linux-kernel - Re: [PATCH] tracing/kprobes: Simplify the logic of enable_trace

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Date:   Fri, 27 Jul 2018 21:52:02 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Artem Savkov <asavkov@...hat.com>
Subject: Re: [PATCH] tracing/kprobes: Simplify the logic of
 enable_trace_kprobe()

On Thu, 26 Jul 2018 11:43:52 -0500
Josh Poimboeuf <jpoimboe@...hat.com> wrote:

> On Thu, Jul 26, 2018 at 12:11:52PM -0400, Steven Rostedt wrote:
> > 
> > [ Note this is applied on top of the other patch to quiet gcc ]
> > 
> > From: "Steven Rostedt (VMware)" <rostedt@...dmis.org>
> > 
> > The function enable_trace_kprobe() performs slightly differently if the file
> > parameter is passed in as NULL on non-NULL. Instead of checking file twice,
> > move the code between the two tests into a static inline helper function to
> > make the code easier to follow.
> > 
> > Link: http://lkml.kernel.org/r/20180725224728.7b1d5db2@vmware.local.home
> > 
> > Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
> 
> The enable_probe() name is a bit confusing, since it's not clear what
> the difference is between enable_probe() and enable_trace_kprobe()
> without looking at the code.
> 
> Maybe call it __enable_trace_kprobe()?

+1, I this this is better.

With that function name change,

Acked-by: Masami Hiramatsu <mhiramat@...nel.org>

Thanks!

> 
> Otherwise it's a definite improvement.
> 
> Reviewed-by: Josh Poimboeuf <jpoimboe@...hat.com>
> 
> -- 
> Josh


-- 
Masami Hiramatsu <mhiramat@...nel.org>