Re: [PATCH] rndis_wlan: don't report station signal

[Johannes Berg <johannes@sipsolutions.net>]

On Thu, 2012-03-15 at 11:03 -0400, John W. Linville wrote:
> On Thu, Mar 15, 2012 at 03:47:14PM +0100, Johannes Berg wrote:
> > On Thu, 2012-03-15 at 10:25 -0400, John W. Linville wrote:
> > > On Thu, Mar 15, 2012 at 03:13:25PM +0100, Johannes Berg wrote:
> > > > From: Johannes Berg <johannes.berg@intel.com>
> > > > 
> > > > The station signal value is supposed to be in dBm
> > > > which the device can't give, so don't report it.
> > > > 
> > > > Signed-off-by: Johannes Berg <johannes.berg@intel.com>
> > > 
> > > Won't this break functionality for users of this device?
> > 
> > I don't know if it breaks functionality, but filling in values in the
> > wrong units doesn't seem like a good plan.
> 
> No, but if it isn't actually hurting anyting then I would rather
> change a comment or two (and perhaps augment the nl80211 code) than
> to simply break things for users.
> 
> FWIW, cfg80211_wireless_stats has been able to cope with the
> unspecified units since it was implemented in commit 8990646d.
> Maybe that was a bug but it is a user-visible one that has been around
> for years now...

Interesting, I had no idea. I was more concerned with the actual nl80211
exporting (nl80211_send_station), not wext. Seems like something like
this patch would be sufficient then:
http://p.sipsolutions.net/ca88e4afc69683ca.txt

Of course, we could add nl80211 attributes for unspec in the station
info too.

johannes