diff options
| -rw-r--r-- | drivers/virtio/virtio.c | 7 | ||||
| -rw-r--r-- | include/linux/virtio.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index fa6b75db5f1..224f85442f3 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -3,6 +3,7 @@ #include <linux/virtio_config.h> #include <linux/module.h> #include <linux/idr.h> +#include <uapi/linux/virtio_ids.h> /* Unique numbering for virtio devices. */ static DEFINE_IDA(virtio_index_ida); @@ -267,6 +268,12 @@ static struct bus_type virtio_bus = { .remove = virtio_dev_remove, }; +bool virtio_device_is_legacy_only(struct virtio_device_id id) +{ + return id.device == VIRTIO_ID_BALLOON; +} +EXPORT_SYMBOL_GPL(virtio_device_is_legacy_only); + int register_virtio_driver(struct virtio_driver *driver) { /* Catch this early. */ diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 2bbf6269767..d666bcb5740 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -108,6 +108,8 @@ struct virtio_device { void *priv; }; +bool virtio_device_is_legacy_only(struct virtio_device_id id); + static inline struct virtio_device *dev_to_virtio(struct device *_dev) { return container_of(_dev, struct virtio_device, dev); |