Re: [PATCH] docs: trace: fix event state structure name
From: Tom Zanussi
Date: Fri Nov 06 2020 - 15:47:51 EST
Hi Artem,
On Wed, 2020-11-04 at 14:21 +0200, Artem Bityutskiy wrote:
> From: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
>
> The documentation refers to a non-existent 'struct synth_trace_state'
> structure. The correct name is 'struct synth_event_trace_state'.
>
> In other words, this patch is a mechanical substitution:
> s/synth_trace_state/synth_event_trace_state/g
>
> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
Thanks for fixing this!
Reviewed-by: Tom Zanussi <zanussi@xxxxxxxxxx>
> ---
> Documentation/trace/events.rst | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/trace/events.rst
> b/Documentation/trace/events.rst
> index f792b1959a33..bdba7b0e19ef 100644
> --- a/Documentation/trace/events.rst
> +++ b/Documentation/trace/events.rst
> @@ -787,13 +787,13 @@ To trace a synthetic using the piecewise method
> described above, the
> synth_event_trace_start() function is used to 'open' the synthetic
> event trace::
>
> - struct synth_trace_state trace_state;
> + struct synth_event_trace_state trace_state;
>
> ret = synth_event_trace_start(schedtest_event_file,
> &trace_state);
>
> It's passed the trace_event_file representing the synthetic event
> using the same methods as described above, along with a pointer to a
> -struct synth_trace_state object, which will be zeroed before use and
> +struct synth_event_trace_state object, which will be zeroed before
> use and
> used to maintain state between this and following calls.
>
> Once the event has been opened, which means space for it has been
> @@ -805,7 +805,7 @@ lookup per field.
>
> To assign the values one after the other without lookups,
> synth_event_add_next_val() should be used. Each call is passed the
> -same synth_trace_state object used in the synth_event_trace_start(),
> +same synth_event_trace_state object used in the
> synth_event_trace_start(),
> along with the value to set the next field in the event. After each
> field is set, the 'cursor' points to the next field, which will be
> set
> by the subsequent call, continuing until all the fields have been
> set
> @@ -834,7 +834,7 @@ this method would be (without error-handling
> code)::
> ret = synth_event_add_next_val(395, &trace_state);
>
> To assign the values in any order, synth_event_add_val() should be
> -used. Each call is passed the same synth_trace_state object used in
> +used. Each call is passed the same synth_event_trace_state object
> used in
> the synth_event_trace_start(), along with the field name of the
> field
> to set and the value to set it to. The same sequence of calls as in
> the above examples using this method would be (without error-
> handling
> @@ -856,7 +856,7 @@ can be used but not both at the same time.
>
> Finally, the event won't be actually traced until it's 'closed',
> which is done using synth_event_trace_end(), which takes only the
> -struct synth_trace_state object used in the previous calls::
> +struct synth_event_trace_state object used in the previous calls::
>
> ret = synth_event_trace_end(&trace_state);
>