linux-kernel - Re: [PATCH 2/2] MPI: Fix mpi_powm() when exponent is 0 and the result has no limbs

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Message-ID: <5847.1479987309@warthog.procyon.org.uk>
Date:   Thu, 24 Nov 2016 11:35:09 +0000
From:   David Howells <dhowells@...hat.com>
To:     Andrey Ryabinin <ryabinin.a.a@...il.com>
Cc:     dhowells@...hat.com, jmorris@...ei.org,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
        LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        linux-ima-devel@...ts.sourceforge.net, herbert@...dor.apana.org.au
Subject: Re: [PATCH 2/2] MPI: Fix mpi_powm() when exponent is 0 and the result has no limbs

Andrey Ryabinin <ryabinin.a.a@...il.com> wrote:

> I'm also made a fix for this yesterday -
> http://lkml.kernel.org/r/1479918484-31952-1-git-send-email-aryabinin@virtuozzo.com

I should add a record to the MAINTAINERS file that directs patches to MPI to
keyrings@...r.kernel.org so that I see things like this.

> The only small difference is that in my the limb space is not
> allocated when it's not needed, i.e. when res->nlimbs == 0.

I guess if nlimbs is 0 then the value is 0, right?

David