linux-kernel - Re: [PATCH RFC net-next] tracing: accelerate tracing filters with BPF

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Message-ID: <20140513230713.1cc7db94@gandalf.local.home>
Date:	Tue, 13 May 2014 23:07:13 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	Ingo Molnar <mingo@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Daniel Borkmann <dborkman@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH RFC net-next] tracing: accelerate tracing filters with
 BPF

On Tue, 13 May 2014 19:55:11 -0700
Alexei Starovoitov <ast@...mgrid.com> wrote:

> --- a/kernel/trace/Kconfig
> +++ b/kernel/trace/Kconfig
> @@ -79,6 +79,7 @@ config FTRACE_NMI_ENTER
>         default y
>  
>  config EVENT_TRACING
> +	depends on NET
>  	select CONTEXT_SWITCH_TRACER
>  	bool
>  

This part makes me a little nervous. I know a lot of embedded devices
depend on tracing, but do they all have network?

They may, but I would like to hear from others in the embedded space.

-- Steve
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