On Thu, 17 Jan 2019 13:18:55 -0800 Cong Wang <xiyou.wangc...@gmail.com> wrote:
> > + if (tb[TCA_MATCHALL_PCNT]) { > + if (RTA_PAYLOAD(tb[TCA_MATCHALL_PCNT]) < sizeof(*pf)) { > + print_string(PRINT_FP, NULL, "Broken perf counters\n", > NULL); This the wrong way to print an error message with iproute2 suite. The correct answer is simple. fprintf(stderr, "Broken perf counters\n"); and better yet give a more informative message that says what is incorrect.