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Re: [Xen-devel] [v4][PATCH 3/5] I440FX_PCI_DEVICE: add pci_type to index



On Wed, Aug 06, 2014 at 02:50:33PM +0800, Tiejun Chen wrote:
> We need to use this index to reuse this macro later
> 
> Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxx>

Which index?
Most users don't need to change.
Just open-code OBJECT_CHECK where necessary, or add
a new wrapper.

> ---
>  hw/pci-host/piix.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> v4:
> 
> * New patch to extend I440FX_PCI_DEVICE
> 
> diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
> index 0cd82b8..4330599 100644
> --- a/hw/pci-host/piix.c
> +++ b/hw/pci-host/piix.c
> @@ -90,8 +90,8 @@ typedef struct PIIX3State {
>      MemoryRegion rcr_mem;
>  } PIIX3State;
>  
> -#define I440FX_PCI_DEVICE(obj) \
> -    OBJECT_CHECK(PCII440FXState, (obj), TYPE_I440FX_PCI_DEVICE)
> +#define I440FX_PCI_DEVICE(obj, type) \
> +    OBJECT_CHECK(PCII440FXState, (obj), type)
>  
>  struct PCII440FXState {
>      /*< private >*/
> @@ -155,7 +155,7 @@ static void i440fx_set_smm(int val, void *arg)
>  static void i440fx_write_config(PCIDevice *dev,
>                                  uint32_t address, uint32_t val, int len)
>  {
> -    PCII440FXState *d = I440FX_PCI_DEVICE(dev);
> +    PCII440FXState *d = I440FX_PCI_DEVICE(dev, TYPE_I440FX_PCI_DEVICE);
>  
>      /* XXX: implement SMRAM.D_LOCK */
>      pci_default_write_config(dev, address, val, len);
> @@ -295,7 +295,7 @@ static void i440fx_pcihost_realize(DeviceState *dev, 
> Error **errp)
>  
>  static int i440fx_initfn(PCIDevice *dev)
>  {
> -    PCII440FXState *d = I440FX_PCI_DEVICE(dev);
> +    PCII440FXState *d = I440FX_PCI_DEVICE(dev, TYPE_I440FX_PCI_DEVICE);
>  
>      dev->config[I440FX_SMRAM] = 0x02;
>  
> @@ -333,7 +333,7 @@ PCIBus *i440fx_init(const char *host_type, const char 
> *pci_type,
>      qdev_init_nofail(dev);
>  
>      d = pci_create_simple(b, 0, pci_type);
> -    *pi440fx_state = I440FX_PCI_DEVICE(d);
> +    *pi440fx_state = I440FX_PCI_DEVICE(d, pci_type);
>      f = *pi440fx_state;
>      f->system_memory = address_space_mem;
>      f->pci_address_space = pci_address_space;
> -- 
> 1.9.1

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