Re: [PATCH 4/4] PCI: of: introduce of_pci_verify_node()

[sashiko-bot@kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Medium] The static DT node verification function `of_pci_verify_node()` is mistakenly placed under `#ifdef CONFIG_PCI_DYNAMIC_OF_NODES`, making it a silent no-op on systems that only use statically-defined nodes.
--

--- Patch [4]: [PATCH 4/4] PCI: of: introduce of_pci_verify_node() ---
commit 29170ab92dd207c740eed74438cd2e09bad49131
Author: Alex Elder <elder@riscstar.com>

PCI: of: introduce of_pci_verify_node()

This commit introduces a runtime check to verify that statically-defined
(pre-existing) devicetree nodes for non-bridge PCI endpoints do not
incorrectly contain the device_type = "pci" property. It adds a call to
of_pci_verify_node() during PCI bus device addition to catch these errors.

> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> --- a/drivers/pci/pci.h
> +++ b/drivers/pci/pci.h
> @@ -1265,6 +1265,7 @@ static inline int of_pci_get_equalization_presets(struct device *dev,
>  struct of_changeset;
>  
>  #ifdef CONFIG_PCI_DYNAMIC_OF_NODES
> +void of_pci_verify_node(struct pci_dev *pdev);

[Severity: Medium]
Since the intent is to verify statically-defined devicetree nodes, will
placing this declaration inside the CONFIG_PCI_DYNAMIC_OF_NODES block
accidentally disable the check on platforms that only use static nodes?

If CONFIG_PCI_DYNAMIC_OF_NODES is disabled, this falls back to the empty
stub below, causing the verification to be silently skipped.

>  void of_pci_make_dev_node(struct pci_dev *pdev);
>  void of_pci_remove_node(struct pci_dev *pdev);

[ ... ]

>  #else
> +static inline void of_pci_verify_node(struct pci_dev *pdev) { }
>  static inline void of_pci_make_dev_node(struct pci_dev *pdev) { }

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260807194100.455599-1-elder@riscstar.com?part=4