batman-adv: Prevent FTBFS when redefining ether_setup

batman-adv must make sure that ether_setup is already declared via
linux/netdevice.h before the preprocessor can patch the use of it in
batman-adv. Otherwise it is tried to also patch the declaration of
ether_setup.

Fixes: 8da2f5cbb128 ("batman-adv: upgrade package to latest release 2017.2")
Signed-off-by: Sven Eckelmann <sven@narfation.org>

diff --git a/batman-adv/files/compat-hacks.h b/batman-adv/files/compat-hacks.h
index b8bcf72325fa5af9ad5acedb487dff12e21a4847..4ae2bcc7c26e83bfbda9ff288bc88b4f10c3fa75 100644 (file)
--- a/batman-adv/files/compat-hacks.h
+++ b/batman-adv/files/compat-hacks.h
@@ -228,6 +228,8 @@ static inline int batadv_nla_put_u64_64bit(struct sk_buff *skb, int attrtype,
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 9)
 
+#include <linux/netdevice.h>
+
 /* work around missing attribute needs_free_netdev and priv_destructor in
  * net_device
  */