1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index 7da2cee8e132..35a8277ec1bd 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -128,6 +128,18 @@ struct igmpmsg
 #ifdef __KERNEL__
 #include <net/sock.h>
 
+#ifdef CONFIG_IP_MROUTE
+static inline int ip_mroute_opt(int opt)
+{
+        return (opt >= MRT_BASE) && (opt <= MRT_BASE + 10);
+}
+#else
+static inline int ip_mroute_opt(int opt)
+{
+        return 0;
+}
+#endif
+
 extern int ip_mroute_setsockopt(struct sock *, int, char __user *, int);
 extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
 extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);