Merge branch 'pci/hotplug'

Merge branch 'pci/hotplug'

  - Differentiate between pciehp surprise and safe removal (Lukas Wunner)

  - Remove unnecessary pciehp includes (Lukas Wunner)

  - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)

  - Tolerate PCIe Slot Presence Detect being hardwired to zero to
    workaround broken hardware, e.g., the Wilocity switch/wireless device
    (Lukas Wunner)

  - Unify pciehp controller & slot structs (Lukas Wunner)

  - Constify hotplug_slot_ops (Lukas Wunner)

  - Drop hotplug_slot_info (Lukas Wunner)

  - Embed hotplug_slot struct into users instead of allocating it
    separately (Lukas Wunner)

  - Initialize PCIe port service drivers directly instead of relying on
    initcall ordering (Keith Busch)

  - Restore PCI config state after a slot reset (Keith Busch)

  - Save/restore DPC config state along with other PCI config state (Keith
    Busch)

  - Reference count devices during AER handling to avoid race issue with
    concurrent hot removal (Keith Busch)

  - If an Upstream Port reports ERR_FATAL, don't try to read the Port's
    config space because it is probably unreachable (Keith Busch)

  - During error handling, use slot-specific reset instead of secondary
    bus reset to avoid link up/down issues on hotplug ports (Keith Busch)

  - Restore previous AER/DPC handling that does not remove and re-enumerate
    devices on ERR_FATAL (Keith Busch)

  - Notify all drivers that may be affected by error recovery resets (Keith
    Busch)

  - Always generate error recovery uevents, even if a driver doesn't have
    error callbacks (Keith Busch)

  - Make PCIe link active reporting detection generic (Keith Busch)

  - Support D3cold in PCIe hierarchies during system sleep and runtime,
    including hotplug and Thunderbolt ports (Mika Westerberg)

  - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
    are empty or occupied (Jon Derrick)

  - Remove duplicated include from pci/pcie/err.c and unused variable from
    cpqphp (YueHaibing)

  - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
    Pawandeep)

  - Uninline PCI bus accessors for better ftracing (Keith Busch)

  - Remove unused AER Root Port .error_resume method (Keith Busch)

  - Use kfifo in AER instead of a local version (Keith Busch)

  - Use threaded IRQ in AER bottom half (Keith Busch)

  - Use managed resources in AER core (Keith Busch)

  - Reuse pcie_port_find_device() for AER injection (Keith Busch)

  - Abstract AER interrupt handling to disconnect error injection (Keith
    Busch)

  - Refactor AER injection callbacks to simplify future improvments (Keith
    Busch)

* pci/hotplug:
  PCI/AER: Refactor error injection fallbacks
  PCI/AER: Abstract AER interrupt handling
  PCI/AER: Reuse existing pcie_port_find_device() interface
  PCI/AER: Use managed resource allocations
  PCI/AER: Use threaded IRQ for bottom half
  PCI/AER: Use kfifo_in_spinlocked() to insert locked elements
  PCI/AER: Use kfifo for tracking events instead of reimplementing it
  PCI/AER: Remove error source from AER struct aer_rpc
  PCI/AER: Remove unused aer_error_resume()
  PCI: Uninline PCI bus accessors for better ftracing
  PCI/AER: Remove pci_cleanup_aer_uncorrect_error_status() calls
  PCI: pnv_php: Use kmemdup()
  PCI: cpqphp: Remove set but not used variable 'physical_slot'
  PCI/ERR: Remove duplicated include from err.c
  PCI: Equalize hotplug memory and io for occupied and empty slots
  PCI / ACPI: Whitelist D3 for more PCIe hotplug ports
  ACPI / property: Allow multiple property compatible _DSD entries
  PCI/PME: Implement runtime PM callbacks
  PCI: pciehp: Implement runtime PM callbacks
  PCI/portdrv: Add runtime PM hooks for port service drivers
  PCI/portdrv: Resume upon exit from system suspend if left runtime suspended
  PCI: pciehp: Do not handle events if interrupts are masked
  PCI: pciehp: Disable hotplug interrupt during suspend
  PCI / ACPI: Enable wake automatically for power managed bridges
  PCI: Do not skip power-managed bridges in pci_enable_wake()
  PCI: Make link active reporting detection generic
  PCI: Unify device inaccessible
  PCI/ERR: Always report current recovery status for udev
  PCI/ERR: Simplify broadcast callouts
  PCI/ERR: Run error recovery callbacks for all affected devices
  PCI/ERR: Handle fatal error recovery
  PCI/ERR: Use slot reset if available
  PCI/AER: Don't read upstream ports below fatal errors
  PCI/AER: Take reference on error devices
  PCI/DPC: Save and restore config state
  PCI: portdrv: Restore PCI config state on slot reset
  PCI: portdrv: Initialize service drivers directly
  PCI: hotplug: Document TODOs
  PCI: hotplug: Embed hotplug_slot
  PCI: hotplug: Drop hotplug_slot_info
  PCI: hotplug: Constify hotplug_slot_ops
  PCI: pciehp: Reshuffle controller struct for clarity
  PCI: pciehp: Rename controller struct members for clarity
  PCI: pciehp: Unify controller and slot structs
  PCI: pciehp: Tolerate Presence Detect hardwired to zero
  PCI: pciehp: Drop hotplug_slot_ops wrappers
  PCI: pciehp: Drop unnecessary includes
  PCI: pciehp: Differentiate between surprise and safe removal
  PCI: Simplify disconnected marking