linux-kernel - Re: [PATCH v5] driver core: enforce device_lock for driver_match

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Message-ID: <2c9b4cb9-a206-4dcd-83bb-4061065a539b@sirena.org.uk>
Date: Tue, 20 Jan 2026 13:48:13 +0000
From: Mark Brown <broonie@...nel.org>
To: Gui-Dong Han <hanguidong02@...il.com>
Cc: gregkh@...uxfoundation.org, rafael@...nel.org, dakr@...nel.org,
	linux-kernel@...r.kernel.org, baijiaju1990@...il.com,
	Qiu-ji Chen <chenqiuji666@...il.com>, Aishwarya.TCV@....com
Subject: Re: [PATCH v5] driver core: enforce device_lock for
 driver_match_device()

On Tue, Jan 20, 2026 at 09:30:53PM +0800, Gui-Dong Han wrote:
> On Tue, Jan 20, 2026 at 9:22 PM Mark Brown <broonie@...nel.org> wrote:

> > I'm seeing boot hangs on Arm Juno in next/pending-fixes which bisect to
> > this commit.  The boot grinds to a halt near the end of boot:

> I verified this on x86 without issues, but it seems I missed this
> regression on Arm platforms. I will investigate the cause of this hang
> immediately.

Thanks.  It's not all platforms - in particular none of the main
emulation platforms triggered the issue unfortunately.  It seems to be a
fairly limited subset of physical platforms that are impacted.

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