[RFC 0/5] PCI: Use the private field of pci_host_bridge for ACPI device

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Hi Lorenzo,

As our previous discussion, I make a patchset showing the required
effort if we want to use ->private in pci_host_bridge to store ACPI
device pointer on ARM64. This patchset is mostly for discussion purpose.

This patchset is based onto the v5 of my Hyper-V PCI on ARM64 patchset:

	https://lore.kernel.org/lkml/20210726180657.142727-1-boqun.feng@xxxxxxxxx/

, and I've tested it with other code under development to fully enable
Hyper-V virtual PCI on ARM64.

Regards,
Boqun


Boqun Feng (5):
  PCI: Introduce pci_create_root_bus_priv()
  PCI/ACPI: Store ACPI device information in the host bridge structure
  PCI: hv: Set NULL as the ACPI device for the PCI host bridge
  arm64: PCI: Retrieve ACPI device information directly from host
    bridges
  PCI: hv: Remove the dependency of pci_config_window

 arch/arm64/kernel/pci.c             | 14 +-------------
 drivers/acpi/pci_root.c             |  5 +++--
 drivers/pci/controller/pci-hyperv.c | 20 +++++++++++++++-----
 drivers/pci/probe.c                 | 15 ++++++++++++---
 include/linux/pci-acpi.h            |  5 +++++
 include/linux/pci.h                 |  3 +++
 6 files changed, 39 insertions(+), 23 deletions(-)

-- 
2.32.0




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