There are many dev pointers in a union in struct file. Prepare to
switch to a single one by introducing a new common one.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 include/lib.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/lib.h b/include/lib.h
index dc56f52..60aaf1c 100644
--- a/include/lib.h
+++ b/include/lib.h
@@ -188,6 +188,7 @@ struct file {
     off_t offset;
     union {
         int fd; /* Any fd from an upper layer. */
+        void *dev;
 	struct {
 	    struct evtchn_port_list ports;
 	} evtchn;
-- 
2.26.2