netdev - Re: hdev->le_scan_disable - WARNING: possible circular locking dependency detected

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Message-ID: <Y7/Hj7EXceqp54UU@francesco-nb.int.toradex.com>
Date:   Thu, 12 Jan 2023 09:40:47 +0100
From:   Francesco Dolcini <francesco@...cini.it>
To:     Francesco Dolcini <francesco@...cini.it>
Cc:     linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        Zhengping Jiang <jiangzp@...gle.com>,
        Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Marcel Holtmann <marcel@...tmann.org>
Subject: Re: hdev->le_scan_disable - WARNING: possible circular locking
 dependency detected

On Tue, Jan 03, 2023 at 09:31:24PM +0100, Francesco Dolcini wrote:
> Hello all,
> When enabling BT discovery I have this WARNING.
> 
> Linux 6.0.16, ARM, i.MX6ULL, with a Marvell BT device.

Linux 6.1.4 is fine.
I'm not planning to bisect it since I can just move to the new kernel.

> This looks like a regression on Linux 6.0, however I had no way to try
> to bisect this yet. Any suggestion?
> 
> [  493.824758] ======================================================
> [  493.831012] WARNING: possible circular locking dependency detected
> [  493.837261] 6.0.16-6.1.0-devel+git.29e1bc6a55de #1 Not tainted


Francesco