The patch-set was divided from following thread's patch-set. https://lkml.org/lkml/2012/9/5/201 If you want to know the reason, please read following thread. https://lkml.org/lkml/2012/10/2/83 The patch exports "acpi_bus_remove()" for removing a acpi device from a acpi bus at memory hot plug. -- 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