Merge branch 'acpi-pci-hotplug'

Merge branch 'acpi-pci-hotplug'

* acpi-pci-hotplug: (34 commits)
  ACPI / PM: Hold acpi_scan_lock over system PM transitions
  ACPI / hotplug / PCI: Fix NULL pointer dereference in cleanup_bridge()
  PCI / ACPI: Use dev_dbg() instead of dev_info() in acpi_pci_set_power_state()
  ACPI / hotplug / PCI: Get rid of check_sub_bridges()
  ACPI / hotplug / PCI: Clean up bridge_mutex usage
  ACPI / hotplug / PCI: Redefine enable_device() and disable_device()
  ACPI / hotplug / PCI: Sanitize acpiphp_get_(latch)|(adapter)_status()
  ACPI / hotplug / PCI: Get rid of unused constants in acpiphp.h
  ACPI / hotplug / PCI: Check for new devices on enabled slots
  ACPI / hotplug / PCI: Allow slots without new devices to be rescanned
  ACPI / hotplug / PCI: Do not check SLOT_ENABLED in enable_device()
  ACPI / hotplug / PCI: Do not exectute _PS0 and _PS3 directly
  ACPI / hotplug / PCI: Do not queue up event handling work items in vain
  ACPI / hotplug / PCI: Consolidate slot disabling and ejecting
  ACPI / hotplug / PCI: Drop redundant checks from check_hotplug_bridge()
  ACPI / hotplug / PCI: Rework namespace scanning and trimming routines
  ACPI / hotplug / PCI: Store parent in functions and bus in slots
  ACPI / hotplug / PCI: Drop handle field from struct acpiphp_bridge
  ACPI / hotplug / PCI: Drop handle field from struct acpiphp_func
  ACPI / hotplug / PCI: Embed function struct into struct acpiphp_context
  ...