Re: [PATCH v4 3/3] memory_hotplug.c: send DEVICE_UNPLUG_ERROR in acpi_memory_hotplug_write()

[Markus Armbruster <armbru@redhat.com>]

Daniel Henrique Barboza <danielhb413@gmail.com> writes:

> MEM_UNPLUG_ERROR is deprecated since the introduction of
> DEVICE_UNPLUG_ERROR. Keep emitting both while the deprecation of
> MEM_UNPLUG_ERROR is pending.
>
> CC: Michael S. Tsirkin <mst@redhat.com>
> CC: Igor Mammedov <imammedo@redhat.com>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
> ---
>  hw/acpi/memory_hotplug.c | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
> index af37889423..fb9f4d2de7 100644
> --- a/hw/acpi/memory_hotplug.c
> +++ b/hw/acpi/memory_hotplug.c
> @@ -8,6 +8,7 @@
>  #include "qapi/error.h"
>  #include "qapi/qapi-events-acpi.h"
>  #include "qapi/qapi-events-machine.h"
> +#include "qapi/qapi-events-qdev.h"
>  
>  #define MEMORY_SLOTS_NUMBER          "MDNR"
>  #define MEMORY_HOTPLUG_IO_REGION     "HPMR"
> @@ -177,9 +178,17 @@ static void acpi_memory_hotplug_write(void *opaque, hwaddr addr, uint64_t data,
>              /* call pc-dimm unplug cb */
>              hotplug_handler_unplug(hotplug_ctrl, dev, &local_err);
>              if (local_err) {
> +                const char *error_pretty = error_get_pretty(local_err);
> +
>                  trace_mhp_acpi_pc_dimm_delete_failed(mem_st->selector);
> -                qapi_event_send_mem_unplug_error(dev->id,
> -                                                 error_get_pretty(local_err));
> +
> +                /*
> +                 * Send both MEM_UNPLUG_ERROR and DEVICE_UNPLUG_ERROR
> +                 * while the deprecation of MEM_UNPLUG_ERROR is
> +                 * pending.
> +                 */
> +                qapi_event_send_mem_unplug_error(dev->id, error_pretty);
> +                qapi_event_send_device_unplug_error(dev->id, error_pretty);
>                  error_free(local_err);
>                  break;
>              }

Same question as for PATCH 2: can dev->id be null?