1 files changed, 4 insertions, 0 deletions

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index a6f74b2b9571..a2cbe61f6e65 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -390,6 +390,10 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
         if (dev->br_port != NULL)
                 return -EBUSY;
 
+        /* No bridging devices that dislike that (e.g. wireless) */
+        if (dev->priv_flags & IFF_DONT_BRIDGE)
+                return -EOPNOTSUPP;
+
         p = new_nbp(br, dev);
         if (IS_ERR(p))
                 return PTR_ERR(p);