[PATCH v3 3/3] hw/qdev: Consolidate qdev_get_printable_name() into qdev_get_human_name()

[Alessandro Ratti <alessandro@0x65c.net>]

Rename qdev_get_printable_name() to qdev_get_human_name(), remove
the old qdev_get_human_name() implementation, and switch the three
qdev_get_printable_name() callers in hw/virtio/virtio.c.

qdev_get_printable_name() subsumes qdev_get_human_name(): both
return the device ID when set and fall back to the canonical QOM
path, but qdev_get_printable_name() also tries the bus-specific
path first, providing more informative output.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alessandro Ratti <alessandro@0x65c.net>
---
 hw/core/qdev.c         | 10 +---------
 hw/virtio/virtio.c     |  6 +++---
 include/hw/core/qdev.h | 26 +++++---------------------
 3 files changed, 9 insertions(+), 33 deletions(-)

diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 904e710f8e..93347f67bb 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -411,7 +411,7 @@ char *qdev_get_dev_path(DeviceState *dev)
     return NULL;
 }
 
-const char *qdev_get_printable_name(DeviceState *dev)
+char *qdev_get_human_name(DeviceState *dev)
 {
     if (dev->id) {
         return g_strdup(dev->id);
@@ -857,14 +857,6 @@ Object *machine_get_container(const char *name)
     return container;
 }
 
-char *qdev_get_human_name(DeviceState *dev)
-{
-    g_assert(dev != NULL);
-
-    return dev->id ?
-           g_strdup(dev->id) : object_get_canonical_path(OBJECT(dev));
-}
-
 static MachineInitPhase machine_phase;
 
 bool phase_check(MachineInitPhase phase)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 8fcf6cfd0b..63e2faee99 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -281,7 +281,7 @@ void virtio_init_region_cache(VirtIODevice *vdev, int n)
     len = address_space_cache_init(&new->desc, vdev->dma_as,
                                    addr, size, packed);
     if (len < size) {
-        g_autofree const char *devname = qdev_get_printable_name(DEVICE(vdev));
+        g_autofree char *devname = qdev_get_human_name(DEVICE(vdev));
 
         virtio_error(vdev,
                 "Failed to map descriptor ring for device %s: "
@@ -294,7 +294,7 @@ void virtio_init_region_cache(VirtIODevice *vdev, int n)
     len = address_space_cache_init(&new->used, vdev->dma_as,
                                    vq->vring.used, size, true);
     if (len < size) {
-        g_autofree const char *devname = qdev_get_printable_name(DEVICE(vdev));
+        g_autofree char *devname = qdev_get_human_name(DEVICE(vdev));
 
         virtio_error(vdev,
                 "Failed to map used ring for device %s: "
@@ -307,7 +307,7 @@ void virtio_init_region_cache(VirtIODevice *vdev, int n)
     len = address_space_cache_init(&new->avail, vdev->dma_as,
                                    vq->vring.avail, size, false);
     if (len < size) {
-        g_autofree const char *devname = qdev_get_printable_name(DEVICE(vdev));
+        g_autofree char *devname = qdev_get_human_name(DEVICE(vdev));
 
         virtio_error(vdev,
                 "Failed to map avalaible ring for device %s: "
diff --git a/include/hw/core/qdev.h b/include/hw/core/qdev.h
index b87497906a..43d8e58432 100644
--- a/include/hw/core/qdev.h
+++ b/include/hw/core/qdev.h
@@ -1049,13 +1049,12 @@ Object *machine_get_container(const char *name);
  * qdev_get_human_name() - Return a human-readable name for a device
  * @dev: The device. Must be a valid and non-NULL pointer.
  *
- * .. note::
- *    This function is intended for user friendly error messages.
- *
- * Returns: A newly allocated string containing the device id if not null,
- * else the object canonical path.
+ * Returns: A newly allocated string suitable for user-facing error
+ * messages.
  *
- * Use g_free() to free it.
+ * Return the device's ID if it has one.  Else, return the path of a
+ * device on its bus if it has one.  Else return its canonical QOM
+ * path.
  */
 char *qdev_get_human_name(DeviceState *dev);
 
@@ -1085,21 +1084,6 @@ extern bool qdev_hot_removed;
  */
 char *qdev_get_dev_path(DeviceState *dev);
 
-/**
- * qdev_get_printable_name: Return human readable name for device
- * @dev: Device to get name of
- *
- * Returns: A newly allocated string containing some human
- * readable name for the device, suitable for printing in
- * user-facing error messages. The function will never return NULL,
- * so the name can be used without further checking or fallbacks.
- *
- * Return the device's ID if it has one.  Else, return the path of a
- * device on its bus if it has one.  Else return its canonical QOM
- * path.
- */
-const char *qdev_get_printable_name(DeviceState *dev);
-
 void qbus_set_hotplug_handler(BusState *bus, Object *handler);
 void qbus_set_bus_hotplug_handler(BusState *bus);
 
-- 
2.53.0