[PATCH 10/12] hw/core: Improve the query-hotpluggable-cpus error message

[Markus Armbruster <armbru@redhat.com>]

The QERR_ macros are leftovers from the days of "rich" error objects.
We've been trying to reduce their remaining use.

Get rid of a use of QERR_FEATURE_DISABLED, and improve the slightly
awkward error message

    (qemu) info hotpluggable-cpus
    Error: The feature 'query-hotpluggable-cpus' is not enabled

to

    Error: machine does not support hot-plugging CPUs

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/core/machine-qmp-cmds.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index a6ed3a63c3..2d904747c0 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -16,7 +16,6 @@
 #include "qapi/error.h"
 #include "qapi/qapi-builtin-visit.h"
 #include "qapi/qapi-commands-machine.h"
-#include "qapi/qmp/qerror.h"
 #include "qapi/qmp/qobject.h"
 #include "qapi/qobject-input-visitor.h"
 #include "qapi/type-helpers.h"
@@ -141,7 +140,7 @@ HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
     MachineClass *mc = MACHINE_GET_CLASS(ms);
 
     if (!mc->has_hotpluggable_cpus) {
-        error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
+        error_setg(errp, "machine does not support hot-plugging CPUs");
         return NULL;
     }
 
-- 
2.39.0