On Tue, Jun 13, 2023 at 05:30:47PM +0530, Aneesh Kumar K.V wrote: > @@ -4498,7 +4533,7 @@ static bool try_to_inc_max_seq(struct lruvec *lruvec, unsigned long max_seq, > goto done; > } > > - walk = set_mm_walk(NULL, true); > + walk = (struct lru_gen_mm_walk *)set_mm_walk(NULL, true); This isn't C++.