linux-kernel - Re: [PATCH v2] pci: bus: only call of_platform_populate() if CONFIG

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Message-ID: <20240708072226.GB3866@thinkpad>
Date: Mon, 8 Jul 2024 12:52:26 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Bert Karwatzki <spasswolf@....de>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	caleb.connolly@...aro.org, bhelgaas@...gle.com,
	amit.pundir@...aro.org, neil.armstrong@...aro.org,
	Lukas Wunner <lukas@...ner.de>, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH v2] pci: bus: only call of_platform_populate() if
 CONFIG_OF is enabled

On Sun, Jul 07, 2024 at 08:38:28PM +0200, Bert Karwatzki wrote:
> If of_platform_populate() is called when CONFIG_OF is not defined this
> leads to spurious error messages of the following type:
>  pci 0000:00:01.1: failed to populate child OF nodes (-19)
>  pci 0000:00:02.1: failed to populate child OF nodes (-19)
> 
> Fixes: 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF nodes of the port node")
> 
> Signed-off-by: Bert Karwatzki <spasswolf@....de>

Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
>  drivers/pci/bus.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
> index e4735428814d..3bab78cc68f7 100644
> --- a/drivers/pci/bus.c
> +++ b/drivers/pci/bus.c
> @@ -350,7 +350,7 @@ void pci_bus_add_device(struct pci_dev *dev)
> 
>  	pci_dev_assign_added(dev, true);
> 
> -	if (pci_is_bridge(dev)) {
> +	if (IS_ENABLED(CONFIG_OF) && pci_is_bridge(dev)) {
>  		retval = of_platform_populate(dev->dev.of_node, NULL, NULL,
>  					      &dev->dev);
>  		if (retval)
> --
> 2.45.2
> 
> Just in case this is needed.
> 
> Bert Karwatzki
> 

-- 
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