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-rw-r--r--include/linux/virtio.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index de6d3cc176d9..306137a15d07 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -119,6 +119,8 @@ struct virtio_admin_cmd {
* @index: unique position on the virtio bus
* @failed: saved value for VIRTIO_CONFIG_S_FAILED bit (for restore)
* @config_core_enabled: configuration change reporting enabled by core
+ * @config_driver_disabled: configuration change reporting disabled by
+ * a driver
* @config_change_pending: configuration change reported while disabled
* @config_lock: protects configuration change reporting
* @vqs_list_lock: protects @vqs.
@@ -136,6 +138,7 @@ struct virtio_device {
int index;
bool failed;
bool config_core_enabled;
+ bool config_driver_disabled;
bool config_change_pending;
spinlock_t config_lock;
spinlock_t vqs_list_lock;
@@ -166,6 +169,10 @@ void __virtqueue_break(struct virtqueue *_vq);
void __virtqueue_unbreak(struct virtqueue *_vq);
void virtio_config_changed(struct virtio_device *dev);
+
+void virtio_config_driver_disable(struct virtio_device *dev);
+void virtio_config_driver_enable(struct virtio_device *dev);
+
#ifdef CONFIG_PM_SLEEP
int virtio_device_freeze(struct virtio_device *dev);
int virtio_device_restore(struct virtio_device *dev);