linux-kernel - RE: [PATCH 01/11] dmaengine: add context parameter toprep_slave_sgand prep_dma

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Date:	Mon, 06 Feb 2012 23:37:05 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	"Bounine, Alexandre" <Alexandre.Bounine@....com>
Cc:	Russell King <rmk@....linux.org.uk>, dan.j.williams@...el.com,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Jassi Brar <jaswinder.singh@...aro.org>,
	Kumar Gala <galak@...nel.crashing.org>,
	Matt Porter <mporter@...nel.crashing.org>,
	Li Yang <leoli@...escale.com>
Subject: RE: [PATCH 01/11] dmaengine: add context parameter
 toprep_slave_sgand prep_dma_cyclic

On Mon, 2012-02-06 at 09:02 -0800, Bounine, Alexandre wrote:
> 
> What if we introduce another dma_transaction_type like DMA_SLAVE_EXT
> (extended?).
> In this case all devices that adhere to the generic SLAVE interface
> still be
> registered as DMA_SLAVE and those that do not follow generic route use
> DMA_SLAVE_EXT. 
that way it would be channel specific not transaction specific as you
had asked for...?

Again, how does this solve problem of passing parameters while
preventing abuse...

-- 
~Vinod

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