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Message-ID: <20230731103445.497e48d8@gandalf.local.home>
Date:   Mon, 31 Jul 2023 10:34:45 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v2] tracing: Add a debug_trace_printk() function

On Sun, 30 Jul 2023 10:43:21 +0900
Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:

> Sorry, I missed this patch.
> As far as it depends CONFIG_FTRACE_DEBUG_PRINT, this looks good to me.
> 
> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>

Thanks, note I've been holding off on applying it to make sure I really do
need it. I have used it twice since posting. It's great to debug something
in the tracing infrastructure ;-)

> 
> BTW, what about adding generic trace_loglvl_printk(loglvl, fmt, ...)?
> 
> This is a macro that will be expanded to 'trace_loglvl_<N>_printk(fmt, ...)'
> where N is 0-9. Then we can filter the trace_loglvl_N_printk event to a
> specific instance.

Hmm, interesting idea. I'll have to think about it.

-- Steve

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