netdev - Re: [PATCH v2 6/9] ethernet: stmicro: Simplify PCI devres usage

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Message-ID: <ZsXVuq2jthHoTHPO@smile.fi.intel.com>
Date: Wed, 21 Aug 2024 14:55:38 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Philipp Stanner <pstanner@...hat.com>
Cc: Jonathan Corbet <corbet@....net>, Jens Axboe <axboe@...nel.dk>,
	Wu Hao <hao.wu@...el.com>, Tom Rix <trix@...hat.com>,
	Moritz Fischer <mdf@...nel.org>, Xu Yilun <yilun.xu@...el.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Alvaro Karsz <alvaro.karsz@...id-run.com>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Eugenio Pérez <eperezma@...hat.com>,
	Richard Cochran <richardcochran@...il.com>,
	Mark Brown <broonie@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Damien Le Moal <dlemoal@...nel.org>, Hannes Reinecke <hare@...e.de>,
	Keith Busch <kbusch@...nel.org>, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
	linux-fpga@...r.kernel.org, linux-gpio@...r.kernel.org,
	netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
	virtualization@...ts.linux.dev
Subject: Re: [PATCH v2 6/9] ethernet: stmicro: Simplify PCI devres usage

On Wed, Aug 21, 2024 at 11:36:36AM +0200, Philipp Stanner wrote:
> On Wed, 2024-08-21 at 11:14 +0300, Andy Shevchenko wrote:
> > On Wed, Aug 21, 2024 at 10:19 AM Philipp Stanner
> > <pstanner@...hat.com> wrote:

...

> > > -       for (i = 0; i < PCI_STD_NUM_BARS; i++) {
> > > -               if (pci_resource_len(pdev, i) == 0)
> > > -                       continue;
> > > -               pcim_iounmap_regions(pdev, BIT(i));
> > 
> > Here is the BARx, which contradicts the probe :-)
> 
> I'm not sure what should be done about it. The only interesting
> question is whether the other code with pcim_iomap_regions(... BIT(i)
> does also only grap BAR 0.
> In that case the driver wouldn't even be knowing what its own hardware
> is / does, though.

I think your patch does the right thing already.

> > > -               break;
> > > -       }

-- 
With Best Regards,
Andy Shevchenko