ACPI and power management fixes for 3.9-rc6 - Revert of a recent cpuidle change that caused Nehalem machines to hang on boot from Alex Shi. - USB power management fix addressing a crash in the port device object's release routine from Rafael J. Wysocki. - Device PM QoS fix for a potential deadlock related to sysfs interface from Rafael J. Wysocki. - Fix for a cpufreq crash when the /cpus Device Tree node is missing from Paolo Pisati. - Fix for a build issue on ia64 related to the Boot Graphics Resource Table (BGRT) from Tony Luck. - Two fixes for ACPI handles being set incorrectly for device objects that don't correspond to any ACPI namespace nodes in the I2C and SPI subsystems from Rafael J. Wysocki. - Fix for compiler warnings related to CONFIG_PM_DEVFREQ being unset from Rajagopal Venkat. - Fix for a symbol definition typo in cpufreq_governor.h from Borislav Petkov. /