linux-kernel - Re: [PATCH v7 02/10] tracing: add basic event trigger framework

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Message-ID: <20130827151257.49e23316@gandalf.local.home>
Date:	Tue, 27 Aug 2013 15:12:57 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Tom Zanussi <tom.zanussi@...ux.intel.com>
Cc:	masami.hiramatsu.pt@...achi.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 02/10] tracing: add basic event trigger framework

On Mon, 26 Aug 2013 22:55:59 -0500
Tom Zanussi <tom.zanussi@...ux.intel.com> wrote:


> diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
> index b1227b9..1733ac9 100644
> --- a/kernel/trace/trace.h
> +++ b/kernel/trace/trace.h
> @@ -1016,9 +1016,184 @@ extern void trace_event_enable_cmd_record(bool enable);
>  extern int event_trace_add_tracer(struct dentry *parent, struct trace_array *tr);
>  extern int event_trace_del_tracer(struct trace_array *tr);
>  
> +extern struct ftrace_event_file *find_event_file(struct trace_array *tr,
> +						 const char *system,
> +						 const char *event);

This patch breaks bisection as you need to remove the static from
find_event_file() too.

Also, it adds a lot of warnings like "register_event_command" defined
but not used.

My scripts will fail this patch if it adds a warning. No static
function should be added without being used.

-- Steve

> +
> +static inline void *event_file_data(struct file *filp)
> +{
> +	return ACCESS_ONCE(file_inode(filp)->i_private);
> +}
> +
>  extern struct mutex event_mutex;
>  extern struct list_head ftrace_events;
>  
--
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