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Message-ID: <20101028110321.GA24711@Krystal> Date: Thu, 28 Oct 2010 07:03:21 -0400 From: Mathieu Desnoyers <mathieu.desnoyers@...icios.com> To: Steven Rostedt <rostedt@...dmis.org> Cc: linux-kernel@...r.kernel.org Subject: Re: [PATCH] tracing: fix TRACE_EVENT power tracepoint creation * Steven Rostedt (rostedt@...dmis.org) wrote: > On Wed, 2010-10-27 at 22:16 -0400, Mathieu Desnoyers wrote: > > DEFINE_TRACE should also exist when CONFIG_EVENT_TRACING=n. Otherwise, setting > > only TRACEPOINTS=y is broken. > > NAK, DEFINE_TRACE is deprecated from use outside the tracing > infrastructure. > [...] > The trace/events/power.h file should handle the DEFINE_TRACE() when > CONFIG_EVENT_TRACING is not set. Thus, this is the wrong fix. DEFINE_TRACE() must only be done once over the whole kernel for a particular tracepoint. Currently, it is done in power-traces.c when CONFIG_EVENT_TRACING is activated. This is the only instance where trace/power.h is included with CREATE_TRACE_POINTS set. Given that trace/power.h is inluded in more than one .c file, generating DEFINE_TRACE() when CREATE_TRACE_POINTS is not set does not work. So what alternative do you suggest ? Thanks, Mathieu -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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