linux-kernel - Re: [PATCH 6/8 resend] dw_dmac: Mark all tx_descriptors with DMA_CRTL

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Message-ID: <AANLkTimhKCxD=9-+gGL41vo+FkaKUFwi6jvgEcGz_VQw@mail.gmail.com>
Date:	Mon, 28 Feb 2011 20:34:02 +0530
From:	viresh kumar <viresh.linux@...il.com>
To:	Sergei Shtylyov <sshtylyov@...sta.com>
Cc:	Viresh Kumar <viresh.kumar@...com>, linus.walleij@...ricsson.com,
	shiraz.hashim@...com, amit.goel@...com,
	linux-kernel@...r.kernel.org, armando.visconti@...com,
	dan.j.williams@...el.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 6/8 resend] dw_dmac: Mark all tx_descriptors with
 DMA_CRTL_ACK after xfer finish

On 2/28/11, Sergei Shtylyov <sshtylyov@...sta.com> wrote:
> Hello.
>
> On 28-02-2011 13:41, Viresh Kumar wrote:
>
>> dwc_desc_get checks all descriptors for DMA_CTRL_ACK before allocating
>> them for
>> transfers. And descriptors are not marked with DMA_CRTL_ACK after transfer
>> finishes. Thus descriptor once used is not usable again. This patch marks
>> descriptors with DMA_CRTL_ACK after dma xfer finishes
>
>> Signed-off-by: Viresh Kumar<viresh.kumar@...com>
>> ---
>>   drivers/dma/dw_dmac.c |    7 +++++++
>>   1 files changed, 7 insertions(+), 0 deletions(-)
>
>> diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
>> index c40b89f..01f783d 100644
>> --- a/drivers/dma/dw_dmac.c
>> +++ b/drivers/dma/dw_dmac.c
>> @@ -196,6 +196,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc,
>> struct dw_desc *desc)
>>   	dma_async_tx_callback		callback;
>>   	void				*param;
>>   	struct dma_async_tx_descriptor	*txd =&desc->txd;
>> +	struct dw_desc	*child;
>
>     Shouldn't this varaible name be aligned with the above variable names?
>

Should be. Will take care of this while resending this patch series,
after getting all
review comments.

--
viresh
--
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