linux-kernel - Re: [PATCH v9 8/9] thermal: Add PCIe cooling driver

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Message-ID: <20241115172832.GA2044695@bhelgaas>
Date: Fri, 15 Nov 2024 11:28:32 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: Lukas Wunner <lukas@...ner.de>
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Rob Herring <robh@...nel.org>, Krzysztof Wilczy??ski <kw@...ux.com>,
	"Maciej W . Rozycki" <macro@...am.me.uk>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Alexandru Gagniuc <mr.nuke.me@...il.com>,
	Krishna chaitanya chundru <quic_krichai@...cinc.com>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	"Rafael J . Wysocki" <rafael@...nel.org>, linux-pm@...r.kernel.org,
	Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>,
	linux-kernel@...r.kernel.org, Amit Kucheria <amitk@...nel.org>,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: Re: [PATCH v9 8/9] thermal: Add PCIe cooling driver

On Wed, Nov 13, 2024 at 09:44:05AM +0100, Lukas Wunner wrote:
> On Fri, Oct 18, 2024 at 05:47:54PM +0300, Ilpo Järvinen wrote:
> >  static void pcie_bwnotif_remove(struct pcie_device *srv)
> >  {
> > +	struct pcie_bwctrl_data *data = srv->port->link_bwctrl;
> > +
> > +	if (data->cdev)
> > +		pcie_cooling_device_unregister(data->cdev);
> > +
> 
> Just noting a minor nit here in what is now commit 7206400cda87
> on pci/bwctrl:  The NULL pointer check for data->cdev seems
> redundant as pcie_cooling_device_unregister() just calls
> thermal_cooling_device_unregister(), which in turn contains
> this at the top:
> 
> 	if (!cdev)
> 		return;

Thanks, I dropped this NULL pointer check locally.