Re: [PATCH] fix ips driver compile problems

[Alan Cox]

>    This patch has been floating inside IBM for a bit, but it appears 
> that no one passed it back up to you, yet.  I don't know who wrote it, 
> but it applies to 2.5.8 and the ServeRAID driver works just fine with it 
> applied.  Without it, the driver fails to compile.

>   
> -#error Please convert me to Documentation/DMA-mapping.txt

See Documentation/DMA-mapping.txt

> -   scb->scb_busaddr = VIRT_TO_BUS(scb);
> +   scb->scb_busaddr = virt_to_phys(scb);

Nope.. thats not what Documentation/DMA-mapping.txt says

It needs updating to use the pci DMA API. That also conveniently should
put you close to having it work cross platform