Ping?
Markus Armbruster <arm...@redhat.com> writes:
> Commit 6287d827d4 "monitor: allow device_del to accept QOM paths"
> extended find_device_state() to accept QOM paths in addition to qdev
> IDs. This added a checked conversion to TYPE_DEVICE at the end, which
> duplicates the check done for the qdev ID case earlier, except it sets
> a *different* error: GenericError "ID is not a hotpluggable device"
> when passed a QOM path, and DeviceNotFound "Device 'ID' not found"
> when passed a qdev ID. Fortunately, the latter won't happen as long
> as we add only devices to /machine/peripheral/.
>
> Earlier, commit b6cc36abb2 "qdev: device_del: Search for to be
> unplugged device in 'peripheral' container" rewrote the lookup by qdev
> ID to use QOM instead of qdev_find_recursive(), so it can handle
> buss-less devices. It does so by constructing an absolute QOM path.
> Works, but object_resolve_path_component() is easier. Switching to it
> also gets rid of the unclean duplication described above.
>
> While there, avoid converting to TYPE_DEVICE twice, first to check
> whether it's possible, and then for real.
>
> Signed-off-by: Markus Armbruster <arm...@redhat.com>
> ---
> softmmu/qdev-monitor.c | 13 +++++--------
> 1 file changed, 5 insertions(+), 8 deletions(-)
>
> diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
> index a304754ab9..d1ab3c25fb 100644
> --- a/softmmu/qdev-monitor.c
> +++ b/softmmu/qdev-monitor.c
> @@ -831,16 +831,12 @@ void qmp_device_add(QDict *qdict, QObject **ret_data,
> Error **errp)
> static DeviceState *find_device_state(const char *id, Error **errp)
> {
> Object *obj;
> + DeviceState *dev;
>
> if (id[0] == '/') {
> obj = object_resolve_path(id, NULL);
> } else {
> - char *root_path = object_get_canonical_path(qdev_get_peripheral());
> - char *path = g_strdup_printf("%s/%s", root_path, id);
> -
> - g_free(root_path);
> - obj = object_resolve_path_type(path, TYPE_DEVICE, NULL);
> - g_free(path);
> + obj = object_resolve_path_component(qdev_get_peripheral(), id);
> }
>
> if (!obj) {
> @@ -849,12 +845,13 @@ static DeviceState *find_device_state(const char *id,
> Error **errp)
> return NULL;
> }
>
> - if (!object_dynamic_cast(obj, TYPE_DEVICE)) {
> + dev = (DeviceState *)object_dynamic_cast(obj, TYPE_DEVICE);
> + if (!dev) {
> error_setg(errp, "%s is not a hotpluggable device", id);
> return NULL;
> }
>
> - return DEVICE(obj);
> + return dev;
> }
>
> void qdev_unplug(DeviceState *dev, Error **errp)
