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From: Sudeep Holla <sudeep.holla@arm.com>
To: Cristian Marussi <cristian.marussi@arm.com>,
	Mike Tipton <quic_mdtipton@quicinc.com>
Cc: "Rafael J . Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	<arm-scmi@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Peng Fan <peng.fan@oss.nxp.com>, Peng Fan <peng.fan@nxp.com>
Subject: Re: [PATCH v3] cpufreq: scmi: Skip SCMI devices that aren't used by the CPUs
Date: Wed, 7 May 2025 14:12:36 +0100	[thread overview]
Message-ID: <20250507-analytic-practical-carp-5cddaf@sudeepholla> (raw)
In-Reply-To: <aBtLMYqcnwacGJuy@pluto>

On Wed, May 07, 2025 at 12:59:45PM +0100, Cristian Marussi wrote:
> On Mon, Apr 28, 2025 at 07:47:28AM -0700, Mike Tipton wrote:
> > +static bool scmi_dev_used_by_cpus(struct device *scmi_dev)
> > +{
> > +	struct device_node *scmi_np = dev_of_node(scmi_dev);
> > +	struct device_node *np;
> > +	struct device *cpu_dev;
> > +	int cpu, idx;
> > +
> > +	if (!scmi_np)
> > +		return false;
> > +
> > +	for_each_possible_cpu(cpu) {
> > +		cpu_dev = get_cpu_device(cpu);
> > +		if (!cpu_dev)
> > +			continue;
> > +
> > +		np = dev_of_node(cpu_dev);
> > +
> > +		if (of_parse_phandle(np, "clocks", 0) == scmi_np)
> 
> Shouldn't this, on Success, be released by an of_node_put() (or, BETTER,
> by some OF-related cleanup.h magic...)
> 

Good catch, I missed this.

With the above issue fixed, you can add and post new version:
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>

I will drop this patch now that you need to fix and repost. Also Viresh
may be away, so better to route via his tree when he is back as I can't
take it without his ack. I was holding off my PR for this, but I will
send SCMI PR without this now.

-- 
Regards,
Sudeep


  reply	other threads:[~2025-05-07 13:37 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-28 14:47 [PATCH v3] cpufreq: scmi: Skip SCMI devices that aren't used by the CPUs Mike Tipton
2025-05-06  1:25 ` Mike Tipton
2025-05-06 10:12   ` Sudeep Holla
2025-05-07 11:59 ` Cristian Marussi
2025-05-07 13:12   ` Sudeep Holla [this message]
2025-05-15  3:47     ` Mike Tipton
2025-05-07 13:18   ` Dan Carpenter
2025-05-07 13:27     ` Cristian Marussi

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