On Wed, Mar 13, 2013 at 5:27 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> According to resource pointer find out if the resource is some type resource
> like bridge, sriov, or std.
>
> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
> ---
> include/linux/pci.h | 23 +++++++++++++++++++++++
> 1 file changed, 23 insertions(+)
>
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index 127a856..efb348b 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -92,6 +92,29 @@ enum {
> DEVICE_COUNT_RESOURCE = PCI_NUM_RESOURCES,
> };
>
> +static inline bool is_pci_std_resource_idx(int i)
> +{
> + return i >= PCI_STD_RESOURCES && i <= PCI_STD_RESOURCE_END;
> +}
> +
> +static inline bool is_pci_rom_resource_idx(int i)
> +{
> + return i == PCI_ROM_RESOURCE;
> +}
> +
> +static inline bool is_pci_iov_resource_idx(int i)
> +{
> +#ifdef CONFIG_PCI_IOV
> + return i >= PCI_IOV_RESOURCES && i <= PCI_IOV_RESOURCE_END;
> +#endif
> + return false;
> +}
> +
> +static inline bool is_pci_bridge_resource_idx(int i)
> +{
> + return i >= PCI_BRIDGE_RESOURCES && i <= PCI_BRIDGE_RESOURCE_END;
> +}
> +
> typedef int __bitwise pci_power_t;
>
> #define PCI_D0 ((pci_power_t __force) 0)
1) I don't like adding more "_idx()" interfaces.
2) The only one of these that's even used is "is_pci_bridge_resource_idx()"
3) I think adding a wrapper struct with a "type" or "flags" field
would make this trivial, e.g., "pres->flags & PCI_RESOURCE_WINDOW" or
something.
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