On 4/14/2018 12:56 PM, Stanislaw Gruszka wrote:
On Fri, Apr 13, 2018 at 11:06:13AM -0700, Jakub Kicinski wrote:
>On Fri, 13 Apr 2018 16:44:38 +0200, Stanislaw Gruszka wrote:
> >When finishing scanning we switch to operational channel sill with
> >SCANNING flag. This mean that we never perform calibration works after
> >scanning. To fix the problem cancel and queue calibration works on
> >.sw_scan_start() and .sw_scan_complete() routines.
> >
> >Signed-off-by: Stanislaw Gruszka<sgrus...@redhat.com>
>
>IOW the stack will potentially ask us to return to the original channel
>before calling .sw_scan_complete()?  Hm.  That's unpleasant.
I think the stack need to assure we start and end scanning on
operational channel, otherwise we would have possibility to be on
undefined channel during normal work.


Returning to the operating channels during scanning is mostly important when connected so you can receive the beacon of your AP and mc/bc traffic and also to handle regular unicast traffic so you are not screwing up your TCP window too much for instance.

Regards,
Arend

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