qdev: HotplugHandler: Rename unplug callback to unplug_request

'HotplugHandler.unplug' callback is currently used as async
call to issue unplug request for device that implements it.
Renaming 'unplug' callback to 'unplug_request' should help to
avoid confusion about what callback does and would allow to
introduce 'unplug' callback that would perform actual device
removal when guest is ready for it.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

8 files changed, 19 insertions, 18 deletions

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index b72b34e5c9..0bfa814f71 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -354,8 +354,8 @@ static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
     }
 }
 
-static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
-                                   DeviceState *dev, Error **errp)
+static void piix4_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                           DeviceState *dev, Error **errp)
 {
     PIIX4PMState *s = PIIX4_PM(hotplug_dev);
 
@@ -615,7 +615,7 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data)
     dc->cannot_instantiate_with_device_add_yet = true;
     dc->hotpluggable = false;
     hc->plug = piix4_device_plug_cb;
-    hc->unplug = piix4_device_unplug_cb;
+    hc->unplug_request = piix4_device_unplug_request_cb;
     adevc->ospm_status = piix4_ospm_status;
 }
 
diff --git a/hw/core/hotplug.c b/hw/core/hotplug.c
index 5573d9d2d9..2ec4736593 100644
--- a/hw/core/hotplug.c
+++ b/hw/core/hotplug.c
@@ -23,14 +23,14 @@ void hotplug_handler_plug(HotplugHandler *plug_handler,
     }
 }
 
-void hotplug_handler_unplug(HotplugHandler *plug_handler,
-                            DeviceState *plugged_dev,
-                            Error **errp)
+void hotplug_handler_unplug_request(HotplugHandler *plug_handler,
+                                    DeviceState *plugged_dev,
+                                    Error **errp)
 {
     HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler);
 
-    if (hdc->unplug) {
-        hdc->unplug(plug_handler, plugged_dev, errp);
+    if (hdc->unplug_request) {
+        hdc->unplug_request(plug_handler, plugged_dev, errp);
     }
 }
 
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index df97003289..87ed438475 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -227,7 +227,8 @@ void qdev_unplug(DeviceState *dev, Error **errp)
     qdev_hot_removed = true;
 
     if (dev->parent_bus && dev->parent_bus->hotplug_handler) {
-        hotplug_handler_unplug(dev->parent_bus->hotplug_handler, dev, errp);
+        hotplug_handler_unplug_request(dev->parent_bus->hotplug_handler,
+                                       dev, errp);
     } else {
         assert(dc->unplug != NULL);
         if (dc->unplug(dev) < 0) { /* legacy handler */
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 177023bcaf..530b074551 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -607,8 +607,8 @@ static void ich9_device_plug_cb(HotplugHandler *hotplug_dev,
     ich9_pm_device_plug_cb(&lpc->pm, dev, errp);
 }
 
-static void ich9_device_unplug_cb(HotplugHandler *hotplug_dev,
-                                  DeviceState *dev, Error **errp)
+static void ich9_device_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                          DeviceState *dev, Error **errp)
 {
     error_setg(errp, "acpi: device unplug request for not supported device"
                " type: %s", object_get_typename(OBJECT(dev)));
@@ -676,7 +676,7 @@ static void ich9_lpc_class_init(ObjectClass *klass, void *data)
      */
     dc->cannot_instantiate_with_device_add_yet = true;
     hc->plug = ich9_device_plug_cb;
-    hc->unplug = ich9_device_unplug_cb;
+    hc->unplug_request = ich9_device_unplug_request_cb;
     adevc->ospm_status = ich9_pm_ospm_status;
 }
 
diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
index 92799d08ef..252ea5eb53 100644
--- a/hw/pci-bridge/pci_bridge_dev.c
+++ b/hw/pci-bridge/pci_bridge_dev.c
@@ -150,7 +150,7 @@ static void pci_bridge_dev_class_init(ObjectClass *klass, void *data)
     dc->vmsd = &pci_bridge_dev_vmstate;
     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
     hc->plug = shpc_device_hotplug_cb;
-    hc->unplug = shpc_device_hot_unplug_cb;
+    hc->unplug_request = shpc_device_hot_unplug_request_cb;
 }
 
 static const TypeInfo pci_bridge_dev_info = {
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index 1babddff4d..b64a004631 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -262,8 +262,8 @@ void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
                         PCI_EXP_HP_EV_PDC | PCI_EXP_HP_EV_ABP);
 }
 
-void pcie_cap_slot_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
-                                 Error **errp)
+void pcie_cap_slot_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                         DeviceState *dev, Error **errp)
 {
     uint8_t *exp_cap;
 
diff --git a/hw/pci/pcie_port.c b/hw/pci/pcie_port.c
index fa24877955..40ca8d5d17 100644
--- a/hw/pci/pcie_port.c
+++ b/hw/pci/pcie_port.c
@@ -154,7 +154,7 @@ static void pcie_slot_class_init(ObjectClass *oc, void *data)
 
     dc->props = pcie_slot_props;
     hc->plug = pcie_cap_slot_hotplug_cb;
-    hc->unplug = pcie_cap_slot_hot_unplug_cb;
+    hc->unplug_request = pcie_cap_slot_hot_unplug_request_cb;
 }
 
 static const TypeInfo pcie_slot_type_info = {
diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c
index 1fcb8c4d85..65b2f5103f 100644
--- a/hw/pci/shpc.c
+++ b/hw/pci/shpc.c
@@ -549,8 +549,8 @@ void shpc_device_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
     shpc_interrupt_update(pci_hotplug_dev);
 }
 
-void shpc_device_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
-                               Error **errp)
+void shpc_device_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                       DeviceState *dev, Error **errp)
 {
     Error *local_err = NULL;
     PCIDevice *pci_hotplug_dev = PCI_DEVICE(hotplug_dev);