From: Rusty Russell Date: Tue, 5 Feb 2008 04:49:58 +0000 (-0500) Subject: virtio: configuration change callback X-Git-Tag: v2.6.25-rc1~1058^2~21 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f957d1f05a1a20bc3b954877c6562a4d53d58bde;p=platform%2Fkernel%2Flinux-3.10.git 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 --- 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);