netdev - Re: [PATCH net-next 0/2] DSA trace events

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Date:   Thu, 27 Apr 2023 00:07:50 +0300
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Masami Hiramatsu <mhiramat@...nel.org>, netdev@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net-next 0/2] DSA trace events

On Wed, Apr 26, 2023 at 03:47:13PM -0400, Steven Rostedt wrote:
> I also want to add that if a tool does use a trace event that was not your
> intention, you can then fix the tool to do it properly.
> 
> I had this with powertop. It had hardcoded events (did not use
> libtraceevent) and when I modified the layout, it broke, and Linus reverted
> my changes. After fixing powertop to do things properly, I was able to get
> my changes back in.
> 
> So even if you do break user space, you can still fix it later.

Thanks, this is helpful.