netdev - RE: pull-request: mac80211 2021-01-18.2

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Date:   Sun, 24 Jan 2021 09:12:48 +0000
From:   "Peer, Ilan" <ilan.peer@...el.com>
To:     Johannes Berg <johannes@...solutions.net>,
        Hans de Goede <hdegoede@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "Coelho, Luciano" <luciano.coelho@...el.com>
Subject: RE: pull-request: mac80211 2021-01-18.2

> -----Original Message-----
> From: Johannes Berg <johannes@...solutions.net>
> Sent: Sunday, January 24, 2021 00:16
> To: Hans de Goede <hdegoede@...hat.com>; netdev@...r.kernel.org
> Cc: linux-wireless@...r.kernel.org; Peer, Ilan <ilan.peer@...el.com>;
> Coelho, Luciano <luciano.coelho@...el.com>
> Subject: Re: pull-request: mac80211 2021-01-18.2
> 
> On Sat, 2021-01-23 at 22:31 +0100, Hans de Goede wrote:
> >
> > So I'm afraid that I have some bad news about this patch, it fixes the
> > RCU warning which I reported:
> >
> > https://lore.kernel.org/linux-wireless/20210104170713.66956-1-hdegoede
> > @redhat.com/
> >
> > But it introduces a deadlock. See:
> >
> > https://lore.kernel.org/linux-wireless/d839ab62-e4bc-56f0-d861-f172bf1
> > 9c4b3@...hat.com/
> >
> > for details. Note we really should fix this new deadlock before 5.11
> > is released. This is worse then the RCU warning which this patch fixes.
> 
> Ouch. Thanks for the heads-up. I guess I'll revert both patches for now,
> unless we can quickly figure out a way to get all these paths in order.
> 

Thanks Hans and Johannes for handling this. I'll try to come up with a solution.

Regards,

Ilan.