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-rw-r--r--include/uapi/linux/if_bridge.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 296a556454e..05f08695c6c 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -106,6 +106,7 @@ struct __fdb_entry {
#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
#define BRIDGE_MODE_SWDEV 2 /* Full switch device offload */
+#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
/* Bridge management nested attributes
* [IFLA_AF_SPEC] = {