[PATCH] usb: ehci: make HC see up-to-date qh/qtd descriptor ASAP

Ming Lei ming.lei at canonical.com
Tue Aug 30 20:56:41 EDT 2011


On Wed, Aug 31, 2011 at 1:54 AM, Will Deacon <will.deacon at arm.com> wrote:

> Although this doesn't have anything to do with ordering; it's all to do with
> immediacy so I think we should try to avoiding using the term `barrier'. If
> this can be made part of the coherent DMA API, that might be the best place
> for it (I can't think of any other areas this is needed given that the
> streaming DMA API and I/O accessors already deal with it).

Agree too.


thanks,
--
Ming Lei



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