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Subject: Re: PROBLEM: encryption test failures since "crypto: mxs-dcp - Use
 sg_mapping_iter to copy data"
To:     Christian Eggers <ceggers@arri.de>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        "David S. Miller" <davem@davemloft.net>
Cc:     Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
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From:   Sean Anderson <sean.anderson@seco.com>
Message-ID: <414858de-f279-c5ce-83ca-5c28d6c847b1@seco.com>
Date:   Thu, 27 Jan 2022 12:31:48 -0500
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Hi Christian,

On 1/27/22 12:23 PM, Christian Eggers wrote:
> SoC: i.MX6ULL
> 
> After upgrading from v5.10.65-rt53 to v5.10.73-rt54 I get two additional messages on boot:
> 
> ...
> [ 3.786333] alg: skcipher: ecb-aes-dcp encryption test failed (wrong result) on test vector 0, cfg="two even aligned splits"
> [ 3.789020] alg: skcipher: cbc-aes-dcp encryption test failed (wrong result) on test vector 0, cfg="two even aligned splits"
> [ 3.793741] mxs-dcp 2280000.crypto: mxs_dcp: initialized
> ..
> 
> After reverting the commit
> 
> 2e6d793e1bf0 ("crypto: mxs-dcp - Use sg_mapping_iter to copy data")
> 
> the error messages above disappear again.

Can you try applying the patch in [1] on top of your revert?

--Sean

[1] https://lore.kernel.org/linux-arm-kernel/20210701185638.3437487-1-sean.anderson@seco.com/