Aneesh,

I'm not sure why we need this patch.

It seems to be moving the initialisation of some global variables into
init functions from the definitions.  And renames some things.

> diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
> index 41503d7d53a1..3759df52bd67 100644
> --- a/arch/powerpc/kernel/pci_64.c
> +++ b/arch/powerpc/kernel/pci_64.c
> @@ -38,7 +38,7 @@
>   * ISA drivers use hard coded offsets.  If no ISA bus exists nothing
>   * is mapped on the first 64K of IO space
>   */
> -unsigned long pci_io_base = ISA_IO_BASE;
> +unsigned long pci_io_base;
>  EXPORT_SYMBOL(pci_io_base);
>  
>  static int __init pcibios_init(void)
> @@ -47,6 +47,7 @@ static int __init pcibios_init(void)
>  
>       printk(KERN_INFO "PCI: Probing PCI hardware\n");
>  
> +     pci_io_base = ISA_IO_BASE;

Did you mean to change this in this patch?  This seems to be a random
change in pci code.

Mikey
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