linux-kernel - Re: [PATCH 0/2] dmaengine: Add scatter-gathered memset support

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:	Fri, 17 Jul 2015 08:22:20 +0200
From:	Ludovic Desroches <ludovic.desroches@...el.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
CC:	Vinod Koul <vinod.koul@...el.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Ludovic Desroches <ludovic.desroches@...el.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	<dmaengine@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 0/2] dmaengine: Add scatter-gathered memset support

On Mon, Jul 06, 2015 at 12:19:22PM +0200, Maxime Ripard wrote:
> Hi Vinod,
> 
> Here is a patch serie that adds a new dmaengine operation for
> scatter-gathered memset.
> 
> Indeed, doing a memset over a discontiguous buffer is quite
> inefficient at the moment, since you have to create and submit each
> chunk separately, which might result in a huge list of transfers,
> while some controllers can handle that just fine.
> 
> Let me know what you think,
> Maxime
> 
> Maxime Ripard (2):
>   dmaengine: Add scatter-gathered memset
>   dmaengine: xdmac: Add scatter gathered memset support
> 

I have forgotten to add it but of course:

Acked-by: Ludovic Desroches <ludovic.desroches@...el.com>

Thanks

>  drivers/dma/at_xdmac.c    | 166 +++++++++++++++++++++++++++++++++++++++++++++-
>  include/linux/dmaengine.h |   5 ++
>  2 files changed, 170 insertions(+), 1 deletion(-)
> 
> -- 
> 2.4.5
> 
--
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/