Re: [Xen-devel] [PATCH v5 6/9] PCI: Expose pci_load_saved_state for public consumption.

[Bjorn Helgaas <bhelgaas@xxxxxxxxxx>]

On Wed, Dec 3, 2014 at 2:40 PM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx> wrote:
> We have the pci_load_and_free_saved_state, and pci_store_saved_state
> but are missing the functionality to just load the state
> multiple times in the PCI device without having to free/save
> the state.
>
> This patch makes it possible to use this function.
>
> CC: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

I assume you'll merge this whole series through your tree.  Let me
know if you want me to do anything else.

> ---
>  drivers/pci/pci.c   | 5 +++--
>  include/linux/pci.h | 2 ++
>  2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index 625a4ac..f00a9d6 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -1142,8 +1142,8 @@ EXPORT_SYMBOL_GPL(pci_store_saved_state);
>   * @dev: PCI device that we're dealing with
>   * @state: Saved state returned from pci_store_saved_state()
>   */
> -static int pci_load_saved_state(struct pci_dev *dev,
> -                               struct pci_saved_state *state)
> +int pci_load_saved_state(struct pci_dev *dev,
> +                        struct pci_saved_state *state)
>  {
>         struct pci_cap_saved_data *cap;
>
> @@ -1171,6 +1171,7 @@ static int pci_load_saved_state(struct pci_dev *dev,
>         dev->state_saved = true;
>         return 0;
>  }
> +EXPORT_SYMBOL_GPL(pci_load_saved_state);
>
>  /**
>   * pci_load_and_free_saved_state - Reload the save state pointed to by state,
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index 5be8db4..08088cb1 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -1003,6 +1003,8 @@ void __iomem __must_check *pci_platform_rom(struct 
> pci_dev *pdev, size_t *size);
>  int pci_save_state(struct pci_dev *dev);
>  void pci_restore_state(struct pci_dev *dev);
>  struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev);
> +int pci_load_saved_state(struct pci_dev *dev,
> +                        struct pci_saved_state *state);
>  int pci_load_and_free_saved_state(struct pci_dev *dev,
>                                   struct pci_saved_state **state);
>  struct pci_cap_saved_state *pci_find_saved_cap(struct pci_dev *dev, char 
> cap);
> --
> 1.9.3
>

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