Re: [PATCH for-7.1 1/4] target/loongarch: Only allow short -cpu arguments without type name suffix

[Igor Mammedov <imammedo@redhat.com>]

On Sun, 14 Aug 2022 22:55:19 +0800
WANG Xuerui <i.qemu@xen0n.name> wrote:

> From: WANG Xuerui <git@xen0n.name>
> 
> Previously both "foo" and "foo-loongarch-cpu" are accepted for the -cpu
> command-line option, the latter of which being excessively long and
> redundant, hence unwanted. Remove support for consistency with other
> targets and simpler code.

to be consistent wit -device and other (qmp/monitor interfaces)
it's better to drop short variants (they are there mainly for compat
reasons) and use only long names (i.e. complete type name).

use avr_cpu_class_by_name() as an example

> 
> Signed-off-by: WANG Xuerui <git@xen0n.name>
> ---
>  target/loongarch/cpu.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
> index 941e2772bc..dc233ee209 100644
> --- a/target/loongarch/cpu.c
> +++ b/target/loongarch/cpu.c
> @@ -573,14 +573,11 @@ static ObjectClass *loongarch_cpu_class_by_name(const char *cpu_model)
>  {
>      ObjectClass *oc;
>  
> -    oc = object_class_by_name(cpu_model);
> +    g_autofree char *typename = g_strdup_printf(LOONGARCH_CPU_TYPE_NAME("%s"),
> +                                                cpu_model);
> +    oc = object_class_by_name(typename);
>      if (!oc) {
> -        g_autofree char *typename 
> -            = g_strdup_printf(LOONGARCH_CPU_TYPE_NAME("%s"), cpu_model);
> -        oc = object_class_by_name(typename);
> -        if (!oc) {
> -            return NULL;
> -        }
> +        return NULL;
>      }
>  
>      if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU)