#define prt_tab_rjust(_out) bch2_prt_tab_rjust(_out)
#define prt_bytes_indented(...) bch2_prt_bytes_indented(__VA_ARGS__)
-#define prt_u64(_out, _v) prt_printf(_out, "%llu", _v)
+#define prt_u64(_out, _v) prt_printf(_out, "%llu", (u64) (_v))
#define prt_human_readable_u64(...) bch2_prt_human_readable_u64(__VA_ARGS__)
#define prt_human_readable_s64(...) bch2_prt_human_readable_s64(__VA_ARGS__)
#define prt_units_u64(...) bch2_prt_units_u64(__VA_ARGS__)