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Re: [ath9k-devel] [PATCH 3/3] ath9k: Keep track of stations for debugfs.

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On Thu, Jan 06, 2011 at 06:45:33PM -0800, Ben Greear wrote:
> On 01/06/2011 06:30 PM, Luis R. Rodriguez wrote:
> > On Thu, Jan 6, 2011 at 4:46 PM,<greearb@xxxxxxxxxxxxxxx>  wrote:
> >> +#define ATH9K_MAX_STATIONS 1024
> >
> > How about making this a Kconfig with a default to a value of the known
> > (by you) max workable number of STAs that one can use on ath9k, which
> > is modifiable to other values by power of two up to 1024. Advise in
> > the kconfig that if more STAs are used then some issue may arise but
> > should be reported (so the issue can be fixed). This way by default
> > normal users (you're not normal) won't enable>  max known workable
> > stable number of STAs on ath9k.
> 
> This is just for debugging at this point.  It wastes a bit of memory
> when debugfs is enabled, but otherwise doesn't affect anything.  It's
> not even really a problem if there are more stations than fit in
> the array.

I meant to use the value as a limit on the # of STAs you can create
with one ath9k device. The debugfs can still be used as you did,
only that the limit would come from the kconfig value.

> I can reproduce all my problems with < 128, so if you'd prefer
> the number be smaller, that's fine with me.  I don't think it's
> worth a configurable value, however.

I thikn we should limit the # STAs to whatever it is that you can
use in a realiable way, this should be a driver limitation, but
I figured you'd want to configure this to a higher value yourself
for whatever tests you are doing. We should fix it though but at
least other clueless users would not go over stable limit you have
found.

  Luis
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