Hi Michal,
Johannes and I were checking the channel switch code (namely to see if
implementing the drv_channel_switch op was fine in our case) and we saw
that CSA with non-chanctx drivers seems to be broken.
In commit 4c3ebc56 (mac80211: use chanctx reservation for STA CSA) we
lost this piece of code:
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index eccc849..931330b 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -940,52 +940,70 @@ static void ieee80211_chswitch_work(struct work_struct *work)
[...]
- if (!local->use_chanctx) {
- local->_oper_chandef = sdata->csa_chandef;
- /* Call "hw_config" only if doing sw channel switch.
- * Otherwise update the channel directly
- */
- if (!local->ops->channel_switch)
- ieee80211_hw_config(local, 0);
- else
- local->hw.conf.chandef = local->_oper_chandef;
- }
-
It seems that we're not updating the chandef in non-chanctx drivers. Or
are we missing something?
--
Cheers,
Luca.
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