[review] New 'MMSharedCinterion' interface

[Dan Williams]

On Mon, 2018-08-13 at 19:25 +0200, Aleksander Morgado wrote:
> Hey,
> 
> See this MR:
> https://gitlab.freedesktop.org/mobile-broadband/ModemManager/merge_re
> quests/26
> 
> It implements a new shared interface containing the code shared
> between the Cinterion modem objects, similar to what's been suggested
> for Qmi and Xmm in other MRs.
> 
> It also fixes the logic behind the parent interface management: we
> cannot get a single static pointer pointing to the parent interface
> because this will be different depending on the object hierarchy
> (e.g.
> the location interface of the parent of MMBroadbandModemCinterion is
> the location interface of the MMBroadbandModem; while the location
> interface of the parent of the MMBroadbandModemQmiCinterion is the
> location interface of the MMBroadbandModemQmi). This issue would make
> ModemManager crash if a MMBroadbandModemQmiCinterion and a
> MMBroadbandModemCinterion modem were managed at the same time.

Merged to git master.

Dan