linux-kernel - Re: [PATCH v9 02/22] tracing: Make ftrace_event

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Date:	Tue, 21 Jul 2015 09:26:00 -0500
From:	Tom Zanussi <tom.zanussi@...ux.intel.com>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	rostedt@...dmis.org, daniel.wagner@...-carit.de,
	namhyung@...nel.org, josh@...htriplett.org, andi@...stfloor.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 02/22] tracing: Make ftrace_event_field checking
 functions available

On Tue, 2015-07-21 at 19:04 +0900, Masami Hiramatsu wrote:
> On 2015/07/17 2:22, Tom Zanussi wrote:
> > Make is_string_field() and is_function_field() accessible outside of
> > trace_event_filters.c for other users of ftrace_event_fields.
> > 
> > Signed-off-by: Tom Zanussi <tom.zanussi@...ux.intel.com
> 
> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> 
> BTW, is there any reason why we split this from caller-side change?
> this short change can be merged into the patch which actual requires this.
> 

I kept it separate because I thought it would be useful regardless of
whether the rest of the hist triggers patchset got merged or not.  So
I'd rather keep it separate for that reason.

Tom

> Thanks,
> 
> > ---
> >  kernel/trace/trace.h               | 12 ++++++++++++
> >  kernel/trace/trace_events_filter.c | 12 ------------
> >  2 files changed, 12 insertions(+), 12 deletions(-)
> > 
> > diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
> > index 4c41fcd..891c5b0 100644
> > --- a/kernel/trace/trace.h
> > +++ b/kernel/trace/trace.h
> > @@ -1050,6 +1050,18 @@ struct filter_pred {
> >  	unsigned short		right;
> >  };
> >  
> > +static inline bool is_string_field(struct ftrace_event_field *field)
> > +{
> > +	return field->filter_type == FILTER_DYN_STRING ||
> > +	       field->filter_type == FILTER_STATIC_STRING ||
> > +	       field->filter_type == FILTER_PTR_STRING;
> > +}
> > +
> > +static inline bool is_function_field(struct ftrace_event_field *field)
> > +{
> > +	return field->filter_type == FILTER_TRACE_FN;
> > +}
> > +
> >  extern enum regex_type
> >  filter_parse_regex(char *buff, int len, char **search, int *not);
> >  extern void print_event_filter(struct trace_event_file *file,
> > diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
> > index 71511eb..245ee5d 100644
> > --- a/kernel/trace/trace_events_filter.c
> > +++ b/kernel/trace/trace_events_filter.c
> > @@ -917,18 +917,6 @@ int filter_assign_type(const char *type)
> >  	return FILTER_OTHER;
> >  }
> >  
> > -static bool is_function_field(struct ftrace_event_field *field)
> > -{
> > -	return field->filter_type == FILTER_TRACE_FN;
> > -}
> > -
> > -static bool is_string_field(struct ftrace_event_field *field)
> > -{
> > -	return field->filter_type == FILTER_DYN_STRING ||
> > -	       field->filter_type == FILTER_STATIC_STRING ||
> > -	       field->filter_type == FILTER_PTR_STRING;
> > -}
> > -
> >  static int is_legal_op(struct ftrace_event_field *field, int op)
> >  {
> >  	if (is_string_field(field) &&
> > 
> 
> 


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