On Tue, Oct 03, 2023 at 03:58:02PM +0530, Ani Sinha wrote:
> Code changes that addresses all compiler complaints coming from enabling
> -Wshadow flags. Enabling -Wshadow catches cases of local variables shadowing
> other local variables or parameters. These makes the code confusing and/or 
> adds
> bugs that are difficult to catch.
> 
> See also
> 
>    Subject: Help wanted for enabling -Wshadow=local
>    Message-Id: <87r0mqlf9x....@pond.sub.org>
>    https://lore.kernel.org/qemu-devel/87r0mqlf9x....@pond.sub.org
> 
> CC: Markus Armbruster <arm...@redhat.com>
> CC: Philippe Mathieu-Daude <phi...@linaro.org>
> CC: m...@redhat.com
> 
> Signed-off-by: Ani Sinha <anisi...@redhat.com>
> Reviewed-by: Daniel P. Berrangé <berra...@redhat.com>
> Reviewed-by: Peter Xu <pet...@redhat.com>


Reviewed-by: Michael S. Tsirkin <m...@redhat.com>

> ---
>  hw/i386/acpi-microvm.c | 4 ++--
>  hw/i386/pc.c           | 1 -
>  hw/i386/x86.c          | 2 --
>  3 files changed, 2 insertions(+), 5 deletions(-)
> 
> changelog:
> v3: split the patches. Peter's changes are now in a seperate patch.
> Addressed mst's suggestions. Removed message-ID
> from commit log and added the reference to previous discussion thread
> explicitly.
> v2: kept Peter's changes from 
> https://lore.kernel.org/r/20230922160410.138786-1-pet...@redhat.com
> and removed mine.
> 
> diff --git a/hw/i386/acpi-microvm.c b/hw/i386/acpi-microvm.c
> index a075360d85..6ddcfb0419 100644
> --- a/hw/i386/acpi-microvm.c
> +++ b/hw/i386/acpi-microvm.c
> @@ -55,8 +55,8 @@ static void acpi_dsdt_add_virtio(Aml *scope,
>  
>      bus = sysbus_get_default();
>      QTAILQ_FOREACH(kid, &bus->children, sibling) {
> -        DeviceState *dev = kid->child;
> -        Object *obj = object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MMIO);
> +        Object *obj = object_dynamic_cast(OBJECT(kid->child),
> +                                          TYPE_VIRTIO_MMIO);
>  
>          if (obj) {
>              VirtIOMMIOProxy *mmio = VIRTIO_MMIO(obj);
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 3db0743f31..e7a233e886 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1116,7 +1116,6 @@ void pc_memory_init(PCMachineState *pcms,
>  
>      if (machine->device_memory) {
>          uint64_t *val = g_malloc(sizeof(*val));
> -        PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
>          uint64_t res_mem_end = machine->device_memory->base;
>  
>          if (!pcmc->broken_reserved_end) {
> diff --git a/hw/i386/x86.c b/hw/i386/x86.c
> index f034df8bf6..b3d054889b 100644
> --- a/hw/i386/x86.c
> +++ b/hw/i386/x86.c
> @@ -365,8 +365,6 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
>  
>      cpu_slot = x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, &idx);
>      if (!cpu_slot) {
> -        MachineState *ms = MACHINE(x86ms);
> -
>          x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
>          error_setg(errp,
>              "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
> -- 
> 2.42.0


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