linux-kernel - Re: [PATCH] powerpc: powernv: Fix build error on const discarding

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Date:   Thu, 17 Aug 2017 22:52:11 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Corentin Labbe <clabbe.montjoie@...il.com>,
        benh@...nel.crashing.org, paulus@...ba.org,
        anju@...ux.vnet.ibm.com, maddy@...ux.vnet.ibm.com
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Corentin Labbe <clabbe.montjoie@...il.com>
Subject: Re: [PATCH] powerpc: powernv: Fix build error on const discarding

Corentin Labbe <clabbe.montjoie@...il.com> writes:

> When building a random powerpc kernel I hit this build error:
>   CC      arch/powerpc/platforms/powernv/opal-imc.o
> arch/powerpc/platforms/powernv/opal-imc.c: In function « disable_nest_pmu_counters »:
> arch/powerpc/platforms/powernv/opal-imc.c:130:13: error : assignment discards « const » qualifier from pointer target type [-Werror=discarded-qualifiers]
>    l_cpumask = cpumask_of_node(nid);
>              ^
> This patch simply add const to l_cpumask to fix this issue.

Thanks. I'm not sure why we haven't seen that.

Do you mind attaching your .config ?

cheers