Hi, Some cpuidle drivers assume that cpuidle core will handle cases where device->state_count is smaller than driver->state_count, unfortunately currently this is untrue (device->state_count is used only for handling cpuidle state sysfs entries and driver->state_count is used for all other cases) and will not be fixed in the future as device->state_count is planned to be removed [1]. This patchset fixes such drivers (ARM EXYNOS cpuidle driver and ACPI cpuidle driver), removes superflous device->state_count initialization from drivers for which device->state_count equals driver->state_count (POWERPC pseries cpuidle driver and intel_idle driver) and finally removes state_count field from struct cpuidle_device. Additionaly (while at it) this patchset fixes C1E promotion disable quirk handling (in intel_idle driver) and converts cpuidle drivers code to use the common cpuidle_[un]register() routines (in POWERPC pseries cpuidle driver and intel_idle driver). [1] http://permalink.gmane.org/gmane.linux.power-management.general/36908 Reference to v1: http://comments.gmane.org/gmane.linux.power-management.general/37390 Changes since v1: - synced patch series with next-20131220 - added ACKs from Daniel Lezcano Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics Bartlomiej Zolnierkiewicz (9): ARM: EXYNOS: cpuidle: fix AFTR mode check POWERPC: pseries: cpuidle: remove superfluous dev->state_count initialization POWERPC: pseries: cpuidle: use the common cpuidle_[un]register() routines ACPI / cpuidle: fix max idle state handling with hotplug CPU support ACPI / cpuidle: remove dev->state_count setting intel_idle: do C1E promotion disable quirk for hotplugged CPUs intel_idle: remove superfluous dev->state_count initialization intel_idle: use the common cpuidle_[un]register() routines cpuidle: remove state_count field from struct cpuidle_device arch/arm/mach-exynos/cpuidle.c | 8 +- arch/powerpc/platforms/pseries/processor_idle.c | 59 +--------- drivers/acpi/processor_idle.c | 29 +++-- drivers/cpuidle/cpuidle.c | 3 - drivers/cpuidle/sysfs.c | 5 +- drivers/idle/intel_idle.c | 140 +++++------------------- include/linux/cpuidle.h | 1 - 7 files changed, 51 insertions(+), 194 deletions(-) -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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