linux-kernel - Re: [RFC][PATCH 3/8] perf: register pmu implementations

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Message-ID: <20100617233113.GA2302@brick.ozlabs.ibm.com>
Date:	Fri, 18 Jun 2010 09:31:13 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	stephane eranian <eranian@...glemail.com>,
	Robert Richter <robert.richter@....com>,
	Will Deacon <will.deacon@....com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Cyrill Gorcunov <gorcunov@...il.com>,
	Lin Ming <ming.m.lin@...el.com>,
	Yanmin <yanmin_zhang@...ux.intel.com>,
	Deng-Cheng Zhu <dengcheng.zhu@...il.com>,
	David Miller <davem@...emloft.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 3/8] perf: register pmu implementations

On Wed, Jun 16, 2010 at 06:00:30PM +0200, Peter Zijlstra wrote:

> Simple registration interface for struct pmu, this provides the
> infrastructure for removing all the weak functions.

Nice idea...

> @@ -1011,7 +1001,7 @@ static int hw_perf_cache_event(u64 confi
>  	return 0;
>  }
>  
> -struct pmu *hw_perf_event_init(struct perf_event *event)
> +static int power_pmu_event_init(struct perf_event *event)

How does power_pmu_event_init ever get called now?  I don't see any
other references to it in the patch.  Should struct pmu have a
reference to it?

Paul.
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