrote:
> I will split this between pure and inert documentation/comments for now, 
> with a followup later for the code portion which understandably is more 
> controversial.

Please split by driver/subsystem too, and it'll be all around much
easier for everyone.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center