On Thu, 14 Feb 2019 15:29:50 +0000
Quentin Perret <quentin.per...@arm.com> wrote:
> The following commit
>
> 441dae8f2f29 ("tracing: Add support for display of tgid in trace output")
Thanks, I'll take a look at this.
>
> removed the call to print_event_info() from print_func_help_header_irq()
> which results in the ftrace header not reporting the number of entries
> written in the buffer. As this wasn't the original intent of the patch,
> re-introduce the call to print_event_info() to restore the orginal
> behaviour.
>
> Fixes: 441dae8f2f29 ("tracing: Add support for display of tgid in trace
> output")
> Cc: 4.13+ <sta...@vger.kernel.org> # v4.13+
Note, with the "Fixes:" tag, adding the version number is obsolete. Just
Cc: sta...@vger.kernel.org
is sufficient.
-- Steve
> Signed-off-by: Quentin Perret <quentin.per...@arm.com>
> Acked-by: Joel Fernandes <joe...@google.com>
> ---
> kernel/trace/trace.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index c521b7347482..c4238b441624 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -3384,6 +3384,8 @@ static void print_func_help_header_irq(struct
> trace_buffer *buf, struct seq_file
> const char tgid_space[] = " ";
> const char space[] = " ";
>
> + print_event_info(buf, m);
> +
> seq_printf(m, "# %s _-----=> irqs-off\n",
> tgid ? tgid_space : space);
> seq_printf(m, "# %s / _----=> need-resched\n",
