linux-kernel - Re: [PATCH v2 1/5] DMA-API: Clarify physical/bus address distinction

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Message-ID: <20140508092428.GB27651@kroah.com>
Date:	Thu, 8 May 2014 02:24:28 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-doc@...r.kernel.org,
	Joerg Roedel <joro@...tes.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Liviu Dudau <Liviu.Dudau@....com>,
	linux-kernel@...r.kernel.org,
	James Bottomley <jbottomley@...allels.com>,
	linux-pci@...r.kernel.org, David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH v2 1/5] DMA-API: Clarify physical/bus address distinction

On Tue, May 06, 2014 at 04:48:19PM -0600, 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.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Thanks for cleaning this up.

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