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perf_counter, x86: declare perf_max_counters only for CONFIG_PERF_COUNTERS

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This is only needed for CONFIG_PERF_COUNTERS enabled.

[ Impact: cleanup ]

Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1241002046-8832-3-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Robert Richter 2009-04-29 12:46:59 +02:00 committed by Ingo Molnar
parent da1a776be1
commit 829b42dd39
1 changed files with 2 additions and 1 deletions
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3
include/linux/perf_counter.h
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@ -512,12 +512,13 @@ struct perf_cpu_context {
int recursion[4]; int recursion[4];
}; };
#ifdef CONFIG_PERF_COUNTERS
/* /*
* Set by architecture code: * Set by architecture code:
*/ */
extern int perf_max_counters; extern int perf_max_counters;
#ifdef CONFIG_PERF_COUNTERS
extern const struct hw_perf_counter_ops * extern const struct hw_perf_counter_ops *
hw_perf_counter_init(struct perf_counter *counter); hw_perf_counter_init(struct perf_counter *counter);