[v5,4/6] hw/qdev: Check DevClass::hotpluggable in hotplug_unplug_allowed_common

Commit Message

Philippe Mathieu-Daudé Jan. 10, 2025, 9:19 a.m. UTC

From: Akihiko Odaki <[e-mail]>

Check the same code once in the common helper.

Signed-off-by: Akihiko Odaki <[e-mail]>
Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
---
 hw/core/qdev-hotplug.c |  9 +++++++++
 system/qdev-monitor.c  | 10 +---------
 2 files changed, 10 insertions(+), 9 deletions(-)

Patch

diff --git a/hw/core/qdev-hotplug.c b/hw/core/qdev-hotplug.c
index 168d7964740..1d77fffb5e0 100644
--- a/hw/core/qdev-hotplug.c
+++ b/hw/core/qdev-hotplug.c
@@ -12,6 +12,7 @@ 
 #include "qemu/osdep.h"
 #include "hw/qdev-core.h"
 #include "hw/boards.h"
+#include "qapi/error.h"
 
 HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev)
 {
@@ -33,6 +34,14 @@  HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev)
 static bool qdev_hotplug_unplug_allowed_common(DeviceState *dev, BusState *bus,
                                                Error **errp)
 {
+    DeviceClass *dc = DEVICE_GET_CLASS(dev);
+
+    if (!dc->hotpluggable) {
+        error_setg(errp, "Device '%s' does not support hotplugging",
+                   object_get_typename(OBJECT(dev)));
+        return false;
+    }
+
     return true;
 }
 
diff --git a/system/qdev-monitor.c b/system/qdev-monitor.c
index e1c8e847d1f..f28b2e95459 100644
--- a/system/qdev-monitor.c
+++ b/system/qdev-monitor.c
@@ -263,8 +263,7 @@  static DeviceClass *qdev_get_device_class(const char **driver, Error **errp)
     }
 
     dc = DEVICE_CLASS(oc);
-    if (!dc->user_creatable ||
-        (phase_check(PHASE_MACHINE_READY) && !dc->hotpluggable)) {
+    if (!dc->user_creatable) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
                    "a pluggable device type");
         return NULL;
@@ -902,7 +901,6 @@  static DeviceState *find_device_state(const char *id, bool use_generic_error,
 
 void qdev_unplug(DeviceState *dev, Error **errp)
 {
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
     HotplugHandler *hotplug_ctrl;
     HotplugHandlerClass *hdc;
     Error *local_err = NULL;
@@ -917,12 +915,6 @@  void qdev_unplug(DeviceState *dev, Error **errp)
         return;
     }
 
-    if (!dc->hotpluggable) {
-        error_setg(errp, "Device '%s' does not support hotplugging",
-                   object_get_typename(OBJECT(dev)));
-        return;
-    }
-
     if (migration_is_running() && !dev->allow_unplug_during_migration) {
         error_setg(errp, "device_del not allowed while migrating");
         return;