linux-kernel - Re: [PATCH v4 2/2] Add Intel LGM soc DMA 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:   Thu, 9 Jul 2020 14:09:14 +0300
From:   Andy Shevchenko <andriy.shevchenko@...el.com>
To:     Amireddy Mallikarjuna reddy <mallikarjunax.reddy@...ux.intel.com>
Cc:     dmaengine@...r.kernel.org, vkoul@...nel.org,
        devicetree@...r.kernel.org, robh+dt@...nel.org,
        linux-kernel@...r.kernel.org, chuanhua.lei@...ux.intel.com,
        cheol.yong.kim@...el.com, qi-ming.wu@...el.com,
        malliamireddy009@...il.com
Subject: Re: [PATCH v4 2/2] Add Intel LGM soc DMA support.

On Thu, Jul 09, 2020 at 02:01:06PM +0800, Amireddy Mallikarjuna reddy wrote:
> Add DMA controller driver for Lightning Mountain(LGM) family of SoCs.
> 
> The main function of the DMA controller is the transfer of data from/to any
> DPlus compliant peripheral to/from the memory. A memory to memory copy
> capability can also be configured.
> 
> This ldma driver is used for configure the device and channnels for data
> and control paths.

> +#include "../virt-dma.h"

I didn't find any evidence this driver utilizes virt-dma API in full.
For example, there is a virt_dma_desc structure and descriptor management around it.
Why don't you use it?

-- 
With Best Regards,
Andy Shevchenko