530 	evsel->follower_skel = bperf_follower_bpf__open();  in bperf__load()
531 	if (!evsel->follower_skel) {  in bperf__load()
538 	bpf_program__set_attach_target(evsel->follower_skel->progs.fexit_XXX,  in bperf__load()
542 	bpf_map__reuse_fd(evsel->follower_skel->maps.diff_readings, diff_map_fd);  in bperf__load()
545 	bpf_map__set_max_entries(evsel->follower_skel->maps.accum_readings,  in bperf__load()
548 	bpf_map__set_max_entries(evsel->follower_skel->maps.filter,  in bperf__load()
550 	err = bperf_follower_bpf__load(evsel->follower_skel);  in bperf__load()
553 		bperf_follower_bpf__destroy(evsel->follower_skel);  in bperf__load()
554 		evsel->follower_skel = NULL;  in bperf__load()
570 		filter_map_fd = bpf_map__fd(evsel->follower_skel->maps.filter);  in bperf__load()
574 	evsel->follower_skel->bss->type = filter_type;  in bperf__load()
576 	err = bperf_follower_bpf__attach(evsel->follower_skel);  in bperf__load()
618 	evsel->follower_skel->bss->enabled = 1;  in bperf__enable()
624 	evsel->follower_skel->bss->enabled = 0;  in bperf__disable()
630 	struct bperf_follower_bpf *skel = evsel->follower_skel;  in bperf__read()
648 		switch (evsel->follower_skel->bss->type) {  in bperf__read()
690 	bperf_follower_bpf__destroy(evsel->follower_skel);  in bperf__destroy()
785 		evsel->follower_skel == NULL;  in bpf_counter_skip()