--- a/include/linux-private/linux/in.h
+++ b/include/linux-private/linux/in.h
@@ -82,6 +82,7 @@
 
 #if __UAPI_DEF_IN_ADDR
 /* Internet address. */
+typedef __be32 in_addr_t;
 struct in_addr {
 	__be32	s_addr;
 };