bsg: support for full generic block layer SG v3

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/bsg.h b/include/linux/bsg.h
new file mode 100644
index 000000000000..dc0d7282c4cb
--- /dev/null
+++ b/include/linux/bsg.h
@@ -0,0 +1,21 @@
+#ifndef BSG_H
+#define BSG_H
+
+#if defined(CONFIG_BLK_DEV_BSG)
+struct bsg_class_device {
+        struct class_device *class_dev;
+        struct device *dev;
+        int minor;
+        struct gendisk *disk;
+        struct list_head list;
+};
+
+extern int bsg_register_disk(struct gendisk *);
+extern void bsg_unregister_disk(struct gendisk *);
+#else
+struct bsg_class_device { };
+#define bsg_register_disk(disk)         (0)
+#define bsg_unregister_disk(disk)       do { } while (0)
+#endif
+
+#endif