linux-kernel - Re: [RFC PATCH v3 1/4] STM trace event: Adding generic buffer interface driver

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Message-ID: <20150708121029.GE12596@twins.programming.kicks-ass.net>
Date:	Wed, 8 Jul 2015 14:10:29 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Chunyan Zhang <zhang.chunyan@...aro.org>
Cc:	rostedt@...dmis.org, mingo@...hat.com, mathieu.poirier@...aro.org,
	serge.broslavsky@...aro.org, broonie@...nel.org,
	alexander.shishkin@...ux.intel.com, zhang.lyra@...il.com,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v3 1/4] STM trace event: Adding generic buffer
 interface driver

On Tue, Jul 07, 2015 at 06:10:40PM +0800, Chunyan Zhang wrote:
> +config STM_TRACE_EVENT
> +	tristate "Redirect/copy the output from kernel trace event to STM engine"

How does tristate make sense here? You're using it unconditionally for
in-kernel tracepoints. This must be bool, which in turn makes the whole
STM thing bool afaiu.
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