[PATCH xserver 23/24] Remove readmask from screen block/wakeup handler

[Mark Kettenis]

> From: Keith Packard <keithp at keithp.com>
> Date: Mon, 21 Sep 2015 07:16:34 +0100
> 
> With no users of the interface needing the readmask anymore, we can
> remove it from the argument passed to these functions.
> 
> Signed-off-by: Keith Packard <keithp at keithp.com>

This, of course, has impact on pretty much all the drivers.  Many use
compat-api.h and could probably be fixed by adding an additional
stanza there.  But somebody still needs to do that work.