Re: [PATCH v4 2/3] hw: Make MachineClass::is_default a boolean type

[Thomas Huth <thuth@redhat.com>]

On 07/02/2020 17.19, Philippe Mathieu-Daudé wrote:
> There's no good reason for it to be type int, change it to bool.
> 
> Suggested-by: Richard Henderson <richard.henderson@linaro.org>
> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> v4:
> - fixed incorrect changes to max_cpus (Laurent)
> - describe field
> ---
[...]
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index fa12203079..9088db8fb6 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -423,7 +423,7 @@ static void pc_i440fx_5_0_machine_options(MachineClass *m)
>      PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
>      pc_i440fx_machine_options(m);
>      m->alias = "pc";
> -    m->is_default = 1;
> +    m->is_default = true;
>      pcmc->default_cpu_version = 1;
>  }
>  
> @@ -434,7 +434,7 @@ static void pc_i440fx_4_2_machine_options(MachineClass *m)
>  {
>      pc_i440fx_5_0_machine_options(m);
>      m->alias = NULL;
> -    m->is_default = 0;
> +    m->is_default = false;
>      compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len);
>      compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len);
>  }
> @@ -446,7 +446,7 @@ static void pc_i440fx_4_1_machine_options(MachineClass *m)
>  {
>      pc_i440fx_4_2_machine_options(m);

Since we're calling pc_i440fx_4_2_machine_options() here...

>      m->alias = NULL;
> -    m->is_default = 0;
> +    m->is_default = false;

... you could even remove this line now...

>      compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
>      compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
>  }
> @@ -459,7 +459,7 @@ static void pc_i440fx_4_0_machine_options(MachineClass *m)
>      PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
>      pc_i440fx_4_1_machine_options(m);
>      m->alias = NULL;
> -    m->is_default = 0;
> +    m->is_default = false;

... and this one, too.

>      pcmc->default_cpu_version = CPU_VERSION_LEGACY;
>      compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
>      compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
> @@ -473,7 +473,7 @@ static void pc_i440fx_3_1_machine_options(MachineClass *m)
>      PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
>  
>      pc_i440fx_4_0_machine_options(m);
> -    m->is_default = 0;
> +    m->is_default = false;

dito.

But that could also be done in a later patch, so:

Reviewed-by: Thomas Huth <thuth@redhat.com>