linux-kernel - Re: [PATCH 1/4] PCI: Add empty stub for pci_register_io

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Message-ID: <20210527215505.GA1433874@bjorn-Precision-5520>
Date:   Thu, 27 May 2021 16:55:05 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     devicetree@...r.kernel.org, Frank Rowand <frowand.list@...il.com>,
        linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-pci@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [PATCH 1/4] PCI: Add empty stub for pci_register_io_range()

On Thu, May 27, 2021 at 02:45:44PM -0500, Rob Herring wrote:
> Add an empty stub for pci_register_io_range() when !CONFIG_PCI. It's needed
> to convert of_pci_range_to_resource() to use IS_ENABLED(CONFIG_PCI).
> 
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: linux-pci@...r.kernel.org
> Signed-off-by: Rob Herring <robh@...nel.org>

Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>

I assume you'll merge these through your tree.

> ---
>  include/linux/pci.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index c20211e59a57..29da7598f8d0 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -1772,6 +1772,10 @@ static inline int pci_request_regions(struct pci_dev *dev, const char *res_name)
>  { return -EIO; }
>  static inline void pci_release_regions(struct pci_dev *dev) { }
>  
> +static inline int pci_register_io_range(struct fwnode_handle *fwnode,
> +					phys_addr_t addr, resource_size_t size)
> +{ return -EINVAL; }
> +
>  static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
>  
>  static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from)
> -- 
> 2.27.0
>