Re: [PATCH 4/5] hw/core: Remove uses of QERR_PROPERTY_VALUE_BAD

[Markus Armbruster <armbru@redhat.com>]

Philippe Mathieu-Daudé <philmd@redhat.com> writes:

> QERR_PROPERTY_VALUE_BAD definition is obsolete since 2015 (commit
> 4629ed1e989, "qerror: Finally unused, clean up"). Replace the two
> uses and drop the definition.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  include/qapi/qmp/qerror.h | 3 ---
>  hw/core/qdev-properties.c | 2 +-
>  target/i386/cpu.c         | 2 +-
>  3 files changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/include/qapi/qmp/qerror.h b/include/qapi/qmp/qerror.h
> index f49ae01cdb0..a3f44fc4a1e 100644
> --- a/include/qapi/qmp/qerror.h
> +++ b/include/qapi/qmp/qerror.h
> @@ -50,9 +50,6 @@
>  #define QERR_PERMISSION_DENIED \
>      "Insufficient permission to perform this operation"
>  
> -#define QERR_PROPERTY_VALUE_BAD \
> -    "Property '%s.%s' doesn't take value '%s'"
> -
>  #define QERR_PROPERTY_VALUE_OUT_OF_RANGE \
>      "Property %s.%s doesn't take value %" PRId64 " (minimum: %" PRId64 ", maximum: %" PRId64 ")"
>  
> diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
> index c34aac6ebc9..dbea4cf8e5e 100644
> --- a/hw/core/qdev-properties.c
> +++ b/hw/core/qdev-properties.c
> @@ -663,7 +663,7 @@ void error_set_from_qdev_prop_error(Error **errp, int ret, Object *obj,
>          break;
>      default:
>      case -EINVAL:
> -        error_setg(errp, QERR_PROPERTY_VALUE_BAD,
> +        error_setg(errp, "Property '%s.%s' doesn't take value '%s'",
>                     object_get_typename(obj), name, value);
>          break;
>      case -ENOENT:
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index fc3ed80ef1e..bc63b80e5bd 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -4469,7 +4469,7 @@ static void x86_cpuid_set_vendor(Object *obj, const char *value,
>      int i;
>  
>      if (strlen(value) != CPUID_VENDOR_SZ) {
> -        error_setg(errp, QERR_PROPERTY_VALUE_BAD, "", "vendor", value);
> +        error_setg(errp, "Property '.vendor' doesn't take value '%s'", value);
>          return;
>      }

We error out unless the string has exactly CPUID_VENDOR_SZ characters.
We don't tell the user, though[*].  We should!

If this patch was long, I'd separate the long & mechanical from the
error message improvement.  Since it isn't, I suggest to make the error
message improvement the patch's subject, and include the removal of
QERR_PROPERTY_VALUE_BAD "while there".  You choose how to structure
this.


[*] This is a common issue with error systems that make new error
messages harder than reusing some existing message.