Re: [Qemu-devel] [PATCH for-1.6 v2 2/2] pci-bridge: Move common class initializations to base type

[Paolo Bonzini <pbonzini@redhat.com>]

On 08/05/2013 04:36 PM, Andreas Färber wrote:
> Set PCIDeviceClass::is_bridge as well as PCIDeviceClass::config_write(),
> PCIDeviceClass::exit() and DeviceClass::reset() defaults directly for
> TYPE_PCI_BRIDGE (complements f055e96bd4311d287c0e03faec02a1bdbc351925).
>
> This avoids another pci_bridge_config_write() missing somewhere, unless
> explicitly overridden.
>
> Reported-by: Gerd Hoffmann <kraxel@redhat.com>
> Signed-off-by: Andreas Färber <afaerber@suse.de>

Why for 1.6?

Paolo

> ---
>   hw/pci-bridge/dec.c                |  4 ----
>   hw/pci-bridge/i82801b11.c          |  2 --
>   hw/pci-bridge/ioh3420.c            |  1 -
>   hw/pci-bridge/pci_bridge_dev.c     |  1 -
>   hw/pci-bridge/xio3130_downstream.c |  1 -
>   hw/pci-bridge/xio3130_upstream.c   |  1 -
>   hw/pci-host/apb.c                  |  4 ----
>   hw/pci/pci_bridge.c                | 12 ++++++++++++
>   8 files changed, 12 insertions(+), 14 deletions(-)
>
> diff --git a/hw/pci-bridge/dec.c b/hw/pci-bridge/dec.c
> index e5e3be8..379f9f0 100644
> --- a/hw/pci-bridge/dec.c
> +++ b/hw/pci-bridge/dec.c
> @@ -62,13 +62,9 @@ static void dec_21154_pci_bridge_class_init(ObjectClass *klass, void *data)
>       PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>
>       k->init = dec_pci_bridge_initfn;
> -    k->exit = pci_bridge_exitfn;
>       k->vendor_id = PCI_VENDOR_ID_DEC;
>       k->device_id = PCI_DEVICE_ID_DEC_21154;
> -    k->config_write = pci_bridge_write_config;
> -    k->is_bridge = 1;
>       dc->desc = "DEC 21154 PCI-PCI bridge";
> -    dc->reset = pci_bridge_reset;
>       dc->vmsd = &vmstate_pci_device;
>   }
>
> diff --git a/hw/pci-bridge/i82801b11.c b/hw/pci-bridge/i82801b11.c
> index 14cd7fd..ab0c8e1 100644
> --- a/hw/pci-bridge/i82801b11.c
> +++ b/hw/pci-bridge/i82801b11.c
> @@ -85,12 +85,10 @@ static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
>       PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>       DeviceClass *dc = DEVICE_CLASS(klass);
>
> -    k->is_bridge = 1;
>       k->vendor_id = PCI_VENDOR_ID_INTEL;
>       k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11;
>       k->revision = ICH9_D2P_A2_REVISION;
>       k->init = i82801b11_bridge_initfn;
> -    k->config_write = pci_bridge_write_config;
>       set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
>   }
>
> diff --git a/hw/pci-bridge/ioh3420.c b/hw/pci-bridge/ioh3420.c
> index 0f7f209..2748b06 100644
> --- a/hw/pci-bridge/ioh3420.c
> +++ b/hw/pci-bridge/ioh3420.c
> @@ -200,7 +200,6 @@ static void ioh3420_class_init(ObjectClass *klass, void *data)
>       PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>
>       k->is_express = 1;
> -    k->is_bridge = 1;
>       k->config_write = ioh3420_write_config;
>       k->init = ioh3420_initfn;
>       k->exit = ioh3420_exitfn;
> diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
> index a9392c7..716d0af 100644
> --- a/hw/pci-bridge/pci_bridge_dev.c
> +++ b/hw/pci-bridge/pci_bridge_dev.c
