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    Subject[tip:perf/mce] x86, mce: Add a global MCE init helper
    Commit-ID:  b33a6363649f0ff83ec81597ea7fe7e688f973cb
    Gitweb: http://git.kernel.org/tip/b33a6363649f0ff83ec81597ea7fe7e688f973cb
    Author: Borislav Petkov <borislav.petkov@amd.com>
    AuthorDate: Fri, 16 Oct 2009 12:31:33 +0200
    Committer: Ingo Molnar <mingo@elte.hu>
    CommitDate: Fri, 16 Oct 2009 14:46:50 +0200

    x86, mce: Add a global MCE init helper

    Add an early initcall (pre SMP) which sets up global MCE
    functionality.

    Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
    Cc: Andi Kleen <andi@firstfloor.org>
    LKML-Reference: <1255689093-26921-2-git-send-email-borislav.petkov@amd.com>
    Signed-off-by: Ingo Molnar <mingo@elte.hu>
    ---
    arch/x86/kernel/cpu/mcheck/mce.c | 10 ++++++++--
    1 files changed, 8 insertions(+), 2 deletions(-)

    diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
    index 68d968e..8080170 100644
    --- a/arch/x86/kernel/cpu/mcheck/mce.c
    +++ b/arch/x86/kernel/cpu/mcheck/mce.c
    @@ -1436,8 +1436,6 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c)
    __mcheck_cpu_init_timer();
    INIT_WORK(&__get_cpu_var(mce_work), mce_process_work);

    - if (raw_smp_processor_id() == 0)
    - atomic_notifier_chain_register(&x86_mce_decoder_chain, &mce_dec_nb);
    }

    /*
    @@ -1657,6 +1655,14 @@ static int __init mcheck_enable(char *str)
    }
    __setup("mce", mcheck_enable);

    +static int __init mcheck_init(void)
    +{
    + atomic_notifier_chain_register(&x86_mce_decoder_chain, &mce_dec_nb);
    +
    + return 0;
    +}
    +early_initcall(mcheck_init);
    +
    /*
    * Sysfs support
    */

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