linux-kernel - Re: [PATCH] PCI: probe: fix typo: CONFIG_PCI_PWRCTRL -> CONFIG_PCI

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Message-ID: <20251006161447.GA521686@bhelgaas>
Date: Mon, 6 Oct 2025 11:14:47 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Victor Paul <vipoll@...nlining.org>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Lukas Wunner <lukas@...ner.de>,
	Greg KH <gregkh@...uxfoundation.org>,
	Daniel Martin <dmanlfc@...il.com>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] PCI: probe: fix typo: CONFIG_PCI_PWRCTRL ->
 CONFIG_PCI_PWRCTL

On Mon, Oct 06, 2025 at 06:37:14PM +0400, Victor Paul wrote:
> The commit
> 	8c493cc91f3a ("PCI/pwrctrl: Create pwrctrl devices only when CONFIG_PCI_PWRCTRL is enabled")
> introduced a typo, it uses CONFIG_PCI_PWRCTRL while the correct symbol
> is CONFIG_PCI_PWRCTL. As reported by Daniel Martin, it causes device
> initialization failures on some arm boards.
> I encountered it on sm8250-xiaomi-pipa after rebasing from v6.15.8
> to v6.15.11, with the following error:
> [    6.035321] pcieport 0000:00:00.0: Failed to create device link (0x180) with supplier qca6390-pmu for /soc@...cie@...0000/pcie@...ifi@0
> 
> Fix the typo to use the correct CONFIG_PCI_PWRCTL symbol.
> 
> Fixes: 8c493cc91f3a ("PCI/pwrctrl: Create pwrctrl devices only when CONFIG_PCI_PWRCTRL is enabled")
> Cc: stable@...r.kernel.org
> Reported-by: Daniel Martin <dmanlfc@...il.com>
> Closes: https://lore.kernel.org/linux-pci/2025081053-expectant-observant-6268@gregkh/
> Signed-off-by: Victor Paul <vipoll@...nlining.org>

Might this be a stale .config file?

I think 13bbf6a5f065 ("PCI/pwrctrl: Rename pwrctrl Kconfig symbols and
slot module") should have resolved this. 

In the current upstream tree (fd94619c4336 ("Merge tag 'zonefs-6.18-rc1'
of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs"),
git grep "\<CONFIG_PCI_PWRCTL\>" finds nothing at all.

> ---
>  drivers/pci/probe.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index 19010c382864..7e97e33b3fb5 100644
> --- a/drivers/pci/probe.c
> +++ b/drivers/pci/probe.c
> @@ -2508,7 +2508,7 @@ bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *l,
>  }
>  EXPORT_SYMBOL(pci_bus_read_dev_vendor_id);
>  
> -#if IS_ENABLED(CONFIG_PCI_PWRCTRL)
> +#if IS_ENABLED(CONFIG_PCI_PWRCTL)
>  static struct platform_device *pci_pwrctrl_create_device(struct pci_bus *bus, int devfn)
>  {
>  	struct pci_host_bridge *host = pci_find_host_bridge(bus);
> -- 
> 2.51.0
>