> @@ -142,7 +142,6 @@ static void pci_bridge_dev_class_init(ObjectClass *klass, void *data)
>       k->vendor_id = PCI_VENDOR_ID_REDHAT;
>       k->device_id = PCI_DEVICE_ID_REDHAT_BRIDGE;
>       k->class_id = PCI_CLASS_BRIDGE_PCI;
> -    k->is_bridge = 1,
>       dc->desc = "Standard PCI Bridge";
>       dc->reset = qdev_pci_bridge_dev_reset;
>       dc->props = pci_bridge_dev_properties;
> diff --git a/hw/pci-bridge/xio3130_downstream.c b/hw/pci-bridge/xio3130_downstream.c
> index 94f9781..07da9bf 100644
> --- a/hw/pci-bridge/xio3130_downstream.c
> +++ b/hw/pci-bridge/xio3130_downstream.c
> @@ -167,7 +167,6 @@ static void xio3130_downstream_class_init(ObjectClass *klass, void *data)
>       PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>
>       k->is_express = 1;
> -    k->is_bridge = 1;
>       k->config_write = xio3130_downstream_write_config;
>       k->init = xio3130_downstream_initfn;
>       k->exit = xio3130_downstream_exitfn;
> diff --git a/hw/pci-bridge/xio3130_upstream.c b/hw/pci-bridge/xio3130_upstream.c
> index 59f97f6..def08c8 100644
> --- a/hw/pci-bridge/xio3130_upstream.c
> +++ b/hw/pci-bridge/xio3130_upstream.c
> @@ -146,7 +146,6 @@ static void xio3130_upstream_class_init(ObjectClass *klass, void *data)
>       PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>
>       k->is_express = 1;
> -    k->is_bridge = 1;
>       k->config_write = xio3130_upstream_write_config;
>       k->init = xio3130_upstream_initfn;
>       k->exit = xio3130_upstream_exitfn;
> diff --git a/hw/pci-host/apb.c b/hw/pci-host/apb.c
> index 92f289f..1cb2ef4 100644
> --- a/hw/pci-host/apb.c
> +++ b/hw/pci-host/apb.c
> @@ -553,14 +553,10 @@ static void pbm_pci_bridge_class_init(ObjectClass *klass, void *data)
>       PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
>
>       k->init = apb_pci_bridge_initfn;
> -    k->exit = pci_bridge_exitfn;
>       k->vendor_id = PCI_VENDOR_ID_SUN;
>       k->device_id = PCI_DEVICE_ID_SUN_SIMBA;
>       k->revision = 0x11;
> -    k->config_write = pci_bridge_write_config;
> -    k->is_bridge = 1;
>       set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
> -    dc->reset = pci_bridge_reset;
>       dc->vmsd = &vmstate_pci_device;
>   }
>
> diff --git a/hw/pci/pci_bridge.c b/hw/pci/pci_bridge.c
> index a90671d..23a5c7d 100644
> --- a/hw/pci/pci_bridge.c
> +++ b/hw/pci/pci_bridge.c
> @@ -405,11 +405,23 @@ void pci_bridge_map_irq(PCIBridge *br, const char* bus_name,
>       br->bus_name = bus_name;
>   }
>
> +static void pci_bridge_class_init(ObjectClass *oc, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(oc);
> +    PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
> +
> +    pdc->is_bridge = 1;
> +    pdc->exit = pci_bridge_exitfn;
> +    pdc->config_write = pci_bridge_write_config;
> +    dc->reset = pci_bridge_reset;
> +}
> +
>   static const TypeInfo pci_bridge_type_info = {
>       .name = TYPE_PCI_BRIDGE,
>       .parent = TYPE_PCI_DEVICE,
>       .instance_size = sizeof(PCIBridge),
>       .abstract = true,
> +    .class_init = pci_bridge_class_init,
>   };
>
>   static void pci_bridge_register_types(void)
>