diff options
| -rw-r--r-- | tools/bpf/bpftool/main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c index d72dd73a4016..d294bc8168be 100644 --- a/tools/bpf/bpftool/main.c +++ b/tools/bpf/bpftool/main.c @@ -288,6 +288,7 @@ int main(int argc, char **argv) hash_init(prog_table.table); hash_init(map_table.table); + opterr = 0; while ((opt = getopt_long(argc, argv, "Vhpjf", options, NULL)) >= 0) { switch (opt) { @@ -313,7 +314,11 @@ int main(int argc, char **argv) show_pinned = true; break; default: - usage(); + p_err("unrecognized option '%s'", argv[optind - 1]); + if (json_output) + clean_and_exit(-1); + else + usage(); } } |