perf maps: Set the kmaps for newly created/added kernel maps

When using __maps__insert_sorted() the map kmaps field needs to be
initialized, as we need kernel maps to work with map__kmap().

Fix it by using the newly introduced map__set_kmap() method.

Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Link: https://lore.kernel.org/lkml/Z74V0hZXrTLM6VIJ@x1
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>

tools/perf/util/maps.c

@@ -798,6 +798,9 @@ static int __maps__insert_sorted(struct maps *maps, unsigned int first_after_ind
 	}
 	RC_CHK_ACCESS(maps)->nr_maps = nr_maps + to_add;
 	maps__set_maps_by_name_sorted(maps, false);
+	map__set_kmap_maps(new1, maps);
+	map__set_kmap_maps(new2, maps);
+
 	check_invariants(maps);
 	return 0;
 }