linux-kernel - Re: [PATCH] dmaengine: at_hdmac: use dma

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]

Message-ID: <4D2B07D0.5050602@atmel.com>
Date:	Mon, 10 Jan 2011 14:21:20 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	dan.j.williams@...el.com
CC:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dmaengine: at_hdmac: use dma_address to program DMA hardware

Le 15/12/2010 18:50, Nicolas Ferre :
> In atc_prep_slave_sg() function we use dma_address field of scatterlist with
> sg_dma_address() macro instead of sg_phys(). DMA address is already computed
> by dma_map_sg() or another mapping function in calling driver.

Ping?

> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---
>  drivers/dma/at_hdmac.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
> index ea0ee81..ee7dacd 100644
> --- a/drivers/dma/at_hdmac.c
> +++ b/drivers/dma/at_hdmac.c
> @@ -670,7 +670,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
>  			if (!desc)
>  				goto err_desc_get;
>  
> -			mem = sg_phys(sg);
> +			mem = sg_dma_address(sg);
>  			len = sg_dma_len(sg);
>  			mem_width = 2;
>  			if (unlikely(mem & 3 || len & 3))
> @@ -712,7 +712,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
>  			if (!desc)
>  				goto err_desc_get;
>  
> -			mem = sg_phys(sg);
> +			mem = sg_dma_address(sg);
>  			len = sg_dma_len(sg);
>  			mem_width = 2;
>  			if (unlikely(mem & 3 || len & 3))


-- 
Nicolas Ferre
--
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/