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    Subject[PATCH 02/10] x86 tsc_msr: Identify Intel-specific code
    Date
    From: Len Brown <len.brown@intel.com>

    try_msr_calibrate_tsc() is currently Intel-specific,
    and should not execute on any other vendor's parts.

    Signed-off-by: Len Brown <len.brown@intel.com>
    ---
    arch/x86/kernel/tsc_msr.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/arch/x86/kernel/tsc_msr.c b/arch/x86/kernel/tsc_msr.c
    index 6aa0f4d..4ec5e56 100644
    --- a/arch/x86/kernel/tsc_msr.c
    +++ b/arch/x86/kernel/tsc_msr.c
    @@ -86,6 +86,9 @@ unsigned long try_msr_calibrate_tsc(void)
    unsigned long res;
    int cpu_index;

    + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
    + return 0;
    +
    cpu_index = match_cpu(boot_cpu_data.x86, boot_cpu_data.x86_model);
    if (cpu_index < 0)
    return 0;
    --
    2.9.0
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