Hi Stephan,
> -----Original Message-----
> From: Stephan Mueller [mailto:[email protected]]
> Sent: Saturday, March 19, 2016 6:59 PM
> To: Tudor-Dan Ambarus
> Cc: [email protected]; [email protected]; linux-
> [email protected]; Horia Ioan Geanta Neag
> Subject: Re: [PATCH 10/10] crypto: caam - add support for RSA algorithm
>
> > +void rsa_free_key(struct rsa_raw_key *key)
> > +{
> > + kzfree(key->d);
> > + key->d = NULL;
> > +
> > + kfree(key->e);
> > + key->e = NULL;
> > +
> > + kfree(key->n);
> > + key->n = NULL;
> > +
> > + key->n_sz = 0;
> > + key->e_sz = 0;
> > +}
>
> As you implement raw key support for use in other drivers, shouldn't that
> function go into some helper file like free_mpis().
> > +
[ta] I should also add an rsa_free_coherent_key(struct device *dev, struct
rsa_raw_key *key), for those implementations that use the DMA-coherent API.
> > +static int caam_rsa_dec(struct akcipher_request *req)
> > +{
> > + struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
> > + struct rsa_raw_ctx *ctx = akcipher_tfm_ctx(tfm);
> > + struct rsa_raw_key *key = &ctx->key;
> > + struct device *jrdev = ctx->dev;
> > + struct rsa_edesc *edesc = NULL;
> > + size_t desclen = sizeof(struct rsa_priv_f1_desc);
> > + int ret;
> > +
> > + if (unlikely(!key->n || !key->d))
> > + return -EINVAL;
> > +
> > + if (req->dst_len < key->n_sz) {
> > + req->dst_len = key->n_sz;
> > + return -EOVERFLOW;
> > + }
> > +
> > + /* Allocate extended descriptor. */
> > + edesc = rsa_edesc_alloc(req, desclen);
> > + if (IS_ERR(edesc))
> > + return PTR_ERR(edesc);
> > +
> > + /* Initialize Job Descriptor. */
> > + ret = init_rsa_priv_f1_desc(req, edesc);
> > + if (ret)
> > + return ret;
>
> Same here, kfree?
[ta] Sure, thanks.
> > +
> > + ret = caam_jr_enqueue(jrdev, edesc->hw_desc, rsa_priv_f1_done, req);
> > + if (!ret) {
> > + ret = -EINPROGRESS;
>
> dto
>
[ta] resources are freed on rsa_priv_f1_done callback.
> > +static struct akcipher_alg rsa = {
>
> can you please name that something else, like caam_rsa? It is a real hassle
> when searching some symbol and I get such a generic name.
[ta] ok.
Thank you for the review!
ta
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