Alina Friedrichsen wrote:
> Hi Sujith!
>
> > The strange thing is after the ping from peer1 to peer2, the ping from
> > peer2 to peer1 works too. The same is if I start tcpdump on peer1. After
> > stopping tcpdump it keeps working. Looking...
>
> I found it. :)
> The problem is the following code:
> [drivers/net/wireless/ath9k/main.c, ath9k_configure_filter(), line 2399]
>
> if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
> if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
> memcpy(sc->curbssid, ath_bcast_mac, ETH_ALEN);
> sc->curaid = 0;
> ath9k_hw_write_associd(sc);
> }
> }
>
> On scanning the BSSID is set to the broadcast MAC, but never set back.
>
> Im not sure how to fix it in the cleanest way. I know to less about the handling of multi interface devices. ath9k people can you help please?
>
Yep, that is the problem. But that chunk of code (and the bug) has been there forever,
so am not sure why it is creating a problem now. And it can be fixed by
making use of the scan start/stop mac80211 callbacks.
Thanks a lot !
Sujith
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