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SubjectRe: [PATCH] ixp4xx_crypto panic with fragmented packets in scatterlist
On Thu, Feb 26, 2009 at 11:20:26PM +0000, Russell King - ARM Linux wrote:
> I don't think you can use chained scatterlists unless the architecture
> supports it. It's not a case that you have to flatten the chaining
> before passing it over to the arch - it seems you're not allowed to
> create a chained scatterlist in the first place:
> static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
> struct scatterlist *sgl)
> {
> BUG();
> #endif

That's why we don't use sg_chain. The chaining is completely
internal to the crypto API (or at least it's supposed to be).

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