On Mon, 2014-10-20 at 14:02 +0200, Johannes Berg wrote:
> On Mon, 2014-10-20 at 16:26 +0530, Sujith Manoharan wrote:
>
> > Here is a trace log showing the issue - cfg80211_scan_done()
> > is called after NETDEV_DOWN is received in cfg80211_netdev_notifier_call().
> >
> > http://pastebin.com/raw.php?i=AJqFLtZR
> >
> > I've removed entries to show the issue clearly, if
> > you need the full trace, please let me know.
>
> Ah, so mac80211 is also delaying and not doing the right thing ... need
> to look at that.
Maybe we need something like this:
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index af0d094b2f2f..45b74ab1c59d 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -985,7 +985,6 @@ void ieee80211_scan_cancel(struct ieee80211_local *local)
drv_cancel_hw_scan(local,
rcu_dereference_protected(local->scan_sdata,
lockdep_is_held(&local->mtx)));
- goto out;
}
/*
johannes
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