tcp md5sig: Use skb's saddr when replying to an incoming segment

[pandora-kernel.git] / net / tipc / bearer.h

diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index d696f9e..d97d03f 100644 (file)
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -47,6 +47,13 @@
  */
 #define TIPC_MEDIA_TYPE_ETH    1
 
+/* Message header sizes from msg.h - duplicated to avoid mutual inclusion */
+#define INT_H_SIZE                40
+#define MAX_H_SIZE                60
+
+/* minimum bearer MTU */
+#define TIPC_MIN_BEARER_MTU    (MAX_H_SIZE + INT_H_SIZE)
+
 /*
  * Destination address structure used by TIPC bearers when sending messages
  *
@@ -209,4 +216,13 @@ static inline int tipc_bearer_send(struct tipc_bearer *b_ptr,
        return !b_ptr->media->send_msg(buf, b_ptr, dest);
 }
 
+/* check if device MTU is too low for tipc headers */
+static inline bool tipc_mtu_bad(struct net_device *dev, unsigned int reserve)
+{
+       if (dev->mtu >= TIPC_MIN_BEARER_MTU + reserve)
+               return false;
+       netdev_warn(dev, "MTU too low for tipc bearer\n");
+       return true;
+}
+
 #endif /* _TIPC_BEARER_H */