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[v6,0/4] Simplify PCIe native ownership detection logic

Message ID cover.1593195899.git.sathyanarayanan.kuppuswamy@linux.intel.com (mailing list archive)
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Series Simplify PCIe native ownership detection logic | expand

Message

Kuppuswamy Sathyanarayanan June 26, 2020, 6:32 p.m. UTC 
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

Currently, PCIe capabilities ownership status is detected by
verifying the status of pcie_ports_native, pcie_ports_dpc_native
and _OSC negotiated results (cached in  struct pci_host_bridge
->native_* members). But this logic can be simplified, and we can
use only struct pci_host_bridge ->native_* members to detect it. 

This patchset removes the distributed checks for pcie_ports_native,
pcie_ports_dpc_native parameters.

Changes since v5:
 * Rebased on top of v5.8-rc1

Changes since v4:
 * Changed the patch set title (Original link: https://lkml.org/lkml/2020/5/26/1710)
 * Added AER/DPC dependency logic cleanup fixes.
 
Kuppuswamy Sathyanarayanan (4):
  ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set.
  ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native
    is set.
  PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable
    logic
  PCI/DPC: Move AER/DPC dependency checks out of DPC driver

 drivers/acpi/pci_root.c           | 28 ++++++++++++++++------------
 drivers/pci/hotplug/pciehp_core.c |  2 +-
 drivers/pci/pci-acpi.c            |  3 ---
 drivers/pci/pcie/aer.c            |  2 +-
 drivers/pci/pcie/dpc.c            |  4 +---
 drivers/pci/pcie/portdrv.h        |  2 --
 drivers/pci/pcie/portdrv_core.c   | 13 +++++--------
 drivers/pci/probe.c               |  5 +++--
 include/linux/pci.h               |  2 ++
 9 files changed, 29 insertions(+), 32 deletions(-)