linux-kernel - Re: [PATCH v2 02/17] firmware: arm_scmi: Reduce the scope of protocols mutex

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Message-ID: <20260119112154.0000029d@huawei.com>
Date: Mon, 19 Jan 2026 11:21:54 +0000
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: Cristian Marussi <cristian.marussi@....com>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<arm-scmi@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
	<sudeep.holla@....com>, <james.quinlan@...adcom.com>, <f.fainelli@...il.com>,
	<vincent.guittot@...aro.org>, <etienne.carriere@...com>,
	<peng.fan@....nxp.com>, <michal.simek@....com>, <dan.carpenter@...aro.org>,
	<d-gole@...com>, <elif.topuz@....com>, <lukasz.luba@....com>,
	<philip.radford@....com>, <souvik.chakravarty@....com>
Subject: Re: [PATCH v2 02/17] firmware: arm_scmi: Reduce the scope of
 protocols mutex

On Wed, 14 Jan 2026 11:46:06 +0000
Cristian Marussi <cristian.marussi@....com> wrote:

> Currently the mutex dedicated to the protection of the list of registered
> protocols is held during all the protocol initialization phase.
> 
> Such a wide locking region is not needed and causes problem when trying to
> initialize notifications from within a protocol initialization routine.
> 
> Reduce the scope of the protocol mutex.
> 
> Signed-off-by: Cristian Marussi <cristian.marussi@....com>
I haven't checked carefully that the new scope is appropriate but
as a change in of itself, the code is correct and clean.
With that in mind.
Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>