[igt-dev] [PATCH i-g-t 2/3] lib: Add more debugfs and ftrace helpers

[Chris Wilson]

Quoting Ashutosh Dixit (2019-04-02 03:44:20)
> +/* Implement 'echo 0/1 > <debugfs>/tracing/str[i]' */
> +int igt_ftrace_set_events(const char **str, int nstr, bool enable)
> +{
> +       int i, ret, err = 0;
> +
> +       if (igt_ftrace.dir < 0)
> +               return -ENODEV;
> +
> +       for (i = 0; i < nstr; i++) {
> +               ret = igt_sysfs_set(igt_ftrace.dir, str[i],
> +                                   enable ? "1\n" : "0\n");
> +               if (ret)
> +                       err = ret;
> +       }

Why didn't you extend the set of options passed to enable? Do we want to
be adjusting these as the test runs, or should it be setup once for the
test?
-Chris