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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 3 Mar 2011 09:15:10 +0530
From:	viresh kumar <viresh.kumar@...com>
To:	"Koul, Vinod" <vinod.koul@...el.com>
Cc:	"dan.j.williams@...el.com" <dan.j.williams@...el.com>,
	Linus WALLEIJ <linus.walleij@...ricsson.com>,
	amitgoel <amit.goel@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Armando VISCONTI <armando.visconti@...com>,
	Shiraz HASHIM <shiraz.hashim@...com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<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 03/03/2011 12:04 AM, Koul, Vinod wrote:
> On Mon, 2011-02-28 at 16:11 +0530, 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;
> Please align this with previous ones....
> 

Will be done

-- 
viresh
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/