diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 6c9dd42..26ee66d 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -38,4 +38,14 @@
 			    struct fib_info **last_resort,
 			    int *last_idx, int dflt);
 
+static inline void fib_result_assign(struct fib_result *res,
+				     struct fib_info *fi)
+{
+	if (res->fi != NULL)
+		fib_info_put(res->fi);
+	res->fi = fi;
+	if (fi != NULL)
+		atomic_inc(&fi->fib_clntref);
+}
+
 #endif /* _FIB_LOOKUP_H */