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Re: [PATCH 3/6] sparc32-espdma: use object_initialize_child() for esp ch


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH 3/6] sparc32-espdma: use object_initialize_child() for esp child object
Date: Sun, 20 Sep 2020 12:49:33 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0

On 9/20/20 10:20 AM, Mark Cave-Ayland wrote:
> Store the child object directly within the sparc32-espdma object rather than
> using link properties.
> 
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> ---
>  hw/dma/sparc32_dma.c           | 17 ++++++++---------
>  include/hw/sparc/sparc32_dma.h |  2 +-
>  2 files changed, 9 insertions(+), 10 deletions(-)
> 
> diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c
> index 84196afb95..2cbe331959 100644
> --- a/hw/dma/sparc32_dma.c
> +++ b/hw/dma/sparc32_dma.c
> @@ -290,27 +290,26 @@ static const TypeInfo sparc32_dma_device_info = {
>  static void sparc32_espdma_device_init(Object *obj)
>  {
>      DMADeviceState *s = SPARC32_DMA_DEVICE(obj);
> +    ESPDMADeviceState *es = SPARC32_ESPDMA_DEVICE(obj);
>  
>      memory_region_init_io(&s->iomem, OBJECT(s), &dma_mem_ops, s,
>                            "espdma-mmio", DMA_SIZE);
> +
> +    object_initialize_child(obj, "esp", &es->esp, TYPE_ESP);
>  }
>  
>  static void sparc32_espdma_device_realize(DeviceState *dev, Error **errp)
>  {
> -    DeviceState *d;
> -    SysBusESPState *sysbus;
> -    ESPState *esp;
> -
> -    d = qdev_new(TYPE_ESP);
> -    object_property_add_child(OBJECT(dev), "esp", OBJECT(d));
> -    sysbus = ESP(d);
> -    esp = &sysbus->esp;
> +    ESPDMADeviceState *es = SPARC32_ESPDMA_DEVICE(dev);
> +    SysBusESPState *sysbus = ESP(&es->esp);
> +    ESPState *esp = &sysbus->esp;
> +
>      esp->dma_memory_read = espdma_memory_read;
>      esp->dma_memory_write = espdma_memory_write;
>      esp->dma_opaque = SPARC32_DMA_DEVICE(dev);
>      sysbus->it_shift = 2;
>      esp->dma_enabled = 1;
> -    sysbus_realize_and_unref(SYS_BUS_DEVICE(d), &error_fatal);
> +    sysbus_realize(SYS_BUS_DEVICE(sysbus), &error_fatal);
>  }
>  
>  static void sparc32_espdma_device_class_init(ObjectClass *klass, void *data)
> diff --git a/include/hw/sparc/sparc32_dma.h b/include/hw/sparc/sparc32_dma.h
> index f2bfe272ba..d40eca0cc8 100644
> --- a/include/hw/sparc/sparc32_dma.h
> +++ b/include/hw/sparc/sparc32_dma.h
> @@ -32,7 +32,7 @@ DECLARE_INSTANCE_CHECKER(ESPDMADeviceState, 
> SPARC32_ESPDMA_DEVICE,
>  struct ESPDMADeviceState {
>      DMADeviceState parent_obj;
>  
> -    SysBusESPState *esp;
> +    SysBusESPState esp;
>  };
>  
>  #define TYPE_SPARC32_LEDMA_DEVICE "sparc32-ledma"
> 




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