Re: [PATCH 5/7] zram: use crypto api to check alg availability

From: Herbert Xu
Date: Fri May 27 2016 - 04:44:06 EST

On Fri, May 27, 2016 at 05:27:44PM +0900, Minchan Kim wrote:
> Yes, it might be trivial to adding new "string" into the backend array
> if we consider frequency of adding new compressoin algorithm in linux
> but it would be better if we can get names of supported compression
> algorithm name by crypto API.
> If it's not good idea or something hard to implement, let's go with
> hardcoding.
> Herbert, Could you give us thought?

It is fundamentally impossible to get a list of all *potential*
algorithms if you allow loadable modules. By definition someone
could load a new module and thus introduce a new algorithm.

Given a specific algorithm name you could determine whether it
is present on the system.

Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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