linux-kernel - Re: [PATCH] ixp4xx_crypto panic with fragmented packets in scatterlist

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Message-ID: <20090226095552.GB5811@n2100.arm.linux.org.uk>
Date:	Thu, 26 Feb 2009 09:55:52 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Karl Hiramoto <karl@...amoto.org>
Cc:	Christian Hohnstaedt <chohnstaedt@...ominate.com>,
	linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.arm.linux.org.uk>
Subject: Re: [PATCH] ixp4xx_crypto panic with fragmented packets in scatterlist

On Wed, Feb 25, 2009 at 04:35:40PM +0100, Karl Hiramoto wrote:
> The attached patch fixes my issue, but am not sure if it is correct or
> will  cause problems else where.

> diff -Naurp linux-2.6.28.7.a/arch/arm/include/asm/scatterlist.h linux-2.6.28.7.b/arch/arm/include/asm/scatterlist.h
> --- linux-2.6.28.7.a/arch/arm/include/asm/scatterlist.h	2009-02-20 23:41:27.000000000 +0100
> +++ linux-2.6.28.7.b/arch/arm/include/asm/scatterlist.h	2009-02-25 16:19:59.000000000 +0100
> @@ -24,4 +24,6 @@ struct scatterlist {
>  #define sg_dma_address(sg)      ((sg)->dma_address)
>  #define sg_dma_len(sg)          ((sg)->length)
>  
> +#define ARCH_HAS_SG_CHAIN
> +

We can't merge this until _all_ of ARM has been fixed for walking
scatterlist chains.
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