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Date: Sun, 26 Mar 2017 18:05:55 +0200 From: Stephan Müller <smueller@...onox.de> To: Krzysztof Kozlowski <krzk@...nel.org> Cc: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>, Kukjin Kim <kgene@...nel.org>, Javier Martinez Canillas <javier@....samsung.com>, Matt Mackall <mpm@...enic.com>, Herbert Xu <herbert@...dor.apana.org.au>, "David S. Miller" <davem@...emloft.net>, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, linux-crypto@...r.kernel.org, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>, Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net> Subject: Re: [PATCH v3 1/3] crypto: hw_random - Add new Exynos RNG driver 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
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