• Len Brown's avatar
    cpuidle / ACPI: remove unused CPUIDLE_FLAG_TIME_INVALID · 62c4cf97
    Len Brown authored
    CPUIDLE_FLAG_TIME_INVALID is no longer checked
    by menu or ladder cpuidle governors, so don't
    bother setting or defining it.
    It was originally invented to account for the fact that
    acpi_safe_halt() enables interrupts to invoke HLT.
    That would allow interrupt service routines to be included
    in the last_idle duration measurements made in cpuidle_enter_state(),
    potentially returning a duration much larger than reality.
    But menu and ladder can gracefully handle erroneously large duration
    intervals without checking for CPUIDLE_FLAG_TIME_INVALID.
    Further, if they don't check CPUIDLE_FLAG_TIME_INVALID, they
    can also benefit from the instances when the duration interval
    is not erroneously large.
    Signed-off-by: default avatarLen Brown <len.brown@intel.com>
    Acked-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>