From: Fabio Estevam <festevam@gmail.com>
Subject: Re: [PATCH] crypto: mxs-dcp: Add empty hash export and import
Date: Tue, 16 Jan 2018 15:28:18 -0200
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Cc: Herbert Xu <herbert@gondor.apana.org.au>,
        Marek Vasut <marex@denx.de>,
        "David S. Miller" <davem@davemloft.net>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        linux-crypto@vger.kernel.org,
        linux-kernel <linux-kernel@vger.kernel.org>
To: Kamil Konieczny <k.konieczny@partner.samsung.com>
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Hi Kamil,

On Tue, Jan 16, 2018 at 2:16 PM, Kamil Konieczny
<k.konieczny@partner.samsung.com> wrote:
> Crypto framework will require async hash export/import, so add empty
> functions to prevent OOPS.

Which Oops exactly are you getting?

Just booted 4.14.13 and the mxs-dcp driver does not even probe successfully:

[    2.455404] mxs-dcp 80028000.dcp: Failed to register sha1 hash!
[    2.464042] mxs-dcp: probe of 80028000.dcp failed with error -22