linux-kernel - Re: [RFC][PATCH v1 06/15] perf: export tracepoint events via sysfs: iwlwifi and iwlwifi

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Date:	Thu, 22 Jul 2010 09:30:40 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Lin Ming <ming.m.lin@...el.com>, Ingo Molnar <mingo@...e.hu>,
	Reinette Chatre <reinette.chatre@...el.com>,
	Robert Richter <robert.richter@....com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Greg KH <greg@...ah.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	"eranian@...il.com" <eranian@...il.com>,
	"Gary.Mohr@...l.com" <Gary.Mohr@...l.com>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Paul Mackerras <paulus@...ba.org>,
	"David S. Miller" <davem@...emloft.net>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Will Deacon <will.deacon@....com>,
	Maynard Johnson <mpjohn@...ibm.com>,
	Carl Love <carll@...ibm.com>,
	Kay Sievers <kay.sievers@...y.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC][PATCH v1 06/15] perf: export tracepoint events via
 sysfs: iwlwifi and iwlwifi_io

On Thu, 2010-07-22 at 13:20 +0200, Johannes Berg wrote:
> On Thu, 2010-07-22 at 19:13 +0800, Lin Ming wrote:
> > iwlwifi and iwlwifi_io tracepoint events are exported like below,
> 
> >  drivers/net/wireless/iwlwifi/iwl3945-base.c |   15 +++++++++++++++
> >  1 files changed, 15 insertions(+), 0 deletions(-)
> 
> err, how about iwlagn?


A lot of work went into making the include/trace/events/*.h be able to
automate the work. Now it seems that we are going to hand code a lot,
and a developer that adds a new system or such will now need to
understand the internals of perf to use it. That was what I strived to
avoid when creating the TRACE_EVENT() macros.

-- Steve


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