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    Subject[PATCH 3.18 05/39] cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores
    Date
    3.18-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Ben Hutchings <ben@decadent.org.uk>

    commit 4cca0457686e4ee1677d69469e4ddfd94d389a80 upstream.

    The switch that conditionally sets CPUPOWER_CAP_HAS_TURBO_RATIO and
    CPUPOWER_CAP_IS_SNB flags is missing a break, so all cores get both
    flags set and an assumed base clock of 100 MHz for turbo values.

    Reported-by: GSR <gsr.bugs@infernal-iceberg.com>
    Tested-by: GSR <gsr.bugs@infernal-iceberg.com>
    References: https://bugs.debian.org/859978
    Fixes: 8fb2e440b223 (cpupower: Show Intel turbo ratio support via ...)
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    tools/power/cpupower/utils/helpers/cpuid.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/tools/power/cpupower/utils/helpers/cpuid.c
    +++ b/tools/power/cpupower/utils/helpers/cpuid.c
    @@ -156,6 +156,7 @@ out:
    */
    case 0x2C: /* Westmere EP - Gulftown */
    cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO;
    + break;
    case 0x2A: /* SNB */
    case 0x2D: /* SNB Xeon */
    case 0x3A: /* IVB */

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