On Tuesday, October 15, 2013 11:04:50 PM Lan Tianyu wrote: > Currently, clearing usb port(empty port) PM Qos NO_POWER_OFF flag twice will lead > the usb port to fall into the infinite loop of runtime pm resume and > suspend. This is caused by pm_request_resume() in the acpi_power_resume_dependent(). > Detail is in the following link. > http://marc.info/?l=linux-acpi&m=138182749202885&w=2 As far as I can say, the bug is in USB, so I'm not quite sure why you want to address it in the ACPI core? Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html