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

From: Arnd Bergmann
Date: Fri May 09 2014 - 02:14:55 EST


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>
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