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    Subject[tip:perfcounters/core] perf_counter, x86: declare perf_max_counters only for CONFIG_PERF_COUNTERS
    Commit-ID:  829b42dd395c5801f6ae87da87ecbdcfd5ef1a6c
    Gitweb: http://git.kernel.org/tip/829b42dd395c5801f6ae87da87ecbdcfd5ef1a6c
    Author: Robert Richter <robert.richter@amd.com>
    AuthorDate: Wed, 29 Apr 2009 12:46:59 +0200
    Committer: Ingo Molnar <mingo@elte.hu>
    CommitDate: Wed, 29 Apr 2009 14:51:01 +0200

    perf_counter, x86: declare perf_max_counters only for CONFIG_PERF_COUNTERS

    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>


    ---
    include/linux/perf_counter.h | 3 ++-
    1 files changed, 2 insertions(+), 1 deletions(-)

    diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
    index 9814328..be10b3f 100644
    --- a/include/linux/perf_counter.h
    +++ b/include/linux/perf_counter.h
    @@ -512,12 +512,13 @@ struct perf_cpu_context {
    int recursion[4];
    };

    +#ifdef CONFIG_PERF_COUNTERS
    +
    /*
    * Set by architecture code:
    */
    extern int perf_max_counters;

    -#ifdef CONFIG_PERF_COUNTERS
    extern const struct hw_perf_counter_ops *
    hw_perf_counter_init(struct perf_counter *counter);


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