Re: [PATCH v2 2/4] knownnetworks: sort known frequencies by BSS rank

[Denis Kenzior <denkenz@gmail.com>]

Hi James,

>> Perhaps an easier way to accomplish this would be to add known frequencies in 
>> reverse bss->rank sorted order.  That way last seen frequency with best ranked 
>> BSS would be first?
> 
> I'm not sure I understand, how would this be any different than just reversing

Well, right now we maintain the least recently seen frequency list in a very 
simple way:

- When scan results become available
	- Walk the result list (which is sorted by bss_rank?)
	- Add each result's frequency to the frequency cache
		- Remove any matching entry in the cache
		- Add it to head

Since the result list is sorted, the top entry in the frequency cache is the 
least ranked.  This doesn't matter for small networks since there would only be 
a couple results.

What we should do is to add the frequencies to the frequency cache in reverse 
order.  That way the highest ranked bss is at the top of the frequency cache.

Hope that made sense.
  Regards,
-Denis