Re: [PATCH 1/4] PCI: Export pci_rebar_get_possible_sizes()

[Bjorn Helgaas <helgaas@kernel.org>]

On Thu, Jan 07, 2021 at 06:50:14PM +0100, Nirmoy Das wrote:
> From: Darren Salt <devspam@moreofthesa.me.uk>
> 
> Export pci_rebar_get_possible_sizes() for use by modular drivers.
> 
> Signed-off-by: Darren Salt <devspam@moreofthesa.me.uk>
> Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>

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

> ---
>  drivers/pci/pci.c   | 1 +
>  drivers/pci/pci.h   | 1 -
>  include/linux/pci.h | 1 +
>  3 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index e578d34095e9..ef80ed451415 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -3579,6 +3579,7 @@ u32 pci_rebar_get_possible_sizes(struct pci_dev *pdev, int bar)
>  	pci_read_config_dword(pdev, pos + PCI_REBAR_CAP, &cap);
>  	return (cap & PCI_REBAR_CAP_SIZES) >> 4;
>  }
> +EXPORT_SYMBOL(pci_rebar_get_possible_sizes);
>  
>  /**
>   * pci_rebar_get_current_size - get the current size of a BAR
> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> index f86cae9aa1f4..640ae7d74fc3 100644
> --- a/drivers/pci/pci.h
> +++ b/drivers/pci/pci.h
> @@ -608,7 +608,6 @@ int acpi_get_rc_resources(struct device *dev, const char *hid, u16 segment,
>  			  struct resource *res);
>  #endif
>  
> -u32 pci_rebar_get_possible_sizes(struct pci_dev *pdev, int bar);
>  int pci_rebar_get_current_size(struct pci_dev *pdev, int bar);
>  int pci_rebar_set_size(struct pci_dev *pdev, int bar, int size);
>  static inline u64 pci_rebar_size_to_bytes(int size)
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index 22207a79762c..9999040cfad9 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -1226,6 +1226,7 @@ void pci_update_resource(struct pci_dev *dev, int resno);
>  int __must_check pci_assign_resource(struct pci_dev *dev, int i);
>  int __must_check pci_reassign_resource(struct pci_dev *dev, int i, resource_size_t add_size, resource_size_t align);
>  void pci_release_resource(struct pci_dev *dev, int resno);
> +u32 pci_rebar_get_possible_sizes(struct pci_dev *pdev, int bar);
>  int __must_check pci_resize_resource(struct pci_dev *dev, int i, int size);
>  int pci_select_bars(struct pci_dev *dev, unsigned long flags);
>  bool pci_device_is_present(struct pci_dev *pdev);
> -- 
> 2.29.2
>