Re: HMAC broken on s390

From: Herbert Xu
Date: Mon Dec 03 2007 - 17:09:24 EST


On Mon, Dec 03, 2007 at 02:31:40PM +0100, Jan Glauber wrote:
> Hi Herbert,
>
> commit 788fefa33b0b50581585925c53c230a36af35d0e in cryptodev breaks hmac
> on s390 du to the usage of sg_chain():
>
> static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
> struct scatterlist *sgl)
> {
> #ifndef ARCH_HAS_SG_CHAIN
> BUG();
> #endif
>
> ARCH_HAS_SG_CHAIN is false for s390 (and also for some other arch's).
>
> What should we do with this?

Looks like we took a step backwards because the chaining I had
before worked on all architectures :)

I suppose either we'll have to do our own chaining again or implement
it for all architectures. I'll look into this.

Thanks,
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