Re: [PATCH 6/7] MIPS: SGI-IP27: use generic PCI driver

[Christoph Hellwig]

On Mon, Feb 18, 2019 at 11:58:07AM +0100, Thomas Bogendoerfer wrote:
> This of course will break SH7786. To fix both cases how about making 
> dma_pfn_offset
>
> a signed long ?

Yes, making it signed sounds like a good idea.