On Thu, Apr 11, 2013 at 10:13:13AM -0300, Lucas Kannebley Tavares wrote:
> On pseries machines the detection for max_bus_speed should be done
> through an OpenFirmware property. This patch adds a function to perform this
> detection and a hook to perform dynamic adding of the function only for
> pseries.

The crucial detail you didn't mention is that pcibios_root_bridge_prepare()
already exists as a weak function in the PCI code and is called from
pci_create_root_bus().

> diff --git a/arch/powerpc/platforms/pseries/setup.c 
> b/arch/powerpc/platforms/pseries/setup.c
> index 8bcc9ca..15796b5 100644
> --- a/arch/powerpc/platforms/pseries/setup.c
> +++ b/arch/powerpc/platforms/pseries/setup.c
> @@ -430,6 +430,8 @@ static void pSeries_machine_kexec(struct kimage *image)
>  }
>  #endif
>  
> +int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
> +

Don't do that, put it in a header where it belongs.

cheers
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