PS mode STA trigger driver bug

Jouni Malinen jkmaline at
Thu May 6 23:48:09 EDT 2004

On Sat, Apr 17, 2004 at 07:31:38PM -0400, Joe Parks wrote:

> On Thu, 8 Apr 2004 21:46:04 -0700
> Jouni Malinen <jkmaline at> wrote:

> > I need to take a bit closer look at this at some point, but if you are
> > interested in experimental changed, you could try to modify that
> > pspoll_send_buffered() function. One trivial change would be to change
> > the call to use kernel queue:

> I've now tried both of these changes.
> The first one ( dev_queue_xmit(skb); ) appears to work perfectly.  After 24 hours of testing on several devices with PS STAs associated, not a single "driver bug" has been observed. 
> The second one seemed to reduce the problem (although that may have just been perception on my part) but it certainly didn't eliminate it.  I tested that one first because it looked somehow more attractive to me.

Thanks for testing this. I changed the driver to use dev_queue_xmit()
for now. It may add latency to some cases, but better make sure it is
stable first.

Jouni Malinen                                            PGP id EFC895FA

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