Re: [v3 PATCH 0/8] crypto: Convert all AEAD users to new interface

Herbert Xu
2015-05-27T08:39:11Z

On Wed, May 27, 2015 at 10:15:50AM +0200, Johannes Berg wrote:
>
> Do you think it'd be feasible at all to somehow override the
> aead_request_set_crypt() and aead_request_set_ad() functions or so to do
> something that works on older kernels (and thus older crypto subsystems)
> or do you think I just shouldn't bother looking at that and just add
> ifdefs to "undo" your changes in this series on older kernels?

Another option is to backport the new interface to the older kernel.

You only need something like

https://patchwork.kernel.org/patch/6452601/

for the older kernel to support the new interface along with the
old interface.

Note that this patch itself won't be good enough because I have since
removed cryptoff. But it illustrates the amount of code you need.

Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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