linux-kernel - Re: [PATCH v2 0/6] KEXEC_SIG with appended signature

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Date:   Wed, 8 Dec 2021 20:50:54 -0500
From:   Nayna <nayna@...ux.vnet.ibm.com>
To:     Michal Suchanek <msuchanek@...e.de>, keyrings@...r.kernel.org
Cc:     kexec@...ts.infradead.org, Philipp Rudo <prudo@...hat.com>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        Rob Herring <robh@...nel.org>, linux-s390@...r.kernel.org,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Jessica Yu <jeyu@...nel.org>, linux-kernel@...r.kernel.org,
        David Howells <dhowells@...hat.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Paul Mackerras <paulus@...ba.org>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org,
        Frank van der Linden <fllinden@...zon.com>,
        Thiago Jung Bauermann <bauerman@...ux.ibm.com>,
        Daniel Axtens <dja@...ens.net>, buendgen@...ibm.com,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Baoquan He <bhe@...hat.com>, linux-crypto@...r.kernel.org,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org
Subject: Re: [PATCH v2 0/6] KEXEC_SIG with appended signature


On 11/25/21 13:02, Michal Suchanek wrote:
> Hello,

Hi Michael,

>
> This is resend of the KEXEC_SIG patchset.
>
> The first patch is new because it'a a cleanup that does not require any
> change to the module verification code.
>
> The second patch is the only one that is intended to change any
> functionality.
>
> The rest only deduplicates code but I did not receive any review on that
> part so I don't know if it's desirable as implemented.
>
> The first two patches can be applied separately without the rest.

Patch 2 fails to apply on v5.16-rc4. Can you please also include git 
tree/branch while posting the patches ?

Secondly, I see that you add the powerpc support in Patch 2 and then 
modify it again in Patch 5 after cleanup. Why not add the support for 
powerpc after the clean up ? This will reduce some rework and also 
probably simplify patches.

Thanks & Regards,

      - Nayna