Commit:     f957d1f05a1a20bc3b954877c6562a4d53d58bde
Parent:     18445c4d501b9ab4336f66ef46b092661ddaf336
Author:     Rusty Russell <[EMAIL PROTECTED]>
AuthorDate: Mon Feb 4 23:49:58 2008 -0500
Committer:  Rusty Russell <[EMAIL PROTECTED]>
CommitDate: Mon Feb 4 23:49:59 2008 +1100

    virtio: configuration change callback
    Various drivers want to know when their configuration information
    changes: the balloon driver is the immediate user, but the network
    driver may one day have a "carrier" status as well.
    This introduces that callback (lguest doesn't use it yet).
    Signed-off-by: Rusty Russell <[EMAIL PROTECTED]>
 include/linux/virtio.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 951d817..78408d5 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -98,12 +98,15 @@ void unregister_virtio_device(struct virtio_device *dev);
  * @probe: the function to call when a device is found.  Returns a token for
  *    remove, or PTR_ERR().
  * @remove: the function when a device is removed.
+ * @config_changed: optional function to call when the device configuration
+ *    changes; may be called in interrupt context.
 struct virtio_driver {
        struct device_driver driver;
        const struct virtio_device_id *id_table;
        int (*probe)(struct virtio_device *dev);
        void (*remove)(struct virtio_device *dev);
+       void (*config_changed)(struct virtio_device *dev);
 int register_virtio_driver(struct virtio_driver *drv);
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