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

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Message-ID: <b83f6cf001c4e3df97eeaed710b34fda0a08265f.camel@sipsolutions.net>
Date:   Sat, 23 Jan 2021 23:15:50 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Hans de Goede <hdegoede@...hat.com>, netdev@...r.kernel.org
Cc:     linux-wireless@...r.kernel.org, ilan.peer@...el.com,
        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-f172bf19c4b3@redhat.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,
johannes