linux-kernel - [tip:perfcounters/urgent] perf

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Message-ID: <tip-f738eb1b63edf664da1b4ac76895d988749b2f07@git.kernel.org>
Date:	Tue, 18 Aug 2009 09:39:35 GMT
From:	tip-bot for Ingo Molnar <mingo@...e.hu>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, acme@...hat.com, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	efault@....de, kyle@...artin.ca, fweisbec@...il.com,
	tglx@...utronix.de, deller@....de, mingo@...e.hu
Subject: [tip:perfcounters/urgent] perf_counter: Fix the PARISC build

Commit-ID:  f738eb1b63edf664da1b4ac76895d988749b2f07
Gitweb:     http://git.kernel.org/tip/f738eb1b63edf664da1b4ac76895d988749b2f07
Author:     Ingo Molnar <mingo@...e.hu>
AuthorDate: Tue, 18 Aug 2009 11:32:24 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 18 Aug 2009 11:34:13 +0200

perf_counter: Fix the PARISC build

PARISC does not build:

/home/mingo/tip/kernel/perf_counter.c: In function 'perf_counter_index':
/home/mingo/tip/kernel/perf_counter.c:2016: error: 'PERF_COUNTER_INDEX_OFFSET' undeclared (first use in this function)
/home/mingo/tip/kernel/perf_counter.c:2016: error: (Each undeclared identifier is reported only once
/home/mingo/tip/kernel/perf_counter.c:2016: error: for each function it appears in.)

As PERF_COUNTER_INDEX_OFFSET is not defined.

Now, we could define it in the architecture - but lets also provide
a core default of 0 (which happens to be what all but one
architecture uses at the moment).

Architectures that need a different index offset should set this
value in their asm/perf_counter.h files.

Cc: Kyle McMartin <kyle@...artin.ca>
Cc: Helge Deller <deller@....de>
Cc: linux-parisc@...r.kernel.org
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 kernel/perf_counter.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index b8fe739..36f65e2 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -2019,6 +2019,10 @@ int perf_counter_task_disable(void)
 	return 0;
 }
 
+#ifndef PERF_COUNTER_INDEX_OFFSET
+# define PERF_COUNTER_INDEX_OFFSET 0
+#endif
+
 static int perf_counter_index(struct perf_counter *counter)
 {
 	if (counter->state != PERF_COUNTER_STATE_ACTIVE)
--
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