Re: [PATCH 1/5] pc-dimm: Drop @errp argument of pc_dimm_plug()

[Igor Mammedov <imammedo@redhat.com>]

On Mon, 19 Oct 2020 10:48:04 +0200
Greg Kurz <groug@kaod.org> wrote:

> pc_dimm_plug() doesn't use it. It only aborts on error.
> 
> Drop @errp and adapt the callers accordingly.
> 
> Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>

arguably the same should be done in spapr.

> ---
>  hw/arm/virt.c            |    9 +--------
>  hw/i386/pc.c             |    8 +-------
>  hw/mem/pc-dimm.c         |    2 +-
>  hw/ppc/spapr.c           |    5 +----
>  include/hw/mem/pc-dimm.h |    2 +-
>  5 files changed, 5 insertions(+), 21 deletions(-)
> 
> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> index e465a988d683..27dbeb549ef1 100644
> --- a/hw/arm/virt.c
> +++ b/hw/arm/virt.c
> @@ -2261,12 +2261,8 @@ static void virt_memory_plug(HotplugHandler *hotplug_dev,
>      VirtMachineState *vms = VIRT_MACHINE(hotplug_dev);
>      MachineState *ms = MACHINE(hotplug_dev);
>      bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
> -    Error *local_err = NULL;
>  
> -    pc_dimm_plug(PC_DIMM(dev), MACHINE(vms), &local_err);
> -    if (local_err) {
> -        goto out;
> -    }
> +    pc_dimm_plug(PC_DIMM(dev), MACHINE(vms));
>  
>      if (is_nvdimm) {
>          nvdimm_plug(ms->nvdimms_state);
> @@ -2274,9 +2270,6 @@ static void virt_memory_plug(HotplugHandler *hotplug_dev,
>  
>      hotplug_handler_plug(HOTPLUG_HANDLER(vms->acpi_dev),
>                           dev, &error_abort);
> -
> -out:
> -    error_propagate(errp, local_err);
>  }
>  
>  static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev,
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index e87be5d29a01..38b1be78e707 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1265,24 +1265,18 @@ static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
>  static void pc_memory_plug(HotplugHandler *hotplug_dev,
>                             DeviceState *dev, Error **errp)
>  {
> -    Error *local_err = NULL;
>      PCMachineState *pcms = PC_MACHINE(hotplug_dev);
>      X86MachineState *x86ms = X86_MACHINE(hotplug_dev);
>      MachineState *ms = MACHINE(hotplug_dev);
>      bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
>  
> -    pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms), &local_err);
> -    if (local_err) {
> -        goto out;
> -    }
> +    pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms));
>  
>      if (is_nvdimm) {
>          nvdimm_plug(ms->nvdimms_state);
>      }
>  
>      hotplug_handler_plug(x86ms->acpi_dev, dev, &error_abort);
> -out:
> -    error_propagate(errp, local_err);
>  }
>  
>  static void pc_memory_unplug_request(HotplugHandler *hotplug_dev,
> diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
> index c30351070bb8..2ffc986734df 100644
> --- a/hw/mem/pc-dimm.c
> +++ b/hw/mem/pc-dimm.c
> @@ -64,7 +64,7 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
>                             errp);
>  }
>  
> -void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine, Error **errp)
> +void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine)
>  {
>      PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
>      MemoryRegion *vmstate_mr = ddc->get_vmstate_memory_region(dimm,
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index ee716a12af73..4edd31b86915 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -3438,10 +3438,7 @@ static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
>  
>      size = memory_device_get_region_size(MEMORY_DEVICE(dev), &error_abort);
>  
> -    pc_dimm_plug(dimm, MACHINE(ms), &local_err);
> -    if (local_err) {
> -        goto out;
> -    }
> +    pc_dimm_plug(dimm, MACHINE(ms));
>  
>      if (!is_nvdimm) {
>          addr = object_property_get_uint(OBJECT(dimm),
> diff --git a/include/hw/mem/pc-dimm.h b/include/hw/mem/pc-dimm.h
> index aec9527fdd96..3d3db82641f8 100644
> --- a/include/hw/mem/pc-dimm.h
> +++ b/include/hw/mem/pc-dimm.h
> @@ -72,6 +72,6 @@ struct PCDIMMDeviceClass {
>  
>  void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
>                        const uint64_t *legacy_align, Error **errp);
> -void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine, Error **errp);
> +void pc_dimm_plug(PCDIMMDevice *dimm, MachineState *machine);
>  void pc_dimm_unplug(PCDIMMDevice *dimm, MachineState *machine);
>  #endif
> 
> 
>