[PATCH 1/2] libertas: disable functionality when interface is down

[Vasily Khoruzhick]

On Tuesday 02 August 2011 12:02:03 Vasily Khoruzhick wrote:
> On Monday 01 August 2011 18:43:13 Daniel Drake wrote:
> > Modify the driver so that it does not function when the interface is
> > down, in preparation for runtime power management.
> > 
> > No commands can be run while the interface is down, so the ndo_dev_stop
> > routine now directly does all necessary work (including asking the device
> > to disconnect from the network and disabling multicast functionality)
> > directly.
> > 
> > power_save and power_restore hooks are added meaning that card drivers
> > can take steps to turn the device off when the interface is down.
> > 
> > The MAC address can now only be changed when all interfaces are down;
> > the new address will be programmed when an interface gets brought up.
> > This matches mac80211 behaviour.
> > 
> > Also, some small cleanups/simplifications were made in the surrounding
> > device handling logic.
> 
> Ok, one more question: what about suspend? Maybe it worth to add flag to
> disable card before going suspend and re-enable it during resume?

Implemented it. The only remaining question is messing with power_{on,off} 
functions in if_sdio, but I'm OK with it. Will send my patches in few minutes.

Regards
Vasily