Re: [PATCH v3 1/4] DMA-API: Clarify physical/bus address distinction

From: James Bottomley
Date: Fri May 09 2014 - 10:09:47 EST


On Fri, 2014-05-09 at 08:12 +0200, Arnd Bergmann wrote:
> On Thursday 08 May 2014 14:48:54 Bjorn Helgaas wrote:
> > The DMA-API documentation sometimes refers to "physical addresses" when it
> > really means "bus addresses." Sometimes these are identical, but they may
> > be different if the bridge leading to the bus performs address translation.
> > Update the documentation to use "bus address" when appropriate.
> >
> > Also, consistently capitalize "DMA", use parens with function names, use
> > dev_printk() in examples, and reword a few sections for clarity.
> >
> > No functional change; documentation changes only.
> >
> > Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
>
> Looks great!
>
> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>

Yes, from me too (probably only patches 1-2, since that's only what I
directly wrote originally); thanks for listening to the arguments and
persevering.

Acked-by: James Bottomley <jbottomley@xxxxxxxxxxxxx>

James

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