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Re: [PATCH 1/2] nl80211: Add LIVE_ADDR_CHANGE feature

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Hi,

On Fri, 2019-09-13 at 22:48 +0200, Johannes Berg wrote:
> On Fri, 2019-09-13 at 12:59 -0700, James Prestwood wrote:
> > Add a new feature bit signifying that the wireless hardware
> > supports
> > changing the mac address while the underlying net_device is
> > UP.  Note
> > that this is slightly different from IFF_LIVE_ADDR_CHANGE as
> > additional
> > restrictions might be imposed by the hardware.  Typical
> > restrictions
> > are:
> > 	- No connection is active on this interface, e.g. carrier is
> > off
> > 	- No scan is in progress
> > 	- No offchannel operation is in progress
> 
> Hmm, what do you need this patch for?
> 
> IFF_LIVE_ADDR_CHANGE should be sufficient to discover it?

Because userspace needs to know if this is supported?
IFF_LIVE_ADDR_CHANGE is a private flag... AFAIK userspace has no way of
obtaining this.

Thanks,
James

> 
> johannes
> 




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