Re: [PATCH v3 1/3] crypto: hw_random - Add new Exynos RNG driver

[Stephan Müller]

Am Sonntag, 26. März 2017, 18:01:26 CEST schrieb Krzysztof Kozlowski:

Hi Krzysztof,

> > > +       if (slen < EXYNOS_RNG_SEED_SIZE) {
> > > +               dev_warn(rng->dev, "Seed too short (only %u bytes)\n",
> > > slen); +               return -EINVAL;
> > > +       }
> > 
> > Will it be helpful to print the required seed size?
> 
> It is in /proc/crypto... It is not a problem to print it but isn't that
> redundant?

You also get the information from crypto_user.

See [1] for a user space API.

[1] https://github.com/smuellerDD/libkcapi/commit/
f856e8c655b7e5c53f59ef8c5754ad59b196df08


Ciao
Stephan