Re: [Qemu-devel] [PATCH v2 2/6] spapr: move lookup of the node into spapr_memory_plug()

[Greg Kurz <groug@kaod.org>]

On Fri,  8 Jun 2018 14:48:12 +0200
David Hildenbrand <david@redhat.com> wrote:

> Let's clean the hotplug handler up by moving lookup of the node into
> the function where it is actually being used.
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  hw/ppc/spapr.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index f16a0b2870..1f577b274b 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -3136,7 +3136,7 @@ static void spapr_add_lmbs(DeviceState *dev, uint64_t addr_start, uint64_t size,
>  }
>  
>  static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> -                              uint32_t node, Error **errp)
> +                              Error **errp)
>  {
>      Error *local_err = NULL;
>      sPAPRMachineState *ms = SPAPR_MACHINE(hotplug_dev);
> @@ -3144,6 +3144,7 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
>      PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
>      MemoryRegion *mr;
>      uint64_t align, size, addr;
> +    uint32_t node;
>  
>      mr = ddc->get_memory_region(dimm, &local_err);
>      if (local_err) {
> @@ -3163,6 +3164,8 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
>          goto out_unplug;
>      }
>  
> +    node = object_property_get_uint(OBJECT(dev), PC_DIMM_NODE_PROP,
> +                                    &error_abort);
>      spapr_add_lmbs(dev, addr, size, node,
>                     spapr_ovec_test(ms->ov5_cas, OV5_HP_EVT),
>                     &local_err);
> @@ -3572,16 +3575,11 @@ static void spapr_machine_device_plug(HotplugHandler *hotplug_dev,
>      sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(ms);
>  
>      if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
> -        int node;
> -
>          if (!smc->dr_lmb_enabled) {
>              error_setg(errp, "Memory hotplug not supported for this machine");
>              return;
>          }
> -        node = object_property_get_uint(OBJECT(dev), PC_DIMM_NODE_PROP,
> -                                        &error_abort);
> -
> -        spapr_memory_plug(hotplug_dev, dev, node, errp);
> +        spapr_memory_plug(hotplug_dev, dev, errp);
>      } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_CPU_CORE)) {
>          spapr_core_plug(hotplug_dev, dev, errp);
>      }