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SubjectRe: DMA API issues
On Fri, Jun 18, 2004 at 03:24:45PM -0500, James Bottomley wrote:
> On Fri, 2004-06-18 at 15:14, Benjamin Herrenschmidt wrote:
> > I wanted to do just that a while ago, and ended up doing things a bit
> > differently, but still, I agree that would help. The thing is, you
> > can do that in your platform code. just use the platform data pointer
> > in struct device to stuff a ptr to the structure with your "ops"
> Yes, we do this on parisc too. We actually have a hidden method pointer
> (per platform) and cache the iommu (we have more than one) accessors in
> platform_data.

Except that platform_data already has multiple other uses, especially for
platform devices.

Russell King
Linux kernel 2.6 ARM Linux -
maintainer of: 2.6 PCMCIA -
2.6 Serial core
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