--- zzzz-none-000/linux-4.4.60/include/linux/rhashtable.h	2017-04-08 07:53:53.000000000 +0000
+++ wasp-540e-714/linux-4.4.60/include/linux/rhashtable.h	2019-07-03 09:21:34.000000000 +0000
@@ -346,7 +346,8 @@
 					    struct bucket_table *old_tbl);
 int rhashtable_insert_rehash(struct rhashtable *ht, struct bucket_table *tbl);
 
-int rhashtable_walk_init(struct rhashtable *ht, struct rhashtable_iter *iter);
+int rhashtable_walk_init(struct rhashtable *ht, struct rhashtable_iter *iter,
+			gfp_t gfp);
 void rhashtable_walk_exit(struct rhashtable_iter *iter);
 int rhashtable_walk_start(struct rhashtable_iter *iter) __acquires(RCU);
 void *rhashtable_walk_next(struct rhashtable_iter *iter);