linux-kernel - Re: [PATCH v1 01/11] ACPI: NUMA: export pxm_to

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Message-ID: <20200302140309.GM4380@dhcp22.suse.cz>
Date:   Mon, 2 Mar 2020 15:03:09 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     David Hildenbrand <david@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        virtio-dev@...ts.oasis-open.org,
        virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v1 01/11] ACPI: NUMA: export pxm_to_node

On Mon 02-03-20 14:49:31, David Hildenbrand wrote:
> Will be needed by virtio-mem to identify the node from a pxm.

No objection to export the symbol. But it is almost always better to add
the export in the patch that actually uses it. The intention is much
more clear that way.

> Acked-by: "Rafael J. Wysocki" <rafael@...nel.org>
> Cc: Len Brown <lenb@...nel.org>
> Cc: linux-acpi@...r.kernel.org
> Signed-off-by: David Hildenbrand <david@...hat.com>

Acked-by: Michal Hocko <mhocko@...e.com> # for the export

> ---
>  drivers/acpi/numa/srat.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c
> index 47b4969d9b93..5be5a977da1b 100644
> --- a/drivers/acpi/numa/srat.c
> +++ b/drivers/acpi/numa/srat.c
> @@ -35,6 +35,7 @@ int pxm_to_node(int pxm)
>  		return NUMA_NO_NODE;
>  	return pxm_to_node_map[pxm];
>  }
> +EXPORT_SYMBOL(pxm_to_node);
>  
>  int node_to_pxm(int node)
>  {
> -- 
> 2.24.1
> 

-- 
Michal Hocko
SUSE Labs