Re: [PATCH 4/6] hw/acpi/pcihp: Clean up global variable shadowing in acpi_pcihp_init()

[Michael S. Tsirkin]

On Mon, Oct 09, 2023 at 11:47:44AM +0200, Philippe Mathieu-Daudé wrote:
> Fix:
> 
>   hw/acpi/pcihp.c:499:36: error: declaration shadows a variable in the global 
> scope [-Werror,-Wshadow]
>                        MemoryRegion *address_space_io,
>                                      ^
>   include/exec/address-spaces.h:35:21: note: previous declaration is here
>   extern AddressSpace address_space_io;
>                       ^
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

Acked-by: Michael S. Tsirkin <mst@redhat.com>

> ---
>  include/hw/acpi/pcihp.h | 2 +-
>  hw/acpi/pcihp.c         | 5 ++---
>  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h
> index ef59810c17..ac21a95913 100644
> --- a/include/hw/acpi/pcihp.h
> +++ b/include/hw/acpi/pcihp.h
> @@ -56,7 +56,7 @@ typedef struct AcpiPciHpState {
>  } AcpiPciHpState;
>  
>  void acpi_pcihp_init(Object *owner, AcpiPciHpState *, PCIBus *root,
> -                     MemoryRegion *address_space_io, uint16_t io_base);
> +                     MemoryRegion *io, uint16_t io_base);
>  
>  bool acpi_pcihp_is_hotpluggbale_bus(AcpiPciHpState *s, BusState *bus);
>  void acpi_pcihp_device_pre_plug_cb(HotplugHandler *hotplug_dev,
> diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
> index cdd6f775a1..4f75c873e2 100644
> --- a/hw/acpi/pcihp.c
> +++ b/hw/acpi/pcihp.c
> @@ -496,8 +496,7 @@ static const MemoryRegionOps acpi_pcihp_io_ops = {
>  };
>  
>  void acpi_pcihp_init(Object *owner, AcpiPciHpState *s, PCIBus *root_bus,
> -                     MemoryRegion *address_space_io,
> -                     uint16_t io_base)
> +                     MemoryRegion *io, uint16_t io_base)
>  {
>      s->io_len = ACPI_PCIHP_SIZE;
>      s->io_base = io_base;
> @@ -506,7 +505,7 @@ void acpi_pcihp_init(Object *owner, AcpiPciHpState *s, 
> PCIBus *root_bus,
>  
>      memory_region_init_io(&s->io, owner, &acpi_pcihp_io_ops, s,
>                            "acpi-pci-hotplug", s->io_len);
> -    memory_region_add_subregion(address_space_io, s->io_base, &s->io);
> +    memory_region_add_subregion(io, s->io_base, &s->io);
>  
>      object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_BASE_PROP, 
> &s->io_base,
>                                     OBJ_PROP_FLAG_READ);
> -- 
> 2.41.0