[PATCH 4/6] staging: vc04_services: Remove dmac_map_area

[Greg KH]

On Wed, Oct 19, 2016 at 01:37:30AM -0700, Michael Zoran wrote:
> >From 8084d0832baf89990adef43a62801fccde20d0d8 Mon Sep 17 00:00:00 2001
> F
> rom: Michael Zoran <mzoran at crowfest.net>
> Date: Wed, 19 Oct 2016 00:54:11
> -0700
> Subject: [PATCH 4/6] staging: vc04_services: Remove dmac_map_area
> 
> T
> he arm specific code of VCHIQ uses dmac_map_area which is
> not currently
> supported on arm64.  This change adds
> an architecture neutral
> replacement based on
> dma_map_page that does not use this feature.

>From what I can read in this email, I like the patch, but have you
noticed any performance issues?  I know the comment says they are doing
this "for a good reason", but is there really one?

thanks,

greg k-h