On 08/23/2012 03:39 PM, Stephen Hemminger wrote:

On Thu, 23 Aug 2012 15:29:52 -0400
Vlad Yasevich [off-list ref] wrote:

quoted

diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index dd3f201..288ff10 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h

@@ -95,6 +95,7 @@ struct __fdb_entry {
  	__u8 port_hi;
  	__u8 pad0;
  	__u16 unused;
+#define fdb_vid unused

That is seriously ugly. Just change the structure definition
to use the value.

Ok.  I did that originally, but that made it hard to detect in 
userspace.  I'll think of something.

-vlad