Commit df1b57fe authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

virtio_balloon: add legacy_only flag 



We have no plans to support virtio 1.0 in balloon driver.  Add an
explicit flag to mark it legacy only.

This will be used by follow-up patches.

Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 1f0f9106

drivers/virtio/virtio_balloon.c

+1 −0
Original line number Diff line number Diff line
@@ -518,6 +518,7 @@ static unsigned int features[] = { 
};



static struct virtio_driver virtio_balloon_driver = {

	.legacy_only = true,

	.feature_table = features,

	.feature_table_size = ARRAY_SIZE(features),

	.driver.name =	KBUILD_MODNAME,

include/linux/virtio.h

+2 −0
Original line number Diff line number Diff line
@@ -132,6 +132,7 @@ int virtio_device_restore(struct virtio_device *dev); 
 * @feature_table_size: number of entries in the feature table array.

 * @feature_table_legacy: same as feature_table but when working in legacy mode.

 * @feature_table_size_legacy: number of entries in feature table legacy array.

 * @legacy_only: driver does not support virtio 1.0.

 * @probe: the function to call when a device is found.  Returns 0 or -errno.

 * @remove: the function to call when a device is removed.

 * @config_changed: optional function to call when the device configuration
@@ -144,6 +145,7 @@ struct virtio_driver { 
	unsigned int feature_table_size;

	const unsigned int *feature_table_legacy;

	unsigned int feature_table_size_legacy;

	bool legacy_only;

	int (*probe)(struct virtio_device *dev);

	void (*scan)(struct virtio_device *dev);

	void (*remove)(struct virtio_device *dev);