linux-kernel - Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}

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Date:	Mon, 25 Apr 2016 12:10:04 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Christoph Hellwig <hch@...radead.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	linux-renesas-soc@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
	iommu@...ts.linux-foundation.org, robin.murphy@....com,
	geert+renesas@...der.be, Linus Walleij <linus.walleij@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org
Subject: Re: [PATCH v5 3/9] dma-mapping: add dma_{map,unmap}_resource

On Mon, Apr 25, 2016 at 04:26:19PM +0200, Niklas S?derlund wrote:
> I have followed the call path from the usage in 
> drivers/dma/sh/rcar-dmac.c and made sure the dma_addr_t is not used in a 
> bad way.

The dma-debug routines are called from the generic code in
include/linux/dma-mapping.h, and from my reading of the other patches
in your series you are calling it for these as well.