netdev - Re: [PATCH net] netlink: disable IRQs for netlink_lock

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Message-Id: <162129120960.10606.6632218946410253940.git-patchwork-notify@kernel.org>
Date:   Mon, 17 May 2021 22:40:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Johannes Berg <johannes@...solutions.net>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        johannes.berg@...el.com,
        syzbot+69ff9dff50dcfe14ddd4@...kaller.appspotmail.com
Subject: Re: [PATCH net] netlink: disable IRQs for netlink_lock_table()

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Mon, 17 May 2021 16:38:09 +0200 you wrote:
> From: Johannes Berg <johannes.berg@...el.com>
> 
> Syzbot reports that in mac80211 we have a potential deadlock
> between our "local->stop_queue_reasons_lock" (spinlock) and
> netlink's nl_table_lock (rwlock). This is because there's at
> least one situation in which we might try to send a netlink
> message with this spinlock held while it is also possible to
> take the spinlock from a hardirq context, resulting in the
> following deadlock scenario reported by lockdep:
> 
> [...]

Here is the summary with links:
  - [net] netlink: disable IRQs for netlink_lock_table()
    https://git.kernel.org/netdev/net/c/1d482e666b8e

You are awesome, thank you!
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