1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/if_phonet.h b/include/linux/if_phonet.h
index 22df25fbc4e2..7e989216ec17 100644
--- a/include/linux/if_phonet.h
+++ b/include/linux/if_phonet.h
@@ -12,3 +12,7 @@
 /* 6 bytes header + 65535 bytes payload */
 #define PHONET_MAX_MTU          65541
 #define PHONET_DEV_MTU          PHONET_MAX_MTU
+
+#ifdef __KERNEL__
+extern struct header_ops phonet_header_ops;
+#endif