On Mon, Mar 25, 2013 at 01:52:32PM -0500, Nathan Fontenot wrote:
> From: Jesse Larrew <jlar...@linux.vnet.ibm.com>
>
> A PRRN event is signaled via the RTAS event-scan mechanism, which
> returns a Hot Plug Event message "fixed part" indicating "Platform
> Resource Reassignment". In response to the Hot Plug Event message,
> we must call ibm,update-nodes to determine which resources were
> reassigned and then ibm,update-properties to obtain the new affinity
> information about those resources.
..
> Index: powerpc/arch/powerpc/kernel/rtasd.c
> ===================================================================
> --- powerpc.orig/arch/powerpc/kernel/rtasd.c 2013-03-20 08:24:14.000000000
> -0500
> +++ powerpc/arch/powerpc/kernel/rtasd.c 2013-03-20 08:52:08.000000000
> -0500
> @@ -87,6 +87,8 @@
> return "Resource Deallocation Event";
> case RTAS_TYPE_DUMP:
> return "Dump Notification Event";
> + case RTAS_TYPE_PRRN:
> + return "Platform Resource Reassignment Event";
> }
>
> return rtas_type[0];
> @@ -265,7 +267,38 @@
> spin_unlock_irqrestore(&rtasd_log_lock, s);
> return;
> }
> +}
> +
> +static s32 update_scope;
> +
> +static void prrn_work_fn(struct work_struct *work)
> +{
> + /*
> + * For PRRN, we must pass the negative of the scope value in
> + * the RTAS event.
> + */
> + pseries_devicetree_update(-update_scope);
> +}
> +static DECLARE_WORK(prrn_work, prrn_work_fn);
This breaks the 32-bit build (ppc6xx_defconfig):
arch/powerpc/kernel/rtasd.c:280: undefined reference to
`pseries_devicetree_update'
cheers
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