--- /dev/null
+--- a/include/linux/in.h
++++ b/include/linux/in.h
+@@ -15,6 +15,7 @@
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
++#ifndef _NETINET_IN_H
+ #ifndef _LINUX_IN_H
+ #define _LINUX_IN_H
+
+@@ -297,3 +298,4 @@ struct sockaddr_in {
+
+
+ #endif /* _LINUX_IN_H */
++#endif /* _NETINET_IN_H */
+--- a/include/linux/in6.h
++++ b/include/linux/in6.h
+@@ -18,6 +18,7 @@
+ * 2 of the License, or (at your option) any later version.
+ */
+
++#ifndef _NETINET_IN_H
+ #ifndef _LINUX_IN6_H
+ #define _LINUX_IN6_H
+
+@@ -291,3 +292,4 @@ struct in6_flowlabel_req {
+ * MRT6_MAX
+ */
+ #endif /* _LINUX_IN6_H */
++#endif /* _NETINET_IN_H */