linux-kernel - Re: PROBLEM: encryption test failures since "crypto: mxs-dcp

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Message-ID: <2382032.jE0xQCEvom@localhost.localdomain>
Date:   Thu, 27 Jan 2022 19:09:15 +0100
From:   Christian Eggers <ceggers@...i.de>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Sean Anderson <sean.anderson@...o.com>
CC:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        <linux-crypto@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: PROBLEM: encryption test failures since "crypto: mxs-dcp - Use sg_mapping_iter to copy data"

Hi Sean,

On Thursday, 27 January 2022, 18:31:48 CET, Sean Anderson wrote:
> 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?
with the patch from [1] on top of the reverted 2e6d793e1bf0 there are
no error messages on boot.

regards
Christian

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