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Re: [PATCH] mac80211: enable IBSS merging

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On Sunday 17 February 2008 18:11:43 Johannes Berg wrote:
> Looks good, thanks for your patience. 

thanks for your review :)

> I have two minor comments still, 
> sorry for the lack of focus in earlier review.
>
> > +		} else if (local && local->ops && local->ops->get_tsf)
> > +			/* second best option: get current TSF */
> > +			rx_timestamp = local->ops->get_tsf(local_to_hw(local));
>
> This is assuming that we don't manage to process the frame within 192
> usecs. I guess that will be true since we defer it to a tasklet, but do
> we want to bet on it in the future or should we simply widen the window
> where the merge *won't* happen because the driver doesn't provide enough
> info and also add the 24 bytes offset here?

true. i'll change that and resend the patch. i have to rebase it anyways for 
the current tree.

> Also something else that just occurred to me... You wrote in the
>
> description:
> > * to enable this we have to let all beacons thru in IBSS mode, even if
> > they have a different BSSID.
>
> which I think refers to the last hunk of your patch. However, hardware
> also has such filters, so I think we also should set the
> FIF_BCN_PRBRESP_PROMISC filter flag when IBSS is enabled, we don't want
> to force drivers to do this implicitly when IBSS interfaces are added.

hmm, i don't know about that and i don't seem to need that for ath5k, so can 
we do that in a follow up patch, please?

bruno
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