batman-adv: 2014.0.0 compat updates for older kernels

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>

batman-adv/patches/0007-batman-adv-use-vlan_-eth_hdr-instead-of-skb-data-in-.patch

@@ -0,0 +1,49 @@
+From f9170f22998a276e04b4c7d91da4c373609d28b3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@web.de>
+Date: Sun, 19 Jan 2014 22:22:45 +0100
+Subject: [PATCH] batman-adv: use vlan_/eth_hdr() instead of skb->data in
+ interface_tx path
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Our .ndo_start_xmit handler (batadv_interface_tx()) can rely on having
+the skb mac header pointer set correctly since the following commit
+present in kernels >= 3.9:
+
+"net: reset mac header in dev_start_xmit()" (6d1ccff627)
+
+Therefore we can safely use eth_hdr() and vlan_eth_hdr() instead of
+skb->data now, which spares us some ugly type casts.
+
+Signed-off-by: Linus Lüssing <linus.luessing@web.de>
+Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
+---
+ compat.h | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/compat.h b/compat.h
+index 57c9d96..9692ed2 100644
+--- a/compat.h
++++ b/compat.h
+@@ -302,6 +302,17 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p) \
+ }\
+ static int __batadv_interface_set_mac_addr(x, y)
+ 
++#define batadv_interface_tx(x, y) \
++__batadv_interface_tx(struct sk_buff *skb, struct net_device *soft_iface); \
++static int batadv_interface_tx(struct sk_buff *skb, \
++			       struct net_device *soft_iface) \
++{ \
++	skb_reset_mac_header(skb); \
++	return __batadv_interface_tx(skb, soft_iface); \
++} \
++static int __batadv_interface_tx(struct sk_buff *skb, \
++				 struct net_device *soft_iface)
++
+ #define netdev_master_upper_dev_link netdev_set_master
+ #define netdev_upper_dev_unlink(slave, master) netdev_set_master(slave, NULL)
+ #define netdev_master_upper_dev_get(dev) \
+-- 
+1.8.5.3
+