Re: [Patch iproute2] tc: add performance counters for basic filter

[Stephen Hemminger]

On Tue, 22 Jan 2019 22:41:45 -0800
Cong Wang <xiyou.wangc...@gmail.com> wrote:

> +     if (tb[TCA_BASIC_PCNT]) {
> +             if (RTA_PAYLOAD(tb[TCA_BASIC_PCNT])  < sizeof(*pf)) {
> +                     fprintf(f, "Broken perf counters\n");
> +                     return -1;

Errors should go to stderr not f (which is stdout).