linux-kernel - Re: [PATCH] pci: altera: remove unused 'node' variable

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Message-ID: <20250613154111.GA961350@bhelgaas>
Date: Fri, 13 Jun 2025 10:41:11 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
Cc: linux-kernel@...r.kernel.org, tglx@...utronix.de,
	Arnd Bergmann <arnd@...db.de>,
	Manivannan Sadhasivam <mani@...nel.org>
Subject: Re: [PATCH] pci: altera: remove unused 'node' variable

On Wed, Jun 11, 2025 at 12:43:30PM +0200, Jiri Slaby (SUSE) wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> This variable is only used when CONFIG_OF is enabled:
> 
> drivers/pci/controller/pcie-altera.c: In function 'altera_pcie_init_irq_domain':
> drivers/pci/controller/pcie-altera.c:855:29: error: unused variable 'node' [-Werror=unused-variable]
>   855 |         struct device_node *node = dev->of_node;
> 
> Use dev_fwnode() in place of of_node_to_fwnode() to avoid this.
> 
> ----
> I checked the other PCI host bridge drivers as well, this is the
> only one with that problem.
> 
> Fixes: bbc94e6f72f2 ("PCI: Switch to irq_domain_create_linear()")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Reviewed-by: Jiri Slaby <jirislaby@...nel.org>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>

Applied by Mani to pci/controller/altera.  I amended the subject to
match history.

> ---
>  drivers/pci/controller/pcie-altera.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c
> index 0fc77176a52e..3dbb7adc421c 100644
> --- a/drivers/pci/controller/pcie-altera.c
> +++ b/drivers/pci/controller/pcie-altera.c
> @@ -852,10 +852,9 @@ static void aglx_isr(struct irq_desc *desc)
>  static int altera_pcie_init_irq_domain(struct altera_pcie *pcie)
>  {
>  	struct device *dev = &pcie->pdev->dev;
> -	struct device_node *node = dev->of_node;
>  
>  	/* Setup INTx */
> -	pcie->irq_domain = irq_domain_create_linear(of_fwnode_handle(node), PCI_NUM_INTX,
> +	pcie->irq_domain = irq_domain_create_linear(dev_fwnode(dev), PCI_NUM_INTX,
>  					&intx_domain_ops, pcie);
>  	if (!pcie->irq_domain) {
>  		dev_err(dev, "Failed to get a INTx IRQ domain\n");
> -- 
> 2.49.0
>