linux-kernel - Re: [PATCH v2 10/14] dma: edma: Simplify direction configuration in edma_config

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Date:	Fri, 11 Apr 2014 14:57:48 -0500
From:	Joel Fernandes <joelf@...com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>, <dan.j.williams@...el.com>,
	<vinod.koul@...el.com>, <nsekhar@...com>
CC:	<dmaengine@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>,
	<davinci-linux-open-source@...ux.davincidsp.com>,
	<mporter@...aro.org>
Subject: Re: [PATCH v2 10/14] dma: edma: Simplify direction configuration
 in edma_config_pset()

On 04/11/2014 01:39 AM, Peter Ujfalusi wrote:
> On 04/11/2014 01:40 AM, Joel Fernandes wrote:
>> On 04/01/2014 08:06 AM, Peter Ujfalusi wrote:
>>> We only support DEV_TO_MEM or MEM_TO_DEV directions with edma driver and the
>>> check for the direction has been already done in the function calling
>>> edma_config_pset().
>>> The error reporting is redundant and also the "else if ()" can be removed.
>>>
>>
>> NAK. Please don't do this. I have been working on MEM_TO_MEM support as
>> well so leave it as it is for future.
> 
> Sure. It is still valid to say that the error else {} will never going to
> happen since you have the same check in the calling function and they already
> filtered the non implemented direction.
> 

That's true. Though the patch removes the else if which would mean more
work later ;)

> I'll leave this out from v3.

Thanks.

Regards,
-Joel

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